| Antenna (or aerial) represents a transducer for receiving or transmitting electromagnetic waves. GSM antennas (GSM refers to Global System for Mobile Communication) are created in 2 types: directional and omnidirectional ones, and are designated to be applied in the spots where there is no connection to the mobile operator.
The use of high gain cell antennas permits to improve the quality of connection and the speed of data transmission in GPRS and EDGE modes. In addition to better efficiency and the chance to use the mobile communication beyond the covering, cellular antennas are famous to bring down the backward radiation towards the user's head. It's significant, since the electromagnetic wave power absorption is minimized and the performance of the antenna is increased. This way, the use of cellular antennas ensures excellent performance and high level of health protection.
The designation of GSM antennas is to convert power between a circuit and the air, that is why the efficiency of the device depends on its radiation and input parameters. Selecting an antenna is an important step, so we recommend to talk to the professionals. Specialists in the firm you are buying the antenna from will be of great help in making the right choice. But still, take into consideration some important factors while selecting a GSM antenna:
- Power is supplied to the antenna with no being reflected back to the circuit. It implies that the feeding point should supply the power, but not take it back;
- The electric power transmitted to the antenna is converted into radio waves;
- If there are any troubles with the impedance, power shouldn't be supplied to the antenna;
- Note that in case the antenna is made of high loss materials, such as dielectrics and conductors, the supplied electric power will be transformed into the heat and lost.
As far as you see, high gain cell phone antennas are a wonderful choice in case you need a stable connection and high-speed data interchange. What is more, the use of cellular antennas bring down the rate of electromagnetic wave power absorption and in such a way tells positively on your health. |
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