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Writer's picturextgaby

Wall-mounted loop antenna

To reduce interference from man-made noise, I often use a loop antenna which is known for its ability to decrease unwanted signals.

I don't use this antenna to transmit.


Advantage: antenna does not take up extra space.

Disadvantage: antenna is not rotatable.

Keep in mind that there is no metal close to the antenna.


Detail of the Coupling loop:


Detail of the capacitor:

Cmin = 30 pf in parallel with 200 pF = 230 pF ==> Resonance Frequency = 4.050 KHz

Cmax = 150 pf in parallel with 200 pF = 350 pF ==> Resonance Frequency = 3.336 KHz


Calculated L value = 6.5 µH


Measuring results:


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