19952019

Research output per year

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Research Output

2007

A coupling element based quad-band antenna structure for mobile terminals

Villanen, J., Icheln, C. & Vainikainen, P., 2007, In : Microwave and Optical Technology Letters. 49, 6, p. 1277-1282

Research output: Contribution to journalArticleScientificpeer-review

45 Citations (Scopus)

A wideband study of the bandwidth, SAR and radiation efficiency of mobile terminal antenna structures

Villanen, J., Poutanen, J., Icheln, C. & Vainikainen, P., 2007, Interantional Workshop on Antenna Technologies Conference (IWAT'07), Cambridge, UK, March 21-23, 2007. Cambridge, UK, p. CD-ROM, paper 1569011622.pdf

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

3 Citations (Scopus)

Broadband tuning of mobile terminal antennas

Valkonen, R., Holopainen, J., Icheln, C. & Vainikainen, P., 2007, European Conference on Antennas and Propagation (EuCAP07), Edinburgh, UK, November 11-16, 2007. Edinburgh, UK, p. Tu 2.6.6

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

13 Citations (Scopus)

Channel capacity evaluation of umts multi-antenna systems in indoor and outdoor environments

Diallo, A., Luxey, C., Le Thuc, P., Kossiavas, G., Suvikunnas, P., Mustonen, M., Icheln, C. & Vainikainen, P., 2007, European Conference on Antennas and Propagation (EuCAP07), Edinburgh, UK, November 11-16, 2007. Edinburgh, UK, p. paper Tu1.6.4.

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

Development trends of small antennas for mobile terminals

Vainikainen, P., Villanen, J., Holopainen, J. & Icheln, C., 2007, IEEE AP-S International Symposium 2007, Honolulu, Hawaii, USA, June 10-15, 2007. Honolulu, HAwaii, USA, p. CD-ROM (1-4244-0878-4) paper 0713.pdf

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

Effect of the human body on total radiated power and the 3-D radiation pattern of mobile handsets

Krogerus, J., Toivanen, J., Icheln, C. & Vainikainen, P., 2007, In : IEEE Transactions on Instrumentation and Measurement. 56, 6, p. 2375-2385

Research output: Contribution to journalArticleScientificpeer-review

60 Citations (Scopus)

Evaluation of terminal antennas in wireless mobile communications

Suvikunnas, P., Laitinen, T., Mustonen, M., Kolmonen, V-M., Villanen, J., Geng, S., Ranvier, S., Koivunen, J., Icheln, C. & Vainikainen, P., 2007, International Conference on Electromagnetics in Advanced Applications, 2007, ICEAA 2007, Torino, Italia, September 17-21, 2007. Torino, Italia: COREP, p. 125128

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

From the radiation pattern measurements to true performance evaluation of mobile terminal antennas

Laitinen, T., Krogerus, J., Mustonen, M., Villanen, J., Icheln, C. & Vainikainen, P., 2007, The Second European Conference on Antennas and Propagation EuCAP 2007, Edinburgh, UK, November 11-16, 2007. Edinburgh, UK: Institution of Engineering and Technology, p. paper Th2.7.7.

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

Optium dual-resonant impedance matching of coupling element based mobile terminal antenna structures

Villanen, J., Icheln, C. & Vainikainen, P., 2007, In : Microwave and Optical Technology Letters. 49, 10, p. 2472-2477

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Performance analysis and design aspects of mobile terminal multi-antenna configurations

Villanen, J., Suvikunnas, P., Icheln, C., Ollikainen, J. & Vainikainen, P., 2007, Espoo, (Teknillisen korkeakoulun Radiolaboratorion julkaisuja; no. S 288).

Research output: Working paperProfessional

12 Citations (Scopus)

Quad-band coupling element antenna structure

Ozden, S., Nielsen, B. K., Jorgensen, C. H., Villanen, J. T., Icheln, C. & Vainikainen, P., 2007, Patent No. US7274340 (Also published as: KR20080080409, WO2007074369, EP1969671, CN101336497)

Research output: Patent

Quad-band coupling element antenna structure,

Ozden, S., Nielsen, B. K., Jorgensen, C. H., Villanen, J., Icheln, C. & Vainikainen, P., 2007, Patent No. United States Patent, No. 7,274.340

Research output: Patent

Radiation characteristics of antenna structures in clamshell-type phones in wide frequency range

Villanen, J., Mikkola, M., Icheln, C. & Vainikainen, P., 2007, IEEE 65th Vehicular Technology Conference (VTC2007-spring), Dublin, Ireland, April 22-25, 2007. Dublin, Ireland, p. 382-386

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

2 Citations (Scopus)

User effect of antennas for handheld DVB terminal

Holopainen, J., Poutanen, J., Icheln, C. & Vainikainen, P., 2007, 2007 International Conference on Electromagnetics in advanced applications (ICEAA'07), Torino, Italy, September 17-21, 2007. Torino, Italy, p. paper:313.pdf.

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

9 Citations (Scopus)
2006

A new method for array pattern correction

Salonen, I., Icheln, C. & Vainikainen, P., 2006, XVI International Conference on Microwaves, Radar and Wireless Communications (MIKON-2006), Krakov, Poland, May 22-26, 2006. Krakov, Poland, p. 1083-1086

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

Antenna for handheld DVB terminal

Holopainen, J., Villanen, J., Kyrö, M., Icheln, C. & Vainikainen, P., 2006, iWAT 2006 Small Antennas and Novel Metamaterials, New York, USA, March 6-8, 2006. New York, USA: IEEE, p. Paper 077 (CD-ROM)

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

34 Citations (Scopus)

Beamforming with wide null sectors for realistic small arrays using directional weighting

Salonen, I., Icheln, C. & Vainikainen, P., 2006, In : Proceedings of the European Microwave Association. 2, 3

Research output: Contribution to journalArticleScientificpeer-review

Diversity antenna arrangements

Ollikainen, J., Icheln, C. & Vainikainen, P., 2006, Patent No. US7109923

Research output: Patent

Evaluation of diversity and MIMO performance of antennas from phaseless radiation pattern

Krogerus, J., Suvikunnas, P., Icheln, C. & Vainikainen, P., 2006, The 1st European Conference on Antennas and Propagation 2006 (EuCAP06), Nice, France, November 6-10, 2006. Nice, France: European Space Agency, p. Paper 363724jk.pdf (CD-ROM SP-626)

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

2 Citations (Scopus)

Evaluation of the performance of multi-antenna terminals using a new approach

Suvikunnas, P., Villanen, J., Sulonen, K., Icheln, C., Ollikainen, J. & Vainikainen, P., 2006, In : IEEE Transactions on Instrumentation and Measurement. 55, 5, p. 1804-1813

Research output: Contribution to journalArticleScientificpeer-review

32 Citations (Scopus)

Experimental investigation of antenna performance of GSM phones in body-worn and browsing use positions

Krogerus, J., Icheln, C. & Vainikainen, P., 2006, European Conference on Wireless Technology (ECWT06), Manchester, UK, September 10-15, 2006. Manchester, UK, p. 330-333

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

Integrated MIMO antenna with directional diversity in the 60 GHz band

Ranvier, S., Ferrero, F., Luxey, C., Staraj, R., Jacquemod, G., Icheln, C. & Vainikainen, P., 2006, Sophia Antipolis Microelectronics (SAME) 2006, Nice, France, October 4-5, 2006. Sophia-Antipolis, Nice, France

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

Integrated MM-wave MIMO antenna with directional diversity using MEMS technology

Ranvier, S., Ferrero, F., Luxey, C., Staraj, R., Jacquemod, G., Icheln, C. & Vainikainen, P., 2006, IEEE International Conference on Electronics, Circuits and Systems, Nice, France, December 10-13, 2006. Nice, France, p. 447-450

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

4 Citations (Scopus)

Mobile terminal antennas implemented by using direct coupling

Holopainen, J., Villanen, J., Icheln, C. & Vainikainen, P., 2006, The first European Conference on Antennas and Propagation 2006 (EuCAP06), Nice, France, November 6-10, 2006. Nice, France, p. Paper 349858jh.pdf (CD-ROM SP-626)

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

11 Citations (Scopus)

Mutual coupling reduction for patch antenna array

Ranvier, S., Luxey, C., Staraj, R., Vainikainen, P. & Icheln, C., 2006, Nice, France, p. Paper 350206, (European Conference on Antennas and Propagation 2006 (EuCAP06), Nice, France, November 6-10, 2006).

Research output: Working paperProfessional

5 Citations (Scopus)

Pattern correlation and mismatch in two-element antenna arrays

Salonen, I., Icheln, C. & Vainikainen, P., 2006, In : Microwave and Optical Technology Letters. 48, 1, p. 41-43

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Rapid small antenna measurements

Icheln, C., Toivanen, J., Krogerus, J., Laitinen, T. & Vainikainen, P., 2006, 16th International Conference on Microwaves, Radar, and Wireless Communications, MIKON 2006, Krakow, Poland, May 22-24, 2006. Krakow, Poland, p. 995-1002

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

User effect on total radiated power and 3-D radiation pattern of mobile handsets

Krogerus, J., Toivanen, J., Icheln, C. & Vainikainen, P., 2006, The 1st European Conference on Antennas and Propagation 2006 (EuCAP06), Nice, France, November 6-10, 2006. Nice, France: European Space Agency, p. Paper 363892jk.pdf (CD-ROM SP-626)

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

5 Citations (Scopus)
2005

Antenna array pattern correlation and input type

Salonen, I., Icheln, C. & Vainikainen, P., 2005, In : Electronics Letters. 41, 10, p. 575-577

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

A two-arch antenna measurement system

Laitinen, T., Toivanen, J. & Icheln, C., 2005, 27th Antenna Measurement Techniques Association 2005 AMTA'05, Newport, RI, USA, October 30-November 4, 2005. Newport, RI, USA, p. 459-464

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

Beamforming with wide null sectors for realistic arrays using directional weighting

Salonen, I., Icheln, C. & Vainikainen, P., 2005, Espoo, p. 24, (Teknillinen korkeakoulu, Radiolaboratorion julkaisuja - Report S; no. S 274).

Research output: Working paperProfessional

Correlation between total radiated power of GSM 900 mobile phone and total dissipated power in a phantom

Derat, B., Krogerus, J., Bolomey, J-C. & Icheln, C., 2005, EMC Europe Workshop 2005, Rome, Italy, September 19-21, 2005. Rome, Italy, p. 419-422

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

Dependence of mean effective gain of mobile terminal antennas on side of head

Krogerus, J., Icheln, C. & Vainikainen, P., 2005, European Conference on Wireless Technology (ECWT05), Paris, France, October 3-4, 2005. Paris, France, p. 467-470

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

6 Citations (Scopus)

Effect of human body on 3-D radiation pattern and efficiency of mobile handsets

Krogerus, J., Icheln, C. & Vainikainen, P., 2005, IEEE Instrumentation and Measurement Conference IMTC'05, Ottawa, Canada, May 16-19, 2005. Ottawa, Canada, p. 271-276

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

9 Citations (Scopus)

Microstrip antenna circuit model and linear pattern correction

Salonen, I., Icheln, C. & Vainikainen, P., 2005, 11th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM 2005), Saint-Malo, France, June 15-17, 2005. Saint-Malo, France, p. 182-183

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

Spherical wideband measurement system for mobile terminal antennas

Toivanen, J., Laitinen, T., Icheln, C. & Vainikainen, P., 2005, 2nd IASTED Conference on Antennas, Radar and Wave Propagation, Banff, Alberta, Canada, July 19-21, 2005. Hamza, M. H. (ed.). Banff, Alberta, Canada: International Association of Science and Technology for Development (IASTED), p. 360-365

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

5 Citations (Scopus)

The dependency of pattern correlation on mutual couling and losses in antenna arrays

Salonen, I., Icheln, C. & Vainikainen, P., 2005, In : Microwave and Optical Technology Letters. 47, 2, p. 145-147

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
2004

Advances in diversity performance analysis of mobile terminal antennas

Villanen, J., Suvikunnas, P., Icheln, C., Ollikainen, J. & Vainikainen, P., 2004, International Symposium on Antennas and Propagation (ISAP), Sendai, Japan, 17.-21.8.2004. Sendai, Japan: The Institute of Electronics, Information and Communication Engineering, p. paper 3A3_3.pdf

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

Development of a spherical measurement system for measuring complex radiation patterns of mobile terminals

Laitinen, T., Icheln, C. & Vainikainen, P., 2004, Barcelona, Spain, p. 4, (COST 284).

Research output: Working paperProfessional

Evaluation of performance of multi-antenna terminals using two approaches

Suvikunnas, P., Sulonen, K., Villanen, J., Icheln, C., Ollikainen, J. & Vainikainen, P., 2004, Instrumentation and Measurement Technology Conference, Como, Italy, May 18-19, 2004. p. 1091-1096

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

13 Citations (Scopus)

Spherical measurement system for determination of complex radition patterns of mobile terminals

Laitinen, T., toivanen, J., Icheln, C. & Vainikainen, P., 2004, In : Electronics Letters. 40, 22, p. 1392-1394

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Use of balun chokes in small-antenna radiation measurements

Icheln, C., Krogerus, J. & Vainikainen, P., 2004, In : IEEE Transactions on Instrumentation and Measurement. 53, 2, p. 498-506

Research output: Contribution to journalArticleScientificpeer-review

90 Citations (Scopus)
2003

Internal multiband handset antenna realized with an integrated matching circuit

Ollikainen, J., Kivekäs, O., Icheln, C. & Vainikainen, P., 2003, 12th International Conference on Antennas and Propagation ICAP 2003, Exeter, UK, March 31-April 3, 2003. Exeter, UK, p. 629-632

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

Rapid spherical 3-D field measurement system for mobile terminal antennas

Laitinen, T., Ollikainen, J., Icheln, C. & Vainikainen, P., 2003, Vail, CO, USA, p. 968-972, (IMTC-2003, IEEE Instrumentation and measurement technology conference, Vail, CO, USA, May 20-22, 2003).

Research output: Working paperProfessional

11 Citations (Scopus)

Rapid spherical 3-D measurement system for mobile terminal antennas

Laitinen, T., Ollikainen, J., Icheln, C. & Vainikainen, P., 2003, Pariisi, Ranska, p. 5, (COST 273 Temporary Documents; no. TD(03)134).

Research output: Working paperProfessional

2001

Effects of RF Absorbers on Measurements of Small Antennas in Small Anechoic Chambers

Icheln, C., Ollikainen, J. & Vainikainen, P., 2001, In : IEEE Aerospace and Electronic Systems Magazine. 16, 11, p. 17-20

Research output: Contribution to journalArticleScientificpeer-review

Experimental Determination of the Loss Mechanisms in a Mobile Handset Chassis

Icheln, C. & Vainikainen, P., 2001, IEEE Instrumentation and Measurement Technology Conference, Budapest, Hungary, May 21-23, 2001. Budapest, Hungary: IEEE, p. 1277-1280

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

2000

Designing a dual-frequency balun to eliminate the effect of RF feed cabels in measurements of small antennas

Icheln, C. & Vainikainen, P., 2000, Abstracts of the URSI/ XXV National Conference Radio Science, Helsinki, Finland, September 21-22, 2000. Helsinki, Finland, p. 94-95

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

Dual-frequency balun to decrease influence of RF feed cables in small-antenna measurements

Icheln, C. & Vainikainen, P., 2000, In : Electronics Letters. 36, 21, p. 1760-1761

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Optimal reduction of the influence of RF feed cables in small antenna measurements

Icheln, C., Popov, M. & Vainikainen, P., 2000, In : Microwave and Optical Technology Letters. 25, 3, p. 194-196

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)