Jussi Varis

2013

Passive three-colour submillimetre-wave video camera

Luukanen, A., Kiuru, T., Leivo, M., Rautiainen, A. & Varis, J., 2013, Passive and Active Millimeter-Wave Imaging XVI. Wikner, D. A. & Luukanen, A. R. (eds.). International Society for Optics and Photonics SPIE, 87150F. (Proceedings of SPIE, Vol. 8715).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

19 Citations (Scopus)

2012

Measured performance of a high-resolution passive video-rate submillimeter-wave imaging system demonstrator for stand-off imaging

Luukanen, A., Grönholm, M., Leivo, M., Toivanen, H., Rautiainen, A. & Varis, J., 2012, Proceedings of SPIE 8362: Passive and Active Millimeter-Wave Imaging XV. Wikner, D. A. (ed.). Bellingham, Washington, USA: International Society for Optics and Photonics SPIE, 6 p. 836209. (Proceedings of SPIE, Vol. 8362).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

16 Citations (Scopus)

Self-Actuation Tests of Ohmic Contact and Capacitive RF-MEMS Switches for Wideband RF Power Limiter Circuits

Malmqvist, R., Jonsson, R., Samuelsson, C., Reyaz, S., Ouacha, A., Rantakari, P., Vähä-Heikkilä, T., Varis, J. & Rydberg, J., 2012, Proceedings of the 2012 International Semiconductor Conference, CAS 2012. IEEE Institute of Electrical and Electronic Engineers, p. 217-220

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

9 Citations (Scopus)

2011

Reconfigurable wideband LNAs using ohmic contact and capacitive RF-MEMS switching circuits

Malmqvist, R., Samuelsson, C., Simon, W., Smith, D., Rantakari, P., Vähä-Heikkilä, T., Reyaz, S., Varis, J. & Baggen, R., 2011, Proceedings of the 6th European Microwave Integrated Circuits Conference. European Microwave Association (EuMA), p. 160-163

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

5 Citations (Scopus)

2010

Design, packaging and reliability aspects of RF MEMS circuits fabricated using a GaAs MMIC foundry process technology

Malmqvist, C., Samuelsson, C., Simon, W., Rantakari, P., Smith, D., Lahdes, M., Lahti, M., Vähä-Heikkilä, T., Varis, J. & Baggen, R., 2010, The 40th European Microwave Conference. IEEE Institute of Electrical and Electronic Engineers, p. 85-88

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

20 Citations (Scopus)

Ka-band RF MEMS phase shifters for energy starved millimetre-wave radar sensors

Malmqvist, R., Samuelsson, C., Carlegrim, B., Rantakari, P., Vähä-Heikkilä, T., Rydberg, A. & Varis, J., 2010, Proceedings of the 2010 International Semiconductor Conference, CAS 2010. Sinaia, Romania: IEEE Institute of Electrical and Electronic Engineers, p. 261-264

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

10 Citations (Scopus)

RF MEMS and MMIC based Reconfigurable Matching Networks for Adaptive Multi-Band RF Front-Ends

Malmqvist, R., Samuelsson, C., Rantakari, P., Vähä-Heikkilä, T., Smith, D., Varis, J. & Baggen, R., 2010, Proceedings of the IEEE International Microwave Workshop Series on RF Front-Ends for Software Defined and Cognitive Radio Solutions, IMWS 2010. IEEE Institute of Electrical and Electronic Engineers, 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

21 Citations (Scopus)

2009

A 20 GHz Antenna Integrated RF MEMS Based Router and Switching Networks Made on Quartz

Malmqvist, R., Samuelsson, C., Carlegrim, B., Cheng, S., Rydberg, A., Hanke, U., Holter, B., Sagberg, H., Rantakari, P., Vähä-Heikkilä, T. & Varis, J., 2009, Smart Systems Integrations, 10 – 11 March 2009, Brussels, Belgium. Brussels, 2 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Open Access

RF MEMS Based Impedance Matching Networks for Tunable Multi-Band Microwave Low Noise Amplifiers

Malmqvist, R., Rantakari, P., Samuelsson, C., Lahti, M., Cheng, S., Saijets, J., Vähä-Heikkilä, T., Rydberg, A. & Varis, J., 2009, 2009 International Semiconductor Conference (CAS 2009). IEEE Institute of Electrical and Electronic Engineers, p. 303-306

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Open Access

17 Citations (Scopus)

System Analysis of a Ka-band Multi-Functional Radar Sensor based on RF MEMS Phase Shifters

Malmqvist, R., Saijets, J., Rantakari, P., Boman, T., Samuelsson, C., Gustafsson, A., Vähä-Heikkilä, T. & Varis, J., 2009, Proceedings of the 10th International Symposium on RF MEMS and RF Microsystems, MEMSWAVE 2009. Trento, p. 147-150

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

2006

Calibration and testing of the Planck-LFI QM instrument

Mennella, A., Aja, B., Artal, E., Balasini, M., Baldan, G., Battaglia, P., Bernardino, T., Bersanelli, M., Blackhurst, E., Boschini, L., Burigana, C., Butler, R. C., Cappellini, B., Colombo, F., Cuttaia, F., D'Arcangelo, O., Donzelli, S., Davis, R., De La Fuente, L. & Ferrari, F. & 51 others, Figini, L., Fogliani, S., Franceschet, C., Franceschi, E., Gaier, T., Galeotta, S., Garavaglia, S., Gregorio, A., Guerrini, M., Hoyland, R., Hughes, N., Jukkala, P., Kettle, D., Laaninen, M., Lapolla, P. M., Lawson, D., Leonardi, R., Leutenegger, P., Mari, G., Meinhold, P., Miccolis, M., Maino, D., Malaspina, M., Mandolesi, N., Maris, M., Martinez-Gonzalez, E., Morgante, G., Pagan, L., Pasian, F., Platania, P., Pecora, M., Pezzati, S., Popa, L., Poutanen, T., Pospieszalski, M., Roddis, N., Salmon, M., Sandri, M., Silvestri, R., Simonetto, A., Sozzi, C., Stringhetti, L., Terenzi, L., Tomasi, M., Tuovinen, J., Valenziano, L., Varis, J., Villa, F., Wilkinson, A., Winder, F. & Zacchei, A., 2006, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter: Proceedings of SPIE Volume 6265. International Society for Optics and Photonics SPIE, 12 p. 62650G. (Proceedings of SPIE, Vol. 6265).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

2 Citations (Scopus)

Results of the planck 70 GHz receiver protoflight model test campaign

Laaninen, M., Jukkala, P., Hughes, N., Varis, J. & Tuovinen, J., 2006, Proceedings of the 4th ESA Workshop on Millimetre-Wave Technology and Applications. European Space Agency (ESA), p. 475-479

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

2005

MEMS based impedance tuners

Vähä-Heikkilä, T., Rintamäki, M., Varis, J. & Tuovinen, J., 2005, Proceedings of Joint 9th International Conference on Electromagnetics in Advanced Applications ICEAA 05 and 11th European Electromagnetic Structures Conference EESC 05: Torino, Itayl, 12-16 September 2005. p. 1029-1032

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

MEMS based tunable circuits for millimetre wave systems

Vähä-Heikkilä, T., Varis, J. & Tuovinen, J. (Corresponding author), 2005, Proceedings of XXVIII URSI General Assembly: New Delhi, India, 23-29 October 2005. International Union of Radio Science (URSI), 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Open Access

Planck mission with cryogenic low-noise receiver at 70 GHz

Varis, J., Hughes, N., Jukkala, P., Laaninen, M., Kilpiä, V.-H., Pulli, T., Lyytikäinen, A. & Tuovinen, J., 2005, GigaHertz 2005 Conference Proceedings. Uppsala universitet, p. 54-57

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

W-band RF MEMS double and triple-stub impedance tuners

Vähä-Heikkilä, T., Varis, J., Tuovinen, J. & Rebeiz, G. M., 2005, IEEE MTT-S International Microwave Symposium Digest 2005. IEEE Institute of Electrical and Electronic Engineers, p. 923-926

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

32 Citations (Scopus)

2004

A Reconfigurable 6-20 GHz RF MEMS impedance tuner

Vähä-Heikkilä, T., Varis, J., Tuovinen, J. & Rebeiz, G. M., 2004, 2004 IEEE MTT-S International Microwave Symposium Digest. IEEE Institute of Electrical and Electronic Engineers, p. 729-732 (IEEE MTT-S International Microwave Symposium, Vol. 2004).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

42 Citations (Scopus)

A V-band single-stub impedance tuner

Vähä-Heikkilä, T., Varis, J., Tuovinen, J. & Reibeiz, G. M., 2004, 34th European Microwave Conference 2004. IEEE Institute of Electrical and Electronic Engineers, p. 1301-1304

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

A V-band single-stub RF MEMS impedance tuner

Vähä-Heikkilä, T., Varis, J., Tuovinen, J. & Rebeiz, G. M., 2004, Conference Proceedings : 34th European Microwave Conference. Horizon House, Vol. 1. p. 1301-1304 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

11 Citations (Scopus)

Multi-Band and Reconfigurable Radio Systems Based on MEMS Circuits

Vähä-Heikkilä, T., Rintamäki, M., Varis, J. & Tuovinen, J., 2004, URSI/IEEE XXIX Convention on Radio Science. Espoo: VTT Technical Research Centre of Finland, p. 15-18 (VTT Symposium; No. 235).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Open Access

2 Citations (Scopus)

Planck - Mission and Technology

Jukkala, P., Hughes, N., Laaninen, M., Kilpiä, V.-H., Tuovinen, J., Varis, J. & Karvonen, A., 2004, URSI/IEEE XXIX Convention on Radio Science. Espoo: VTT Technical Research Centre of Finland, p. 133-133 (VTT Symposium; No. 235).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Open Access

Planck mission with advanced cryogenic mm- and submm-wave receiver arrays

Tuovinen, J., Varis, J., Hughes, N., Jukkala, P., Sjöman, P., Ovaska, S., Laaninen, M., Mandolesi, N., Bersanelli, M., Butler, C. & Hoyland, R., 2004, 2004 IEEE Aerospace Conference Proceedings. IEEE Institute of Electrical and Electronic Engineers, Vol. 2. p. 741-746 (IEEE Aerospace Conference Proceedings, Vol. 2004).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

2003

A 6-24 GHz tunable MEMS impedance matching network

Vähä-Heikkilä, T., Rizk, J., Varis, J. & Tuovinen, J., 2003, Proceedings of 3rd ESA Workshop On Millimetre Wave Technology and Applications: Circuits, systems, and measurement techniques. Mallat, J. A., Räisänen, A. & Tuovinen, J. (eds.). European Space Agency (ESA), p. 491-496 (ESA Conference Proceedings, Vol. 212).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Advances in Millimetre Wave Low Noise Receivers and On-Wafer Test Methods

Tuovinen, J., Kantanen, M., Karttaavi, T., Karvonen, A., Lahdes, M., Varis, J., Vähä-Heikkilä, T., Hughes, N., Jukkala, P. & Sjöman, P., 2003, Proceedings of the 5th Topical Symposium on Millimeter Waves, TSMMW 2003. p. 171-174

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Capacitive RF MEMS power sensors

Vähä-Heikkilä, T., Kyynäräinen, J., Dekker, J., Pekko, P., Guillaume, N., Oja, A., Varis, J. & Seppä, H., 2003, Proceedings of 3rd ESA Workshop On Millimetre Wave Technology and Applications: Circuits, systems, and measurement techniques. Mallat, J., Räisänen, A. & Tuovinen, J. (eds.). European Space Agency (ESA), p. 503-508 (ESA Conference Proceedings, Vol. 212).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Cryogenic on-wafer measurements at W-band and at 20-295 K

Vähä-Heikkilä, T., Varis, J., Hakojärvi, H. & Tuovinen, J., 2003, Proceedings of 3rd ESA Workshop On Millimetre Wave Technology and Applications: Circuits, systems, and measurement techniques. Mallat, J., Räisänen, A. & Tuovinen, J. (eds.). European Space Agency (ESA), p. 435-439 (ESA Conference Proceedings, Vol. 212).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Planck low frequency instrument (LFI) 70 GHz receiver modules

Sjöman, P., Hughes, N. J., Jukkala, P., Ovaska, S., Varis, J. & Tuovinen, J., 2003, Proceedings of the International Conference on Electromagnetics in Advanced Applications, ICEAA '03. p. 351-354 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Technology for millimetre wave radiometers

Tuovinen, J., Hughes, N., Jukkala, P., Kangaslahti, P., Karttaavi, T., Sjöman, P. & Varis, J., 2003, Proceedings of the 33rd European Microwave Conference. IEEE Institute of Electrical and Electronic Engineers, Vol. 2. p. 883-886

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

8 Citations (Scopus)

Verification of cryogenic on-wafer measurements for space applications

Karvonen, A., Varis, J., Hakojärvi, H. & Tuovinen, J., 2003, 54th International Astronautical Congress. American Institute of Aeronautics and Astronautics (AIAA), p. 1375-1383

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

Wideband cryogenic on-wafer measurements at 20 - 295 K and 50-110 GHz

Vähä-Heikkilä, T. (Corresponding author), Varis, J., Hakojärvi, H. & Tuovinen, J., 2003, Proceedings of the 33rd European Microwave Conference 2003. IEEE Institute of Electrical and Electronic Engineers, p. 1167-1170

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

2002

Capacitive mems power sensor

Vähä-Heikkilä, T., Kyynäräinen, J., Oja, A., Varis, J. & Seppä, H., 2002, Proceedings of the 3rd Workshop on MEMS for Millimeterwave Communications, MEMSWAVE 2002: Heraklion, Greece, 26-28 June 2002.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

Design of capacitive RF mems power sensor

Vähä-Heikkilä, T., Kyynäräinen, J., Oja, A., Varis, J. & Seppä, H., 2002, Digest of technical papers: URSI/IEEE XXVII Convention on Radio Science. Espoo, Finland, 17-18 October 2002. Säily, J. & Tretyakov, S. A. (eds.). Helsinki University of Technology, p. 201-203 (Helsinki University of Technology: Radio Laboratory publications. Report S; No. 257).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

2001

Millimetre wave on-wafer measurements

Vähä-Heikkilä, T., Lahdes, M., Varis, J., Kantanen, M., Tuovinen, J., Karttaavi, T. & Hakojärvi, H., 2001, URSI XXVI Convention on Radio Science and Second Finnish Wireless Communications Workshop: Digest of technical papers. Tampere: Tampere University of Technology, p. 93-97

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

W-band on-wafer noise parameter measurements

Vähä-Heikkilä, T., Lahdes, M., Varis, J., Kantanen, M., Tuovinen, J., Karttaavi, T. & Hakojärvi, H., 2001, 31st European Microwave Conference. CMP Europe Ltd, p. 355-358

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

2000

Methods for on-wafer testing of cryogenic integrated circuits at millimetre waves

Tuovinen, J., Varis, J., Lahdes, M. & Hakojärvi, H., 2000, 4th European Workshop on Low Temperature Electronics - WOLTE 4: Noordwijk, the Netherlands, 21-23 June 2000. European Space Agency (ESA), (ESA Conference Proceedings; No. WPP-171).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Jussi Varis

Research output

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