Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2016Dual-gate HEMT parameter extraction based on 2.5D multiport simulation of passive structures
Raay, F. van; Quay, R.; Schwantuschke, D.; Ohlrogge, M.; Peschel, D.; Schlechtweg, M.; Ambacher, O.
Konferenzbeitrag
2015Broadband low-noise GaN HEMT TWAs using an active distributed drain bias circuit
Raay, F. van; Quay, R.; Aja, B.; Moschetti, G.; Seelmann-Eggebert, M.; Schlechtweg, M.; Ambacher, O.
Konferenzbeitrag
2015A dual-band UMTS/LTE highly power-efficient class-ABJ doherty GaN PA
Carrubba, V.; Ture, E.; Maroldt, S.; Mußer, M.; Raay, F. van; Quay, R.; Ambacher, O.
Konferenzbeitrag
2015High-efficiency, high-temperature continuous class-E sub-waveform solution AlGaN/GaN power amplifier
Carrubba, V.; Maroldt, S.; Musser, M.; Ture, E.; Dammann, M.; Raay, F. van; Quay, R.; Brueckner, P.; Ambacher, O.
Zeitschriftenaufsatz
2015Performance and parasitic analysis of sub-micron scaled tri-gate AlGaN/GaN HEMT design
Ture, E.; Brückner, P.; Raay, F. van; Quay, R.; Ambacher, O.; Alsharef, M.; Granzner, R.; Schwierz, F.
Konferenzbeitrag
2014A 92 GHz GaN HEMT voltage-controlled oscillator MMIC
Weber, R.; Schwantuschke, D.; Brueckner, P.; Quay, R.; Raay, F. van; Ambacher, O.
Konferenzbeitrag
2014Active harmonic source-/load-pull measurements of AlGaN/GaN HEMTs at X-band frequencies
Maier. T.; Carrubba, V.; Quay, R.; Raay, F. van; Ambacher, O.
Konferenzbeitrag
2014Analysis and performance of drain bias "in-dependent" class-J power amplifier
Carrubba, V.; Ture, E.; Quay, R.; Raay, F. van; Musser, M.; Ambacher, O.
Konferenzbeitrag
2014Automatic extraction of analytical large-signal FET models with parameter estimation by function decomposition
Raay, F. van; Quay, R.; Seelmann-Eggebert, M.; Schwantuschke, D.; Peschel, D.; Schlechtweg, M.; Ambacher, O.
Konferenzbeitrag
2014Realization of a 30-W highly efficient and linear reconfigurable dual-band power amplifier using the continuous mode approach
Carrubba, V.; Maroldt, S.; Musser, M.; Walcher, H.; Raay, F. van; Quay, R.; Ambacher, O.; Wiegner, D.; Seyfried, U.; Bohn, T.; Pascht, A.
Zeitschriftenaufsatz
2014RF-MEMS multi-mode-matching networks for GaN power transistors
Figur, S.A.; Raay, F. van; Quay, R.; Vietzorreck, L.; Ziegler, V.
Zeitschriftenaufsatz
2014RF-MEMS variable matching networks and switches for multi-band and multi-mode GaN power amplifiers
Figur, S.A.; Raay, F. van; Quay, R.; Lohmiller, P.; Vietzorreck, L.; Ziegler, V.
Zeitschriftenaufsatz
2014Source/load pull investigation of AlGaN/GaN power transistors with ultra-high efficiency
Carrubba, V.; Quay, R.; Maroldt, S.; Musser, M.; Raay, F. van; Ambacher, O.
Konferenzbeitrag
2013GaN HEMTs and MMICs for space applications
Waltereit, P.; Bronner, W.; Quay, R.; Dammann, M.; Cäsar, M.; Müller, S.; Reiner, R.; Brueckner, P.; Kiefer, R.; Raay, F. van; Kühn, J.; Musser, M.; Haupt, C.; Mikulla, M.; Ambacher, O.
Zeitschriftenaufsatz
2013Individual source vias for GaN HEMT power bars
Musser, M.; Raay, F. van; Brueckner, P.; Bronner, W.; Quay, R.; Mikulla, M.; Ambacher, O.
Konferenzbeitrag
2013Integral transform and state modeling of 0.1 µm AlGaN/GaN HEMTs for pulsed-RF and CW operation
Raay, F. van; Quay, R.; Seelmann-Eggebert, M.; Schwantuschke, D.; Maier. T.; Schlechtweg, M.; Ambacher, O.
Konferenzbeitrag
2013New low-frequency dispersion model for AlGaN/GaN HEMTs using integral transform and state description
Raay, F. van; Quay, R.; Seelmann-Eggebert, M.; Schwantuschke, D.; Peschel, D.; Schlechtweg, M.; Ambacher, O.
Zeitschriftenaufsatz
2013QFN-packaged highly-linear cascode GaN LNA MMIC from 0.5 to 3 GHz
Maroldt, S.; Aja, B.; Raay, F. van; Krause, S.; Brueckner, P.; Quay, R.
Konferenzbeitrag
2013RF MEMS variable matching networks for multi-band and multi-mode GaN power amplifiers
Figur, S.A.; Ziegler, V.; Raay, F. van; Quay, R.; Vietzorreck, L.
Konferenzbeitrag
2013Simulation of RF MEMS based matching networks and a single pole double throw switch for multiband T/R modules
Figur, S.A.; Raay, F. van; Quay, R.; Vietzorreck, L.; Ziegler, V.
Zeitschriftenaufsatz
2013Ultra-wideband GaN MMIC chip set and high power amplifier module for multi-function defense AESA applications
Schmid, U.; Sledzik, H.; Schuh, P.; Schroth, J.; Oppermann, M.; Brueckner, P.; Raay, F. van; Quay, R.; Seelmann-Eggebert, M.
Zeitschriftenaufsatz
2012GaN-based high-frequency devices and circuits: A Fraunhofer perspective
Waltereit, P.; Bronner, W.; Quay, R.; Dammann, M.; Cäsar, M.; Müller, S.; Raay, F. van; Kiefer, R.; Brueckner, P.; Kühn, J.; Musser, M.; Kirste, L.; Haupt, C.; Pletschen, W.; Lim, T.; Aidam, R.; Mikulla, M.; Ambacher, O.
Zeitschriftenaufsatz
2012High efficiency X-band AlGaN/GaN MMICs for space applications with lifetimes above 10(5) hours
Waltereit, P.; Kühn, J.; Quay, R.; Raay, F. van; Dammann, M.; Cäsar, M.; Müller, S.; Mikulla, M.; Ambacher, O.; Lätti, J.; Rostewitz, M.; Hirche, K.; Däubler, J.
Konferenzbeitrag
2012High efficiency X-band AlGaN/GaN MMICs for space applications with lifetimes above 105 hours
Waltereit, P.; Kuhn, J.; Quay, R.; Raay, F. van; Dammann, M.; Casar, M.; Muller, S.; Mikulla, M.; Ambacher, O.; Latti, J.; Rostewitz, M.; Hirche, K.; Daubler, J.
Konferenzbeitrag
2012Influence of AlGaN barrier thickness on electrical and device properties in Al0.14Ga0.86N/GaN high electron mobility transistor structures
Waltereit, P.; Bronner, W.; Musser, M.; Raay, F. van; Dammann, M.; Cäsar, M.; Müller, S.; Kirste, L.; Köhler, K.; Quay, R.; Mikulla, M.; Ambacher, O.
Zeitschriftenaufsatz
2012Is GaN the ideal material for space?
Waltereit, P.; Bronner, W.; Quay, R.; Dammann, M.; Cäsar, M.; Müller, S.; Reiner, R.; Brueckner, P.; Kiefer, R.; Raay, F. van; Kühn, J.; Musser, M.; Haupt, C.; Mikulla, M.; Ambacher, O.
Konferenzbeitrag
2011Analysis of GaN HEMTs for broadband high-power amplifier design
Musser, M.; Quay, R.; Raay, F. van; Mikulla, M.; Ambacher, O.
Konferenzbeitrag
2011From epitaxy to backside process: Reproducible AlGaN/GaN HEMT technology for reliable and rugged power devices
Bronner, W.; Waltereit, P.; Müller, S.; Dammann, M.; Kiefer, R.; Dennler, P.; Raay, F. van; Musser, M.; Quay, R.; Mikulla, M.; Ambacher, O.
Konferenzbeitrag
2011Modeling and realization of GaN-based dual-gate HEMTs and HPA MMICs for Ku-band applications
Dennler, P.; Raay, F. van; Seelmann-Eggebert, M.; Quay, R.; Ambacher, O.
Konferenzbeitrag
2010AlGaN/GaN-based power amplifiers for mobile radio applications: A review from the system supplier's perspective
Wiegner, D.; Luz, G.; Jüschke, P.; Machinal, R.; Merk, T.; Seyfried, U.; Templ, W.; Pascht, A.; Quay, R.; Raay, F. van
Zeitschriftenaufsatz
2010Design and realization of GaN RF-devices and circuits from 1 to 30 GHz
Kühn, J.; Musser, M.; Raay, F. van; Kiefer, R.; Seelmann-Eggebert, M.; Mikulla, M.; Quay, R.; Rödle, T.; Ambacher, O.
Zeitschriftenaufsatz
2010Device and design optimization for AlGaN/GaN X-band-power-amplifiers with high efficiency
Kühn, J.; Raay, F. van; Quay, R.; Kiefer, R.; Mikulla, M.; Seelmann-Eggebert, M.; Bronner, W.; Schlechtweg, M.; Ambacher, O.; Thumm, M.
Zeitschriftenaufsatz
2010Harmonic termination of AlGaN/GaN/(Al)GaN single- and double-heterojunction HEMTs
Kühn, J.; Waltereit, P.; Raay, F. van; Aidam, R.; Quay, R.; Ambacher, O.; Thumm, M.
Konferenzbeitrag
2010High efficiency and low leakage AlGaN/GaN HEMTs for a robust, reproducible and reliable X-band MMIC space technology
Waltereit, P.; Bronner, W.; Kiefer, R.; Quay, R.; Kühn, J.; Raay, F. van; Dammann, M.; Müller, S.; Libal, C.; Meier, T.; Mikulla, M.; Ambacher, O.
Konferenzbeitrag
2009Design of highly-efficient GaN x-band-power-amplifier MMICs
Kühn, J.; Raay, F. van; Quay, R.; Kiefer, R.; Maier, T.; Stibal, R.; Mikulla, M.; Seelmann-Eggebert, M.; Bronner, W.; Schlechtweg, M.; Ambacher, O.; Thumm, M.
Konferenzbeitrag
2009Design of X-band GaN MMICs using field plates
Kühn, J.; Raay, F. van; Quay, R.; Kiefer, R.; Peschel, D.; Mikulla, M.; Seelmann-Eggebert, M.; Bronner, W.; Schlechtweg, M.; Ambacher, O.; Thumm, M.
Konferenzbeitrag
2009Gallium nitride MMICs for future reconnaissance and imaging applications
Quay, R.; Mikulla, M.; Waltereit, P.; Raay, F. van; Dammann, M.; Kühn, J.; Ambacher, O.; Schuh, P.
Konferenzbeitrag
2009GaN HEMT and MMIC development at Fraunhofer IAF: Performance and reliability
Waltereit, P.; Bronner, W.; Quay, R.; Dammann, M.; Kiefer, R.; Müller, S.; Musser, M.; Kühn, J.; Raay, F. van; Seelmann-Eggebert, M.; Mikulla, M.; Ambacher, O.; Rijs, F. van; Rödle, T.; Riepe, K.
Zeitschriftenaufsatz
2009L-to-Ka-band AlGaN/GaN HEMT power amplifiers with high efficiency
Quay, R.; Raay, F. van; Kühn, J.; Kiefer, R.; Waltereit, P.; Musser, M.; Maroldt, S.; Dammann, M.; Mikulla, M.; Ambacher, O.
Konferenzbeitrag
2009X-band T/R-module front-end based on GaN MMICs
Schuh, P.; Sledzik, H.; Reber, R.; Fleckenstein, A.; Leberer, R.; Oppermann, M.; Quay, R.; Raay, F. van; Seelmann-Eggebert, M.; Kiefer, R.; Mikulla, M.
Zeitschriftenaufsatz
2008Balanced microstrip AlGaN/GaN HEMT power amplifier MMIC for X-band applications
Kühn, J.; Raay, F. van; Quay, R.; Kiefer, R.; Bronner, W.; Seelmann-Eggebert, M.; Schlechtweg, M.; Mikulla, M.; Ambacher, O.; Thumm, M.
Konferenzbeitrag
2008Efficient AlGaN/GaN HEMT power amplifiers
Quay, R.; Raay, F. van; Kühn, J.; Kiefer, R.; Waltereit, P.; Zorcic, M.; Musser, M.; Bronner, W.; Dammann, M.; Seelmann-Eggebert, M.; Schlechtweg, M.; Mikulla, M.; Ambacher, O.; Thorpe, J.; Riepe, K.; Rijs, F. van; Saad, M.; Harm, L.; Rödle, T.
Konferenzbeitrag
2008GaN MMIC based T/R-module front-end for X-band applications
Schuh, P.; Sledzik, H.; Reber, R.; Fleckenstein, A.; Leberer, R.; Oppermann, M.; Quay, R.; Raay, F. van; Seelmann-Eggebert, M.; Kiefer, R.; Mikulla, M.
Konferenzbeitrag
2008A uniform, reproducible and reliable GaN HEMT technology with breakdown voltages in excess of 160 V delivering more than 60% PAE at 80 V
Waltereit, P.; Bronner, W.; Quay, R.; Dammann, M.; Müller, S.; Kiefer, R.; Walcher, H.; Raay, F. van; Kappeler, O.; Mikulla, M. et al.
Konferenzbeitrag
2007GaN HEMT: Trends in civil and military circuit applications
Quay, R.; Raay, F. van; Tessmann, A.; Kiefer, R.; Dammann, M.; Mikulla, M.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2007A systematic state-space approach to large-signal transistor modeling
Seelmann-Eggebert, M.; Merkle, T.; Raay, F. van; Quay, R.; Schlechtweg, M.
Zeitschriftenaufsatz
2006Design and analysis of a 34 dBm Ka-band GaN high power amplifier MMIC
Heijningen, M. van; Vliet, F.E. van; Quay, R.; Raay, F. van; Seelmann-Eggebert, M.
Konferenzbeitrag
2006Design and W-CDMA characterization of a wideband AlGaN/GaN HEMT power amplifier for future 3G multiband base station applications
Wiegner, D.; Seyfried, U.; Templ, W.; Naß, T.; Weber, S.; Wörner, S.; Dettmann, I.; Quay, R.; Raay, F. van; Walcher, H.; Seelmann-Eggebert, M.; Reiner, R.; Moritz, R.; Kiefer, R.
Konferenzbeitrag
2006GaN/AlGaN HEMT hybrid and MMIC microstrip power amplifiers on s.i. SiC substrate
Quay, R.; Kiefer, R.; Raay, F. van; Reiner, R.; Kappeler, O.; Müller, S.; Dammann, M.; Bronner, W.; Mikulla, M.; Schlechtweg, M.; Wiegner, D.; Seyfried, U.; Templ, W.; Weimann, G.
Zeitschriftenaufsatz
2006Linear broadband GaN MMICs for Ku-band applications
Schuh, P.; Leberer, R.; Sledzik, H.; Schmidt, D.; Oppermann, M.; Adelseck, B.; Brugger, H.; Quay, R.; Raay, F. van; Seelmann-Eggebert, M.; Kiefer, R.; Bronner, W.
Konferenzbeitrag
2006Load pull characterization of GaN/AlGaN HEMTs
Schuberth, C.; Arthaber, H.; Mayer, M.; Magerl, G.; Quay, R.; Raay, F. van
Konferenzbeitrag
2006Two-stage GaN based multiband power amplifier for software defined radio applications
Naß, T.; Wiegner, D.; Seyfried, U.; Templ, W.; Weber, S.; Wörner, S.; Klose, P.; Quay, R.; Raay, F. van; Walcher, H.; Massler, H.; Seelmann-Eggebert, M.; Kappeler, O.; Kiefer, R.
Konferenzbeitrag
2006X-band high-power microstrip AlGaN/GaN HEMT amplifier MMICs
Raay, F. van; Quay, R.; Kiefer, R.; Bronner, W.; Seelmann-Eggebert, M.; Schlechtweg, M.; Mikulla, M.; Weimann, G.
Konferenzbeitrag
2005An AlGaN/GaN push-pull HEMT amplifier with 400 MHz bandwidth and 100 W peak output power
Kappeler, O.; Quay, R.; Raay, F. van; Kiefer, R.; Reiner, R.; Walcher, H.; Müller, S.; Mikulla, M.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2005A coplanar X-band AlGaN/GaN power amplifier MMIC on s.i. SiC substrate
Raay, F. van; Quay, R.; Kiefer, R.; Benkhelifa, F.; Raynor, B.; Pletschen, W.; Kuri, M.; Massler, H.; Müller, S.; Dammann, M.; Mikulla, M.; Schlechtweg, M.; Weimann, G.
Zeitschriftenaufsatz
2005High Power High bandwidth GaN MMICs and hybrid amplifiers: Design and characterization
Raay, F. van; Quay, R.; Kiefer, R.; Walcher, H.; Kappeler, O.; Seelmann-Eggebert, M.; Muller, S.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2005High power/high bandwidth GaN MMICs and hybrid amplifiers: Design and characterization
Raay, F. van; Quay, R.; Kiefer, R.; Müller, S.; Walcher, H.; Seelmann-Eggebert, M.; Kappeler, O.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2005Ka-band AlGaN/GaN HEMT high power and driver amplifier MMICs
Heijningen, M. van; Vliet, F.E. van; Quay, R.; Raay, F. van; Kiefer, R.; Müller, S.; Krausse, D.; Seelmann-Eggebert, M.; Mikulla, M.; Schlechtweg, M.
Konferenzbeitrag
2005A microstrip X-band AlGaN/GaN power amplifier MMIC on s.i. SiC substrate
Raay, F. van; Quay, R.; Kiefer, R.; Fehrenbach, W.; Bronner, W.; Kuri, M.; Benkhelifa, F.; Massler, H.; Müller, S.; Mikulla, M.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2005Multistage broadband amplifiers based on GaN HEMT technology for 3G/4G base station applications with extremely high bandwidth
Wiegner, D.; Merk, T.; Seyfried, U.; Templ, W.; Merk, S.; Quay, R.; Raay, F. van; Walcher, H.; Massler, H.; Seelmann-Eggebert, M.; Reiner, R.; Moritz, R.; Kiefer, R.
Konferenzbeitrag
2005Performance and fabrication of GaN/AlGaN power MMIC at 10 GHz
Benkhelifa, F.; Kiefer, R.; Müller, S.; Raay, F. van; Quay, R.; Sah, R.E.; Dammann, M.; Mikulla, M.; Weimann, G.
Konferenzbeitrag
2003AlGaN/GaN HEMTs on SiC: Towards power operation at V-band
Quay, R.; Tessmann, A.; Kiefer, R.; Weber, R.; Raay, F. van; Kuri, M.; Riessle, M.; Massler, H.; Müller, S.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2003Development of a 2"-AlGaN/GaN HEMT technology on sapphire and SiC for mm-wave high-voltage power applications
Kiefer, R.; Quay, R.; Müller, S.; Feltgen, T.; Raynor, B.; Schleife, J.; Köhler, K.; Massler, H.; Ramberger, S.; Raay, F. van; Tessmann, A.; Mikulla, M.; Weimann, G.
Zeitschriftenaufsatz
2003Large signal modeling of AlGaN/GaN HEMTs with Psat > 4 W/mm at 30 GHz suitable for broadband power applications
Raay, F. van; Quay, R.; Kiefer, R.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2003A n-state time-domain measurement test-bench for characterization of intermodulation distortion on device level
Merkle, T.; Ramberger, S.; Kuri, M.; Raay, F. van
Konferenzbeitrag
2002AlGaN/GaN HEMTs on SiC operating at 40 GHz
Quay, R.; Kiefer, R.; Raay, F. van; Massler, H.; Ramberger, S.; Müller, S.; Dammann, M.; Mikulla, M.; Schlechtweg, M.; Weimann, G.
Konferenzbeitrag
2002AlGaN/GaN HEMTs: Device aspects for a process technology at K-Band
Raay, F. van
Konferenzbeitrag
2002AlGaN/GaN-HEMTs for power applications up to 40 GHz
Kiefer, R.; Quay, R.; Müller, S.; Köhler, K.; Raay, F. van; Raynor, B.; Pletschen, W.; Massler, H.; Ramberger, S.; Mikulla, M.; Weimann, G.
Konferenzbeitrag