LC-Notch-Filters Less Sensitive to LTCC Process Tolerances

Author

Matters-Kammerer, Marion K. ; Reimann, Klaus

Author_Institution

Philips Res. Labs., Eindhoven

Volume

16

Issue

8

fYear

2006

Firstpage

458

Lastpage

460

Abstract

A new design procedure for low temperature cofired ceramics integrated single inductance-capacitance (LC)-notch filters is described that minimizes the shift in resonance frequency due to process variations such as layer thickness and line-width variations. 25-mum thin layers of dielectric constant 7.8 and 17.9 were used for the experimental verification and further miniaturization of the layout. A two to five-fold reduction of the resonance frequency uncertainty was achieved compared to conventional designs. Application of these new single LC-notch filters in Bluetooth radio frequency-front-end modules is discussed

Keywords

ceramics; dielectric materials; microwave filters; notch filters; 25 micron; Bluetooth; LC-notch-filters; LTCC process tolerances; dielectric constant; inductance-capacitance-notch filters; layer thickness variations; line-width variations; low temperature cofired ceramics; radio frequency-front-end modules; resonance frequency; transmission line resonator; Capacitance; Capacitors; Ceramics; Distributed parameter circuits; Impedance; Inductance; Radio frequency; Resonance; Resonant frequency; Resonator filters; Circuit modeling; circuit optimization; sensitivity; transmission line resonator;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2006.879485

Filename

1661643