新型三角贴片加槽双模滤波器的设计

新型三角贴片加槽双模滤波器的设计

内容简介：为了实现微波滤波器的小型化，文中设计了一个新型的三角贴片加槽双模滤波器。通过加槽的设计，使谐振器的工作频率进一步降低，从而实现了滤波器的小型化及低损耗；同时研究了该结构尺寸参数的变化对通带中心频率的影响。最后利用HFSS对滤波器进行了仿真，得到工作频率为2.35~2.45 GHz以及5.64~5.65 GHz的双通带带通滤波器。整个滤波器采用微带结构，经过仿真优化，得到的滤波器的滤波特性符合预期的要求。

Abstract：To realize the miniaturization of microwave filter, a novel slotted triangular dual-mode filter is proposed in this paper.The operating frequency of resonator decreases because of slots on patch, then the new filter is realized in miniaturized and low-radiation loss design. Meanwhile, this paper studies the influence on the passband center frequency by the change of structure size parameters. Finally a bandpass filter with dual pass band of 2.35~2.45 GHz and 5.64~5.65 GHz is simulated by HFSS. The filter uses the microstrip structure and the simulated result of the filter is verified favorably by the expected requirements.

作者：杨婷, 卜千, 王瑞涛, 丁君, 郭陈江,

关键词：微波滤波器, 双模滤波器, 贴片谐振器, 双通带