YANG Tingqi1,2， TIAN Xiaoli2 ， LOU Wenzhong1， HE Bo1， FENG Hengzhen1
（1. School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081， China； 2. School of Mechanical and Electrical Engineering， North University of China， Taiyuan 030051， China）
Abstract： Microstrip patch antennas are widely used in various communication, telemetry and detection systems because of small size, light weight, low profile, simple fabrication, low cost and easy integration. However, microstrip patch antennas suffer from the disadvantage of low directive gain. In this paper, a high gain microstrip patch antenna with loading conformal metamaterials has been presented. A square split-ring resonator (SRR) is topologically transformed into a topological SRR which conforms to the cylindrical substrate and gives the metamaterials effect to suppress surface wave of the antenna. The conventional circular microstrip patch antenna resonates at 10 GHz, and the gain is 6.12 dBi. The near-field parameters of the antenna with loading 10 topological SRR unit cells keep good, and the gain is 7.88 dBi which is an increase of nearly 2 dBi compared to the conventional one.
Key words： microstrip patch antenna； split-ring resonator (SRR)； conformal metamaterials； topological transformation； gain
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基于拓扑变换的共形超材料高增益微带贴片天线
杨庭琪1,2， 田晓丽2， 娄文忠1， 何博1， 冯恒振1
（1. 北京理工大学 机电学院， 北京 100081； 2. 中北大学 机电工程学院， 山西 太原 030051）
摘要:微带贴片天线具有体积小、 重量轻、 剖面低、 成本低、 易于集成等优点， 被广泛应用于各种通信、 遥测和探测系统中。 但是， 微带贴片天线也存在定向增益低的缺点。 为此， 提出了一种加载共形超材料的高增益微带贴片天线。 将方形开环谐振器（Split-ring resonator, SRR）拓扑变换为符合圆形衬底的SRR单元， SRR赋予抑制天线表面波的超材料效应。 仿真结果表明， 初始的圆形微带贴片天线的谐振频率为10 GHz， 增益为6.12 dBi。 加载10个拓扑SRR单元的天线的近场参数保持良好， 远场增益为7.88 dBi， 比初始天线增加了近2 dBi。
关键词:微带贴片天线； 开环谐振器； 共形超材料； 拓扑变换； 增益
引用格式：YANG Tingqi， TIAN Xiaoli， LOU Wenzhong, et al． High-gain microstrip patch antenna with conformal metamaterials based on topological transformation． Journal of Measurement Science and Instrumentation， 2023， 14（1）： 103-107. DOI： 10．3969／j．issn．1674-8042．2023．01．012
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