TITLE

Investigation of Radiated Emissions from GPS Based Vehicle Tracking System Board and it's comparison with different EMI /EMC Standards and Remedies to reduce the Radiations

AUTHOR(S)
Jog, Shreenivas R.; Sutaone, M. S.; V. Badawe, V.
PUB. DATE
April 2012
SOURCE
International Journal of Computer & Electrical Engineering;Apr2012, Vol. 4 Issue 2, p127
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this research proposal, the Radiated Emissions from GPS based Vehicle Tracking System board (GPRS Based) have been investigated by using Agilent make Spectrum Analyser E4411-B, close-field EMI Probes 11940A and 11941A. Observations for Radiated Emissions are presented here as E-Field Strength, H-Field Strength and S-Power Density. Several techniques / methods to reduce radiation problems are studied and discussed. The ruggedised EMI enclosures using Aluminum, Silver filled conductive gaskets and Copper foil with conductive adhesives have been designed for GPS VTS (GPRS based) board. By implementation of EMI enclosure, the radiated emission reduced by around 20dB. The GPS VTS board with enclosure has been tested in the national EMI laboratory. These levels have been compared with EMI/EMC (Electromagnetic Interference/Electromagnetic Compatibility) standards like MIL-STD-461E and CISPR. The measured radiation level in frequency band 30MHz to 2.5GHZ has been restricted to around 25 dB μV/m in horizontal and vertical directions. The Radiated Emission level in frequency band 150 KHz to 30 MHz has been found to be just at the border of MIL-461E. This level can be reduced by using Magnetic material like MuFerro 6800 sheet in enclosure. The designed enclosure meets compatibility requirements for Radiated Emission as per MIL-STD-461E, CISPR standard and radiation reduced to safer level for human being.
ACCESSION #
75499163

 

Related Articles

  • Achieving Full Compliance on the First Try. Handlon, Dennis // EE: Evaluation Engineering;Oct2011, Vol. 50 Issue 10, p32 

    The article discusses how companies have improved their chances of succeeding on the first try by adding precompliance electromagnetic interference (EMI) testing to their development process. It notes that the most successful approach is to perform the checks at multiple stages. It also cites...

  • Analyzing and Mitigating the Near-field Radiations from PCB of GPS-based Vehicle Tracking System. Jog, Shreenivas R.; Deshpande, Isha; Sutaone, M. S.; Badawe, V. V. // IETE Journal of Research (Medknow Publications & Media Pvt. Ltd.;Jul/Aug2013, Vol. 59 Issue 4, p392 

    The EMI/electromagnetic compatibility (EMC) analysis is becoming very important in today's world of dense EMI environment. As we go toward accuracy and stability of any electronic product in dense EMI field, it is necessary to test it at printed circuit board (PCB) level. This paper describes...

  • An ever-present threat.  // Environmental Engineering;Apr2014, Vol. 27 Issue 2, Special section p1 

    The article reports on the emergence of pollution associated to electromagnetic compatibility (EMC). It discusses the increasing problems related to the uncontrolled emissions of electromagnetic interference (EMI) and radio frequency interference (RFI) due to parallel proliferation in devices....

  • MODELING RADIATED ELECTROMAGNETIC EMISSIONS OF ELECTRIC MOTORCYCLES IN TERMS OF DRIVING PROFILE USING MLP NEURAL NETWORKS. Wefky, Ahmed M.; Espinosa, Felipe; de Santiago, Luis; Gardel, Alfredo; Revenga, Pedro; Martínez, Miguel // Progress in Electromagnetics Research;2013, Vol. 135, p231 

    Current automotive electromagnetic compatibility (EMC) standards do not discuss the effect of the driving profile on real traffic vehicular radiated emissions. This paper describes a modeling methodology to evaluate the radiated electromagnetic emissions of electric motorcycles in terms of the...

  • EMI Power Filters Crush the Noise. Titus, Jon // ECN: Electronic Component News;Jan2007, Vol. 51 Issue 1, p31 

    The article provides information on topics related to conducted electromagnetic interference. Conducted emissions has two forms. The first is the differential mode which appear primarily on one input-power lead. On the other hand, the second form, which is the common mode, appear on both...

  • Two methods for transmission line simulation model creation based on time domain measurements. Rinas, D.; Frei, S. // Advances in Radio Science;2011, Vol. 9, p117 

    The emission from transmission lines plays an important role in the electromagnetic compatibility of automotive electronic systems. In a frequency range below 200 MHz radiation from cables is often the dominant emission factor. In higher frequency ranges radiation from PCBs and their housing...

  • Dither a power converter's operating frequency to reduce peak emissions. Bell, Bob; Smith, Grant; Thompson, Brad; Granville, Fran // EDN;10/13/2005, Vol. 50 Issue 21, p99 

    This article suggests to dither the operating frequency of a power converter to reduce peak electromagnetic interference emissions. Emission peaks typically occur at the converter's fundamental switching frequency and gradually reduce in amplitude at each higher order harmonic, with most of the...

  • EMC GUIDANCE. Josifovska, Svetlana // Electronics World;Aug2008, Vol. 114 Issue 1868, p5 

    The article discusses various reports published within the issue, including one the aspects of designing with electromagnetic interference (EMI) and electromagnetic compatibility (EMC) and another on the tips, ideas and methodologies as to how to best tackle the blights of EMI and EMC.

  • What are the most popular trends you see in EMC, and how do these trends pave the way for the reduction in electromagnetic interference?  // Wireless Design & Development;Jul/Aug2013, Vol. 21 Issue 4, p30 

    The article present answers to a question related to most popular trends in EMC, and means by which these trends pave the way for the reduction in electromagnetic interference.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics