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    • 1. 发明申请
    • DISTRIBUTED ANTENNA SYSTEMS
    • 分布式天线系统
    • WO0239541A3
    • 2003-05-01
    • PCT/US0151305
    • 2001-11-01
    • ANDREW CORP
    • THOMAS MIKEJUDD MANO DMONTE THOMAS DJACKSON DONALD GMACA GREGORY A
    • H01Q1/24H01Q3/28H01Q21/08H01Q23/00H01Q21/00
    • H01Q23/00H01Q1/246H01Q3/28H01Q21/08
    • A distributed antenna device includes a plurality of transmit antenna elements (12), a plurality of receive antenna elements (30) and a plurality of amplifiers (14, 140). One of the amplifiers (14) is a relatively low power, linear amplifier operatively coupled with each of the transmit antenna elements (12) and mounted closely adjacent to the associated transmit antenna element (12), such that no appreciable power loss occurs between the power amplifier (14) and the associated antenna element (12). At least one of the amplifiers (140) is a low noise amplifier and is built into the distributed antenna device for receiving and amplifying signals from at least one of the receive antenna device for receiving and amplifying signals from at least one of the receive antenna elements (30).
    • 分布式天线装置包括多个发射天线元件(12),多个接收天线元件(30)和多个放大器(14,140)。 放大器(14)中的一个是与每个发射天线元件(12)可操作地耦合并相对于相关联的发射天线元件(12)紧密相邻安装的相对较低功率的线性放大器,使得不存在明显的功率损耗 功率放大器(14)和相关联的天线元件(12)。 放大器(140)中的至少一个是低噪声放大器,并且内置于分布式天线装置中,用于接收和放大来自接收天线装置中的至少一个的信号,用于接收和放大来自至少一个接收天线元件的信号 (30)。