Title :
Analysis of a two-port aperture-coupled microstrip antenna
Author :
Wen-Jen Tseng ; Shyh-Jong Chung
Author_Institution :
Dept. of Commun. Eng., Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A two-port microstrip antenna is investigated by the method of moment. The antenna is a two-layer structure. The field coming from one microstrip line on the circuit layer is fed into the patch through an aperture on the ground plane. Part of the field is then coupled back to a second microstrip line through another aperture on the same ground. This configuration serves not only as a radiator but also as a feedback resonator, which is useful in designing an active antenna with a broad injection-locking bandwidth. Numerical results together with some measurements are illustrated and discussed.
Keywords :
S-parameters; active antennas; feedback oscillators; injection locked oscillators; integral equations; method of moments; microstrip antennas; microstrip lines; microstrip resonators; two-port networks; active antenna design; aperture; broad injection-locking bandwidth; circuit layer; feedback oscillator; feedback resonator; ground plane; integral equations; measurements; method of moment; microstrip line; patch; radiator; scattering parameters; two-layer structure; two-port aperture-coupled microstrip antenna; Antenna feeds; Aperture antennas; Bandwidth; Circuits; Feedback; Injection-locked oscillators; Loaded antennas; Microstrip antennas; Moment methods; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631621
