Design of a Compact Narrow Band Pass Filter Using the Circular CSRR 


Vol. 34,  No. 11, pp. 918-923, Nov.  2009


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  Abstract

In this paper, a design method of the compact narrow band filter on the microstrip board is proposed using complementary split-ring resonators(CSRRs). The design technique of this filter is based on cascading filter stages consisting of the combination of circular CSRRs, capacitive gaps between patches, and inductive grounded stubs with the meander configuration. By these means, it was possible to get the nearly symmetric frequency responses, adjustable bandwidths, compact sizes. And also excellent characteristic of the out-of-band rejection is achieved in contrast to the conventional filter design technique. The measured insertion shows good results about -4.0㏈ at the center frequency(f?=1㎓) and passband return loss is less than -9.4㏈. The 3㏈ fractional bandwidth(FBW) is approximately 4%. The results of the frequency response measured on the fabricated band pass filter substrate show satisfactory agreement with the simulated frequency responses by the HFSS in the region of interest.

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  Cite this article

[IEEE Style]

D. Choi, D. Kim, C. Kim, "Design of a Compact Narrow Band Pass Filter Using the Circular CSRR," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 11, pp. 918-923, 2009. DOI: .

[ACM Style]

Dong-Muk Choi, Dang-Oh Kim, and Che-Young Kim. 2009. Design of a Compact Narrow Band Pass Filter Using the Circular CSRR. The Journal of Korean Institute of Communications and Information Sciences, 34, 11, (2009), 918-923. DOI: .

[KICS Style]

Dong-Muk Choi, Dang-Oh Kim, Che-Young Kim, "Design of a Compact Narrow Band Pass Filter Using the Circular CSRR," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 11, pp. 918-923, 11. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880