TY - The Journal of China Universities of Posts and Telecommunications A1 - T1 - Design of low-pass filter with 3-interations Koch fractal Pi-shaped DGS Y1 - 2018-06-30 00:00:00.0 JF - Journal of China Universities of Posts and Telecommunications JO - The Journal of China Universities of Posts and Telecommunications SP - 92 EP - 96 VL - 25 IS - 3 UR - {https://jcupt.bupt.edu.cn/EN/10.19682/j.cnki.1005-8885.2018.0017} N1 - 10.19682/j.cnki.1005-8885.2018.0017 ER -