Power Couplers

Product Bulletins

Power couplers are critically important components in all superconducting accelerators. Power couplers provide the vacuum and thermal interface between the evacuated superconducting cavity, which is typically kept at 4 K, and the room temperature waveguide components. Power couplers transmit microwaves generated by the high-power microwave source, typically a klystron. Power couplers must be extraordinarily clean and reliable to ensure that they meet the stringent requirements of superconducting accelerators.

CPI BMD's power couplers are manufactured to its customer’s specifications using processes which are standard to the electron device industry, as well as processes which are specific to power couplers. CPI BMD has developed the capability of plating high RRR copper on stainless steel. Plating is done in-house under carefully controlled conditions. CPI BMD's high RRR copper plating has been qualified by Cornell and DESY. CPI BMD has developed the capability of applying TiN coatings to ceramic windows. TiN coating is done in-house under carefully controlled conditions. CPI BMD's TiN coating process has been qualified at DESY.

CPI BMD has extensive experience working with the world’s best accelerator scientists and engineers to fabricate power couplers for superconducting accelerators. CPI BMD has found that having its engineers involved in the design process early-on helps to ensure that the power couplers are manufacturable.

Examples of some of CPI BMD’s many power couplers are described in data sheets which are accessible through the Product Bulletins (see link at top of page). Please contact CPI BMD for your specific requirements.
Tel: +1 (978) 922-6000 or +1 (978) 922-6004
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Papers describing CPI BMD’s capabilities relevant to power couplers can be found in the Technical Library on this website.