Results 81 to 90 of about 5,179 (216)
A Reconfigurable MIMO/UWB MIMO Antenna for Cognitive Radio Applications
IEEE Access, 2019 A novel multi-mode frequency reconfigurable MIMO and an ultrawideband (UWB) MIMO antenna design for cognitive radio applications is proposed in this paper.
Xiongwen Zhao +2 more
doaj +1 more source
Varactor-tunable second-order bandpass frequency-selective surface with embedded bias network
, 2016 A varactor-tunable second-order bandpass frequency-selective surface (FSS) for microwave frequencies is presented in this article. The FSS is composed of three stacked metallic layers.
Said Al-Sarawi (522726) +4 more
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IEEE AccessIn this work, a novel GaN/AlN dual-Schottky junction varactor based on the recess electrode structure of a metal-2DEG-metal contact is prepared, and the capacitance and series resistance are significantly reduced due to the removal of the barrier between
Yuhuan Jiang +7 more
doaj +1 more source
Varactor high level mixer [PDF]
, 1969 Varactor microwave frequency mixing ...
Penque, N. J., Rosen, H. A.
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IET Microwaves, Antennas & Propagation, 2019 A novel reconfigurable metasurface beam‐steerable reflector for satellite communication which covers the entire Ku‐band, and supports 300 MHz bandwidth, is suggested in this work. The reflector is based on a new type of electromagnetic bandgap.
David Rotshild, Amir Abramovich
doaj +1 more source
Heterostructure Barrier Varactor Multipliers
, 1998 We describe the Heterostructure Barrier Varactor (HBV) diode and its application in frequency multipliers. Different varactor models are presented that easily can be used in large signal simulations.
Stake, Jan, +2 more
core +1 more source
Varactor diode assembly with low parasitic reactances [PDF]
, 1975 Development of varactor diode assembly overcomes parasitic reactances of conventional varactor packages. In specially constructed assembly very high idler-frequency to signal-frequency ratios are used to obtain low-noise operation over maximum ...
Dickens, L. E.
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Digitally controlled oscillator를 위한 작은 캐패시턴스가 조절되는 Varactor
, 2011 학위논문(석사) - 한국과학기술원 : 정보통신공학과, 2011.2, [ vi, 49 p. ]This thesis reports a novel varactor pairs with small switchable unit capacitance by controlling digital code word.
Choi, Yong-Chang, 최용창
core +3 more sources
Multiple varactor frequency doubler Patent [PDF]
, 1969 Multiple varactor for generating high frequencies with high power and high conversion ...
Habra, J. H.
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IEEE Journal of MicrowavesWireless communication and sensing applications seek higher frequencies to enable higher data rates or more precise localization using a wider modulation bandwidth. Particularly, 6G and autonomous driving research projects focus on the D-band.
Jonathan Bott +2 more
doaj +1 more source