发明名称 SIGNAL COMPONENT REJECTION
摘要 A method includes providing a first local oscillator signal having a first duty cycle to a first mixer unit and providing a second local oscillator signal having a second duty cycle to a second mixer unit. At least one of the first duty cycle or the second duty cycle is greater than fifty percent. A frequency of the first local oscillator signal approximately equals a frequency of the second local oscillator signal. The method may also include generating a modulated output signal based on an output signal of the first mixer unit and based on an output signal of the second mixer unit.
申请公布号 US2014176217(A1) 申请公布日期 2014.06.26
申请号 US201213725315 申请日期 2012.12.21
申请人 QUALCOMM, INCORPORATED 发明人 Lin Saihua;Brockenbrough Roger
分类号 H03K5/1252;H03K5/13 主分类号 H03K5/1252
代理机构 代理人
主权项 1. A method of signal generation comprising: generating, at a first mixer unit, a first mixer output signal based on a first local oscillator signal having a first duty cycle to a first mixer unit; providing a first scaled input signal to the first mixer unit, wherein the first scaled input signal is generated by scaling an input signal by a first gain factor; generating, at a second mixer unit, a second mixer output signal based on a second local oscillator signal having a second duty cycle to a second mixer unit; providing a second scaled input signal to the second mixer unit, wherein the second scaled input signal is generated by scaling the input signal by a second gain factor; providing a third local oscillator signal having a third duty cycle to a third mixer unit; providing a third scaled input signal to the third mixer unit, wherein the third scaled input signal is generated by scaling the input signal by a third gain factor; and generating a modulated output signal based on the first mixer output signal, the second mixer unit output signal, and a third mixer unit output signal.
地址 San Diego CA US