Specifications

The figure on the top shows a schematic drawing of the inner radiometer components, illustrated as an example for the 21.0 GHz radiometer. The optical section is optimized for a beam of approximately 5.0° HPBW for all channels. At 10.65 GHz the beam is formed by a combination of corrugated feed horns and off-axis parabola antenna while at 21.0 and 36.5 GHz a corrugated feed with aperture lens is sufficient to achieve the desired beam width. The corrugated feed horns offers a low cross polarization level and a rotationally symmetric beam pattern. The receivers are integrated together with their feeds and lenses and are thermally insulated to achieve a high thermal stability with an accuracy of <0.05 K over the whole operating temperature range (-30° C to +40° C). A radiometer resolution lower than 0.2° C RMS @ 1.0 sec integration time is achieved with an absolute system stability of 1.0 K. A complete description is provided in the manual.

	Band A	Band B	Band C
Frequency [GHz]	10.65	21.0	36.5
Number of channels	2	2	2
Polarization	H & V	H & V	H & V
Receiver Type	SSB	SSB	SSB
Noise Temperature [K]	<500	<500	<500
Beam width [°]	~5.0	~5.0	~5.0
Channel bandwith [MHz]	400.0	400.0	400.0

Seite erstellt von Alessandro Battaglia
Letzte Änderung: 18.07.2007

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Specifications