Low loss, flexible, lightweight corporate RF feed system for SAR antenna application
Abstract
Mechanical and electrical efficiency constraints imposed by the SEASAT-A synthetic aperture radar antenna posed difficult design problems. After consideration of available standard cable and waveguide systems, it was determined that an optimum design could be obtained from a suspended substrate RF feed system. Size and mechanical flexibility constraints forced the design of a flexible, suspended substrate section capable of 180-degree flexure. Original design goal for insertion loss over power division was 1 db; measured results indicated 0.6 db maximum across the band. Multipactor testing of system components indicated system breakdown capability in excess of 4 kW compared to a specification input maximum of 1500 W.
- Publication:
-
Synthetic Aperture Radar Technology Conference
- Pub Date:
- 1978
- Bibcode:
- 1978sart.confR....S
- Keywords:
-
- Antenna Design;
- Feed Systems;
- Radar Antennas;
- Synthetic Aperture Radar;
- Flexibility;
- Insertion Loss;
- Radio Frequencies;
- Satellite-Borne Radar;
- Seasat 1;
- Communications and Radar