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DIY Small-sized original HF antenna
DIY Small-sized original HF antenna

DIY Small-sized original HF antenna


Price 11 USD   Заказать

The radio communication at short waves importance placed antennas. Full-size HF antenna requires to place a lot of space, especially the antenna to a range of 160 m and below. An original design of a small-sized magnetic antenna on any of the HF bands.

The antenna consists of flat spirals that I can be implemented as of the wires or tapes, and through the printed circuit. The antenna on the range of 160 meters will measure 30h30h5 see. No ma logabaritnaya antenna even made by EH technology and closely compares with it in size.

Depending on the distances between the conductors, the antenna may have the input impedance of 50-300 ohms, i.e., radiation resistance is at Full-size design and therefore little antennka shows similar radiating capacity.

the radiation pattern of the antenna is the same as that of a half-wave dipole. The magnetic field is concentrated at the ends of the antenna, and between the electrical conductors. In fact, radiation is only a magnetic field, and therefore purely magnetic antenna.

The secret megaeffektivnosti design simple. The antenna is a decelerating system with abnormal deceleration coefficient, reaching up to 100 and even more. Accordingly, in the same amount of time can reduce the length of the radiating wire. Why antenna has not been spread is difficult to say. Perhaps because we are used to drag new items from the West, while not noticing own revolutionary development.

HF due time has not yet passed. As we know history is moving in a circle, and we just can not find "bottom " protracted crisis in the world economy. As to the bottom end of the light is not turned, and the Internet.

On request sent DIY patent.

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