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NQS effect in LNA design (Read 2660 times)

ssk_288 Junior Member Offline Miles to Go Posts: 12 Bangalore	NQS effect in LNA design Oct 17^th, 2005, 7:01am Hi, I am designing a LNA to operate at 2.4 GHz. I am using the classical LNA design. How do I account for the channel charging resistance due to Non-Quasi static effect. I have set NQSmod = 1 in the model file but I do not see any variation in S11 due to this. I am using 0.13um technology. regards SUDHIR
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Paul Community Fellow Offline Posts: 351 Switzerland	Re: NQS effect in LNA design Reply #1 - Oct 19^th, 2005, 12:26am Hi Sudhir, if you use minimum channel length devices in the technology you use, I would guess the QS assumption holds in the 2.4GHz region. What is your upper frequency limit when running S-parameter simulation? Paul
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ssk_288

Junior Member

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Miles to Go

Posts: 12
Bangalore

Re: NQS effect in LNA design
Reply #2 - Oct 21^st, 2005, 10:41pm

Hi Paul

Thanx for replying

Actually I am designing a Zigbee compliant transceiver. The frequency range of operation is from 2.405 GHz to 2.480 GHz. I am not using minimum length devices because the output impedence is very less for minimum length devices.
Min length - 120nm
transistor length I am using 300nm

Regards
SUDHIR

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