6 x 6 Loop Antenna
This new loop antenna is his best design yet and I am proud to be the first to present
his work. It uses one, six foot square, six turn loop, and is aperiodic in nature, covering the
frequency range 50KHz, 5000KHz… [Design by Graham Maynard].
Notes.
This new loop antenna by Graham Maynard is his best design yet and I am proud to be the first to present his work.
It uses one, six foot square, six turn loop, and is aperiodic in nature, covering the frequency range 50KHz - 5000KHz.
The loop is of a size that can be mounted inconspicuously against a garden fence away from household interferences. This new '6x6' design uses the centre tapped loop winding as an input phase splitter. This ensures low distortion push-pull operation. The amplifier also has a low impedance shunt input which maximises gain. These aspects give it a better signal to noise ratio than with a single ended or high impedance amplifier. The amplifier provides a useful gain of 42 - 54dB over its frequency range, see the Bode Plot below. Please note, that the Bode plot is derived for the amplifier circuit ONLY, it is not possible to simulate the characteristics of a six foot square loop.
The loop is of a size that can be mounted inconspicuously against a garden fence away from household interferences. This new '6x6' design uses the centre tapped loop winding as an input phase splitter. This ensures low distortion push-pull operation. The amplifier also has a low impedance shunt input which maximises gain. These aspects give it a better signal to noise ratio than with a single ended or high impedance amplifier. The amplifier provides a useful gain of 42 - 54dB over its frequency range, see the Bode Plot below. Please note, that the Bode plot is derived for the amplifier circuit ONLY, it is not possible to simulate the characteristics of a six foot square loop.
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