US 12,249,960 B2
Active balun design
Song Lin, Lexington, MA (US); Xudong Wang, Colorado Springs, CO (US); Jinzhou Cao, Hillsboro, OR (US); and Christopher Eugene Hay, Colorado Springs, CO (US)
Assigned to Analog Devices, Inc., Wilmington, MA (US)
Filed by Analog Devices, Inc., Wilmington, MA (US)
Filed on Apr. 13, 2023, as Appl. No. 18/300,069.
Claims priority of provisional application 63/371,456, filed on Aug. 15, 2022.
Prior Publication US 2024/0056031 A1, Feb. 15, 2024
Int. Cl. H03D 7/14 (2006.01); H03D 7/12 (2006.01)
CPC H03D 7/1441 (2013.01) [H03D 7/125 (2013.01); H03D 2200/0023 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A balun circuit comprising:
a plurality of transistors;
an output transmission line connected to output terminals of the transistors;
an input transmission line;
a plurality of serial capacitors coupled to input terminals of the transistors and the input transmission line; and
a resistive-capacitive (RC) feedback path, the RC feedback path including a resistor and a capacitor connected in series between the input transmission line and the output transmission line.