Abstract
This paper presents a novel Doherty transmitter architecture based on antenna active load modulation (AALM) to improve the efficiency of array transmitters, where the conventional power combiner is substituted by an antenna array. Different from conventional Doherty architecture, the active load modulation is realized by the mutual coupling between the array elements. To verify the proposed architecture, a power amplifier (PA) prototype is designed and implemented at 2.3 GHz. Experimental results show that the transmitter exhibits a double-peak efficiency profile which is similar to conventional Doherty PA. The prototpye also achieves power gain of 14 dB, saturated output power of 40.5 dBm, and drain efficiency of better than 40%.
Published Version
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.
