Normally, an impedance matching network matches the impedance of the antenna to the impedance of the transmission line feeding it.
12.
Except for the latter concern, the resonant frequency of an antenna system can always be altered by adjusting a suitable matching network.
13.
This adjustment is done with a device called an antenna tuner in the transmitter, and sometimes a matching network at the antenna.
14.
For instance, the matching network may be designed as a Chebyshev filter but is optimised for impedance matching instead of passband transmission.
15.
It is noteworthy to mention again that each radiating element must have a different feed structure and most likely a different matching network.
16.
Matching networks using discrete inductors and capacitors will have losses associated with those components, and will have power restrictions when used for transmitting.
17.
RF MEMS components are fragile and require wafer level packaging or single chip packaging which allow for hermetic matching networks require single chip packaging.
18.
The stability of the amplifier remains the same when it is fed via a lossless matching network and feeds into a lossless matching network.
19.
The stability of the amplifier remains the same when it is fed via a lossless matching network and feeds into a lossless matching network.
20.
The matching networks in transmitters sometimes incorporate a balun or an external one can be installed at the transmitter in order to feed a balanced line.
