Project Title:


KENET: CS-IS-EE RF Radiation Activity 2G+, Wi-Fi, IoT 2020, HEALTH Studies.


Simplified SAR Calculator

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!

Properties Definition Section












  •  Male
  •  Female











 [cm]












 [W/Kg]