US 11,726,170 B2
Multi-input downconversion mixer
Benny Sheinman, Haifa (IL)
Assigned to Ay Dee Kay LLC, Aliso Viejo, CA (US)
Filed by Ay Dee Kay LLC, Aliso Viejo, CA (US)
Filed on Aug. 24, 2021, as Appl. No. 17/410,746.
Application 17/410,746 is a continuation of application No. 16/583,663, filed on Sep. 26, 2019, granted, now 11,105,891.
Claims priority of provisional application 62/779,293, filed on Dec. 13, 2018.
Prior Publication US 2021/0382137 A1, Dec. 9, 2021
Int. Cl. G01S 7/03 (2006.01); H01Q 1/32 (2006.01); H03D 7/12 (2006.01); G01S 7/00 (2006.01)
CPC G01S 7/036 (2013.01) [H01Q 1/3233 (2013.01); H03D 7/125 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A multi-input downconversion mixer that comprises:
multiple differential pairs of transistors, each pair having their bases or gates driven by a differential reference signal, having their emitters or sources connected to a common node having a current or voltage driven based on a respective one of multiple radio frequency (RF) signals, and having their collectors or drains each providing a corresponding differential intermediate frequency (IF) signal;
differential output nodes; and
multiple pairs of switches, each pair selectively connecting a respective one of the differential IF signals to the differential output nodes thereby forming a sum of the selectively connected differential IF signals.