High-Power Couplers, Ceramic Windows, Antennas, Doorknob Transitions
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High-Power Couplers, Ceramic Windows, Antennas, Doorknob Transitions - 1

High-Power Couplers, Ceramic Windows, Antennas, Doorknob Transitions PMB designs and manufactures RF assemblies and subassemblies for research facilities and laboratories, as well as medical equipment manufacturers. The Challenge High-power couplers are generally a fundamental component of linear accelerating and superconducting structures in research and testing environments. They can also be described as complex devices which allow the transfer of power from the source to the cavity, without altering the cavity’s overall performance. They are the critical component linking the external environment with the cavity. Recent advances and breakthroughs in superconducting cavity technology have almost made cavity performances reach theoretical field limits. However, these experimental results can only be obtained if the entire environment is at a similar performance level. The ultrahigh vacuum and optimal thermal transitions challenges impose stringent design, manufacture, preparation, mounting and pre-conditioning processes. Usually, required performances in the research field are high and result from an optimal coordination between all the given interdependent parameters. High-power couplers have the following main functions:  Transferring the power from the source, the klystron, to the cavity  Matching the source impedance with the cavity impedance and avoiding power waste  Separating the source vacuum from the cavity vacuum (transition guaranteed by a RF ceramic window)  Limiting RF thermal dissipation with a thermal transition from the ambient to the cavity temperature Depending on the type of accelerating structure, the beam characteristics and the choice of technology, we can work together to choose the right design and manufacturing technique. Industry: Science, Research Technology: Ultra-High Vacuum / Brazing / Welding / Copper Coating Product & Services: High-Power Couplers / Doorknob Transitions / RF Window & Antenna / Cooled Double-Wall Tubes © PMB-

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High-Power Couplers, Ceramic Windows, Antennas, Doorknob Transitions - 2

We provide the ESS designing & prototyping partners IPN-Orsay and CEA Saclay with high-power RF couplers of 352.21 MHz and 704MHz and we are currently manufacturing 160 additional ones to be finished next year. The European Spallation Source (ESS) was established in 2015 and consists of a multidisciplinary research center, based on the world’s most powerful neutron source. These neutrons are produced in a superconducting and accelerating structure and then led through pulsed beams into research instruments. The final installation will be completed by 2015. We have worked with the CEA & IPNO...

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