Space Relays Failures Occurring & Lessons Learnt at ESA

Space Relays Failures Occurring & Lessons Learnt at ESA

source: ESA ESTEC; ESA SPCD 2018 Symposium EPCI e-symposium library article ESA component engineers Dr.Denis Lacombe and Dr.Léo Farhat are introducing their presentation on space relays failures and lessons learnt. published by EPCI under approval of ESA SPCD 2018 organizing committee. Title: Relays Failures Occurring & Lessons Learnt Author(s): Dr.Denis Lacombe and Dr.Léo Farhat Organisation(s): ESA ESTEC, The Netherlands Symposium: ESA SPCD 2018 Reference:...

Pushing Tantalum capacitors to the limit: view to 300 V anodisations and beyond

Pushing Tantalum capacitors to the limit: view to 300 V anodisations and beyond

source: H.C. Starck Tantalum and Niobium GmbH; ESA SPCD 2018 Symposium EPCI e-symposium library article Ta capacitors are the best choice when applications require highest capacitance (energy density) on miniature scale combined with high reliability, low ESR, and excellent stability over wide ranges of time and application temperature. Recently, the demand of high reliability capacitors withstanding harsher conditions especially with respect to higher application...

EDLC Durable Electrodes and Capacitor for High Frequency Applications

EDLC Durable Electrodes and Capacitor for High Frequency Applications

source: Department of Materials and Environmental Technology, Tallinn University of Technology, Tallinn, Estonia; ESA SPCD 2018 Symposium EPCI e-symposium library article Present work focuses on developing the method of producing carbon rich nanofibrous electrodes by electrospinning for supercapacitor electrodes. The influence of different polymer/carbon ratio to solution viscosity and conductivity were observed. Electrochemical behavior of produced electrodes was evaluated in triethylmethylammonium tetrafluoroborate (TEMABF4) in...

Recent developments in microwave filters based on GaN/Si SAW resonators, at frequencies above 5 GHz

Recent developments in microwave filters based on GaN/Si SAW resonators, at frequencies above 5 GHz

source: National Institute of R&D in Microelectronics (IRM) Bucharest Romania , ESA SPCD 2018 Symposium EPCI e-symposium library article This paper presents the progress in the development of monolithic integrated band pass filters, achieved in the frame of the ESA project No. 40000115202/15/NL/CBi (“Microwave filters based on GaN/Si SAW resonators, operating at frequencies above 5 GHz”). The main objective focused on the design, fabrication...

Laser Machining of Multicapacitance filtering MLCC’s

Laser Machining of Multicapacitance filtering MLCC’s

source: Exxelia SAS, ESA SPCD 2018 Symposium EPCI e-symposium library article The aim of this work is the development of miniaturized filtering multilayers ceramic capacitors, single or multi capacitance, from various designs, circular miniaturizes shapes, or custom-design shapes. These special designs, for the most reduced dimensions, are only accessible by green machining of the MLCC’s. This step is one of the most critical in...

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