US 12,224,717 B2
Distributed bias circuit for wideband amplifiers
Charles Forrest Campbell, Dallas, TX (US)
Assigned to Qorvo US, Inc., Greensboro, NC (US)
Filed by Qorvo US, Inc., Greensboro, NC (US)
Filed on Mar. 8, 2022, as Appl. No. 17/689,469.
Prior Publication US 2023/0291364 A1, Sep. 14, 2023
Int. Cl. H03F 1/42 (2006.01); H03F 3/195 (2006.01); H03F 3/60 (2006.01)
CPC H03F 1/42 (2013.01) [H03F 3/195 (2013.01); H03F 2200/36 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An amplifier system, comprising:
wideband amplifier circuitry comprising a plurality of transistors in an output stage of an amplifier circuit; and
signal lines operably connected to terminals of the transistors, wherein the signal lines are used in an embedded blocking capacitor structure that operably connects the terminals of the transistors to a radio frequency (RF) output, the embedded blocking capacitor structure comprising at least one metal-insulator-metal capacitor.