近年双模谐振器因为其固有尺寸小、带外抑制能力强等优良特性受到许多研究人员的广泛关注。许多研究人员都对双模结构的带通滤波器进行了大量的研究,很少有研究人员用它来设计带阻滤波器,而且已报道的双模带阻滤波器的文章中多是关于波导双模带阻滤波器,关于微带双模的较少。故在此基础上对一已报道的双模带阻滤波器进行改进,使其性能提高。 In recent years, the dual-mode resonator has attracted the attention of many researchers because of its small intrinsic size and excellent out-of-band rejection. Many researchers have done a lot of research on the band-pass filter with dual-mode structure. Few researchers use it to design the band-stop filter, and the article about the dual-mode band-stop filter that has been reported is mostly about the waveguide Dual-band band-stop filter, less on the dual-mode microstrip. Therefore, based on this, a reported dual-mode bandstop filter is improved to improve its performance.