A simplified all-in-one load network of Doherty power amplifier (DPA) was proposed for
extended back-off range and broadband operation in this study. Although the proposed load …

This article proposes a new phase compensation technique to expand the operating
bandwidth of an asymmetric Doherty power amplifier (ADPA). Its operation principle is to …

The load network of the carrier amplifier for the conventional Doherty power amplifier (DPA)
consists of an impedance matching circuit, an offset line, and a/4 transmission line (TL), so …

This brief reports a 0.92-GHz two-stage power amplifier (PA) in 130-nm CMOS process with
improved back-off power efficiency and linearity. The two key techniques are: a switching …

This article presents a theoretical analysis and circuit design for an enhanced dual-mode
reciprocal Doherty power amplifier (DM-RDPA). To achieve bandwidth enhancement, an …

This article presents a multimode Doherty power amplifier (M-DPA) monolithic microwave
integrated circuit (MMIC). The M-DPA comprises of a load network (LN) based on a …

Techniques for adaptive input-power distribution in Doherty power amplifier (DPA) with the
modified Wilkinson power divider and load modulation of its driver-stage PA are described …

Nonlinear distortion is one of key limiting factors in radio over fiber (RoF) transmission
systems. To suppress the nonlinear distortion, digital pre-distortion (DPD) has been …

In this paper, a Doherty power amplifier (DPA) is proposed consisting of class-E as the main
branch and class-D as the auxiliary power amplifier (PA). Past matching network is applied …

High efficiency and high gain Doherty power amplifier (DPA) with high output power is
proposed in this paper for wireless mobile applications in the UHF band. The proposed …