Signal model to extract intrinsic parameters of high-Q dielectric resonators from noisy measurements

Author

Naishadham, Krishna ; Piou, Jean E.

Author_Institution

MIT Lincoln Lab., Lexington, MA

fYear

2005

fDate

17-17 June 2005

Firstpage

1315

Lastpage

1318

Abstract

We report characterization of an open dielectric resonator with Q of 4000 to 7000 in the 25-40 GHz frequency range. Because of its small size, the measured parameters are very sensitive to background noise contributed by the coupling mechanism, package modes, radiation, etc. Therefore, it becomes important to properly calibrate out this parasitic influence in order to accurately measure the unloaded Q factor of the resonator. We report an accurate software calibration procedure based on a state-space spectral estimation algorithm, which effectively filters out the background noise and facilitates linear extraction of the unloaded Q

Keywords

Q-factor; dielectric resonators; microwave devices; millimetre wave devices; parameter estimation; state-space methods; 25 to 40 GHz; Q measurement; high-Q dielectric resonators; intrinsic parameter extraction; microwave measurements; noisy measurements; open dielectric resonator; software calibration procedure; state-space spectral estimation algorithm; unloaded Q extraction; unloaded Q factor; Background noise; Calibration; Dielectric measurements; Frequency; Noise measurement; Packaging; Q factor; Q measurement; Size measurement; State estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2005 IEEE MTT-S International

Conference_Location

Long Beach, CA

ISSN

01490-645X

Print_ISBN

0-7803-8845-3

Type

conf

DOI

10.1109/MWSYM.2005.1516921

Filename

1516921