Circularly polarized Ka-band waveguide slot array with low sidelobes

Author

Dogan, Doganay ; Top, Can Baris

Author_Institution

Electron. Warfare & Intell. Div., Aselsan A.S., Ankara, Turkey

fYear

2012

fDate

26-30 March 2012

Firstpage

1105

Lastpage

1109

Abstract

A novel, circularly polarized waveguide slot antenna element is designed. The slot combines circular polarization with the flexible excitation amplitude control of the classical broad wall slots. Characterization curves are obtained for the slot using the unit cell approach. Both a low sidelobe linear array and a planar array are designed and simulated using the characterization data at Ka-band. The radiation pattern measurement results for the linear array are provided.

Keywords

linear antenna arrays; planar antenna arrays; polarisation; slot antenna arrays; characterization curves; circular polarization; circularly polarized Ka-band waveguide slot array; circularly polarized waveguide slot antenna element; classical broad wall slots; flexible excitation amplitude control; low sidelobe linear array; low sidelobes; planar array; Antenna radiation patterns; Arrays; Electromagnetic waveguides; Planar arrays; Polarization; Reflection; Slot antennas; axial ratio; circular polarization; infinite array; low sidelobe; planar array; slotted waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6206488

Filename

6206488