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electronics:rx:techinfo:documentation_q-band_rx_s7mm
This is an old revision of the document!
Technical Documentation of the Q-Band Receiver 33 -50 GHz (S7mm)
| Type | HEMT cooled | ||
| Channels | 8 | (upper/lower band of 2 polarizations in 2 horns each) | |
| Receiver Noise | 30-50K | depending on frequency band: channels 1&2 (horn A; offset horn) and channels 3&4 (horn B; main offset) | |
| Frequency range | 33 GHz - 50 GHz | (for details see conversion plan) | |
| Polarization | LHC/RHC | 2 horns | |
| Calibration | Noise diode | noise figures for high channels low channels | |
| 1. IF | 5 - 10 GHz | (Synthesizer 1 = 10.75 - 13.75 GHz x 4) | |
| 2. IF | 0 - 4 GHz | lower band (Synthesizer 21 = 10 GHz) | |
| 0 -2.5GHZ | upper band (Synthesizer 22 = 5 GHz) | ||
| Synth.1 frequency for fsky at center of: | 4 GHz IF | 2.5 GHz IF | 300 MHz IF | 0.5-1 GHz IF | |
| Highband (Ch.1, 3, 5, 7): fsynth.1 = | (fsky + 8.0GHz)/4 | (fsky + 8.75GHz)/4 | (fsky + 9.85GHz)/4 | (fsky + 9.25GHz)/4 | |
| Lowband (Ch.2, 4, 6, 8): fsynth.1 = | (fsky + 6.25GHz)/4 | (fsky + 5.15GHz)/4 | (fsky + 5.75GHz)/4 | ||
Simplified Block Diagram of the complete receiver, (RK on 19.3.2019)
Detailed Block Diagram of the Frontend including 1st IF (RK on 23.10.2018)
electronics/rx/techinfo/documentation_q-band_rx_s7mm.1617701062.txt.gz · Last modified: 2021/04/06 11:24 by rkeller
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