Title :
Measuring and minimizing diode detector nonlinearity
Author :
Hoer, Cletus A. ; Roe, Keith C. ; Allred, C.Mckay
Author_Institution :
National Bureau of Standards, Boulder, CO 80302
Abstract :
This paper describes two techniques for measuring the linearity of amplitude detectors in general, and for measuring the deviation from square-law E of point-contact diode detectors in particular. A general mathematical model is given for determining the RF input power as a function of the detector output voltage. It is shown how to choose the value and the temperature coefficient of the video load resistance to minimize E and make E independent of temperature.
Keywords :
Attenuators; Detectors; Equations; Mathematical model; Power measurement; Resistance; Temperature measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1976.6312236