150documents trouvés
Caractérisation micro-onde de la résine épaisse SU8 utilisée dans un procédé "above-ic"
A.GHANNAM, C.VIALLON, D.BOURRIER, T.PARRA
MOST, TEAM
Manifestation avec acte : Journées de Charactérisation Microondes et Matériaux (JCMM 2010), Brest (France), 31 Mars - 2 Avril 2010, 4p. , N° 10781
Diffusable
123347Conception d'un dispositif d'évaluation des paramètres hyperfréquence d'une couche diélectrique de nanoparticules en FeCo
D.SERON, A.GHANNAM, L.OURAK, C.VIALLON, T.PARRA
MOST, OLC
Rapport LAAS N°08889, Février 2010
Diffusable
120378Dielectric microwave characterization of the SU-8 thick resin used in an above IC process
A.GHANNAM, C.VIALLON, D.BOURRIER, T.PARRA
MOST, TEAM
Manifestation avec acte : 39th European Microwave Conference : European Microwave week 2009 (EuMA: EuMC), Rome (Italie), 28 Septembre-2 octoibre 2009, pp.1041-1044 , N° 09397
Diffusable
119094A double balanced resistive down-conversion mixer integrated in BiCMOS SiGe technology for 79 GHz automotive radar
M.MENEGHIN, C.VIALLON, T.PARRA
MOST
Manifestation avec acte : NEWCAS - TAISA'09, Toulouse (France), 28 Juin - 1 juillet 2009, 6p. , N° 09311
Diffusable
117890Mélangeur résistif intégré en technologie BiCMOS SiGe pour des applications de radar automobile embarqué à 79 GHz
M.MENEGHIN, C.VIALLON, E.TOURNIER, T.PARRA
MOST
Manifestation avec acte : 16èmes Journées Nationales Microondes (JNM 2009), Grenoble (France), 27-29 Mai 2009, 6p. , N° 09306
Diffusable
117880A 5.4 mW/0.07mm2 2.4 GHz front-end receiver in 90nm CMOS for IEEE 802.15.4 WPAN standard
M.CAMUS, B.BUTAYE, L.GARCIA, B.PELLAT, M.SIE, T.PARRA
ST Microelectronics, MOST
Revue Scientifique : IEEE Journal of Solid-State Circuits, Vol.43, N°6, pp.1372-1383, Juin 2008 , N° 07728
Diffusable
Plus d'informations
Abstract
An integrated 2.4 GHz CMOS receiver front-end according to the IEEE 802.15.4 standard is presented in this paper. It integrates the overall RF part, from the balun up to the first stage of the channel filter, as well as the cells for the LO signal conditioning. The proposed architecture is based on a 6 MHz low-IF topology, which uses an inductorless LNA and a new clocking scheme for driving a passive mixer. When integrated in a 90 nm CMOS technology, the receiver front-end exhibits an area of only 0.07 mm2, or 0.23 mm2 when including an input integrated balun. The overall chip consumes 4 mA from a single 1.35 V supply voltage and it achieves a 35 dB conversion gain from input power in dBm to output voltage in dBvpk, a 7.5 dB NF value, -10 dBm of IIP3 and more than 32 dB of image rejection.
Mots-Clés / Keywords
IEEE 802.15.4; Low-IF receiver; Low noise amplifier (LNA); Passive mixer; Switched mixer; WLAN coexistence; Channel filter; Automatic gain control (AGC);
A protection circuit for HBT RF power amplifier under load mismatch conditions
W.KAROUI, T.PARRA
FREESCALE, MOST
Manifestation avec acte : Joint IEEE-NEWCAS and TAISA Conference, Montréal (Canada), 22-25 Juin 2008, 4p. , N° 08054
Diffusable
Plus d'informations
Abstract
This paper proposes a circuit solution for monolithic HBT RF Power Amplifier protection against failures that occur when a PA under extreme power conditions is exposed to output impedance mismatches. Both high voltage operation and high dissipated power conditions are addressed by respectively integrating a parallel base resistor and a simple current sensor associated to a feedback on biasing circuit. Experiments confirm the effectiveness of the protection which is indexed on the bias level and acts for all output loads up to VSWR of 10:1, whereas output power and power efficiency on a 50 Ohms load are not affected.
Mots-Clés / Keywords
RF power amplifier; HBT; Breakdown voltage; Current limiter; Load mismatch; Protection circuit; Monolithic;
A 5.4mW/0.07mm² 2.4GHz Front-end Receiver in 90nm CMOS for IEEE 802.15.4 WPAN
M.CAMUS, B.BUTAYE, L.GARCIA, M.SIE, B.PELLAT, T.PARRA
ST Microelectronics, MOST
Manifestation avec acte : IEEE International Solid-State Circuits Conference (ISSCC 2008), San Francisco (USA), 3-7 Février 2008, 3p. , N° 08853
Diffusable
118115A CMOS Low Loss / High linearity passive mixer for 2.45GHz low power applications
M.CAMUS, B.BUTAYE, T.PARRA
ST Microelectronics, MOST
Rapport LAAS N°07730, Décembre 2007, 3p.
Diffusable
Plus d'informations
Mots-Clés / Keywords
Low-IF receiver; Low noise amplifier (LNA); Local oscillator (LO); Passive mixer; Switched mixer;
A novel linearizer for RF power amplifier
W.KAROUI, T.PARRA, P.SAVARY, R.JAOUI
FREESCALE, MOST
Rapport LAAS N°07735, Décembre 2007, 17p.
Non diffusable
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