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Comparative Study of the Accuracy of Analytical Inductance Formulae for Square Planar Spiral Inductors
In the design of radio frequency (RF) microelectronic integrated circuits (IC’s) and of antennas for short-wave radio frequency identification (RFID) and telemetry systems, planar spiral coils are important components.
Analytical Approximation for the Inductance of Circularly Cylindrical Two-Wire Transmission Lines with Proximity Effect
The paper describes a simple analytical approximation for the inductance of two-wire transmission lines of circularly cylindrical wires with proximity effect.
Zöetry Paraiso de la Bonita Riviera Maya installs mobile access
AMResorts AAA five-diamond property in Mexico, Zöetry Paraiso de la Bonita Riviera Maya, has installed the mobile access solution from dormakaba and OpenKey.
The GMD Method for Inductance Calculation Applied to Conductors with Skin Effect
The GMD method (geometric mean distance) to calculate inductance offers undoubted advantages over other methods. But so far it seemed to be limited to the case where the current is uniformly distributed over the cross section of the conductor, i.e. to DC (direct current).
Las Vegas hotel chooses LEGIC Connect for room keys
Opening hotel rooms with smartphones became reality in Las Vegas. The Cromwell Las Vegas decided to use the combination of the LEGIC Connect trusted service, Kaba Mobile Access Solutions and Bluetooth Low Energy, allowing the hotel to send keys onto smartphones with the touch of a button.
Improved Formulae for the Inductance of Straight Wires
The best analytical formulae for the self-inductance of rectangular coils of circular cross section available in the literature were derived from formulae for the partial inductance of straight wires, which, in turn, are based on the well-known formula for the mutual inductance of parallel current...
Free University of Bozen banks on one single card
Multi-functional contactless campus card with LEGIC technology
The key to the city
The City Card Augsburg is a showcase of the possibilities of the LEGIC technology platform. With the swa KAROCARD Stadtwerke Augsburg (swa; energy, water and public transport supplier) put in place an innovative project which enables various partners to work together on one card. Today, citizens of...
Security in the world of hotel mobile ID and IoT solutions
We live in times where nothing seems to be safe. Every day, we read about tech hacks, industrial espionage, data thefts and much more in the business world. The well-known statement that there is no absolute security applies to any technology used for security purposes. However, the risk of a...