A Toolbox of Subarrays for Optimizing Wide-Angular Scanning Arrays Using Trade-Offs Between Scan Loss and Side Lobe Level
نویسندگان
چکیده
A novel approach is proposed for building a planar array derived from linear arrays using toolbox of different types subarrays located parallel and perpendicular to the axes. The design assumes constant element patterns focuses on rectangular applications with one dimensional, wide-angular beam scanning. Optimization criteria concern trade-off between side lobe level performance, directive gain scan-loss, reducing number controls maximizing use phase-only elements steering. All subarray configurations functionalities, improving full performance in sidelobe scan-loss compensation, are analyzed validated detail. step-by-step integration starts center part array. This along major axis uniform maximum amplitude spatially stretched. combined cross-line this axis. At both edges array, two in-line, uniform-amplitude stretched added subarrays. distribution 3 in-line allows lowering plane Finally, at ends three subarrays, five applied scan-loss. By assuming $cos(\vartheta)$ pattern results given 41 length width. To lower cost higher power efficiency, uses only 33 multi-bit phase shifters, 12 1-bit switches, 4 attenuators control. Optimized broadside 60° scanning compared show improved notation="LaTeX">$D=24.4$ dBi (broadside), notation="LaTeX">$D=19.9$ (60°) notation="LaTeX">$\text {SLL}=-21.6$ dB {SLL}=-19.5$ (60°).
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2021
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2021.3052049