https://galaviz-rf.com/tag/6g/6GWowchemy (https://wowchemy.com)en-usMon, 01 Dec 2025 00:00:00 +0000https://galaviz-rf.com/media/icon_huc0a21cd13d3b330e570311c0697204cf_39767_512x512_fill_lanczos_center_3.pnghttps://galaviz-rf.com/tag/6g/https://galaviz-rf.com/project/dpd-6g-mmw/Mon, 01 Dec 2025 00:00:00 +0000https://galaviz-rf.com/project/dpd-6g-mmw/<h2 id="overview">Overview</h2> <p>As an RF R&amp;D Engineer at <strong>Télécom Paris</strong> (Palaiseau, France), I contributed to the <strong>Docte6G</strong> national research project in collaboration with <strong>NXP Semiconductors</strong>, targeting next-generation 6G wireless systems operating at millimeter-wave (mmW) frequencies.</p> <h2 id="key-contributions">Key Contributions</h2> <ul> <li>Developed a <strong>subband digital predistortion (DPD)</strong> theoretical framework tailored for wideband mmW 6G signals, addressing the unique nonlinear distortion challenges at frequencies above 24 GHz.</li> <li>Designed and validated DPD algorithms through <strong>hardware measurement campaigns</strong>, bridging the gap between simulation-based models and real-world PA behavior.</li> <li>Advanced linearization strategies that account for <strong>frequency-dependent memory effects</strong> in mmW power amplifiers, improving adjacent channel leakage ratio (ACLR) and error vector magnitude (EVM) performance.</li> </ul> <h2 id="tools--technologies">Tools &amp; Technologies</h2> <p>MATLAB, Python, Keysight ADS, RF instrumentation (signal generators, spectrum analyzers, NVNA), NXP mmW PA testbeds.</p> <h2 id="impact">Impact</h2> <p>This work contributes to the foundational RF signal processing layer required for future 6G deployments, where wideband operation at mmW bands demands highly linear and power-efficient transmitter architectures.</p>