Title :
A switched-beam radial horn antenna design
Author :
Janapsatya, Januar ; Bialkowski, Marek E.
Author_Institution :
Sch. of Info. Tech. & Electr. Eng., Queensland Univ., Brisbane, Qld., Australia
Abstract :
The design of an antenna consisting of a monopole circular array placed inside a radial waveguide is discussed. The main beam of the array can be steered around the azimuth plane by changing the reactive loads of the peripheral monopoles surrounding a central monopole. Housing this array in a radial guide with a suitable transition to free space results in an increased return loss bandwidth. An increased beam gain is also observed.
Keywords :
adaptive antenna arrays; antenna feeds; antenna radiation patterns; beam steering; horn antennas; monopole antenna arrays; beam steering; monopole antenna array; monopole circular array; radial waveguide; radiation pattern; reactive loads; smart antenna; switched-beam antenna; switched-beam radial horn antenna; Antenna arrays; Azimuth; Bandwidth; Beam steering; Circuits; Computer simulation; Horn antennas; Loaded antennas; Mutual coupling; Phased arrays;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2004. MIKON-2004. 15th International Conference on
Print_ISBN :
83-906662-7-8
DOI :
10.1109/MIKON.2004.1356854
