Design of a multiband antenna for satellite communications on the move

Author

Targonski, Stephen D.

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

Volume

3

fYear

2004

fDate

20-25 June 2004

Firstpage

3011

Abstract

The trend for military multiband satellite terminals is shifting away from large ground stations to small, mobile terminals that can operate on the move. The multiband antenna described in this paper extends operation to the 20/30/44 GHz bands. The main reflector is 16 inches in diameter and is of the axially displaced elliptical (ADE) type. The feed is supported by a rigid aluminum housing, which aids in achieving a high mechanical resonance frequency for the overall structure. This is important for implementing a high rate mechanical tracking loop. The subreflector is attached to the aluminum feed support using a "feedome" comprised of ROHACELL 110WF foam.

Keywords

aluminium; microwave antennas; military communication; millimetre wave antennas; mobile satellite communication; multifrequency antennas; reflector antenna feeds; 20 GHz; 30 GHz; 44 GHz; ADE type; ROHACELL 110WF foam; axially displaced elliptical type; feed; feedome; high rate mechanical tracking loop; mechanical resonance frequency; military terminals; mobile terminals; multiband antenna; rigid aluminum housing; satellite communications; subreflector; Aluminum; Antenna feeds; Apertures; Coaxial components; Dielectrics; Frequency; Mobile communication; Polarization; Satellite antennas; Satellite communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1332012

Filename

1332012