Title :
Fine beam steering for a monopole smart antenna system in a circular array configuration
Author :
Janapsatyata, J. ; Bialkowski, M.E.
Author_Institution :
Sch. of ITEE, Univ. of Queensland, Brisbane, Qld., Australia
Abstract :
A smart antenna system formed by a circular array of 7 monopoles with one active central element surrounded by a concentric ring of 6 passive elements is investigated. Originally, 3 peripheral elements are short circuited and 3 are open circuited to obtain beams in 6 different directions. Here, reactive loads are being used to improve the resolution of a smart antenna´s beam steering. With the introduction of reactive loading, the array is able to steer its beam in 36 different directions. Increased gain of at least 0.5 dB is also noted.
Keywords :
adaptive antenna arrays; beam steering; monopole antenna arrays; 0.5 dB; active central element; beam steering; circular antenna array; monopole smart antenna system; passive element concentric ring; reactive loading; Antenna arrays; Australia; Azimuth; Beam steering; Circuits; Control systems; Electromagnetic scattering; Loaded antennas; Performance analysis; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220052
