Critical technologies towards 5G:Research Results Report

Autor: Anttonen, Antti, Apilo, Olli, Aurinsalo, Jouko, Boumard, Sandrine, Chen, Xianfu, Chen, Tao, Dufva, Tommi, Evesti, Antti, Hekkala, Atso, Hiivala, Mikko, Horsmanheimo, Seppo, Höyhtyä, Marko, Järvensivu, Pertti, Kim, Haesik, Kotelba, Adrian, Maskey, Niwas, Matinmikko, Marja, Mustonen, Miia, Mämmelä, Aarne, Mämmelä, Olli, Ojanperä, Tiia, Paaso, Henna, Palola, Marko, Pinola, Jarno, Piri, Esa, Rautio, Teemu, Ruponen, Sami, Sten, Johan, Suomalainen, Jani, Tuomimäki, Lotta, Vehkaperä, Janne

Publikováno v: Lasanen, M (ed.), Anttonen, A, Apilo, O, Aurinsalo, J, Boumard, S, Chen, X, Chen, T, Dufva, T, Evesti, A, Hekkala, A, Hiivala, M, Horsmanheimo, S, Höyhtyä, M, Järvensivu, P, Kim, H, Kotelba, A, Maskey, N, Matinmikko, M, Mustonen, M, Mämmelä, A, Mämmelä, O, Ojanperä, T, Paaso, H, Palola, M, Pinola, J, Piri, E, Rautio, T, Ruponen, S, Sten, J, Suomalainen, J, Tuomimäki, L & Vehkaperä, J 2015, Critical technologies towards 5G : Research Results Report . VTT Technical Research Centre of Finland . < https://publications.vtt.fi/julkaisut/muut/2015/Critical_technologies_towards_5G.pdf >

Research and development of the fifth generation (5G) mobile networks has started strongly and European Commission sees that "5G will be the very backbone of the new digital economy." This report presents many example research results obtained in VTT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=355e65625b88::de20c23f3d21909ab9cdd5fffe9387f0
https://cris.vtt.fi/en/publications/c6ad1c12-216c-480d-9e98-f6615a7f8309

Generic circuit model for multilayer spiral inductors and transformers

Autor: Dufva, Tommi, Volotinen, Juha, Sten, Johan

Publikováno v: Dufva, T, Volotinen, J & Sten, J 2004, Generic circuit model for multilayer spiral inductors and transformers . in URSI/IEEE XXIX Convention on Radio Science . VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 235, pp. 65-68, URSI/IEEE XXIX Convention on Radio Science, Espoo, Finland, 1/11/04 . < http://www.vtt.fi/inf/pdf/symposiums/2004/S235.pdf >

The paper reports the theoretical development of a new generic circuit model for multilayer spiral inductors and transformers and its implementation into the APLAC circuit simulator. Also, a numerical example is presented in order to prove the accura

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=355e65625b88::a2666bdedda0116240128dc6fd42e91d
https://cris.vtt.fi/en/publications/af274cbf-107a-47a4-8a67-9435d4b231d3

Estimates for the partial capasitance of a printed circuit board via

Autor: Sten, Johan C.-E., Dufva, Tommi

Publikováno v: Sten, J C-E & Dufva, T 1999, ' Estimates for the partial capasitance of a printed circuit board via ', Microwave and Optical Technology Letters, vol. 20, no. 3, pp. 160-163 . https://doi.org/10.1002/(SICI)1098-2760(19990205)20:3<160::AID-MOP3>3.0.CO;2-E

A printed circuit board via is analyzed as a collection of sections bounded by grounded planes. A semianalytical expression for the capacitance of such a section is deduced and numerically adapted to solutions obtained with the finite‐element metho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=355e65625b88::e63779392c146b431bf1f372c60e11c0
https://cris.vtt.fi/en/publications/f4f3cb5d-fd00-4dcb-93e8-d071d744e3c1

Broadband MLFMA With Plane Wave Expansions and Optimal Memory Demand.

Autor: Dufva, Tommi¹ tommi.dufva@vtt.fi, Sarvas, Jukka² jukka.sarvas@tkk.fi

Publikováno v: IEEE Transactions on Antennas & Propagation. Mar2009, Vol. 57 Issue 3, p742-753. 12p. 5 Diagrams, 5 Charts, 1 Graph.