Characterization of tapered slot antenna feeds and feed arrays

Author

Kim, Young-Sik ; Yngvesson, K. Sigfrid

Author_Institution

Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA

Volume

38

Issue

10

fYear

1990

fDate

10/1/1990 12:00:00 AM

Firstpage

1559

Lastpage

1564

Abstract

A class of feed antennas and feed antenna arrays used in the focal plane of paraboloid reflectors and exhibiting higher than normal levels of cross-polarized radiation in the diagonal planes is addressed. A model which allows prediction of element gain and aperture efficiency of the feed/reflector system is presented. The predictions are in good agreement with experimental results. Tapered slot antenna (TSA) elements are used as an example of an element of this type. It is shown that TSA arrays used in multibeam systems with small beam spacings are competitive in terms of aperture efficiency with other, more standard types of arrays incorporating waveguide type elements

Keywords

antenna feeders; antenna radiation patterns; microwave antenna arrays; reflector antennas; waveguide antennas; aperture efficiency; cross-polarized radiation; element gain; feed antenna arrays; feed/reflector system; multibeam systems; paraboloid reflectors; radiation pattern; tapered slot antenna feeds; Antenna arrays; Antenna feeds; Antenna measurements; Antenna radiation patterns; Apertures; Integrated circuit technology; NASA; Predictive models; Reflector antennas; Slot antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.59768

Filename

59768