US 12,230,856 B2
Waveguide device and antenna
Roland Baur, Koenigsfeld (DE); and Steffen Wälde, Niedereschach (DE)
Assigned to VEGA Grieshaber KG, Wolfach (DE)
Filed by VEGA Grieshaber KG, Wolfach (DE)
Filed on Oct. 16, 2020, as Appl. No. 17/072,826.
Claims priority of application No. 19205063 (EP), filed on Oct. 24, 2019.
Prior Publication US 2021/0126334 A1, Apr. 29, 2021
Int. Cl. H01P 3/12 (2006.01); G01S 7/03 (2006.01); G01S 13/88 (2006.01); H01P 1/02 (2006.01)
CPC H01P 3/122 (2013.01) [G01S 7/032 (2013.01); G01S 13/885 (2013.01); H01P 1/022 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A waveguide arrangement for guiding electromagnetic waves, comprising:
a rectangular waveguide; and
a circular waveguide configured to output the electromagnetic waves to a free space through a free end,
wherein the rectangular waveguide merges into the circular waveguide in a transition section at an angle of transition, the circular waveguide is filled with a dielectric filling, and the dielectric filling projects into the rectangular waveguide in the transition section.