Microwave detection circuit verification

Thread Starter

pralayp

Joined Apr 8, 2020
2
Dear all,
I want to develop a circuitry which is able to detect electromagnetic waves(radio-wave , micro-wave).
This circuit will just act as a tamper detect and not physically measure/compute the radiation.
I have designed the circuit using toroid ring and few Schottky diodes.
The calculation formulae's are in the attachment.
Before testing the circuit, I wanted to verify the circuit as well as the calculation part of it.
Please note that the WAVE_SENSE signal in the design is connected to a 10-bit ADC of a Microcontroller.
Anyone related, Please help me achieve this task.

Thanks in advance.
 

Attachments

DickCappels

Joined Aug 21, 2008
7,746
I checked mine by holding it near an operating microwave over, a cell phone, an AM radio transmitter (433 MHZ) and keyfob trasmitter at 330 MHz.
 

Thread Starter

pralayp

Joined Apr 8, 2020
2
If the coil is wound on a toroid wouldn't that make it much less sensitive to external signals?
So, what could possibly be an alternative to this.
To a coil??
Please help me on this. Have you come across a device which could detect microwaves??
 

DickCappels

Joined Aug 21, 2008
7,746
My field strength indicators use antennas, usually just several cm of insulated wire. No need to use the inductor as an antenna.

1620112086935.png
 
Top