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LCR Resonances
Resonance in AC circuits implies a special frequency determined by the values of the resistance , capacitance , and inductance
post 08 Apr 2024
Antenna Calculator Links →
EZNEC antenna software
EZNEC v. 6.0 programs function on Windows XP(SP3) and later Windows operating systems, 32 or 64 bit
Folded dipole antenna input impedance calculator
If you play with the numbers, and get the input impedance down to 200ohms, you'll need a 4:1 balun to feed it from 50 ohm coax
Folded Dipole Calculator
The impedance of this antenna is around 300 ohm, so you may want to use a transformer or a 1/4 long piece of 120 ohm coaxial cable to match this impedance to 50 ohm
Impedance Transformation with Quarter-Wave Lines
The input impedance of a line an odd multiple of 1/4 long is
Inductive Reactance Calculator
An online inductive reactance calculator: write frequency, inductance
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EZNEC v. 6.0 programs function on Windows XP(SP3) and later Windows operating systems, 32 or 64 bit
If you play with the numbers, and get the input impedance down to 200ohms, you'll need a 4:1 balun to feed it from 50 ohm coax
The impedance of this antenna is around 300 ohm, so you may want to use a transformer or a 1/4 long piece of 120 ohm coaxial cable to match this impedance to 50 ohm
The input impedance of a line an odd multiple of 1/4 long is
An online inductive reactance calculator: write frequency, inductance
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane