Antenna Category:

① Press the nature of the work can be divided into transmit and receive antennas.
② use can be divided into communication antennas, radio antennas, TV antennas, radar antennas.
③ Press the operating wavelength can be divided into long-wave antennas, long-wave antenna, AM antenna, shortwave antenna, FM antenna, microwave antenna.
④ form of the structure and working principle can be divided into wire antennas and antennas, etc.
Characteristic parameters are described antenna pattern, directivity, gain, input impedance, radiation efficiency, polarization and bandwidth

According to the dimension of the antenna can be divided into two types:

One-dimensional and two-dimensional antenna antenna
One-dimensional antenna composed by a number of wires, such as wires or lines, or some form used on smart phones, as appears on the TV using the cable before the old rabbit ears. Monopole antenna and dual-stage are two basic one-dimensional antenna.
Two-dimensional antenna diverse, flake (a square metal), an array (two-dimensional model of a bunch of good tissue slices), there are trumpet-shaped, dish.

Antenna according to different occasions, can be divided into:

Handheld station antenna, car antenna, antenna base three categories.
Hand-held units for personal use handheld walkie-talkie antenna is an antenna, a common rubber antenna and whip antenna into two categories.
Car antenna is the original design communications antenna mounted on the vehicle, the most common application is the most common suction car antenna structure also has shortened, one-quarter wavelength, central plus sensitized, five eighths wavelength, dual two-thirds a wavelength in the form of an antenna.
Base station antenna has a very crucial role in the communication system, especially as the communications hub of communication stations.
Common base station antenna has a high gain antenna fiberglass, Victoria array antenna (eight ring array antenna), a directional antenna.