The difference between loaded and unloaded monopole

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ramy gad

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Antenna help?

what is the difference between loaded and unloaded monpole
?
 

Antenna help?

A loaded monopole antenna has a coil (inductor) in it.
 

    ramy gad

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Antenna help?

is the coil is used to resonate with the capacitance of the monopole at desired freq so that the ant become pure resistive?or what?
 

Antenna help?

>is the coil is used to resonate with the capacitance of the monopole at desired freq so that the ant become pure resistive?

yes
 

    ramy gad

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Antenna help?

how do i calculate the radiation resistance for loaded or un loaded monopole? also how do i calculate the cap?
does any one have a program to do this stuff?
also a monopole depend on the image theorm so i need a vertual ground how do i make it practically?
 

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