Results 21 to 30 of about 6,760 (299)
Applied Sciences, 2023 A linear phased array antenna excited with a novel composite right/left-handed (CRLH) phase shifters structure is proposed. The phase of the conventional CRLH transmission line is controlled with magnetically aligned micron-sized particles embedded ...
Muhammad Ayaz, Irfan Ullah
doaj +1 more source
Application of Coherently Radiating Periodic Structures for Feeding Subarrays in Limited-Scan Arrays
IEEE Open Journal of Antennas and Propagation, 2023 This paper presents a new design technique to improve the reduction of phase shifters using sub-arrays and CORPS (coherently radiating periodic structures) technology. The CORPS network generates the values of cophasal excitation with reduced input ports.
Elizvan Juarez +4 more
doaj +1 more source
Alexandria Engineering Journal, 2022 A 4 × 4 Butler Matrix (BM) without phase shifter is proposed to provide bandwidth enhancement and size reduction by removing a conventional 0 dB/90° crossover, two 0° phase shifters and two 45° phase shifters. Two proposed 3 dB/45° patch couplers replace
Nazleen Syahira Mohd Suhaimi +3 more
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Toward Higher Integration Density in Femtosecond-Laser-Written Programmable Photonic Circuits
Micromachines, 2022 Programmability in femtosecond-laser-written integrated circuits is commonly achieved with the implementation of thermal phase shifters. Recent work has shown how such phase shifters display significantly reduced power dissipation and thermal crosstalk ...
Riccardo Albiero +5 more
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A Frequency Independent Phase Shifter
Acoustics, 2023 A frequency-independent phase shift is determined such that two phase shifted versions of a signal can be summed whereby the resulting amplitude spectrum is unchanged. A phase difference between two signals is thus defined which remains constant for all frequencies within a given range.
Máté Csanád +2 more
openaire +2 more sources
D-Band digital phase shifters for phased-array applications [PDF]
, 2022 S.205-208This paper presents three different D-Band (110 - 170GHz) phase shifters for high-bandwidth communication and radar applications. The proposed phase shifters offer phase shifts of 180°, 90° and 45° and show only very little amplitudeand phase ...
Müller, D. +7 more
core +1 more source
Verification of Phase Shifter Measurements of a Reflective Array Antenna
Известия высших учебных заведений России: Радиоэлектроника, 2021 Introduction. Large-size phased antenna arrays (PAA) frequently incorporate optical excitation schemes, whose main elements include the feed and the reflective aperture. In turn, the reflective aperture consists of several tens of thousands of radiators
M. D. Parnes
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Adaptive Beamforming With Continuous/Discrete Phase Shifters via Convex Relaxation
IEEE Open Journal of Antennas and Propagation, 2022 Adaptive antenna array employing phase shifters only can reduce the hardware cost and power consumption, but the related optimization is well understood to be difficult to solve.
Yinman Lee
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Design and characterization of SiC varactor-based phase shifters [PDF]
, 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
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Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads [PDF]
Известия Саратовского университета. Новая серия: Физика, 2021 Background and Objectives: Fixed phase shifters on the transmission line are passive devices that provide a constant phase shift between the signals to the outputs of the reference and phase-shifting channels.
Korchagin, Alexey I. +5 more
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