I am designing a board having
nrf52832 and a chip antenna (
2450AT18B100 Johanson Technology) for 2.45 GHz (BLE basically). But I have few questions regarding standard
50 ohm characteristic impedance of
Antenna Feed Line.
In my PCB, antenna feed line will be
coplanar waveguide with bottom ground plane. As far as I know transmission line will have capacitance, inductance and resistance. But the standard suggests to keep impedance of antenna feed line to be 50 ohm (which is resistive).
Does that mean the transmission line will also resonate at RF frequency (2.45 GHz in my PCB) and it will be resistive at that frequency only?
The chip antenna (2450AT18B100 Johanson Technology) states that it has impedance of 50 ohm. Does that mean if my antenna feed line is of 50 ohm, then I won't need any matching components?