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

fYear

2010

fDate

7-10 Dec. 2010

Firstpage

1193

Lastpage

1196

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

5728418