一种新型基片集成波导腔体滤波器的设计与实现  

Design and Realization of a Novel Substrate Integrated Waveguide (SIW) Cavity Filter

作　　者：张玉林[1] 洪伟[1] 吴柯[1] 汤红军[1] 郝张成[1] 

机构地区：[1]东南大学毫米波国家重点实验室,南京210096

出　　处：《微波学报》2005年第B04期138-141,共4页Journal of Microwaves

基　　金：国家自然科学基金重大项目(项目编号 60496317)

摘　　要：滤波器是微波毫米波电路与系统中一个重要的部件。利用基片集成波导(substrateintegratedwaveguide——SIW)技术设计并用印制电路板实现了一种应用低阻-高阻短微带线作补偿的基片集成波导滤波器,仿真与实验结果吻合良好,中心频率为5. 8GHz,相对带宽4. 95%,插损小于1. 3dB。该滤波器具有具有体积小、重量轻、容易加工和集成等优点。Filters is a kind of important components in microwave and millimeter wave circuits and systems. In this paper, a novel substrate integrated waveguide cavity filter are designed, fabricated, and tested. Being fabricated on printed circuit boards （PCB）, such kinds of filters take advantages of the high Q-factor, high power capacity and small size. The filters are designed at the center frequency of 5.8GHz, the fractional bandpass width （FBW） is 4.95%, and the minimum insertion loss is less than 1.3dB. Both numerical simulations and experimental results are presented to show the good performance of the design.

关 键 词：滤波器 腔体 耦合 SIW 低阻-高阻短微带线 

分 类 号：TN713[电子电信—电路与系统]