Niklas Wadefalk

Visar 62 publikationer

2018

Low noise 874 GHz receivers for the international submillimetre airborne radiometer (ISMAR)

Arvid Hammar, Peter Sobis, Vladimir Drakinskiy et al
Review of Scientific Instruments. Vol. 89 (5)
Artikel i vetenskaplig tidskrift
2017

Two-Finger InP HEMT Design for Stable Cryogenic Operation of Ultra-Low-Noise Ka- and Q-Band LNAs

Eunjung Cha, Giuseppe Moschetti, Niklas Wadefalk et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 65 (12), p. 5171-5180
Artikel i vetenskaplig tidskrift
2017

Two-finger InP HEMT design for stable cryogenic operation of ultra-low-noise Ka-band LNAs

Eunjung Cha, Giuseppe Moschetti, Niklas Wadefalk et al
IEEE MTT-S International Microwave Symposium Digest, p. 168-171
Paper i proceeding
2017

Cryogenic LNAs for SKA band 2 to 5

Joel Schleeh, Giuseppe Moschetti, Niklas Wadefalk et al
IEEE MTT-S International Microwave Symposium Digest, p. 164-167
Paper i proceeding
2017

Dependence of noise temperature on physical temperature for cryogenic low-noise amplifiers

M. A. McCulloch, Jan Grahn, S. J. Melhuish et al
Journal of Astronomical Telescopes, Instruments, and Systems. Vol. 3 (1)
Artikel i vetenskaplig tidskrift
2017

Cryogenic W-band LNA for ALMA band 2+3 with average noise temperature of 24 K

Yulung Tang, Niklas Wadefalk, J. Kooi et al
IEEE MTT-S International Microwave Symposium Digest, p. 176-179
Paper i proceeding
2016

10 K Room Temperature LNA for SKA Band 1

Joel Schleeh, Niklas Wadefalk, Per-Åke Nilsson et al
IEEE MTT-S International Microwave Symposium Digest. Vol. 2016 - August, p. Art no 7540344-
Paper i proceeding
2016

Cryogenic low-noise InP HEMTs: A source-drain distance study

Eunjung Cha, Arsalan Pourkabirian, Joel Schleeh et al
2016 Compound Semiconductor Week, CSW 2016, p. Article number 7528576-
Paper i proceeding
2015

Cryogenic Low Noise Amplifiers in an InP HEMT MMIC Process

Per-Åke Nilsson, Arsalan Pourkabirian, Joel Schleeh et al
Asia-Pacific Microwave Conference, APMC 2015, Nanjing, China, 6-9 December 2015. Vol. 1, p. Art. no. 7411746-
Paper i proceeding
2015

SWI 1200/600 GHz highly integrated receiver front-ends

Peter Sobis, Vladimir Drakinskiy, Niklas Wadefalk et al
36th ESA Antenna Workshop on Antennas and RF Systems for Space Science, ESA/ESTEC ,Noordwijk, The Netherlands; 6-9 Oct. 2015. Vol. session S3.1.2
Paper i proceeding
2015

Phonon black-body radiation limit for heat dissipation in electronics

Joel Schleeh, J. Mateos, Ignacio Íñiguez-De-La-Torre et al
Nature Materials. Vol. 14 (2), p. 187-192
Artikel i vetenskaplig tidskrift
2014

Cryogenic noise performance of InGAAs/InAlAs HEMTs grown on InP and GaAs substrate

Joel Schleeh, Helena Rodilla, Niklas Wadefalk et al
Solid-State Electronics. Vol. 91, p. 74-77
Artikel i vetenskaplig tidskrift
2014

Low noise GaAs Schottky TMIC and InP HEMT MMIC based Receivers for the ISMAR and SWI Instruments

Peter Sobis, Vladimir Drakinskiy, Niklas Wadefalk et al
ESA Workshop on Micro and Millimetre Wave Technology and Techniques, Estec, the Netherlands
Paper i proceeding
2014

Reliability Assessment of Mixers, Multipliers and Low Noise Amplifiers for Space Applications

Aik-Yean Tang, Peter Sobis, Niklas Wadefalk et al
GigaHertz Symposium
Paper i proceeding
2014

An InP MMIC process optimized for low noise at Cryo

Per-Åke Nilsson, Joel Schleeh, Niklas Wadefalk et al
Technical Digest - IEEE Compound Semiconductor Integrated Circuit Symposium, CSIC
Paper i proceeding
2013

Cryogenic Ultra-Low Noise Amplification - InP PHEMT vs. GaAs MHEMT

Joel Schleeh, Helena Rodilla, Niklas Wadefalk et al
2013 International Conference on Indium Phosphide and Related Materials
Paper i proceeding
2013

Cryogenic Performance of Low-Noise InP HEMTs: a Monte Carlo Study

Helena Rodilla, Joel Schleeh, Per-Åke Nilsson et al
IEEE Transactions on Electron Devices. Vol. 60 (5), p. 1625-1631
Artikel i vetenskaplig tidskrift
2013

Cryogenic Broadband Ultra-Low-Noise MMIC LNAs for Radio Astronomy Applications

Joel Schleeh, Niklas Wadefalk, Per-Åke Nilsson et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 61 (2), p. 871-877
Artikel i vetenskaplig tidskrift
2013

Influence of gate-channel distance in low-noise InP HEMTs

Per-Åke Nilsson, Helena Rodilla, Joel Schleeh et al
2013 International Conference on Indium Phosphide and Related Materials
Paper i proceeding
2013

Characterization and Modeling of Cryogenic Ultralow-Noise InP HEMTs

Joel Schleeh, Helena Rodilla, Niklas Wadefalk et al
IEEE Transactions on Electron Devices. Vol. 60 (1), p. 206-212
Artikel i vetenskaplig tidskrift
2012

Multifunction low noise millimeterwave MMICs for remote sensing

Herbert Zirath, Vessen Vassilev, Morteza Abbasi et al
IEEE MTT-S International Microwave Symposium Digest
Paper i proceeding
2012

Cryogenic Operation of InAs/AlSb HEMT Hybrid LNAs

Giuseppe Moschetti, Niklas Wadefalk, Per-Åke Nilsson et al
15th European Microwave Week - Space for Microwaves Conference Proceedings. Amsterdam, NETHERLANDS. OCT 28-NOV 02, 2012, p. 373-376
Paper i proceeding
2012

Cryogenic 0.5-13 GHz low noise amplifier with 3 K mid-band noise temperature

Joel Schleeh, Niklas Wadefalk, Per-Åke Nilsson et al
IEEE MTT-S International Microwave Symposium Digest
Paper i proceeding
2012

Cryogenic InAs/AlSb HEMT Wideband Low-Noise IF Amplifier for Ultra-Low-Power Applications

Giuseppe Moschetti, Niklas Wadefalk, Per-Åke Nilsson et al
IEEE Microwave and Wireless Components Letters. Vol. 22 (3), p. 144-146
Artikel i vetenskaplig tidskrift
2012

Ultralow-Power Cryogenic InP HEMT With Minimum Noise Temperature of 1 K at 6 GHz

Joel Schleeh, Göran Alestig, John Halonen et al
IEEE Electron Device Letters. Vol. 33 (5), p. 664-666
Artikel i vetenskaplig tidskrift
2012

A Broadband, Low Noise, Integrated 340 GHz Schottky Diode Receiver

Peter Sobis, Niklas Wadefalk, Anders Emrich et al
IEEE Microwave and Wireless Components Letters. Vol. 22 (7), p. 366-368
Artikel i vetenskaplig tidskrift
2011

Single-Chip 220-GHz Active Heterodyne Receiver and Transmitter MMICs With On-Chip Integrated Antenna

Morteza Abbasi, Sten Gunnarsson, Niklas Wadefalk et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 59 (2), p. 466-478
Artikel i vetenskaplig tidskrift
2011

InAs/AlSb HEMTs for cryogenic LNAs at ultra-low power dissipation

Giuseppe Moschetti, Niklas Wadefalk, Per-Åke Nilsson et al
Solid-State Electronics. Vol. 64 (1), p. 47-53
Artikel i vetenskaplig tidskrift
2011

Integrated front-ends up to 200 GHz

Vessen Vassilev, Niklas Wadefalk, Morteza Abbasi et al
2011 IEEE MTT-S International Microwave Workshop on Millimeter Wave Integration Technologies, IMWS 2011, Sitges, 15 September 2011 through 16 September 2011, p. 57-60
Paper i proceeding
2011

Cryogenic 2-13 GHz Eleven feed for reflector antennas in future wideband radio telescopes

Jian Yang, Miroslav Pantaleev, Per-Simon Kildal et al
IEEE Transactions on Antennas and Propagation. Vol. 59 (6), p. 1918-1934
Artikel i vetenskaplig tidskrift
2011

Passivation of InGaAs/InAlAs/InP HEMTs using Al2O3 atomic layer deposition

Joel Schleeh, John Halonen, Bengt Nilsson et al
Conference Proceedings - International Conference on Indium Phosphide and Related Materials. 2011 Compound Semiconductor Week and 23rd International Conference on Indium Phosphide and Related Materials, CSW/IPRM 2011, Berlin, 22-26 May 2011
Paper i proceeding
2010

Design of cryogenic 2-14 GHz Eleven feed for reflector antennas for future radio telescopes

Jian Yang, Miroslav Pantaleev, Per-Simon Kildal et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Paper i proceeding
2010

A 210 GHz radar system for 3D stand-off detection

Jan Svedin, Staffan Rudner, Gunnar Thordarsson et al
GigaHertz Symposium 2010, p. 71-
Paper i proceeding
2010

Ultra-Wideband Chip Attenuator for Precise Noise Measurements at Cryogenic Temperatures

J. L. Cano, Niklas Wadefalk, J. D. Gallego-Puyol
IEEE Transactions on Microwave Theory and Techniques. Vol. 58 (9), p. 2504-2510
Artikel i övriga tidskrifter
2010

MMIC-Based Components for MM-Wave Instrumentation

Vessen Vassilev, Niklas Wadefalk, Rumen Kozhuharov et al
IEEE Microwave and Wireless Components Letters. Vol. 20 (10), p. 578-580
Artikel i övriga tidskrifter
2010

THE ALLEN TELESCOPE ARRAY TWENTY-CENTIMETER SURVEY-A 690 DEG(2), 12 EPOCH RADIO DATA SET. I. CATALOG AND LONG-DURATION TRANSIENT STATISTICS

S. Croft, G. C. Bower, R. Ackermann et al
Astrophysical Journal. Vol. 719 (1), p. 45-58
Artikel i vetenskaplig tidskrift
2010

MMIC-based receivers for mm-wave radiometry

Vessen Vassilev, Niklas Wadefalk, Rumen Kozhuharov et al
IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2010

THE ALLEN TELESCOPE ARRAY Pi GHz SKY SURVEY. I. SURVEY DESCRIPTION AND STATIC CATALOG RESULTS FOR THE BOOTES FIELD

G. C. Bower, S. Croft, G. Keating et al
Astrophysical Journal. Vol. 725 (2), p. 1792-1804
Artikel i vetenskaplig tidskrift
2010

A low noise integrated 0.3-16 GHz differential amplifier for balanced ultra wideband antennas

Niklas Wadefalk, Per-Simon Kildal, Herbert Zirath
2010 32nd IEEE Compound Semiconductor Integrated Circuit Symposium, CSICS 2010, Monterey, CA, United States, 3-6 October 2010, p. Art. no. 5619677-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2010

Cryogenic 2-14GHz low noise receiver for radio astronomy using Eleven feed

Miroslav Pantaleev, Jian Yang, Per-Simon Kildal et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2010

An experimental 210 GHz radar system for 3D stand-off detection

Jan Svedin, Staffan Rudner, Gunnar Thordarsson et al
35th International Conference on Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010
Paper i proceeding
2009

Design and realization of a linearly polarized Eleven feed for 1-10 GHz

Jian Yang, Chen Xiaoming, Niklas Wadefalk et al
IEEE Antennas and Wireless Propagation Letters. Vol. 8, p. 64-68
Artikel i vetenskaplig tidskrift
2009

The Allen Telescope Array: The First Widefield, Panchromatic, Snapshot Radio Camera for Radio Astronomy and SETI

J. Welch, D. Backer, L. Blitz et al
Proceedings of the IEEE. Vol. 97 (8), p. 1438-1447
Artikel i vetenskaplig tidskrift
2009

InAs/AlSb HEMTs characterised at cryogenic temperatures

Per-Åke Nilsson, Giuseppe Moschetti, Niklas Wadefalk et al
WOCSDICE 2009
Paper i proceeding
2009

Integrated receivers up to 220 GHz utilizing GaAs-mHEMT technology

Herbert Zirath, Niklas Wadefalk, R. Kuzhuharov et al
2009 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2009; Singapore; Singapore; 9 January 2009 through 11 January 2009, p. 225-228
Paper i proceeding
2009

On the status of Low Noise Millimeterwave MMIC Receivers

Herbert Zirath, Niklas Wadefalk, Rumen Kozhuharov et al
APMC: 2009 ASIA PACIFIC MICROWAVE CONFERENCE. Vol. 1-5, p. 1303-1306
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

DC characteristics of InAs/AlSb HEMTs at cryogenic temperatures

Giuseppe Moschetti, Per-Åke Nilsson, Niklas Wadefalk et al
2009 IEEE International Conference on Indium Phosphide & Related Materials, p. 323-5
Paper i proceeding
2009

Developing a cooled 2-14 GHz Eleven feed for SKA and VLBI 2010

Per-Simon Kildal, Jian Yang, Yogesh Karandikar et al
URSI National Radio Science Meeting, Charleston, USA, 1-5 June 2009
Paper i proceeding
2009

Electrical Design of a Cooled 2-14 GHz Eleven Feed for SKA and VLBI 2010

Per-Simon Kildal, Jian Yang, Yogesh Karandikar et al
IVS VLBI2010 Workshop on Future Radio Frequencies and Feeds (FRFF), March 18 - 21, 2009, Wettzell, Germany
Paper i proceeding
2009

Development of a coolable 2-14 GHz Eleven feed for future radio telescopes for SKA and VLBI 2010

Per-Simon Kildal, Jian Yang, Yogesh Karandikar et al
International Conference on Electromagnetics in Advanced Applications (ICEAA 2009), Torino, Italy, September 14-18, 2009. Vol. 1-2, p. 522-524
Paper i proceeding
2009

Metamorphic HEMT technology for low-noise applications

A. Leuther, A. Tessmann, I. Kallfass et al
Conference Proceedings - International Conference on Indium Phosphide and Related Materials, p. 188-191
Paper i proceeding
2008

A 220 GHz Single-Chip Receiver MMIC with Integrated Antenna

Sten Gunnarsson, Niklas Wadefalk, Iltcho Angelov et al
IEEE Microwave and Wireless Components Letter. Vol. 18
Artikel i vetenskaplig tidskrift
2008

A G-band (140 – 220 GHz) Microstrip MMIC Mixer operating in both Resistive and Drain-Pumped Mode

Sten Gunnarsson, Niklas Wadefalk, Iltcho Angelov et al
Proc. of 2008 IEEE MTT-S International Microwave Symposium
Paper i proceeding
2008

Report on Developing Decade Bandwidth Eleven Feeds for Radio Telescopes such as SKA and VLBI 2010

Jian Yang, Chen Xiaoming, Niklas Wadefalk et al
30th ESA Antenna Workshop on Antennas for Earth Observation, Science, Telecommunication and Navigation Space Missions, 27-30 May 2008, ESA/ESTEC Noordwijk
Paper i proceeding
2008

A 220 GHz (G-band) Microstrip MMIC Single-Ended Resistive Mixer

Sten Gunnarsson, Niklas Wadefalk, Iltcho Angelov et al
IEEE Microwave and Wireless Components Letter. Vol. vol. 18, no. 3
Artikel i vetenskaplig tidskrift
2008

Development of a 210 GHz near-field measurement radar system based on an antenna-integrated MMIC receiver front-end and an ultra-compact HBV transmitter source module

Jan Svedin, Jan Kjellgren, Staffan Rudner et al
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7117, p. Art. no. 71170H-
Paper i proceeding
2007

Cryogenic X-Band Low Noise Amplifiers

Naiara Goia, Matthew Kelly, Anna Malmros et al
4th ESA International Workshop on Tracking, Telemetry & Command Systems for Space Applications
Paper i proceeding
2006

Noise optimization of InP HEMTs

Mikael Malmkvist, Anna Malmros, Niklas Wadefalk et al
Proc. European Workshop on Compound Semiconductor Devices and Integrated Circuits, p. 97-99
Paper i proceeding
2006

A comparison of cryogenically cooled pseudomorphic and lattice matched InP HEMTs: Implementation in an ultra-low noise amplifier

Anna Malmros, Niklas Wadefalk, Piotr Starski et al
Asia Pacific Microwave Conference
Paper i proceeding
2006

Low-noise 6-8 GHz receiver

J. D. Pandian, L. Baker, G. Cortes et al
IEEE Microwave Magazine. Vol. 7 (6), p. 74-84
Artikel i vetenskaplig tidskrift
2004

Cryogenic 2--4 GHz ultra low noise amplifier

Anders Mellberg, Niklas Wadefalk, Iltcho Angelov et al
IEEE MTT-S International Microwave Symposium Digest, p. 161-163
Paper i proceeding
2003

The Odin satellite - I. Radiometer design and test

U. Frisk, MAGNE HAGSTRÖM, J. Ala-Laurinaho et al
Astronomy and Astrophysics. Vol. 402 (3), p. L27-L34
Artikel i vetenskaplig tidskrift

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