Active frequency selective surface using PIN diodes

Author

Kiani, Ghaffer I. ; Esselle, Karu P. ; Weily, Andrew R. ; Ford, Kenneth L.

Author_Institution

Macquarie Univ., Sydney

fYear

2007

fDate

9-15 June 2007

Firstpage

4525

Lastpage

4528

Abstract

A novel active frequency selective surface (FSS) is presented for 2.45 GHz applications. It consists of circular aperture elements with four PIN diodes placed orthogonal to each other on FR4 substrate. The negative dc biasing is provided with cross shaped supply lines from the reverse side of the substrate, while positive biasing is provided from the front side of printed circular structure. This active FSS design enables transmission to be switched on or off at 2.45 GHz, providing high transmission when the diodes are in OFF state, and high isolation when the diodes are ON. The design also provides very good stability to oblique TE incidence, i.e perpendicular polarisation.

Keywords

aperture antennas; frequency selective surfaces; p-i-n diodes; FR4 substrate; PIN diode; active frequency selective surface; circular aperture elements; frequency 2.45 GHz; negative dc biasing; positive biasing; Apertures; Diodes; Electromagnetic wave polarization; Equivalent circuits; Frequency response; Frequency selective surfaces; Spatial filters; Stability; Surface waves; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-0877-1

Electronic_ISBN

978-1-4244-0878-8

Type

conf

DOI

10.1109/APS.2007.4396549

Filename

4396549