Dual-Band Shared Aperture Fabry–Perot Cavity Antenna With Beam Deflection

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-02-04 DOI:10.1002/mop.70121

Xin He, Wenhua Qin, Juan Xu

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Abstract

In this paper, a novel partially reflective metasurface (PRS) unit is proposed for beam deflection in a dual-band shared aperture Fabry–Perot cavity antenna (DB-FPA). It operates in the C-band and X-band. Independent control of different frequency bands can be achieved by adjusting the different parameters of the PRS unit. A coaxially fed patch antenna is used as the feed source for the proposed antenna. This antenna exhibits high aperture efficiency and can operate in two bands with a ratio of 1:1.67. The measurements indicate the impedance bandwidth $| S_{11} | < - 10$ dB of the DB-FPA is 5.54-6.48 GHz (15.6%) and 9.62–10.52 GHz (9%). The gain is 7.15 dBi at 6 GHz with an aperture efficiency of 34.8%, and 8.3 dBi at 10 GHz with an aperture efficiency of 14.5%. The beam deflection of $22^{\circ}$ at 6 GHz and $- 54^{\circ}$ at 10 GHz.

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带波束偏转的双频共享孔径法布里-珀罗腔天线

本文提出了一种用于双频共享孔径法布里-珀罗腔天线（DB-FPA）波束偏转的部分反射超表面（PRS）单元。它在c波段和x波段工作。通过调整PRS单元的不同参数，可以实现对不同频段的独立控制。采用同轴馈电贴片天线作为所提天线的馈电源。该天线具有较高的孔径效率，可以工作在两个波段，比为1:1.67。测量结果表明阻抗带宽| S 11 | <；−10$ |{S}_{11}|\lt -10$ dB - fpa的dB值分别为5.54 ~ 6.48 GHz（15.6%）和9.62 ~ 10.52 GHz（9%）。6 GHz时增益为7.15 dBi，孔径效率为34.8%；10 GHz时增益为8.3 dBi，孔径效率为14.5%。22°${22}^{\circ}$在6 GHz和- 54°$-{54}^{\circ}$在10 GHz。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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