Design of a broadband electrical impedance matching network for piezoelectric ultrasound transducers based on a genetic algorithm. [PDF]
Sensors (Basel), 2014 An J, Song K, Zhang S, Yang J, Cao P.
europepmc +2 more sources
On the minimum number of states for switchable matching networks [PDF]
, 2015 The impedance of an antenna changes heavily with changing EM environments, while RF power amplifiers (PAs) are optimized for driving a well-defined load impedance.
Annema, Anne-Johan +3 more
core +2 more sources
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
doaj +1 more source
Geometric Scattering in Robotic Telemanipulation [PDF]
, 2002 In this paper, we study the interconnection of two robots, which are modeled as port-controlled Hamiltonian systems through a transmission line with time delay. There will be no analysis of the time delay, but its presence justifies the use of scattering
Mashke, Bernhard +3 more
core +5 more sources
Modeling and Design of a Highly Efficient Switch-Mode RF/Microwave Power Amplifier Based-on Microstrip Bandpass Filter [PDF]
International Journal of Electronics and Telecommunications, 2022 This paper presents a broadband Switch-Mode Power Amplifier (SMPA) using a Band-Pass Filter (BPF) at the Output Matching Network (OMN). The proposed SMPA integrates a microstrip BPF as an output impedance matching network to significantly reduce the ...
Farzad Moloudi +2 more
doaj +1 more source
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
doaj +1 more source
Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]
, 2015 A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
Bashri, M. S. R. +2 more
core +6 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source