| 摘要: |
| 基于由低介电常数电介质组成的平行板电容加载，设计了一种新颖的数传电台天线，运用新型馈电结构和加载方式将天线的总高度限制在0.015λ0（460 MHz真空波长）以内，水平方向全向辐射，具有良好的应用前景。该天线工作频率为460 MHz，极化方式为垂直极化。电磁仿真结果表明，天线谐振频率处的反射系数在-20 dB以下，天线在水平方向上的增益均值高于1.5 dBi，在水平方向上全向辐射。该天线在工作频率上具有良好的辐射效果。 |
| 关键词: 电台天线 低剖面天线 小型化设计 电容加载 全向辐射 |
| DOI： |
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| 基金项目:广东省科技计划项目(2016A010101024);广州市科技计划项目(201802020003) |
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| A Novel Ultra-low Profile Data Transmission Radio Antenna |
| ZHANG Liangxian,LIN Fumin,LI Xiaopeng |
| (1.School of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China;2.Hi-Target Surveying Instrument Co.,Ltd.,Guangzhou 510006,China) |
| Abstract: |
| Based on parallel plate capacitive loading of low dielectric constant dielectric,a novel data transmission radio antenna is designed.It ingeniously uses the novel feeding structure and loading structure to limit the total height of the antenna to 0.015λ0(460 MHz vacuum wavelength),and the proposed antenna has an omnidirectional radiation pattern which enables it to have a good application prospect.The operating frequency of the antenna is 460 MHz and the polarization of antenna is vertical.The electromagnetic simulation results show that the reflection coefficient at the resonant frequency of the antenna is below -20 dB. The average gain of the antenna in the horizontal direction is higher than 1.5 dBi,and the antenna radiates in the horizontal direction.The proposed antenna has a good radiation pattern in the resonant frequency. |
| Key words: radio antenna low profile antenna miniaturization design capacitance loading omnidirectional radiation |
《电讯技术》编辑部 