| 摘要 |
Traditionally, mixers have been arranged symmetrically around the input signal, which has resulted in problems due to self-mixing or feed-through by the local oscillator signal. Here, however, the arrangement for a mixer has been changed to generally avoid self-mixing of the local oscillator signal. In particular, transistors in the switching core are merged according to the portion of the local oscillator signal received. This, in turn, results in the conductors, which carry the different portions of the local oscillator signal, being separated (or not having any crossings) so as to generally eliminate self-mixing or feed-through of the local oscillator signal. Complex IQ mixers realized using this arrangement benefit from improved sideband suppression and image rejection.
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