Investigations into a power-combining structure using a reflectarray of dual-feed aperture-coupled microstrip patch antennas

Author

Bialkowski, Marek E. ; Song, Hyok J.

Author_Institution

Dept. of Comput. & Electr. Eng., Queensland Univ., Brisbane, Qld., Australia

Volume

50

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

841

Lastpage

849

Abstract

This paper details an investigation of a power combiner that uses a reflectarray of dual-feed aperture-coupled microstrip patch antennas and a corporate-fed dual-polarized array as a signal distributing/combining device. In this configuration, elements of the reflectarray receive a linearly polarized wave and retransmit it with an orthogonal polarization using variable-length sections of microstrip lines connecting receive and transmit ports. By applying appropriate lengths of these delay lines, the array focuses the transmitted wave onto the feed array. The operation of the combiner is investigated for a small-size circular reflectarray for the cases of -3 dB, -6 dB and -10 dB edge illumination by the 2×2-element dual-polarized array

Keywords

delay lines; electromagnetic wave polarisation; microstrip antenna arrays; microstrip lines; power combiners; reflector antenna feeds; aperture-coupled antennas; circular reflectarray; corporate-fed array; delay lines; dual-feed antennas; dual-polarized array; feed array; microstrip antennas; microstrip lines; patch antennas; power-combining structure; Dielectric loss measurement; Feeds; Lenses; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Phased arrays; Polarization; Power combiners;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2002.1017666

Filename

1017666