Title :
Analysis of a Proximity Coupled Patch Antenna on a Metalized Substrate
Author :
Liang, Jing ; Yang, H. Y David
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Chicago, IL
Abstract :
This paper investigates the periodic metallic loading effects on a proximity coupled microstrip patch antenna fed by a microstrip line. Specifically a mushroom-type EBG structure is investigated. When the loading elements are small and capacitive, metallic loadings have the effect of reducing patch antenna size with the same center frequency with a slight decrease in bandwidth. When the EBG structure is sufficiently large and resonates at a similar frequency as the patch antenna, the high-impedance surface effect is not seen and the bandwidth actually decreases. This result is due to the similar dimensions of patch antenna and the loading elements
Keywords :
antenna feeds; electromagnetic coupling; microstrip antennas; microstrip lines; photonic band gap; electromagnetic band gap; metalized substrate; microstrip line; mushroom-type EBG structure; periodic metallic loading effects; proximity coupled microstrip patch antenna; Antenna feeds; Bandwidth; Conductors; Dielectric substrates; Frequency; Loaded antennas; Metamaterials; Microstrip antennas; Patch antennas; Periodic structures;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711048
