High-power amplifier modules of the 100 MHz to 350 MHz frequency band above 1200 W require the use of devices including four-way power combiner and directional coupler.In order to achieve the design goals of high power capacity,small volume,wide band and easy module coupling,a high-power directional combiner in VHF band is designed.By using the reverse balanced magnetic circuit design,the magnetic loss of the magnetic core is effectively reduced,and the design of the wideband small-volume tansmission line transformer under high power conditions is realized.By using microstrip coupling circuit and transmission line transformer combiner circuit integrated,the broadband high-power directional combiner and power amplifier module shows that 1200 W can be stable for a long time in the full frequency band of 100 MHz to 350 MHz,and the occupied volume is reduced by more than 60%compared with the raditional multiple combined devices.
关键词
功率合成器/定向耦合器/传输线变压器/带状线
Key words
power combiner/directional coupler/transmission line transformer/strip line
维普
万方数据