The next-generation (5G/6G) wireless communication aims to leapfrog the currently
occupied sub-6 GHz spectrum to the wideband millimeter-wave (MMW) spectrum. However …

Power amplifier (PA) efficiency and linearity are among the key drivers to reduce energy
consumption while enabling high data rates in the fifth-generation (5G) millimeter-wave …

Designing power amplifiers based on the demanded power and frequency is one of the
challenging processes of circuits design in electrical engineering. This is best understood …

In this article, a Ka-band broadband analog predistortion (APD) microwave monolithic
integrated circuit (MMIC) with independent tunability based on a 0.15 μm GaAs pHEMT …

The feasibility of implementing digital predistortion for next-generation wireless
communication is faced with a dilemma due to the ever-increasing demand for faster data …

Analog and/or digital predistortion may be used to linearize power amplifiers (PAs) at the
cost of additional hardware. We present a novel scheme which uses segmented non-linear …

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 …

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

This letter proposes a group digital predistorter with step uniformization (SU-GDPD) for
massive multi-input multi-output (MIMO) transmitters with hybrid beamforming architecture …

Osajulkaisut Osajulkaisut eivät sisälly väitöskirjan elektroniseen versioon. Tuovinen, T.,
Tervo, N., & Pärssinen, A.(2017). Analyzing 5G RF system performance and relation to link …