Search Results - "Pelk, M.J."

A High-Efficiency 100-W GaN Three-Way Doherty Amplifier for Base-Station Applications by Pelk, M.J., Neo, W.C., Gajadharsing, J.R., Pengelly, R.S., de Vreede, L.C.N.

“…A three-way Doherty 100-W GaN base-station power amplifier at 2.14 GHz is presented. Simple, but accurate design equations for the output power combiner of the…”
Get full text

Active Harmonic Load-Pull With Realistic Wideband Communications Signals by Marchetti, M., Pelk, M.J., Buisman, K., Neo, W., Spirito, M., de Vreede, L.

“…A new wideband open-loop active harmonic load-pull measurement approach is presented. The proposed method is based on wideband data-acquisition and wideband…”
Get full text

A 90-W Peak Power GaN Outphasing Amplifier With Optimum Input Signal Conditioning by Qureshi, J.H., Pelk, M.J., Marchetti, M., Neo, W.C.E., Gajadharsing, J.R., van der Heijden, M.P., de Vreede, L.C.N.

“…A 90-W peak-power 2.14-GHz improved GaN outphasing amplifier with 50.5% average efficiency for wideband code division multiple access (W-CDMA) signals is…”
Get full text

Adaptive Multi-Band Multi-Mode Power Amplifier Using Integrated Varactor-Based Tunable Matching Networks by Neo, W.C.E., Yu Lin, Xiao-dong Liu, de Vreede, L.C.N., Larson, L.E., Spirito, M., Pelk, M.J., Buisman, K., Akhnoukh, A., Anton de Graauw, Nanver, L.K.

“…This paper presents a multi-band multi-mode class-AB power amplifier, which utilizes continuously tunable input and output matching networks integrated in a…”
Get full text

Active Harmonic Load-Pull for On-Wafer Out-of-Band Device Linearity Optimization by Spirito, M., Pelk, M.J., van Rijs, F., Theeuwen, S.J.C.H., Hartskeerl, D., de Vreede, L.C.N.

“…In this paper, we present an active harmonic load-pull system especially developed for the on-wafer linearity characterization/optimization of active devices…”
Get full text

A Mixed-Signal Approach Towards Linear and Efficient N-Way Doherty Amplifiers by Neo, W.C.E., Qureshi, J., Pelk, M.J., Gajadharsing, J.R., de Vreede, L.C.N.

“…A mixed-signal approach for the design and testing of high-performance N-way Doherty amplifiers is introduced. In support of this, an analysis of N-way…”
Get full text

A Low-Loss Compact Linear Varactor Based Phase-Shifter by Qureshi, J.H., Kim, S., Buisman, K., Huang, C., Pelk, M.J., Akhnoukh, A., Larson, L.E., Nanver, L.K., de Vreede, L.C.N.

“…Design trade-offs are presented for varactor-based variable phase-shifters in terms of size, tuning range, bandwidth/phase linearity and large-signal…”
Get full text

Base-band impedance control and calibration for on-wafer linearity measurements by Pelk, M.J., de Vreede, L.C.N., Spirito, M., Jos, J.H.

“…This paper introduces a direct and accurate method for controlling and measuring the on-wafer device terminations at the base-hand / envelope frequency, using…”
Get full text