POWER AMPLIFICATION DEVICE AND TELEVISION SIGNAL TRANSMISSION SYSTEM

    公开(公告)号:US20180145646A1

    公开(公告)日:2018-05-24

    申请号:US15572876

    申请日:2015-06-08

    申请人: NEC CORPORATION

    发明人: Takuya TANIMOTO

    摘要: A power amplification device capable of detaching an element relating to the power amplification of an RF signal from an element relating to the combining of RF signals. The amplifying unit 1 is provided with a plurality of groups of amplifier circuits 2 that amplifies the power of a RF signal and the plurality of groups of amplifier circuits each includes a predetermined number of the amplifier circuits 2. A combining unit 5 includes a first combiner 7 and a second combiner 8. The first combiner 7 is provided in association with the group of the amplifier circuits 2, combines RF signals output from the amplifier circuits 2 belonging to the corresponding group, and outputs the RF signal after combining. The second combiner 8 combines the RF signals output from each first combiner 7 and outputs the RF signal after combining. Each first combiner 7 is a combiner usable for an RF signal in a specific frequency band. The amplifying unit 1 is attachable to and detachable from the combining unit 5.

    COMPOSITE POWER AMPLIFIER
    7.
    发明申请

    公开(公告)号:US20180102744A1

    公开(公告)日:2018-04-12

    申请号:US15568891

    申请日:2015-05-12

    发明人: Richard HELLBERG

    摘要: A composite power amplifier for amplification of an input signal into an output signal is disclosed. The composite power amplifier comprises an input port for receiving the input signal, and an output port for providing the output signal. Furthermore, the composite power amplifier comprises a first set of sub-amplifiers, comprising at least two sub-amplifiers, wherein the at least two sub-amplifiers are arranged along a taper of a first transmission line, wherein the first transmission line is connected to the first set of sub-amplifiers and the output port. Moreover, the composite power amplifier comprises a second set of sub-amplifiers, comprising at least two sub-amplifiers, wherein the at least two sub-amplifiers are arranged along a taper of a second transmission line, wherein the second transmission line is connected to the second set of sub-amplifiers and the output port.