Title :
Wide upper-stopband super-UWB BPF based on SCRLH transmission line structure
Author :
Wang, Jiacheng ; Liu, B. ; Zhao, Yiwen ; Yuan, Chen ; Deng, H.
Author_Institution :
Coll. of Electron. & Inf. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
A super-ultra-wideband (UWB) bandpass filter (BPF) with fractional bandwidth of 138% and wide upper stopband is proposed based on a simplified composite right/left-handed transmission line (SCRLH TL) structure. The non-uniform periodical structure can help the SCRLH TL to realise a wider passband, while the complementary split-ring resonators are etched in the ground plane to achieve better performance of the upper stopband. In addition, the slots carved around the via make it feasible to reduce the overall size. The super-UWB BPF has been designed, fabricated and measured. Good agreement is shown between measurement and simulation.
Keywords :
band-pass filters; metamaterials; resonator filters; transmission lines; ultra wideband technology; SCRLH transmission line structure; complementary split-ring resonators; ground plane; simplified composite right-left-handed transmission line; super-UWB bandpass filters; wide upper-stopband;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.2517
