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

6-9 Oct. 2014

Firstpage

1868

Lastpage

1871

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

electromagnetic wave polarisation; microstrip antenna arrays; microwave antenna arrays; mobile satellite communication; satellite antennas; L band satellite data terminals; circularly polarized quadrifilar helix array; corporate microstrip feeding network; flexible PCB material; portable satellite data terminal; sequentially rotated feed network; short resonant quadrifilar helices; Antenna arrays; Arrays; Gain; Helical antennas; Satellite broadcasting; Satellites; Antenna Arrays; Circular Polarization; Quadrifilar Helix; Satellite Data Terminals;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2014 44th European

Conference_Location

Rome

Type

conf

DOI

10.1109/EuMC.2014.6986825

Filename

6986825