Title :
A reflection coefficient bridge
Author_Institution :
Mitre Corp., Bedford, MA, USA
fDate :
3/1/1987 12:00:00 AM
Abstract :
The design of an unbalanced Wheatstone bridge is presented. The bridge measures the reflection coefficient of unknown impedances relative to an arbitrary reference level. A experimental unit was designed for a 25-Ω reference level. It measured high isolation with a 25-Ω load; the magnitude of the reflection coefficient with a short-circuit load differed from that with an open-circuit load by less than 0.1 dB.
Keywords :
bridge circuits; electric impedance measurement; 25 ohm; impedances; reflection coefficient bridge; unbalanced Wheatstone bridge; Bridge circuits; Impedance; Noise; Standards; Temperature measurement; Voltmeters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1987.6312646
