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Direct conversion receiver using vertical bipolar junction transistor available in deep n-well CMOS technology
Direct conversion receiver using vertical bipolar junction transistor available in deep n-well CMOS technology
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机译:使用深n阱CMOS技术的垂直双极结型晶体管的直接转换接收器
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摘要
This invention is about the direct conversion receiver. It is excellent the receiving sensitivity that DC off-set, matching characteristics of the relationship of I/Q circuits and noise characteristics are improved. In order to achieve this purpose, the direct conversion receiver uses vertical bipolar junction transistor available in standard triple-well CMOS technology in the switching element of mixer and base-band analog circuits. Furthermore, as using the passive mixer in the other practical example of this invention, this invention controls the occurrence of l/f noise. As using the vertical bipolar junction transistor available in standard triple-well CMOS in the base-band analog circuits, this invention realizes the direct conversion receiver that DC off-set, matching characteristics of the relationship of I/Q circuit and noise characteristics are improved.
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