Stefan Heinen

A Comprehensive, Quantitative Comparison of Inverter Architectures for Various PV Systems, PV Cells, and Irradiance Profiles

Sebastian Strache, Ralf Wunderlich, Stefan Heinen · IEEE Transactions on Sustainable Energy · 2014 · 80 citations

Engineering, Energy Efficiency, Energy Conversion +19

A 1-MHz-bandwidth second-order continuous-time quadrature bandpass sigma-delta modulator for low-IF radio receivers

Frank Henkel, U. Langmann, A. Hanke et al. · IEEE Journal of Solid-State Circuits · 2002 · 71 citations

Continuous-time Architecture, Radio Frequency, Data Converter +9

Investigations on Air Bridges Used for MMICs in CPW Technique

N.H.L. Koster, S. Koblowski, R.M. Bertenburg et al. · 1989 · 59 citations

Electrical Engineering, Bridge Design, Engineering +13

A Wearable Wireless ECG Monitoring System With Dynamic Transmission Power Control for Long-Term Homecare

Yishan Wang, Sammy Doleschel, Ralf Wunderlich et al. · Journal of Medical Systems · 2015 · 48 citations

Wearable System, Wireless Telemedicine, Engineering +7

A low-IF RX two-point ΣΔ-modulation TX CMOS single-chip Bluetooth solution

C. Durdodt, Michael Friedrich, Christian Grewing et al. · IEEE Transactions on Microwave Theory and Techniques · 2001 · 45 citations

Low-power Electronics, Data Converter, Mixed-signal Integrated Circuit +5