ACTIVE SWITCHING MIXER HAVING IMPROVED LINEARITY

摘要

An active switch frequency mixer with an improved linearity is arranged to realize that the high linearity by the third order intermodulation distortion current component that disappears generated in a conversion stage, a third order intermodulation distortion current component generate in a transconductance stage, mutually. An active switch frequency mixer with an improved linearity includes a transconductance stage (110) and conversion stage (120). Transconductance stage has multiple active elements, at least one main running signal is input into transconductance stage. The conversion stage couples with transconductance stage, has multiple active elements. If (intermediate frequency) signal from conversion the stage output, at least one LO (local oscillator) signal be input into the conversion stage and at least one. One resonance coil (111) be connected among a large amount of active elements in the conversion stage at least one active component to or more a common source node.