By Amin Rida, Manos Tentzeris
This ebook provides a step by step dialogue of the layout and improvement of radio frequency identity (RFID) and RFID-enabled sensors on versatile good value substrates for UHF frequency bands. a variety of examples of absolutely functionality development blocks (design and fabrication of antennas, integration with ICs and microcontrollers, strength assets, in addition to inkjet-printing ideas) reveal the progressive impact of this strategy in least expensive RFID and RFID-enabled sensors fields. This strategy might be simply prolonged to different microwave and instant purposes to boot. the 1st bankruptcy describes the elemental performance and the actual and IT-related ideas underlying RFID and sensors expertise. bankruptcy explains intimately inkjet-printing expertise supplying the characterization of the conductive ink, which is composed of nano-silver-particles, whereas highlighting the significance of this know-how as a quick and easy fabrication method specially on versatile natural substrates similar to Liquid Crystal Polymer (LCP) or paper-based substrates. bankruptcy 3 demonstrates numerous compact inkjet-printed UHF RFID antennas utilizing antenna matching thoughts to check IC's complicated impedance as prototypes to supply the evidence of inspiration of this expertise. bankruptcy 4 discusses the advantages of utilizing conformal magnetic fabric as a substrate for miniaturized high-frequency circuit purposes. additionally, in bankruptcy 5, the authors additionally contact up the state of the art sector of fully-integrated instant sensor modules on natural substrates and exhibit the 1st ever 2nd sensor integration with an RFID tag module on paper, in addition to the potential for 3D multilayer paper-based RF/microwave constructions. desk of Contents: Radio Frequency id creation / versatile natural comparatively cheap Substrates / Benchmarking RFID Prototypes on natural Substrates / Conformal Magnetic Composite RFID Tags / Inkjet-Printed RFID-Enabled Sensors
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"The writer presents a considerable, updated assessment of the verification and validation process…" (Computer journal, November 2004) "The unifying dialogue at the formal research and verification equipment are specially worthwhile and enlightening, either for graduate scholars and researchers. " (International magazine of basic structures, December 2003) the 1st publication to supply a finished assessment of the topic instead of a set of papers.
". .. Ben has been the world-wide guru of this expertise, supplying aid to purposes of all kinds. His genius lies in dealing with the super advanced arithmetic, whereas even as seeing the sensible concerns fascinated with using the consequences. As this ebook basically indicates, Ben is ready to relate to newcomers drawn to utilizing frequency selective surfaces and to provide an explanation for technical information in an comprehensible method, liberally spiced along with his certain model of humor.
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Additional info for Design and Development of RFID and RFID-Enabled Sensors on Flexible Low Cost Substrates (Synthesis Lectures on Rf/Microwaves)
A) Resistance (b) Reactance. 52 CHAPTER 4. 3: Measured return loss of the RFID tag antenna on the magnetic material with the comparison of the one on the silicone substrate. In measurement, a GS 1000 μm pitch probe was used for impedance measurements. 06 resembling that of the free space. The calibration method used was short-open-load-thru (SOLT). The initial structure was designed for the lower end of the UHF spectrum and was modeled using Zeland IE3D full wave EM software. 3 mm thickness. Then the same dimensions of the antenna were maintained for the magnetic composite material.
The prototype antenna to be measured was treated as the transmitter and was connected with a coaxial cable to the Vector Signal Generator. 60 m on a piece of polystyrene foam using thin adhesive tape, as shown in Fig. 27. Polystyrene foam was used to hold the antenna in place, simulating a free-space environment. The AN-400 antenna is a commercial RFID reader antenna and is treated as the receiver in the experimental setup. 60 m, as shown in Fig. 28. Both distances were measured from the middle point 40 CHAPTER 3.
1. 039. The free space wavelength at 480 MHz is 692 mm. An RFID tag that has the miniaturized features is becoming more of a necessity, for example, in the implementation of an RFID-enable wristband for wireless health monitoring in hospital. To achieve this design goal, a folded bow-tie meander line dipole antenna was designed and fabricated on the characterized magnetic composite material substrate. The RFID prototype structure is shown in Fig. 1 along with dimensions, with the IC placed in the center of the shorting stub arm.