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非辐射性介质波导是适用于无辐射(由于弯曲和不连续引起的)且损耗小的毫米波集成电路的介质波导。本文研究了采用这种波导的50千兆赫波段的带通滤波器和带阻滤波器。一般说来,滤波器可根据谐振器的耦合系数和负载时的Q值来设计,但从理论上求出这些值未必容易。这里研究了一种实验设计方法,它也能适用于其结构在理论分析上有困难的滤波器。如设计并试制了由聚四氟乙烯圆形谐振器组成的、中心频率为49.5千兆赫的3节带通滤波器和3节带阻滤波器,结果所得到的滤波器具有良好的特性,已经证实,带通滤波器的插入损耗的测量值为0.3分贝,而带阻滤波器的传输损耗也在30分贝以上,这种滤波器是很实用的。
Non-radiative dielectric waveguide is a dielectric waveguide suitable for non-radiative (due to bending and discontinuity) and low loss millimeter wave integrated circuits. This paper studies the 50 GHz bandpass filter and band-stop filter using this waveguide. In general, the filter can be designed based on the coupling coefficient of the resonator and the Q value at load, but finding these values theoretically is not always easy. Here we study an experimental design method that can also be applied to a filter whose structure is difficult to theoretically analyze. For example, a 3-band band-pass filter and 3 band-stop filters composed of a polytetrafluoroethylene circular resonator with a center frequency of 49.5 GHz were designed and fabricated. As a result, the resulting filter has good characteristics and has been Confirmed that the band-pass filter insertion loss measurement is 0.3 dB, and the band-stop filter transmission loss is also above 30 dB, this filter is very practical.