公开(公告)号：US20130285715A1

公开(公告)日：2013-10-31

申请号：US13980355

申请日：2012-05-29

申请人： Jianhui Wu ,  Xiao Shi ,  Chao Chen ,  Zhilin Liu ,  Qiang Zhao ,  Junfeng Wen ,  Xudong Wang ,  Chunfeng Bai ,  Qian Tian

发明人： Jianhui Wu ,  Xiao Shi ,  Chao Chen ,  Zhilin Liu ,  Qiang Zhao ,  Junfeng Wen ,  Xudong Wang ,  Chunfeng Bai ,  Qian Tian

IPC分类号： H03H11/04

CPC分类号： H03H11/0466 ,  H03D7/1441 ,  H03D7/1466

摘要： A transconductance-enhancing passive frequency mixer comprises a transconductance amplification stage, a frequency mixing stage, and an output transresistance amplifier. The transconductance amplification stage has a pre-amplification transconductance-enhancing structure, so that the transconductance is greatly enhanced, thereby obtaining the same transconductance value at a lower bias current. A radio-frequency current is modulated by the frequency mixing stage to generate an output mid-frequency current signal. The mid-frequency current signal passes through the transresistance amplifier, to form voltage output, and finally obtain a mid-frequency voltage signal. The transresistance amplifier has a transconductance-enhancing structure, thereby further reducing input impedance, and improving current utilization efficiency and port isolation. The frequency mixer has the characteristics of low power consumption, high conversion gain, good port isolation, and the like.

摘要翻译： 跨导增强型无源混频器包括跨导放大级，频率混频级和输出跨阻放大器。 跨导放大级具有预放大跨导增强结构，使得跨导大大增强，从而在较低偏置电流下获得相同的跨导值。 射频电流由混频级调制以产生输出中频电流信号。 中频电流信号通过跨阻放大器，形成电压输出，最后得到中频电压信号。 跨阻放大器具有跨导增强结构，从而进一步降低输入阻抗，提高电流利用效率和端口隔离。 该混频器具有低功耗，高转换增益，良好的端口隔离等特点。

公开(公告)号：US08933745B2

公开(公告)日：2015-01-13

申请号：US13980355

申请日：2012-05-29

申请人： Jianhui Wu ,  Xiao Shi ,  Chao Chen ,  Zhilin Liu ,  Qiang Zhao ,  Junfeng Wen ,  Xudong Wang ,  Chunfeng Bai ,  Qian Tian

发明人： Jianhui Wu ,  Xiao Shi ,  Chao Chen ,  Zhilin Liu ,  Qiang Zhao ,  Junfeng Wen ,  Xudong Wang ,  Chunfeng Bai ,  Qian Tian

IPC分类号： G06G7/12 ,  H03H11/04 ,  H03D7/14

CPC分类号： H03H11/0466 ,  H03D7/1441 ,  H03D7/1466

摘要： A transconductance-enhancing passive frequency mixer comprises a transconductance amplification stage, a frequency mixing stage, and an output transresistance amplifier. The transconductance amplification stage has a pre-amplification transconductance-enhancing structure, so that the transconductance is greatly enhanced, thereby obtaining the same transconductance value at a lower bias current. A radio-frequency current is modulated by the frequency mixing stage to generate an output mid-frequency current signal. The mid-frequency current signal passes through the transresistance amplifier, to form voltage output, and finally obtain a mid-frequency voltage signal. The transresistance amplifier has a transconductance-enhancing structure, thereby further reducing input impedance, and improving current utilization efficiency and port isolation. The frequency mixer has the characteristics of low power consumption, high conversion gain, good port isolation, and the like.

摘要翻译： 跨导增强型无源混频器包括跨导放大级，频率混频级和输出跨阻放大器。 跨导放大级具有预放大跨导增强结构，使得跨导大大增强，从而在较低偏置电流下获得相同的跨导值。 射频电流由混频级调制以产生输出中频电流信号。 中频电流信号通过跨阻放大器，形成电压输出，最后得到中频电压信号。 跨阻放大器具有跨导增强结构，从而进一步降低输入阻抗，提高电流利用效率和端口隔离。 该混频器具有低功耗，高转换增益，良好的端口隔离等特点。