| 摘要 |
<p>Provided is an amplifier circuit with cross wiring of direct-current signals and microwave signals, which comprises two branch sub-circuits (201, 202) being mirrors with each other and a third capacitor (2101) connected in parallel to an output end; each sub-circuit comprises a direct-current feeding circuit and a microwave signal circuit; a heterojunction field effect tube core drain power-up port (Vds) of the direct-current feeding circuit is connected to a first micro-strip inductor (241) in series after passing through a first parallel capacitor connected in parallel, is respectively connected to one of a pair of third inductors (211, 212) by a pair of branched second inductors (231, 232), and is respectively connected to a heterojunction field effect tube core drain end; and a pair of third inductors (211, 212) of the microwave signal circuit is respectively connected to one of a pair of first capacitors (251, 252) in series after passing through one of a pair of second capacitors (221, 222) connected in parallel, is connected to one of a pair of ground inductors (261, 262) in parallel, is respectively connected to one of a pair of fourth inductors (271, 272) in series, and is connected to an output end through a serially connected fifth inductor (291). The circuit has the advantages of low sensitivity and symmetrical circuit structure. Because the circuit is not provided with a serious discontinuous area of an electromagnetic field, the territory density and the chip space use ratio can be improved.</p> |
