Circularly polarized quadrifilar helix array using a sequentially rotated feed network

Author

Kalialakis, Christos ; Collado, Ana ; Georgiads, Apostolos

Author_Institution

Radiocommun. Lab., Aristotle Univ. of Thessaloniki, Thessaloniki, Greece

fYear

2014

fDate

8-10 Oct. 2014

Firstpage

565

Lastpage

568

Abstract

A circularly polarized 2×2 antenna array suitable for portable L-band satellite data terminals is presented. The array is composed of short resonant quadrifilar helices fed by a corporate microstrip feeding network fabricated in low cost FR4 substrate. The helices are printed on flexible PCB material. A bandwidth increase compared to a single quadrifilar helix is demonstrated through the application of sequential rotation. Discussion of the array as an antenna option for portable satellite data terminal is included considering the low height of the helices used.

Keywords

antenna feeds; electromagnetic wave polarisation; helical antennas; microstrip antenna arrays; satellite communication; circularly polarized antenna array; flexible PCB material; microstrip feeding network; portable L-band satellite data terminals; sequentially rotated feed network; single quadrifilar helix; Antenna arrays; Arrays; Gain; Helical antennas; Satellite broadcasting; Satellites; Antenna Arrays; Circular Polarization; Quadrifilar Helix; Satellite Data Terminals;

fLanguage

English

Publisher

ieee

Conference_Titel

European Radar Conference (EuRAD), 2014 11th

Conference_Location

Rome

Type

conf

DOI

10.1109/EuRAD.2014.6991333

Filename

6991333