基于E型贴片微带结构的无线电视发射天线

发布时间：2018-03-04 17:10

  本文选题：电视发射天线　切入点：E型贴片　出处：《大连海事大学学报》2017年01期 　论文类型：期刊论文

【摘要】：为减小传统电视发射天线的体积,提出将微带结构天线应用于电视发射系统的方法,设计一种基于E型贴片叠层的微带天线.通过采用叠层结构、E型贴片、馈电探针加装金属垫圈、空气填充和7/16射频同轴连接器,实现了微带结构的电视发射天线.为验证方法的有效性,加工了一款微带结构的UHF频段电视发射天线.测试结果表明:天线驻波比小于1.15(|S11|≤-23 d B)的相对阻抗带宽达到18.2%(频率范围544 MHz~653 MHz);中心频率处天线增益为9.23 d Bi;在1000W发射功率下,天线能够可靠工作.设计的微带结构电视发射天线尺寸显著减小,简化了天线结构和调试过程,从而节约了天线的制作成本.
[Abstract]:In order to reduce the volume of traditional TV transmitting antenna, a method of applying microstrip antenna to TV transmitting system is proposed, and a microstrip antenna based on E type laminated patch is designed. The microstrip structure of TV transmitting antenna is realized by adding metal gasket, air filling and 7/16 RF coaxial connector to the feed probe. A UHF transmission antenna with microstrip structure has been fabricated. The experimental results show that the relative impedance bandwidth of the antenna with standing wave ratio less than 1.15 (S11 鈮，

本文编号：1566547