| 摘要 |
Methods and systems for robust single sideband LO generation are disclosed. Aspects of one method may include generating LO output signals where a VCO may generate a signal that may be used to generate a first pair of signals and a second pair of signals. The first pair of signals, with a frequency of 1.8 GHz, may be 90° out of phase With each other, and the second pair of signals, with a frequency of 800 MHz, may be 90° out of phase with each other. The second pair of signals may be linearly amplified and low-pass filtered. The filtered signals may be mixed with the first pair of signals to generate the LO output signals. A corner frequency for the low-pass filter may be substantially 1.5 times the frequency of a fundamental frequency for the signal to be filtered. Various embodiments of the invention may generate differential output signals, including the LO output signals.
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