| 摘要 |
PURPOSE: To obtain one time of a correction step by correcting two output component signals so that a zero quandrature phase angular error can be generated, compensating carrier leakage, and generating equal output amplitude. CONSTITUTION: A first data input signal 32 is added to the input terminal of a first data adjusting circuit 31, and a first analog signal A1 is generated at the output terminal of the first data adjusting circuit 31. A second data input signal 42 is added to the input terminal of a second data adjusting circuit 41, and a second analog signal A2 is generated at the output terminal of the second data adjusting circuit 41. In this case, the first analog signal A1 is added to the input terminal of a first variable attenuator 33 having a related attenuation coefficient 35. Moreover, the second analog signal A2 is added to the input terminal of a second variable attenuator 43 having a related attenuation coefficient 45. |
