US 12,348,252 B2
Radio frequency trimmer circuit
John Jackson Nisbet, Ottawa (CA); Hassan Sarbishaei, Ottawa (CA); and Guillaume Alexandre Blin, Carlisle, MA (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Sep. 20, 2023, as Appl. No. 18/471,113.
Application 18/471,113 is a continuation of application No. 17/445,444, filed on Aug. 19, 2021, granted, now 11,811,438.
Claims priority of provisional application 63/068,815, filed on Aug. 21, 2020.
Prior Publication US 2024/0113735 A1, Apr. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/04 (2006.01); H03F 3/193 (2006.01)
CPC H04B 1/0483 (2013.01) [H03F 3/193 (2013.01); H04B 1/0458 (2013.01); H04B 1/0475 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A front end system, comprising:
a plurality of transmitters each configured to provide a corresponding transmit signal to a corresponding antenna of a plurality of antennae;
a plurality of receivers configured to receive a corresponding receive signal from a corresponding antenna of the plurality of antennae; and
at least one trimmer connected to at least one of the transmitters or at least one of the receivers and configured to trim the corresponding transmit signal or the corresponding receive signal for beam forming, the at least one trimmer including an input, an output, and at least one transistor configured to control at least one of a magnitude trim and a phase trim of the corresponding transmit signal or the corresponding receive signal via a selectively adjusted impedance coupled with a path between the input and the output, the at least one transistor including a first transistor and a second transistor coupled together and forming a gate-channel capacitance, and the selectively adjusted impedance including an adjusted capacitance of the gate-channel capacitance.