A dielectric bifocal lens for multibeam antenna applications

Author

Peebles, Ann Lee

Author_Institution

Hughes Aircraft Co., Los Angeles, CA, USA

Volume

36

Issue

5

fYear

1988

fDate

5/1/1988 12:00:00 AM

Firstpage

599

Lastpage

606

Abstract

An iteration technique is applied to the design of a bifocal dielectric lens antenna. A bifocal lens has two conjugate off-axis focal points and offers good off-axis scanning performance. A computer model was developed to aid in the design analysis and far-field performance evaluation of a bifocal lens. The computer simulation results demonstrate that the bifocal dielectric lens can provide a higher-gain radiation pattern for multibeam antenna (MBA) applications over a large field-of-view. The computer study also indicates that the quadratic phase error can be significantly reduced by constraining the feed along an optimized focal arc

Keywords

antenna radiation patterns; antenna theory; dielectric-loaded antennas; digital simulation; errors; lens antennas; computer model; computer simulation; design analysis; dielectric bifocal lens; far-field performance evaluation; iteration technique; lens antenna; multibeam antenna; offaxis focal point; optimised focal arc; quadratic phase error; radiation pattern; Antenna radiation patterns; Application software; Computer errors; Computer simulation; Constraint optimization; Dielectrics; Feeds; Lenses; Optical design; Performance analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.192135

Filename

192135