公开(公告)号：US20070224964A1

公开(公告)日：2007-09-27

申请号：US11617583

申请日：2006-12-28

申请人： Yong IL KWON ,  Myeung Su KIM ,  Joon Hyung LIM ,  Tah Joon PARK ,  Jin Ho KO ,  Sang Hyun CHO ,  Jong Moon KIM

发明人： Yong IL KWON ,  Myeung Su KIM ,  Joon Hyung LIM ,  Tah Joon PARK ,  Jin Ho KO ,  Sang Hyun CHO ,  Jong Moon KIM

IPC分类号： H04B1/26

CPC分类号： H04B1/26 ,  H03D7/165

摘要： A sub-harmonic frequency conversion device includes: a voltage controlled oscillator for generating first to eighth oscillation frequency (LO) signals having a constant phase difference; a first mixer for performing a switching operation to mix the first to fourth LO signals having a phase difference of 90° and input signals, and outputting first IF signals; and a second mixer for performing a switching operation to mix the fifth to eighth LO signals having a phase difference of 90° and the input signals, and outputting second IF signals. Accordingly, the sub-harmonic frequency conversion device can use the low-frequency LO signal, and the power consumption can be reduced. In addition, because the mixers are implemented using a symmetric structure of the MOS transistors, the circuit configuration can be easily implemented.

摘要翻译： 子谐波变频装置包括：压控振荡器，用于产生具有恒定相位差的第一至第八振荡频率（LO）信号; 第一混频器，用于执行切换操作以混合具有90°相位差的第一至第四LO信号和输入信号，并输出第一IF信号; 以及第二混频器，用于执行开关操作以混合具有90°相位差的第五至第八LO信号和输入信号，并输出第二IF信号。 因此，副谐波变频装置可以使用低频LO信号，能够降低功耗。 此外，由于使用MOS晶体管的对称结构来实现混频器，因此可以容易地实现电路配置。