Article,

A Historical Note on Impedance-Matching Limitations Antenna Designer's Notebook

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IEEE Antennas Propag. Mag., 55 (4): 163-164 (August 2013)
DOI: 10.1109/MAP.2013.6645159

Abstract

In Chu's classic 1948 paper, he presented results that related the theoretical lower bound on Q to the antenna's size for an electrically small antenna. He also presented results that related the theoretical upper bound on the impedance-matching bandwidth, the tolerable reflection magnitude, and the antenna's size. These latter results, which have not been fully appreciated, are highlighted in this concise article.

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