Loop antennas aren’t ideal–but neither is any other small antenna. Because the loop is tightly tuned to a particular frequency, it requires retuning for even relatively small frequency changes ...

However, for such a small loop covering 3 to 30 MHz, the antenna seems to perform very well. We like that the active part of it has a rechargeable battery. Obviously, ...

Figure 15 shows the equivalent schematic of a small loop antenna. 15. Equivalent Schematics of the Small Loop Antenna in Figure 13. The radiation resistance of loop antennas is small, typically ...

Measuring magnetic loop antenna performance. Paper 403: Measuring magnetic loop ... An alternative to these traditional methods involves the use of a ‘small coil’ placed at the centre of the ...

Variation on the Shielded-Loop AM Antenna Mar 25, 2002 12:00 PM Greg Manfroi of WIUM/WIUW, Western Illinois University, Macomb, IL, sent us this idea on a construction method for the shielded-loop AM ...

The FXP.611 Cloud is a GPS/Glonass flexible loop antenna that resists external detuning effects. With a small form factor of 38 x 37 x 0.1mm, the peel and stick, flexible loop antenna targets ...

It’s convenient, but it leaves your car wide open to thieves to either break in or drive the car away, using nothing but a $17 amplification device and a small loop antenna.