New circularly polarized slot radiator for substrate integrated waveguide (SIW) planar array

Author

Masa-Campos, J.L. ; Sierra-Perez, M. ; Fernandez-Jambrina, J.L. ; Rodriguez-Fernandez, P.

Author_Institution

Dept. of Electron. & Commun. Technol., Radio-Commun. Syst. Group (GSRCO), Autonomous Univ. of Madrid, Madrid, Spain

fYear

2011

fDate

11-15 April 2011

Firstpage

816

Lastpage

820

Abstract

A circularly polarized slot radiator in millimetre band is presented. Low reflection and good polarization performance is obtained in comparison with state of art slot elements. A high gain array prototype has been implemented in substrate integrated waveguides (SIW) technology, in order to check the new element performance. A cosecant amplitude coverage in the elevation plane, as well as a 6° tilted monopulse pattern in the azimuth plane are obtained. A gain peak value of 28.6 dBi and 79% of efficiency at 36.7 GHz have been obtained in the specified operation band (36.7 - 37 GHz) for a manufactured antenna prototype. Likewise, the top measured axial ratio is 1.95 dB at 36.85 GHz.

Keywords

amplification; planar antenna arrays; polarisation; prototypes; reflection; slot antenna arrays; substrate integrated waveguides; SIW planar array; antenna prototype; circularly polarized slot radiator; cosecant amplitude coverage; good polarization performance; high gain array prototype; low reflection performance; millimetre band; slot elements; substrate integrated waveguide; Antenna measurements; Antennas; Arrays; Azimuth; Couplings; Microstrip; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5782561