Qorvo US, Inc.


This paper proposes changing the Lange from a 50ohm impedance to a 25 ohm impedance. Changing the Lange from 50 ohms to 25ohms and adding a 25ohm to 50 ohm Trifilar transformer on the output will allow for much higher power balanced amplifiers on thin substates like 50um GaN. The topology could also be used on other substrate materials like Alumina to make the trace widths larger so that you can work at higher frequency and power levels.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.