Results 51 to 60 of about 8,991 (205)

Further compactifying linear optical unitaries

APL Photonics, 2021
Quantum integrated photonics requires large-scale linear optical circuitry, and for many applications, it is desirable to have a universally programmable circuit, able to implement an arbitrary unitary transformation on a number of modes.
B. A. Bell, I. A. Walmsley
doaj   +1 more source

Design of Hybrid Beamforming System Based on Practical Circuit Parameter of 6-Bit Millimeter-Wave Phase Shifters

Micromachines, 2023
This paper addresses the design of a hybrid beamforming system considering the circuit parameter of six-bit millimeter-wave phase shifters based on the process design kit.
Mohammed A. Alqaisei, Abdel-Fattah A. Sheta, Ibrahim Elshafiey, Majid Altamimi   +3 more
doaj   +1 more source

Variable High Precision Wide D-Band Phase Shifter

IEEE Access, 2020
This paper proposes a new concept of designing compact high precision millimeter-wave wideband variable phase shifters. The phase shifter is implemented with a stacked shim with extremely short length of 0.9 mm and two waveguide flange adaptors with ...
Zhongxia Simon He, Sining An, Jinlin Liu, Cheng Jin   +3 more
doaj   +1 more source

Photonic Phase Shifter Based on Wavelength Dependence of Brillouin Frequency Shift [PDF]

, 2011
We present a novel radio-frequency (RF) photonic phase shifter based on wavelength dependence of Brillouin frequency shift. A continuous and full phase shift up to 360 degrees at 18 GHz is achieved when the wavelength of the optical carrier is scanned ...
Li W, Zhu NH, Li, W (reprint author), Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China, liwei05@semi.ac.cn, Wang LX   +3 more
core  

Three-phase ideal phase shifter using AC choppers [PDF]

, 2019
A three-phase ideal phase shifter using pulse-width modulation (PWM) AC choppers is proposed. The ideal phase shifter is made up of three single-phase PWM AC choppers and transformers for series quadrature voltage injection.
Kim, JH, Kwon, BH
core   +1 more source

A microcontroller controlled flat gain phase shifter [PDF]

, 2006
Permittivity measurement -- Phase shifter -- Phase shifter gain compensation -- Digital control of phase ...
Zhong, Zhiyong
core  

A millimetre wave phase shifter using a 40GHz hybrid mode locked laser [PDF]

, 2008
In this paper, electrical injection locking of a modelocked laser is used to create a millimetre wave phase shifter. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems.
Martin J. Cryan, Cryan, MJ, Khawaja, BAM, Bilal A. Khawaja   +3 more
core   +1 more source

Broadband planar 90 degrees loaded-stub phase shifter [PDF]

, 2020
The differential phase shifter is an interesting four-port passive microwave network composed of two separate lines, the main line and the reference line, and providing stable phase difference between the two output signals over the specified bandwidth ...
Zbitou, J.; Hassan 1st University, Marini, S. El; Hassan 1st University, Mandry, R.; Hassan 1st University, Tajmouati, A.; Hassan 1st University, Latrach, M.; Microwave Group ESEO, Errkik, A.; Hassan 1st University   +5 more
core   +2 more sources

Switched susceptance phase shifter [PDF]

, 1987
Includes bibliographical references (pages 88-89)This thesis pertains to the design of a new digital phase shifter that\ud can be used in electronically scanned antenna arrays.
Virga, Kathleen Lowe
core   +3 more sources

Audio Frequency π/2 Phase-shifter [PDF]

A method for the realization of a wideband π/2 phase-shifter for audio frequencies is presented. It is shown that the approximated transfer function of the phase-shifter can be realized in a transversal filter configuration.
ハシグチ, スミヒサ, 久保田, 一, Hashiguchi, Sumihisa, 橋口, 住久, Kubota, Hazime   +4 more
core   +1 more source