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发明授权
CN101610067B 混频器 失效 - 权利终止

混频器
摘要：
一种混频器，其包含有混频级和缓冲放大滤波级两级级联，其中混频级包括混频主体电路，所述混频主体电路包括：第一电流源、第二电流源、第一射频输入NMOS管、第二射频输入NMOS管、第三射频输入NMOS管、第四射频输入NMOS管和第一开关级NMOS管、第二开关级NMOS管、第三开关级NMOS管、第四开关级NMOS管；正向的射频信号接第一射频输入NMOS管、第二射频输入NMOS管的栅极，反相的射频信号接第三射频输入NMOS管、第四射频输入NMOS管的栅极。本发明的混频器具有高线性度和低功耗的特点。
摘要（英）：

The invention relates to a frequency mixer comprising two-level cascades: a frequency mixing level and a buffer amplification filtering level, wherein the frequency mixing level comprises a frequency mixing main body circuit; the frequency mixing main body circuit comprises a first current source, a second current source, a first radio-frequency input NMOS pipe, a second radio-frequency input NMOS pipe, a third radio-frequency input NMOS pipe, a fourth radio-frequency input NMOS pipe, a first switch level NMOS pipe, a second switch level NMOS pipe, a third switch level NMOS pipe and a fourth switch level NMOS pipe; a positive radio-frequency signal is connected with grids of the first radio-frequency input NMOS pipe and the second radio-frequency input NMOS pipe, and a reverse radio-frequency signal is connected with grids of the third radio-frequency input NMOS pipe and the fourth radio-frequency input NMOS pipe. The frequency mixer has high linearity and low power consumption.

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