| 摘要 |
<p>A radio receiver comprising: a frequency shifter for receiving a radio frequency signal including a wanted signal in a first frequency band and an interferer in a second frequency band overlapping the first frequency band, and for frequency shifting the radio frequency signal to form a frequency shifted signal, in which the first frequency band is shifted to a third frequency band below radio frequency and the second frequency band is shifted to a fourth frequency band; and a filter for receiving the frequency shifted signal and for attenuating the fourth frequency band relative to the parts of the third frequency band that do not include the fourth frequency band, wherein the filter is dynamically tuneable.</p> |
