Title :
Resonant frequency of a tunable rectangular patch antenna
Author_Institution :
University of Michigan, Radiation Laboratory Department of Electrical Engineering & Computer Science, Ann Arbor, USA
Abstract :
The uniform transmission-line model is applied to determine the resonant frequency of a coaxial probe fed rectangular patch antenna tuned by a number of passive metallic posts suitably placed within the antenna´s boundary. An approximate expression is given for the resonant frequency as a function of the post location and number, and of the other characteristic parameters of the antenna. Theoretical results are compared with available measured values.
Keywords :
waveguide antennas; coaxial probe fed; passive metallic posts; resonant frequency; tunable rectangular patch antenna; uniform transmission-line model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840423
