| Antenna represents a transducer for transmitting or getting electromagnetic waves. GSM antennas are manufactured in two types: directional and omnidirectional ones, and are designed to be applied in the places where the connection with the mobile operator can't be established.
The usage of high gain cell phone antennas allows to increase the connection quality and the speed of data transfer through GPRS (General Packet Radio Service) and EDGE (Enhanced Data rates for GSM Evolution). Apart from better connection and the possibility to apply the mobile communication out of the covering, cellular antennas are famous to bring down the radiation to the user's head. It is essential, as the specific absorption rates, or SAR, are minimized and the performance of the antenna is enhanced. Thus, the application of GSM antennas ensures excellent performance and high level of health protection.
The designation of cell phone antennas is to convert power between a circuit and the air, that's why the effectiveness of the device depends on its input and radiation characteristics. Choosing an antenna is an important step, so we would recommend to talk to the professionals. Specialists in the company where you're going to purchase the antenna will assist in making the right choice. But still, don't forget a number of important parameters while selecting a cellular antenna:
- Electric power should be supplied to the antenna without being reflected back to the circuit. It means that the feeding point supplies the power, but doesn't take it back;
- The electric power transferred to the antenna is converted into radio waves;
- In case of any problems with the impedance, the power shouldn't be supplied to the antenna;
- Take into consideration that in case the antenna is made of high-loss materials, like dielectrics and conductors, the supplied power will be lost owing to transformation into the heat.
So, high gain GSM antennas represent a wonderful choice in case you need a stable communication and high speed of data transfer. What's more, the usage of cell antennas bring down the rate of electromagnetic wave power absorption and in such a way tells positively on your health. |
Article Details
