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Dual‐frequency double‐ring microstrip antenna with voltage/current couplings
Author(s) -
Liu JiChyun,
Chaw Cheng Chung,
Fann KangHsian,
Lu Shuh Tai
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990505)21:3<209::aid-mop15>3.0.co;2-o
Subject(s) - microstrip , microstrip antenna , microwave , patch antenna , ring (chemistry) , voltage , electrical engineering , antenna (radio) , physics , coupling (piping) , engineering , optics , optoelectronics , telecommunications , chemistry , mechanical engineering , organic chemistry
A novel 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 voltage feed line couples to the outer rings, the current coupling between these two rings is introduced. Experimental results are presented and discussed. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 209–211, 1999.