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I guess by using near field coupling would be helpful to avoid the problems you mentioned? I am also thinking of using inductor-like microstrip antenna for near field coupling. But I don't know how to incorporate it with the resonator.
I see your point, but in my project, wireless modules are not needed, all I need to do is to transmit the signal from VNA via the antenna.
So the flow should be
VNA-->Antenna_1 <Free_Space> Antenna_2-->Sensor<--Antenna_3 <Free_Space> Antenna_4<--VNA
Therefore, everything is in analogue.
My...
Thanks for your reply.
But could you explain more about the wireless modules? Do you refer to it as the TX/RX antennas I used?
I agree that the resulting S21 affected by both the TX/RX antennas impedance as well as the sensor impedance (and antennas may have bigger contribution in my case). The...
Hi all
I am currently doing a project to make a wireless sensor, which should have the following structure:
My task is to connect the double split ring resonator (DSRR) and vector network analyser (VNA) wirelessly. DSRR is a microstrip resonator whose resonant frequency shifts if liquid is...
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