US 11,721,878 B2
Filters having resonators with negative coupling
Stefano Tamiazzo, Milan (IT)
Assigned to CommScope Italy S.r.l., Agrate Brianza (IT)
Filed by CommScope Italy S.r.l., Agrate Brianza (IT)
Filed on Nov. 1, 2021, as Appl. No. 17/515,697.
Application 17/515,697 is a continuation of application No. 16/683,573, filed on Nov. 14, 2019, granted, now 11,223,094.
Claims priority of provisional application 62/796,809, filed on Jan. 25, 2019.
Claims priority of provisional application 62/779,687, filed on Dec. 14, 2018.
Prior Publication US 2022/0059914 A1, Feb. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01P 1/205 (2006.01); H01P 1/213 (2006.01); H01P 7/04 (2006.01); H01P 7/06 (2006.01)
CPC H01P 1/205 (2013.01) [H01P 1/213 (2013.01); H01P 1/2133 (2013.01); H01P 7/04 (2013.01); H01P 7/065 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A filter device, comprising:
a plurality of low-band resonators; and
a plurality of high-band resonators, wherein a first and a second of the plurality of high-band resonators each extend in a first direction, and wherein a first resonator head of the first of the plurality of high-band resonators is capacitively coupled to a second resonator head of the second of the plurality of high-band resonators, and wherein the first resonator head oppositely faces the second resonator head in the first direction.