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分析和研究了螺旋滤波器对于电磁波的影响以及衰减因数和滤波器品质因数的关系,并详细探讨了螺旋滤波器的设计方法,最后采用平行五腔的横向螺旋线耦合结构设计并实现了一种用于有线电视系统的高功率窄带滤波器。测量结果证实了仿真结果的可靠性和实用性。
The influence of the spiral filter on the electromagnetic wave and the relationship between the attenuation factor and the quality factor of the filter are analyzed and studied. The design method of the spiral filter is discussed in detail. Finally, a parallel five-cavity transverse spiral coupling structure is designed and implemented High Power Narrowband Filters for Cable Systems. The measurement results confirm the reliability and practicability of the simulation results.