Results 31 to 40 of about 925 (148)
Frequency Agile Radial-Shaped Varactor-Loaded Reflectarray Cell [PDF]
Radioengineering, 2016 An equivalent circuit approach is adopted in this paper to analyze a novel varactor loaded phasing line, specifically designed to improve the frequency agility features of reconfigurable aperture-coupled reflectarray cell, through the use of a couple of ...
F. Venneri +4 more
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Mokslas: Lietuvos Ateitis, 2014 In this paper, two LC Voltage-Controlled Oscillators (LC-LC-VCO1 and LC-VCO2) are designed using TSMC 65 nm LP/MS/RF CMOS technology. Two arrays, one of which is a 6-bit capacitor array and the other – an array of MOS varactors, provide a wide LC-VCO ...
Vytautas Mačaitis, Vaidotas Barzdėnas
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Harmonic Generation by Nondegenerate P-N Junction Varactor Diodes
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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A Tunable Dual-Band Bandpass-to-Bandstop Filter Using p-i-n Diodes and Varactors
IEEE Access, 2018 In this paper, a tunable dual-band bandpass-to-bandstop filter and its analysis are proposed. The bandpass-to-bandstop transformation could be obtained by changing the state of the p-i-n diode.
Fu-Chang Chen, Run-Shuo Li, Ji-Peng Chen
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Implementation of Reconfigurable, Planar Meander Antenna for WLAN Applications
Journal of High-Frequency Communication Technologies, 2023 This paper presents the implementation of Reconfigurable, Planar Meander Antenna operates at 2.45 GHz and 5.12 GHz for WLAN applications. In the proposed work the planar meander antenna is designed using FR4 substrate. In the meander antenna the varactor
Bhuvaneswari B +3 more
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Parametric Conversion Using Custom MOS Varactors
EURASIP Journal on Wireless Communications and Networking, 2006 The possible role of customized MOS varactors in amplification, mixing, and frequency control of future millimeter wave CMOS RFICs is outlined. First, the parametric conversion concept is revisited and discussed in terms of modern RF communications ...
Iniewski Krzysztof (Kris) +3 more
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Slotted Printed Monopole UWB Antennas with Tunable Rejection Bands for WLAN/WiMAX and X-Band Coexistence [PDF]
Radioengineering, 2018 Four versions of the compact hexagonal-shaped monopole printed antennas for UWB applications are presented. The first proposed antenna has an impedance bandwidth of 127.48 % (3.1 GHz to 14 GHz), which satisfies the bandwidth for ultra-wideband ...
I. Elfergani +4 more
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Enhancing parameters of silicon varactors using laser gettering
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018 The authors investigate how and why defects influence the inverse characteristics of varactors. The paper presents experimental results on the effect laser gettering has on the electrical parameters of varactors.
I. M. Vikulin +5 more
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Stability of varactor circuits
Electronics Letters, 1994 Chaotic instability of a varactor circuit with a quasiperiodic excitation is studied. It is shown that, compared to single frequency forcing, a quasiperiodic input, such as an amplitude modulated signal, causes a considerable drop in the threshold for chaotic onset. Analytical conditions for chaos to arise are also obtained.
Vavriv D.M., Oksasoglu A.
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Varactor-tuned substrate integrated evanescent filter [PDF]
2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC), 2015 Evanescent mode waveguides allow for more compact microwave component design in comparison to the traditional fundamental mode waveguide technology. Evanescent waveguides can be integrated into a dielectric substrate in order to further reduce the mass and volume. Unfortunately, traditional realization methods used in the standard evanescent waveguides
Zhurbenko, Vitaliy +2 more
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