Eighty years ago, William Doherty invented a PA architecture that has played-and will
continue to play-an important role in the development of energy-efficient radio transmitters …

In this paper, a comparative study of different efficiency enhancement architectures for
power amplifiers (PA) has been undertaken. Architectures such as Doherty, Outphasing and …

This paper presents a linear Doherty power amplifier (PA) with adaptive bias circuit for
average power-tracking (APT) operation. The Doherty PA is linked with a multi-level DC-DC …

This paper presents a study of supply modulation in a Doherty power amplifier (DPA). To
validate a simplified theoretical model, a 3.5 GHz conventional symmetrical DPA using a 6 …

This paper presents a two-stage stacked power amplifier integrated circuit (PAIC) for
broadband and high efficiency using a 2-μm InGap/GaAs HBT process with a second …

The future 6G mobile communication systems are expected not only to improve the
broadband connectivity and other services but also enhance the network coverage, energy …

Power amplifier (PA) is the core device for dc-RF conversion in wireless power transfer
(WPT) system. However, the drain efficiency (DE) of PA decreases significantly due to the …

At present, it is a trend in wireless communication to integrate conventional separate
components into a single one for further miniaturisation and whole performance …

High data-rate communication systems require the transmission of radio frequency signals
which are modulated in both amplitude and phase, presenting peak power envelope swings …

In this paper, a highly-efficient and high-power silicon integrated circuit (SiC) high electron
mobility transistor (HEMT) gallium nitride (GaN) based Doherty power amplifier (DPA) …