Multi-layer spatial angular filter with air gap tuner to suppress the grating lobes of microstrip patch arrays

Author

Youngju Lee ; Sung Hun Jeong ; Wee Sang Park ; Jae Seung Yun ; Soon Ik Jeon

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., South Korea

Volume

2

fYear

2002

fDate

2-7 June 2002

Firstpage

1329

Abstract

In this paper, we propose a multi-layer spatial angular filter containing periodically high and low permittivity dielectric layers and air gap tuners to suppress the grating lobes of microstrip patch antennas. When the filter is applied to a 16/spl times/16 phased array with many grating lobes due to the 2.8 /spl lambda/ spacing between adjacent phase shifters, we show that the grating lobes, which induce interference among satellites, are completely eliminated outside the /spl plusmn/30/spl deg/ range.

Keywords

antenna accessories; microstrip antenna arrays; microwave filters; passive filters; permittivity; satellite antennas; scanning antennas; tuning; air gap tuners; grating lobes suppression; limited scan array antenna; microstrip patch antennas; multilayer spatial angular filter; periodically high/low permittivity dielectric layers; phased array; satellite antenna; Air cleaners; Dielectrics; Gratings; Microstrip antenna arrays; Microstrip antennas; Microstrip filters; Patch antennas; Permittivity; Phased arrays; Tuners;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2002 IEEE MTT-S International

Conference_Location

Seattle, WA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7239-5

Type

conf

DOI

10.1109/MWSYM.2002.1011914

Filename

1011914