Compact radiometric microwave calibrator

Details Compact radiometric microwave calibrator Compact radiometric microwave calibrator

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006rsci...77f4905f&link_type=abstract

Review of Scientific Instruments, Volume 77, Issue 6, pp. 064905-064905-6 (2006).

Astronomy and Astrophysics

Astronomy

4

Astronomical And Space-Research Instrumentation, Thermometers, Bolometers, Infrared, Submillimeter Wave, Microwave, And Radiowave Receivers And Detectors, Photometers, Radiometers, And Colorimeters, Standards And Calibration

Scientific paper

The calibration methods for the ARCADE II instrument are described and the accuracy estimated. The Steelcast coated aluminum cones which comprise the calibrator have a low reflection while maintaining 94% of the absorber volume within 5 mK of the base temperature (modeled). The calibrator demonstrates an absorber with the active part less than one wavelength thick and only marginally larger than the mouth of the largest horn and yet black (less than -40 dB or 0.01% reflection) over five octaves in frequency.

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