Design of Tri- Band Bandpass Filter Based on Double- Sided Parallel Stripline
Zhao Xiao- lan Wei Gang Zhang Xiu- yin Liu Pei- jie
Journal of South China University of Technology (Natural Science Edition) . 2013, (6): 6 -10 .  DOI: 10.3969/j.issn.1000-565X.2013.06.002