CAD for HERMES antennas

Author

Lenormand, R. ; Blanchard, I. ; Clair, D. ; Tourneur, J. ; Bannelier, P. ; Brochard, C. ; Martinaud, J.P.

Author_Institution

Alcatel Space, Toulouse, France

fYear

1988

fDate

6-10 June 1988

Firstpage

26

Abstract

During the launch, landing and orbit phases of the proposed HERMES spacecraft, telecommand data (10 kb/s) and telemetry data (25 kb/s) are transmitted between HERMES and the ground by a relay satellite. An analysis of operational requirements resulted in the selection of four switched antennas, integrated within the plane structure, each of which may comprise several antennas. The two software packages used assess the performance of these antennas are briefly reviewed. The first package is for implementing the boundary element method (BEM). The program is executed on a DEC VAX 8600 and the linear system, whose matrix is complex, symmetrical and complete, is solved on an array processor, FPS 164/MAX. The electromagnetic characteristics (radiation patterns, surface currents, etc.) of the antenna are displayed graphically. The other package, SARGASSES, is an interactive simulator for antennas on structures such as aircraft or spacecraft.<>

Keywords

CAD; artificial satellites; boundary-value problems; satellite antennas; satellite relay systems; telecommunications computing; 10 kbit/s; 25 kbit/s; DEC VAX 8600; FPS 164/MAX; HERMES antennas; HERMES spacecraft; SARGASSES; aircraft; array processor; boundary element method; electromagnetic characteristics; interactive simulator; linear system; radiation patterns; relay satellite; software packages; spacecraft; surface currents; switched antennas; telecommand data; telemetry data; Artificial satellites; Boundary element methods; Linear systems; Packaging; Relays; Software packages; Space vehicles; Symmetric matrices; Telecommunication switching; Telemetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1988. AP-S. Digest

Conference_Location

Syracuse, NY, USA

Type

conf

DOI

10.1109/APS.1988.93980

Filename

93980