Microwave doppler radar testing circuit
Microwave doppler radar testing circuit
(OP)
We are developing a microwave doppler radar test circuit to achieve motion detection through walls. To begin with, for this application we need a Oscillator/frequency sythesizer ranging around 1-4GHz. Could suggest me a suitable oscillator device for testing purpose?
If possible, could you also suggest a compatible Multiplier/Mixer to give the IF output and an Antenna.
If possible, could you also suggest a compatible Multiplier/Mixer to give the IF output and an Antenna.
RE: Microwave doppler radar testing circuit
I believe this was discussed earlier (a couple of years ago) you should do a search in here.
RE: Microwave doppler radar testing circuit
Modules available on eBay for $1 price class. Reportedly operates at about 3.2 GHz. I'm not sure if the design includes the baseband output (audio of the Doppler tone).
RE: Microwave doppler radar testing circuit
@VE1BLL: Already tried the readily available modules. So we plan to design a circuit from scratch.
RE: Microwave doppler radar testing circuit
Many of the other modules operate on 10.525 or 24.xxx GHz. That PN I mentioned was the only one I've seen that was in the lower frequency range that you mentioned. You'll have to consider the legal ISM bands in your Region and jurisdiction for this "Field Disturbance" application.
For Doppler, typically the LO is the transmitted RF. These days, the oscillator would presumably work directly at the operating frequency (without requiring a Multiplier).
Good luck.