Microstrip notch filters based on open interconnected split ring resonators (OISRRs)
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SponsorsThis work was supported by of Spain and by FEDER (TEC2010-21520-C04-04/TCM).
Bibliographic CitationRuiz, J.d.D., Hinojosa, J. & Alvarez-Melcon, A. Microstrip notch filters based on open interconnected split ring resonators (OISRRs). Appl. Phys. A 112, 263–267 (2013). https://doi.org/10.1007/s00339-013-7744-x
Equivalent circuit model
An open interconnected split ring resonator (OISRR) is proposed for use in compact microstrip notch filters. This OISRR behaves as a shunt series L C resonant circuit and allows a parallel connection with a microstrip line. This cell presents half the resonant frequency of the split ring resonator (SRR) and, therefore, is electrically very small. The measured results show a 3 dB stop-band bandwidth lower than 2 % with more than 10 dB insertion loss in the stop band. This OISRR can be useful in microwave communication systems
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