Results 11 to 20 of about 909,675 (305)

Broadband Equal-Split Directional Couplers Composed of Cascade- and Tandem-Connected Coupled-Line Sections Having Unequal Lengths

open access: yesIEEE Access, 2021
A new concept of broadband equal-split coupled-line directional couplers is proposed. The proposed couplers are based on coupled-line sections, all having the same coupling coefficient, and feature frequency characteristics similar to the ones obtained ...
Kinga Gawel   +5 more
doaj   +1 more source

Hybrid-cascade Coupled-Line Phasers for High-resolution Radio-Analog Signal Processing [PDF]

open access: yes, 2014
A hybrid-cascade (HC) coupled-line phaser configuration is presented to synthesize enhanced group delay responses for high-resolution Radio-Analog Signal Processing (R-ASP).
Caloz   +6 more
core   +3 more sources

Enhanced Bandwidth and Diversity in Real-Time Analog Signal Processing (R-ASP) using Nonuniform C-section Phasers [PDF]

open access: yes, 2016
We show that a continuously nonuniform coupled line C-section phaser, as the limiting case of the step discontinuous coupled-line multisection commensurate and non-commensurate phasers, provides enhanced bandwidth and diversity in real-time analog signal
Caloz, Christophe   +3 more
core   +1 more source

Wideband Filtering Power Divider With Ultra-Wideband Harmonic Suppression and Isolation

open access: yesIEEE Access, 2016
In this paper, a wideband filtering power divider (PD) with ultra-wideband harmonic suppression and isolation is proposed. The dual coupled-line sections are embedded to the conventional quarter-wavelength transmission lines, which helps to extend the ...
Yongle Wu   +4 more
doaj   +1 more source

Low-Noise Voltage Controlled Oscillator with Coupled Microstrip Lines of Different Lengths

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2020
Introduction. Coupled two- or three-wire microstrip lines are often used to reduce a phase noise of voltage-controlled oscillators (VCOs). Unfortunately, the phase noise was not optimized depending on the lengths of a three-wire coupled microstrip lines ...
Aleksander V. Baranov
doaj   +1 more source

A Double-Veined Leaf-Shaped Bionic Meta-Element and Array Loading Antennas for Radiation Beam Control

open access: yesIEEE Access, 2021
Based on bionics, we design and analyze the left-handed (LH) characteristics of meta-elements with leaf-shaped structure. The double negative (DNG) frequency band of the initial leaf-shaped LH structure is 5.77-6.17 GHz with a fractional bandwidth of 6.7&
Baiqiang You   +3 more
doaj   +1 more source

Compact 3‐dB directional coupler design based on substrate integrated dual‐strip coaxial line

open access: yesIET Microwaves, Antennas & Propagation, 2022
A novel compact 3‐dB directional coupler design based on the substrate integrated dual‐strip coaxial line (SIDSCL) is presented. The SIDSCL differs from the conventional substrate integrated coaxial line (SICL) in that the former possesses two central ...
Min‐Hua Ho   +2 more
doaj   +1 more source

A Filtering Switch Made by an Improved Coupled Microstrip Line

open access: yesApplied Sciences, 2023
In this paper, we propose a new filtering switch with excellent working performance made using an optimized coupled microstrip line. Upon analyzing the RF (radio frequency) front-end’s system structure, the switching device was simplified to a diode ...
Xiangsuo Fan   +5 more
doaj   +1 more source

Design of a Low-Cost Microstrip Directional Coupler with High Coupling for a Motion Detection Sensor [PDF]

open access: yes, 2018
A coupled-line coupler based on the asymmetric cascade connection of two coupled line sections is used to achieve a high coupling factor using low-cost material and technology in the X frequency band, and its performance is compared with a standard ...
Casula, GIOVANNI ANDREA   +4 more
core   +2 more sources

A Single-Layer Ultra-Wideband Dual-Channel Differential Phase Shifter Using Coupled Lines [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering, 2023
In this work, a broadband dual-channel differential phase shifter is developed with a small phase deviation across a wide frequency range. The design consists of two main lines for 45° and 90° phase shifts, along with a reference line.
Robab Kazemi   +2 more
doaj  

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