Results 11 to 20 of about 73,972 (294)
Antenna Impedance Matching Using Deep Learning
Sensors, 2021 We propose a deep neural network (DNN) to determine the matching circuit parameters for antenna impedance matching. The DNN determines the element values of the matching circuit without requiring a mathematical description of matching methods, and it ...
Jae Hee Kim, Jinkyu Bang
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Energies, 2022 Circuit theory and nonlinear dynamics are instrumental to design efficient energy harvesters for ambient mechanical vibrations. In this work, we show that an impedance matching networks can be designed that maximizes the harvested power, and improves the
Michele Bonnin +2 more
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Optimum power transfer in RF front end systems using adaptive impedance matching technique
Scientific Reports, 2021 Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment.
Mohammad Alibakhshikenari +9 more
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Compact Load Network Having a Controlled Electrical Length for Doherty Power Amplifier
IEEE Access, 2022 The load network of the carrier amplifier for the conventional Doherty power amplifier (DPA) consists of an impedance matching circuit, an offset line, and a $\lambda $ /4 transmission line (TL), so that the overall electrical length of the network can ...
Kuhyeon Kwon +12 more
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Impedance Matching Network [PDF]
, 2022 <p> In this article, four different matching network will be introduce and their value in network will be given by hand calculating and computer analysis. In the first matching network we just use inductor. In the second matching network, we just use a simple LC matching network with up-converting to match a 1Ω to 50Ω.
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Analysis of equivalent impedance characteristics of a high power RF ion source driver
He jishu, 2021 BackgroundThe ion source is one of the key components of the neutral beam injection system. Radio frequency (RF) ion source has the advantages of long life time, easy maintenance and long pules operation, which make it the main alternative source for the
YANG Puqiong +7 more
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Gong-kuang zidonghua, 2019 In view of the problem that the input impedance does not match the RF internal resistance and the output power decreases due to the change of transmission distance or load in magnetic resonant coupling wireless power transmission system, an impedance ...
YUAN Shiqiang +4 more
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Adaptive impedance matching method based on magnetic resonance wireless energy transmission
Dianzi Jishu Yingyong, 2018 In order to solve the problem of low efficiency and transmission distance of multi-to-1(multi transmit(TX) coils to one receive(RX) coil)coupled magnetic resonance(CMR) wireless power transmission system, this paper presents 2-to-1(two TX Coils to one RX
Xiong Wei, Liu Xiaojing
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Bow-Tie Microstrip Antenna Design [PDF]
, 2005 In this paper, the bow-tie microstrip antennas have been designed with two different angles of 40° and 80°. An investigaton on the effect of the angle to the return loss and radiation patterns had been carried out.
Abdul Aziz, M. Z. A. +2 more
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Modeling and impedance matching for radio frequency driven plasma lamp considering cold and hot states. [PDF]
PLoS ONE, 2018 A new dual-state impedance matching scheme for a microwave driven plasma lamp using a solid-state power amplifier (SSPA) is presented. The impedance of the plasma lamp depends on the amount of input radio frequency (RF) energy, and therefore has very ...
Wonshil Kang, Hyunchul Ku
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