Title :
A bandpass filter with an ultra wide stopband based on Liquid Crystal Polymer (LCP)
Author :
Kim, Jin-Sup ; Lee, Jae-Young ; Lee, Gyu-Bok ; Shin, Hyunchol
Author_Institution :
Convergence Commun. Components Res. Center, Korea Electron. Technol. Inst., Seongnam, South Korea
Abstract :
A bandpass filter with a ultra wide stopband is implemented on a Liquid Crystal Polymer (LCP) with a thickness of 100 μm. The bandpass filter (BPF) is realized in a double-sided structure, of which the top side provides the main filtering characteristics by employing T-shaped resonators and the bottom side provides efficient signal feeding. The filter has been investigated numerically and experimentally. Measured result shows that the stopband can be extended to 40 GHz with the harmonic suppression at the level of 23.2 dB.
Keywords :
band-pass filters; band-stop filters; liquid crystal polymers; resonator filters; T-shaped resonators; bandpass filter; double-sided structure; harmonic suppression; liquid crystal polymer; main filtering characteristics; signal feeding; size 100 mum; ultrawide stopband filter; Band pass filters; Couplings; Harmonics suppression; Microstrip filters; Microwave filters; Resonant frequency; Resonator filters; Bandpass filter; LCP; Stopband; T-shaped resonator;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
