Results 21 to 30 of about 13,000 (260)
Dual‐band filtering power amplifier with extended passband bandwidths and wide stopband rejection
IET Microwaves, Antennas & Propagation, 2023 This article presents a dual‐band filtering power amplifier (DB‐FPA) with extended passband bandwidths and wide stopband rejection, which is helpful in reducing the number of microwave components in the dual‐band radio frequency front end, resulting in ...
Gaoya Dong +3 more
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Design of impedance matching network based on optimized real frequency algorithm
Electronics Letters, 2022 In the recent couple of decades, some multifunctional spaceborne active radars had been launched. Those radars used to be broadband radars using dipole transmitting antennas.
Bo Bai +7 more
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A High-Efficiency Wideband Power Amplifier Based on a Three-Branch Line Coupler with Open Stubs [PDF]
Journal of Electromagnetic Engineering and ScienceA high-efficiency wideband power amplifier (PA) equipped with an output filtering and matching network (OFMN) is presented in this study. Unlike conventional PAs, in which the filtering structure is often positioned after the output matching network, the
Wen Huang, Pengfei Wang, Jiang Liu
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An Impedance Matching Method Based on Optimized BP Neural Network for Vehicular Power Line System
IEEE AccessDuring the operation of the vehicular power line system, the loads are randomly connected and subsequently disconnected. This can result in an impedance mismatch of the vehicular power line system, which in turn has a significant impact on the normal ...
Renfa Song, Hanyan Li, Yongtao Li
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International Journal of Antennas and Propagation, 2023 In the paper, a wideband miniaturized impedance-transforming quadrature four-feed network with a flat output phase difference is presented and applied to the design of an active integrated GNSS antenna where no extra impedance matching circuit is needed.
Yao Wang +4 more
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Automation, 2023 Ultrasonic waves generated and received by electromagnetic acoustic transducers (EMATs) are advantageous in non-destructive testing, mainly due to the ability to operate without physical contact with the medium under test.
João Pedro T. Andrade +3 more
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Gate reflectometry of single-electron box arrays using calibrated low temperature matching networks
Scientific Reports, 2022 Sensitive dispersive readouts of single-electron devices (“gate reflectometry”) rely on one-port radio-frequency (RF) reflectometry to read out the state of the sensor.
Matthew J. Filmer +7 more
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Theory and Design of Impedance Matching Network Utilizing a Lossy On-Chip Transformer
IEEE Access, 2019 In this paper, we present a study on a transformer-based impedance matching network. We use a simplified transformer model comprising two magnetically coupled coils, which are driven by a source and terminated by a load.
Van-Son Trinh, Jung-Dong Park
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Effect of frequency modulation on impedance matching of single ferrite in ICRH antenna system
He jishu, 2022 BackgroundIon cyclotron resonance heating (ICRH) is an important auxiliary heating method in tokamak. When fast plasma phenomena such as L-H mode transitions and edge localized modes (ELM), etc., happens, a large change in the antenna coupling impedance ...
YANG Kaijian +6 more
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IEEE Access, 2022 A new interstage matching technique is presented for design of a wide-band multi-stage amplifier using commercial 60 nm GaN-on-silicon technology in the W-band.
Sunwoo Lee +4 more
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