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Recent content by eco

  1. E

    The stability of LNA?

    lna stability considerations A non-zero S12 represents a signal path from the transistor output to the input. This feedback path is an opportunity for oscillation to occur.
  2. E

    MIC before MMIC or MMIC before MIC

    In many cases, same design principles apply to both MIC and MMIC circuits.
  3. E

    Adding/Subtracting two microwave signals

    Wilkinson power divider consists of a lumped resistor. For a fully planar solution, you can search in IEEExplore, where lots of paper report novel structures of power divider/combiner realized in pure microstrip form.
  4. E

    Are there any famous analog IC design companies in China?

    famous analog designer I am afraid you have to contact them by yourself for information of their products. I am not familiar with that. Rgds
  5. E

    do you want to find friend working together in china?

    hi Pipeline, No, I am only a graduate student of a university which happens to be in the same city with Silan and Sicomm. If you are interested in these two companies, I strongly suggest you take a closer look. They are both good. Rgds, eco
  6. E

    Which book is better? Gray or Grebene?

    hi all, I wonder which of the following two books is better for self-study on analog IC: Analysis and design of analog integrated circuits, by Gray, etc. and Bipolar and MOS Analog IC Design, by Grebene. What is the major difference between the two? Thanks, eco
  7. E

    Looking for some LC ladder tutorials

    Re: LC ladder help This book might help: Theory and Design of Broadband Matching Networks by WAI-KAI CHEN Rgds
  8. E

    do you want to find friend working together in china?

    hi Pipeline, You are right. SiComm is a sub-company of Silan, and it mainly deals with RFIC and mixed signal IC. Web of SiComm: **broken link removed** You have to understand Chinese to view this page.
  9. E

    Are there any famous analog IC design companies in China?

    analog design companies Silan is a famous analog IC company in China. It owns several sub-companies which deals with various things like RFIC, digital IC and so on. Web for silan: **broken link removed** Ummm...seems down right now. Maybe recover later.
  10. E

    Looking for a good RF design for a student

    Re: rf design hi, I would like to suggest following books, which I found very useful. RF Microwave Circuit Design for Wireless Applications by Ulrich L. Rohde Introduction to Radio Frequency Design by Wes Hayward Rgds, eco
  11. E

    i was a RF fresh man, some questions about RF

    My experience of using any CAD tool is that you have to obtain at least basic knowledge on the subject. Following the manual and clicking buttons are one thing, maybe some circuits can be built successfully in this way, while exactly understanding them is another. For PLL design, a good start...
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