Advanced Chipless RFID: MIMO-Based Imaging at 60 GHz - ML - download pdf or read online

By Nemai Chandra Karmakar, Mohammad Zomorrodi, Chamath Divarathne

ISBN-10: 1119227313

ISBN-13: 9781119227311

Introduces complicated high-capacity information encoding and throughput development ideas for absolutely printable multi-bit Chipless RFID tags and reader systems

The publication proposes new methods to chipless RFID tag encoding and tag detection that supersede their predecessors in sign processing, tag layout, and reader architectures. The textual content is split into major sections: the 1st part introduces the basics of electromagnetic (EM) imaging at mm-wave band to augment the content material potential of Chipless RFID platforms. The EM Imaging via man made Aperture Radar (SAR) strategy is used for facts extraction. the second one part provides a couple of clever tag detection innovations for latest chipless RFID structures. A Multiple-Input and Multiple-Output (MIMO) dependent tag detection approach improves the spectral potency and raises information bit potential. The ebook concludes with a dialogue of the way the MIMO strategy might be mixed with the picture established strategy to introduce an entire answer with a quick imaging method of chipless RFID platforms. The e-book has the next salient features:

  • Discusses new ways to chipless RFID tags comparable to EM imaging, excessive potential facts encoding, and powerful tag detection techniques
  • Presents innovations to reinforce information content material potential of tags and trustworthy tag detection for the readers at unlicensed microwave and mm-wave 2.45, 24 and 60 GHz instrumentation, medical and clinical (ISM) frequency bands
  • Includes case experiences of real-world applications

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Extra resources for Advanced Chipless RFID: MIMO-Based Imaging at 60 GHz - ML Detection

Example text

A super narrow beam antenna is required at the craft station to precisely scan the earth surface. However, based on the antenna theory, this super narrow beamwidth radiation mandates a massive antenna with few-kilometer size. Fabrication of such antennas with kilometer size is extremely difficult and handling it by an air-/spacecraft station is impractical. Instead of utilizing an impractical big antenna, Wiley [6] proposed to simply move a small antenna around the earth and constructively add the received signal at different positions of the radar system.

1 Reflection strength based on terrain roughness in earth imaging system [1]. 2 { 0 1 0 0 1 1 0 1 0 0 1 0 1 ❦ Dielectric strip Initial proposed tag structure based on earth imaging concept. Considering the tag cost expectation of less than one cent (1¢), the tag shall be shaped by only combining conductive and nonconductive sections. Moreover, elements on the tag structure shall be very simple; otherwise, system performance will be significantly degraded due to the noticeable printing errors on the millimeter-band 60 GHz.

This concept is called synthetic aperture radar (SAR) to signify that a signal synthesis accomplishes what would otherwise require a large antenna aperture. In other words, a large synthetic aperture antenna is formed by a moving small antenna over the target region. The target is repeatedly illuminated with radio wave pulses at different frequencies, and the echo waveforms received successively at the different antenna positions are coherently detected and stored, and then postprocessed together to resolve elements in an image of the target region.

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Advanced Chipless RFID: MIMO-Based Imaging at 60 GHz - ML Detection by Nemai Chandra Karmakar, Mohammad Zomorrodi, Chamath Divarathne

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