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    • 2. 发明公开
    • Transmitting device of wireless machine and high frequency power amplifying device used therein
    • 为在高频功率放大器装置中使用的无线设备的传输设备
    • EP0762632A1
    • 1997-03-12
    • EP96113886.4
    • 1996-08-30
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Ikeda, HikaruFuse, NobuoKosugi, HiroakiYagita, HidekiIshida, KaoruHaruki, Hiroshi
    • H03F3/21
    • H03F3/211H03F3/604
    • The output of a digital modulator is put into a power amplifying device, is distributed into n pieces in an n-power divider in the power amplifier, passes, through n input phase shifters differing individually in the phase change amount, is amplified by n power amplifiers, passes through n output phase shifters to match the phase of n signals, is combined in an n-power combiner, and is issued from an output terminal to a phase shifter, and the output of the phase shifter is issued to a transmission antenna. Herein, the phase value of the phase shifter is determined so as to extend the region of the output load impedance for satisfying the specific value of unwanted radiation, and so that the output load impedance range of the load impedance of the power amplifier may be optimize to the impedance change range of the trans missionantenna, thereby eliminating the isolator and presenting a transmitting device of a portable wireless system realizing smaller size, higher performance, and lower cost of portable wireless system.
    • 数字调制器的输出被投入的功率放大装置中,被分配到n个在所述功率放大器的n分配器,通行证,通过n个输入相位器的相位变化量独立不同,是由N个功率放大 放大器,通过n个输出相位器以匹配n个信号的相位,在n合成器的组合,并且从在输出端子到移相器发出的,和移相器的输出被发送到一个发送天线 , 在,所述移相器的相位值确定的开采,以延长的输出负载阻抗的区域为满足不想要的辐射的特定值,所以没有功率放大器的负载阻抗的输出负载阻抗的范围可以是优化 到反式missionantenna,从而消除了隔离器和呈现的便携式无线系统实现更小的尺寸,更高的性能,和便携式无线系统的成本较低的发送装置的阻抗变化范围。