Self-diplexing circularly polarised antenna

Author

Rammos, E. ; Roederer, A.

Author_Institution

ESA/ESTEC, Noordwijk, Netherlands

fYear

1990

fDate

7-11 May 1990

Firstpage

803

Abstract

A simple self-diplexing microstrip radiator that provides up to 40 dB isolation between transmit and receive is presented. The proposed approach reduces passive intermodulation interference, and this may be a decisive factor for avoiding the use of two separate arrays for transmit and receive. The radiator also has the property of canceling on-axis cross polarization and produces a symmetrical radiation pattern. Experimental results are presented on various breadboards of these radiators at L- and S-bands using different dielectrics, thicknesses, and feed circuit designs.<>

Keywords

antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; microwave antenna arrays; L-band; S-band; breadboards; circularly polarised antenna; dielectrics; feed circuit; interference reduction; isolation; microwave antenna; on-axis cross polarisation cancellation; passive intermodulation interference; self-diplexing antenna; self-diplexing microstrip radiator; symmetrical radiation pattern; thicknesses; Circuit testing; Feeds; Frequency; Impedance; Interference; L-band; Microstrip; Nonhomogeneous media; Polarization; Propagation losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.

Conference_Location

Dallas, TX, USA

Type

conf

DOI

10.1109/APS.1990.115230

Filename

115230