Balanced dual-band BPF design using ring resonators

Author

Jhih-Hong Chang ; Yu-Sen Lin ; Ching-Her Lee ; Hsu, C.G.

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Changhua Univ. of Educ., Changhua, Taiwan

fYear

2011

fDate

8-10 Aug. 2011

Firstpage

94

Lastpage

98

Abstract

This paper presents a new balanced dual-band bandpass filter (BPF) designed using ring resonators. For common-mode (CM) signals suppression, open-circuited stubs are added to one of the two resonators so that such signals can be attenuated. Meanwhile, source-load coupling is established so that cross-coupled configuration of the BPF can produce two transmission zeros near the edges of each desired differential-mode (DM) passband to sharpen the passband selectivity. The measurement agrees well with the simulation. The measured minimum DM insertion losses are 1 and 1.35 dB in the first and second passbands, respectively, in which the CM rejections are larger than 29 and 22 dB.

Keywords

band-pass filters; resonators; CM signal suppression; DM insertion losses; DM passband; balanced dual-band BPF design; bandpass filter; common-mode signal suppression; cross-coupled configuration; differential-mode passband; loss 1 dB; loss 1.35 dB; open-circuited stubs; passband selectivity; ring resonators; source-load coupling; transmission zeros; Band pass filters; Delta modulation; Dual band; Loss measurement; Optical ring resonators; Passband; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics, Applications and Student Innovation (iWEM), 2011 IEEE International Workshop on

Conference_Location

Taipei

Print_ISBN

978-1-61284-462-6

Electronic_ISBN

978-1-61284-461-9

Type

conf

DOI

10.1109/iWEM.2011.6021448

Filename

6021448