Compact Balanced Dual-Band Bandpass Filter With High Common-Mode Suppression Using Planar Via-Free CRLH Resonator

• Published in: IEEE microwave and wireless components letters Vol. 28; no. 11; pp. 996 - 998
• Main Authors: Song, Yi, Liu, Hai Wen, Zhao, Weilong, Wen, Pin, Wang, Zhengbiao
• Format: Journal Article
• Language: English
• Published: IEEE 01.11.2018
• Subjects: Balanced; Band-pass filters; Capacitors; common-mode (CM) suppression; compact; composite right-/left-handed (CRLH); Dual band; dual-band filter; Integrated circuit modeling; Microstrip; Resonators

A novel planar via-free composite right-/left-handed resonator with an interdigital capacitor and meander microstrip line is proposed in this letter. Under differential-mode (DM) excitation, the quasi-lumped resonator is virtually connected to ground, and it exhibits dual-mode characteristics. Moreo...