We present a new vision for smart objects and the Internet of Things wherein mobile robots interact with wirelessly-powered, long-range, ultra-high frequency radio frequency identification (UHF RFID) tags outfitted with sensing capabilities. We explore the technology innovations driving this vision by examining recently-commercialized sensor tags that could be affixed-to or embedded-in objects ...

This paper reports an area-efficient LNA design using an active inductor which can be realised in various UHF band receivers. The overall low noise performance of LNA is achieved by cancelling the inductor noise through additional feed forward path. This circuit is implemented using 0.18μm CMOS technology with cadence environment and its operating range is 0.4 to 1GHz. Design is simulated in vi...

White Spaces in the UHF bands are very interesting because of their potential use in rural communications, but their feasibility needs to be proven. This paper analyses the TV spectrum occupation in the region of Catalonia, Spain, because it will be one of the first EU regions where changes in the UHF band are going to be implemented. Those changes are derived from the implementation of the Dig...

Our previously developed constrained-pairing mean-field theory (CPMFT) is shown to map onto an unrestricted Hartree-Fock (UHF) type method if one imposes a corresponding pair constraint to the correlation problem that forces occupation numbers to occur in pairs adding to one. In this new version, CPMFT has all the advantages of standard independent particle models (orbitals and orbital energies...

A segmented loop antenna is presented for ultra-high frequency (UHF) near-field radio frequency identification (RFID) applications. The proposed segmented configuration makes the current along the loop remain in-phase even though the perimeter of the loop is comparable to the operating wavelength, so that a strong and uniform magnetic field is generated in the region surrounding the antenna. Th...

Msller-Plesset perturbation calculations (MPn) up to fiftieth order, within both the restricted (RHF) and unrestricted Hartree-Fock (UHF) frameworks, have been used to examine the He:+ ground-state potential curve. The bond lengths of the equilibrium and transition structures have been optimized at all orders of perturbation theory. It is found that RMPn describes the homolytic dissociation bet...

This paper describes the early weeks of a live pilot of item-level RFID by METRO Group's German department store, Kaufhof. The RFID-Enabled Sales Floor utilizes UHF Gen2 RFID tags on fashion items, combined with RFIDenabled dressing rooms, intelligent displays, and smart mirrors. The pilot represents a pioneering attempt to conduct end-to-end UHF item-level tracking of items through the point-o...

Wireless communication is becoming more and more popular. In this paper, a maximally flat low-pass filter and a equal-ripple low-pass filter have been designed for Ultra High Frequency (UHF) band ie I.T.U. band 9 (Frequency 300Mhz – 3000Mhz; Wavelength 1m – 100mm).Application of UHF band includes television, microwave ovens, mobile phones, wireless LAN, Bluetooth, etc. The filters are designed ...

Currently RFID (radio frequency identification) technology is pushing to the market mainly forced by industry. Passive tags in the UHF (ultra high frequency) region are of particular interest e.g. for supply chains, showing a tendency to become state of the art. Passive tags obtain their energy from the readers during communication. The reader has to power the tag by radiating energy at the sam...

Wrong medication is an important problem of the citizens of many countries. Using contemporary technologies like UHF Gen-2 RFID tags helps decreasing the medication errors, experienced by many. As UHF Gen-2 tags have limited capacity, cryptographic algorithms cannot be accommodated. The only available functions PRNG and CRC cannot be used instead of cryptographic algorithms. To overcome the kno...