| 摘要 |
A mixer circuit includes a first transistor and a second transistor of different conduction types which are connected and the emitter of the first transistor is connected to the collector of the second transistor, and the collector of the first transistor is connected to the emitter of the second transistor, a third transistor, whose collector is connected to the emitter of the first transistor, a power supply terminal connected to the collector of the first transistor, a radio frequency (RF) terminal connected to the collector of the first transistor, a local signal (LO) terminal connected to the base of the first transistor, an intermediate frequency (IF) terminal connected to the base of the second transistor, and a ground terminal connected to the emitter of the third transistor.
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