An electrically-thin, two-pole, bandpass radome

Author

McKinzie, W. ; Caswell, E.

Author_Institution

Etenna Corp., Laurel, MD, USA

Volume

4

fYear

2003

fDate

22-27 June 2003

Firstpage

408

Abstract

A two-pole bandpass radome is comprised of an inductive ground plane with symmetric capacitive FSS structures equally spaced on either side. Capacitive patches in these two FSS structures are connected with the ground plane by virtue of plated through holes. Spurious modes are suppressed over a very broad frequency band between the desired passband and the parasitic resonance of the FSS patches, which can be up to an order of magnitude in ratio due to the relatively small size of the patches. Furthermore, the total radome thickness can be designed to be less than /spl lambda//sub 0//50 at the fundamental passband. An L-band example is fabricated and tested.

Keywords

antenna earths; band-pass filters; electromagnetic wave transmission; equivalent circuits; frequency selective surfaces; radomes; transmission line matrix methods; L-band; TLM full wave simulation; bandpass filter radomes; capacitive patches; dichroic subreflectors; electrically-thin radome; equivalent circuit; fundamental passband; inductive ground plane; parasitic resonance; plated through holes; standing TEM waves; symmetric capacitive FSS structures; symmetric five-layer printed circuit board; two-pole bandpass radome; Apertures; Band pass filters; Computational modeling; Couplings; Frequency selective surfaces; L-band; Magnetic resonance; Passband; Propagation losses; Transmission line matrix methods;

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.2003.1220207

Filename

1220207