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| LNA topologies? - RF Cafe Forums | ||||||
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Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would
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Below are all of the forum threads, including all the responses to the original posts. spbhu Post subject: LNA topologies? Posted: Tue Aug 02, 2005 1:51 am Lieutenant Joined: Tue Aug 02, 2005 1:44 am Posts: 3 Location: NTU Hi, there are various ways to design LNA, for a low voltage low power requirement, which topology is better? Can any one give me some useful information on that particular topology? Thanks very much Top IR Post subject: Posted: Tue Aug 02, 2005 7:57 am Site Admin Joined: Mon Jun 27, 2005 2:02 pm Posts: 373 Location: Germany Hello spbhu, There are several parameters in LNA design, which have trade-offs between each other. For example: High linearity vs. low current consumption, high gain vs stability etc. When you design your LNA, you are working according to given specs. and this dictates the device you will choose. Per a given device, you start to design the surrounding circuit that will determine the parameters you need. In the design process there are trade-offs between gain and NF and stability by means of circles on the Smith Chart. You will have to do a compromise between all these parameters, this compromise will determine your matching/bias circuit components values. Good luck! _________________ Best regards, - IR Posted 11/12/2012 | ||||||
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