微带天线的宽频带馈电技术
A BROADBAND FEEDING TECHNIQUE FOR MICROSTRIP PATCH ANTENNAS
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摘要: 为展宽微带天线的频带,本文提出一种利用电抗补偿原理的宽频带双端馈电技术。文中介绍了原理和设计原则,建立了一种实用结构的理论分析和优化设计,并给出了多种实验模型和测试结果。理论和实测表明,这一技术可使微带贴片天线的驻波比带宽展宽到2到3倍或更大。
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关键词:
- 天线; 微带天线; 宽频带馈电技术
Abstract: In order to broaden the bandwidth of a microtrip patch antenna, a broadband two-port feeding technique based on the principle of reactance compensation is suggested. The principle and some design guidelines are presented; the calculation model of a practical configuration as well as its parameter optimization is demonstrated, followed by several kinds of test models and their experimental results. It is shown that this technique enables the VSWR bandwidth to be broaden to 2-3 or more times than that of the conventional design for both linear and circular polarzation operatons. -
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