I have a dipole antenna designed to work on ~800MHz and 2.44GHz frequency, and a miniVNA Tiny USB device that I can use to measure return loss of the antenna. I connect the antenna directly to the DUT port of the VNA and run the measurement.
I am working from home and of course there are plenty sources of 2.44GHz emission around like WiFis, and I am wondering do the sources have a significant effect on what I see as the measured S11 return loss of the antenna? Or can I ignore their effect?
And what do you suggest for more accuracy in home working environment?
If I check two antennas at the same condition, and one gives a better (lower) s11 on desired frequency, should I say it's a better one, or worse? Since if it is better then it might also pickup the interference better!