Recently applications of UHF RFID systems are often requiring sensing and monitoring capabilities on the transponder side as well as long operating ranges (long range sensor tag). Such functionality results in a high energy consumption of the tag on the one hand but also requires an uninterrupted energy supply on the other hand. This is not achievable with reader-powered passive UHF RFID System...

Abstract—A compact dual-band CPW-fed triangle-shaped antenna is proposed for applications in 2.4/5 GHz WLAN and RFID. The designed antenna, including ground plane, is only 28mm in height and 26 mm in width. By introducing a Π-shaped slot and a T-shaped strip, the proposed antenna can generate two separate impedance bandwidths. Prototypes of the proposed antenna have been constructed and tested....

This novel architecture supports various future eEnabled airplane applications based on RFID technology. As RFID readers and wireless communication equipment is installed on-board of airplanes, it has to support a manifold of different wireless communication standards. The flexibility offered by Software Defined Radio (SDR) plays here an essential role. The security solution concept identifies ...

Among the various faults of power transformers, winding are particularly common. It is known that short-circuit parameters can reflect condition, so on-line identification great significance for monitoring transformer health. An instantaneous phasor extraction method based on Second-Order Generalised Integrator Frequency-Locked Loop introduced, and then an algorithm proposed. In this algorithm,...