What is a wireless antenna?

The antennas are clear to everyone. We used to build antennas on the roof to receive TV signals. However, with the development of the times, we have seldom seen strange TV antennas, instead of Various wireless antennas. What is a wireless antenna? Of course it is an antenna related to wireless signals.

What is a wireless antenna? Before answering this question, let's take a look at the basic antenna parameters.

The antennas of wireless devices have a certain distance. When the distance exceeds this limit, we need to use these external antennas to enhance the wireless signal and achieve the purpose of extending the transmission distance. Two concepts are involved:

1. Frequency Range

It refers to the frequency band used by the antenna. This parameter determines which wireless device is applicable. For example, an 802.11a standard wireless device requires an antenna with a frequency range of 5 GHz to match. Therefore, you must identify the corresponding product when purchasing an antenna.

2. Increase Value

This parameter indicates the power magnification of the antenna. A larger value indicates a greater magnification of the signal. That is to say, the higher the gain value, the better the transmission quality.

Now let's introduce what a wireless antenna is. Wireless antennas can be divided into many types. Let's take a look at the indoor wireless antenna.

Category

There are many types of wireless antennas, but there are two common ones. One is indoor antenna, which is convenient and flexible. The disadvantage is low gain and short transmission distance. The other is outdoor antenna. There are many types of outdoor antennas, one is a pot-like oriented antenna and the other is a rod-like omnidirectional antenna. The advantage of the outdoor antenna is that the distance is far and it is suitable for long-distance transmission.

Indoor wireless antenna

1. Omnidirectional Antenna

The indoor omnidirectional antenna is suitable for devices such as wireless routers and APs that require extensive coverage of signals. It can evenly distribute signals in a 360-degree comprehensive area around the center and is suitable for devices with close link points, if the distribution angle is large and the number is large.

Omnidirectional Antenna

2. oriented Antenna

The indoor oriented antenna is suitable for indoor use. It has the strongest energy aggregation capability and excellent signal direction. When using it, it should make its direction and the angle and orientation of the receiving device quite concentrated.

Targeted Antenna