Title :
Wideband beamforming using circular arrays
Author :
Ioannides, Panayiotis ; Balanis, Constantine A.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
A wideband uniform circular array (UCA) in azimuth is proposed. The UCA consists of omnidirectional antenna elements, each one of them connected to a single multiplying weight. The array is operating within a desired frequency bandwidth. Using an easy to implement LMS algorithm, we demonstrate that filtering of the incoming wave in both frequency and space domains is achieved. The method provides fully spatial signal processing with a combination of beamforming and steering in the desired frequency range.
Keywords :
UHF antennas; antenna arrays; antenna radiation patterns; array signal processing; broadband antennas; 1.8 to 2.4 GHz; 600 MHz; LMS algorithm; UCA; directional pattern; filtering; frequency bandwidth; frequency domain; multiplying weight; omnidirectional antenna elements; space domain; spatial signal processing; steering; uniform circular array; wideband antenna; wideband beamforming; Antennas and propagation; Array signal processing; Azimuth; Bandwidth; Frequency; Least squares approximation; Linear antenna arrays; Narrowband; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331913
