发明授权
- 专利标题: Phase error compensation circuit
- 专利标题(中): 相位误差补偿电路
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申请号: US14806478申请日: 2015-07-22
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公开(公告)号: US09479142B1公开(公告)日: 2016-10-25
- 发明人: John Perry Myers
- 申请人: Linear Technology Corporation
- 申请人地址: US CA Milpitas
- 专利权人: Linear Technology Corporation
- 当前专利权人: Linear Technology Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Han Santos Reich, PLLC
- 主分类号: H03K5/13
- IPC分类号: H03K5/13 ; H03H11/18 ; H03K5/02 ; H03K5/26 ; H03H11/22 ; H03K5/00
摘要:
A method and system of compensating for phase error. A phase error compensation circuit is configured to generate a phase-corrected quadrature Q output signal and a corresponding phase-corrected in-phase I output signal, the circuit includes a first transconductance circuit configured to convert a voltage signal related to an I input voltage signal to an I current signal. A second transconductance circuit is configured to convert a voltage signal related to a Q input signal to a Q current signal. A first multiplier circuit is configured to multiply the Q current signal times a Q scaling constant. A second multiplier circuit is configured to multiply the I current signal times an I scaling constant. An I summer sums the I current signal with the scaled Q signal. A Q summer sums the Q current signal with the scaled I signal.
公开/授权文献
- US20160301388A1 PHASE ERROR COMPENSATION CIRCUIT 公开/授权日:2016-10-13
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