What is the spiral antenna?
The spiral antenna is used to receive or transmit a wide range of electromagnetic signals. They can be used by themselves or as part of the field. Telecommunication equipment often uses these types of antennas.
The simplest version of the spiral antenna consists of a tight coil that orbits clockwise or counterclockwise. The coils can be closed into a solid metal accessory. The antenna can be relatively flat, or may consist of a spiral metal ribbon, which can be as deep as the average circle in the spiral. The more complex versions of the spiral antennas are designed from two additional spirals, one inside the other that is wound in the opposite directions.
In order to achieve the best results, there must be a spiral form and an empty space inside the same ratio. Depending on the composition and size of the coil, the spiral antenna is able to pick up a wide range of electromagnetic waves. It is considered a wide range of antenna because the length of the wavesY The shortest waves that can pick up is generally nine or more times less than the length of the longest wave in its range. This makes it an ideal communication antenna where many frequencies are monitored at a time.
It is possible to receive and transmit electromagnetic information with a spiral antenna. All spiral antennas are able to receive linear signals of any polarization if these signals fall within their frequency range. The waves that emit the spiral antenna have a circular polarization, which means that the waves of spirals are on each other, similar to the spring wire. It is not possible for all types of antennas to pick up the electromagnetic waves of this shape, even if they can pick them up other spiral antennas. In order to pick up the signal with a circular polarization, the spiral antenna must have a supporting polarization of the antenna.
one spiral antenna can be used separately or can be a few of itCH connected to the field. Two additional antennas are often used to receive signals of opposite circular polarization. The use of multiple antennas also increases profit, allowing antennas to pick up signals that are weak.