yyan71
Banned
I am designing a wireless transmitter device. for the signal up conversion part please see my attached graph.
I think maybe it is hard to deal with the 2.4GHz LO leakage, because the 2400MHz LO frequency is too close to 2400.001MHz RF frequency.
Please advice me how should I design the filter or where can I buy the filter to eliminate the 2400MHz LO frequency, while remain the 2400.001MHz RF signal frequency.
At the same time, I am thinking of applying FM modulation instead of AM. Does anyone know that whether there is a kind of FM modulator can convert 0 to 150Hz signal to IF band say FM tunable in around 200MHz to 1000MHz.
I am a fresh man in this area, I will give thousands of thanks to anyone here who helps...
I think maybe it is hard to deal with the 2.4GHz LO leakage, because the 2400MHz LO frequency is too close to 2400.001MHz RF frequency.
Please advice me how should I design the filter or where can I buy the filter to eliminate the 2400MHz LO frequency, while remain the 2400.001MHz RF signal frequency.
At the same time, I am thinking of applying FM modulation instead of AM. Does anyone know that whether there is a kind of FM modulator can convert 0 to 150Hz signal to IF band say FM tunable in around 200MHz to 1000MHz.
I am a fresh man in this area, I will give thousands of thanks to anyone here who helps...