Title :
Circular and polygonal array antennas for electronic steering
Author :
Brianeze, Juliano R. ; Reis, Edson
Author_Institution :
Orbisat da Amazonia Industria e Aerolevantamento S/A, Campinas, Brazil
Abstract :
The circular (ring) array antenna may be considered as one of the building blocks of a whole family of conformal array antennas, which are antennas structurally integrated to a given surface (Visser, 2005). A cylindrical or circular array of elements has a potential of 360° coverage, either with an omnidirectional beam, multiple beams, or a narrow beam that can be steered over 360°. A typical application could be base station antennas in a mobile communication system, which could result in compact and low-cost installations (Josefsson, 2006). The purpose of this paper is to describe an implementation of electronically steered circular and polygonal array antennas. A procedure to synthesize artificial radiating elements of an array is also presented. Finally, an evolutionary computing optimization and its results are shown.
Keywords :
antenna arrays; antenna radiation patterns; beam steering; evolutionary computation; artificial radiating elements; base station antennas; conformal array antennas; cylindrical array; electronic steering; electronically steered circular array antennas; evolutionary computing optimization; mobile communication system; omnidirectional beam; polygonal array antennas; ring array antenna; Antenna radiation patterns; Arrays; Directive antennas; Linear antenna arrays; Optimization;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5560991