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本文讨论了用双模介质加载谐振腔实现的微波线性相位滤波器结构，在非级联耦合的诸振腔之间引入一个交叉耦合，以改善通带内的时延平坦特性，给出了用模匹配法计算介质加载谐振腔的谐振频率和谐振腔之间耦合系数的方法。介绍了采用这种方法构成的滤波器的实际设计方法。最后制作了用这种方法设计出的滤波器，给出的实测结果表明它不仅可满足幅频特性的滤波要求，而且具有良好的通带时延特性。
In this paper, we discuss the structure of a microwave linear phase filter implemented with a dual-mode dielectric resonator and introduce a cross-coupling between the non-cascade coupled resonators to improve the time-delay flatness in the pass band. Mode Matching Method for Calculating the Coupling Coefficient between Resonant Cavities and the Resonant Frequency of Dielectric Loading. The actual design method of the filter constituted by this method is introduced. Finally, the filter designed by this method is made. The measured results show that it not only can meet the filtering requirements of amplitude-frequency characteristics, but also has good pass-band delay characteristics.