R.K. Miller’s research while affiliated with University of California, Los Angeles and other places

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Publications (2)


Mesh pillowing in deployable offset paraboloidal umbrella reflector antennas
  • Conference Paper

January 1991

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36 Reads

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2 Citations

A. Prata

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W.V.T. Rusch

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R.K. Miller

An analytical formula capable of describing, with high accuracy, the offset paraboloidal umbrella reflector mesh shape is presented. This formula takes full account of the pillowing effect, and also applies to the front-end geometry, which is simply a degenerate case of an offset paraboloid. The basic steps used in deriving this formula parallel the ones used for the front-fed geometry. The validity of the analytical solution presented has been confirmed by comparison against a numerical solution obtained using the finite-difference technique.


Mesh pillow in deployable front-fed umbrella parabolic reflectors

July 1989

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71 Reads

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10 Citations

An analytical solution for the umbrella reflector surface shape, including the pillowing contribution, is presented. The solution is simple and sufficiently accurate for most antenna applications, and apart from being useful as a design tool, it can be easily incorporated into an existing computer code, allowing for more realistic evaluations of the umbrella reflector electrical characteristics. The analytical solution was tested by numerically solving the equations using a successive overrelaxation procedure. The gain degradation and the gore-related sidelobes clearly show the significance of pillowing on the antenna radiation characteristics

Citations (1)


... The emerging load technologies represented by data and relay satellites and high-throughput communication satellites have put forward higher requirements on the profile accuracy and error distribution uniformity of umbrella antennas. For high-precision umbrella antennas, it is necessary to study the effect of the anti-pillow effect [4] on surface accuracy. At present, to reduce the surface error caused by the anti-pillow effect, there are usually two types of methods. ...

Reference:

Design and accuracy analysis of new cable network topology configuration of umbrella-shaped deployable antenna
Mesh pillow in deployable front-fed umbrella parabolic reflectors
  • Citing Conference Paper
  • July 1989