| Antenna (or aerial) represents a convertor for receiving or transferring electromagnetic waves. GSM antennas (GSM refers to Global System for Mobile Communication) are manufactured in 2 types: directional and omnidirectional antennas, and are designed to be applied in the spots where the connection to the mobile operator can't be established.
The usage of high gain cell phone antennas allows to increase the quality of connection and speed up data transmission through Enhanced Data rates for GSM Evolution and General Packet Radio Service. Apart from better efficiency and the opportunity to use the mobile communication out of the covering of the mobile operator, cellular antennas are famous to bring down the backward radiation to the user. It's significant, since the rate of electromagnetic wave power absorption is decreased to the minimum and the effectiveness of the antenna is increased. In such a way, the application of cellular antennas ensures high level of effectiveness and health protection.
The function of GSM antennas is to convert power between a circuit and the air, that's the reason why the performance of the device depends on its input and radiation parameters. Selecting an antenna is an important step, so we recommend to talk to the professionals. Experts in the company you're acquiring the antenna from will be of great help in making the right choice. But still, do not forget some significant factors when choosing a GSM antenna:
- Power should be supplied to the antenna with no backward reflection to the circuit. It signifies that the feeding point supplies the electric power, but doesn't take it back;
- The electric power transferred to the antenna is converted into radio waves;
- In case there are some problems with the impedance, the electric power should not be supplied to the antenna;
- Note that if the antenna is made of high loss materials, like dielectrics and conductors, the supplied electric power will be lost due to transformation into the heat.
As far as you see, high gain cell phone antennas are a perfect choice in case you need a stable connection and high-speed data transfer. What is more, the application of cell antennas decreased the level of electromagnetic wave power absorption and in this way tells positively on your health. |
