Title :
T-Shaped non-orthogonal feed input/output dual-mode bandpass filter
Author :
Yang, Cheng-Fu ; Kung, Cheng-Yuan ; Chen, Ying-Chung ; Wu, Sung-Mao ; Hong, Cheng-Shong ; Wang, Ruey-Lue
Author_Institution :
Dept. of Chem. & Mater. Eng., Nat. Univ. of Kaohsiung, Kaohsiung, Taiwan
Abstract :
A novel dual-mode bandpass filter is designed and fabricated on the Al2O3 ceramic substrate. The input/output transmission lines are arranged in a straight line for easy connecting to other RF devices. Two additional stubs are used to form a pair of T-shaped coupling lines to increase the input/output coupling effect. Two perturbation stubs are added in the ring to excite two degenerate modes. The simulated and measured results have the good agreement. It is able to use for IEEE-802.11b/g applications.
Keywords :
aluminium compounds; band-pass filters; ceramics; radiofrequency integrated circuits; transmission lines; wireless LAN; Al2O3; IEEE-802.11b/g; RF devices; T-shaped coupling lines; T-shaped feed input/output; ceramic substrate; coupling effect; dual-mode bandpass filter; input/output transmission lines; nonorthogonal feed input/output; perturbation stubs; Band pass filters; Couplings; Filtering theory; Microwave filters; Optical ring resonators; Resonator filters; Transmission line measurements; Al2O3 substrate; T-shaped; dual-mode;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
