MM

M. Marchetti

21 records found

Authored

Vector gain based EVM estimation at mm-wave frequencies
In this contribution we present a method for estimating linearity performance of devices operating in the higher millimeter-wave region, under modulated signals and over different loading conditions. The proposed method uses the power dependent vector gain extracted during contin ...

Examples of high-speed harmonic load pull investigations of high-efficiency GaN power transistors
Conference paper (2015) - M. Marchetti, T Maier, V Carrubba, S Maroldt, M Musser, R Quay

Mixed-signal instrumentation for large-signal device characterization and modelling
Doctoral thesis (2013) - M. Marchetti

Synthesized pulsed bias for device characterization

Evaluation of HBT device linearity using advanced measurement techniques

60 GHz mixed signal active load-pull system for millimeter wave devices characterization
Conference paper (2012) - L. Galatro, M. Marchetti, M. Spirito

Efficient LDMOS device operation for envelope tracking amplifiers through second harmonic manipulation

Enhanced RF power amplifiers and device characterization setups using coherent mixed-signal techniques

A multi-step phase calibration procedure for closely spaced multi-tone signals

A mixed-signal load-pull system for base-station applications

A GaAs junction varactor with a continuously tunable range of 9:1 and an OIP3 of 57 dBm

Mixed-signal active load pull; the fast track to 3G and 4G amplifiers
Journal article (2010) - M. Marchetti, M. Marchetti, M. Marchetti

Active harmonic load-pull for LDMOS devices in base station applications
Conference paper (2010) - M. Marchetti, M. Marchetti, M. Marchetti

A mixed-signal approach for high-speed fully controlled multidimensional load-pull parameters sweep

A 90W peak power GaN outphasing amplifier with optimum input signal conditioning

Active harmonic load-pull with realistic wideband communications signals
Journal article (2008) - M. Marchetti, M.J. Pelk, K. Buisman, WCE Neo, M. Spirito

Enabling low-distortion varactors for adaptive transmitters

A low-cost pulsed RF & I-V measurement setup for isothermal device characterization
Conference paper (2007) - M. Marchetti, K. Buisman, M.J. Pelk, L.C.N. de Vreede

A low-cost, highly versatile, pulsed RF - pulsed I-V isothermal device characterization setup is presented. The realized setup combines a synthetic instrument high dynamic range pulsed network analyzer with pulsed I-V measurements. The resulting configuration facilitates very ...

Varactor topologies for RF adaptivity with improved power handling and linearity

A pulsed network analyzer for high dynamic range isothermal measurements