Invention Grant
- Patent Title: Phase error compensation circuit
- Patent Title (中): 相位误差补偿电路
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Application No.: US14806478Application Date: 2015-07-22
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Publication No.: US09479142B1Publication Date: 2016-10-25
- Inventor: John Perry Myers
- Applicant: Linear Technology Corporation
- Applicant Address: US CA Milpitas
- Assignee: Linear Technology Corporation
- Current Assignee: Linear Technology Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Han Santos Reich, PLLC
- Main IPC: H03K5/13
- IPC: H03K5/13 ; H03H11/18 ; H03K5/02 ; H03K5/26 ; H03H11/22 ; H03K5/00

Abstract:
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.
Public/Granted literature
- US20160301388A1 PHASE ERROR COMPENSATION CIRCUIT Public/Granted day:2016-10-13
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