Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Timo Rahkonen"'
Autor:
Sergey Vainshtein, Guoyong Duan, Timo Rahkonen, Zachary Taylor, Valery Zemlyakov, Vladimir Egorkin, Olga Smolyanskaya, Thomas Skotnicki, Wojciech Knap
Publikováno v:
Results in Physics, Vol 19, Iss , Pp 103509- (2020)
Peak power is a critical factor for sub-nanosecond-pulsed transmitters utilizing laser diodes (LD) and applied to long distance LIDARs (light detection and ranging) for drones and automotive applications. Receiver speed is not anymore a limiting fact
Externí odkaz:
https://doaj.org/article/73a2a3780b3a4e32a7c2a47b1386118e
Autor:
Olli Kursu, Marko E. Leinonen, Giuseppe Destino, Nuutti Tervo, Marko Sonkki, Timo Rahkonen, Aarno Pärssinen, Saila Tammelin, Marko Pettissalo, Aki Korvala
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2018, Iss 1, Pp 1-11 (2018)
Abstract High throughput and ultra low latency are the main requirements for fifth generation (5G) mobile broadband communications. Densely populated urban environments require utilization of previously underutilized millimeter wave frequency spectru
Externí odkaz:
https://doaj.org/article/4ce05c8fba9d40fc8ef9966eafae50ff
Publikováno v:
Applied Sciences, Vol 11, Iss 15, p 6708 (2021)
This paper presents a fully integrated, four-stack, single-ended, single stage power amplifier (PA) for millimeter-wave (mmWave) wireless applications that was fabricated and designed using 45 nm complementary metal oxide semiconductor silicon on ins
Externí odkaz:
https://doaj.org/article/72efbdfefd534761a19629b0e9158acc
Publikováno v:
Proceedings of the XXth Conference of Open Innovations Association FRUCT, Vol 162, Iss 16, Pp 79-85 (2014)
This paper discusses the possibilities to measure the amount of light with the help of portable devices such as mobile phones and tablets. Focus is directed to the accuracy of the ambient light sensor on smartphones in order to obtain the illuminance
Externí odkaz:
https://doaj.org/article/ef7b62ee17544fdea94a7e3688b4cce3
Autor:
Christian Schuss, Timo Rahkonen
Publikováno v:
Proceedings of the XXth Conference of Open Innovations Association FRUCT, Vol 232, Iss 14, Pp 132-139 (2013)
In this paper we present strategies to harvest solar energy for mobile phones. Thereby, we discuss system structures, in which mobile phones act as either active or passive devices depending on an available communication between smartphones and their
Externí odkaz:
https://doaj.org/article/81d0418624784f95b65d83a1f73c3dde
Autor:
Christian Schuss, Timo Rahkonen
Publikováno v:
Proceedings of the XXth Conference of Open Innovations Association FRUCT, Vol 325, Iss 12, Pp 120-128 (2012)
This paper presents opportunities to recharge portable devices, in particular mobile phones, with photovoltaic (PV) energy. Conventional available PV chargers suffer from the disadvantage of long charging times, which are unacceptable for the users o
Externí odkaz:
https://doaj.org/article/015b7ae7b6eb4e91b7921718e87aa6ff
Publikováno v:
PLoS ONE, Vol 7, Iss 8, p e42733 (2012)
Stable positioning between a measurement probe and its target from sub- to few micrometer scales has become a prerequisite in precision metrology and in cellular level measurements from biological tissues. Here we present a 3D stabilization system ba
Externí odkaz:
https://doaj.org/article/a16f704d902f47ec987f006a5d46b1cb
Publikováno v:
IEEE Journal of Solid-State Circuits. :1-11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d03b45bbf443d912a5c5fe08e8c60429
https://doi.org/10.1109/jssc.2023.3264475
https://doi.org/10.1109/jssc.2023.3264475
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 69:3540-3553
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::659840bd74d314ec03c84d9f46cf9849
https://doi.org/10.1109/tcsi.2022.3185301
https://doi.org/10.1109/tcsi.2022.3185301
