| 摘要 |
A transmitter capable of operating according to a first standard that does not interfere with a nearby frequency generator operating according to a second standard. The transmitter comprises an oscillator, a frequency divider, a mixer, and a filter. The oscillator is configured to output a first frequency that is outside of a frequency harmonic of the frequency generator. The frequency divider is coupled to the oscillator and divides the first frequency by a selective divide ratio to produce a second frequency. The mixer is configured to receive the first and second frequencies, which combines them to produce a mixed frequency. The filter is then used to filter the mixed frequency to obtain the higher portion of the mixed frequency. The divide ratio of the frequency divider is selected based on the desired output frequency of the transmitter such that a 2.4 GHz or 5 GHz ISM band frequency is achieved.
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