Broadband Full-Metal Cavity Slot Antenna Using Mixed Resonant Modes

被引：1
作者：
Chen, Rui-Sen [1 ,2 ,3 ,4 ]
Liao, Zhi-Cai [1 ,2 ,3 ]
Wong, Sai-Wai [5 ]
Shao, Qiang [1 ,2 ,3 ]
Al-Nuaimi, Mustafa K. Taher [1 ,2 ,3 ,4 ]
Chen, Fu-Chang [6 ]
Huang, Guan-Long [1 ,2 ,3 ]
机构：
[1] Foshan Univ, Guangdong Prov Key Lab Ind Intelligent Inspect Tec, Foshan 528225, Peoples R China
[2] Foshan Univ, Sch Elect & Informat Engn, Foshan 528225, Peoples R China
[3] Foshan Univ, Guangdong Prov Key Lab Intelligent Food Mfg, Foshan 528225, Peoples R China
[4] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China
[5] Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen 518060, Peoples R China
[6] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Broadband antennas; Slot antennas; Resonant frequency; Probes; Impedance; Resonance; Impedance matching; Broadband antenna; high efficiency; metal cavity; mix resonant modes; WAVE-GUIDE; ARRAY ANTENNA; PATCH ANTENNA; BANDWIDTH;
D O I：
10.1109/LAWP.2024.3417407
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：
In this letter, a broadband full-metal cavity slot antenna using mixed resonant modes is proposed. A simple dual-resonance slot antenna is first presented, which is composed of a feeding probe and a metal cavity with a rectangular slot on the top wall. The rectangular slot can produce a resonant-iris mode, while the feeding probe can produce a coaxial-cavity mode. Benefitted by introducing the new coaxial-cavity mode, this antenna can simultaneously achieve wide operating bandwidth and simple antenna structure. To further improve the bandwidth, this dual-mode antenna is combined with a dual-mode cavity resonator operating at TE101 cavity mode and resonant-iris mode, thus realizing a quadruple-resonance broadband antenna. The experimental results show that the proposed quadruple-resonance metal cavity slot antenna can achieve 54% bandwidth with stable radiation pattern and high total efficiency over the entire operating band.
引用
收藏
页码：4049 / 4053
页数：5
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