Multi-Channel Microwave Generator
Henriqson Accordi, Yuri (2024)
2024
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2024060320001
https://urn.fi/URN:NBN:fi:amk-2024060320001
Tiivistelmä
In the most popular Quantum Computing architecture, weak microwave signals are used to measure and change the state of artificial quantum systems, such as superconducting qubits that are used to perform specific calculations. Quantum limited amplifiers, such as Joseph Parametric Amplifier (JPA) and Traveling Wave Parametric Amplifier (TWPA) are used as first stage amplifiers in a readout amplification chain, allowing the increase in amplitude of the probing signal to be higher than the noise floor of the room temperature electronics. This kind of amplifiers require a strong microwave signal to operate (10 – 14GHz strong signal).
As quantum systems increase in number of qubits, followed by the same amount of pre-amplification stage, the same happens for strong microwave signals. A thorough search was conducted to find a scalable and reliable microwave source device, but the expensive prices found are an obstacle. This thesis, commissioned by Bluefors Oy, endeavors to contribute to this demand by developing an economically viable solution designed to provide multiple microwave signal outputs within the frequency range of 10 MHz to 15 GHz and power levels spanning from -40 dBm to +10 dBm. The chosen microwave synthesizer module, called Valon5015, allows the configuration of frequency, power, reference, and on/off status through a user-friendly Graphical User Interface (GUI). Alternatively, these parameters can be controlled through a driver adhering to the Standard Commands for Programmable Instruments (SCPI) protocol, enhancing the device's versatility and adaptability to diverse operational requirements.
Throughout the thesis, emphasis is placed on overcoming mechanical and electrical design challenges to ensure the security and reliability of the Multi-Channel Microwave Generator. The culmination of these efforts is manifested in the Multi-Channel Microwave Generator, featuring up to eight RF outputs. This achievement not only validates the successful resolution of design challenges but also positions the device as a valuable asset for researchers and practitioners seeking a cost-effective and reliable solution for the generation of reliable microwave signals in quantum computing and related fields.
As quantum systems increase in number of qubits, followed by the same amount of pre-amplification stage, the same happens for strong microwave signals. A thorough search was conducted to find a scalable and reliable microwave source device, but the expensive prices found are an obstacle. This thesis, commissioned by Bluefors Oy, endeavors to contribute to this demand by developing an economically viable solution designed to provide multiple microwave signal outputs within the frequency range of 10 MHz to 15 GHz and power levels spanning from -40 dBm to +10 dBm. The chosen microwave synthesizer module, called Valon5015, allows the configuration of frequency, power, reference, and on/off status through a user-friendly Graphical User Interface (GUI). Alternatively, these parameters can be controlled through a driver adhering to the Standard Commands for Programmable Instruments (SCPI) protocol, enhancing the device's versatility and adaptability to diverse operational requirements.
Throughout the thesis, emphasis is placed on overcoming mechanical and electrical design challenges to ensure the security and reliability of the Multi-Channel Microwave Generator. The culmination of these efforts is manifested in the Multi-Channel Microwave Generator, featuring up to eight RF outputs. This achievement not only validates the successful resolution of design challenges but also positions the device as a valuable asset for researchers and practitioners seeking a cost-effective and reliable solution for the generation of reliable microwave signals in quantum computing and related fields.