Automatic optimization of input split and bias voltage in digitally controlled dual-input Doherty RF PAs
Digitally controlled Dual-Input Doherty Power Amplifiers (DIDPAs) are becoming
increasingly popular due to the flexible input signal splitting between the main and auxiliary …
increasingly popular due to the flexible input signal splitting between the main and auxiliary …
Rapid and reliable re-design of miniaturized microwave passives by means of concurrent parameter scaling and intermittent local tuning
Re-design of microwave passive components for the assumed operating frequencies or
substrate parameters is an important yet a tedious process. It requires simultaneous tuning …
substrate parameters is an important yet a tedious process. It requires simultaneous tuning …
Expedited re-design of multi-band passive microwave circuits using orthogonal scaling directions and gradient-based tuning
Geometry scaling of microwave circuits is an essential but challenging task. In particular, the
employment of a given passive structure in a different application area often requires re …
employment of a given passive structure in a different application area often requires re …
A VNA-Based Wideband Measurement System for Large-Signal Characterization of Multiport Circuits
This work reports on a wideband (WB) measurement system based on a vector network
analyzer (VNA) topology for multiport large-signal measurements. The setup exploits a …
analyzer (VNA) topology for multiport large-signal measurements. The setup exploits a …
A sparse neural network-based power adaptive DPD design and its hardware implementation
M Tanio, N Ishii, N Kamiya - IEEE Access, 2022 - ieeexplore.ieee.org
In this paper, an efficient neural-network-based adaptive DPD design which performs well
under power varying conditions is presented. The DPD design is derived on the basis of the …
under power varying conditions is presented. The DPD design is derived on the basis of the …
Cost-Efficient Two-Level Modeling of Microwave Passives Using Feature-Based Surrogates and Domain Confinement
A variety of surrogate modeling techniques has been utilized in high-frequency design over
the last two decades. Yet, the curse of dimensionality still poses a serious challenge in …
the last two decades. Yet, the curse of dimensionality still poses a serious challenge in …
Pareto-Optimal Multimetric Model Extraction for Digital Predistortion of RF Power Amplifiers for Error Spectrum Redistribution
In complex spectrum coordination scenarios in wireless communications, different frequency
regions may have distinct linearity requirements. Digital predistortion (DPD), a widely used …
regions may have distinct linearity requirements. Digital predistortion (DPD), a widely used …
Enhancing K-Band Dual-Input Doherty PA Performance by Bayesian Optimization
We present a methodology based on Bayesian optimization (BO) for the performance
enhancement of a dual-input Doherty power amplifier (DIDPA) operating at 24 GHz under …
enhancement of a dual-input Doherty power amplifier (DIDPA) operating at 24 GHz under …
Study of the AlPN/GaN high electron mobility transistors with improved transconductance linearity
Y Yao, Y Zhang, J Zhu, K Dang, C Su, J Ma… - Applied Physics …, 2023 - pubs.aip.org
In this work, an improved method of metal-organic chemical vapor deposition was utilized to
grow high-quality AlPN/GaN heterostructures. The characteristics of AlPN those are …
grow high-quality AlPN/GaN heterostructures. The characteristics of AlPN those are …
A multi-objective optimization based doherty power amplifier and its matching network optimization method
J Sun - Plos one, 2023 - journals.plos.org
In the actual design process of traditional power amplifiers, there is a problem of being
cumbersome and unable to simultaneously meet low power and saturation modes …
cumbersome and unable to simultaneously meet low power and saturation modes …