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    FIXED INTERMEDIATE FREQUENCY SIGNAL WITH TUNED LOW FREQUENCY LOCAL OSCILLATOR REFERENCE FOR LINEAR TRANSMITTER
    2.
    发明公开
    FIXED INTERMEDIATE FREQUENCY SIGNAL WITH TUNED LOW FREQUENCY LOCAL OSCILLATOR REFERENCE FOR LINEAR TRANSMITTER 审中-公开
    带调谐低频局部振荡器的固定中频信号参考线性发射机

    公开(公告)号：EP3198730A1

    公开(公告)日：2017-08-02

    申请号：EP15844696.3

    申请日：2015-09-22

    申请人： Hughes Network Systems, LLC

    发明人： JACKSON, Thomas ,  JOSHI, Rajesh ,  DAUBERMAN, Michael

    IPC分类号： H04B1/04

    CPC分类号： H04W72/0453 ,  H03F3/24 ,  H04B1/0483 ,  H04B1/16 ,  H04B7/15 ,  H04B7/185 ,  H04B7/18517 ,  H04B2001/0408 ,  H04W72/00

    摘要： A linear technology radio for use in satellite communication is provided. The linear technology radio includes: a pre-amplifier to amplify a Local Oscillator (LO) reference signal; an intermediate frequency (IF) amplifier to amplify an IF signal; a frequency multiplier to multiply the LO reference signal; and a mixer to mix the amplified LO reference signal and the amplified IF signal to generate a Radio Frequency (RF) signal, wherein a frequency band of the IF signal is fixed, a frequency band of the LO reference signal is variable, and a highest frequency of the LO reference signal frequency band is less than a lowest frequency of the IF signal frequency band.

    摘要翻译： 提供用于卫星通信的线性技术无线电。 线性技术无线电包括：用于放大本地振荡器（LO）参考信号的前置放大器; 中频（IF）放大器，用于放大IF信号; 倍频器，用于将LO参考信号相乘; 以及混频器，用于混合放大的LO参考信号和放大的IF信号以生成射频（RF）信号，其中IF信号的频带是固定的，LO参考信号的频带是可变的，并且最高 LO参考信号频带的频率小于IF信号频带的最低频率。

    OUTDOOR DIGITAL MODULATOR SYSTEM FOR USE WITH A LINEAR RADIO, AND A METHOD THEREOF
    9.
    发明授权
    OUTDOOR DIGITAL MODULATOR SYSTEM FOR USE WITH A LINEAR RADIO, AND A METHOD THEREOF 有权

    公开(公告)号：EP3241287B1

    公开(公告)日：2018-11-21

    申请号：EP15828804.3

    申请日：2015-12-29

    申请人： Hughes Network Systems, LLC

    发明人： JACKSON, Thomas ,  EAPEN, George ,  LACASSE, Paul

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18528 ,  H04B7/18517 ,  H04B7/18582 ,  H04L7/0331

    摘要： A communication system, an apparatus and a method for communicating with a radio disposed in an outdoor unit are provided. The apparatus including: a de-multiplexor configured to separate a multiplexed signal received on an inter-facility link (IFL) into a first signal; a demodulator configured to demodulate the first signal based-on a first modulator control information to obtain data; a modulator configured to modulate a portion of the data based-on a second modulator control information to generate a second signal; and an amplifier configured to amplify a transmission signal prior to transmission of the transmission signal with an antenna, wherein the transmission signal is based on the second signal, the second modulator control information is received by the de-multiplexor and the second modulator control information controls the modulation scheme used by the modulator.