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BIODYNAMICS
Biodynamics manufactures bioimpedance (BIA) analyzers to assess body composition. Our products are used and preferred by thousands of medical and health-care professionals around the world.
Biodyncorp.com ~
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TSC Electronics, Ltd.
TSC Electronics, Lt. Your one stop source
for custom and standard passive components, Inductors, Chokes, Coils, Ferrite
Beads. Inductors, Chokes, Coils, Ferrite Beads, Chip Impeders, Power Chokes,
Filter Coils, Line Filters, Common Mode Chokes, Bead Coils, Balum Coils,
Trigger Coils, Flat Coils, Hash Chokes, Power Line Chokes, Central
Technologies, Coilcraft, Dale Electronics, Delevan, American Precision
Industries, Fair-Rite Products, Gowanda, Jeffers, J.W. Miller, Nytron, Pulse,
Taiyo Yuden, TDK, TOKO, Vanguard Electronics, NIC Components, Valor
Electronics, KOA Speer Electronics, Cadell-Burns, ACT, #L, Panasonic,
Nytronics, Murata Electronics North America, Coiltronics, Bock, Renco
Electronics, Siemens Components, Stetco, Sumida Electric, Tokin America,
Toltec Industries, Torotel Products, Wilco, Lennox-Fuegle
International inductor,magnetic,torrid,variable,balun choke,potcore,molded
inductor,air coil,transformer,wide band choke, A/D converter, AM/FM radio,
I/O boards,impedance,amplifier,oscillator,circuit,board,computer,switch,
ransmitter,power inductor,beads,through-hole,chip beads,solder dip,electrical
loads,conductor
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GVR Trade SA
GVR Trade SA works in the area of Surface Acoustic Wave (SAW) and Bulk Acoustic Wave (BAW) devices concentrating especially on the design of SAW RF filters. Our customers particularly appreciate the excellent parameters techniques of our designs and the rapidity as well as the very competitive prices of our services. Main activities Design of SAW devices (filters, resonators, sensors, SAW tags, etc.) Manufacturing of SAW devices (in collaboration with CC Tech Plus) Research projects in SAW/BAW and related areas Patenting of new design ideas Consultation, lecturing, and training on SAW physics and devices Software development for research applications and for design of devices Visitors on this site: GVR Trade SA belongs to Dr Victor Plessky and specializes in consultation and design activities in the SAW area. It is located in Bevaix, Switzerland. Publications We have a strong theoretical background based on many years of experience in SAW research. See the list of our selected publications and two of our best-known papers: Slow acoustic surface waves in solids A two-parameter coupling-of-modes model for shear horizontal type SAW propagation in periodic gratings (Plessky equation)Acoustic loss mechanisms in leaky SAW resonators on lithium tantalate (Outstanding paper award, IEEE UFFC, 2001) Patents Our research activity has resulted in many inventions and a few of them have been patented. See patents co-authored by Victor Plessky. Collaboration We work in close collaboration with young researchers and PhD students of the Materials Physics Laboratory headed by Prof. M. Salomaa at the Helsinki University of Technology in Finland. We also collaborate with scientists and software engineers in the former USSR and world-wide. Our collaboration network allows us to organize manufacturing of our products within minimal delays. Victor Plessky was born in 1952 in Kostukovka, Belorussia. He got his PhD degree at the Moscow Physical-Technical Institute in 1978, a DrSci (Tech) degree at the Institute of Radio Engineering and Electronics in Moscow in 1987, and a Full Professor degree from the Russian Government in 1995. He has worked as a researcher in several SAW companies, such as Micronas, Thales Microsonics, and SAWCOM. He has also worked as a visiting scientist at the Technical University of Vienna, Austria, and at ETH, Zürich, Switzerland. He frequents the Helsinki University of Technology (HUT), Finland, as a visiting professor. Since 2003, he has been the owner and director of GVR Trade SA in Bevaix, Switzerland. In his spare time, he enjoys growing tomatoes and raspberries in Bevaix, Switzerland. Sanna Härmä was born in 1977 in Kotka, Finland. She got her Master of Science degree at HUT in 2001, majoring in materials physics. She carried out her Masters Thesis work at Thales Microsonics in Sophia-Antipolis, France, where she continued as a SAW filter designer after her graduation. Later, she has acquired the status of a pedagogically qualified teacher and taught physics and mathematics on high school level in Finland. Currently, she works in the Materials Physics Laboratory at HUT and at GVR Trade, preparing her Doctoral Thesis on the design of SAW filters and tags. Her other interests include sports and the preparation of a university degree in French philology. She currently lives in Espoo, Finland. Johanna Meltaus was born in 1976 in Espoo, Finland. She got her Master of Science degree at HUT in 2000, majoring in materials physics, and in 2001 she received the Masters Thesis Award of the Finnish Associate of Graduate Engineers. In 2002, she got the Licentiate of Technology degree. She is currently working in the Materials Physics Laboratory at HUT, preparing her Doctoral Thesis on the design of coupled SAW filters. Her other interests include taekwondo, horseback riding, and reading. She currently lives in Espoo, Finland. Our philosophy the best-in-the-world technical level of designs minimal cost of product development and competitive prices for clientsNotre philosophie un niveau technique excellent de nos designsle coût minimisé de la production et les prix attrayants pour nos clients Vahvuutemme tuotteiden erinomainen tekninen tasoerittäin kilpailukykyiset hinnat The performance curves presented in the .pdf files below are measured curves if not mentioned otherwise. 434 MHz Filter 455 MHz Filter 465 MHz Filter 868 MHz_3.8x3.8 Filter 881 MHz Filter - high rejection, balun 881 MHz Filter - extremely low loss, balun 942 MHz Filter - high rejection, balun 942 MHz Filter - extremely low loss, balun 1575 MHz Filter - simulated response 1842 MHz Filter 1960 MHz Filter - low loss 1960 MHz Filter - extremely low loss, balun 2450 MHz Filter 2800 MHz Filter 5250 MHz Filter Please contact us if you need a more detailed specification. Evaluation of your specification within 5 working days (free of charge)Design of most SAW filter types within 4 weeks (mask data included) SAW design/analysis software for sale 2-D FEM/BEM software - a powerful tool for analysis of SAW devices Unique leaky longitudinal (LL) wave devices for 3 - 5 GHz frequency range Patents in SAW area for licensing and for sale Free download A SAW program illustrating Rayleigh waves (thanks to Juha Vartiainen, HUT) - Enjoy observing the real structure of SAW in an isotropic material! Bevaix office, Switzerland Neuchâtel office, Switzerland Tel./Fax 0041 32 846 3039 Tel. 0041 32 710 1351 Fax 0041 32 710 1352victor.plessky@bluewin.ch vplessky-gvr@bluewin.ch
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http://mei4pcbs.com
MEI (Marcel Electronics International) has the technology and expertise to support your most demanding multilayer printed circuit board designs. From 42 layer printed circuit boards with silver epoxy vias to 32 layer printed circuit boards with blind vias on advanced dielectric laminate, MEI can produce multilayers in time critical lead times starting at 24 hours. Capabilities include; Valor Genesis front end engineering, laser micro via, via in via, via in pad, controlled impedance, immersion silver, high aspect ratio multilayers, silver conductive epoxy, Getek, Rogers, Nelco, Buried Capacitance, electroless nickel
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