Array feed/reflector antenna design for intense microwave beams

Stephen J. Blank

doi:10.1117/12.18563

1 April 1990 Array feed/reflector antenna design for intense microwave beams

Stephen J. Blank

Proceedings Volume 1226, Intense Microwave and Particle Beams; (1990) https://doi.org/10.1117/12.18563
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

It is shown that a planar-array feed has excellent potential as a solution to paraboloidal reflector distortion problems and beam-steering requirements. Numerical results from an algorithmic procedure are presented which show that, for a range of distortion models, appreciable on-axis gain restoration can be achieved with as few as seven elements. For beam-steering to + or - 1 MW, 19 elements are required. For arrays with either seven or 19 elements, high effective aperture elements give higher system gain than elements having lower effective apertures. With 37 elements, excellent gain and beam-steering performance to + or - 1.5 BW is obtained independently of assumed effective aperture of the array element. A few simple rules of thumb are presented for the design of the planar-array feed configuration.

Citation Download Citation

Stephen J. Blank "Array feed/reflector antenna design for intense microwave beams", Proc. SPIE 1226, Intense Microwave and Particle Beams, (1 April 1990); https://doi.org/10.1117/12.18563

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