Strip Test Database
STRIP46 – Bandpass characterization Tcryo (PS0101 - PWR3 blind)
General information
| Polarimeter | STRIP46 |
| Acquisition date | |
| Band | Q |
| Cryogenic? | Yes |
| Operators | Claudio Pincella |
| Description | Bandpass characterization Tcryo (PS0101 - PWR3 blind) |
| PHSW state | 0101 |
| Notes | The source data file was «SCI180207_105646 - STRIP46_Tcryo20K_RF_-40dBm_0101_V1_07Feb2018.txt» (446 kB) Two settings have been explored, so called “base” and “V1”, both trying to maintain a good balance among trans-conductances of the two legs, but with strong differences on the drain Id currents of the first couple of HEMTs (H0/Q1 and H1/Q6). We obtained easily a good balance and a satisfactory gain for both polarization settings. In particular the “V1” is presented here, that showed higher values and therefore a higher gain. |
| Author | claudio |
| Date of creation | |
| JSON record | Link |
- Download data file (99.7 KB)
HEMT biases
| HEMT | Vd [V] | Id [mA] | Vg [mV] |
|---|---|---|---|
| H0 (HA1) | 0.9 | 7.7 | 314.0 |
| H1 (HB1) | 0.9 | 10.47 | 56.0 |
| H2 (HA2) | 0.9 | 6.1 | 215.0 |
| H3 (HB2) | 0.9 | 4.0 | 100.0 |
| H4 (HA3) | 0.9 | 10.54 | 240.0 |
| H5 (HB3) | 0.9 | 10.88 | -40.0 |
Temperatures
| TA1 [K] | TA2 [K] | TB1 [K] | TB2 [K] | Tp1 [K] | Tp2 [K] | Tc1 [K] | Tc2 [K] | |
|---|---|---|---|---|---|---|---|---|
| 20.0 | 25.4 | 20.0 | 28.2 | 20.0 | 15.8 | 15.0 | 25.3 |
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