A study of noise phenomena in microwave components using an advanced noise measurement system

Author

Ivanov, Eugene N. ; Tobar, Michael E. ; Woode, R.A.

Author_Institution

Dept. of Phys., Western Australia Univ., Nedlands, WA, Australia

Volume

44

Issue

1

fYear

1997

Firstpage

161

Lastpage

163

Abstract

A novel 9 GHz measurement system with thermal noise limited sensitivity has been developed for studying the fluctuations in passive microwave components. The noise floor of the measurement system is flat at offset frequencies above 1 kHz and equal to -193 dBc/Hz. The developed system is capable of measuring the noise in the quietest microwave components in real time. We discuss the results of phase and amplitude noise measurements in precision voltage controlled phase shifters and attenuators. The first reliable experimental evidences regarding the intrinsic flicker phase noise in microwave isolators are also presented.

Keywords

attenuators; electric noise measurement; flicker noise; microwave isolators; microwave measurement; microwave phase shifters; phase noise; 9 GHz; amplitude noise; flicker phase noise; fluctuations; microwave isolator; noise measurement; passive microwave component; voltage controlled attenuator; voltage controlled phase shifter; 1f noise; Attenuators; Frequency measurement; Microwave measurements; Noise measurement; Phase noise; Phase shifters; Real time systems; Voltage control; Voltage fluctuations;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.585211

Filename

585211