Title :
Switched-beam antenna based on modified Butler matrix with low sidelobe level
Author :
Li, W.-R. ; Chu, C.-Y. ; Lin, K.-H. ; Chang, S.-F.
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Taiwan, Taiwan
fDate :
3/4/2004 12:00:00 AM
Abstract :
A switched-beam antenna with a low sidelobe level based on a modified n×n Butler feeding network is proposed. This novel design only requires addition of 180° power dividers in the Butler matrix part. A four-beam prototype is constructed. Measurement indicates that the sidelobe level is significantly reduced.
Keywords :
adaptive antenna arrays; antenna arrays; antenna feeds; antenna radiation patterns; power dividers; Butler feeding network; low sidelobe level; modified Butler matrix; power dividers; smart antenna; switched-beam antenna array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040198
