GSM antennas and their use

What is a GSM antenna?
An antenna is an electrical device that converts electric currents into radio waves and vice versa. This is an essential part of transmitting or receiving radio frequency (RF) signals from a radio frequency (RF) signal at a given frequency or frequency. The GSM antenna operates at 824-894 MHz, 890-960 MHz, 1710-1880 MHz and 1850-1990 MHz. Antennas can often operate in more than one frequency range. In this case they are often referred to as dual band (2 frequency), tri band (3 frequency) or quad band (4 frequency).

Why do I need an antenna?
The GSM antenna receives or transmits the RF signal – without the radio system not working. Antennas are used in all systems that use wireless devices, such as wireless devices. Car key blowers, garage door entrance systems, RFID tags, baby watches and cell phones.

How does the GSM antenna work?
An antenna is usually used as a metal conductive tape or wire. This allows the passage of electric current, which creates a magnetic current. Depending on the frequency, this creates a wavelength of a certain size. The lower the frequency, the longer the wavelength, and the more GSM signal.

What to look for in an antenna?
The antennas have different shapes and sizes and depend on how they are used. First, however, they are broadcast in two ways. The first is the most common – Omni directional antenna. This allows the 360 ​​° radiation pattern to be transmitted in any direction and receive a circular pattern. Directed antennas give and receive radio frequency signals in a limited direction and point in the general direction of the other radio.

For example, a walkie talkie antenna would be one-way, providing full coverage. A TV antenna mounted on the roof of the house is a Yagi antenna that is directed – towards the power of the TV transmitter. This allows the signal to be sent or received.

How Many Types of GSM Antennas Do You Have?

Once the directional or directed antenna has been determined, there is a generally accepted style on the GSM antenna. They depend on usage.

  • Embedded antennas are used when the antenna is installed.
  • Hole-mounted antennas are used in permanent installations and fit through mounting screws.
  • Magnetic fixation antennas are usually kept only for temporary installations or evaluation kits.
  • Directly connect the antennas directly to the GSM modems or to the back of the GSM terminal. GSM antennas connected to an external or base station often fit the walls and are used in remote locations
  • to install wireless telemetry or alarm devices.
  • Adhesive structure antennas adhere to glass or other non-metallic surfaces.

Source by sbobet

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