hosseineslahi7
Junior Member level 1
Dear experts,
I am trying to design a buffer after an up-conversion Mixer that can drive 50 ohm load for measurement. This buffer is supposed to be used for Mixer output measurement. However, we know that there is a huge load capacitance imposed by off-chip probes and wiring. This unwanted capacitance at the load can be in order of a few pF, disturbing the Mixer performance during th measurement process.
I saw common-source topologies with capacitive cross-coupling neutralization technique in literature, but it may not be a suitable structure for high frequency measurement under high capacitive load.
Does anyone have any suggestion about a robust buffer structure for up-conversion Mixer measurement?
I am trying to design a buffer after an up-conversion Mixer that can drive 50 ohm load for measurement. This buffer is supposed to be used for Mixer output measurement. However, we know that there is a huge load capacitance imposed by off-chip probes and wiring. This unwanted capacitance at the load can be in order of a few pF, disturbing the Mixer performance during th measurement process.
I saw common-source topologies with capacitive cross-coupling neutralization technique in literature, but it may not be a suitable structure for high frequency measurement under high capacitive load.
Does anyone have any suggestion about a robust buffer structure for up-conversion Mixer measurement?