Results 1 to 10 of about 1,302 (222)
Reconfigurable Filtenna using Varactor Diode for Wireless Applications
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021 This paper presents a compact and planar reconfigurable filtenna for application in Wireless systems. The filtenna is composed of a UWB circular antenna and a filter with two trapezoidal resonators.
J. A. I. Araujo +7 more
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X-Shaped Dual-Band Slot Antenna with Simultaneous Pattern Diversity and Frequency Tuning [PDF]
SensorsThis paper proposes a frequency-reconfigurable and active beam-switching antenna based on an X-shaped slot array integrated with a diode-based switching network.
Youngjin Cho, Youngje Sung
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Harmonic Generation by Nondegenerate P-N Junction Varactor Diodes [PDF]
Active and Passive Electronic Components, 1997 This paper deals with the large-signal analysis of nondegenerate p-n junction varactor diodes. Expressions are obtained for the harmonics of the varactor diode current when driven by a sinusoidal voltage signal. The special case of relatively small input
Muhammad Taher Abuelma'atti
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Physical device modeling of a varactor diode
IEEE Transactions on Magnetics, 2004 Starting with the recipe for the fabrication process of a silicon p-n junction varactor diode, the semiconductor device equations are solved using the finite-element method.
Masidlover, Alexander R. +1 more
core +3 more sources
Advanced Electromagnetics, 2018 This paper presents compact UWB cylindrical dielectric resonator antenna with reconfigurable band notch capability using single varactor diode. Theoretical results are achieved for the design with the range of frequencies 4-10.6 GHz.
A. S. Elkorany, S. A. Saad, D. A. Saleeb
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Parametric Amplification/Mixing Using the Varactor Diode [PDF]
Active and Passive Electronic Components, 1996 This paper deals with the large-signal analysis of parametric amplification/mixing using reverse biased p-n junction varactor diodes. Expressions are obtained for the current components of the parametric amplification/mixing.
Muhammad Taher Abuelma'atti
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Multifunctional Programmable Transmissive Metasurface with Phase and Amplitude Manipulation Capability. [PDF]
Adv Sci (Weinh)This work provides a multifunctional programmable transmissive metasurface with phase and amplitude manipulation capability in the sub‐6G band. By applying different coding strategies, the proposed metasurface can realize vortex beam generation, holographic imaging under phase coding mode, and multi‐beam forming in phase‐amplitude joint coding mode ...
Shi HT +8 more
europepmc +2 more sources
Using a negative capacitance to increase the tuning range of a varactor diode in MMIC technology
IEEE Transactions on Microwave Theory and Techniques, 2001 International audienceAn original method to increase the tuning range of a monolithic-microwave integrated-circuit (MMIC) varactor diode is presented in this paper.
Gautier, Jean-Luc +2 more
exaly +2 more sources
Investigation of coplanar waveguide fed SWB antenna with controllable stop band characteristics [PDF]
Scientific ReportsThis study presents a coplanar waveguide (CPW)-fed monopole antenna engineered for super-wideband (SWB) applications. The antenna is designed to resonate at frequencies ranging from 2.44 GHz to over 25 GHz. The prototype is built on an F4B substrate with
Ijaz Khan +10 more
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Tunable Elliptical Split Ring Resonator Using Single Varactor Diode
Advanced Electromagnetics, 2018 In this paper, the effect of changing the structure of split ring resonator SRR from circular to elliptical shape is presented and tested. The theoretical analysis of circular SRR (CSRR) is tested and its results are compared with the simulated ones ...
A. S. Elkorany +3 more
doaj +2 more sources