Performance enhancement of antennas using PBG structures

Author

Jiyoung Seo ; Bomson Lee

Author_Institution

Dept. of Radio Eng., KyungHee Univ., Suwon, South Korea

Volume

4

fYear

2003

fDate

22-27 June 2003

Firstpage

859

Abstract

Various kinds of EM simulations are performed to investigate the stopband characteristics of PBG structures and to verify their usefulness for performance enhancement of antennas. The designed PBG structure at 18 GHz is shown to increase a microstrip antenna gain by 2.6 dB in the E-plane, and to enhance isolation between two patch antennas by 7 dB. The same PBG structure is found to behave as a PMC surface (reflection coefficient=1), thus making a horizontal monopole antenna possible. The designed PBG structure (or high impedance surface) may be used to increase isolation of mobile communication repeater antennas.

Keywords

UHF antennas; antenna theory; electromagnetic field theory; microstrip antennas; microwave photonics; mobile antennas; monopole antennas; photonic band gap; radio repeaters; 1.8 GHz; E-plane microstrip antenna gain; EM simulations; PBG structures; PMC surface; antenna isolation; antenna performance enhancement; high impedance surface; horizontal monopole antenna; mobile communication repeater antennas; patch antennas; reflection coefficient; stopband characteristics; Equations; Frequency; Microstrip antennas; Photonic band gap; Probes; Rough surfaces; Surface impedance; Surface roughness; Surface waves; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1220407

Filename

1220407