A FREQUENCY SELECTIVE POWER METER FOR MILLIMETER WAVES.
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 29, 1964
- Accession Number
- AD0604021
Entities
People
- M. W. Long
Organizations
- Georgia Tech