APPARATUS AND METHODS FOR SIGNAL GENERATION, RECEPTION, AND SELF-CALIBRATION

摘要

Apparatus and methods for signal generation, reception, and calibration involving quadrature modulation and frequency conversion. Embodiments of the present invention provide extremely wide bandwidth, high spectral purity, versatility and adaptability in configuration, and ease of calibration, and are particularly well-adapted for use in integrated circuitry.

主权项

1. An apparatus for phase noise optimization, the apparatus comprising:
at least two frequency synthesizers, wherein at least one of the synthesizers has a control parameter affecting its phase noise performance, wherein the synthesizers are mixed to obtain an intermediate frequency; the intermediate frequency signal is digitized and analyzed for phase noise performance, and the control parameter is varied to optimize the phase noise performance.