发明授权
- 专利标题: Return-type current-reuse mixer
- 专利标题(中): 返回型电流再利用混频器
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申请号: US13978864申请日: 2011-08-18
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公开(公告)号: US08766698B2公开(公告)日: 2014-07-01
- 发明人: Jianhui Wu , Chao Chen , Hong Li , Longxing Shi , Zixuan Wang , Jie Sun , Zhiyi Ye , Meng Zhang
- 申请人: Jianhui Wu , Chao Chen , Hong Li , Longxing Shi , Zixuan Wang , Jie Sun , Zhiyi Ye , Meng Zhang
- 申请人地址: CN
- 专利权人: Southeast University
- 当前专利权人: Southeast University
- 当前专利权人地址: CN
- 代理机构: Brooks Kushman P.C.
- 优先权: CN201110004140 20110111
- 国际申请: PCT/CN2011/078565 WO 20110818
- 国际公布: WO2012/094892 WO 20120719
- 主分类号: G06G7/12
- IPC分类号: G06G7/12 ; G06F7/44
摘要:
A return-type current-reuse mixer having a transconductance/amplification stage, a mixing stage, and a high-pass and a low-pass filter network. The transconductance/amplification stage has a current-reuse CMOS topology wherein an input frequency signal is converted into a frequency current, low-frequency components are removed from the frequency current by the high-pass filter network, the frequency current is fed into the mixing stage, modulation occurs in the mixing stage, and then an intermediate-frequency signal is generated and output. Once high-frequency components are removed from the intermediate-frequency signal by the low-pass filter network, the intermediate-frequency signal is sent again for input into the transconductance/amplification stage, then amplified in the transconductance/amplification stage and output. The mixer transconductance/amplification stage employs a current-reuse technique. The input frequency and the output intermediate-frequency signal share a common transconductance/amplification stage. The mixer reduces power consumption, simplifies the circuit topology, and provides high conversion gain.
公开/授权文献
- US20130300490A1 RETURN-TYPE CURRENT-REUSE MIXER 公开/授权日:2013-11-14