| 摘要 |
<p>A double balanced mixer circuit comprising a differential pair of first amplifier elements responsive to an RF differential input signal, double differential pairs of second amplifier elements responsive to an LO differential input signal, and differential output terminals connected with the second amplifier paths. Coupling elements provide first and second parallel DC connections between DC voltage supply rails for the first and the double second amplifier paths respectively and a series RF connection of the first and second amplifier paths between the supply rails so as to produce a mixed differential amplified signal at the differential output terminals. The coupling elements include respective transmission lines in the first amplifier paths connected between one of the DC voltage supply rails and respective ones of the first amplifier elements and a common transmission line connected between the other of the DC voltage supply rails and both the first amplifier elements.</p> |
