Controlled-impedance cable termination with compensation for cable expansion and contraction

A controlled-impedance cable termination for a controlled-impedance cable, the cable comprising at least one center conductor, a dielectric surrounding the at least one center conductor, and a ground shield surrounding the dielectric, the termination comprising:

• (a) an electrically-conductive anchor block having a face and at least one ferrule bore, the ferrule bore having an opening in the face, the anchor block adapted to be electrically connected to the cable ground shield;
• (b) a dielectric insert adapted to be installed in the ferrule bore, the dielectric insert having a dielectric insert bore;
• and
• (c) an electrically-conductive center pin adapted to be installed in the dielectric insert bore, the center pin having a center pin bore adapted to electrically receive the cable center conductor such that the center conductor can slide in the center pin bore while maintaining electrical contact with the center pin as it expands and contracts, the center pin having a face that is planar with the anchor block face when installed in the dielectric insert bore.

A controlled-impedance cable termination assembly comprising:

• (a) at least one controlled-impedance cable having at least one center conductor, a dielectric surrounding said center conductor, and a ground shield surrounding said dielectric;
• (b) an electrically-insulative anchor block having a face and at least one cable through hole, the cable through hole having an opening in the face;
• (c) an electrically-conductive ferrule having a face and a ferrule bore, the ferrule electrically attached to the cable ground shield, and the ferrule installed in the cable through hole;
• (d) a dielectric insert in the ferrule bore, the dielectric insert having a dielectric insert bore;
• and
• (e) an electrically-conductive center pin in the dielectric insert bore, the center pin having a face planar with the ferrule face and a center pin bore electrically receiving the cable center conductor such that the center conductor can slide in the center pin bore while maintaining electrical contact with the center pin as it expands and contracts.

A controlled-impedance cable termination assembly comprising:

• (a) at least one controlled-impedance cable having at least one center conductor, a dielectric surrounding said center conductor, and a ground shield surrounding said dielectric;
• (b) an electrically-conductive anchor block having a face and at least one ferrule bore, the ferrule bore having an opening in the face, the anchor block being electrically attached to the cable ground shield;
• (c) a dielectric insert in the ferrule bore, the dielectric insert having a dielectric insert bore;
• and
• (d) an electrically-conductive center pin in the dielectric insert bore, the center pin having a center pin bore electrically receiving the cable center conductor such that the center conductor can slide in the center pin bore while maintaining electrical contact with the center pin as it expands and contracts, the center pin having a face that is planar with the anchor block face.