A reconfiguralbe hybrid coupler circuit for agile polarisation antenna

Author

Ferrero, F. ; Luxey, C. ; Jacquemod, G. ; Staraj, R. ; Fusco, V.

Author_Institution

CNRS, Univ. de Nice-Sophia Antipolis, Valbonne

fYear

2006

fDate

6-10 Nov. 2006

Firstpage

1

Lastpage

5

Abstract

In this paper, we present a reconfigurable hybrid coupler suitable to feed any printed radiating element for full polarisation agility. The whole structure can alternatively radiate electromagnetic waves with orthogonal linear, right or left hand circular polarisation (CP) upon changing the state of the quasi-lumped hybrid coupler. A prototype is realized with a 0.762- mm-thick upper layer substrate and a 0.130-mm-thick feed layer substrate, both of the same dielectric material with a relative permittivity of epsiv_r=2.22. Simulated and measured matching, insertion loss, axial ratio, gain and radiation pattern are presented.

Keywords

antenna radiation patterns; coupled circuits; dielectric materials; electromagnetic wave polarisation; permittivity; agile polarisation antenna; dielectric material; electromagnetic waves; left hand circular polarisation; orthogonal linear polarisation; polarisation agility; quasilumped hybrid coupler; reconfigurable hybrid coupler circuit; relative permittivity; right hand circular polarisation; size 0.130 mm; size 0.762 mm; Coupling circuits; Dielectric loss measurement; Dielectric materials; Dielectric substrates; Electromagnetic coupling; Electromagnetic scattering; Electromagnetic wave polarization; Feeds; Permittivity; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation, 2006. EuCAP 2006. First European Conference on

Conference_Location

Nice

Print_ISBN

978-92-9092-937-6

Type

conf

DOI

10.1109/EUCAP.2006.4584684

Filename

4584684