Kaijun Song(宋开军), F. Zhang, Y. Fan, "Miniaturized Dual-Band Bandpass Filter Using SIR and DGS," AEU-International Journal of Electronics and Communications, 68(5): 384-387, 2014. (JCR二区，IF: 3.2)
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Pre One:D. Li, Y. Zhang, X. Feng, Kaijun Song(宋开军), Y. Fan, “Dual-band bandpass filter with controllable center frequency and bandwidth using short stub-loaded SIR and tri-section SIR,” AEU-International Journal of Electronics and Communications, 69(7): 1004-1009, 2015. (JCR二区，IF: 3.2)
Next One:Kaijun Song(宋开军), G. Li, Q. Duan, S. Hu, Y. Fan, "Millimeter-wave waveguide-based out-of-phase power divider/combiner using microstrip antenna," AEU-International Journal of Electronics and Communications, 68(12): 1234-1238, 2014. (JCR二区, IF: 3.2)