Specific absorption rate and electric field measurements in the near field of six mobile phone base station antennas

2009 ◽  
Vol 30 (4) ◽  
pp. 307-312 ◽  
Author(s):  
Tommi Toivonen ◽  
Tim Toivo ◽  
Lauri Puranen ◽  
Kari Jokela
Keyword(s):  
Electric Field ◽  
Mobile Phone ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Near Field ◽  
Field Measurements ◽  
Base Station ◽  
Base Station Antennas ◽  
Mobile Phone Base Station ◽  
Electric Field Measurements

Post-processing of electric field measurements to calibrate a near-field dipole probe

2011 ◽  
Vol 5 (2) ◽  
pp. 29-36 ◽  
Author(s):  
Z. Riah ◽  
D. Baudry ◽  
A. Louis ◽  
M. Kadi ◽  
B. Mazari
Keyword(s):  
Electric Field ◽  
Near Field ◽  
Field Measurements ◽  
Post Processing ◽  
Electric Field Measurements

Characterizing a GPR antenna system by near-field electric field measurements

Geophysics ◽  
2007 ◽  
Vol 72 (5) ◽  
pp. A51-A55 ◽  
Author(s):  
Rita Streich ◽  
Jan van der Kruk
Keyword(s):  
Electric Field ◽  
Field Data ◽  
Near Field ◽  
Field Measurements ◽  
Input Voltage ◽  
Antenna System ◽  
Inversion Method ◽  
Migration Imaging ◽  
Imaging Algorithms ◽  
Electric Field Measurements

A method to determine current distributions on resistively loaded Wu-King-type antennas from sparse near-field measurements of the electric field is introduced. We use a parametric formulation of current flow and invert the measured data to determine the characteristic antenna parameters and input voltage wavelets that best explain the measured electric-field data. We compare modeled and measured electric-field data to show that our inversion method yields reasonable results and that our antenna model provides a means to correct for the effects of an antenna’s finite length in migration/imaging algorithms. By modifying the description of the current distribution, our method may be adapted for various antenna types.

scholarly journals Comparative Analysis of SAR and Temperature Rise within Head Tissues Exposed to Radiofrequency Radiation From GSM Transceiver Base Station in South-South Nigeria.

2017 ◽  
Vol 13 (4) ◽  
pp. 4956-4961
Author(s):  
Ushie Patrick ◽  
O.D. Osahon ◽  
O. A. Ojo
Keyword(s):  
Temperature Rise ◽  
Near Field ◽  
Field Measurements ◽  
Threshold Value ◽  
Base Station ◽  
Whole Body ◽  
Threshold Values ◽  
Worst Case ◽  
Base Station Antennas ◽  
Peak Value

In this study, measurement of radiofrequency exposure due to cellular transceiver base station antennas was carried out. Both far and near field measurements of electric field and magnetic field level were made around selected transceiver base station antennas in selected South-South States Nigeria, with the aid of frequency-dependent equipment (CORNET, Electrosmog meter ED78S EMF RF/LF Dual mode model). The results obtained were analysed using thermal related indices such as specific absorption rate (SAR) with peak value in cerebrospinal fluid-CSF (0.095358W/kg), temperature rise with peak also in CSF (0.008381 oC). These results were compared with threshold values of 2 W/kg and 0.08 W/kg for SAR (over the head and whole body respectively), and 1oC for temperature rise as set by International Commission of Non Ionizing Radiation Protection (ICNIRP). The results indicate that none of the network operators in the study area have SAR above the recommended threshold value with the worst case observed in Calabar. 

scholarly journals Electric field measurements of the LH wave and ICRF near-field utilizing non-perturbative spectroscopic techniques

2015 ◽  
Author(s):  
E. H. Martin ◽  
J. B. O. Caughman ◽  
C. C. Klepper ◽  
M. Goniche ◽  
R. C. Isler ◽  
...  
Keyword(s):  
Electric Field ◽  
Near Field ◽  
Field Measurements ◽  
Spectroscopic Techniques ◽  
Electric Field Measurements

Estimation Formulas for the Specific Absorption Rate in Humans Exposed to Base-Station Antennas

2011 ◽  
Vol 53 (4) ◽  
pp. 909-922 ◽  
Author(s):  
Marie-Christine Gosselin ◽  
Günter Vermeeren ◽  
Sven Kuhn ◽  
Valpré Kellerman ◽  
Stefan Benkler ◽  
...  
Keyword(s):  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Base Station ◽  
Specific Absorption ◽  
Base Station Antennas
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