2019年
A 20-GHz-Band $64\times64$ Hollow Waveguide Two-Dimensional Butler Matrix
IEEE Access
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- 巻
- 7
- 号
- 開始ページ
- 164080
- 終了ページ
- 164088
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1109/ACCESS.2019.2952933
- 出版者・発行元
- Institute of Electrical and Electronics Engineers ({IEEE})
In this paper, a 20-GHz-band 64 x 64 hollow waveguide Butler matrix is proposed. By using two-plane short slot couplers and a modified diagram, a short-axis two dimensional Butler matrix is realized. The design method of the diagram and components is presented. The Butler matrix is composed of two plane hybrids, cross couplers and phase shifters. The designed Butler matrix is fabricated by milling and screwing together nine aluminum plates. The dimensions and weight are 86.40 mm x 74.19 mm x 396.34 mm and 7.0 kg, respectively. Transmission characteristics as a beam switching circuit are characterized by measurements, with a low insertion loss of less than 1.8 dB and an excitation error of 4-dB and 40-deg. standard deviation. Radiation characteristics as a 64-beam antenna are measured, and a wide coverage area of 40% of the hemisphere and high directivity of more than 18.7 dBi were determined by measurements.
- リンク情報
- ID情報
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- DOI : 10.1109/ACCESS.2019.2952933
- ISSN : 2169-3536
- ORCIDのPut Code : 65079041
- Web of Science ID : WOS:000509475800010