Simulation and Measurements of Electric and Magnetic Fields of an RFID Loop Antenna Anti-Theft Gate System
نویسندگان
چکیده
The radiation of RFID anti-theft gate system based on two parallel coaxial square loop antennas has been analyzed. The system was simulated in FEKO and near electric and magnetic fields have been calculated. A physical model of the system was realized and near magnetic field was measured. Measurement results were found to be in excellent agreement with the simulation. The obtained simulation and measurement results have been compared to the exposure limits given as reference levels in the ICNIRP guidelines. No violation of limits has been shown, regarding both occupational and public exposure.
منابع مشابه
Design of a Novel Dual-loop Gate Antenna for Radio Frequency Identification (rfid) Systems at Low Frequency Band
In this paper, a dual-loop gate antenna is designed to generate the magnetic field distribution in various directions. It is applied to Radio Frequency Identification (RFID) systems for animal identification operating at the low frequency (LF) band of 125 kHz and 134.2 kHz. The percentage of volume of magnetic field intensity is introduced and used as a figure of merit in the design. The optimu...
متن کاملElectromagnetic Field Due to Lightning Strikes to Mountainous Ground
The produced electric and magnetic fields due to lightning strikes to mountainous ground are determined in this paper. For the sake of simplicity a cone-shaped ground with finite conductivity is assumed to represent a natural nonflat ground. By this assumption, we deal with an axillary symmetrical structure so we use the cylindrical 2D-FDTD to save the simulation memory and time, dramatically. ...
متن کاملAssessment of Extremely Low Frequency (ELF) Electric and Magnetic Fields in Hamedan High Electrical Power Stations and their Effects on Workers
Introduction: Public and occupational exposure to extremely low frequency (ELF) electric and magnetic fields induced by electrical equipment is a significant issue in the environment and at the workplace due to their potential health effects on public health. The purpose of this study was assessment of the electric and magnetic fields intensities and determination of mental and psychological ef...
متن کاملبررسی شدت میدان های مغناطیسی و الکتریکی اطراف رایانه های مورد استفاده و تاثیر آن بر سلامت کاربران
Background and aimsIntensity of Magnetic and Electric fields around visual displayterminals and its association on health effects were studied.Methodsmagnetic and electric fields intensities around 237 VDTs at distances 30¡50¡ 60 cm and different operating conditions (active¸ screen saver¸ shut down) with use of HI-3603 device according to Svensk standard method were monitored. Resultsmagnetic...
متن کاملDesign, simulation and Fabrication of Circularly Polarized Fabry-Perot Antenna for Ku Band
This paper deals with the design and simulation of a RHCP Fabry-Perot antenna for 14.5 GHz. Based on transmission line model, partially Reflecting Surface (PRS) was designed so thatgain enhancement and circular polarization simultaneously obtained. PRS consist of a square loop and meander-line at the top and bottom respectively. In order to achieve the resonance condition in orthogonal componen...
متن کامل