Aleksi Tamminen

Research Fellow

Research outputs

  1. 2014
  2. Published

    Antenna pattern retrieval from reflection coefficient measurements with reflective loads

    Du, Z., Viikari, V., Ala-Laurinaho, J., Tamminen, A. & Räisänen, A., 2014, In : PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER. 148, 148, p. 15-22

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Developments of a reflectarray and its element characterization at millimeter wavelengths

    Tamminen, A., Ala-Laurinaho, J., Gallacher, T. F. & Räisänen, A. V., 2014, SPIE Defense, Security and Sensing, Baltimore, MD, USA, May 2014. A. Wikner, D. & R. Luukanen, A. (eds.). Baltimore, MD, USA

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  4. Published

    Multifunctional stretchable metasurface for the THz range

    Morits, D., Morits, M., Ovchinnikov, V., Omelyanovich, M., Tamminen, A., Tretyakov, S. & Simovski, C., 2014, In : Journal of Optics. 16, 3, 032001.

    Research output: Contribution to journalArticleScientificpeer-review

  5. 2013
  6. Published

    Approximate holographic imaging at submillimeter-waves

    Tamminen, A., Ala-Laurinaho, J. & Räisänen, A., 2013, XXXIII Finnish URSI Convention on Radio Science and SMARAD Seminar, Espoo, Finland, April 24-25, 2013. Wallén, H. & Sihvola, A. (eds.). Espoo, Finland, p. 173-176

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

  7. Published

    Calibration method for near-field measurement used in reflectarray characterization

    Mäkelä, S., Tamminen, A., Ala-Laurinaho, J. & Räisänen, A. V., 2013, 43rd European Microwave Conference (EuMW 2013), Nuremberg, Germany, October 6-11, 2013. Nürnberg, Germany: EuMA, p. 183-187

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  8. Published

    Design and optimization of reconfigurable reflectarray element with MEMS phase shifter

    Du, Z., Tamminen, A., Ala-Laurinaho, J., Säily, J., Rantakari, P., Luukanen, A. & Räisänen, A. V., 2013, 7th European Conference on Antennas and Propagation (EuCAP 2013), Gothenburg, Sweden, April 8-12, 2013. Gothenburg, Sweden, p. 2362-2366

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  9. Published

    Developments in imaging at millimeter and submillimeter wavelengths

    Tamminen, A., 2013, Aalto University. 177 p.

    Research output: ThesisDoctoral ThesisCollection of Articles

  10. Published

    Multi-band imaging and adaptive beam-steering techniques for the submillimetre-wave range

    Luukanen, A., Ala-Laurinaho, J., Häkli, J., Gomes-Martins, D., Kiuru, T., Leivo, M., Rautiainen, A., Säily, J., Tamminen, A., Toivanen, H. & 2 others, Tuovinen, R. & Räisänen, A., 2013, 7th European Conference on Antennas and Propagation (EuCAP 2013), Gothenburg, Sweden, April 8-12, 2013. Gothenburg, Sweden, p. 1946-1948 (Proceedings of the European Conference on Antennas and Propagation).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  11. Published

    Near-field measurements of submillimeter-wave reflectarrays

    Tamminen, A., Ala-Laurinaho, J., Mäkelä, S., Gomes-Martins, D., Häkli, J., Koivisto, P., Rantakari, P., Säily, J., Tuovinen, R., Luukanen, A. R. & 2 others, Sipilä, M. & Räisänen, A. V., 2013, SPIE Defense, Security, and Sensing 2013, Passive and Active Millimeter-Wave Imaging XVI, Baltimore, United States, 29 April - 3 May 2013. Baltimore, United States

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  12. Published

    Reflectarray design for 120-GHz radar application: measurement results

    Tamminen, A., Mäkelä, S., Ala-Laurinaho, J., Häkli, J., Koivisto, P., Rantakari, P., Säily, J., Luukanen, A. & Räisänen, A. V., 2013, In : IEEE Transactions on Antennas and Propagation. 61, 10, p. 5036-5047

    Research output: Contribution to journalArticleScientificpeer-review

  13. 2012
  14. Published

    Antennas for electronic beam steering and focusing at millimeter wavelengths

    Räisänen, A. V., Ala-Laurinaho, J., Chicherin, D., Du, Z., Generalov, A., Karttunen, A., Lioubtchenko, D., Mallat, J., Tamminen, A. & Zvolensky, T., 2012, ICEAA International Conference on Electromagnetics in Advanced Applications (ICEAA 2012), Cape Town, South Africa, 2-7 September, 2012. Cape Town, South Africa, p. 1235-1237

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  15. Published

    Beam-Steering antennas at Millimeter Wavelengths

    Räisänen, A., Ala-Laurinaho, J., Chicherin, D., Du, Z., Generalov, A., Karttunen, A., Lioubtchenko, D., Mallat, J., Tamminen, A. & Zvolensky, T., 2012, GSMM Global Symposium on Millimeter-Waves 2012, Harbin, China, May 27-30, 2012. Harbin, China

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  16. Published

    Developments towards real-time active and passive submillimetre-wave imaging for security applications

    Luukanen, A., Ala-Laurinaho, J., Leivo, M., Gomes-Martins, D., Grönholm, M., Häkli, J., Koivisto, P., Mäkelä, S., Pursula, P., Rantakari, P. & 7 others, Sipilä, M., Säily, J., Tamminen, A., Toivanen, H., Tuovinen, R., Rautiainen, A. & Räisänen, A., 2012, MTT IMS2012 International Microwave Symposium, Montréal, Canada, June 17-22, 2012. Montréal, Canada, p. 1-3

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  17. Published

    Millimeter-wave reflectarray for beam-steering applications

    Tamminen, A., Ala-Laurinaho, J., Mäkelä, S., Räisänen, A., Gomes-Martins, D., Häkli, J., Koivisto, P., Rantakari, P., Säily, J., Tuovinen, R. & 1 others, Luukanen, A., 2012, EuMIC The 7th European Microwave Integrated Circuits Conference (EuMIC 2012), Amsterdam, The Netherlands, 29-30 October, 2012. Amsterdam, The Netherlands, p. 219-222

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  18. Published

    Near-field measurements of a millimeter-wave reflectarray at 120 GHz

    Mäkelä, S., Ala-Laurinaho, J., Tamminen, A., Räisänen, A., Koivisto, P., Säily, J., Häkli, J., Rantakari, P., Tuovinen, R. & Luukanen, A., 2012, 42nd European Microwave Conference, Amsterdam, The Netherlands, 29 Oct - 1 Nov, 2012. Amsterdam, The Netherlands, p. 807-810

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  19. Published

    Reflectarray for 120-GHz beam steering application: design, simulations, and measurements

    Tamminen, A., Ala-Laurinaho, J., Gomes-Martins, D., Häkli, J., Koivisto, P., Kärkkäinen, M., Mäkelä, S., Pursula, P., Rantakari, P., Sipilä, M. & 6 others, Säily, J., Tuovinen, R., Varonen, M., Halonen, K. A. I., Luukanen, A. & Räisänen, A. V., 2012, SPIE Defense, Security, and Sensing 2012, Passive and Active Millimeter-Wave Imaging XV, Baltimore, USA, April 26th 2012. Baltimore, USA

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  20. Published

    THz holographic imaging: A spatial-domain technique for phase retrieval and image reconstruction

    Enayati, A., Tamminen, A., Ala-Laurinaho, J., Räisänen, A. V., Vandenbosch, G. A. E. & De Raedt, W., 2012, MTT IMS2012 International Microwave Symposium, Montréal, Canada, June 17-22, 2012. Montréal, Canada, p. 1-3

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  21. Published

    Towards video rate imaging at submillimetre-waves -- Finnish developments of passive multi-band imaging and holographic submmwave beam steering at VTT

    Luukanen, A., Ala-Laurinaho, J., Häkli, J., Gomes-Martins, D., Kiuru, T., Koivisto, P., Leivo, M., Rautiainen, A., Säily, J., Tamminen, A. & 3 others, Toivanen, H., Tuovinen, R. & Räisänen, A. V., 2012, APMC Asia-Pacific Microwave Conference 2012 (APMC2012), Kaohsiung, Taiwan, Dec. 4-7, 2012. Kaohsiung, Taiwan, p. 782-784 (Asia Pacific Microwave Conference-Proceedings).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  22. 2011
  23. Published

    Experimental determination of DRW antenna phase center at mm-wavelengths using a planar scanner: comparison of different methods

    Padilla, P., Pousi, J. P., Tamminen, A., Mallat, J., Ala-Laurinaho, J., Sierra-Castaner, M. & Räisänen, A. V., 2011, In : IEEE Transactions on Antennas and Propagation. 59, 8, p. 2806-2812

    Research output: Contribution to journalArticleScientificpeer-review

  24. Published

    Rapid beamsteering reflectarrays for mm-wave and submm-wave imaging radars

    Luukanen, A., Ala-Laurinaho, J., Gomes Martins, D., Häkli, J., Koivisto, P., Pursula, P., Rantakari, P., Säily, J., Tamminen, A., Tuovinen, R. & 1 others, Sipilä, M., 2011, SPIE Defense, Security, and Sensing Conference, Orlando, Florida, USA, April 25-29, 2011. Wikner, D. A. & Luukanen, A. R. (eds.). Orlando, Florida, USA, 80220M. (Proceedings of SPIE; vol. 8022).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  25. Published

    Recent activities on antenna measurements at mm- and submm-wavelengths at Aalto University

    Räisänen, A. V., Ala-Laurinaho, J., Karttunen, A., Mallat, J., Pousi, P. & Tamminen, A., 2011, EUCAP 5th European Conference on Antennas and Propagation (EuCAP 2011), Rome, Italy, Apr. 11-15, 2011. Rome, Italy

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  26. Published

    Reflectarray design for 120-GHz MMID application: simulation results

    Tamminen, A., Ala-Laurinaho, J., Häkli, J., Koivisto, P., Säily, J., Luukanen, A. & Räisänen, A. V., 2011, GSMM The Millimetre Wave Days: The 6th ESA Workshop on Millimetre-Wave Technology and Applications, and The 4th Global Symposium on Millimeter Waves GSMM2011, Espoo, Finland, May 23 25, 2011. Espoo, Finland

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  27. 2010
  28. Published

    High-gain antenna measurements at THz

    Räisänen, A., Ala-Laurinaho, J., Karttunen, A., Mallat, J., Tamminen, A. & Vaaja, M., 2010, GSMM Global Symposium on Millimeter Waves 2010 (GSMM2010), Incheon, South Korea, April 14-16, 2010. Incheon, South Korea, p. 259-260

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  29. Published

    Indirect holographic imaging: evaluation of image quality at 310 GHz

    Tamminen, A., Ala-Laurinaho, J. & Räisänen, A., 2010, SPIE Defense, Security and Sensing, Orlando, Florida, USA, April 5-9, 2010. Orlando, Florida, USA, 76700A. (Proceedings of SPIE; vol. 7670).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  30. Published

    Measurements of high-gain antennas at THz frequencies

    Räisänen, A., Ala-Laurinaho, J., Karttunen, A., Mallat, J., Tamminen, A. & Vaaja, M., 2010, EUCAP The 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010. Barcelona, Spain, p. pp. C34P1-3

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  31. Published

    Mm-wave DRW antenna phase centre determination

    Padilla, P., Pousi, J. P., Tamminen, A., Mallat, J., Ala-Laurinaho, J., Sierra-Castañer, M. & Räisänen, A., 2010, EUCAP The 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010. Barcelona, Spain, 4 p. Thur-64

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  32. Published

    Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications

    Luukanen, A., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., Ala-Laurinaho, J., Räisänen, A., Dietlein, C. & Grossman, E., 2010, International Workshop on Antenna Technology iWAT, Lisbon, Portugal, March 1-3, 2010. Lisbon, Portugal, p. 1-4

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  33. Published

    Passive terahertz camera for standoff security screening

    Grossman, E., Dietlein, C., Ala-Laurinaho, J., Leivo, M., Grönberg, L., Grönholm, M., Lappalainen, P., Rautiainen, A., Tamminen, A. & Luukanen, A., 2010, In : Applied Optics. 49, 19, p. E106-E120

    Research output: Contribution to journalArticleScientificpeer-review

  34. Published

    Passive, video-rate THz imaging system for stand-off security screening

    Luukanen, A., Ala-Laurinaho, J., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., Räisänen, A., Dietlein, C. & Grossman, E., 2010, GSMM Global Symposium on Millimeter Waves 2010 (GSMM2010), Incheon, South Korea, April 14-16, 2010. Incheon, South Korea, p. 13-15

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  35. Published

    Real-time passive terahertz imaging system for standoff concealed weapons imaging

    Luukanen, A., Grönberg, L., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., Ala-Laurinaho, J., Dietlein, C. & Grossman, E., 2010, SPIE Defense, Security and Sensing, Orlando, Florida, USA, April 5-9, 2010. Orlando, Florida, USA, 767004. (Proceedings of SPIE; vol. 7670).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  36. Published

    Submillimeter-wave power measurements with commercial infra-red detectors

    Tamminen, A., Ala-Laurinaho, J. & Räisänen, A., 2010, EuRAD 7th European Radar Conference, Paris, France, September 30 - October 1, 2010. Paris, France: European Microwave Association, p. 288-291 (European Radar Conference EuRAD).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  37. Published

    Wide-band measurements of antenna-coupled microbolometers for THz imaging

    Tamminen, A., Ala-Laurinaho, J., Mallat, J., Luukanen, A., Grossman, E. & Räisänen, A., 2010, GSMM Global Symposium on Millimeter Waves 2010 (GSMM2010), Incheon, South Korea, April 14-16, 2010. Incheon, South Korea, p. 245-248

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  38. Published

    Wide-band measurements of antenna-coupled microbolometers for THz imaging

    Tamminen, A., Ala-Laurinaho, J., Mallat, J., Luukanen, A., Grossman, E. & Räisänen, A., 2010, In : Journal of Electromagnetic Engineering and Science. 10, 3, p. 132-137

    Research output: Contribution to journalArticleScientificpeer-review

  39. 2009
  40. Published

    Antenna tests with a hologram-based CATR at 650 GHz

    Karttunen, A., Ala-Laurinaho, J., Vaaja, M., Koskinen, T., Häkli, J., Lönnqvist, A., Mallat, J., Tamminen, A., Viikari, V. & Räisänen, A. V., 2009, In : IEEE Transactions on Antennas and Propagation. 57, 3, p. 711-720

    Research output: Contribution to journalArticleScientificpeer-review

  41. Published

    Characterization of antenna-coupled microbolometers for THz-imaging

    Tamminen, A., Ala-Laurinaho, J., Mallat, J., Luukanen, A., Grossman, E. & Räisänen, A., 2009, 5th ESA Workshop on Millimetre Wave Technology and Applications and 31st ESA Antenna Workshop, Noordwijk, The Netherlands, May 18-20, 2009. Noordwijk, The Netherlands, p. 441-446

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  42. 2008
  43. Published

    Imaging with Indirect Holographic Method at 310 GHz

    Tamminen, A., Ala-Laurinaho, J. & Räisänen, A. V., 2008, URSI Finnish XXXI Convention on Radio Science and Electromagnetics 2008 Meeting, Espoo, Finland, 28 October, 2008. Praks, J. & Sihvola, A. (eds.). Espoo, Finland, p. 31-32

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  44. Published

    Indirect Holographic Imaging at 310 GHz

    Tamminen, A., Ala-Laurinaho, J. & Räisänen, A. V., 2008, 5th European Radar Conference, Amsterdam, The Netherlands, 30-31 October, 2008. Amsterdam, the Netherlands: European Microwave Association, p. 168-171

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  45. Published

    Mm- and submm-wave research activities at Millilab and SMARAD

    Räisänen, A. V., Ala-Laurinaho, J., Chicherin, D., Dudorov, S., Karttunen, A., Lioubtchenko, D., Luukkonen, O., Mallat, J., Pousi, P. & Tamminen, A., 2008, 2008 Global Symposium on Millimeter Waves, Nanjing International Exhibition Center, Nanjing, China, April 21-24, 2008. Nanjing, China, p. 136-137

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  46. Published

    Monostatic Reflectivity and Transmittance of Radar Absorbing Materials at 650 GHz

    Tamminen, A., Lönnqvist, A., Mallat, J. & Räisänen, A., 2008, In : IEEE Transactions on Microwave Theory and Techniques. 56, 3, p. 632-637

    Research output: Contribution to journalArticleScientificpeer-review

  47. Published

    Reflection-type phase hologram for beam shaping: experimental results at 310 GHz

    Tamminen, A., Karttunen, A., Vaaja, M., Noponen, E., Ala-Laurinaho, J., Mallat, J. & Räisänen, A. V., 2008, 30th ESA Antenna Workshop on Antennas for Earth Observation, Science, Telecommunication and Navigation Space Missions, ESA, Noorwijk, The Netherlands, 27-30 May, 2008. Noorwijk, The Netherlands, p. 470-473

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  48. 2007
  49. Published

    Antenna tests at 650 GHz in a CATR based on a hologram

    Häkli, J., Koskinen, T., Lönnqvist, A., Ala-Laurinaho, J., Viikari, V., Karttunen, A., Vaaja, M., Mallat, J., Tamminen, A., Noponen, E. & 1 others, Räisänen, A. V., 2007, MINT-MIS 2007 / TSMMW 2007/MilliLab Workshop digest, Seoul, Korea, February 26-27, 2007. Seoul, Korea, p. 219-222

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  50. Published

    Compact antenna test range based on a computer-generated hologram and its use at submillimeter wavelengths

    Räisänen, A. V., Ala-Laurinaho, J., Häkli, J., Karttunen, A., Koskinen, T., Lönnqvist, A., Mallat, J., Noponen, E., Tamminen, A., Vaaja, M. & 1 others, Viikari, V., 2007, LAPC2007, Loughborough Antennas and Propagation Conference, Loughborough, UK, April 2-3, 2007. Loughborough, UK, p. 23-26

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  51. Published

    Design of transmission-type phase holograms for a compact radar-cross-section measurement range at 650 GHz

    Noponen, E., Tamminen, A. & Vaaja, M., 2007, In : Applied Optics. 46, p. 4181-4196

    Research output: Contribution to journalArticleScientificpeer-review

  52. Published

    How to test a high-gain antenna at THz frequencies?

    Räisänen, A. V., Ala-Laurinaho, J., Häkli, J., Karttunen, A., Koskinen, T., Lönnqvist, A., Mallat, J., Noponen, E., Tamminen, A., Vaaja, M. & 1 others, Viikari, V., 2007, The 19th International Conference on Applied Electromagnetics and Communications, ICECom2007, Dubrovnik, Croatia, September 24-26, 2007. Dubrovnik, Croatia, p. 131-134

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  53. Published

    Measurement of a high-gain antenna at 650 GHz in a hologram-based CATR

    Räisänen, A. V., Ala-Laurinaho, J., Häkli, J., Karttunen, A., Koskinen, T., Lönnqvist, A., Mallat, J., Noponen, E., Tamminen, A., Vaaja, M. & 1 others, Viikari, V., 2007, The 18th International Symposium on Space Terahertz Technology, ISSTT2007, Pasadena, California, USA, March 20-22, 2007. Pasadena, California, USA, p. paper 7-3

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  54. Published

    Tests of a 1.5-m reflector antenna in a 650 GHz hologram CATR

    Ala-Laurinaho, J., Häkli, J., Karttunen, A., Koskinen, T., Lönnqvist, A., Mallat, J., Noponen, E., tamminen, A., Vaaja, M., Viikari, V. & 2 others, Räisänen, A. V. & Lemanczyk, J., 2007, The European Conference on Antennas and Propagation (EuCAP2007), Edinburgh, UK, November 12-16, 2007. Edinburgh, UK, p. Tu1.5.2

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  55. Published

    Transmittance and monostatic reflectivity of radar absorbing materials for CATR

    Tamminen, A., Lönnqvist, A., Mallat, J. & Räisänen, A. V., 2007, The European Conference on Antennas and Propagation (EuCAP2007), Edinburgh, UK, November 12-16, 2007. Edinburgh, UK, p. we4.11.4

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  56. 2006
  57. Published

    Monostatic reflectivity measurement of radar absorbing materials at 310 GHz

    Lönnqvist, A., Tamminen, A., Mallat, J. & Räisänen, A. V., 2006, In : IEEE Transactions on Microwave Theory and Techniques. 54, 9, p. 3486-3491

    Research output: Contribution to journalArticleScientificpeer-review

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