Rotary transmission system using a waveguide
AssigneeSchleifring GmbH
InventorsChristian Panhans, Reinhard Stolle
Life of this patent
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Abstract
A coupler provides a high speed datalink between rotating parts and comprises a circular channel, enclosing a hollow-cylindric volume, and at least two antennas. The circular channel is made of electrically conductive material and includes an inner ring, an outer ring rotatable against the inner ring, and two sidewalls on the sides of the rings. An inner antenna is mechanically coupled to the inner ring and an outer antenna is mechanically coupled to the outer ring. The antennas are configured to establish a microwave signal connection between them based on multiple reflections of an electromagnetic wave at the rings.
Claims20
A rotary joint providing a high speed datalink between rotatable parts comprising a circular channel,
- wherein the circular channel includes:
- an inner ring and an outer ring,
- both the inner and outer rings being centered about a common rotation axis and being rotatable against each other,
- the outer ring having a larger diameter than that of the inner ring,
- a first sidewall located axially on one side of the inner and outer rings and a second sidewall opposing the first sidewall and located axially on the other side of the inner and outer rings,
- wherein the inner ring is mounted to the first sidewall and
- the outer ring is mounted to the second sidewall,
- an inner antenna mechanically coupled to the inner ring, and
- an outer antenna mechanically coupled to the outer ring;
- wherein the inner antenna and the outer antenna are directed into a space between the inner ring and the outer ring and configured for a microwave signal connection between the inner and outer antennae;
- and
- wherein the rotary joint has a first gap between the inner ring and the second sidewall and a second gap between the outer ring and the first sidewall.
A rotary joint providing a high speed datalink between rotatable parts comprising a circular channel, wherein the circular channel includes:
- an inner ring and an outer ring,
- both the inner and outer rings being centered about a common rotation axis and being rotatable against each other,
- the outer ring having a larger diameter than that of the inner ring,
- an inner antenna mechanically coupled to the inner ring, and
- an outer antenna mechanically coupled to the outer ring;
- wherein
- the inner antenna and the outer antenna are directed into a space between the inner ring and the outer ring and configured for a microwave signal connection between the inner and outer antennae;
- wherein at least one of the first sidewall and the second sidewall includes a material configured to absorb and/or reflect a microwave signal or includes a combination of a material configured to absorb the microwave signal and a conductive surface, said material configured to absorb the microwave signal being mounted on the conductive surface.
A rotary joint providing a high speed datalink between rotatable parts comprising a circular channel, wherein the circular channel includes:
- an inner ring and an outer ring,
- both the inner and outer rings being centered about a common rotation axis and being rotatable against each other,
- the outer ring having a larger diameter than that of the inner ring,
- an inner antenna mechanically coupled to the inner ring, and
- an outer antenna mechanically coupled to the outer ring;
- wherein
- the inner antenna and the outer antenna are directed into a space between the inner ring and the outer ring and configured for a microwave signal connection between the inner and outer antennae;
- wherein the circular channel defines a width between the first and second sidewalls and a height between the inner and outer rings,
- wherein at least one wavelength of the microwave signal is shorter than two times the larger of the width and the height, and
- wherein the at least one wavelength of the microwave signal is shorter than ⅓ and/or ⅕ and/or 1/10 and/or 1/20 and/or 1/50 and/or 1/100 of the larger of the width and the height.
Dependencies are inferred from the claim text.