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Progress In Electromagnetics Research Letters
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5.8-GHz SUPPRESSED UWB BANDPASS FILTER EMPLOYING MODIFIED CRLH-TL OF TWO AND THREE UNIT CELLS

By Y. Shen and C. L. Law

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Abstract:
This paper presents a novel modified composite right/left-handed (CRLH) unit cell to achieve sharp rejection at 5.8 GHz. Design formulas are theoretically derived and numerically verified. Based on this unit cell, ultra-wideband (UWB) bandpass filters with two and three cells are designed, fabricated, and on-wafer measured. The measurement results show that the CRLH bandpass filter has a rejection of >60 dB at 5.8 GHz, a minimum insertion loss of 1.1 dB, and 3-dB bandwidths of 3.09-4.79 GHz and 3.22-4.61 GHz for the two and three unit cells, respectively.

Citation:
Y. Shen and C. L. Law, "5.8-GHz Suppressed UWB Bandpass Filter Employing Modified CRLH-TL of Two and Three Unit Cells," Progress In Electromagnetics Research Letters, Vol. 29, 107-113, 2012.
doi:10.2528/PIERL11120206

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