AM Loop Antenna Calculator
Based on the Bob's Tesla Lab Formula
by Bruce Carter
3-22-2011
Enter loop radius (inches) :
Enter loop width (inches) :
Select number of turns :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Enter highest capacitance (pF) :
Enter lowest capacitance (pF) :
Loop inductance (
m
H
) :
Lowest tuned frequency (kHz) :
Highest tuned frequency (kHz) :
NOTES
Parasitics in the loop - inter turn capacitance in particular - are not taken into account. They will limit the high frequency response of your loop, so the estimate of maximum frequency is probably off.