| Antenna is a transducer for getting or transmitting electromagnetic waves. GSM antennas are produced in 2 types: omnidirectional and directional ones, and are designed to be used in the spots where the connection with the mobile operator can't be established.
The application of high gain cell phone antennas permits to augment the quality of connection and speed up data transmission in GPRS and EDGE modes. Apart from better performance and the possibility to use the mobile communication beyond the covering of the mobile operator, cell phone antennas are famous to bring down the radiation towards the user's head. It's very important, since the specific absorption rates, known as SAR, are brought down to the minimum and the effectiveness of the antenna is enhanced. Thus, the application of cell phone antennas provides excellent performance and high level of health protection.
The designation of cell antennas is to convert power between a circuit and the air, that's the reason why the effectiveness of the gadget depends on its input and radiation parameters. Selecting an antenna is an essential move, so we would recommend to talk to professionals. Specialists of the firm where you're planning to acquire the antenna will be of great help in making the right choice. But nevertheless, take into account a number of significant factors when choosing a GSM antenna:
- Electric power should be supplied to the antenna with no being reflected back to the circuit. It means that the feeding point should supply the electric power, but not take it back;
- The power transmitted to the antenna is transformed into radio waves;
- If there are any problems with the impedance, the electric power shouldn't be supplied to the antenna;
- Do not forget that in case the antenna is made of high loss materials, like conductors and dielectrics, the supplied electric power will be transformed into the heat and lost.
As you see, high gain GSM antennas represent a great choice if you need a stable communication and high-speed data transmission. Besides, the use of cellular antennas reduces the rate of electromagnetic wave power absorption and in this way tells positively on your health. |
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