小型化微带方形SIR带通滤波器的设计与制作

Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology. TENCON 2001 (Cat. No.01CH37239) Pub Date : 2001-08-19 DOI:10.1109/TENCON.2001.949622

Hun Nam, Hyeonjin Lee, Yeongseog Lim

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引用次数: 25

摘要

利用小型化方阶阻抗谐振器(SIR)设计并制作了一种适用于IMT-2000的中心频率为1.95 GHz、带宽为60 MHz的四极准椭圆函数带通滤波器。采用非均匀时域有限差分(NUFDTD)方法对谐振腔进行了设计，并计算了三种基本结构的耦合系数。小型化方形SIR谐振器与方形开环谐振器相比，尺寸减小约50%。使用该谐振腔的带通滤波器具有良好的微波特性，在4.76 GHz时谐波抑制约为-19 dB。测量结果与模拟结果基本一致。

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A design and fabrication of bandpass filter using miniaturized microstrip square SIR

A four-pole quasi-elliptic function bandpass filter of 1.95 GHz center frequency with 60 MHz bandwidth for IMT-2000 is designed and fabricated using the miniaturized square stepped impedance resonator (SIR). The nonuniform finite difference time domain (NUFDTD) method is used to design the resonator and to calculate the coupling coefficient of three basic structures. The size reduction of miniaturized square SIR resonator is about 50% compared with a square open loop resonator. A bandpass filter using this resonator show good microwave characteristics with harmonic suppression of about -19 dB at 4.76 GHz. The results of measurements are almost similar to those of simulation.

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来源期刊

Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology. TENCON 2001 (Cat. No.01CH37239)

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