What is the helix antenna?
Helix or Helical antenna is a type of antenna that uses a conductive wound in a spiral helix mounted over the ground plane. The helix antenna is a type of directional antenna - an electromagnetic field usually rotates around the spiral axis either clockwise or counterclockwise. Simple and practical Helix antennas were basically designed to replace much larger antennas while maintaining the same bandwidth characteristics. The helix antenna is most often used with hand -held satellite communication devices such as phones, radios and global positioning systems. Its ability to lock to the largest number of satellite signals at the same time provides more accurate intake when traveling in vehicles, and it will probably be pre-installed in future car models.
Helix antenna is able to operate in one of the two main modes: Broadside or Normal, Mode And Axial or End-Fire, Mode. A wide -mode edible antennas are generally usedThey are in situations where a smaller antenna is an important operating factor. These antennas were first used with civic groups in the US and Australia in the late 1960s and today are widely used as typical FM antennas in cars.
Axial regime spiral antennas are more suitable for situations where it is not easy to obtain a solid orientation of the transmitter and receiver. This type of helix antenna is most often used in satellite communication devices such as phones and global position systems. When a spiral of axial regime is used, both the broadcasting and receiving antennas for optimal results must have the same hand.
Ingometry is defined as a smooth three -dimensional curve with a tangent line that maintains the same constant angle with a fixed axis. A good example of geometric helix is the spool of the spring. Helixes can be correct or left. Handedness of Helix is determined by the view of the podéL Axles of the helix and turning clockwise. If Helix seems to move towards the observer, it is the right hand, but if it seems to move away, then it is left -handed. A common hardware screw is an example of a right spiral.