Upload
petersam67
View
437
Download
4
Tags:
Embed Size (px)
Citation preview
Kory Ballew, Matthew Koeth, Edward Parchuke, Richard Pierce, Laura Wright
Department of Electrical EngineeringErik Jonsson School of Engineering & Computer ScienceUniversity of Texas at DallasRichardson, Texas 75083-0688, U.S.A.
[email protected], [email protected], [email protected], [email protected], [email protected]
Goals: Engineering Approach:
Project Overview: Project Conclusions:
Design a RFID tag antenna for use in supply chain management.
Warehouse and distribution centers present a demanding environment for RFID implementation. The presence of EMI and EMF noise, along with different materials, and large equipment create unique challenges. Antenna performance of the RFID tag may increase overall system performance.
Antenna Design will be approximately UPC Size (4cm x 4cm) and meet EPCGlobal Specifications to ensure adoption by the RFID community and end users.
Analyze Current TechnologiesFrequency Range: 860-930MHzEPCGlobal Standards
UHF Class 1 Gen 2 V. 1.0.9 Standard Conformance RequirementsInteroperability Test Methodology v1.2.4 for UHF Gen 2 RFID Devices
Analyze Antenna Design Angles90 degree60 degree
Simulation AWR Sonnet
DesignUse CAD tools for Initial DesignFinal Design is a planned Deliverable for April, 2008
Social/Ethical ImplicationsCompliance with FCC Title 47, Part 15.247ensures that the radiated power does not present any social or ethical problems
Project ConstraintsCost
Materials available through the UniversityDesign Software is available through the University
Resources and PersonnelAntenna Parameters
1/8 wavelength monopole arrayRange: 860 to 930 MHzCenter Frequency: 900 MHzEPCGlobal Standards as described in the Project Overview Antenna is approximately UPC Sized (6cm x 6cm)
Simulation CharacteristicsFar-field radiation patternsCurrent distributionInput impedance
Antenna will be a double monopole The double monopole pattern shown below works for our program, because of its near omni-directional patterning, gain, and reflection coefficient.
Antenna Parameter ResultsGain: -5dBiS11 Parameters: -13dBAngular Separation of monopoles: 90 degrees