Results 21 to 30 of about 152,070 (212)
Microstrip Tunable Bandpass Filter with the Colinear Resonators
International Journal of Antennas and Propagation, 2013 This paper presents the lumped element circuit and transmission line equivalent circuit for a varactor-tuned bandpass filter. The filter consists of transmission lines, fixed capacitors, and a varactor diode.
Z. P. Wang +3 more
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Parametric Amplification/Mixing Using the Varactor Diode
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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Independently Tunable Concurrent Dual-Band VCO Using Square Open-Loop Resonator
IEEE Access, 2018 A concurrent dual-band voltage-controlled oscillator (VCO) with independently tunable dual oscillation frequencies is proposed. A shared square open-loop dual-mode resonator and two varactor diodes are the basic units offering flexible tuning for the ...
Boqiong Li +3 more
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Low‐Complexity Phase–Transition‐Based VO2 Transmissive Reconfigurable Intelligent Surface for Indoor Millimeter‐Wave Communications [PDF]
NanophotonicsWe demonstrate a VO2‐based transmissive reconfigurable intelligent surface for indoor millimeter‐wave communication. The TRIS replaces conventional PIN and varactor diodes with geometrically tailored VO2 switches, enabling transmitted phase control through phase‐transition‐based switching.
Kim J, Bark S, Lee M, Lim S.
europepmc +2 more sources
Electronically tuned 23 GHz Gunn oscillators for a microwave datalink [PDF]
, 1988 Includes bibliographical references.A market has been identified for 23 GHz, short-haul, low-capacity, digital radio. The dissertation presents the development of the varactor controlled Gunn oscillators that constitute the crystal locked microwave ...
Kratzenstein, L
core +1 more source
IEEE Access, 2021 This paper proposes a varactor-based circuit technique intended for amplitude and phase control, with improved linearity in the presence of parasitic capacitances and parasitic inductances.
David Berthiaume +2 more
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, 2010 The application of a novel biasing technique to tune frequency selective surfaces (FSS) made of patch elements is described. The methodology follows a recently developed technique where the biasing circuit of an active FSS is etched at the rear of a ...
Parker, Edward A. +7 more
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Heterostructure barrier varactor multipliers [PDF]
, 2000 The Heterostructure Barrier Varactor (HBV) diode and its application in frequency multipliers is reviewed. Different material systems and HBV models are described.
Dillner, Lars +4 more
core +2 more sources
, 2018 A novel reconfigurable equal to unequal Wilkinson power divider is presented. The proposed power divider adopts coupled microstrip line technique to implement a high impedance section to have unequal output power ratio. A varactor diode is placed between
Ali, A. H. +6 more
core +4 more sources
Planar Hexagonal Antenna with Dual Reconfigurable Notched Bands for Wireless Communication Devices [PDF]
Radioengineering, 2021 In this paper, a planar hexagonal antenna with dual tunable notched band using varactor diodes is presented. The designed antenna operates in the frequency range of 2 GHz to 8 GHz and is loaded by a complementary split ring resonator (CSRR) to achieve ...
H. Ayadi +3 more
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