Accession Number:

AD0429159

Title:

INVESTIGATION OF THE STABILIZATION OF PARAMETRIC AMPLIFIERS.

Descriptive Note:

Final rept.,

Corporate Author:

MOTOROLA INC SCOTTSDALE ARIZ

Personal Author(s):

Report Date:

1963-12-05

Pagination or Media Count:

57.0

Abstract:

An investigation is described of new techniques for the stabilization of the gain of parametric amplifiers used in the front end of radiometer receivers. A summary of the basic theory of parametric amplifiers is given with emphasis on the degenerate mode of operation as applied to receiver front ends for microwave radiometry. The development of a 15.5 gc amplifier is described. This amplifier utilizes gain stability by feedback of a reference noise level to control the pump power. The amplifier has 17 db gain, 70 Mc bandwidth, and 3.0 db noise figure. The utilization of feedback results in a 15 to 1 improvement of gain stability for pump power changes. A 1.0 gc degenerate mode amplifier for use as the first stage of a radiometer i-f amplifier is developed. A feasibility study of a degenerate mode Ka-band parametric amplifier is described. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE