Antenna story

  • Source: eahison
  • Date:04/26/2019

As is well known, antennas are used by base stations and mobile phones to transmit signals.

Antenna, originally meant to be a tentacle. The tentacles are the two long filaments on the top of the insect's head. Don't underestimate such inconspicuous things. The insects are the various chemical signals sent by these tentacles to convey various social information.


Similarly, in the human world, wireless communication also transmits information through antennas, but only transmits electromagnetic waves carrying useful information. The following figure is an example of communication between a mobile phone and a base station.


So what do the actual antennas look like? Due to the different uses, the shape of the antenna is too much, from the pot that receives the TV signal (the parabolic antenna) to the antenna hidden in the mobile phone, which has different shapes due to different functions.

When it comes to antennas, the most common thing most people see is the antenna of a wireless router at home.


It is this stick-like antenna that allows us to enjoy the same speed as flying.

Listening to the radio was a very fashionable thing a long time ago. The radio has a long antenna that can be stretched one by one. This antenna is exactly the same as the router antenna. It was called a whip antenna, or a telescopic antenna or a pull-rod antenna.

In prehistoric times, the highest building in each city must be the TV tower. The TV also receives signals from the TV tower through the antenna. The two antennae-like whip antennas on the top form a lot of antennas. The initial impression. Both the shape and the effect are completely similar to the insect's tentacles.


In addition, there are a variety of different types of antennas, which can be given different types according to different classification methods.

  1. According to the nature of work, it can be divided into transmitting antenna and receiving antenna.
  2. According to the use can be divided into communication antennas, broadcast antennas, TV antennas, radar antennas and so on.
  3. According to the directionality, it can be divided into an omnidirectional antenna and a directional antenna.
  4. According to the working wavelength, it can be divided into ultra long wave antenna, long wave antenna, medium wave antenna, short wave antenna, ultra short wave antenna, microwave antenna and so on.
  5. According to the structure and working principle can be divided into line antennas and surface antennas.
  6. Divided by dimension can be divided into two types: one-dimensional antenna and two-dimensional antenna.
  7. The antenna can be divided into three categories according to the use of the occasion: handheld antenna, vehicle antenna, base antenna.


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