Patent ID: 11936090
Assignee: ROSENBERGER HOCHFREQUENZTECHNIK GMBH & CO KG
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC F  G  H

Claim 19:
20. A waveguide transition for a waveguide assembly for transmitting an electromagnetic wave between a first waveguide and a second waveguide, the waveguide transition comprising:
a dielectric multi-mode waveguide, that has a dielectric waveguide piece between the first waveguide and the second waveguide; and wherein
the dielectric waveguide piece is able to run a lesser number of modes, at least in a front section that is facing the first waveguide, than the number of modes that may be run in the second waveguide, and wherein
in order to reduce the excitation of higher modes in the transition from the first waveguide to the second waveguide, and to enable a multi-mode transmission in the second waveguide without modal dispersion,
the front section of the dielectric waveguide piece has a reduced cross-section with respect to the second waveguide;

the front section of the dielectric waveguide has a reduced permittivity of a dielectric core material with respect to the second waveguide, and/or
the front section of the dielectric waveguide piece has an increased permittivity of a sheath, which encases the dielectric core material, with respect to the second waveguide.