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All You Wanted To Know About Cell Phone Antennas |
| Date Added: March 22, 2010 05:49:36 AM |
| Author: prz21 |
| Category: Blogs: Computer |
| An antenna (or aerial) is a transducer for receiving or transmitting electromagnetic waves. GSM antennas (GSM stands for Global System for Mobile Communication) are manufactured in 2 types: directional and omnidirectional ones, and are designed to be used in places where there is no connection to the mobile operator. The application of high gain cellular antennas allows to improve the communication quality and the speed of data transfer in GPRS and EDGE modes. In addition to improved performance and the possibility to use the mobile communication beyond the covering of the mobile operator, cell phone antennas are known to reduce the backward radiation to the user's head. It is significant, as the specific absorption rates (SAR) are brought down to the minimum and the efficiency of the antenna is increased. Thus, the usage of cell antennas provides excellent performance and high level of health protection. The function of cell antennas is to convert electrical power between a circuit and the air, this is why the performance of the gadget depends on its radiation and input parameters. Selecting an antenna is an important move, so we advise to talk to professionals. Specialists in the firm where you are going to buy the antenna will help you in making the right choice. But note a number of important parameters while selecting a cell phone antenna: - Electric power should be supplied to the antenna without being reflected back to the circuit. It implies that the feeding point supplies the electric power, but does not take it back; - The electric power transferred to the antenna is transformed into radio waves; - If there are any problems with the impedance, power should not be supplied to the antenna; - Take into account that in case the antenna is made of high-loss materials, such as dielectrics and conductors, the supplied electric power will be lost because of transformation into the heat. As far as you understand, high gain cell phone antennas represent a wonderful choice in case you need a stable communication and high speed of data interchange. Furthermore, the usage of cellular antennas decreased the rate of electromagnetic wave power absorption and in such a way tells positively upon your health. |
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