A "Zoom-in" Scanning Array for Wireless Communications

Author

Wang, Xing ; Wang, Yuanxun Ethan

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA

fYear

2007

fDate

9-11 Jan. 2007

Firstpage

491

Lastpage

494

Abstract

A small supergain circular array with electronic scanning and "zoom-in" features has been proposed. The array utilizes the orthogonal modes existing in the array systems as bases for beamforming. A mode-decomposition network is proposed that separates the different modes into different circuit ports and matches them individually. Consequentially the modes can be combined to achiever higher gain and directivity than a single antenna with very little increase in the occupied space. The modes can also be combined in a certain fashion to allow electronic scanning. The beamwidth and the gain of the radiation pattern can be controlled according to the order of the modes

Keywords

antenna arrays; antenna radiation patterns; radiocommunication; beamforming; circular array; electronic scanning; mode-decomposition network; radiation pattern; wireless communications; zoom-in scanning array; Antenna arrays; Antenna radiation patterns; Antenna theory; Array signal processing; Bandwidth; Circuits; Dipole antennas; Numerical simulation; Transceivers; Wireless communication; "zoom-in"; electronic scanning; mode-decomposition network; supergain antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium, 2007 IEEE

Conference_Location

Long Beach, CA

Print_ISBN

1-4244-0445-2

Electronic_ISBN

1-4244-0445-2

Type

conf

DOI

10.1109/RWS.2007.351875

Filename

4160758