Ziqiang Tong, Andreas Stelzer, Wolfgang Menzel,
"Improved Expressions for Calculating the Impedance of Differential Feed Rectangular Microstrip Patch Antennas"
, in Microwave and Wireless Components Letters, IEEE, Vol. 22, Nummer 9, Seite(n) 441 -443, 2012, ISSN: 1531-1309
Improved Expressions for Calculating the Impedance of Differential Feed Rectangular Microstrip Patch Antennas
Sprache des Titels:
This letter presents an analysis of the impedances of differential feed microstrip rectangular patch antennas. It is shown that the impedance of a differential feed antenna exhibits cosine squared behavior over the feed distance. We present improved expressions for calculating the impedance match feed positions of a differential feed rectangular microstrip patch antenna with given dimensions, on the base of which we designed two antenna prototypes. Both simulation and measurement results match our theoretical prediction.