Download Ultra-Wideband Radio Frequency Identification Systems by Faranak Nekoogar PDF

By Faranak Nekoogar

Ultra-Wideband Radio Frequency id structures describes the necessities of radio frequency id structures in addition to their objective markets. The authors supply a research of commercially on hand RFID platforms and characterizes their functionality by way of learn diversity and reliability within the presence of conductive and dielectric fabrics.

The services and barriers of a few advertisement RFID platforms are said through entire discussions of the benefits and demanding situations of utilizing ultra-wideband expertise for tag/reader communications. The publication offers functional facets of UWB RFID approach equivalent to: pulse iteration, distant powering, tag and reader antenna layout, in addition to precise purposes of UWB RFIDs in an easy and easy-to-understand language.

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Tracking attacks can help the hacker to locate and replace the tag for malicious activities or monitor the movement of assets and people for criminal reasons. This would be a serious concern in scenarios such as tagging of military assets that can be located and detected by adversaries. Denial of Service (Jamming or Blocking) Once the RFID transmission signal is detected, hackers can use interferers at the same operational frequency to jam the original signals and hinder the service to authorized users.

Thus, it is quite evident that Tag 1 is better in terms of performance than Tag 2. 15 Comparison of tags in front of water based on operating frequency Frequency dependent analysis gives insight into the detuning effects of the ­antennas, permits a way to analyze better antenna designs for specific materials, and provides a performance criterion through which a globally visible tag can be developed. 4 Overview of Ultra-Wideband Technology Noise Floor PSD Amplitude Many of the difficulties in tag-reader communications associated with narrowband signaling discussed earlier in this chapter can be addressed through the use of ultrawideband (UWB) technology in new generations of RFID systems.

Portions reprinted with permission from “Performance Benchmarks for Passive UHF RFID Tags” Master’s Thesis by Karthik Ramakrishnan, University of Kansas, 2003. 11 Test setup for performance in front of materials performance are metal and water. Water and metal affect tag performance in a ­number of ways. They provide multi-path and create fading zones. In fact, metals can be used to boost the performance of tags. The presence of high-dielectric ­material in the near field of the tag causes detuning of the antenna, so the antenna would resonate at a lower frequency.

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