US 12,327,904 B2
Triple-mode resonator and a waveguide filter comprising the same
Honglan Wang, Beijing (CN); and Haitao Liu, Beijing (CN)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/022,317
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 16, 2020, PCT No. PCT/CN2020/115656
§ 371(c)(1), (2) Date Feb. 21, 2023,
PCT Pub. No. WO2022/056739, PCT Pub. Date Mar. 24, 2022.
Prior Publication US 2023/0335879 A1, Oct. 19, 2023
Int. Cl. H01P 7/10 (2006.01); H01P 1/208 (2006.01)
CPC H01P 7/105 (2013.01) [H01P 1/2086 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A triple-mode resonator, comprising:
a main body made of a dielectric material and having a cuboid shape defining three orthogonal axes (x, y, z) substantially aligned with faces of the main body; and
a conductive coating covering all of the main body except portions of the faces of the main body which defines at least one coupling aperture through which a signal can be coupled into and/or out of the main body,
wherein the at least one coupling aperture has a closed shape comprising a first and a second main edges extending along two of the axes respectively and a third main edge extending neither parallel nor perpendicular to the first and second main edges, a general shape and size and location of the at least one coupling aperture is mainly determined by the first, second and third main edges, and the at least one coupling aperture is configured in such a manner that desired three dominant resonance modes can be excited independently in the resonator by an input signal introduced therethrough, and wherein the third main edge is in the form of an arc segment.