The Cassegrainian reflector and feed system design
Author: 
K. PatelAuthors Info & Claims
K. PatelAuthors Info & ClaimsPages 1095 - 1102
Abstract
Cassegrain Reflector Antenna Design consists of various effects caused by blockage and its effect on overall performance. The design for minimum blockage condition results in geometry that offers lower amount of blockage and increased spillover past the subreflector. To avoid this, optimized design of the antenna results in geometry that offers lower amount of spillover past the edges of the main reflector and increases some percentage of blockage. The design of feed elements for Cassegrain antennas is considered in the following section. It includes the design of conical corrugated horn antenna having throat section. Throat section is used for the purpose of achieving match between input waveguide and horn thereby maintaining low VSWR. The Scalar Horns are used to obtain identical performance in both the principal planes. The dual reflector design is simulated on 'Induced Current Analysis of Reflector Antenna' software.
References
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Allan W. Love, ed. 1978. Reflector Antennas. New York, IEEE Press.
[2]
Allan W. Love, ed. 1976. Electromagnetic Horn Antennas. New York, IEEE Press.
[3]
Hughes Aircraft Company, Fullerton, California. 1983. Final report for low noise, high efficiency Cassegrain antenna studies. Contract NAS5-3282 (prepared for Goddard Space Flight Center, December 1983.)
[4]
Milligan, Thomas A. 2005. Modern Antenna Design. John Wiley & Sons.
[5]
Olver A. D., P. J. B. Clarricoats. 1980. Corrugated Horns as Microwave Feeds. Peter Peregrinus, IEE Electromagnetic Waves Series, England.
[6]
P. S. Kildal. 1983. The effects of subreflector diffraction on the aperture efficiency of a conventional Cassegrain antenna An analytical approach, IEEE Trans. on Antennas & Propagation. Vol. AP-31, No. 6 (November 1983).
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S. Silver, ed. 1984. Microwave Antenna Theory and Design. New York: McGraw-Hill Book Co., MIT Rad. Lab Series.
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Index Terms
- The Cassegrainian reflector and feed system design
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Published: 25 February 2011
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