Patent ID: 11962053
Assignee: SCHLEIFRING GMBH
Field: Telecommunications (Electrical engineering)
Classification: CPC H  A  G | IPC H

Claim 0:
1. A contactless datalink configured to transmit data between a stationary part and a rotatable part and configured to rotate around an axis of rotation, the datalink comprising a ring-shaped dielectric waveguide,
wherein:
(a) the ring-shaped dielectric waveguide includes a first dielectric waveguide component at the rotatable part and a second dielectric waveguide component at the stationary part;
(b) the ring-shaped dielectric waveguide has a center axis aligned with the axis of rotation;
(c) the ring-shaped dielectric waveguide has a gap between the first dielectric waveguide component and the second dielectric waveguide component;
(d) the first dielectric waveguide component includes a first rotatable waveguide section and a second rotatable waveguide section, each of the first and second rotatable waveguide sections having two corresponding rotatable waveguide section ends,
wherein a first end of the two corresponding rotatable waveguide section ends is connected to at least one of a first transmitter, a first receiver, and a first absorber and a second end of the two rotatable waveguide section ends is connected to at least one of a second transmitter, a second receiver, and a second absorber,
wherein corresponding first ends of the first and second rotatable sections are disposed close together and corresponding second ends of the first and second rotatable sections are disposed close together;

(e) the second dielectric waveguide component includes a first stationary waveguide section and a second stationary waveguide section, each of the first and secondary waveguides sections having two corresponding stationary waveguide section ends,
wherein a first end of the two corresponding stationary waveguide sections ends is connected to at least one of a third transmitter, a third receiver, and a third absorber and a second end of the two stationary waveguide sections ends is connected to at least one of a fourth transmitter, a fourth receiver, and a fourth absorber,
wherein corresponding first ends of the first and second stationary sections are disposed close together and corresponding second ends of the first and second stationary sections are disposed close together;

(f) the first end of the first stationary waveguide section is connected to a receiver of the third and fourth receivers and the first end of the second stationary waveguide section is connected to a transmitter of the third and fourth transmitters;
(g) the second ends of the first and second stationary sections are terminated by the third and fourth absorbers, respectively,
(h) the first end of the first rotatable waveguide section and the second end of the second rotatable waveguide section are connected by a first 3 dB coupler to a transmitter of the first and second transmitters;
and
(i) the second end of the first rotatable waveguide section and the first end of the second rotatable waveguide section are connected by a second 3 dB coupler to a receiver of the first and second receivers.