133documents trouvés
Small size high isolation Wilkinson power splitter for 60GHz wireless sensor network applications
M.ERCOLI, D.DRAGOMIRESCU, R.PLANA
MINC
Manifestation avec acte : Topical Mzeeting on Silicon Monolithic Integrated Circuits in RF Systems (SIRF 2011), Phoenix (USA), 16-19 Janvier 2011, pp.85-88 , N° 11006
Lien : http://hal.archives-ouvertes.fr/hal-00591037/fr/
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Abstract
This paper shows a very compact Wilkinson power splitter for high integrated millimeter wave systems. The approach, to reduce the component's size, is based on the lumped component transformation for the lines. The simulation on the splitter structure shows a very wide band with 0.5 dB of maximum insertion loss and only 0.07 dB of maximum output amplitude imbalance. The input return loss is better than -21 dB within the whole band of interest (57 - 67 GHz) the output return loss is better than -21.5 dB for the same band. The isolation between the two outputs is betterthan -20 dB. The occupied area for the entire structure is around 0.0055mm2
A wideband single-balanced down-mixer for the 60GHz band in 65nm CMOS
M.KRAEMER, M.ERCOLI, D.DRAGOMIRESCU, R.PLANA
MINC
Manifestation avec acte : Asia Pacific Microwave Conference (APMC 2010), Yokohama (Japon), 7-10 Décembre 2010, pp.1849-1852 , N° 10528
Lien : http://hal.archives-ouvertes.fr/hal-00591007/fr/
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This paper presents a single-balanced direct down conversion mixer for the unlicensed 60 GHz band. It is based on a differential pair employing the current bleeding technique. An integrated 60 GHz wideband passive balun allows the use of a single ended local oscillator (LO). The circuit is fabricated using the 65nm bulk CMOS technology of ST Microelectronics. The mixer's baseband reaches from DC to 2 GHz. The measured radio frequency (RF) bandwidth exceeds 11 GHz, ranging from 54 GHz to at least 65 GHz. The measured RF, IF (intermediate frequency) and LO port return losses lie below -20 dB, -15 dB and -10 dB, respectively, within this entire band. A maximum conversion gain of 9.1 dB at 100MHz from the carrier is achieved, while typical values measured at 1 GHz IF lie around 6 dB throughout the entire band. The mixer delivers these optimum results for LO powers as low as -5 dBm. The output referred 1 dB compression point reaches -5dBm for -1dBm of LO power. The simulated single sideband (SSB) noise figure is of 9 dB. Including the differential IF buffer that can drive two singleended 50Ω loads, the circuit draws 16.8mA from a 1V supply. The pad-limited die size is only 0.52 x 0.49 mm2.
A high performance integrated balun for 60GHz application in 65nm CMOS technology
M.ERCOLI, M.KRAEMER, D.DRAGOMIRESCU, R.PLANA
MINC
Manifestation avec acte : Asia Pacific Microwave Conference (APMC 2010), Yokohama (Japon), 7-10 Décembre 2010, pp.1845-1848 , N° 10650
Lien : http://hal.archives-ouvertes.fr/hal-00591008/fr/
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This paper shows a new design approach that allows to integrate an efficient balun into mm-wave radio frequency integrated circuits (RFIC). The proposed device is an evolution of the simple transformer. Thanks to the modification on the device's shape, the performance increases considerably, maintaining limited dimensions. The proposed balun shows a very good power division with only 0.5 dB of maximum amplitude imbalance within the whole band of interest and less than 10°phase imbalance around 60 GHz. The measurement campaign confirms the accuracy of the electromagnetic simulations and the behaviour of the device. The balun is implemented in ST Microelectronic's 65nm bulk CMOS technology and is employed in a double balanced 60 GHz down-conversion mixer to provide the balanced the LO and RF signal.
Réseaux de capteurs sans fil pour la métrologie: mesures et test
F.PERGET, J.HENAUT, D.DRAGOMIRESCU
MINC
Rapport de Contrat : Projet SACER, Octobre 2010, 26p. , N° 10947
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125298Conception de deux déphaseurs à base de MEMS RF et de transistors CMOS 65nm en bande V
S.COPPOLA, D.DRAGOMIRESCU, V.PUYAL, R.PLANA
MINC
Rapport LAAS N°10572, Octobre 2010, 74p.
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122655A dual-gate 60GHz direct up-conversion mixer with active IF balun in 65nm CMOS
M.KRAEMER, D.DRAGOMIRESCU, R.PLANA
MINC
Manifestation avec acte : International Conference on Wireless Information Technology and Systems (ICWITS 2010), Hawaii (USA), 28 Août - 3 Septembre 2010, 4p. , N° 10343
Lien : http://hal.archives-ouvertes.fr/hal-00591006/fr/
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This paper presents a low-power balanced dual-gate direct up-converter for the unlicensed 60 GHz band. To the author's knowledge, the proposed architecture has never been used for a CMOS up-converter working in this band before. The maximum conversion gain achieved by the fabricated test circuit for PLO = 6dBm, fLO = 62GHz and fIF = 1GHz is -2.4 dB. Furthermore, a novel IF buffer topology with integrated broadband active balun has been proposed. It allows to test the mixer circuit using either a single-ended or differential IF signal. Future work will include the redesign of the RF buffer's matching networks as well as the direct connection of an on-chip differential VCO. These measures are expected to improve conversion gain and LO-to-IF isolation and lead to a better symmetry between upper and lower sidebands.
Simulation platform for ultra high data rate wireless networks with quality of service
F.PERGET, D.DRAGOMIRESCU, C.VAUCHER
MINC, NXP, Eindhoven
Rapport LAAS N°10830, Septembre 2010, 38p.
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1236653D heterogeneous integration of wireless communicating nano-sensors on flexible substrate
M. M.JATLAOUI, D.DRAGOMIRESCU, S.CHARLOT, P.PONS, H.AUBERT, R.PLANA
MINC, TEAM
Revue Scientifique : Proceedings of SPIE. Advanced Topics in Optoelectronics Microelectronics and Nanotechnologies IV , Vol.7821, 78211Ep., Septembre 2010 , N° 10826
Lien : http://hal.archives-ouvertes.fr/hal-00591024/fr/
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In this communication, the 3D heterogeneous integration of miniaturized communicating modules used for wireless network application is described. These communicating objects present the particularity of being in Nano-scale range. In fact, each object is composed of Nano-sensors, transceivers and E/R antenna. Such investigated ways of Nano-system integration will allow the development of sensor communicating modules which can be inserted and located in areas with access difficulty (in particular in non planar area) or even in inaccessible places. This attractive integration concept is discussed and illustrated here.
60GHz wireless nano-sensors network for structure health monitoring as enabler for safer, greener aircrafts
D.DRAGOMIRESCU, M.KRAEMER, M. M.JATLAOUI, P.PONS, H.AUBERT, A.THAIN, R.PLANA
MINC, EADS Innovation Work
Revue Scientifique : Proceedings of SPIE. Advanced Topics in Optoelectronics Microelectronics and Nanotechnologies IV , Vol.7821, 78215p., Septembre 2010 , N° 10827
Lien : http://hal.archives-ouvertes.fr/hal-00591028/fr/
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The deployment of Wireless Sensors Network for Structure Health Monitoring will allow better maintenance of the aircraft and predictive diagnosis of the aircrafts in a long term approach. This paper presents our research on the design of wireless communicating nano-objects for Structure Health Monitoring in the aircrafts and the improvements bring by the nanotechnologies. The main challenges we address here are the design of ultra low power communicating circuits to enable high lifetime for the communicating nodes and their integration on flexible substrate to allow their deployment in difficult accessible places on the aircraft using conventional technologies. Other main issues are the choice of the communicating frequency which will allow a high number of communicating nodes in such a small area like the cabin of an aircraft and the choice of the network architecture.
Heterogeneous integration of communicating nano-objects on flexible substrate
M. M.JATLAOUI, S.CHARLOT, D.DRAGOMIRESCU, P.PONS, H.AUBERT
TEAM, MINC
Manifestation avec acte : International Conference Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies (ATOM-N 2010), Constanta (Roumanie), 26-29 Août 2010, 4p. , N° 10494
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