Product standard for human exposure to electromagnetic fields from devices operating in the frequency range 0 Hz to 300 GHz, used in Electronic Article Surveillance (EAS), Radio Frequency Identification (RFID) and similar applications

2018 ◽  
Keyword(s):  
Radio Frequency ◽  
Electromagnetic Fields ◽  
Radio Frequency Identification ◽  
Human Exposure ◽  
Frequency Range ◽  
Frequency Identification ◽  
Product Standard

scholarly journals Design of Meander-Line Antennas for Radio Frequency Identification Based on Multiobjective Optimization

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
X. L. Travassos ◽  
A. C. Lisboa ◽  
D. A. G. Vieira
Keyword(s):  
Radio Frequency ◽  
Method Of Moments ◽  
Radio Frequency Identification ◽  
Optimization Problem ◽  
Geometric Constraints ◽  
Frequency Range ◽  
Frequency Identification ◽  
Identification Tags ◽  
Problem Formulations ◽  
Meander Line

This paper presents optimization problem formulations to design meander-line antennas for passive UHF radio frequency identification tags based on given specifications of input impedance, frequency range, and geometric constraints. In this application, there is a need for directive transponders to select properly the target tag, which in turn must be ideally isotropic. The design of an effective meander-line antenna for RFID purposes requires balancing geometrical characteristics with the microchip impedance. Therefore, there is an issue of optimization in determining the antenna parameters for best performance. The antenna is analyzed by a method of moments. Some results using a deterministic optimization algorithm are shown.

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