Small earth stations at 20/30 GHz
Abstract
The mechanical and electrical constituents and characteristics of two kinds of small earth stations for the 20/30 GHz band, which were developed for many varieties of experiments using Japan's domestic communications satellite for experimental purposes, are described. Each station has an antenna having a diameter of 1.0 and 2.0 meters, respectively, and a particularly designed structure which contains an antenna and RF equipment. It has the same type of IMPATT diode transmitter with 2 W output power and of GaAs FET receiver of which the system noise temperature is about 600 K. The 1.0 m station is very small and convenient for transportation, and can be separated into several parts, carried, and assembled by only a few men. The 2.0 m station, which was designed as a monoblock type, is very easily operated.
- Publication:
-
Radio Research Laboratory, Review
- Pub Date:
- March 1982
- Bibcode:
- 1982RaRLR..28..113O
- Keywords:
-
- Domestic Satellite Communications Systems;
- Earth Terminals;
- Microwave Transmission;
- Single Channel Per Carrier Transmission;
- Avalanche Diodes;
- Field Effect Transistors;
- Japanese Spacecraft;
- Microwave Antennas;
- Multichannel Communication;
- Phase Shift Keying;
- Communications and Radar