If you are a radio amateur, you may be familiar with the magnetic loop antenna. It’s different from most conventional wire antennas, taking the form of a tuned circuit with a very large single ...

I’d love to build a magnetic loop antenna. The bulk of the construction is easy to do. The main killer is the capacitors. Vacuum varicaps are hugely expensive and you have to be very careful ...

This White Paper looks at the characterisation of magnetic loop antennas — those sensitive to the magnetic component of an electromagnetic field. Generally, such antennas are intended for use ...

See Figure 2. This shielding has the very beneficial effect of rejection of electrostatic fields — often the source of noise getting in to an AM receiver. Since the shield is open, the incident ...

They're developing a method of tracking a football via low-frequency magnetic fields. The system involves equipping the football with a battery, magnetic transmitter, and loop antenna.

The loop antenna appears to be the primary as a transformer because of the large magnetic field it generates. 3. Boundaries of the near and far fields are shown with respect to wavelengths at the ...

Fig. 1 illustrates the nightly coincidence of micropulsations, measured with a 6-ft. diameter magnetic north axis loop antenna of 21,586 turns and 3914-Å. auroral pulsations from 70° of sky ...