CAP-ANTENNA CALCULATOR
FORMULAS © DL7AHW
Calculation of Cap-Antennas
Surface area of radiator
mm
2
Frequency
MHz
Diameter of coil
mm
Diameter of wire
mm incl. isolation or gap
Capacitance of radiator
pF
Inductivity of coil
�H
Number of turns
Length of coil
mm
λ/4
m
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