Zobrazeno 1 - 10
of 1 794
pro vyhledávání: '"John L. Volakis"'
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 1, Pp 123-138 (2024)
A 4-channel code-multiplexed digital receiver is presented for multiple-input-multiple-output (MIMO) applications targeting 5G millimeter-wave (mm-Wave) communications. The receiver employs a code-multiplexing (CM) topology where multiple channels ar
Externí odkaz:
https://doaj.org/article/e007d42b0828437ba610ad5391a696c9
Autor:
Matthew W. Nichols, Michail O. Anastasiadis, Malcolm E. Taaffe, Elias A. Alwan, John L. Volakis
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 936-946 (2023)
An ultra-wideband (UWB) phased array is presented operating from UHF to C-bands (0.14 to 5.85 GHz). This new design employs an integrated, compact tapered spline balun in conjunction with a triple-layer semi-resistive frequency selective surface (FSS
Externí odkaz:
https://doaj.org/article/2ec04ad0cc2546a79f511fc5747dbd6c
Autor:
Matthew W. Nichols, Stavros Koulouridis, Satheesh B. Venkatakrishnan, Elias A. Alwan, John L. Volakis
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 724-735 (2023)
A novel approach is presented and demonstrated for integrating a wideband vertically fed antenna array at Millimeter-Wave (mm-Wave) frequencies. Specifically, a novel cost-effective Antenna-In-Package (AiP) fabrication approach is presented, then a p
Externí odkaz:
https://doaj.org/article/c1395c13180b4d639b0f69a8023744dc
Publikováno v:
IEEE Journal of Microwaves, Vol 3, Iss 3, Pp 994-1004 (2023)
Spectrum scarcity for wireless communication and data transfers has prompted interest to analyze interference among wireless links. As more bandwidth is utilized for communication links, there is a growing need to mitigate interference. By exploiting
Externí odkaz:
https://doaj.org/article/0d604dea31244c24a10e0100cc65cef9
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 1206-1217 (2022)
To overcome the limited payload dedicated to onboard antennas for CubeSat/SmallSat applications, this paper presents a novel, foldable, dual-polarized Tightly Coupled Dipole Array (TCDA). In comparison to previous vertical feeds used for TCDAs, this
Externí odkaz:
https://doaj.org/article/e3fd007466bd4408b3c14e8f0e633b62
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 1, Pp 1-17 (2022)
Abstract A novel antenna design technique is proposed, which offers bandwidth enhancement up to the limits defined by element radiation efficiency. The employed technique is referred as frequency pulling (FP) as it mimics the ‘insertion loss design
Externí odkaz:
https://doaj.org/article/16248408e2cd4e74b25e52583128c733
Autor:
Sk Yeahia Been Sayeed, Ghaleb Al Duhni, Hooman Vatan Navaz, John L. Volakis, Markondeya Raj Pulugurtha
Publikováno v:
Sensors, Vol 23, Iss 14, p 6441 (2023)
Wireless passive neural recording systems integrate sensory electrophysiological interfaces with a backscattering-based telemetry system. Despite the circuit simplicity and miniaturization with this topology, the high electrode–tissue impedance cre
Externí odkaz:
https://doaj.org/article/32053230246945988ec35843baf892a5
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 110-117 (2021)
A new approach to enhance the bandwidth of Tightly Coupled Dipole Arrays (TCDA) is presented. The new design achieves the integration of a semi-resistive Frequency Selective Surface network (FSS) composed of a non-resistive low-pass FSS and two resis
Externí odkaz:
https://doaj.org/article/fcf4b498b6484b439849979890831bfe
Autor:
Alexander D. Johnson, Jingni Zhong, Matilda Livadaru, Satheesh Bojja Venkatakrishnan, Elias A. Alwan, John L. Volakis
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 163-169 (2021)
Within the context of modern digital phased array (DPA) radios, differential Radio Frequency (RF) front-ends provide much greater immunity to noise and distortion by suppressing second order harmonics. Recent advancements in differential RF front-end
Externí odkaz:
https://doaj.org/article/4157a42c58814e7e9186d4013afd0d9a
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 464-472 (2021)
Modern phased arrays require large instantaneous bandwidths, wide fields of view, and low profiles to conduct multiple functions. Many of these phased arrays rely on emerging high speed ADCs and advanced balanced transceivers. The benefits of balance
Externí odkaz:
https://doaj.org/article/6f2ee696a263453586549458605e96d9