Results 41 to 50 of about 9,744 (208)
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
doaj +1 more source
Electronics Letters, 2001 A new varactor model based on the BSIM3v3 model (Berkeley short-channel IGFET model) is presented for the first time to model the behaviour of a silicon-based metal-insulator semiconductor varactor under different bias conditions and operating frequencies.
C.Y. Su +5 more
openaire +1 more source
Advanced Materials Technologies, EarlyView.An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim +4 more
wiley +1 more source
IEEE AccessIn this paper, a novel reconfigurable linearly polarized ultrathin unit cell design for lens applications at Ka-band frequencies (26-28.75 GHz) is presented.
Zohre Pourgholamhossein +1 more
doaj +1 more source
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
doaj
Discrete breathers in a nonlinear electric line: Modeling, Computation and Experiment [PDF]
, 2011 We study experimentally and numerically the existence and stability properties of discrete breathers in a periodic nonlinear electric line. The electric line is composed of single cell nodes, containing a varactor diode and an inductor, coupled together ...
F. Palmero +7 more
core +3 more sources
Advanced Science, EarlyView.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 ...
Hao Tian Shi +8 more
wiley +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source