Title :
A new configuration for circularly polarized waveguide slot antenna
Author :
Salari, Mehdi ; Movahhedi, Masoud
Author_Institution :
Electr. Eng. Dept., Shahid Bahonar Univ. of Kerman, Kerman, Iran
Abstract :
A new structure to radiate circularly polarized electromagnetic waves based on the slotted waveguide antenna is proposed. A combination of a slotted rectangular waveguide and a cavity is used to created waves with circular polarization with very low axial ratio. In an array of the proposed structure, slot spacing close to λ/2 is achievable. Therefore, a planar array with presented waveguide slot antenna can designed with only one main lobe and a directive pattern with circular polarization.
Keywords :
directive antennas; electromagnetic wave polarisation; rectangular waveguides; slot antenna arrays; waveguide antenna arrays; circular polarization; circularly polarized electromagnetic wave radiation; circularly polarized waveguide slot antenna; directive pattern; planar array; slot spacing; slotted rectangular waveguide; Antenna radiation patterns; Arrays; Planar arrays; Polarization; Rectangular waveguides; Slot antennas; Array waveguide slot antenna; V-slot; circular polarization; slotted waveguide antenna;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
