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1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

S-parameters live measurement for the multiport RF components: applications to the circulator and the LIPAc RFQ cavity

TUPS154
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC4.A08 Linear Accelerators Tuesday Poster Session

Speaker

Kouki Hirosawa (National Institutes for Quantum Science and Technology)

Description

In general, it is not easy to measure the drifting RF properties of a device during its operation. If the scatter matrix changes depending on the temperature, the vector network analyzer provides only a static or a starting point of the thermal development. In particular, it is impossible to fully characterize the component that has more than two ports only by the online measurement. So, in the model proposed, assuming that the heat source defined as the average dissipation is given by stored power in the device and the duty cycle, preliminary measurements for several average dissipations are performed. Analytical solutions are derived by using the preliminary and online measurement for the same average dissipation based on the input-output power pickups. As study case, the method is applied to the circulators and the RFQ of the Linear IFMIF Prototype Accelerator, for the three-port and eight-port device case respectively. The model, the results of experiments, and discussions will be summarized in this report.

Region represented Asia
Paper preparation format Word

Author

Kouki Hirosawa (National Institutes for Quantum Science and Technology)

Co-authors

Andrea De Franco (National Institutes for Quantum Science and Technology) Francesco Scantamburlo (IFMIF/EVEDA Project Team) Ivan Moya (Fusion for Energy) Jean-Pierre Adam (Fusion For Energy) Kouhiro Ishimura (IFMIF/EVEDA Project Team) Luis Gonzalez Gallego Sanchez Camacho (Consorcio IFMIF-DONES España) Naoya Kubo (National Institutes for Quantum Science and Technology)

Presentation materials

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