Use of L- and S-Bond Transmitters for Outer Space Applications

Abstract

This paper discusses six engineering problems associated with high reliability L- and S-band transmitters for use in space programs. The problems are: 1. Stable power in thermal vacuum 2. Low intermodulation products 3. Frequency stability 4. Isolation of power and modulation inputs 5. Efficiency 6. Size and weight. It is concluded that further improvements of primary transmitter characteristics, such as size, weight, frequency stability and efficiency will be determined by the rate of progress achieved by the electronic component manufacturers.