Types of Wifi / Modem Network Antennas and Their Functions
Types of network antennas and their functions. Antenna is a tool used to spread and receive electronic waves. Generally, this tool is used to capture and transmit WiFi signals that are far away, for example between buildings that allow smartphones to not be able to pick up the signal.
Network antennas are divided into several types. Generally classified into two types namely directional and omnidirectional. An omni directional antenna is an antenna that is polarized in all directions. This is different from directional which is only one way.
5 Types of Network Antennas and Their Functions
There are several types of network antennas that are often used in everyday environments. For those who want to know, here are the kinds:
Omni Antenna
Network antennas are used as transmitter modes because of their wide range. This is because the antenna has 3 to 13 dBi. This antenna is an antenna that is often used for hotspots or WiFi RT RW which has two frequencies of 5.8 Ghz and 2.4 Ghz. Its characteristics are as follows:
- The shape of the antenna is like a stick
- Has a polarization in all directions or 360 degrees
- Broad coverage but short reach
- Enter the PTMP (Point to Multi Point) type
Sectoral Antenna
Sectoral antennas are similar to omni antennas. The only difference is the direction of the beam produced. If the omni antenna has a 360 degree polarization, it is different from a sectoral antenna which is only 180 degrees. This network antenna has a gain of 10 to 19 dBi. The criteria are as follows:
- Shaped like a tube
- Polarization only in certain directions, can be 45 degrees and can also be 180 degrees
- Enter the PTP (Potint to Point) or PTMP type
Grid Antenna
This type of network antenna is used for long-distance clients because it uses PTP technology or what is called Point to Point. Network transmitters and receivers both use grid antennas. The resulting frequency here is 2.5 Ghjz to 5.8 Ghz which has a gain of 27 dBi. Its characteristics are as follows:
- The antenna has a shape like a net
- Polarization in one predefined direction
- Usually deployed with the same antenna, one for the transmitter and one for the receiver
- Enter the PTP network type
Yagi Antenna
This antenna consists of three parts, namely driven or cable supply points, reflectors or reflectors and also directors. This antenna has a gain of 16 dBi. This type of antenna is suitable for client mode that is directly directed to the transmitter, such as omni and sectoral antennas.
This antenna has two frequencies, namely 5.8 GHz and 2.4 GHz. The following are the characteristics of a yagi antenna:
- The antennae have a shape similar to a fishbone
- Polarization in a certain direction or only one predefined direction
- Enter the PTP network type
Parabolic Antenna
This antenna is similar to a grid antenna. But the network is still focused because it is between 18-28 dBi. From a distance range, this network antenna is indeed superior to the grid antenna.
This antenna is generally widely applied to point-to-point network types that have long distances. Following are the characteristics of the network antenna:
- The shape of the antenna is like a net
- Polarization only in one predetermined direction
- Generally applied to network transmitters and receivers
- It belongs to the PTP network type
You should know the various network antennas so you don’t get confused between them. This network antenna is used to process the arrangement of computer networks. Users can also adjust to their individual needs.
