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Circularly polarized square microstrip antenna using an inclined asymmetric coupling slot
Author(s) -
Huang ChihYu
Publication year - 2000
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 - 10.1002/1098-2760(20010105)28:1<43::aid-mop12>3.0.co;2-d
Subject(s) - microstrip antenna , patch antenna , slot antenna , ground plane , optics , microstrip , radiation pattern , physics , antenna measurement , coaxial antenna , antenna efficiency , microwave , optoelectronics , electrical engineering , antenna (radio) , engineering , telecommunications
The design of the circular polarization (CP) radiation of a slot‐coupled compact square microstrip antenna is described. The wider bandwidth CP radiation is achieved by using a novel asymmetric coupling slot in the ground plane of the microstrip feed line. Also, the reduction in antenna size is obtained by embedding a cross slot in the patch. Results show that the proposed antenna can have a CP bandwidth ∼74% higher and an antenna size ∼22% smaller, as compared to the regular‐size CP design, using a nearly square patch with a simple inclined coupling slot at a fixed operating frequency. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 43–45, 2001.