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    • 10. 发明授权
    • Radio frequency and microwave module for simultaneously transmitting data and audio signal
    • 射频和微波模块,用于同时传输数据和音频信号
    • US06208843B1
    • 2001-03-27
    • US09324849
    • 1999-06-03
    • Yu-Liang HuangTe-Yi ChuDer Fen Chu
    • Yu-Liang HuangTe-Yi ChuDer Fen Chu
    • H04B140
    • G08C17/02H04B1/406
    • A radio frequency and microwave module for simultaneously transmitting data and audio signal comprises a transmitting unit and a receiving unit. The transmitting unit has two pre-amplifier circuit two voltage-controlled oscillators (VCO), a phase-locked loop (PLL), two low pass filters (LPF) , two amplifiers, a power combiner, a ceramic filter and a transmitting antenna. The receiving unit has a receiving antenna, a ceramic filter, a first low noise amplifier (LNA), a first mixer, an amplifier, a third VCO, a PLL, a low-pass filter, a channel filter, an IF amplifier, a phase shifter, a second mixer, a second low noise amplifier (LNA), a filtering circuit and an operational amplifier. The inventive module can be used for simultaneously transmitting data and audio signal, and the frequency response of the high frequency and low frequency component of the audio signal can be adjusted.
    • 用于同时发送数据和音频信号的射频和微波模块包括发送单元和接收单元。 发射单元具有两个前置放大器电路两个压控振荡器(VCO),锁相环(PLL),两个低通滤波器(LPF),两个放大器,功率组合器,陶瓷滤波器和发射天线。 接收单元具有接收天线,陶瓷滤波器,第一低噪声放大器(LNA),第一混频器,放大器,第三VCO,PLL,低通滤波器,信道滤波器,IF放大器, 移相器,第二混频器,第二低噪声放大器(LNA),滤波电路和运算放大器。 本发明的模块可以用于同时发送数据和音频信号,并且可以调整音频信号的高频和低频分量的频率响应。