首页>
外国专利>
Hybrid I-Q polar transmitter with quadrature local oscillator (LO) phase correction
Hybrid I-Q polar transmitter with quadrature local oscillator (LO) phase correction
展开▼
机译:具有正交本地振荡器(LO)相位校正的混合I-Q极性发射机
展开▼
页面导航
摘要
著录项
相似文献
摘要
A hybrid polar I-Q transmitter comprises an I-Q quantization circuit configured to receive an in-phase signal and a quadrature signal forming a first I-Q data pair, and generate a quantized in-phase signal and a quantized quadrature signal forming a second I-Q data pair, respectively, based on a resolution information of a digital-to-analog converter (DAC). Each of the first and second I-Q data pairs corresponds to a point in an I-Q constellation diagram comprising an I axis and a Q axis that are orthogonal to one another. The transmitter further comprises a quantization reduction circuit configured to determine a first rotation angle and a second rotation angle of the I-axis and Q-axis, respectively, based on the first I-Q data pair and the second I-Q data pair, and use the determined first rotation angle and the second rotation angle for generating an RF output signal.
展开▼