45G mixer gain matching
时间：04-05
整理：3721RD
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IF：0~2G RF:45G~47G LO:45G Tech: RFCMOS90nm
1、When I measure the gain of up-conversion and down-conversion， What gain should I use? Power gain or voltage gain? Some persions gave me answer: Up uses power gain, down uses voltage gain. Is this right?
2、Messurement and IF Matching
Does IF port need matching in up-conversion and down-conversion? If don't need matching, can you tell me the detal?
3、LO Matching
In my circuit, the real and imag part of input different impedence of LO port is very different, i.e 9-j*110, so it is very different to design the Balun to match the LO port. Do you any suggestion?
1、When I measure the gain of up-conversion and down-conversion， What gain should I use? Power gain or voltage gain? Some persions gave me answer: Up uses power gain, down uses voltage gain. Is this right?
2、Messurement and IF Matching
Does IF port need matching in up-conversion and down-conversion? If don't need matching, can you tell me the detal?
3、LO Matching
In my circuit, the real and imag part of input different impedence of LO port is very different, i.e 9-j*110, so it is very different to design the Balun to match the LO port. Do you any suggestion?
First..
What kind of mixer do you intend ?Your questions may have different answers regarding to mixer type..
My mixer is traditional Gilbert Mixer.