Microwave Readout Module
Measurement Infrastructure
Preassembled Microwave Readout Module with a TWPA and all the connected microwave components needed to amplify very weak microwave signals.
The Microwave Readout Module is designed to perform near-quantum-limited amplification of signals at millikelvin temperatures.
Preassembled and easily integrated into Bluefors Dilution Refrigerator Measurement Systems, the module includes a traveling wave parametric amplifier (TWPA) and all the connected microwave components needed for a readout line setup.
It offers a wide band of frequencies, supporting multiplexed qubit readouts. The solution can also be used for superconducting sensor and detector readouts. The module provides a high signal-to-noise ratio and reliable performance.
Product Highlights
1.0
Microwave Readout Module
Measurement Infrastructure
Component List
2.0
Microwave Readout Module
Measurement Infrastructure
Microwave Readout Module Package
The Microwave Readout Module package consists of:
- Traveling wave parametric amplifier (mK stage)
- Low-noise HEMT amplifier (4K stage)
- RF wiring kit that includes attenuated pump and readout lines
- Filtering and isolation microwave components
- Parametric amplifier cold-finger assembly with dual magnetic shield
- Filtered DC lines for TWPA flux bias control.
Microwave Readout Module Schematic
Technical Specifications
3.0
Microwave Readout Module
Measurement Infrastructure
Performance Characteristics
| Parameter | Guaranteed | Expected |
| Gain bandwidth | 5 GHz to 7 GHz | 4 GHz to 8 GHz |
| Gain in 80% of band | 11 dB | 15 dB |
| Added noise in 95% of band | <918 mK | ~300 mK |
| Gain ripple within 200 MHz window | <5 dB | <5 dB |
| SNR improvement * | 9 dB |
Technical Specifications
| Parameter | Value |
| Pump frequency | 9 GHz to 13 GHz |
| Pump power | −60 dBm to −55 dBm |
| DC current in flux line | 600 µA to 800 µA |
| Dynamic range (input signal power at 1 dB compression point of 15 dB gain) | −100 dBm |
TWPA Gain and Added Noise Chart
Technical Requirements
4.0
Microwave Readout Module
Measurement Infrastructure
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