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Proceedings of the International Conference on Communication and Electronic Information Engineering (CEIE 2016)
Two novel dual-band microstrip filters using λ g /2 Stepped-Impedance-Resonator(SIR) resonators are proposed in this paper. The prominent feature of the SIR filter is that the spurious response can be controlled by the impedance ratio R z and the length ratio of the resonator. Simulated results show that the prototype of the dual-band filter1 achieves insertion loss of 0.4dB and 0.5dB, return loss of 23dB and 23.7dB, and fractional bandwidth of 9.8%and 8.2% at 2.4GHz and 5.2GHz, respectively.doi:10.2991/ceie-16.2017.79 fatcat:b6ykltvk2rdrjh3zb67bzaobdq