On body wearable antenna

[Avin.rauf]

Dear.all
I work on microstrip patch antenna for UWB.please how put antenna on body?? Thanks

 

[Audioguru]

Can the wearable antenna be mounted on top of your head?

 

[Avin.rauf]

No i create a phantom model which consist of skin+ fat+ muscle ..

 

[Audioguru]

Are you making a radio controlled doll?

 

[Avin.rauf]

Dear.audioguru


I created microstrip and and phantom which mentioned.but i do not know how put antenna on this phantom(tissue?if directly putted the efficiency of antenna very poor which maximum 2%.so are any gap between of them.and the gap is air or any material ?and what is the standard distance between them?I am very grateful for your answer..

I use cst studio 2014

 

[Audioguru]

Sorry, the radio frequency you are using is probably much higher that I have worked with.

 

[EngineerMike]

Avin,

Do you have access to a 3D printer? Could you print an enclosure that would be about 2-3 mm thick, so the wearable device was not directly touching the skin? If the PCB were mounted in there flush with the enclosure, it would give you the distance you desire. Alternately, you could get creative and get a spacer (like a typical board spacer) or even a small plastic ring to offset the sensor from the body.

Reply back if this works!

 

[Avin.rauf]

Engineer Mike.
I have not 3D printer.I am not printed my antenna just simulated.can you explain step by step what I do in the program to get accurate result(I use CST studio 2014) ?thanks

 

[Avin.rauf]

Engineer mike
I did the same thing as you said the efficiency increased to 30% but i want to get higher 80% can you help me to do?thanks