DocumentCode
1520688
Title
Hybrid Beam Former for Distributed-Aperture Electronically Steered Arrays
Author
Zaghloul, Amir I. ; Kilic, Ozlem
Author_Institution
Virginia Polytech. Inst. & State Univ., Falls Church, VA, USA
Volume
9
fYear
2010
fDate
7/2/1905 12:00:00 AM
Firstpage
678
Lastpage
681
Abstract
This letter presents a concept for a hybrid beam former that is composed of two stages: an RF stage with limited scanning steps and a digital stage that is capable of steering multiple beams of different channels in all required directions. The two-stage beam former uses fewer A/D converters than its all-digital counterpart and lower losses than the all-RF beam former. Examples are given for multifaceted or conformal apertures. Although the examples are limited to one-dimensional (1-D) scanning, the concept is valid for two-dimensional (2-D) scanning as well.
Keywords
analogue-digital conversion; antenna arrays; array signal processing; beam steering; A/D converters; digital stage; distributed-aperture electronically steered arrays; hybrid beam former; limited scanning steps; multiple beams steering; Beam forming; conformal arrays; electronic scanning; phased arrays; vehicle antennas;
fLanguage
English
Journal_Title
Antennas and Wireless Propagation Letters, IEEE
Publisher
ieee
ISSN
1536-1225
Type
jour
DOI
10.1109/LAWP.2010.2053512
Filename
5491081
Link To Document