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1.0 引言本报告的内容涉及背负式电台使用的电调谐天线自动匹配网络样机的设计、研制及制作。这一匹配网络能匹配10瓦射频功率,频率复盖范围为30～80兆赫。它应有效地将背负式电台所规定的天线阻抗与所需发射机的负载阻抗进行匹配,而同时将控制功耗和调谐时间减至最少。更进一步的是要求网络及其组件在尺寸、重量、机械复杂性及热稳定性方面达到最
1.0 INTRODUCTION This report covers the design, development and production of an automatic matching network prototype for electrically tuned antennas for piggyback stations. This matching network can match the 10 watts RF power, frequency coverage range of 30 to 80 MHz. It should effectively match the antenna impedance specified by the piggyback station with the load impedance of the desired transmitter while minimizing control power consumption and tuning time. A further requirement is that the network and its components be required to achieve maximum size, weight, mechanical complexity and thermal stability