为了进一步减小滤波器尺寸，本文还设计了一个双层结构的微带带通滤波器。
In order to further decrease the size of the filter, a two-layer microstrip bandpass filter is also designed.
本文就微带带通滤波器的设计方法、新的结构和滤波器的小型化进行了分析和研究。
In this thesis, some research of the design methods and new structures, techniques and miniaturization of bandpass filter in wireless communication systems are proposed.
第三部分提出了一种新的微带带通滤波器结构。该结构很好解决了传统微带滤波器的辐射损耗和体积大等问题。
Last, a new microstrip bandpass filter is proposed on the basis of traditional square filter in this paper, which solves the problems of radiation loss and big volume in the traditional filter.
在传统方形双模滤波器的基础上，提出了一种新的微带带通滤波器结构。该结构很好解决了传统滤波器的辐射损耗和体积大等问题。
A new microstrip bandpass filter is proposed on the based of traditional square filter in this paper, which solves the problems of radiation loss and big volume in the traditional filter.
基于这一背景，本文主要研究基于新型微扰小环的微带双模滤波器技术，目的是得到调试灵活的小型化宽带带通滤波器。
Microstrip dual-mode bandpass filter with novel rectangular-loop has been studied in this dissertation to realize miniaturized broadband bandpass filter which is easy to adjust.
再次，设计实现了基于微扰小环和垂直叠放结构的微带双模双通带带通滤波器。
Thirdly, a dual-mode dual-band bandpass filter with rectangular-loop perturbation and stacked structure is presented.
再次，设计实现了基于微扰小环和垂直叠放结构的微带双模双通带带通滤波器。
Thirdly, a dual-mode dual-band bandpass filter with rectangular-loop perturbation and stacked structure is presented.
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