New Load Modulation Combiner Having a Capability of Back-Off Control for Doherty Power Amplifiers
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3240649
Abstract: A new load modulation combiner (LMC) having the capability of back-off control is proposed for a Doherty power amplifier (DPA). The proposed LMC consists of two transmission lines tied at the combining node, and a… read more here.
Keywords: back control; capability back; power; load modulation ... See more keywords
A 28-GHz Flip-Chip Packaged Chireix Transmitter With On-Antenna Outphasing Active Load Modulation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2019.2898112
Abstract: This paper presents a packaged 28-GHz Chireix outphasing transmitter (TX) for power amplifier (PA) efficiency enhancement at both peak and back-off output power (PBO). The main objective is to investigate the possibility of employing a… read more here.
Keywords: load modulation; power; active load; efficiency ... See more keywords
The Best of Both Worlds: The Dynamic Load-Modulation Power Amplifier
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Microwave Magazine"
DOI: 10.1109/mmm.2019.2963608
Abstract: Mobile data traffic is expected to triple between 2018 and 2021 [1]. To meet past and future growth targets in an increasingly limited electromagnetic spectrum, wireless communications systems have evolved at a staggering rate. Current… read more here.
Keywords: load modulation; best worlds; worlds dynamic; power ... See more keywords
Input Phase Controlled Doherty Power Amplifier With Out-Phased Current Load Modulation for Arbitrary Output Back-Off
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2025.3557496
Abstract: A tradeoff between bandwidth and back-off range is commonly found in the Doherty power amplifier (DPA). This paper proposes an input phase control mechanism together with a cooperative asymmetric out-phased current load modulation technique. The… read more here.
Keywords: input phase; phased current; load modulation; current load ... See more keywords
An Optimization Method for Load Modulation Trajectories in a Millimeter-Wave GaN MMIC Doherty Power Amplifier Design
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2023.3296578
Abstract: The contribution of this brief is proposing an optimization method for load modulation trajectories of the Carrier and Peaking transistors based on shared load-pull contours. Firstly, theoretical analysis reveals that the load modulation trajectories can… read more here.
Keywords: modulation trajectories; method; load modulation; modulation ... See more keywords
Simplified Emulation of Active Load Modulation for a Millimeter-Wave GaN MMIC Doherty Power Amplifier Design
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2023.3284258
Abstract: Based on large-signal simulations, this article proposes a simplified method to emulate the active load modulation between the carrier and peaking transistors in a Doherty power amplifier (DPA) design. In contrast to the conventional load–pull… read more here.
Keywords: load; active load; load modulation; power ... See more keywords
Sequential Load-Modulated Balanced Amplifier With Asymmetrical Output Coupling for a Load Modulation Continuum
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2024.3487198
Abstract: The purpose of this article is to present a novel technique for sequential load modulation balanced amplifier (SLMBA) that is capable of achieving a continuum of load modulation (LM) ratio as well as high efficiency.… read more here.
Keywords: output; load modulation; continuum; balanced amplifier ... See more keywords