A Hybrid Coupled-Resonator Bandpass Filter Topology Implemented on Lossy Semiconductor Substrates

Author

Frye, Robert C. ; Liu, Kai ; Badakere, Guruprasad ; Lin, Yaojian

Author_Institution

LLC, Berkeley Heights

fYear

2007

fDate

3-8 June 2007

Firstpage

1757

Lastpage

1760

Abstract

The Q of filter resonators formed on lossy substrates depends on their mode of excitation. Modifying the circuit design such that the voltage signals on resonator coils is predominantly differential can result in substantially higher Q. Band-pass filter resonator topologies that exploit this difference are discussed, and experimental results are presented for 802.11 b band-pass filters implemented in a thin-film technology on silicon substrates.

Keywords

Q-factor; band-pass filters; passive filters; resonator filters; thin film circuits; 802.11b band-pass filters; Q-factor; hybrid coupled-resonator bandpass filter topology; integrated passive device technology; lossy semiconductor substrates; resonator coils; silicon substrates; thin-film technology; voltage signals; Band pass filters; Circuit synthesis; Circuit topology; Coils; Coupling circuits; Resonator filters; Semiconductor thin films; Substrates; Thin film circuits; Voltage; Bandpass filters; circuit topology; passive circuits; thin-film inductors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380069

Filename

4264194