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Impedance matching of microstrip patch antenna arrays over wide scan angles
Author(s) -
Rengarajan Sembiam R.
Publication year - 1998
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(199811)19:4<252::aid-mop2>3.0.co;2-j
Subject(s) - microstrip , microstrip antenna , impedance matching , antenna (radio) , patch antenna , coupling (piping) , electrical impedance , reflection coefficient , matching (statistics) , acoustics , plane (geometry) , input impedance , optics , microwave , electronic engineering , engineering , physics , geometry , electrical engineering , telecommunications , mathematics , mechanical engineering , statistics
The concept of impedance matching of an infinite microstrip patch array antenna over wide scan angles by means of a coupling circuit in the feed network is investigated. Computed values of input impedance as a function of scan angles were used as input to an optimization program, which minimized the reflection coefficient magnitude over a range of scan angles. The output of the program is the line lengths and coupling susceptances in the E ‐plane and H ‐plane. Preliminary studies show that it is possible to realize such coupling networks. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 252–255, 1998.