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All You Wanted To Know About Cell Antennas |
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| Date Added: March 02, 2010 01:21:24 PM | |
| Author: prz21 | |
| Category: Computers & Internet: Web Directories: Niche Directories: Internet | |
Antenna (or aerial) is a convertor for transferring or getting electromagnetic waves. GSM antennas (GSM stands for Global System for Mobile Communication) are created in two types: omnidirectional and directional antennas, and are designated to be used in spots where the connection with the mobile operator cannot be established. The application of high gain cell antennas allows to improve the quality of connection and speed up data transfer in GPRS and EDGE modes. In addition to better efficiency and the possibility to use the mobile communication beyond the covering of the mobile operator, cell phone antennas are famous to decrease the backward radiation towards the user's head. It is significant, as the specific absorption rates, or SAR, are minimized and the efficiency of the antenna is increased. Thus, the usage of cell antennas ensures excellent performance and high level of health protection. The purpose of cellular antennas is to convert power between a circuit and the air, that is why the performance of the gadget depends on its radiation and input parameters. Choosing an antenna is an important step, so we recommend to consult professionals. Experts in the company where you're planning to acquire the antenna will help you to make the right choice. But still, note a number of important parameters while choosing a cell phone antenna: - Electric power is supplied to the antenna with no backward reflection to the circuit. It signifies that the feeding point should supply the power, but not take it back; - The electric power transmitted to the antenna is transformed into radio waves; - In case of some problems with the impedance, the electric power should not be supplied to the antenna; - Remember 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 far as you understand, high gain cell antennas are a perfect choice in case you need a stable connection 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. |
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