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Hi all
No I will do some lyaout for RF transformer chip test pattern, we have two on-wafer probes, but how to measure the three ports? Anyone could give me some test patetrns about that? thanks a lot.
Now I use Sonnet to simulate some lines inside the CMOS power cell, first I save the results as the touchstone (*.SNP) file and then import it into the ADS (with the SN model), but found that the laodline is not modulated by the bais Vgsm and DC in the drain alos changes a lot (from 40 mA to 500...
Hi, Now I'm designneing the RF CMOS power cell, I want to design the proper gateline netwirk with EM simulator, but found that it is so sensitive to the conductive substrate? (I mean when the sub is setted with cnductive, the gain will degerate a lot but when it is setted with nonconductive...
Now I'm involving some CMOS PA design, adn when I design CMOS power cell, when I use the tranmission line mode (ADS), everything looks like OK, but when I repalce this ADS lines with EM simulations, I found that the gain distorted a lot becasue of gate line, but drain line will not be affected...
Hi, buddy!
I need Dongbu013um ADS PDK to design power amplifier, but I heared that they only offer Cadence PDK, so is there anybody once met this case, how to solve it? pls tell me sth. Thanks a lot.
Hi, buddy!
I need Dongbu013um ADS PDK to design power amplifier, but I heared that they only offer Cadence PDK, so is there anybody once met this case, how to solve it? pls tell me sth. Thanks a lot.
when analyzing the coupling between transmission lines on the CMOS, I used the bondwire as the output link offerd by CST, but I found that there's little output, could you help everybody analyz the reason? and how to set the groundf for the CMOS?
attached files:
1. currnet distribution in the...
I have to design a transformer to solve the problem of output matching for PA, so far I have read some papers about it, but I still wish to get some advices from you, so could you give me some advice (such as methods, prodcessure, simulation tools, something like that). thank you! ^_^
Hello, everybody
Now the professor will ask me to research on digital power amplifier, but I don't know much about it so far, could you tell me something about it? such as key techniques, future job, future development and so on, nd recommend some readings best. Thanks a lot.
Recently, I will develop the power amplifier based on CMOS tech, but I don't know much about its disadvantages? if somebody would like to talk about it, thanks a lot.
Hi, everybody, I will choose my research interset not long before, my group chief suggersts me the basestation PA, I don't know how to deicide it? Could you give me some advices? Which one is promising? I mean which one is more helpful for harvest and good job? please don't reply to me, such as...
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