Dummy load for high power and high bandwidth
AssigneeRohde & Schwarz GmbH & Co. KG
InventorBernhard Kaehs
Life of this patent
Estimating the term…
Abstract
A dummy load for high power and high bandwidth, the dummy load comprising a base plate, a resistive termination acting as a resistive load for dissipating radio frequency power at low frequencies, and at least one coaxial cable acting as a cable load for dissipating radio frequency power at high frequencies, the at least one coaxial cable being connected to the resistive termination. At least one of the resistive termination and the at least one coaxial cable is positioned on the base plate. The at least one coaxial cable has a cross section that varies over the length of the coaxial cable.
Claims18
A dummy load for high power and high bandwidth, said dummy load comprising:
- a base plate, a groove being provided in said base plate,
- a resistive termination acting as a resistive load for dissipating radio frequency power at low frequencies,
- at least one coaxial cable acting as a cable load for dissipating radio frequency power at high frequencies, said at least one coaxial cable having a cross section that varies over the length of said coaxial cable, wherein said at least one coaxial cable is connected to said resistive termination, said at least one coaxial cable being placed in said groove,
- at least one of said resistive termination or said at least one coaxial cable being positioned on said base plate,
- wherein said groove has curvatures, said groove being widened in the curvatures such that said groove has an expansion space for said at least one coaxial cable in the curvatures, said expansion space being used by the thermally expanding coaxial cable during operation.
A dummy load for high power and high bandwidth, said dummy load comprising:
- a base plate,
- a resistive termination acting as a resistive load for dissipating radio frequency power at low frequencies,
- at least one coaxial cable acting as a cable load for dissipating radio frequency power at high frequencies, said at least one coaxial cable being connected to said resistive termination, said resistive termination and said at least one coaxial cable being positioned on said base plate, said at least one coaxial cable having a cross section that varies over the length of said coaxial cable,
- a thermally conductive pad for heat dissipation, said pad being positioned on said at least one coaxial cable such that said at least one coaxial cable is at least partially covered by said pad, and
- at least one cover being connected to said base plate such that said resistive termination and said at least one coaxial cable are accommodated between said at least one cover and said base plate, said at least one cover pressing said thermally conductive pad onto said at least one coaxial cable, said thermally conductive pad being positioned between said at least one coaxial cable and said at least one cover.
A dummy load for high power and high bandwidth, said dummy load comprising:
- a base plate,
- a resistive termination acting as a resistive load for dissipating radio frequency power at low frequencies,
- at least one coaxial cable acting as a cable load for dissipating radio frequency power at high frequencies, said at least one coaxial cable being connected to said resistive termination, said at least one coaxial cable being arranged in a helical manner within a groove formed in said base plate,
- a thermally conductive pad for heat dissipation, said pad being positioned on said at least one coaxial cable such that said at least one coaxial cable is at least partially covered by said pad, and
- at least one cover being connected to said base plate such that said resistive termination and said at least one coaxial cable being accommodated between said at least one cover and said base plate, said at least one cover pressing said thermally conductive pad onto said at least one coaxial cable, said thermally conductive pad being positioned between said at least one coaxial cable and said at least one cover.
Dependencies are inferred from the claim text.