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Dual-frequency double-ring microstrip antenna with voltage/current couplings

✍ Scribed by Ji-Chyun Liu; Cheng Chung Chaw; Kang-Hsian Fann; Shuh Tai Lu

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
141 KB
Volume
21
Category
Article
ISSN
0895-2477

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✦ Synopsis

A no¨el design of a double-ring microstrip antenna with dual-frequency operation is presented in this paper. The frequency ratio ( ) FR depends on the radii of the inner and outer rings. Besides the ¨oltage feed line couples to the outer rings, the current coupling between these two rings is introduced. Experimental results are presented and discussed.

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