DEVICES AND METHODS FOR REDUCING SIGNAL DISTORTION IN I/Q MODULATION TRANSCEIVERS

摘要

Devices and methods for reducing or substantially eliminating I/Q mismatch and/or LO leakage in I/Q transceivers are provided. By way of example, an electronic device includes a transceiver configured to receive an in-phase/quadrature (I/Q) signal, and to generate an electromagnetic signal based on the I/Q signal. However, the electromagnetic signal may also include a distortion. Accordingly, the transceiver is also configured to receive a feedback signal based on the electromagnetic signal, measure an energy of the distortion by way of the feedback signal, and to generate one or more correction factors based at least in part on the energy of the distortion. The one or more correction factors may be utilized to reduce or substantially eliminate the distortion of the electromagnetic signal.

主权项

1. An electronic device, comprising:
a transceiver configured to:
receive an in-phase/quadrature (I/Q) signal;generate an electromagnetic signal based on the I/Q signal;receive a feedback signal based on the electromagnetic signal;measure a spectral energy of an I/Q mismatch (IQMM) component or a local oscillator (LO) leakage component in a frequency domain by way of the feedback signal; andgenerate one or more correction factors based at least in part on the spectral energy, wherein generating the one or more correction factors comprises reducing or substantially eliminating the IQMM component or the LO leakage component of the electromagnetic signal.