Do receiver antennas need matching or not?

What has not been mentioned much is that AM band broadcast receivers and FM band receivers are designed to to tune over a fairly wide band of frequencies; so very difficult to build antenna that will mtach at all those different 'wavelengths'.

For example; the broadcast band (North America) is roughly 550 kilohertz (that's 545 metres wavelength) to about 1.7 megahertz (about

On FM, 88 to 108 megahertz (3.4 to 2.8 metres) the ratio is less but still cnsiderable at 1.2:1 So again very difficult to design and build an 'all frequencies' antenna.

For stations designed to receive only one frequncy the antennae can be constructed for that only; hence the matching can be as optimum as possible.

HOWEVER, if you will look at the Antenna Design for a AM Broadcast Receiver, using a Ferrite Loop Antenna, you WILL notice that the Loop IS Tuned to the specific part of the band that the receiver is being tuned to, by Linked Ganged Variable Capacitors, in the Receivers Frontend. These designs have been around for MANY years, (1940's anyway) and are a very mature technology.