基于缺陷接地结构的抗谐波紧凑带通滤波器在GPS中的应用

IF 1.3 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Active and Passive Electronic Components Pub Date : 2014-04-03 DOI:10.1155/2014/436964

Haiwen Liu, Baoping Ren, Xiang Xiao, Zhi‐Chong Zhang, Shen Li, Suping Peng

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引用次数: 9

摘要

研制了一种采用具有谐波抑制特性的缺陷接地结构(DGS)谐振腔的小型化带通滤波器。利用阶跃阻抗DGS谐振器的特性，抑制了BPF的二次和三次谐波。此外，还建立了开路存根，从而可以独立创建两个可调传输零点，以延长阻带，提高抑制水平。最后，设计并实现了一种以1.62 GHz为中心，阻带扩展至5.6 GHz，抑制电平优于20 dB的二阶BPF，用于GPS应用。仿真结果与实测结果吻合良好，验证了该设计方法的有效性。

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Harmonic-Rejection Compact Bandpass Filter Using Defected Ground Structure for GPS Application

A miniaturized bandpass filter (BPF) using defected ground structure (DGS) resonator with the characteristic of harmonic rejection is developed in this paper. The second and third harmonics of the proposed BPF are rejected by the characteristic of stepped-impedance DGS resonator. Moreover, open stubs are established so that two adjustable transmission zeros can independently be created to extend the stopband and improve the rejection level. Finally, a second-order BPF, centered at 1.62 GHz with a stopband extended up to 5.6 GHz and a rejection level better than 20 dB, is designed and implemented for GPS application. A good agreement between simulation and measurement verifies the validity of this design methodology.

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来源期刊

Active and Passive Electronic Components ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Active and Passive Electronic Components is an international journal devoted to the science and technology of all types of electronic components. The journal publishes experimental and theoretical papers on topics such as transistors, hybrid circuits, integrated circuits, MicroElectroMechanical Systems (MEMS), sensors, high frequency devices and circuits, power devices and circuits, non-volatile memory technologies such as ferroelectric and phase transition memories, and nano electronics devices and circuits.