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Product Modulator design

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sudip_kuet08

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Can anyone please help me to design a product modulator

My signal is S1(t)=sinwct(f=100KHz)
S2(t)=.765(sinwct-135)

I have to multiply this two signal.......................

Thanks
sudip
 

Any balanced mixer is in principle the "product" modulator, or, a multiplier. The important point is that one of the signals to be multiplied can fully open and close mixer diodes (called a local or pump signal). For diode mixers, the nominal LO level is +7...+13 dBm, or, around 10 mW. The other signal should be lower in magnitude than the first. At mixer output you will get the product of both signals, a DC component corresponding to the LO power, and harmonics of the product. You can separate the unwanted components by filters and by a capacitive output coupling.

Study the mixer basics from a textbook to understand their operation.
 

can anyone please provide me a circuit diagram.....................???

thanks
sudip

---------- Post added at 14:20 ---------- Previous post was at 14:19 ----------

can anyone please provide me a circuit diagram.....................???

thanks
sudip
 

sudip_kuet08 said:
can anyone please provide me a circuit diagram.....................???

thanks
sudip

---------- Post added at 14:20 ---------- Previous post was at 14:19 ----------

can anyone please provide me a circuit diagram.....................???

thanks
sudip
Click to expand...

Please look at "www.minicircuits.com", MIXERS, and Markimicrowave.com, they also have white papers on mixers. Why haven't you even look in a basic electronic textbook?!
 

you will find some textbook fro your reference.
**broken link removed**
 

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