Different frequencies but same temperature increase (antenna and biological tissue)

Hi;

Let's imagine that I have an antenna and a biological tissue.
The antenna emits the frequency of 1e7 Hz and I have a temperature increase x.
When the antenna emits the frequency of 3e7 and 6e7 Hz the temperature increase is the same.
How can I explain?

russ_watters
Mentor
Several possible explanations:
1. Same power output.
2. Same sbsorption.
3. The temperature increase was due to the electric space heater placed under the biological tissue and had nothing to do with the radio waves.

SHCampos
Several possible explanations:
1. Same power output.
2. Same sbsorption.
3. The temperature increase was due to the electric space heater placed under the biological tissue and had nothing to do with the radio waves.

The power output of the antenna is the same, but the absortion of the tissue is different, and there is no way that the temperature increase can only be related to tissue.
Anyway, thaanks!

russ_watters
Mentor
...the absortion of the tissue is different...
How can you be sure of this?

jbriggs444
Homework Helper
3. The temperature increase was due to the electric space heater placed under the biological tissue and had nothing to do with the radio waves.
4. The biological tissue is living (or decomposing) and self-generating thermal energy.

Is there a control sample that is not irradiated?

russ_watters
ZapperZ
Staff Emeritus
Hi;

Let's imagine that I have an antenna and a biological tissue.
The antenna emits the frequency of 1e7 Hz and I have a temperature increase x.
When the antenna emits the frequency of 3e7 and 6e7 Hz the temperature increase is the same.
How can I explain?

This is silly. You’re asking us to explain something you imagined! Imagine that!

I imagine no temperature change. My imagination is as valid as yours.

Zz.

russ_watters, Vanadium 50, nasu and 1 other person
russ_watters
Mentor
I imagine no temperature change.
My imaginary space heater disagrees.

How can you be sure of this?
Because the SAR (Specific Absorption Rate) is differente

4. The biological tissue is living (or decomposing) and self-generating thermal energy.

Is there a control sample that is not irradiated?
This makes a lot of sense
Thank you