William J. Chappell - Publications

Affiliations: 
2001- Electrical and Computer Engineering Purdue University, West Lafayette, IN, United States 

174 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2016 Lee TH, Kim B, Lee K, Chappell WJ, Lee J. Frequency-Tunable Low-Q Lumped-Element Resonator Bandstop Filter With High Attenuation Ieee Transactions On Microwave Theory and Techniques. DOI: 10.1109/Tmtt.2016.2604318  1
2016 Kim YJ, Ha D, Chappell WJ, Irazoqui PP. Selective Wireless Power Transfer for Smart Power Distribution in a Miniature-Sized Multiple-Receiver System Ieee Transactions On Industrial Electronics. 63: 1853-1862. DOI: 10.1109/Tie.2015.2493142  1
2015 Cho YS, Joshi H, Liu X, Sigmarsson HH, Chappell WJ, Peroulis D. Development of 6-12 GHz evanescent-mode two-pole low-loss tunable bandpass filter Microwave and Optical Technology Letters. 57: 2418-2422. DOI: 10.1002/Mop.29356  1
2014 Ha D, Lee TC, Webery DJ, Chappell WJ. Power distribution to multiple implanted sensor devices using a multiport bandpass filter (BPF) approach Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2014.6848656  1
2014 Chappell WJ, Naglich EJ, Maxey C, Guyette AC. Putting the radio in 'Software-Defined Radio': Hardware developments for adaptable RF systems Proceedings of the Ieee. 102: 307-320. DOI: 10.1109/JPROC.2014.2298491  1
2014 Lee J, Kim B, Lee K, Chappell WJ. Bandwidth-enhanced lumped-element absorptive bandstop filter topology and its application to LTCC bandstop filter design International Journal of Microwave and Wireless Technologies. DOI: 10.1017/S1759078714001147  1
2013 Huang YT, Dian BC, Chappell WJ. Spectral signature decay analysis and new tapered coaxial transmission line spectrometer design Ieee Transactions On Microwave Theory and Techniques. 61: 4630-4635. DOI: 10.1109/Tmtt.2013.2286111  1
2013 Naglich EJ, Peroulis D, Chappell WJ. Low-order filter response enhancement in reconfigurable resonator arrays Ieee Transactions On Microwave Theory and Techniques. 61: 4387-4395. DOI: 10.1109/Tmtt.2013.2285357  1
2013 Chen K, Lee J, Chappell WJ, Peroulis D. Co-Design of highly efficient power amplifier and high-Q output bandpass filter Ieee Transactions On Microwave Theory and Techniques. 61: 3940-3950. DOI: 10.1109/Tmtt.2013.2284485  1
2013 Naglich EJ, Lee J, Sigmarsson HH, Peroulis D, Chappell WJ. Intersecting parallel-plate waveguide loaded cavities for dual-mode and dual-band filters Ieee Transactions On Microwave Theory and Techniques. 61: 1829-1838. DOI: 10.1109/Tmtt.2013.2255887  1
2013 Lee J, Naglich EJ, Sigmarsson HH, Peroulis D, Chappell WJ. New bandstop filter circuit topology and its application to design of a bandstop-to-bandpass switchable filter Ieee Transactions On Microwave Theory and Techniques. 61: 1114-1123. DOI: 10.1109/Tmtt.2012.2237036  1
2013 Kim B, Lee J, Jung B, Chappell WJ. RF CMOS integrated on-chip tunable absorptive bandstop filter using Q-tunable resonators Ieee Transactions On Electron Devices. 60: 1730-1737. DOI: 10.1109/Ted.2013.2253557  1
2013 Snow T, Chappell WJ. Directional modulation using independent waveforms at each element of a phased array radar Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2013.6697796  1
2013 Huang YT, Dian BC, Chappell WJ. Large electrical volume coaxial transmission line for microwave chemical sensing Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2013.6697792  1
2013 Wegener AT, Chappell WJ. Coupled antenna scheme using filter design techniques and tunable resonators to show simultaneous transmit and receive Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2013.6697668  1
2013 Naglich EJ, Peroulis D, Chappell WJ. Wide spurious free range positive-to-negative inter-resonator coupling structure for reconfigurable filters Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2013.6697463  1
2013 Wegener AT, Chappell WJ. High isolation in antenna arrays for simultaneous transmit and receive Ieee International Symposium On Phased Array Systems and Technology. 593-597. DOI: 10.1109/ARRAY.2013.6731896  1
2013 Snow T, Chappell WJ. Applications for directional modulation on a digital phased array Ieee International Symposium On Phased Array Systems and Technology. 529-533. DOI: 10.1109/ARRAY.2013.6731883  1
2013 Christianson A, Henrie J, Chappell W. Matching network design for passive intermodulation distortion reduction Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 2247-2248. DOI: 10.1109/APS.2013.6711782  1
2013 Jeong S, Chappell WJ. Effect of spectrally aware tunable front ends on wireless communication systems International Journal of Microwave and Wireless Technologies. 5: 699-707. DOI: 10.1017/S1759078713000779  1
2012 Yang Q, Wang H, Maas JD, Chappell WJ, Manicke NE, Cooks RG, Ouyang Z. Paper spray ionization devices for direct, biomedical analysis using mass spectrometry. International Journal of Mass Spectrometry. 312: 201-207. PMID 22350566 DOI: 10.1016/J.Ijms.2011.05.013  1
2012 Ha D, de Vries WN, John SW, Irazoqui PP, Chappell WJ. Polymer-based miniature flexible capacitive pressure sensor for intraocular pressure (IOP) monitoring inside a mouse eye. Biomedical Microdevices. 14: 207-15. PMID 21987004 DOI: 10.1007/S10544-011-9598-3  1
2012 Huang YT, Hotopp KM, Dian BC, Chappell WJ. Microwave chemical sensing at room temperature using an overmoded waveguide design Ieee Transactions On Microwave Theory and Techniques. 60: 2886-2893. DOI: 10.1109/Tmtt.2012.2203925  1
2012 Lee J, Lee TC, Chappell WJ. Lumped-element realization of absorptive bandstop filter with anomalously high spectral isolation Ieee Transactions On Microwave Theory and Techniques. 60: 2424-2430. DOI: 10.1109/Tmtt.2012.2198237  1
2012 Naglich EJ, Lee J, Peroulis D, Chappell WJ. Switchless tunable bandstop-to-all-pass reconfigurable filter Ieee Transactions On Microwave Theory and Techniques. 60: 1258-1265. DOI: 10.1109/Tmtt.2012.2188723  1
2012 Liu X, Katehi LPB, Chappell WJ, Peroulis D. Power handling of electrostatic MEMS evanescent-mode (EVA) tunable bandpass filters Ieee Transactions On Microwave Theory and Techniques. 60: 270-283. DOI: 10.1109/Tmtt.2011.2176136  1
2012 Naglich EJ, Lee J, Peroulis D, Chappell WJ. Extended passband bandstop filter cascade with continuous 0.85-6.6-GHz coverage Ieee Transactions On Microwave Theory and Techniques. 60: 21-30. DOI: 10.1109/Tmtt.2011.2175245  1
2012 Moon S, Chappell WJ. Novel self-assembly process using magnetically aligned z-axis anisotropic conductive adhesive for high-density vertical interconnection Ieee Transactions On Components, Packaging and Manufacturing Technology. 2: 756-763. DOI: 10.1109/Tcpmt.2012.2186138  1
2012 Snow T, Lee J, Chappell WJ. Tunable high quality-factor absorptive bandstop filter design Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2012.6259759  1
2012 Huang YT, Hotopp KM, Dian BC, Chappell WJ. Microwave chemical sensing using an 3-18 GHz wideband overmoded coaxial cable Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2012.6259724  1
2012 Ha D, Lin TY, De Vries WN, Kim B, Chlebowski AL, John SWM, Irazoqui PP, Chappell WJ. A compact-size packaged third-order harmonic tag for intraocular pressure (IOP) monitoring inside a mouse eye Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2012.6259672  1
2012 Wegener AT, Chappell WJ. Simultaneous Transmit and Receive with a small planar array Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2012.6259663  1
2012 Bauman B, Christianson A, Wegener A, Chappell WJ. Dynamic visualization of antenna patterns and phased-array beam steering Ieee Antennas and Propagation Magazine. 54: 184-193. DOI: 10.1109/Map.2012.6293983  1
2012 Sigmarsson HH, Naglich E, Lee J, Peroulis D, Chappell W. Tunable bandpass and bandstop filter cascade for dynamic pole allocation Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). DOI: 10.1109/APS.2012.6348902  1
2012 Maeng J, Ha D, Chappell WJ, Irazoqui PP. Parylene as thin flexible 3-D packaging enabler for biomedical implants Proceedings - 2012 45th International Symposium On Microelectronics, Imaps 2012. 176-185.  1
2011 Kubendran R, Krishnan H, Manola B, John SW, Chappell WJ, Irazoqui PP. A generic miniature multi-feature programmable wireless powering headstage ASIC for implantable biomedical systems. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2011: 5617-20. PMID 22255613 DOI: 10.1109/IEMBS.2011.6091359  1
2011 Sung PF, Hsieh YL, Angonese K, Dunn D, King RJ, Machbitz R, Christianson A, Chappell WJ, Taylor LS, Harris MT. Complex dielectric properties of microcrystalline cellulose, anhydrous lactose, and α-lactose monohydrate powders using a microwave-based open-reflection resonator sensor. Journal of Pharmaceutical Sciences. 100: 2920-34. PMID 21328582 DOI: 10.1002/Jps.22516  1
2011 Xu W, Maas JB, Boudreau FJ, Chappell WJ, Ouyang Z. Nondestructive ion trap mass analysis at high pressure. Analytical Chemistry. 83: 685-9. PMID 21171635 DOI: 10.1021/Ac1027808  1
2011 Maeng J, Kim B, Ha D, Chappell WJ. Parylene interposer as thin flexible 3-D packaging enabler for wireless applications Ieee Transactions On Microwave Theory and Techniques. 59: 3410-3418. DOI: 10.1109/Tmtt.2011.2172626  1
2011 Snow T, Fulton C, Chappell WJ. Transmit-receive duplexing using digital beamforming system to cancel self-interference Ieee Transactions On Microwave Theory and Techniques. 59: 3494-3503. DOI: 10.1109/Tmtt.2011.2172625  1
2011 Lee J, Naglich EJ, Sigmarsson HH, Peroulis D, Chappell WJ. Tunable inter-resonator coupling structure with positive and negative values and its application to the Field-Programmable Filter Array (FPFA) Ieee Transactions On Microwave Theory and Techniques. 59: 3389-3400. DOI: 10.1109/Tmtt.2011.2171711  1
2011 Moon S, Chappell WJ. Analysis of failure rate by column distribution in magnetically aligned anisotropic conductive adhesive Ieee Transactions On Components, Packaging and Manufacturing Technology. 1: 784-791. DOI: 10.1109/Tcpmt.2011.2111374  1
2011 Chow EY, Yang CL, Ouyang Y, Chlebowski AL, Irazoqui PP, Chappell WJ. Wireless powering and the study of RF propagation through ocular tissue for development of implantable sensors Ieee Transactions On Antennas and Propagation. 59: 2379-2387. DOI: 10.1109/Tap.2011.2144551  1
2011 Maeng J, Kim BG, Ha D, Chappell WJ. Thin-film multilayer Parylene interposer for high-density 3D packaging with embedded capacitors Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972979  1
2011 Snow T, Fulton C, Chappell WJ. Multi-antenna near field cancellation duplexing for concurrent transmit and receive Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972977  1
2011 Lin TY, Ha D, De Vries WN, Kim B, Chlebowski A, John SWM, Irazoqui PP, Chappell WJ. Ultra-thin tag fabrication and sensing technique using third harmonic for implantable wireless sensors Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972975  1
2011 Arif MS, Irshad W, Liu X, Chappell WJ, Peroulis D. A high-Q magnetostatically-tunable all-silicon evanescent cavity resonator Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972966  1
2011 Maas JD, Chappell WJ. RF planar ion trap for chemical sensing Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972959  1
2011 Lee J, Naglich EJ, Sigmarsson HH, Peroulis D, Chappell WJ. Frequency-agile field-programmable filter array (FPFA) with multiple functionalities Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972946  1
2011 Naglich EJ, Lee J, Peroulis D, Chappell WJ. High-Q tunable bandstop filters with adaptable bandwidth and pole allocation Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972936  1
2011 Chen K, Liu X, Chappell WJ, Peroulis D. Co-design of power amplifier and narrowband filter using high-Q evanescent-mode cavity resonator as the output matching network Ieee Mtt-S International Microwave Symposium Digest. DOI: 10.1109/MWSYM.2011.5972854  1
2011 Liu X, Chen K, Katehi LPB, Chappell WJ, Peroulis D. System-level characterization of bias noise effects on electrostatic RF MEMS tunable filters Proceedings of the Ieee International Conference On Micro Electro Mechanical Systems (Mems). 797-800. DOI: 10.1109/MEMSYS.2011.5734545  1
2011 Liu X, Small J, Berdy D, Katehi LPB, Chappell WJ, Peroulis D. Impact of mechanical vibration on the performance of RF MEMS evanescent-mode tunable resonators Ieee Microwave and Wireless Components Letters. 21: 406-408. DOI: 10.1109/Lmwc.2011.2160159  1
2011 Fulton C, Chappell W. A dual-polarized patch antenna for weather radar applications 2011 Ieee International Conference On Microwaves, Communications, Antennas and Electronic Systems, Comcas 2011. DOI: 10.1109/COMCAS.2011.6105940  1
2011 Xu W, Chappell WJ, Ouyang Z. Modeling of ion transient response to dipolar AC excitation in a quadrupole ion trap International Journal of Mass Spectrometry. 308: 49-55. DOI: 10.1016/J.Ijms.2011.07.022  1
2011 Liu X, Fruehling A, Katehi LPB, Chappell WJ, Peroulis D. Capacitive monitoring of electrostatic MEMS tunable evanescent-mode cavity resonators European Microwave Week 2011: "Wave to the Future", Eumw 2011, Conference Proceedings - 6th European Microwave Integrated Circuit Conference, Eumic 2011. 466-469.  1
2010 Chow EY, Ha D, Lin TY, Devries WN, John SW, Chappell WJ, Irazoqui PP. Sub-cubic millimeter intraocular pressure monitoring implant to enable genetic studies on pressure-induced neurodegeneration. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2010: 6429-32. PMID 21096710 DOI: 10.1109/IEMBS.2010.5627324  1
2010 Chow EY, Chlebowski AL, Chakraborty S, Chappell WJ, Irazoqui PP. Fully wireless implantable cardiovascular pressure monitor integrated with a medical stent. Ieee Transactions On Bio-Medical Engineering. 57: 1487-96. PMID 20172781 DOI: 10.1109/Tbme.2010.2041058  1
2010 Song Q, Xu W, Smith SA, Gao L, Chappell WJ, Cooks RG, Ouyang Z. Ion trap mass analysis at high pressure: an experimental characterization. Journal of Mass Spectrometry : Jms. 45: 26-34. PMID 19862776 DOI: 10.1002/Jms.1684  1
2010 Chen K, Liu X, Kovacs A, Chappell WJ, Peroulis D. Antibiased electrostatic RF MEMS varactors and tunable filters Ieee Transactions On Microwave Theory and Techniques. 58: 3971-3981. DOI: 10.1109/Tmtt.2010.2088135  1
2010 Moon S, Chappell WJ. Novel three-dimensional packaging approaches using magnetically aligned anisotropic conductive adhesive for microwave applications Ieee Transactions On Microwave Theory and Techniques. 58: 3815-3823. DOI: 10.1109/Tmtt.2010.2086630  1
2010 Naglich EJ, Lee J, Peroulis D, Chappell WJ. A tunable bandpass-to-bandstop reconfigurable filter with independent bandwidths and tunable response shape Ieee Transactions On Microwave Theory and Techniques. 58: 3770-3779. DOI: 10.1109/Tmtt.2010.2086533  1
2010 Naglich EJ, Lee J, Peroulis D, Chappell WJ. Bandpass-bandstop filter cascade performance over wide frequency tuning ranges Ieee Transactions On Microwave Theory and Techniques. 58: 3945-3953. DOI: 10.1109/Tmtt.2010.2084587  1
2010 Henrie JJ, Christianson AJ, Chappell WJ. Linear-nonlinear interaction and passive intermodulation distortion Ieee Transactions On Microwave Theory and Techniques. 58: 1230-1237. DOI: 10.1109/Tmtt.2010.2045527  1
2010 Moon S, Chappell WJ. Adjustable dielectric using magnetically aligned conductive particles for microwave applications Ieee Mtt-S International Microwave Symposium Digest. 1288-1291. DOI: 10.1109/MWSYM.2010.5518060  1
2010 Ha D, Kim BG, Lin TY, Ouyang Y, Irazoqui P, Chappell WJ. 3D packaging technique on liquid crystal polymer (LCP) for miniature wireless biomedical sensor Ieee Mtt-S International Microwave Symposium Digest. 612-615. DOI: 10.1109/MWSYM.2010.5518032  1
2010 Sigmarsson HH, Lee J, Peroulis D, Chappell WJ. Reconfigurable-order bandpass filter for frequency agile systems Ieee Mtt-S International Microwave Symposium Digest. 1756-1759. DOI: 10.1109/MWSYM.2010.5518024  1
2010 Fulton C, Chappell WJ. Calibration of a digital phased array for polarimetric radar Ieee Mtt-S International Microwave Symposium Digest. 161-164. DOI: 10.1109/MWSYM.2010.5517964  1
2010 Naglich EJ, Lee J, Peroulis D, Chappell WJ. Tunable, substrate integrated, high Q filter cascade for high isolation Ieee Mtt-S International Microwave Symposium Digest. 1468-1471. DOI: 10.1109/MWSYM.2010.5517351  1
2010 Maas JD, Xu W, Hendricks P, Chappell WJ. Miniature radio frequency ion trap mass spectrometry Ieee Mtt-S International Microwave Symposium Digest. 1636-1639. DOI: 10.1109/MWSYM.2010.5516819  1
2010 Hoppenjans EE, Chappell WJ. A vertically integrated tunable UHF filter Ieee Mtt-S International Microwave Symposium Digest. 1380-1383. DOI: 10.1109/MWSYM.2010.5516256  1
2010 Lee J, Naglich EJ, Chappell WJ. Frequency response control in frequency-tunable bandstop filters Ieee Microwave and Wireless Components Letters. 20: 669-671. DOI: 10.1109/Lmwc.2010.2080669  1
2010 Moon S, Sigmarsson HH, Joshi H, Chappell WJ. Substrate integrated evanescent-mode cavity filter with a 3.5 to 1 tuning ratio Ieee Microwave and Wireless Components Letters. 20: 450-452. DOI: 10.1109/Lmwc.2010.2050680  1
2010 Jeong S, Chappell WJ. A city-wide smart wireless sewer sensor network using parasitic slot array antennas Ieee Antennas and Wireless Propagation Letters. 9: 760-763. DOI: 10.1109/Lawp.2010.2060710  1
2010 Liu X, Katehi LPB, Chappell WJ, Peroulis D. High-Q tunable microwave cavity resonators and filters using SOI-based RF MEMS tuners Journal of Microelectromechanical Systems. 19: 774-784. DOI: 10.1109/Jmems.2010.2055544  1
2010 Maas JD, Hendricks PI, Ouyang Z, Cooks RG, Chappell WJ. Miniature monolithic rectilinear ion trap arrays by stereolithography on printed circuit board Journal of Microelectromechanical Systems. 19: 951-960. DOI: 10.1109/Jmems.2010.2048554  1
2010 Chow EY, Chakraborty S, Chappell WJ, Irazoqui PP. Mixed-signal integrated circuits for self-contained sub-cubic millimeter biomedical implants Digest of Technical Papers - Ieee International Solid-State Circuits Conference. 53: 236-237. DOI: 10.1109/ISSCC.2010.5433933  1
2010 Chappell W, Fulton C. Digital Array Radar panel development Ieee International Symposium On Phased Array Systems and Technology. 50-60. DOI: 10.1109/ARRAY.2010.5613391  1
2010 Snow T, Naglich EJ, Chappell WJ. Concurrent multifunction transmit and receive applications with dynamic filtering Ieee International Symposium On Phased Array Systems and Technology. 461-466. DOI: 10.1109/ARRAY.2010.5613328  1
2010 Fulton C, Chappell W. Calibration of panelized polarimetric phased array radar antennas: A case study Ieee International Symposium On Phased Array Systems and Technology. 860-867. DOI: 10.1109/ARRAY.2010.5613262  1
2010 Jeong S, Chappell WJ. Adaptive composite antennas for a city-wide sensor network Iet Microwaves, Antennas and Propagation. 4: 1916-1926. DOI: 10.1049/Iet-Map.2009.0473  1
2010 Ha D, Lin TY, Kim BG, Irazoqui PP, Chappell WJ. Advanced 3D packaging of miniature biomedical sensors 43rd International Symposium On Microelectronics 2010, Imaps 2010. 543-547.  1
2010 Sigmarsson HH, Binkerd E, Maas J, Lee J, Peroulis D, Chappell WJ. Practical implementation of frequency monitoring for widely tunable bandpass filters 43rd International Symposium On Microelectronics 2010, Imaps 2010. 874-880.  1
2009 Chow EY, Beier BL, Francino A, Chappell WJ, Irazoqui PP. Toward an implantable wireless cardiac monitoring platform integrated with an FDA-approved cardiovascular stent. Journal of Interventional Cardiology. 22: 479-87. PMID 19807844 DOI: 10.1111/J.1540-8183.2009.00483.X  1
2009 Xu W, Song Q, Smith SA, Chappell WJ, Ouyang Z. Ion trap mass analysis at high pressure: a theoretical view. Journal of the American Society For Mass Spectrometry. 20: 2144-53. PMID 19682924 DOI: 10.1016/J.Jasms.2009.06.019  1
2009 Fico M, Maas JD, Smith SA, Costa AB, Ouyang Z, Chappell WJ, Cooks RG. Circular arrays of polymer-based miniature rectilinear ion traps. The Analyst. 134: 1338-47. PMID 19562199 DOI: 10.1039/B822140E  1
2009 Xu W, Chappell WJ, Cooks RG, Ouyang Z. Characterization of electrode surface roughness and its impact on ion trap mass analysis. Journal of Mass Spectrometry : Jms. 44: 353-60. PMID 19021150 DOI: 10.1002/Jms.1512  1
2009 Ouyang Y, Love DJ, Chappell WJ. Body-worn distributed MIMO system Ieee Transactions On Vehicular Technology. 58: 1752-1765. DOI: 10.1109/Tvt.2008.2004491  1
2009 Joshi H, Sigmarsson HH, Moon S, Peroulis D, Chappell WJ. High-Q fully reconfigurable tunable bandpass filters Ieee Transactions On Microwave Theory and Techniques. 57: 3525-3533. DOI: 10.1109/Tmtt.2009.2034309  1
2009 Chow EY, Ouyang Y, Beier B, Chappell WJ, Irazoqui PP. Evaluation of cardiovascular stents as antennas for implantable wireless applications Ieee Transactions On Microwave Theory and Techniques. 57: 2523-2532. DOI: 10.1109/Tmtt.2009.2029954  1
2009 Joshi H, Sigmarsson HH, Moon S, Peroulis D, Chappell WJ. Tunable high Q narrow-band triplexer Ieee Mtt-S International Microwave Symposium Digest. 1477-1480. DOI: 10.1109/MWSYM.2009.5165987  1
2009 Chow EY, Beier B, Ouyang Y, Chappell WJ, Irazoqui PP. High frequency transcutaneous transmission using stents configured as a dipole radiator for cardiovascular implantable devices Ieee Mtt-S International Microwave Symposium Digest. 1317-1320. DOI: 10.1109/MWSYM.2009.5165947  1
2009 Christianson A, Chappell W. Measurement of ultra low passive intermodulation with ability to separate current/voltage induced nonlinearities Ieee Mtt-S International Microwave Symposium Digest. 1301-1304. DOI: 10.1109/MWSYM.2009.5165943  1
2009 Liu X, Katehi LPB, Chappell WJ, Peroulis D. A 3.4 - 6.2 GHz continuously tunable electrostatic MEMS resonator with quality factor of 460-530 Ieee Mtt-S International Microwave Symposium Digest. 1149-1152. DOI: 10.1109/MWSYM.2009.5165905  1
2009 Hoppenjans EE, Chappell WJ. The use of high Q toroid inductors for LTCC integrated tunable VHF filters Ieee Mtt-S International Microwave Symposium Digest. 905-908. DOI: 10.1109/MWSYM.2009.5165844  1
2009 Wegener A, Fulton C, Gregory J, Chappell W. Large area integration of embedded high power RF amplifiers in a thin organic panel Ieee Mtt-S International Microwave Symposium Digest. 801-804. DOI: 10.1109/MWSYM.2009.5165818  1
2009 Moon S, Khanna SK, Chappell WJ. Multilayer silicon RF system-in-package technique using magnetically aligned anisotropic conductive adhesive Ieee Mtt-S International Microwave Symposium Digest. 797-800. DOI: 10.1109/MWSYM.2009.5165817  1
2009 Sigmarsson HH, Christianson A, Joshi H, Moon S, Peroulis D, Chappell WJ. In-situ control of tunable evanescent-mode cavity filters using differential mode monitoring Ieee Mtt-S International Microwave Symposium Digest. 633-636. DOI: 10.1109/MWSYM.2009.5165776  1
2009 Joshi H, Sigmarsson HH, Moon S, Peroulis D, Chappell WJ. High Q narrow-band tunable filters with controllable bandwidth Ieee Mtt-S International Microwave Symposium Digest. 629-632. DOI: 10.1109/MWSYM.2009.5165775  1
2009 Jeong S, Chappell WJ. Lost node recovery in a city-wide wireless sensor network using adaptive preselect filtering Ieee Mtt-S International Microwave Symposium Digest. 229-232. DOI: 10.1109/MWSYM.2009.5165674  1
2009 Fulton C, Clough P, Pai V, Chappell W. A digital array radar with a hierarchical system architecture Ieee Mtt-S International Microwave Symposium Digest. 89-92. DOI: 10.1109/MWSYM.2009.5165639  1
2009 Henrie J, Christianson A, Chappell WJ. Engineered passive nonlinearities for broadband passive intermodulation distortion mitigation Ieee Microwave and Wireless Components Letters. 19: 614-616. DOI: 10.1109/Lmwc.2009.2029733  1
2009 Fulton C, Chappell W. Calibration techniques for digital phased arrays 2009 Ieee International Conference On Microwaves, Communications, Antennas and Electronics Systems, Comcas 2009. DOI: 10.1109/COMCAS.2009.5385979  1
2009 Jeong S, Ha D, Chappell WJ. A planar parasitic array antenna for tunable radiation pattern Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). DOI: 10.1109/APS.2009.5171454  1
2009 Liu X, Katehi LPB, Chappell WJ, Peroulis D. Power handling capability of high-Q evanescent-mode RF MEMS resonators with flexible diaphragm Apmc 2009 - Asia Pacific Microwave Conference 2009. 194-197. DOI: 10.1109/APMC.2009.5385409  1
2009 Henrie J, Christianson A, Chappell WJ. Linear-nonlinear interaction's effect on the power dependence of nonlinear distortion products Applied Physics Letters. 94. DOI: 10.1063/1.3098068  1
2009 Moon S, Chappell WJ. Column distribution analysis and RF characterization of high-density vertical interconnections created by magnetically aligned anisotropic conductive adhesive Proceedings - 2009 International Symposium On Microelectronics, Imaps 2009. 706-710.  1
2009 Sigmarsson HH, Joshi H, Moon S, Peroulis D, Chappell WJ. Substrate integration of widely tunable bandpass filters Proceedings - 2009 International Symposium On Microelectronics, Imaps 2009. 711-716.  1
2009 Hoppenjans EE, Chappell WJ. The design and integration of a quasi-distributed tunable UHF filter Proceedings - 2009 International Symposium On Microelectronics, Imaps 2009. 871-875.  1
2008 Krasniewski MD, Panta RK, Bagchi S, Yang CL, Chappell WJ. Energy-efficient on-demand reprogramming of large-scale sensor networks Acm Transactions On Sensor Networks. 4. DOI: 10.1145/1325651.1325653  1
2008 Christianson AJ, Henrie JJ, Chappell WJ. Higher order intermodulation product measurement of passive components Ieee Transactions On Microwave Theory and Techniques. 56: 1729-1736. DOI: 10.1109/Tmtt.2008.925238  1
2008 Gong X, Smyth T, Ghaneie E, Chappell WJ. High-Q resonators and filters inside advanced low-temperature co-fired ceramic substrates using fine-scale periodicity Ieee Transactions On Microwave Theory and Techniques. 56: 922-930. DOI: 10.1109/Tmtt.2008.919375  1
2008 Chow EY, Yang CL, Chlebowski A, Moon S, Chappell WJ, Irazoqui PP. Implantable wireless telemetry boards for in Vivo transocular transmission Ieee Transactions On Microwave Theory and Techniques. 56: 3200-3208. DOI: 10.1109/Tmtt.2008.2007338  1
2008 Moon S, Sigmarsson HH, Huang Y, Bruemmer T, Khanna SK, Chappell WJ. Magnetically aligned anisotropic conductive adhesive for microwave applications Ieee Transactions On Microwave Theory and Techniques. 56: 2942-2949. DOI: 10.1109/Tmtt.2008.2007309  1
2008 Henrie J, Christianson A, Chappell WJ. Prediction of passive intermodulation from coaxial connectors in microwave networks Ieee Transactions On Microwave Theory and Techniques. 56: 209-216. DOI: 10.1109/Tmtt.2007.912166  1
2008 Ouyang Y, Chappell WJ. High frequency properties of electro-textiles for wearable antenna applications Ieee Transactions On Antennas and Propagation. 56: 381-389. DOI: 10.1109/Tap.2007.915435  1
2008 Henrie J, Christianson A, Chappell WJ. Cancellation of passive intermodulation distortion in microwave networks Proceedings of the 38th European Microwave Conference, Eumc 2008. 1153-1156. DOI: 10.1109/EUMC.2008.4751663  1
2008 Fulton C, Chappell W. Low-cost, panelized digital array radar antennas 2008 Ieee International Conference On Microwaves, Communications, Antennas and Electronic Systems, Comcas 2008. DOI: 10.1109/COMCAS.2008.4562782  1
2008 Jeong S, Yang CL, Courter JR, Kim SI, Byron Pipes R, Chappell WJ. Multilayer composite for below ground embedded sensor networking 2008 Ieee International Symposium On Antennas and Propagation and Usnc/Ursi National Radio Science Meeting, Apsursi. DOI: 10.1109/APS.2008.4619245  1
2008 Sigmarsson HH, Joshi H, Peroulis D, Chappell WJ. 3-6 GHz tunable bandpass filter using heavily loaded evanescent-mode cavity resonators and piezoelectric actuators Proceedings - 2008 International Symposium On Microelectronics, Imaps 2008. 360-366.  1
2008 Moon S, Chappell WJ. Vertical interconnects using magnetically aligned anisotropic conductive adhesive for RF packaging Proceedings - 2008 International Symposium On Microelectronics, Imaps 2008. 970-974.  1
2007 Fico M, Yu M, Ouyang Z, Cooks RG, Chappell WJ. Miniaturization and geometry optimization of a polymer-based rectilinear ion trap. Analytical Chemistry. 79: 8076-82. PMID 17914891 DOI: 10.1021/Ac0711384  1
2007 Ouyang Z, Gao L, Fico M, Chappell WJ, Noll RJ, Cooks RG. Quadrupole ion traps and trap arrays: geometry, material, scale, performance. European Journal of Mass Spectrometry (Chichester, England). 13: 13-8. PMID 17878533 DOI: 10.1255/Ejms.832  1
2007 Choi TY, Sharifi H, Sigmarsson HH, Chappell WJ, Mohammadi S, Katehi LPB. 3-D integration of 10-GHz filter and CMOS receiver front-end Ieee Transactions On Microwave Theory and Techniques. 55: 2298-2305. DOI: 10.1109/Tmtt.2007.907351  1
2007 Ouyang Y, Chappell WJ. Electro-textiles for body worn integrated silicon solutions 2007 Topical Meeting On Silicon Monolithic Integrated Circuits in Rf Systems, Sirf07. 107-110. DOI: 10.1109/SMIC.2007.322781  1
2007 Ouyang Y, Chappell W. Distributed body-worn transceiver system with the use of electro-textile antennas Ieee Mtt-S International Microwave Symposium Digest. 1229-1232. DOI: 10.1109/MWSYM.2007.380389  1
2007 Joshi H, Sigmarsson HH, Peroulis D, Chappell WJ. Highly loaded evanescent cavities for widely tunable high-Q filters Ieee Mtt-S International Microwave Symposium Digest. 2133-2136. DOI: 10.1109/MWSYM.2007.380346  1
2007 Hoppenjans EE, Chappell WJ. High value passive component integration in LTCC technology Ieee Mtt-S International Microwave Symposium Digest. 1913-1916. DOI: 10.1109/MWSYM.2007.380147  1
2007 Mahmood A, Sigmarsson HH, Joshi H, Chappell WJ, Peroulis D. An evanescent-mode cavity resonator based thermal sensor Proceedings of Ieee Sensors. 950-953. DOI: 10.1109/ICSENS.2007.4388560  1
2007 Yang CL, Chappell WJ. Angular diversity - Prominent for compact devices of wireless sensor network in indoor environments Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 1689-1692. DOI: 10.1109/APS.2007.4395838  1
2007 Kinzel EC, Sigmarsson HH, Xu X, Chappell WJ. Laser sintering of thick-film conductors for microelectronic applications Journal of Applied Physics. 101. DOI: 10.1063/1.2433711  1
2007 Gong X, She WH, Chappell WJ. Aperiodic artificial substrates for multipole bandpass filters Iet Microwaves, Antennas and Propagation. 1: 240-247. DOI: 10.1049/Iet-Map:20050337  1
2006 Wu G, Cooks RG, Ouyang Z, Yu M, Chappell WJ, Plass WR. Ion trajectory simulation for electrode configurations with arbitrary geometries. Journal of the American Society For Mass Spectrometry. 17: 1216-28. PMID 16793279 DOI: 10.1016/J.Jasms.2006.05.004  1
2006 Wing ZN, Halloran JW, Gong X, She WH, Hoppenjans E, Chappell WJ. Fabrication and properties of an anisotropic TiO 2 dielectric composite Journal of the American Ceramic Society. 89: 2812-2815. DOI: 10.1111/J.1551-2916.2006.01134.X  1
2006 Joshi H, Chappell WJ. Dual-band lumped-element bandpass filter Ieee Transactions On Microwave Theory and Techniques. 54: 4169-4176. DOI: 10.1109/Tmtt.2006.885576  1
2006 Yang CL, Bagchi S, Chappell WJ. Topology insensitive location determination using independent estimates through semi-directional antennas Ieee Transactions On Antennas and Propagation. 54: 3458-3472. DOI: 10.1109/Tap.2006.884294  1
2006 Sigmarsson HH, Kinzel EC, Xu X, Chappell WJ. Selective laser sintering of multilayer, multimaterial circuit components Ieee Mtt-S International Microwave Symposium Digest. 1788-1791. DOI: 10.1109/MWSYM.2006.249739  1
2006 Yu M, Fico M, Kothari S, Ouyang Z, Chappell WJ. Polymer-based ion trap chemical sensor Ieee Sensors Journal. 6: 1429-1434. DOI: 10.1109/Jsen.2006.883853  1
2006 Wang R, Koh CK, Jung B, Chappell WJ. Clock generation and distribution using traveling-wave oscillators with reflection and regeneration Proceedings of the Custom Integrated Circuits Conference. 781-784. DOI: 10.1109/CICC.2006.320996  1
2006 Ouyang Y, Chappell WJ. Diversity characterization of body-worn textile antenna system at 2.4 GHz Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 2117-2120. DOI: 10.1109/APS.2006.1711001  1
2006 Xun G, Smyth T, Chappell WJ. Cofiring different dielectric constants inside LTCC for metamaterial applications Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 1935-1938. DOI: 10.1109/APS.2006.1710953  1
2006 Mastarone JF, Chappell WJ. Urban sensor networking using thick slots in manhole covers Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 779-782. DOI: 10.1109/APS.2006.1710643  1
2005 Kinzel EC, Sigmarsson HH, Xu X, Chappell WJ. Heat transfer in laser sintering of thick-film microelectronics American Society of Mechanical Engineers, Heat Transfer Division, (Publication) Htd. 376: 895-901. DOI: 10.1115/IMECE2005-79928  1
2005 Gong X, She WH, Hoppenjans EE, Wing ZN, Geyer RG, Halloran JW, Chappell WJ. Tailored and anisotropic dielectric constants through porosity in ceramic components Ieee Transactions On Microwave Theory and Techniques. 53: 3638-3647. DOI: 10.1109/TMTT.2005.859039  1
2005 Hajela S, Gong X, Chappell WJ. Widely tunable high-Q evanescent-mode resonators using flexible polymer substrates Ieee Mtt-S International Microwave Symposium Digest. 2005: 2139-2142. DOI: 10.1109/MWSYM.2005.1517172  1
2005 Ouyang Y, Chappell W. Measurement of electrotextiles for high frequency applications Ieee Mtt-S International Microwave Symposium Digest. 2005: 1679-1682. DOI: 10.1109/MWSYM.2005.1517035  1
2005 She WH, Wing ZN, Halloran JW, Chappell WJ. Variable dielectric constants by structured porosity for passive ceramic components Ieee Mtt-S International Microwave Symposium Digest. 2005: 865-868. DOI: 10.1109/MWSYM.2005.1516755  1
2005 Huang Y, Gong X, Bruemmer T, Khanna SK, Chappell WJ. Magnetically aligned anisotropic conductive adhesive for high-frequency interconnects Ieee Mtt-S International Microwave Symposium Digest. 2005: 861-864. DOI: 10.1109/MWSYM.2005.1516754  1
2005 She WH, Hoppenjans EE, Chappell WJ. Embedded dielectric resonator filter in layered polymer packaging Ieee Mtt-S International Microwave Symposium Digest. 2005: 261-264. DOI: 10.1109/MWSYM.2005.1516575  1
2005 Yang CL, Bagchi S, Chappell WJ. Location tracking with directional antennas in wireless sensor networks Ieee Mtt-S International Microwave Symposium Digest. 2005: 131-134. DOI: 10.1109/MWSYM.2005.1516540  1
2005 Yang CL, Mastarone JF, Chappell WJ. Directional antennas for angular diversity in wireless sensor networks Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 4: 263-266. DOI: 10.1109/APS.2005.1552638  1
2005 Ouyang Y, Karayianni E, Chappell WJ. Effect of fabric patterns on electrotextile patch antennas Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 2: 246-249. DOI: 10.1109/APS.2005.1551986  1
2005 Huang Y, Gong X, Hajela S, Chappell WJ. Layer-by-layer stereolithography of three-dimensional antennas Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 1: 276-279. DOI: 10.1109/APS.2005.1551302  1
2005 Sigmarsson HH, Kinzel EC, Chappell WJ, Xu X. Thick film metallization in ambient air using selective laser sintering Proceedings - 2005 International Symposium On Microelectronics, Imaps 2005. 691-699.  1
2005 Hoppenjans EE, She WH, Chappell WJ. A dielectric resonator buried in a layered polymer package Proceedings - 2005 International Symposium On Microelectronics, Imaps 2005. 397-404.  1
2004 Reilly CJ, Chappell WJ, Halloran JW, Katehi LPB. High-frequency electromagnetic bandgap structures via indirect solid freeform fabrication Journal of the American Ceramic Society. 87: 1446-1453. DOI: 10.1111/J.1551-2916.2004.01446.X  1
2004 Liu B, Gong X, Chappell WJ. Applications of layer-by-layer polymer stereolithography for three-dimensional high-frequency components Ieee Transactions On Microwave Theory and Techniques. 52: 2567-2575. DOI: 10.1109/Tmtt.2004.837165  1
2004 Gong X, Margomenos A, Liu B, Hajela S, Katehi LPB, Chappell WJ. Precision fabrication techniques and analysis on high-Q evanescent-mode resonators and filters of different geometries Ieee Transactions On Microwave Theory and Techniques. 52: 2557-2566. DOI: 10.1109/Tmtt.2004.837162  1
2004 Gong X, Liu B, Katehi LPB, Chappell WJ. Layer-by-layer stereolithography (SL) of complex medium Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 1: 325-328.  1
2004 She WH, Gong X, Chappell WJ. Fundamental constraints on two-dimensional EBG substrates Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 2: 1419-1422.  1
2004 Mills AK, Chappell WJ. On the use of commercial FEM electromagnetic software in an undergraduate curriculum Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 3: 3365-3368.  1
2004 Liu B, Gong X, Chappell WJ. Layer-by-layer polymer stereolithography fabrication for three-dimensional RF components Ieee Mtt-S International Microwave Symposium Digest. 2: 481-484.  1
2004 Gong X, Margomenos A, Liu B, Chappell WJ, Katehi LPB. High-Q evanescent-mode filters using silicon micromachining and polymer stereolithography (SL) processing Ieee Mtt-S International Microwave Symposium Digest. 2: 433-436.  1
2004 Gong X, Liu B, Katehi LPB, Chappell WJ. Laser-based polymer stereolithography of vertically integrated narrow bandpass filters operating in K band Ieee Mtt-S International Microwave Symposium Digest. 2: 425-428.  1
2003 Chappell WJ, Reilly C, Halloran J, Katehi LPB. Ceramic synthetic substrates using solid freeform fabrication Ieee Transactions On Microwave Theory and Techniques. 51: 752-760. DOI: 10.1109/Tmtt.2003.808727  1
2003 Chappell WJ, Gong X. Wide Bandgap Composite EBG Substrates Ieee Transactions On Antennas and Propagation. 51: 2744-2750. DOI: 10.1109/Tap.2003.817569  1
2003 Gong X, Chappell WJ, Katehi LPB. Multifunctional substrates for high-frequency applications Ieee Microwave and Wireless Components Letters. 13: 428-430. DOI: 10.1109/Lmwc.2003.818525  1
2003 Gong X, Katehi LPB, Chappell WJ. Effective medium properties of finely periodic substrates Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 1: 489-492.  1
2003 Gong X, Chappell WJ, Katehi LPB. Embedded radiating filters in metamaterial substrates Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 3: 351-354.  1
2003 Chappell WJ, Gong X, Katehi LPB. Narrow ka bandpass filters using periodically loaded substrates Ieee Mtt-S International Microwave Symposium Digest. 3: 1611-1614.  1
2002 Reilly C, Chappell WJ, Halloran J, Sarabandi K, Volakis J, Kikuchi N, Katehi LPB. New fabrication technology for ceramic metamaterials Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 2: 376-379.  1
2002 Gong X, Chappell WJ, Katehi LPB. Reduced size capacitive defect EBG resonators Ieee Mtt-S International Microwave Symposium Digest. 2: 1091-1094.  1
2001 Chappell WJ, Little MP, Katehi LPB. High isolation, planar filters using EBG substrates Ieee Microwave and Wireless Components Letters. 11: 246-248. DOI: 10.1109/7260.928927  1
1999 Shumpert JD, Chappell WJ, Katehi LPB. Parallel-plate mode reduction in conductor-backed slots using electromagnetic bandgap substrates Ieee Transactions On Microwave Theory and Techniques. 47: 2099-2104. DOI: 10.1109/22.798005  1
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