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La antena de cuadro o Magnetic Loop
The first antenna of this type that I made, was something similar to a frame antenna similar to those used by the old AM radios figure-1 left. With several turns of thin enameled copper wire and a variable capacitor between its terminals, about 300 pF
post 05 Dec 2024
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Antennas for the New Beacon Design
The new 3496 class-E high efficiency Beacon design
Bandpass receiving loops for 136kHz and 500kHz
I designed receiving loop antennas with a bandpass characteristic to cover the whole 136kHz band without the need for remote tuning
Broadband magnetic active antenna
I have built a broadband magnetic receiving antenna. The hardware is ready in a first expansion state
Build a simple magnetic loop antenna
For the main loop I used a soft copper tube, diameter is 10 mm, length about 3 meter. The smaller loop is about 60 cm in length diameter 1/5 of the main loop, material is 1,5 square mm copperwire
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The new 3496 class-E high efficiency Beacon design
I designed receiving loop antennas with a bandpass characteristic to cover the whole 136kHz band without the need for remote tuning
I have built a broadband magnetic receiving antenna. The hardware is ready in a first expansion state
For the main loop I used a soft copper tube, diameter is 10 mm, length about 3 meter. The smaller loop is about 60 cm in length diameter 1/5 of the main loop, material is 1,5 square mm copperwire
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
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