Results 261 to 270 of about 1,267,292 (315)
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Electrical Impedance Matching Between Piezoelectric Transducer and Power Amplifier
IEEE Sensors Journal, 2020Electrical impedance matching network (EIMN) is important for the piezoelectric transducer to transmit high-power acoustic signal over a wide bandwidth.
Hanyun Zhou, S. H. Huang, Wei Li
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A Wideband Phased Array With Broad Scanning Range and Wide-Angle Impedance Matching
IEEE Transactions on Antennas and Propagation, 2020For wide-angle scanning phased arrays, the efficiency of active elements is deteriorated with the increase of mutual impedance. This article demonstrates an effective strategy to control the mutual impedance among array elements by canceling the major ...
Fu-Long Jin +4 more
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A Novel Miniature Dual-Band Impedance Matching Network for Frequency-Dependent Complex Impedances
IEEE transactions on microwave theory and techniques, 2020In this article, a novel dual-band impedance matching network capable of providing impedance matching between frequency-dependent complex impedances at two frequencies is reported.
Yo-Shen Lin, Chun-Hao Wei
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Impedance Matching (Correspondence)
IRE Transactions on Microwave Theory and Techniques, 1955Matching an impedance to a transmission line by the use of a cascaded section of line is a well-known process. However, the range of terminating impedance that can be matched by this method, I believe, is not so well-known. Consider a lossless line of characteristic impedance R/sub0/ to which is to be matched an arbitrary impedance /bar Z/ = R + jX by ...
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Determination of the Impedance Matching Domain of Impedance Matching Networks
IEEE Transactions on Circuits and Systems I: Regular Papers, 2004This paper investigates the impedance boundary of impedance matching networks analytically, graphically representing the resultant impedance matching domains. A set of explicit equations is derived to allow the rapid development of the impedance boundary of such networks.
M. Thompson, J.K. Fidler
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IEEE transactions on industrial electronics (1982. Print), 2019
In a wireless power transfer (WPT) system via coupled magnetic resonances, the power transfer efficiency (PTE) drastically decreases with the transfer distance or the load changing. In this paper, the causes of efficiency degradation are analyzed, and an
Yang Li +5 more
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In a wireless power transfer (WPT) system via coupled magnetic resonances, the power transfer efficiency (PTE) drastically decreases with the transfer distance or the load changing. In this paper, the causes of efficiency degradation are analyzed, and an
Yang Li +5 more
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An Impedance Matching Method for LC Passive Wireless Sensors
IEEE Sensors Journal, 2020This paper presents an impedance matching method for increasing the readout distance of an inductor-capacitor (LC) passive wireless sensor. When the impedance of the LC sensor system is equal to that of the measurement system, there is no reflection ...
Ming-Zhu Xie +3 more
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Compact High-Performance Lens Antenna Based on Impedance-Matching Gradient-Index Metamaterials
IEEE Transactions on Antennas and Propagation, 2019A planar wavefront transformation lens based on gradient-index metamaterials is proposed. The designed lens is composed of isotropic and inhomogeneous metamaterials and can reach impedance matching with free space.
N. Zhang +4 more
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