Results 11 to 20 of about 3,949,769 (293)

Compact Two-position Phase Shifter [PDF]

open access: yesTelfor Journal, 2022
The paper proposes and investigates the topology of a phase shifter based on a directional coupler. The dimensions of such a device are reduced by using artificial transmission lines instead of quarter-wave sections.
D. A. Letavin
doaj   +2 more sources

A Programmable Phase Shifter for Sinusoidal Signals [PDF]

open access: yesActive and Passive Electronic Components, 1998
A simple current(voltage)-controlled phase shifter is presented. The circuit uses a small number of active and passive Components. The feasibility of obtaining a temperature-insensitive phase shifter is explored.
Muhammad Taher Abuelma'atti   +1 more
doaj   +2 more sources

Delay-line stabilized microwave oscillator with frequency control [PDF]

open access: yes, 1997
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The technique whereby the frequency of an oscillator is stabilized using an external feedback network incorporating a delay-line is extended in this thesis ...
Free, Charles Edward
core   +7 more sources

Generalized Concept and MATLAB Code for Modeling and Analyzing Wideband 90° Stub-Loaded Phase Shifters with Simulation and Experimental Verifications [PDF]

open access: yes, 2023
In the design of phase shifters, the modeling equations are too complicated and require some approximations to be derived correctly by hand. In response to this problem, this paper presents a generalized concept, algorithm, and MATLAB code that provide ...
S. Abdullah, Abdulkareem   +4 more
core   +1 more source

Design and characterization of SiC varactor-based phase shifters [PDF]

open access: yes, 2012
Design and realization of two continuously tunable phase shifters for 1.4 GHz band is presented. Both circuits are based on SiC varactors, conceived to enable high-voltage, high-power operation, and suitable for application in the transmitter chain of ...
Andersson, Christer   +22 more
core   +1 more source

Compact and Low-Loss V-Band Waveguide Phase Shifter Based on Glide-Symmetric Pin Configuration

open access: yesIEEE Access, 2019
This paper presents a compact and low-loss V-band waveguide phase shifter based on glide-symmetric pin configuration. This kind of higher symmetry permits the control and improvement of the electromagnetic behavior or radiofrequency devices, as it is the
Angel Palomares-Caballero   +4 more
doaj   +1 more source

Electronically tunable graphene-based half-mode SIW phase shifter [PDF]

open access: yesAIP Advances
This paper presents a proof of concept for the first graphene-based half-mode substrate integrated waveguide (GHMSIW) phase shifter. The GHMSIW phase shifter comprises a half-mode substrate integrated waveguide (SIW) transmission line and a single stub ...
Shakir Ullah, Muhammad Yasir
doaj   +1 more source

A Compact Single-Layer Ultra-Wideband Phase Shifter Using Weakly Coupled Lines

open access: yesIEEE Access, 2019
This paper presents a novel compact single-layer ultra-wideband phase shifter using weakly coupled lines, which contains a main line and a reference line. The basic equations of this phase shifter are calculated based on the even-odd mode theory.
Qingxiang Dong   +4 more
doaj   +1 more source

SIW Butler Matrix with Modified Hybrid Coupler for Slot Antenna Array

open access: yesIEEE Access, 2016
This paper presents a substrate integrated waveguide Butler matrix with a modified hybrid coupler, operating from 28 to 32 GHz. The modified hybrid coupler is realized by using 90° hybrid coupler followed by a -45° compensating phase ...
Qing-Ling Yang   +4 more
doaj   +1 more source

Flux-tunable phase shifter for microwaves. [PDF]

open access: yesSci Rep, 2017
We introduce a magnetic-flux-tunable phase shifter for propagating microwave photons, based on three equidistant superconducting quantum interference devices (SQUIDs) on a transmission line.
Kokkoniemi R   +8 more
europepmc   +2 more sources

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