首页>
外国专利>
Wireless mobile telecommunications system, radio base station for use with it, and process of transmitting signals from a radio base station for use in a cellular telecommunications network
Wireless mobile telecommunications system, radio base station for use with it, and process of transmitting signals from a radio base station for use in a cellular telecommunications network
展开▼
机译:无线移动电信系统,与其一起使用的无线电基站以及从用于蜂窝电信网络的无线电基站发送信号的过程
展开▼
页面导航
摘要
著录项
相似文献
摘要
"WIRELESS MOBILE TELECOMMUNICATIONS SYSTEM, RADIO BASE STATION FOR USE WITH THE SAME, AND, SIGNAL TRANSMISSION PROCESS FROM A RADIO BASE STATION FOR USE ON A TELECOMMUNICATIONS NETWORK". It is a radio base station with efficient use of energy for use in closed environments that is used with wireless cellular telecommunications systems. a small unit volume construction is achieved by reducing the level of energy dissipation, and subsequently, the dimensions of the heat sink required for heat dissipation. In a preferred embodiment of the present invention, a plurality of transmitter signals are combined in a hybrid combining device for generating a pair of output signals. A first output signal is transmitted through a dipole antenna resulting in a vertical polarization and a second output signal is transmitted through a horizontal antenna producing a horizontal polarization. In addition, a 90 ° phase shift is introduced between the signals prior to transmission. The resulting simultaneous transmission of the perpendicularly oriented signals provides a field with substantially circular polarization in the coverage area. The energy dissipation is reduced by transmitting the signal with horizontal polarization as it is converted into useful energy that would otherwise be dissipated in a load resistor.
展开▼