Short Guide
The system provides a section on the right for SAR properties definition.
The process is procedural using the control buttons provided allowing access to more properties that describes
different states favourable for precise SAR computation.
Section 1
To begin, use the 1st initial window (as shown in
Fig 1 below) to select the
Technology
of your target RF source/device.
Fig. 1: Simplified SAR calculator guide
Using
Next button, proceed to RF-source and ageset definition window.
Section 2
First, the immediate selection field in this section labelled
RF Source consists of a list of radio frequency (RF) sources/devices from which one is to select in relation to the technology type defined in section 1 above.
Note: this selection must clearly match the technology in step 1 above
Next, under
Ageset selection field one is required to select the target for which the SAR analysis is to be carried on. This is followed by specifying the actual gender of the target ageset in
step 3.1,. This
is as shown in
Fig. 2 below.
Fig. 2: Simplified SAR calculator guide
Selecting
Infant as the target ageset will require defining
age which is to be in a range of
[0 - 36] months. Age is a fundamental factor in
infant ageset as its to be used in
determining the average head size of the target ageset.
Note: age bracket is strict and entering a value off the range will be handled as an exception.
Therefore, with
Infant as the ageset,
Next button opens a section with an entry field for age definition (
by default set to zero[0]).
Fig. 3: Simplified SAR calculator guide
Section 3
Defining ageset as
Adult, will require no
age definition as the calculator uses average adult human head sizes for
male and
female genders as default values.
The head sizes for both agesets are clearly displayed in
step 4 of the final properties definition window under
Head size field. They're captured by radius in units of
centimeters [cm].
Finally, in this section the user is to define the seperation distance between the radio frequency (RF) source or device in the analysis e.g mobile phone and target human ageset. Depending on selected RF-source/device, one is required to define the units of calibration for the seperation distance. For instance,
centimeters [cm] forms suitable units for mobile phones, bluetooth dongles among others. By default, this value is set to
zero[0]. Next, to complete properties definition the calculator provides a selection field for
tissue type which constitutes of
skin, fat, bone and brain. These are the primary head tissues the whole analysis is all about and the general research as well in relation to RF radiation effects with
Brain being the center element.
Therefore, one is required to define a tissue
for which its
specific absorption rate (SAR) is to be computed.
Fig. 4: Simplified SAR age definition window
Section 4
The calculation is accomplished by the
Calculate button which invokes the display of
result section. This contains an SAR result display field with a result value defined in units of
watts per kilogram[W/Kg]. Alongside this SAR result value, there's
also a handy button labelled
Details which when clicked, invokes a small pop-up window with quite detailed information about the computed SAR analysis.
Fig. 5: Simplified SAR result window
Fig. 6: Simplified SAR calculation details
This forms the final step in SAR computation.
To perform new analysis, the
Clear button is provided to
clear and refresh the
properties definition section.
Note: ALL the entry fields must the filled as required!