Results 11 to 20 of about 4,412,465 (239)
Delay-line stabilized microwave oscillator with frequency control [PDF]
, 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
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Sensors, 2022 This paper presents the coupling effects analysis and suppression of a highly integrated receiver front-end MMIC for a passive millimeter-wave imager system.
Xi Chen +4 more
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A VHF Circularly Polarized Turnstile Antenna with Balun for Meteor Radar
Remote Sensing, 2023 This paper presents a circularly polarized turnstile antenna for a meteor radar system. The antenna employs a pair of turnstile radiators, a 1:2 power divider and a 90° phase shifter.
Wei Qiao +4 more
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Generalized Concept and MATLAB Code for Modeling and Analyzing Wideband 90° Stub-Loaded Phase Shifters with Simulation and Experimental Verifications [PDF]
, 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
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A Graphene Field-Effect Transistor Based Analogue Phase Shifter for High-Frequency Applications
IEEE Access, 2020 We present a graphene-based phase shifter for radio-frequency (RF) phase-array applications. The core of the designed phase-shifting system consists of a graphene field-effect transistor (GFET) used in a common source amplifier configuration.
Alberto Medina-Rull +7 more
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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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Large Bandwidth Photonic Microwave Image Rejection Mixer With High Conversion Efficiency
IEEE Photonics Journal, 2017 A photonic microwave image rejection mixer (IRM) with large operating frequency range and high conversion efficiency is presented in this paper. The scheme is achieved by using a photonic microwave phase shifter, which is based on a polarization-division
Wu Zhang +5 more
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Scanned microstrip arrays using simple integrated ferrite phase shifters [PDF]
, 2000 A phase-steered microstrip antenna array is presented, suitable for application as a mobile vehicle satellite terminal. Phase shifters are implemented on a hybrid dielectric-ferrite substrate, and use is made of the phase transition near the cut-off ...
Langley, Richard J. +2 more
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Compact Two-position Phase Shifter [PDF]
, 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.
Letavin, D. A.
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Jurnal ElkomikaABSTRAK IQ Mixer adalah komponen yang penting pada subsistem RF Synthtetic Aperture Radar (SAR) karena berperan untuk melakukan proses Single Side Band (SSB) modulation antara sinyal qudrature base chirp (IF) dengan sinyal carrier (LO), sehingga mampu ...
ABDURRASYID RUHIYAT +2 more
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