Summary
International Symposium on Antennas and Propagation
2008
Session Number:3C23
Session:
Number:3C23-2
Axial-Rotation Beamwidth Adjustable Arrays For Wireless Communications
Senglee Foo, Bill Vassilakis,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
This paper presents a simple concept of beamwidth adjustable array suitable for wireless communications. The azimuth beamwidth of the proposed antenna array is continuously variable through on-axis rotation of a single-column or a dual-column staggered array. Radiating elements of the array are arranged in off-center positions between alternate elements in the azimuth direction and are mounted on separate reflectors, alternately. With a proper choice of offset distance, HPBW variation from 36 deg to over 100 deg is feasible with a rotation angle of less than ±35 deg, for a typical UMTS frequency between 1.7GHz and 2.2 GHz.