Title :
Dual-wideband bandpass filter using T-shaped structure based on transversal signal-interaction concepts
Author :
Zhou, Jiagen G. ; Feng, W.J. ; Che, W.Q.
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A high selectivity dual-wideband bandpass filter using a T-shaped structure based on transversal signal-interaction concepts is proposed. Several transmission zeros close to the two passbands can be achieved due to the superposition of signals for the two transmission paths. A planar dual-wideband bandpass filter prototype for GPS and WLAN bands with 3 dB fractional bandwidths of 28.8 and 22.7 has been designed and fabricated.
Keywords :
band-pass filters; transversal filters; GPS; WLAN bands; high selectivity dual-wideband bandpass filter; planar dual-wideband bandpass filter prototype; signal superposition; t-shaped structure; transmission paths; transmission zeros; transversal signal-interaction concepts;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.3419
