Hi everybody,
I have a question about impedance response of tag antenna...
{How to define a good impedance response ?}
From the attached 1, the diagram of RHS had a good agreement comparing with that of LHS. Is it because the trendency of both impedance (resistance & reactance) are the same (when resistance is increased, reactance is also increased) in 800MHz - 1GHz? but the LHS diagram, both trendency are opposite, so that the response is bad, is it right?
I had simulated a tag antenna for usage of UHF and get a result of impedance response(attached 2), is the response good or not?
Best Regards,
Guillaume