Abstract
A methodology for designing a dual-band (DB) high-efficiency power amplifier (PA) with adjustable transmission zero (TZ) is proposed in this brief. For achieving a compact topology, the circuit for constructing the adjustable TZ is merged into the output matching network (OMN), and an open stub is shared by the harmonic control network (HCN) and the OMN. For verifying the proposed design method and structure, a prototype operating at 2.1 and 3.5 GHz is designed. The adjustability of the TZ is analyzed, and the frequency range of the TZ is between 2.3 and 3.2 GHz. For verification, the TZ is set to be 2.4 GHz and the DB PA is fabricated and measured. The result shows that the PA achieves the maximum power-added efficiency (PAE) of 68.5% and 64.8% with the output power of 41.0 and 40.4 dBm at 2.1 and 3.5 GHz, respectively. Moreover, the power gain at the TZ of 2.4 GHz is −26.9 dB, which shows a good suppression effect. Therefore, the proposed PA has a good application prospect in wireless communication systems.
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 callMore From: IEEE Transactions on Circuits and Systems II: Express Briefs
Disclaimer: 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.
