Title :
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
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;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
