Citation
Abstract
The 1.7- to 2.6-GHz (S-Band) transmitter filter, installed in the beam-waveguide (BWG) antennas, originally was designed for the 34-m high-efficiency antennas (HEFs). This filter operated at a very high physical temperature. In the BWG antennas, this filter is accessible to the maintenance personnel while the antenna is operational. Therefore, it is considered a safety risk. To reduce the risk, it was decided to design a new filter with lower insertion loss and better cooling that would lower the physical temperature. The new filter was specified at JPL but designed and fabricated at Gamma ‘F’ Corporation. The design replaced copper for aluminum to reduce ohmic loss and added copper cooling fins to help radiate the heat away. This filter will be installed in Deep Space Station 54 (DSS 54) near Madrid, Spain. In this article, the physical temperatures of the new filter are presented and compared with the old filter at various transmitting power levels. The frequency response of the filter also is provided for future reference.
Keywords
Details
- Volume
- 42-137
- Published
- May 15, 1999
- Pages
- 1–5
- File Size
- 301.4 KB