|Table of Contents|

Design of Dual-band Stepped-impedance-resonators Filter

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2010年06期
Page:
792-794
Research Field:
Publishing date:

Info

Title:
Design of Dual-band Stepped-impedance-resonators Filter
Author(s):
GU Ji-hui1ZHU Yin-xia2ZHOU Hong3ZHANG Xiao-yu3JIANG Shan-shan1
1.School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China;2.Institute of Communication Engineering,PLA University of Science and Technology,Nanjing 210007,China;3.Zhongxing Telecommunications Equipment,Shanghai 201203,Chin
Keywords:
stepped-impedance-resonators dual-band passband filters impedance ratios insertion losses fractional bandwidths
PACS:
TN713
DOI:
-
Abstract:
To satisfy the wireless communication need,a dual-band passband filter is designed for wireless local area network(WLAN)(IEEE-802.11a/b/g)using a four-cascaded half-wavelength resonator.With the two simulation softwares,HFSS and Designer,its insertion loss and band rejection are simulated and optimized by adjusting the impedance ratio and the length of the resonator.The consistency of the simulation results shows that this structure has good stability.In the two passbands with the center frequency of 2.4 GHz and 5.2 GHz,the insertion loss is less than 1.6 dB and 1.9 dB,and the fractional bandwidth is larger than 5.8% and 6.7%.The stopband rejection loss reaches 45 dB at 1.6 GHz,4 GHz and 6.3 GHz,which meets the design requirements.

References:

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Last Update: 2012-11-02