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A Two-Beam Waveguide Slot Array with Sidelobe Suppression

Yuichi KIMURA, Hiroshi SHINODA, Kenta WATANABE, Jiro HIROKAWA, Makoto ANDO

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Summary :

A low sidelobe two-beam waveguide slot array is designed and measured. The antenna structure should be symmetrical for realizing two symmetrical beams which imposes restriction in slot design for the sidelobe and the gain. The slot coupling distribution is optimized numerically for side-lobe suppression under the condition of the structural symmetry. The first side-lobe level is minimized for the specific antenna efficiency in the continuous source model. This synthesis is reinforced by the full wave slot analysis using the method of moments. The design is confirmed by experiments using a one-dimensional array at 12 GHz and the good agreements between the predictions and the measurements are observed.

Publication
IEICE TRANSACTIONS on Communications Vol.E84-B No.4 pp.1070-1078
Publication Date
2001/04/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Antenna and Propagation

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