US Patent 11350537 Electrical feedthrough assembly

Various embodiments relate to an electrical feedthrough assembly an elongate conductor and a collar at least partially surrounding the elongate conductor along a portion of a length of the elongate conductor. The collar can be composed of a material having a thermal conductivity of at least 170 W/(m-K). A shell can be disposed around the collar. At one or more operating frequencies, at least a portion of a length of the electrical feedthrough assembly can be selected to provide at least one quarter wave transform.