US 11,843,152 B2
Surface mount microstrip circulators using a ferrite and ceramic dielectric assembly substrate
Iain Alexander Macfarlane, Insch (GB); Scott David Wilson, Cork (IE); David Bowie Cruickshank, Rockville, MD (US); and Michael David Hill, Emmitsburg, MD (US)
Assigned to SKYWORKS SOLUTIONS, INC., Irvine, CA (US)
Filed by SKYWORKS SOLUTIONS, INC., Irvine, CA (US)
Filed on Dec. 2, 2021, as Appl. No. 17/540,522.
Claims priority of provisional application 63/121,585, filed on Dec. 4, 2020.
Prior Publication US 2022/0181760 A1, Jun. 9, 2022
Int. Cl. H04B 1/40 (2015.01); H01P 1/38 (2006.01); H03F 3/24 (2006.01); H01P 11/00 (2006.01)
CPC H01P 1/38 (2013.01) [H03F 3/245 (2013.01); H04B 1/40 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated microstrip circulator comprising:
a dielectric substrate having an aperture;
a ferrite disc secured within the aperture in the dielectric substrate;
metallization on upper surfaces of the dielectric substrate and the ferrite disc; and
surface mount contacts disposed on lower surfaces of the dielectric substrate and the ferrite disc and in electrical communication with the metallization on the upper surfaces of the dielectric substrate and the ferrite disc.