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An ultra-compact hairpin band pass filter with additional zero points
Journal article   Peer reviewed

An ultra-compact hairpin band pass filter with additional zero points

Kaixue Ma, Kiat Seng Yeo, Jianguo Ma and Manh Anh Do
IEEE microwave and wireless components letters, Vol.17(4), pp.262-264
01/04/2007
DOI: https://doi.org/10.1109/LMWC.2007.892955

Abstract

Engineering Engineering, Electrical & Electronic Science & Technology Technology
A novel quasi-hairpin filter is presented in this letter. The filter shows ultra-compact size, steep selectivity, and deep stopband rejection with additional transmission zero points. The fourth-order filter operating at 1.69 GHz with a fractional bandwidth of 10% occupies the active area of 5.5 mm x 6.2 mm (0.031 lambda(o) x 0.035 lambda(o)).

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