Citation
Abstract
This article describes the cryogenic design and performance of a prototype lownoise amplifier (LNA) system for the Deep Space Network (DSN) Large Array task. The system is used to cool a dual-frequency feed system equipped with high-electron mobility transistor (HEMT) low-noise amplifiers and the associated support electronics. The LNA/feed system operates at a temperature under 18 K. The system is designed to be manufactured at minimum cost. The design considerations, including the cryocooler to be used, vacuum system, microwave interconnects, mechanical components, and radiation shielding, are discussed.
Keywords
cryogenic design of LNA
DSN Large Array LNA
Details
- Volume
- 42-157
- Published
- May 15, 2004
- Pages
- 1–13
- File Size
- 428.3 KB