Výsledky vyhledávání - "Markus Wobak"

Physical limits of batteryless HF RFID transponders defined by system properties

Autor: Ulrich Muehlmann, Markus Wobak, Michael Gebhart

Publikováno v: RFID-TA

This paper motivates the usage of RF system properties of an ISO/IEC 14443 HF RFID communication link to describe defined properties at the air interface. An analytic derivation of the transponder loading effect and an empirical equation to estimate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46ed012c46f32c7c7e9de31928c43033
https://doi.org/10.1109/rfid-ta.2012.6404500

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Active load modulation for contactless near-field communication

Autor: Christoph Chlestil, Markus Wobak, Michael Gebhart, Erich Merlin

Publikováno v: RFID-TA

To integrate NFC functionality in Smartphones and mobile, personal devices requires small loop antennas and specific constructions. For card mode operation there is a physical limit for the minimum antenna size to achieve standard conformance with co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89573af5be286aa56c111a54d3e44084
https://doi.org/10.1109/rfid-ta.2012.6404518

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Mutual coupling modeling of NFC antennas by using open-source CAD/FEM tools

Autor: Michael Gebhart, Markus Wobak, Ulrich Muehlmann

Publikováno v: RFID-TA

Near Field Communication (NFC) antennas are not comparable to standard communication antennas used for traditional transmission services. The geometries are complex, narrow conductor cross-sections and long loops located close to materials sensitive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::642cc99e5600f5a8945fa995fe25020e
https://doi.org/10.1109/rfid-ta.2012.6404553

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