A contactless radio frequency rotary joint and a method to assemble the same

Abstract

A contactless radio frequency (RF) rotary joint 100 is disclosed. The contactless RF rotary joint includes a circular structure 102 with a hollow central bore 104. The circular structure includes a circular ring 106, a shielding surface 110, and a dielectric medium 112. The circular ring is positioned on a face of the circular structure with an opening 108. The opening is adapted to adjust to a frequency of operation of a RF rotary joint and a reflection loss corelated to width and thickness of the circular ring. The shielding surface is adapted to fit inside the circular ring with a predefined gap from the circular ring. The shielding surface is configured to keep the impedance within a preferred value and acts as a base for stacking of multiple circular structures. The dielectric medium formed in-between the circular ring and adapted to define size of the central bore.

Dependencies are inferred from the claim text.