Magnetic loop antennas are great if you are limited on space since they are just a potentially small loop of wire. The problem is, they are sharply tuned. You normally have an adjustment capacitor to ...

Fig 3. DockOn’s CPL antenna is based on a collocated magnetic loop dipole and an electric dipole. The dipole moments have to be orthogonal to prevent the two elements from radiating as two separate ...

Designers have taken strides to reduce component counts and size in short-range wireless designs operating in the ISM bands. But work still needs to be done on the antenna front. In most ISM designs, ...

The lower the frequency of radio transmission, the more antenna that will be needed in general. [OM0ET] wanted to work the 80M to 20M ham bands and decided to turn to a frame antenna. You can see the ...