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How can I begin my LNA design?

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xuebi

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I am a newbie of RFIC design. I have chosen the CMOS LNA topology according to the design specification, which is the cascode amplifier with source degeneration. But how can I begin my design and parameter optimization using Cadence Spectra? Where can I find a detailed step-by-step procedure for LNA design? Please give me some advices. Thanks!
 

Thanks!

I have read some books and papers about CMOS LNA design theory, but I still can not set about it. So I think what I need most is a simple step-by-step design example.
 

use the ADS to simulate and then do a PCB and then test it , this is the best way to do the LNA
 

The project I am doing now is CMOS LNA, which is a little different from the traditional microwave LNA design. For example, I have to decide the size of the mos transistor. So I think it may be better if I can find a detailed design example. however, most textbooks just cover a lot of similar LNA theory.
 

I think we always have to calculate the size of MOS transistors and thats not new and you may also read some books on CMOS: for example

1. Design of Analog Integrated Circuits by Razavi
2. Book by Philip Allen

/Kella
 

guys, if you have read some materials about COMS LNA, such as Thomas Lee's paper, you can start your design following by it. By the way, to kella, i have read www.rfic.co.uk about LNA design, there is a little difference between it and Thomas Lee's suggestion, can you explain it in detail, thanks a lot!!
to xuebi, and you can simulate your design step by step according to spectreRF.pdf. it is in cadence help document
//tiger
 

A good start is Thomas Lee's book or Razavi's book. Also there are some good IEEE papers by Thomas Lee ( you can find them in the book by Thomas Lee)
 

I agree, for CMOS, Thomas Lee's book is actually very good, I used it for a CMOS LNA.
 

I think T. Lee 's the design of CMOS RF circuits (second edition) is a goo reference
 

Shaeffer correct the Q value to 2.6 for fixed Pd optimization topology in Jun, 2005. During these 8 years, nobody noticed that the Noise factor equation is wrong...
 

This classical paper may be difficult for beginners to understand.

What's more, I found a lot of knowledge about analog circuit is necessary for RFIC design.
 

Check this LNA presentation I found from Institute of Microelectronic System.
It has noise theory and LNA topologies.
Hope helps you.
 

I think Thomas Lee's book on CMOS IC design is very useful, though some mistakes there, but very good for beginners:D
 

dsjomo said:
Shaeffer correct the Q value to 2.6 for fixed Pd optimization topology in Jun, 2005. During these 8 years, nobody noticed that the Noise factor equation is wrong...
Click to expand...

Any paper related to this ?
 

i think u shoul read book on amplifiers by Vendelin..it will be a good start then u can go for above mentioned books
 

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