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power amplifier design help

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mehdi81

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i want to design a power amplifier at 3Ghz with 0.1mWatt as input and 100Watt as output
i need help
thanks
 

60 dB gain and 50 dBm output power? You need a multistage design, at least three...
 
mehdi81 said:
do i have to use class A,B or C
can you help me
Click to expand...

That depends on what you want to use the amplifier for...

eg .... AM, FM, SSB, data what mode ?

Dave
 
For efficiency, I recommend you to use Class-E..
 

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can you advise me about a device which can provide the specifications i want
because my major problem is to find the appropriate device to use
thanks
 

You can use the following LDMOS transistors from NXP:

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thanks for responding :-D
i the transistor that you suggest me there is no model to simulate in the data sheet how can i do ?:cry:
 

The datasheets provides the optimized input/output impedances at different frequencies, which can help finding the matching networks.
You can ask NXP if they have the models for those transistors, which are relative new products.
 

Transistors manufacturers provide models which can be used in various circuit simulators such as ADS. Please visit their website.
 

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