On 10 Mrz., 21:41, "Al" wrote:
Is there a nominal impedance or approximate impedance for a loop antenna?
For example, a dipole is considered 72-ohm, a bevarage 450-ohm. What is a
nominal loops Z?

I have a 4-1/2 foot diameter loop antenna with 12 turns paralled by a
capacitor for the antenna and one additional turn for the pickup coil. The
loop is for the 200 - 500kHz band. About how much is the impedance of such
an antenna? Thanks.

Al

In the legacy Reg Edwards left is a program that will tell you what to
expect from square loops. If you analyze a square loop with the same
loop area as your (presumably round) loop, you should be close. The
loop alone will look like a low resistance in series with the
inductive reactance of the loop; resonated with a capacitor, the
impedance will be much higher. The low resistance will most likely be
strongly dominated by the resistance of the wire from which the loop
is made.

Cheers,
Tom