发明名称 |
Reduced local oscillator feedthrough quadrature image reject mixer |
摘要 |
An RF communications circuit having a reduced LO feed through image reject mixer is disclosed. The image reject mixer includes a quadrature phase transconductance stage coupled to a quadrature phase mixer of a quadrature phase mixer module and an in-phase mixer of an in-phase mixer module. The image reject mixer further includes an in-phase transconductance stage coupled to an in-phase mixer of the quadrature phase mixer module and a quadrature phase mixer of the in-phase mixer module. The output of the quadrature phase mixer and in-phase mixer of the quadrature phase mixer module are cross-coupled to form a quadrature phase local oscillator (LO) output and wherein the output of the quadrature phase mixer and in-phase mixer of the in-phase mixer module are cross-coupled to form an in-phase local oscillator (LO) output.
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申请公布号 |
US7266357(B2) |
申请公布日期 |
2007.09.04 |
申请号 |
US20030436191 |
申请日期 |
2003.05.12 |
申请人 |
BROADCOM CORPORATION |
发明人 |
BEHZAD ARYA REZA |
分类号 |
H04B1/10;H03D7/14;H03D7/18;H04L27/227 |
主分类号 |
H04B1/10 |
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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