Radio frequency power measurement system

Details Radio frequency power measurement system Radio frequency power measurement system

1993-06-02

1994-12-13

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Balancing

G01R 104

Patent

active

053732375

ABSTRACT:
A control system for RF (radio frequency) power measurements eliminates calibration requirements and compensates errors due to nonlinear detector characteristics and temperature drifts by using feedback to automatically adjust the power of a fixed frequency temperature stable reference signal to equal the power of the unknown incoming signal. Since the power of the reference can be precisely known, the power of the unknown signal is determined. The reference signal path has an identical electrical transfer function as the measurement input signal path so that nonlinearities and temperature variation in the measurement path are exactly offset by the corresponding variations in the feedback reference path.

REFERENCES:
patent: 3869666 (1975-03-01), Saltz et al.
patent: 4599618 (1986-07-01), Haendel et al.
I. Braithwaite, "An RF Voltmeter," Ham Radio, pp. 65-75 (Nov. 1987).

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