Title :
A Precision Attenuation Standard for X Band
Author :
Clark, R.F. ; Dean, B.J.
Author_Institution :
Radio and Electrical Engineering Division, National Research Council of Canada, Ottawa, Ontario, Canada.
Abstract :
The X-band attenuation is compared with that of a calibrated 30-Mc reference attenuator by means of a linear superheterodyne detector. Estimated accuracy is ±(0.010 db+0.005 db/10 db) for a dynamic range of 40 db. Frequency control of the signal and local oscillator klystrons, stabilization of the signal power level, and use of a stable IF amplifier have resulted in a drift for the standard of less than ±0.005 db per five-minute interval.
Keywords :
Attenuation; Attenuators; Calibration; Detectors; Diodes; Frequency; Instruments; Klystrons; Local oscillators; Voltage;
Journal_Title :
Instrumentation, IRE Transactions on
DOI :
10.1109/IRE-I.1962.5006647
