US 12,230,857 B2
Radar waveguide and choke assembly
Ricardo Andres Perez Benitez, Auckland (NZ); Michael Cann, Auckland (NZ); Lindsay Lilburn, Auckland (NZ); and Cameron Malcolm Arthur, Auckland (NZ)
Assigned to Navico, Inc., Tulsa, OK (US)
Filed by NAVICO, INC., Tulsa, OK (US)
Filed on Nov. 30, 2021, as Appl. No. 17/537,781.
Prior Publication US 2023/0170596 A1, Jun. 1, 2023
Int. Cl. H01P 3/123 (2006.01); H01P 1/208 (2006.01)
CPC H01P 3/123 (2013.01) [H01P 1/2088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for limiting radio-frequency power leakage, the system comprising: a first component having a first surface and a first waveguide that defines a first cavity; a second component having a second surface and a second waveguide that defines a second cavity; and a first groove that is configured to act as a choke, wherein the first component and the second component are assembled so that an air gap is maintained between the first waveguide and the second waveguide, wherein the first waveguide and the second waveguide are configured to facilitate transmission of radio-frequency power, wherein the first groove is configured to reduce leakage of radio-frequency power through the air gap by (1) redirecting radio-frequency power from the first groove back towards the first waveguide and the second waveguide, or (ii) combining electromagnetic waves of the radio-frequency power destructively in the first groove, and wherein the first groove is defined in the first surface or the second surface.