Design of an Edge Slotted Waveguide Antenna Array Based on T-Shaped Cross-Section Waveguide
Li, T Dou, W
Dou, W
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Alternative Title
Abstract
An edge slotted waveguide antenna array based on T-shaped cross-section radiating waveguide is proposed. The T-shaped waveguide is analyzed and designed to operate in dominant mode around the center frequency, which has a lower profile compared with the rectangular one. The radiating slots are etched and rotated alternatively on the broadened top plate without cutting into the adjacent walls. The metal fences are inserted between slots to reduce the mutual coupling and surface wave. Therefore, the sidelobe level in E-plane is well suppressed. A 2 ? 8 antenna array working at Ka-band is designed and fabricated. The measured results agree well with simulations which demonstrate this novel waveguide structure. ? 2017 Teng Li and Wenbin Dou.
Keywords
Directional patterns (antenna), Microwave antennas, Rectangular waveguides, Slot antennas, Waveguides, Center frequency, Measured results, Mutual coupling, Radiating slot, Sidelobe levels, Slotted-waveguide antennas, T shaped cross section, Waveguide structure, Antenna arrays
Source Title
International Journal of Antennas and Propagation
Publisher
Series/Report No.
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Rights
Attribution 4.0 International
Date
2017
DOI
10.1155/2017/7385357
Type
Article