Asymmetric ridge waveguide slot antenna using high-impedance surface

Author

Gao, Qiang

Author_Institution

Frequency Manage. Center, Commanding Commun. Acad., Wuhan, China

fYear

2010

fDate

8-11 May 2010

Firstpage

172

Lastpage

175

Abstract

High-impedance surface (HIS) is a kind of electromagnetic bandgap (EBG) structure utilized as a ground plane for asymmetric ridge waveguide slot antenna in order to improve its radiation characteristics. As compared to a solid metal ground plane, the results suggest that a high-impedance ground plane (HIGP) can significantly improve the pattern of the slot antenna. The ripples in the E-plane pattern of the slot antenna with a metal ground plane are found to vanish, the back lobes are reduced, and the antenna gains are increased.

Keywords

antenna radiation patterns; photonic band gap; ridge waveguides; slot antennas; E-plane pattern; EBG structure; antenna lobes; antenna radiation characteristics; asymmetric ridge waveguide slot antenna; electromagnetic bandgap structure; high-impedance ground plane; high-impedance surface; metal ground plane; Antenna radiation patterns; Antennas and propagation; Arrayed waveguide gratings; Electromagnetic waveguides; Periodic structures; Planar waveguides; Rectangular waveguides; Resonance; Slot antennas; Surface waves; High-impedance ground plane (HIGP); Waveguide slot antenna; radiation pattern;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5525257

Filename

5525257