Dr G S Javed asks WHY ?

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February 09, 2011

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Parameter Conversion: S to Z Y h T

When an RF Engineer starts designing a circuit, there comes a time where s/he encounters s-parameters. Looking at that s/he needs to make a call on the different other parameters like h-, Z-, T- or Y-. Is there a tool which does it for you? YES, there is !! A web based calculator which can do the conversion of S-Y-Z back and forth. How does it do that ? The formulae which allow us to go through with the rigour needed are available in most texts and scholarly articles. But for the people in the MATLAB zone, there is the RF ToolBox which has the s2z converter function to do the needful. Hey, hello !! Hold on!! What are you talking about ? The 2-port network shown above is representative of that implied in the application of these equations. All of the parameter equations make use of complex values for all numbers of impedance and the resulting matrix parameters, i.e., Z = R ± jX. Z 01 and Z 02 are the complex impedances of ports 1 and 2, respectively; simi...

Technical Paper Writing: A Step-by-Step tutorial and Literature Survey

I. Introduction There are many detailed versions for this answer. I will keep it short and sweet. What are the observations ? ( Your Findings ) What is the reference or bench mark of your comparison? ( Current state-of-the-art ) How does is compare to the existing work ? ( Literature Survey ). It means to find where the current boundary of the work exists ? Does your observation push the boundary forward ? If not, what does it showcase. Is the mathematical model / business model clearly built with strong fundamentals ( Work Analysis )? Can you present it in a form that conveys the message clearly. If not, take help. You can begin with these points. Once you write the above, you can expand it accordingly to suite either a journal or a conference proceeding. II. How to read the important papers in your area (Root Papers) There are millions of papers and scores of areas in which people publish work.You could pick an area of your choice, and search the root of a paper which ...

Cancer Killer - Tree

Time and again we have found the news of scientists/ Researchers find a cure (Synthetic) for the Cancer Cells. But, we failed to see that nature had already kept it ready for us. Soursop or Graviola . For some more information, go here . Now you have to think the reason the private pharma companies kept is away from us, why?

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