基于LTCC的基片集成波导滤波器仿真设计

基于LTCC的基片集成波导滤波器仿真设计

内容简介：文章详细论述了基于LTCC工艺的基片集成波导（SIW,Substrate Integrated Waveguide）滤波器的设计方法和步骤。并在此基础上,设计出了2个Ku频段具有椭圆函数响应的SIW滤波器。应用上下2个SIW谐振腔的耦合开孔位置不同,分别引入了正负耦合形式,从而能够实现具有椭圆函数响应的滤波器。验证了上下两腔之间为多层金属化耦合孔或单层金属形成的耦合窗,都可以达到引入耦合、进而实现特定的滤波响应的目的。这种基于LTCC的SIW滤波器具有尺寸小、设计灵活、电性能优良的优点。

Abstract：In this paper,the substrate integrated waveguide（SIW） elliptic filters based on low-temperature co-fired ceramic（LTCC） technology are discussed.Different coupling structures are used to implement electronic and magnetic couplings between cavities located in different layers.Two Ku-band fourth-order cross-coupled band-pass filters using both positive and negative couplings between two lays are then proposed and designed.Simulated results of those filters have very good performances.

作者：杨飞, 于洪喜, 杨毅民, 吴须大,

关键词：基片集成波导, LTCC, 滤波器