Accession Number:

AD0604021

Title:

A FREQUENCY SELECTIVE POWER METER FOR MILLIMETER WAVES.

Descriptive Note:

Final rept. for 1 Apr 63-31 Jul 64,

Corporate Author:

GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION

Personal Author(s):

Report Date:

1964-07-29

Pagination or Media Count:

64.0

Abstract:

An interference modulation technique for microwave radiometry is described. The technique is considered for use in the development of a frequency selective power meter for operation over a wide range of frequencies and is applicable to wavelengths well into the low millimeter region. A tunable radiometer using interference modulation was operated as a frequency selective power meter in the 4-mm region. As a source of microwaves for system calibration, a gaseous noise source having a known temperature was used. Measurements were made to determine the power output level from a crystal harmonic generator, and the 4-mm harmonic was also used with the system when operated with a frequency resolution between half power points of 8 to investigate system selectivity and spurious responses.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE