一种用于无人机通信的紧凑型超宽带全向空腔天线

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-09-16 DOI:10.1002/mop.70380

Jiang-Lou Xue, Shi-Wei Qu, Chao Sun, Chen Chen

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引用次数: 0

摘要

提出了一种用于无人机通信系统的紧凑型超宽带全向空腔背馈天线。单锥天线嵌入金属腔内，可实现平装安装，从而防止飞机气动性能下降。集成了一个耦合环和四个负载电阻的短路桩，有效地降低了天线的最低工作频率，同时实现了天线的小型化和宽带性能。设计、制造和测试了所提出的天线，以验证其性能。实测和仿真结果表明，该天线具有114%的相对带宽（0.52 ~ 1.90 GHz），电压驻波比小于3。该天线的金属腔尺寸为0.36 λ L ${\ λ}_{L}$ × 0.36 λ L${\lambda}_{L}$ × 0.062 λ ${\lambda}_{L}$ (λL ${\lambda}_{L}$为最低工作频率下的自由空间波长)。

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A Compact Ultra-Wideband Omnidirectional Cavity-Backed Antenna for UAV Communication

This paper presents a compact ultra-wideband omnidirectional cavity-backed antenna for UAV communication systems. The monocone antenna is embedded within a metallic cavity to enable flush-mounted installation, thereby preventing aerodynamic performance degradation of aircraft. The integration of a coupling ring with four resistor-loaded shorting stubs effectively reduces the antenna's lowest operating frequency, enabling simultaneous antenna miniaturization and broadband performance. The proposed antenna is designed, fabricated, and tested to verify its performance. Measured and simulated results indicate that the antenna exhibits a 114% relative bandwidth (0.52–1.90 GHz) with a voltage standing wave ratio less than 3. The metallic cavity of the proposed antenna features dimensions of 0.36 $λ_{L}$ × 0.36 $λ_{L}$ × 0.062 $λ_{L}$ ( $λ_{L}$ is the free-space wavelength at the lowest operating frequency).

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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