Microwave radiometers with channels in atmospheric windows, suitable for observation of surface parameters (ocean winds, snow properties, soil moisture, sea ice parameters) and also atmospheric phenomena such as rain, cloud particles.
- 10 GHz Microwave Polarimetric Radiometer
- 15 GHz Microwave Polarimetric Radiometer
- 19 GHz Microwave Polarimetric Radiometer
- 31 GHz Microwave Radiometer
- 37 GHz Microwave Polarimetric Radiometer
- 89 GHz Microwave Polarimetric Radiometer
- 89 GHz Microwave Dual Polarization Radiometer
- 340 GHz Microwave Dual Polarization Radiometer
10 GHz Microwave Polarimetric Radiometer
- Direct detection receiver with low noise amplifier in front end.
- Corrugated horn antenna
- Beam width: 10 degrees
- Center frequency: 10.65 GHz
- Frequency band: 500 MHz
- A ferrite polarizer is deployed in front end.
- Receiving polarizations: 0 degree, +/- 45 degrees
- Noise temperature: 300K
- Temperature resolution: 0.03 K @ 1sec INT
- Hermetic enclosure for the microwave unit.
- Scanning variant is available upon request.
15 GHz Microwave Polarimetric Radiometer
- Direct detection receiver with low noise amplifier.
- Corrugated horn antenna
- Beam width: 6.5 degrees
- Center frequency: 15.0 GHz
- Frequency band: 500 MHz
- A ferrite polarizer is deployed in front end.
- Receiving polarizations: 0 degree, +/- 45 degrees
- Noise temperature: 400K
- Temperature resolution: 0.03 K @ 1sec INT
- Hermetic enclosure for the microwave unit.
- Scanning variant is available upon request.
19 GHz Microwave Polarimetric Radiometer
- Direct detection receiver with low noise amplifier.
- Corrugated horn antenna
- Beam width: 6.5 degrees
- Center frequency: 89.0 GHz
- Frequency band: 2000 MHz
- A ferrite polarizer is deployed in front end.
- Receiving polarizations: 0 degree, +/- 45 degrees
- Noise temperature: 1000K
- Temperature resolution: 0.03 K @ 1sec INT
- Hermetic enclosure for the microwave unit.
- Scanning variant is available upon request.
31 GHz Microwave Radiometer
31 GHz Microwave Radiometer
The radiometer is a superheterodyne filter bank SSB receiver. A front end low noise amplifier is deployed. Channel center frequency, Fo, and frequency bandwidth are:
- Lens-corrugated horn antenna with 9.5 degrees beam width.
- Receiver noise temperature: 500 K
- Temperature resolution: 0.02-0.045 K @ 1 sec integration time constant.
- Radiometer consists of an internal reference load and noise source for periodic gain calibration.
| Fo (GHz) | 31.4 | 31.65 | 31.5 | |
| Band (MHz) | 200 | 300 | 1000 |
The radiometer is developed for installation in multi sensor scanning radiometric system Ground-based Scanning Radiometer (GSR). A stand alone scanning instrument with hermetic enclosure is available upon request.
37 GHz Microwave Polarimetric Radiometer
37 GHz Microwave Polarimetric Radiometer
- Center frequency: 37.0 GHz
- IF Frequency band: 2000 MHz (DSB Mode)
- A ferrite polarizer is deployed in front end.
- Receiving polarizations: 0 degree, +/- 45 degrees
- Noise temperature: 500K
- Temperature resolution: 0.02 K @ 1sec INT
- Beam width: 6.5 degrees
- Hermetic enclosure for the microwave unit.
- Scanning variant is available upon request.
- Dimensions and weight:
- Microwave unit - 600 x 180, 12.8 kg
- Power supply - 340 x 320 x 130 mm, 7.5 kg
- Scanning variant is available upon request.
The radiometer is ready to install on the Twin Otter aircraft. Supporting structure and fairing are available.
References:
- Wind dependences of brightness temperature measured by airborne Ka-band polarimeter during the Shoaling Waves Experiment. Irisov, V.G. Fedor, L.F. Leuski, V.L. Patten, B.P., Geoscience and Remote Sensing Symposium, 2002. IGARSS '02.
89 GHz Microwave Polarimetric Radiometer
89 GHz Microwave Polarimetric Radiometer
- Corrugated horn antenna
- Beam width: 10 degrees
- Center frequency: 89.0 GHz
- IF Frequency band: 2000 MHz (DSB Mode)
- A ferrite polarizer is deployed in front end.
- Receiving polarizations: 0 degree, +/- 45 degrees
- Noise temperature: 1000K
- Temperature resolution: 0.03 K @ 1sec integration time constant.
- Hermetic enclosure for the microwave unit.
89 GHz Microwave Dual Polarization Radiometer
- Two channel radiometer with antenna orthomode coupler.
- Lens-horn antenna.
- Beam width: 3.5 degrees
- Center frequency: 89.0 GHz
- IF Frequency band: 2000 MHz (DSB Mode)
- Noise temperature: 1000K
- Temperature resolution: 0.03 K @ 1sec integration time constant.
The radiometer is developed for installation in multi sensor scanning radiometric system Ground-based Scanning Radiometer (GSR). A stand alone scanning instrument with hermetic enclosure is available upon request.
References:
- Ground-based Scanning Radiometer (GSR)
- Microwave and Millimeter Wave Forward Modeling Results from the 2004 North Slope of Alaska Arctic Winter Radiometric Experiment E.R. Westwater, D. Cimini, M. Klein, and V. Leuski. (15th ARM Team Meeting Proceedings, Daytona Beach, Florida, March 14-18, 2005)
- Ground-based Scanning Radiometer measurements during the water vapor Intensive Operational Period 2004. D.Cimini, M.Klein, E.R.Westwater, V.Leuski. (15th ARM Team Meeting Proceedings, Daytona Beach, Florida, March 14-18, 2005)
340 GHz Microwave Dual Polarization Radiometer
340 GHz Microwave Dual Polarization Radiometer
- Two channel radiometer with grid polarization coupler.
- Lens-horn antenna.
- Beam width: 1.6 degrees
- Center frequency: 340.0 GHz
- IF Frequency band: 4500 MHz (DSB Mode)
- Noise temperature: 3000K
- Temperature resolution: 0.05 K @ 1sec integration time constant.
The radiometer is developed for installation in multi sensor scanning radiometric system Ground-based Scanning Radiometer (GSR). A stand alone scanning instrument with hermetic enclosure is available upon request.
References:
- Ground-based Scanning Radiometer (GSR)
- Microwave and Millimeter Wave Forward Modeling Results from the 2004 North Slope of Alaska Arctic Winter Radiometric Experiment E.R. Westwater, D. Cimini, M. Klein, and V. Leuski. (15th ARM Team Meeting Proceedings, Daytona Beach, Florida, March 14-18, 2005)
- Ground-based Scanning Radiometer measurements during the water vapor Intensive Operational Period 2004. D.Cimini, M.Klein, E.R.Westwater, V.Leuski. (15th ARM Team Meeting Proceedings, Daytona Beach, Florida, March 14-18, 2005)