Search Results - "Volakis, John L."

Real-Time Detection and 3D Localization of Coronary Atherosclerosis Using a Microwave Imaging Technique: A Simulation Study by Islam, Md Asiful, Volakis, John L

“…Obtaining the exact position of accumulated calcium on the inner walls of coronary arteries is critical for successful angioplasty procedures. For the first…”
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Narrowband and Wideband Metamaterial Antennas Based on Degenerate Band Edge and Magnetic Photonic Crystals by Volakis, John L., Sertel, Kubilay

“…Historically, antennas and microwave devices relied on isotropic media. This provided for limited degrees of freedom (one for dielectric and another for…”
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Passive Impedance-Matched Neural Recording Systems for Improved Signal Sensitivity by Sayeed, Sk Yeahia Been, Al Duhni, Ghaleb, Navaz, Hooman Vatan, Volakis, John L, Pulugurtha, Markondeya Raj

“…Wireless passive neural recording systems integrate sensory electrophysiological interfaces with a backscattering-based telemetry system. Despite the circuit…”
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Nonreciprocal and Magnetically Scanned Leaky-Wave Antenna Using Coupled CRLH Lines by Apaydin, Nil, Sertel, Kubilay, Volakis, John L.

“…A new class of miniaturized nonreciprocal leaky-wave antenna (LWA) is proposed for wide angle scanning via magnetic tuning. A design is proposed based on…”
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Wideband RF Self-Interference Cancellation Circuit for Phased Array Simultaneous Transmit and Receive Systems by Venkatakrishnan, Satheesh Bojja, Alwan, Elias A., Volakis, John L.

“…With the growing demand for spectrum utilization, the concept of full duplex transceivers has become attractive. These simultaneous transmit and receive…”
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A Radiating Near-Field Patch Rectenna for Wireless Power Transfer to Medical Implants at 2.4 GHz by DeLong, Brock J., Kiourti, Asimina, Volakis, John L.

“…A radiating near-field method of recharging and activating medical implants using a 2.4-GHz rectifying patch antenna (rectenna) is designed and tested…”
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Bandwidth enhancement of antennas designed by band‐pass filter synthesis due to frequency pulling techniques by Koutinos, Anastasios G., Kyriacou, George A., Volakis, John L., Chryssomallis, Michael T.

“…A novel antenna design technique is proposed, which offers bandwidth enhancement up to the limits defined by element radiation efficiency. The employed…”
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Reconfigurable THz Filters Using Phase-Change Material and Integrated Heater by Sanphuang, Varittha, Ghalichechian, Nima, Nahar, Niru K., Volakis, John L.

“…We report the design, fabrication, and measurements of reconfigurable terahertz (THz) filters using vanadium dioxide (VO2) phase-change material (PCM), which…”
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Nonreciprocal Leaky-Wave Antenna Based on Coupled Microstrip Lines on a Non-Uniformly Biased Ferrite Substrate by Apaydin, Nil, Sertel, Kubilay, Volakis, John L.

“…Previous work demonstrated that nonreciprocal slow waves can be guided on a pair of coupled transmission lines printed on a magnetic substrate. This was done…”
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Textile-Based Large Area RF-Power Harvesting System for Wearable Applications by Vital, Dieff, Bhardwaj, Shubhendu, Volakis, John L.

“…In this article, we demonstrate flexible and lightweight textile-integrated rectenna arrays for powering wearable electronic devices. We propose a method to…”
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Ultrawideband Array With 70° Scanning Using FSS Superstrate by Yetisir, Ersin, Ghalichechian, Nima, Volakis, John L.

“…We present a wideband tightly coupled dipole array (TCDA) with integrated balun and a novel superstrate consisting of printed frequency selective surface (FSS)…”
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E-Textile Conductors and Polymer Composites for Conformal Lightweight Antennas by Bayram, Y, Yijun Zhou, Bong Sup Shim, Shimei Xu, Jian Zhu, Kotov, N A, Volakis, J L

“…We present a conformal and lightweight antenna technology based on E-textile conductors and polymer-ceramic composites. Unique advantages of the proposed…”
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60-GHz Two-Dimensionally Scanning Array Employing Wideband Planar Switched Beam Network by Moulder, W F, Khalil, W, Volakis, J L

“…A two-dimensionally (2-D) scanning array employing a planar switched beam network (SBN) is proposed for 60-GHz high data rate wireless communication. SBNs…”
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Multiband and Multibeam Direction of Arrival Estimation Using On-Site Coding Digital Beamformer by Venkatakrishnan, Satheesh Bojja, Akhiyat, Abe, Alwan, Elias A., Volakis, John L.

“…Ultrawideband system with digital beamforming allows for spatial filtering and multiuser detection without degradation of the signal-to-noise ratio (SNR)…”
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Dual Band Proximity-Fed Stacked Patch Antenna for Tri-Band GPS Applications by Yijun Zhou, Chi-Chih Chen, Volakis, J.L.

“…A novel proximity-fed stacked patch antenna is presented to cover the new GPS band, namely L5 (1176 MHz, available after 2007) together with the L1 and L2…”
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Cross-Mixing Hybrid Beamformer for Wideband Apertures by Hokayem, Rimon, Govindarajulu, Sandhiya Reddy, Alwan, Elias A., Volakis, John L.

“…Existing beamforming arrays suffer from the size and cost of the RF front-end and digital back-end components. In this paper, a novel hybrid beamforming…”
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GaN/AlGaN Solid-State Traveling-Wave Amplifier (SSTWA) Operating at W -Band by Anastasiadis, Michail O., Akhiyat, Abe A., Grisafe, Benjamin, Pavlidis, Dimitris, Volakis, John L.

“…In this work, we report on the first experimental demonstration of a solid-state traveling-wave amplifier (SSTWA) based on a GaN/AlGaN superlattice…”
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Interference Mitigation for 5G Millimeter-Wave Communications by Siafarikas, Dimitrios, Alwan, Elias A., Volakis, John L.

“…We present a novel ultra-wideband low-cost transmit/receive architecture with reduced power and hardware requirements, which includes interference mitigation…”
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Polymer-Ceramic Composites for Microwave Applications: Fabrication and Performance Assessment by Koulouridis, S., Kiziltas, G., Yijun Zhou, Hansford, D.J., Volakis, J.L.

“…We present a novel technique to fabricate conformal and pliable substrates for microwave applications including systems-on-package. The produced materials are…”
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A Wideband, Wide Scanning Tightly Coupled Dipole Array With Integrated Balun (TCDA-IB) by Doane, Jonathan P., Sertel, Kubilay, Volakis, John L.

“…A key challenge in the design of wideband dipole phased arrays is the design of equally wideband baluns which are sufficiently compact to fit within the unit…”
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