===Technical Documentation of the Ku-Band Receiver 12 - 18 GHz (S20mm)===

||Type|HEMT cooled| ||
||Channels|8 |(upper/lower band of 2 polarizations in 2 horns each)||
||Receiver Noise|<15K | ||
||Frequency range|12 GHz - 18 GHz | ||
||Polarization|LHC/RHC | 2 horns||
||Calibration|Noise diode|  ||
||1. IF|5 - 10 GHz |(Synthesizer 1 = 22 - 23 GHz)||
||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|fsky + 8.75GHz|fsky + 9.85GHz|fsky + 9.25GHz||
||Lowband (Ch.2, 4, 6, 8): fsynth.1 =| |fsky + 6.25GHz|fsky + 5.15GHz|fsky + 5.75GHz||

{{:electronics:rx:techinfo:bsb_Ku-band_neu_web.jpg?1300|}}

Simplified {{:electronics:rx:techinfo:bsb_Ku-band_neu_web.pdf|Block Diagram}} of the complete receiver, (RK on 19.3.2019)

{{:electronics:rx:techinfo:ku-band_1-konverter.pdf|Block Diagram}} of the 1st IF conversion, (CK on 8.3.2019)

{{:electronics:rx:techinfo:ku-band_2-konverter.pdf|Block Diagram}} of the 2nd IF conversion, (CK on 8.3.2019)

S20MM-KU Band Receiver {{:electronics:elsystemgruppenwiki:ku_band_receiver_signal_flow.pdf|Signal flow Diagram}}.

S20MM-Channel Exchange:The Channel connection in patchboard has been exchanged because of the lower power output from RCP of main horn.
And therefore the channels arrangement are changed.Please open the link to see the {{:electronics:elsystemgruppenwiki:s20mm_channels_exchange.pdf|arrangements}}.