Results 211 to 220 of about 13,000 (260)
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Impedance Networks and Their Matching
2017Impedance networks matching involves input impedance matching, output impedance matching, and load phase matching, which should be considered together as designing an impedance networks converter.
Guidong Zhang, Bo Zhang, Zhong Li
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Tunable impedance matching network
2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, 2007This work presents a RF tunable impedance matching circuit. It uses a quarter-wavelength (lambda/4) transmission line loaded by a combination of switches, capacitors and inductors. With MEMS-based switches and inductors, the simulation results show that this circuit is capable of correction load reflection coefficients of up 0.5 to better than 0.38 ...
Karolinne Brito, Robson Nunes de Lima
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Variability Analysis of T Network Impedance Matching
Applied Mechanics and Materials, 2013Harmonic rejection ability and reflection coefficient are the most important factors in the design of impedance matching network. However, stability of impedance matching should be taken into account in applications existing load impedance variation and component deviation due to tolerance and process variation. This paper investigates variability of T
Jian Wen Tan +3 more
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A concurrent dualband distributed impedance-matching network
Proceedings of the 24th symposium on Integrated circuits and systems design, 2011In a number of applications, it is necessary a network which could provide well-defined impedance values at different frequencies, that is a multiband impedance matching network. In this paper, we present a novel approach for dual-band impedance matching network design using multiresonant circuits.
Fabricio G. S. Silva +3 more
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ANTENNA IMPEDANCE MATCHING WITH NEURAL NETWORKS
International Journal of Neural Systems, 2005Impedance matching between transmission lines and antennas is an important and fundamental concept in electromagnetic theory. One definition of antenna impedance is the resistance and reactance seen at the antenna terminals or the ratio of electric to magnetic fields at the input.
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Design method for impedance matching networks
IEE Proceedings - Circuits, Devices and Systems, 1996Summary: The design of basic passive LC networks with particular attention to the ubiquitous \(\Pi\) network, is studied for conjugate matching any two impedances and meeting a specified loaded quality factor \(Q_0\). Algebraic design formulae are analytically demonstrated, which prove extremely simple.
Sun, Y., Fidler, J. K.
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2019
This chapter discusses mainly impedance matching circuits that are used to match two different terminations. Among the several impedance matching techniques, the available implementation technology is what usually determines the possible matching technique that can be used.
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This chapter discusses mainly impedance matching circuits that are used to match two different terminations. Among the several impedance matching techniques, the available implementation technology is what usually determines the possible matching technique that can be used.
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Design software for impedance matching networks
7th International Conference on High Frequency Radio Systems and Techniques, 1997Impedance matching networks are used extensively in radio transmission and receiving systems. A problem in designing pi-networks is that it is difficult to predict the impedance region of the pi-network given a set of practical network component values or ranges, and operating frequency range.
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Reconfigurable Impedance Matching Networks With Controllable Phase Shift
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018Two kinds of reconfigurable impedance matching networks with controllable phase shift are proposed. The reconfigurable networks can match different loads with desired phase shift at center frequency and no extra phase shifter is needed. The two networks are realized by using varactor diodes and switches, respectively.
Tianyu Zhang +3 more
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Adaptive Impedance-Matching Techniques for ControllingLNetworks
IEEE Transactions on Circuits and Systems I: Regular Papers, 2010The link quality of mobile phones suffers from antenna mismatch due to fluctuating body effects. Techniques for adaptive control of impedance-matching L networks are presented, which provide automatic compensation of antenna mismatch. To secure reliable convergence, a cascade of two control loops is proposed for independent control of the real and ...
Bezooijen, van, A. +4 more
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