4.3 Article

Switched-beam antenna based on modified Butler matrix with low sidelobe level

Journal

ELECTRONICS LETTERS
Volume 40, Issue 5, Pages 290-292

Publisher

INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el:20040198

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A switched-beam antenna with a low sidelobe level based on a modified n x n Butler feeding network is proposed. This novel design only requires addition of 180degrees power dividers in the Butler matrix part. A four-beam prototype is constructed. Measurement indicates that the sidelobe level is significantly reduced.

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