Results 21 to 30 of about 36,496 (304)
Control Scheme of Phase-Shifter for Photon Energy Scan
Photonics, 2022 Variable gap undulator widely used in X-ray free-electron laser (XFEL) enables the photon energy scan by changing its gap. A phase-shifter should be incorporated to compensate for the phase mismatch between the electron bunches and X-ray pulses arising ...
Gyujin Kim +8 more
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A Fixed Miniaturization 90° Phase Shifter for VHF-Band High-Power Applications
IEEE Access, 2019 This paper presents a novel miniaturization 90° phase shifter using parallel coupled inductors and capacitors. The size reduction is achieved by replacing the quarter-wavelength transmission lines in a conventional fixed 90 degrees phase shifter ...
Naibo Zhang +3 more
doaj +1 more source
To make a nanomechanical Schr\"{o}dinger-cat mew [PDF]
, 2011 By an explicite calculation of Michelson interferometric output intensities in the optomechanical scheme proposed by Marshall et al. (2003), an oscillatory factor is obtained that may go down to zero just at the time a visibility revival ought to be ...
+4 more
core +2 more sources
Simulation and Fabrication of Broadband Tunable Phase Shifter Based on Transmission Line Metamaterial [PDF]
Radioengineering, 2019 This paper presents a kind of broadband, low-loss tunable phase shifter based on transmission line metamaterial. An inherent high-pass backward-wave response property of a left-handed metamaterial based on coplanar waveguide (CPW) transmission line was ...
S. Sheng, H. X. Chen, J. Wen, H. R. Liu
doaj
Indian Journal of Science and Technology, 2015 Objective: RF MEMS has emerged as a technology with immense potential for wireless communication and defence applications. In this work, a 5 bit RF MEMS switched line phase shifter is presented using cantilever switch achieving low actuation voltage.
Snehanshu Sengupta, K. Usha Kiran
openaire +1 more source
Ripple Suppression in Broadband Microwave Photonic Phase Shifter Frequency Response
Applied Sciences, 2018 This paper presents a detailed investigation on the cause of ripples in the frequency response of a microwave photonic phase shifter implemented using a 90° hybrid coupler.
Weicheng Xia +6 more
doaj +1 more source
Applied SciencesThis paper presents a co-design approach for a microwave amplifier–phase shifter that integrates an arbitrary termination impedance reflection-type phase shifter as the input matching network of a microwave transistor.
Palaystint Thorng +3 more
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Intensity optimization of x-ray free-electron laser by using phase shifters
Physical Review Accelerators and Beams, 2020 This paper presents a method that uses a gap scan of the phase shifter to optimize the intensity of a free-electron laser (FEL) by matching its phase with that of the electron beam.
Chi Hyun Shim +5 more
doaj +1 more source
Broadband electronically tunable reflectionbased phase shifter for active-steering microwave reflectarray systems in Ku-band [PDF]
, 2016 This document provides the design of an electronically reconfigurable microwave phase shifter for reflectarray systems. The phase shifter is based on a hybrid coupler with reflective circuits in three ports.
Fernández González, José Manuel +4 more
core +2 more sources
Vertical-cavity surface-emitting phase shifter
Optics Express, 2023 This study proposes a novel technique for a 2D beam steering system using hybrid plasmonic phase shifters with a cylindrical configuration in a 2D periodic array suitable for LIDAR applications. A nanoscale VCSEP design facilitates a sub-wavelength spacing between individual phase shifters, yielding an expanded field of view and ...
Dhaifallah Almutairi +4 more
openaire +2 more sources