发明名称 |
FULLY-INTEGRATED ANTI-BLOCKING RADIO FREQUENCY RECEIVING FRONT-END ARCHITECTURE |
摘要 |
Disclosed is a fully-integrated anti-blocking radio frequency receiving front-end architecture, comprising a blocking signal filtering stage and a down mixing stage. The blocking signal filtering stage is a feed-forward structure, and a main branch and a feed-forward branch use low-noise amplifiers with same circuit structures to realize matching. In addition, the feed-forward branch uses the impedance moving feature of a passive mixer in the frequency domain, a band elimination filter is generated at a radio frequency local oscillator to filter useful signals, and then a useful radio frequency signal is obtained by subtracting an obtained blocking signal from a blocking signal of the main branch. Because the blocking signal is directly filtered out after two low-noise amplifiers, influence on another circuit is avoided, and other non-ideal factors are avoided. Down mixing is realized to obtain a useful middle-frequency signal by connecting the passive mixer. |
申请公布号 |
WO2016127822(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
WO2016CN72557 |
申请日期 |
2016.01.28 |
申请人 |
SOUTHEAST UNIVERSITY |
发明人 |
WU, Jianhui;CHENG, Chao;YU, Tianji;YAO, Hongyan;CHENG, Kang;CHEN, Chao;LI, Hong;HUANG, Cheng |
分类号 |
H04B1/16 |
主分类号 |
H04B1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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