Circularly polarized slotted substrate integrated waveguide array with low axial ratio over wide angles

Author

Philippe, Ratajczak

Author_Institution

Antenna Unit, Orange Labs., La Turbie, France

fYear

2014

fDate

6-11 April 2014

Firstpage

1227

Lastpage

1231

Abstract

A circularly polarized slotted substrate integrated waveguide (SIW) array antenna is presented. This array is based on a new type of circularly polarized (CP) slot radiator presenting good circular polarization performances for left-hand and right-hand circular polarization (LHCP, RHCP). The capabilities of this new type of slot of maintaining good circular polarization radiation performances for beams scanned over a large angle range have been verified. A Rotman lens has been designed to feed a 15 slotted waveguides array generating a set of independent beams covering the ±60° angle range. Each slotted waveguide contains 16 annular slots.

Keywords

antenna radiation patterns; metamaterials; substrate integrated waveguides; waveguide antenna arrays; Rotman lens; SIW array antenna; circularly polarized slot radiator; circularly polarized slotted substrate integrated waveguide array antenna; left-hand circular polarization; right-hand circular polarization; Antenna arrays; Antenna radiation patterns; Arrays; Lenses; Polarization; Slot antennas; Rotman lens; SIW; annular slot; beam scanning; beamforming; slotted waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6901997

Filename

6901997