Title :
Novel compact multi-frequency microstrip patch antenna
Author :
Yunbo Pang ; Baoxin Gao
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
This paper presents a novel compact microstrip patch antenna for three-band application, consisting of a main straight arm and four spiral branches. This antenna is characterized by the very small size of only 0.191 /spl lambda/g by 0 212 /spl lambda/g at the first resonance frequency of 5.34 GHz, which represents a size reduction of 60% compared to a conventional rectangular microstrip patch antenna. The results indicate that the return loss is better than 10 dB and that the gain is about 6 dB in each band.
Keywords :
microstrip antennas; multifrequency antennas; spiral antennas; 10 dB; 5.343 GHz; 6 dB; 7.711 GHz; 8.80 GHz; compact patch antenna; multifrequency microstrip patch antenna; spiral branches; three-band antenna; Antenna feeds; Current density; Dielectric resonator antennas; Helical antennas; Impedance matching; Microstrip antennas; Patch antennas; Resonance; Resonant frequency; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220147
