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- W3206082793 abstract "In this letter, a design of multibeam antenna (MBA) with two-dimensional (2-D) beam steerable capability is proposed. The proposed MBA is composed of a circular 4 × 4 butler matrix (BM) and a 2 × 4 patch antenna array. And the 2 × 4 patch antenna array consists of four two-element subarrays uniformly arranged along the <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>E</i> -plane. By introducing the switching diodes in the subarray and controlling the switching diodes <sc xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>on</small> and <sc xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>off</small> , elements of the subarray are excited through the paths with different lengths, and the beam of the subarray is steered subsequently in the <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>H</i> -plane. The circular 4 × 4 BM is designed as the beamforming network to excite the four subarrays uniformly arranged along the <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>E</i> -plane and steer the beam in the <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>E</i> -plane. The proposed MBA can generate 12 beams by selecting the excitation port and controlling the <sc xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>on</small> – <sc xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>off</small> state of the switching diodes. To validate the performance of the proposed MBA, a prototype is fabricated and measured. By design, the dimension of the designed MBA has reduced to 2.9 λ <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>0</sub> × 1.3 λ <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>0</sub> . The designed MBA operates at 5.7 GHz, and the results show that the beams of the MBA can cover the range of ±36° in the <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>E</i> -plane and ±22° in the <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>H</i> -plane, respectively." @default.
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- W3206082793 date "2022-01-01" @default.
- W3206082793 modified "2023-09-25" @default.
- W3206082793 title "A Design of Multibeam Antenna With 2-D Beam Steerable Capability" @default.
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- W3206082793 doi "https://doi.org/10.1109/lawp.2021.3119702" @default.
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