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http://dx.doi.org/10.5573/ieie.2014.51.6.282

Compact UWB Band-pass Filter with Open-Stub Using Impedance Mismatching and SIR  

Lee, Won-Seok (Dongyang Mirae University, School of Electrical Engineering)
Yoon, Ki-Cheol (RFIC Research Center, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.6, 2014 , pp. 282-289 More about this Journal
Abstract
In this paper, the UWB (Ultra Wide Band) band-pass filter (BPF) with compact-size using impedance mismatching in transmission line and SIR (Stepped Impedance Resonator) instead of open stubs is presented. The proposed BPF have 103 % of bandwidth and 11.2 GHz of center frequency, respectively. In additional, the operation frequencies of the suggested BPF are 4.8 GHz to 16 GHz. In this structure, the length of the transmission line is reduced to half compared with the original one by impedance mismatching technique with low frequency band (sub harmonics) and harmonic components. Also, the open stub can be used for SIR due to reduced size. Experimental results show that the insertion and return losses are 0.35 dB and 15.1 dB, respectively and the filter size is $8.92{\times}10.6mm^2$. The proposed BPF is in good agreement.
Keywords
impedance mismatching; SIR; UWB; compat size; stub;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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