Patent ID: 9565043
Date: 2017-02-07
CPC Classifications: H03M,H04B,H04L

Claim:
1. A hybrid polar in-phase quadrature (I-Q) transmitter, comprising: 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) in a signal path of the quantized in-phase and quadrature signals, wherein the first and second I-Q data pairs form an I-Q constellation point; and a quantization reduction circuit to minimize a quantization error associated with the DAC, coupled to the I-Q quantization circuit and configured to, determine a first rotation angle and a second rotation angle based on the first I-Q data pair and the second I-Q data pair; and generate a radio frequency (RF) output signal based on the first rotation angle and the second rotation angle.