Title :
Tuning stubs for microstrip patch antennas
Author :
du Plessis, M. ; Cloete, J.H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
fDate :
June 28 1993-July 2 1993
Abstract :
A practical method for the simultaneous tuning of both the resonant frequency and the reflection coefficient of a coaxially fed rectangular microstrip patch is described. The use of two tuning stubs allows independent adjustment of the effective patch length and the effective position of the feed point. The effective length determines the resonant frequency of the patch, while the effective position of the feed point determines the input impedance. It is demonstrated that the method allows the adjustment of the reflection coefficient of a patch to less than -60 dB at a frequency which is within 0.005% of specification.<>
Keywords :
electric impedance; electromagnetic wave reflection; microstrip antennas; resonance; tuning; coaxially fed rectangular microstrip patch; effective patch length; feed point; input impedance; microstrip patch antennas; reflection coefficient; resonant frequency; tuning stubs; Coaxial components; Feeds; Impedance; Microstrip antennas; Patch antennas; Reflection; Resonance; Resonant frequency; Transmission lines; Tuning;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385188
