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Reflector Surface Error Compensation in Cassegrain Antennas

Cowles, P.R., Parker, Edward A. (1975) Reflector Surface Error Compensation in Cassegrain Antennas. IEEE Transactions on Antennas and Propagation, 23 (3). pp. 323-328. ISSN 0018-926X. (doi:10.1109/TAP.1975.1141087) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:38776)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1109/TAP.1975.1141087

Abstract

wo focal plane parabolic reflectors 2.8 m in diameter

profile errors by figuring the surface of a Cassegrain mirror. The paraboloids

and therefore the surface errors bad a significant effect on the antenna

could be used to measure the surface profile. The 6rst reflector had a

for this alone simplified the construction of the subreflector and improved

The second reflector had a more random distribution of surface errors.

the improvement in gain varying from 1.1 dB at 28 GHz to 2.3 dB at

predicted from the measured surface errors. For both reflectors the

linear cross polarization discrimination on axis increased from 29 dB

suggest that effective rms errors of about 0.45 nun with correlation

consistent with the estimated accuracy of the measuring and

construction techniques adopted.

Item Type: Article
DOI/Identification number: 10.1109/TAP.1975.1141087
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Depositing User: Ted Parker
Date Deposited: 14 Mar 2014 16:31 UTC
Last Modified: 29 May 2019 11:59 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/38776 (The current URI for this page, for reference purposes)
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