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Comparison...............your point of view required

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R

Rf engineer

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Hi friends

I need some very accurate and practical comparisons of

Dipole constituted phased arrays

OVER

Loop antenna ,Folded Dipole Antenna constituted phased arrays.

we normally use half wave dipole antenna arrays......why dont other not much in practice??

Plz reply details or upload a document purely on performance comparison.

Best regards
 

Dipoles: Gives E-field parallel to the dipoles axis

Loops: Give E-field normal to the loop axis

Folded dipoles: same as dipoles but have a higher input impedance (4 times for a regular folded dipole)

you are right concerning their usage, but I think this is because the coupling between the elements is probably higher in the loops and you do not the 300 ohms resonance impedance provided by folded dipoles.

best wishes,
Adel
 

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