Abstract
The design of a broadband amplifier without using load-pull is described. This approach relies on a coarse model of the power amplifier, in which matching networks are represented by rational polynomials and the device by its large-signal model. A simultaneous search of the impedance space and possible matching networks via particle swarm optimization (PSO) can identify the design solution. The prototype amplifier demonstrates an outstanding gain of 12.8-14.9 dB with ±1 dB gain flatness, output power greater than 40 dBm, and efficiency between 51% and 70% over a target frequency range of 2.4-4.6 GHz, the highest frequency range using the CGH40010 to date. The measured two-tone third-order intermodulation (IMD3) is lower than -20 dBc up to an average output power of 38.7 dBm for frequencies less than 4.2 GHz. The impedances obtained by our approach converge within the high-efficiency region identified by the conventional load-pull approach.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
