| EPSRC Reference: |
GR/H83584/01 |
| Title: |
INTERACTION OF THE BODY WITH RADIOEMISSONS FROM HAND HELD TRANSCEIVERS |
| Principal Investigator: |
Excell, Professor PS |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Electronic & Electrical Engineering |
| Organisation: |
University of Bradford |
| Scheme: |
LINK |
| Starts: |
01 August 1992 |
Ends: |
30 November 1995 |
Value (£): |
143,531
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| EPSRC Research Topic Classifications: |
| RF & Microwave Technology |
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Summary on Grant Application Form |
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To develop and validate a flexible computer procedure for prediction of the distribution of specific absorption rate in the body of a user of a hand-held transceiver, the body to be represented as a detailed inhomogeneous lossy-dielectric structure and the transceiver to be modelled in adequately fine detail and capable of arbitrary re-orientation. Validation to be undertaken using Surrey probes with an artificial human head in an anechoic chamber.A finite-difference time-domain software model was adopted and initial validation exercises were undertaken using spheres of lossy-dielectric material. Comparison was made with analytical models and with measurements in the anechoic chamber and good results were obtained. A magnetic resonance image of a human head was obtained and classified into continguous regions of constant dielectric properties. This was used as the input data for a computer model with a simple generic transceiver as the irradiation source. Plots of the distribution of specific absorption rate (SAR) were obtained. Hardware experiments, generating data for validation of computer predictions, were undertaken with the generic transceiver and two commercial transceivers. Measurements were undertaken with these in free space and placed adjacent to spherical structures simulating the human head. An accurate phantom representation of a human head and hand has now been received from former project partners Microwave Consultants Ltd. and this is being used in a new series of experiments, having first being imaged in a magnetic resonance device.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.brad.ac.uk |