Results 21 to 30 of about 925 (148)

Linear frequency tuning in an LC-resonant system using a C–V response controllable MEMS varactor

Micro and Nano Systems Letters, 2017
This paper proposes a device level solution to achieve linear frequency tuning with respect to a tuning voltage (V tune ) sweep in an inductor (L)–capacitor (C) resonant system. Since the linearity of the resonant frequency vs.
Chang-Hoon Han, Yong-Hoon Yoon, Seung-Deok Ko, Min-Ho Seo, Jun-Bo Yoon   +4 more
doaj   +1 more source

Dual-Layer Beamscanning Reflectarray Antenna Operating at Ku-Band

Journal of High-Frequency Communication Technologies, 2023
This paper presents a beam scanning electronically reconfigurable reflectarray configuration for Ku-band applications using a single varactor diode.  A 15×15 center-fed reconfigurable reflectarray antenna is designed consisting of 225 octagonal shaped ...
Vidhyashree Suresh, Aishika Bhattacharjee, Kirubaveni Savarimuthu   +2 more
doaj   +1 more source

Compact Reconfigurable Band Notched UWB Cylindrical Dielectric Resonator Antenna Using Single Varactor Diode

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
doaj   +1 more source

Pattern Reconfigurable Dual-Polarized Dipole Antenna With Staggered Parasitic Elements

IEEE Access, 2022
This paper presents a pattern reconfigurable dual-polarized dipole antenna with staggered parasitic elements operating in 3.5 GHz band. The proposed antenna is designed by assembling two linearly polarized antennas to be orthogonally polarized, and each ...
Ju-Ik Oh, Jeong-Wook Kim, Sang Hyuck Han, Sol Kim, Jong-Won Yu, In-June Hwang   +5 more
doaj   +1 more source

Reconfigurable Mach–Zehnder interferometer for dynamic modulations of spoof surface plasmon polaritons

Nanophotonics, 2021
We propose an ultrathin reconfigurable Mach–Zehnder interferometer (MZI) for realizing dynamic frequency and amplitude modulations of spoof surface plasmon (SSP) signal.
Cui Wen Yi, Zhang Jingjing, Gao Xinxin, Cui Tie Jun   +3 more
doaj   +1 more source

A K-Band VCO With AC-Shorted Transformer Tank for 76–81 GHz FMCW Radars

IEEE Access
This paper presents an 18.5–20.6 GHz voltage-controlled oscillator (VCO) that achieves a wide tuning range and low phase noise, suitable for frequency-modulated continuous-wave (FMCW) radar systems.
Weihu Wang, Brian A. Floyd
doaj   +1 more source

Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna

IET Microwaves, Antennas & Propagation, 2021
A single‐varactor frequency‐reconfigurable microstrip patch antenna is presented. The antenna comprises a symmetrical arrangement of four metallised patches coupled and interconnected via slots and metallic bars, respectively.
Mahmoud Al Ahmad, Saifudeen Kabeer, Ala Abu Sanad, Lillian J. A. Olule   +3 more
doaj   +1 more source

Anti-Series Varactor Network With Improved Linearity Performances in the Presence of Inductive and Capacitive Parasitics

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, Jean-Jacques Laurin, Nicolas G. Constantin   +2 more
doaj   +1 more source

BSIM3v3-based varactor model

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, L.P. Chen, S.J. Chang, B.M. Tseng, D.C. Lin, H.Y. Lee   +5 more
openaire   +1 more source

Experimental Characterization of a New Active Huygens’ Metasurface-Based Element for Beam Steerable Lens at Ka-Band

IEEE Access
In 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, Tayeb A. Denidni   +1 more
doaj   +1 more source