In this paper, an efficient algorithm for the efficiency maximization of the multilevel linear amplification using nonlinear components (M-LINC) systems is proposed regarding the linearity of the system. In this algorithm, we use the generalized memory polynomial (GMP) to provide a behavioral model for the power amplifier (PA) and calculate the power spectral density (PSD) of the output signal ...

In this paper, the design, implementation, and experimental results of a high-efciency dual-band GaN-HEMT Doherty power amplier (DPA) are presented. An extensive discussion about the design of the passive structures is presented showing different possible topologies of the dual-band DPA. One of the proposed topologies is used to design a dual-band DPA in hybrid technology for the frequency ba...

This paper presents the design of an asymmetrical Doherty power amplifier (DPA) with improved linearity and efficiency performance. Resonator-type drain bias networks, providing high impedances at the carrier frequency and low impedances with small variation at the envelope frequency, are introduced to reduce the DPA’s memory effects when transmitting wideband signals. The general criteria for ...

This paper presents a new compact load network for Doherty power amplifiers (DPAs) with only two matching networks, such as an output of the carrier amplifier, and post-matching (PMN), even in presence parasitic circuits packaged transistor. The amplifier can be configured using simple L-section structure complex impedance. No is required between peaking current combining junction. As result, p...

This paper presents a new black-box technique for modeling long term memory effects in radio frequency power amplifiers. The proposed technique extends commonly used behavioral models by utilizing parameters that dynamically change depending on a long term memory effect while keeping the original model structure intact. This enables us to accurately track and model transient changes in power am...