Kory Ballew, Matthew Koeth, Edward Parchuke, Charles Parsons,

1
RFID ANTENNA DESIGN
Kory Ballew, Matthew Koeth, Edward Parchuke,
Charles Parsons, Richard Pierce, Laura Wright
khb042000_at_utdallas.edu, mjk035000_at_utdallas.edu,
efp051000_at_utdallas.edu, cxp022000_at_utdallas.edu,
rgp032000_at_utdallas.edu, law012200_at_utdallas.edu
Department of Electrical Engineering Erik Jonsson
School of Engineering Computer
Science University of Texas at Dallas Richardson,
Texas 75083-0688, U.S.A.
Engineering Approach
Goals

• 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.

• Project Constraints
• Radiating Environment
• Cost
• Materials
• Implementation to RFID Tag
• Design Software is available through the
  University
• Resources and Personnel
• Antenna Parameters
• 10 Bandwidth
• Range 860 to 930 MHz
• EPCGlobal Standards as described in the
  Project Overview
• Omni-directional Radiation Pattern
• Tag is 4cm x 4cm

Project Overview

• Analyze Current Technologies
• Frequency Range 860-930MHz
• EPCGlobal Standards
• UHF Class 1 Gen 2 V. 1.0.9 Standard Conformance
  Requirements
• Interoperability Test Methodology v1.2.4 for UHF
  Gen 2 RFID Devices
• Antenna Radiation Pattern Omni-directional
• Current Supply Management Environments
• Couple Coil
• Radiating Environments
• Analyze Antenna Designs
• Loop Antenna

Project Conclusions

• Antenna will be a double dipole
• The double dipole pattern shown below
  works for our program, because
• of its omni-directional patterning as
  well as the ability to cover the
• required bandwidth. Dimensions are shown
  in cm.
• Ideal Environment will be Radiating
• This environment was chosen because the
  readers can operate at
• farther ranges than the readers available
  in a couple coil environment

Radiating Environment