Compact and Sharp-rejection Dual-band Bandstop Filter Based on Transversal Signal-interaction Concept
A compact dual-band bandstop filter with sharp-rejection using transversal signal interaction, consisting of a transmission line path and a cascaded coupled line path, is proposed. Folded structure is used to decrease the size. By tuning the coupling coefficient and length, the centre frequency and bandwidth can be controlled, respectively. Meanwhile the transmission line impedance and odd-mode impedance can be used to improve the return loss and to allocate the transmission poles to sharp the attenuation rate, independently. A compact dual-band bandstop filter centring at 2.4 GHz and 3.7 GHz prototype is designed and fabricated to verify the validity. The simulation and measurement results agree well.
Lei-Lei Qiu Qing-Xin Chu
School of Electronic and Information Engineering South China University of Technology, Guangzhou 510640, China
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
1335-1338
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）