Title :
Integrated adaptive beamforming antennas for wireless communications
Author :
Jeon, Seong-Sik ; Wang, Yuanxun ; Qian, Yangni ; Itoh, Tatsw
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
This paper introduces two adaptive beamforming systems based on different beamforming concepts. We first present a simple digital beamforming system, for use at carrier frequencies in C-band for high capacity WLANs. Secondly, we discuss a hybrid analog-digital beamforming system whose specific aim is to relieve the speed limit imposed by the digital components in the digital beamformer. The structures and features of the two beamforming systems, and their measurement results, are summarized.
Keywords :
adaptive antenna arrays; antenna radiation patterns; array signal processing; direction-of-arrival estimation; microwave antenna arrays; microwave circuits; wireless LAN; 5.8 GHz; C-band; DOA estimation; WLAN; adaptive beamforming antennas; analog-digital beamforming system; integrated antennas; measured antenna patterns; Adaptive arrays; Adaptive systems; Antenna arrays; Array signal processing; Bandwidth; Baseband; Direction of arrival estimation; Directive antennas; Space technology; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016134
