DocumentCode
1834942
Title
Using a Load Tuner to Improve the Accuracy of Noise Characterization
Author
Simpson, Gary R. ; Pastori, William E.
Volume
15
fYear
1989
fDate
32660
Firstpage
89
Lastpage
107
Abstract
In principle, the noise figure of any microwave device is independent of load impedance; however, because of error sensitivities, a load tuner is required to achieve best noise measurement accuracy. This is because a high ouput reflection coefficient of a device under test can greatly increase the measurement receiver noise figure. This paper also presents a direct method of detecting and avoiding oscillations due to simultaneous input and output tuning.
Keywords
Acoustic reflection; Active noise reduction; Equations; Impedance measurement; Microwave devices; Noise figure; Noise measurement; Performance gain; Testing; Tuners;
fLanguage
English
Publisher
ieee
Conference_Titel
ARFTG Conference Digest-Spring, 33rd
Conference_Location
Long Beach, CA, USA
Print_ISBN
0-7803-5686-1
Type
conf
DOI
10.1109/ARFTG.1989.323941
Filename
4119507
Link To Document