Uniplanar 2-D Butler Matrix for Multibeam Arrays
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2020 4th Australian Microwave Symposium (AMS), 2020, 00, pp. 1-2
- Issue Date:
- 2020-04-09
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Filename | Description | Size | |||
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09059416.pdf | Published Version | 1.02 MB |
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A 2-D Butler matrix (BM) in uniplanar configuration for designing multibeam array antenna (MAA) is proposed using substrate integrated waveguide (SIW) technology. Firstly, a novel topology for building uniplanar 2D BM is proposed, which successfully transforms the traditional 3-D topology to a 2-D (or uniplanar) one. To realize the planarization of basic components, a novel design of eight-port hybrid couplers, is developed to transform four spatially intersected couplers to a planar structure. To address the issue of excessive path intersections, a novel SIW eight-port crossover is proposed to reduce the number of path intersections from 16 to merely 4. Using this proposed 2-D BM, a 2-D MAA with 16 (4 × 4) beams can be realized.
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