SAR probe calibration: the results of an inter- comparison study

نویسندگان

  • Benjamin Loader
  • Lira Hamada
  • Soichi Watanabe
  • Daniel Bownds
چکیده

This paper gives the results of an intercomparison of the calibration results for four specific absorption rate (SAR) probes as measured by three independent laboratories. The artefact standards used for the calibration were matched waveguide cells that generate a calculable SAR level in a liquid phantom, and these systems are described, together with the measurement uncertainties. The results were found to be consistent with the quoted measurement uncertainties of the laboratories.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A SAR-Probe Calibration System Using A Reference Waveguide Antenna in Tissue-Equivalent Liquid

INTRODUCTION A SAR-probe is usually calibrated using a rectangular waveguide with a matching dielectric spacer below 3 GHz [1, 2]. However, the probe diameter is comparable with the aperture size of the waveguide above 3 GHz, and it can deteriorate the accuracy of the calibration. Therefore, an alternative calibration method using a reference antenna in the phantom liquid has been examined [3]....

متن کامل

A Novel SAR-Probe Calibration Method Using a Waveguide Aperture in Tissue-Equivalent Liquid

A novel method for calibrating the probes used in standard measurement systems to evaluate SAR (specific absorption rate) of the radio equipment operating at frequencies over 3 GHz is proposed. As for the proposed method, the electric-field distribution produced by a waveguide aperture installed in a liquid container is used to calibrate the SAR probe. The field distribution is shown to be the ...

متن کامل

Speckle Reduction in Synthetic Aperture Radar Images in Wavelet Domain Exploiting Intra-scale and Inter-scale Dependencies

Synthetic Aperture Radar (SAR) images are inherently affected by a multiplicative noise-like phenomenon called speckle, which is indeed the nature of all coherent systems. Speckle decreases the performance of almost all the information extraction methods such as classification, segmentation, and change detection, therefore speckle must be suppressed. Despeckling can be applied by the multilooki...

متن کامل

Development of an Alu-PCR Amplified YAC Probe Suitable for Enumeration of Chromosome 13 on Uncultured Lymphocytes and Amniocytes by Fluorescence in situ Hybridization

The main objective of the present study was to develop an efficient and reliable probe to be routinely used for detection of chromosome 13 copy numbers by interphase FISH. To achieve this, a Yeast Artificial Chromosome (YAC) containing sequences specific for human 13q12 (744D11), was cultured and the whole yeast genomic DNA was extracted. The human insert within the isolated DNA was amplified b...

متن کامل

Comparison of Single- site and Multi-site Based Calibrations of SWAT in Taleghan Watershed, Iran

Calibration of model is critical for hydrologic modeling of large watersheds in a mountain watershed. In this study Soil and Water Assessment Tool (SWAT) used to comparison a single-site calibration procedure that employed streamflow measurement at outlet of watershed to a multi-site calibration method that used streamflow measurements at three stations (Galinak, Joestan and Dehdar). Results sh...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009