摘要
基于引向天线的结构设计制作了一种高增益引向天线,并对具体结构和参数的选择进行了讨论,给出了该天线射频放大器的设计电路。通过实际测试表明:天线工作频段在450MHz～470MHz,增益约为20dB,前后比约为21dB,波瓣约为50°,与计算结果基本吻合。
The yagi antenna with high gain based on yagi antenna is design, and the choice of the structure parameters on the performance of the antenna is discussed. The design circuit of the radio frequency amplifier is also presented. The antenna is also fabricated and tested. The working band of the antenna is 450MHz-470MHz, and the peak gain is about 20dB, the front to back ratio is about 21 dB, and the Beam width is about 50° and it accords with the results.
出处
《价值工程》
2012年第33期207-208,共2页
Value Engineering
关键词
引向天线
高增益
方向图
射频放大器
yagi antenna
high gain
radiation pattern
radio frequency amplifier
