A Versatile Design Method Applied to Conformal Metasurface Array Antenna

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Microwave and Optical Technology Letters Pub Date : 2025-02-24 DOI:10.1002/mop.70134

Dongyang Lu, Zehua Wang, Chi Zhang, Ying Yu

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Abstract

Accurate phase distribution and excitation incident characteristics are key issues in the design of conformal metasurface array antenna (CMAA). In this paper, we employ the improved conformal phase compensation formula to calculate the accurate phase distribution at different bending degrees. Meanwhile, elements with stable incident characteristics are designed to minimize the phase-shift deviation caused by the increase in incident angle. Furthermore, the combination of 1Bit digital coding and superposition of aperture fields enables the CMAA to adapt to different bending degrees while realizing beam-forming. Based on the designed structure, a 10 GHz dual-beam in the direction of (φ = 90°, θ = ±45°) conformal reflect-array antenna (CRAA) is fabricated by printing 15 × 15 liquid metal elements on PDMS substrate. The measured peak gain is 17.9 dBi, and the antenna maintains favorable radiation characteristics in the range of bending degree between ± 25%.

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication

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