基于新型阶跃阻抗谐振器的微带双带带通滤波器  

A Novel Design of Microstrip Dual Band-pass Filter Based on Stepped Impedance Resonators

作　　者：周丽[1] 张祥军[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221000

出　　处：《固体电子学研究与进展》2013年第6期557-560,共4页Research & Progress of SSE

摘　　要：提出了一种小型多层低温共烧陶瓷(LTCC)双带带通滤波器的结构并给出其设计方法。该多层微带带通滤波器由两个中心频率不同的滤波器组成,均用新型阶跃阻抗谐振器(SIR)作为谐振单元,有效地缩短谐振器的长度。采用多层LTCC技术实现尺寸的小型化,并且获得较高的阻带抑制。经测试表明该滤波器能够在5.2GHz和6.5GHz工作,插入损耗均小于2dB,谐波抑制能力强,在小型化微波通信系统中有着广泛的应用前景。This paper proposes a microstrip dual band-pass filter using low temperature co- fired ceramic technology （LTCC）. The filter is comprised of two individual filters with different center frequencies and can reduce the length of the resonator effectively with a new stepped im-pedance resonator （SIR） as the resonance unit. The technology can achieve miniaturization and get a high stop-band rejection. The measured center frequencies of the optimized filter are 5.2 GHz and 6.5 GHz, respectively, and the insertion loss is lower than 2 dB. It has excellent capa-bility of suppressing and can be widely employed in compact microwave communication systems.

关 键 词：带通滤波器 低温共烧陶瓷 双带带通 阶跃阻抗谐振器 

分 类 号：TN713.5[电子电信—电路与系统] TN751.2