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[天线]【本版文章上传示例】Analysis of planar inverted F antenna using spatial network method

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Analysis of planar inverted F antenna using spatial network method

Tsunoda, K. Taga, T.
ATR Opt. & Radio Commun. Res. Lab., Kyoto, Japan;
This paper appears in: Antennas and Propagation Society International Symposium, 1990. AP-S. 'Merging Technologies for the 90's'. Digest.
Publication Date: 7-11 May 1990
On page(s): 664 - 667 vol.2
Meeting Date: 05/07/1990 - 05/11/1990
Location: Dallas, TX
Digital Object Identifier: 10.1109/APS.1990.115197
Date Published in Issue: 2002-08-06 17:07:02.0

Abstract
It is shown that the input impedance of the PIFA (planar inverted F antenna) can be calculated using the SNM (spatial network method). The transition characteristics of the resonant frequency and the bandwidth of the PIFA are described for various values of the shape ratio and the shorted width of the planar element. The calculated results are in close agreement with measured results when the analysis area is set large enough. It has been numerically clarified that the PIFA's resonant frequency decreases with decrease of the shorted element width for various planar element size ratios L1/L2, and the relative bandwidth decreases when the shorted element width, t ..

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