Citation
Abstract
The addition of 7.2-GHz (X-band) uplink capability to Deep Space Network (DSN) 70-m antennas required the development of a new dual-band dichroicplate-type frequency-selective surface. This plate passes both the uplink and the 8.4-GHz (X-band) downlink signals. The plate contributes to the overall noise temperature of the antenna receiving system as well as e–ciency loss. Tests were performed to measure the noise-temperature contribution of the plate. This article describes the measurements and the results. The results of noise-temperature measurements of the new dual-band plate and the existing narrowband design are presented. The efiect of the plate on antenna e–ciency is also discussed.
Keywords
dichroic
frequency selective surface
Details
- Volume
- 42-145
- Published
- May 15, 2001
- Pages
- 1–5
- File Size
- 338.8 KB