US 12,444,825 B2
Dielectric filter, and AU, RU or BS having the same
Yuhua Xiao, Beijing (CN); Juandi Song, Beijing (CN); and Ying Li, Beijing (CN)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 18/022,229
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 13, 2021, PCT No. PCT/CN2021/112559
§ 371(c)(1), (2) Date Feb. 20, 2023,
PCT Pub. No. WO2022/042339, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. PCT/CN2020/111853 (WO), filed on Aug. 27, 2020.
Prior Publication US 2023/0327313 A1, Oct. 12, 2023
Int. Cl. H01P 1/213 (2006.01); H01P 1/20 (2006.01); H01P 7/10 (2006.01)
CPC H01P 7/105 (2013.01) [H01P 1/2002 (2013.01); H01P 1/213 (2013.01); H01P 1/2138 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A dielectric filter with a first radio frequency (RF) passband and a second RF passband, comprising a body with a plurality of resonators including a first resonator, a second resonator and a common resonator, wherein the common resonator is coupled under its first resonance mode to the first resonator to provide the first RF passband, and is coupled under its second resonance mode to the second resonator to provide the second RF passband.