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US 11,962,053 B2Granted
Rotary joint with dielectric waveguide
AssigneeSchleifring GmbH
InventorsNils Krumme, Holger Steffens
Life of this patent
Estimating the term…
Abstract
A contactless datalink for transmission of data between a rotatable part and a stationary part, including a dielectric waveguide split into two sections. A first dielectric waveguide section is at the rotatable part and a second dielectric waveguide section is at the stationary part. The first dielectric waveguide section is coupled to a transmitter and the second dielectric waveguide section is coupled to a receiver.
Claims14
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.
12 more elements
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 includes a center axis aligned with the axis of rotation;
- (c) the ring-shaped dielectric waveguide includes a gap between the first dielectric waveguide component and the second dielectric waveguide component;
- (d) the first dielectric waveguide component includes at least one rotatable waveguide section, the at least one t rotatable waveguide section having two rotatable waveguide section ends,
- wherein one end of said two rotatable waveguide section ends is connected to at least one of a first transmitter, a first receiver, and a first absorber and the other end of said two rotatable waveguide section ends is connected to at least one of a second transmitter, a second receiver, and a second absorber;
- (e) the second dielectric waveguide component includes at least one stationary waveguide section, the at least one stationary waveguide section having two stationary waveguide section ends,
- wherein one end of said two stationary section ends is connected to at least one of a third transmitter, a third receiver, and a third absorber and the other end of said two stationary section ends is connected to at least one of a fourth transmitter, a fourth receiver, and a fourth absorber;
- wherein one end of said at least one rotatable waveguide section is connected to a transmitter of the first and second transmitters and the other end of said at least one rotatable waveguide section is connected to a receiver of the first and second receivers;
- and
- wherein one end of said stationary waveguide section is connected to a transmitter of the third and fourth transmitters, and the other end of said stationary waveguide section is connected to a receiver of the third and fourth receivers.
8 more elements
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 includes a center axis aligned with the axis of rotation;
- (c) the ring-shaped dielectric waveguide includes a gap between the first dielectric waveguide component and the second dielectric waveguide component;
- (d) the first dielectric waveguide component includes at least one rotatable waveguide section, the at least one t rotatable waveguide section having two rotatable waveguide section ends,
- wherein one end of said two rotatable waveguide section ends is connected to at least one of a first transmitter, a first receiver, and a first absorber and the other end of said two rotatable waveguide section ends is connected to at least one of a second transmitter, a second receiver, and a second absorber;
- (e) the second dielectric waveguide component includes at least one stationary waveguide section, the at least one stationary waveguide section having two stationary waveguide section ends,
- wherein one end of said two stationary section ends is connected to at least one of a third transmitter, a third receiver, and a third absorber and the other end of said two stationary section ends is connected to at least one of a fourth transmitter, a fourth receiver, and a fourth absorber;
- wherein the at least one rotatable waveguide section is coupled to a transmitter of the first and second transmitters, and the at least one stationary waveguide section is coupled to a receiver of the third and fourth receivers;
- and
- wherein a width of the gap between the first and second dielectric waveguide components is in a range from 1/10th to ⅙th of a wavelength of a signal wave to be transmitted in air.
8 more elements
A contactless datalink configured to transmit data between a rotatable part and a stationary part, the datalink comprising:
- a closed-loop dielectric waveguide,
- at least one stationary coupler,
- at least one rotatable coupler,
- at least one stationary transceiver coupled to the at least one stationary coupler,
- and
- at least one rotatable transceiver coupled to the at least one rotatable coupler,
- wherein said contactless datalink is configured to operate at an operating frequency within the EHF band or at an operating frequency between 2.4 GHz and 30 GHz.
4 more elements
Dependencies are inferred from the claim text.