Citation
Abstract
To support the Mariner 1973 X-band experiment, it will be necessary to implement a dual-frequency microwave feed system for the DSS 14 64-m antenna. This system must be capable of simultaneous low noise reception at S- and X-bands and high power transmission at S-band. To fulfill this requirement, a particularly attractive approach, the reflex feed system, is being implemented. The system makes simultaneous use of both an X-band feedcone and one of the S-band feedcones. By a system of two reflectors, one of which is dichroic, the effective S-band phase center is translated from its normal position in the S-band feedhorn to a new point which very nearly coincides with the X-band feedhorn phase center. Thus, during simultaneous $- and X-band operation, the antenna subreflector optics are aligned with the X-band feedcone position. This article describes the analytical techniques used to design and analyze the feed system, as well as preliminary results from scale model tests.
Details
- Volume
- VIII
- Published
- April 15, 1972
- Pages
- 54–62
- File Size
- 480.6 KB