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]
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]
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
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
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
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
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
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]
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]
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
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