Low-Profile and Wideband Surface-Wave Antenna of Conical Beam for UAV Applications

被引：3
作者：
Hua, Changzhou [1 ,2 ]
Liu, Jinjian [1 ]
Yu, Yi [3 ]
Ren, Wang [4 ]
Shen, Zhongxiang [5 ]
机构：
[1] Ningbo Univ, Fac Elect Engn & Comp Sci, Ningbo 315211, Peoples R China
[2] Zhejiang Natl Def Sci & Ind Promot Ctr, Hangzhou 310005, Peoples R China
[3] Zhejiang Natl Def Sci & Ind Promot Ctr, Hangzhou 310005, Peoples R China
[4] Zhejiang Gongshang Univ, Sch Informat & Elect Engn, Hangzhou 310018, Peoples R China
[5] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Conical beam; surface-wave antenna (SWA); wideband antenna; PATCH ANTENNA;
D O I：
10.1109/LAWP.2024.3362057
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a low-profile and wideband conical-beam surface-wave antenna for unmanned aerial vehicle (UAV) applications. The compact antenna consists of a grounded dielectric conical frustum and a wideband feeding structure at its center. By using an inverted-cone feeding probe and a gear-shaped parasitic patch, cylindrical surface waves are excited to produce conical radiation patterns over an ultrawide frequency range. A prototype of the proposed antenna of only 6 mm thickness is designed, fabricated, and measured. The measured results demonstrate that the designed surface-wave antenna has an impedance bandwidth of 93.9% from 6.38 to 17.67 GHz with peak gains varying from 3.6 to 8.2 dBi and conical-beam radiation with low cross polarization. Due to its extremely low profile, wide bandwidth, and omnidirectional coverage, our proposed antenna can be potentially useful for communication and radar systems mounted on the surface of airplanes and UAVs.
引用
收藏
页码：1548 / 1552
页数：5
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