Radiometer Front-Ends
Standard Features:- 18 to 110 GHz coverage
- Low DSB noise figure
- Single or dual input channels
- 30 to 60 dB RF to IF gain
- 110 K typ noise injection
- Down conversion and direct-detect systems
Spacek Labs Radiometer Front-ends are available in frequencies from 18 to 110 GHz. Our Radiometers are offered in bandwidths spanning a frequency range from less than 1 GHz to 10 GHz. We typically use a dual junction isolator at the input followed by a 20 dB cross-guide coupler. A noise source requiring about 15 mA of bias is on the coupled arm. This assembly feeds one of our low noise receivers. While we offer a lineup of standard Radiometer designs, we more often are designing and building systems to meet our customers needs whether those needs are to fit their electrical, mechanical or pricing requirements.
Model Number | Input Freq. (GHz) | RF to IF Gain (dB) | Application | Noise Figure | Connectors |
---|---|---|---|---|---|
R23.8-U | 23.8 | 60 | Water Vapor | 3.5 | WR-42 |
R20.7-U | 20.7 | 60 | Water Vapor | 3.5 | WR-42 |
R20.7-U | 20.7 | 60 | Water Vapor | 3.5 | WR-42 |
R55-U | 51 - 59 | 60 | Temperature Profiler | 5 | WR-15 |
R31.4-U | 31.4 | 60 | Water Vapor | 3.5 | WR-28 |
R89-U | 88 - 90 | 60 | Water Vapor | 6 | WR-10 |