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首次提出一种基于半波长槽线谐振器的功分器。该功分器集合了功率分配、带通响应这两种功能于一身,实现了电路设计的多功能化和小型化。该功分器的仿真和测试结果吻合良好,在通带内功分器的两个输出端口3dB等分同时插入损耗小于2dB。区别于传统功分器的是,该功分器两个输出端口的在基波同相,而在二次谐波处为反相信号。这个特点在微波非线性电路的功率合成过程中可用来抑制二次谐波。
For the first time, a power splitter based on a half-wavelength slot line resonator is proposed. The power splitter combines power distribution, bandpass response in one of these two functions to achieve a multi-functional circuit design and miniaturization. The simulation and test results of the power divider are in good agreement. In the passband, the output power of the two splitters, 3dB, has an insertion loss of less than 2 dB at the same time. Different from the traditional power splitter is that the two output ports of the power splitter are in phase with the fundamental wave and are opposite phase signals in the second harmonic wave. This feature can be used to suppress second harmonics in the power synthesis of microwave nonlinear circuits.