The performance of a 22 GHz radio telescope

Title: The performance of a 22 GHz radio telescope
Creator: Gaylard, Michael John
Subject: Radio telescopes
Subject: Paraboloid
Date Issued: 1977
Date: 1977
Type: Thesis
Type: Masters
Type: MSc
Identifier: vital:5520
Identifier: http://hdl.handle.net/10962/d1011946
Identifier: Radio telescopes
Identifier: Paraboloid
Description: The performance of the Rhodes 22 GHz radio telescope and its improvement are discussed in this thesis. The reflector surfaces of the Cassegrain antenna were surveyed and the surface errors minimised, while the magnitude of thermal and gravitational defomations was calculated. The design and operation of the microwave front end has been improved, and the mixer performance characterised. The continuum and spectral line receivers and their sensitivity are described. The aperture efficiency, which has been raised from 0,47 to 0,57, was deduced from solar and lunar observations and atmospheric attenuation measurements. The antenna beam pattern was also obtained from the observations, with the aid of a computer program, and is compared to that predicted for the telescope.
Format: 127 p.
Format: pdf
Publisher: Rhodes University
Publisher: Faculty of Science, Physics
Language: English
Rights: Gaylard, Michael John

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