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Recent content by lindaknoll2002

  1. L

    Broadband bias circuits

    Thank you guys or the help. It works perfectly. Linda.
  2. L

    Broadband bias circuits

    Hi all, I need to design a bias circuits which can reject RF from going to the DC supply without cause niticeable insertion loss at the signal line. The operating frequency is from 1 MHz to 3 GHz. Can anyone suggests some idea how this can be done? Thank you. Linda.
  3. L

    Which diode or transistor can be used in ku band mixer?

    Re: about ku band mixer You can also use an FET to make a mixer at Ku band. This is common for DBS LNB. Device you can use, as an example, www.cel.com NE3210S01. Linda
  4. L

    low noise amplifier design

    I think he means noise figure be less than 2dB. Noise figure is one of the most important figure of merir for low noise amplifier. It is defined as the 10log of the ratio of output signal to noise to input signal to noise ratio. If it is 0 dB, then the signal to noise ratio at the input and...
  5. L

    How was Wainwright's high pass filters done?

    Re: High pass filter High pass filter in general is not easy to make, however, waveguide itself is a high pass filter so it is easier in waveguide strcuture to realize a high pass. Linda
  6. L

    Combline cavityfilter

    parfil программа Dear Driends, Where can I find these books? Wenzel & Horton synthesis, NYJ Book (Mathaei), as well as the italian proffesors paper? Thanks. Linda
  7. L

    ne321000 nonlinear model - help needed

    Re: ne321000 nonlinear model NEC does have the ADS model for most of their devices. Go to www.cel.com and download the ads design kit, it should have what you need. This download is a new addon. Good luck. Linda. :) :)
  8. L

    ne321000 nonlinear model - help needed

    Re: ne321000 nonlinear model Basically you just use the number in the libral and insert them into the ADS model, and they work, and that's what I mean. Linda.
  9. L

    ne321000 nonlinear model - help needed

    Re: ne321000 nonlinear model Check with www.cel.com/eng/eng_models.asp and down load the parameters and fill these numbers in the ads tom's model. then you have it. Linda.
  10. L

    a good article on VCo design

    A good VCO design referece
  11. L

    ElectroMagneticWorks HF Works 1.5

    hf-works I like AutoCAD. Solid work is too complicated.
  12. L

    Ansoft Designer - does anybody know it?

    I heard HFSS9.0 is going to be released in the first half of the year. The major change is the interface. Don't know how much difference it is. Linda.
  13. L

    The difference between CST and Sonnet

    I heard that CST is the best. It is better than HFSS although I never ysed it. Linda.
  14. L

    A Low Phase Noise Silicon 9 GHz VCO and an 18 GHz Push-Push

    These is a paper published by guys from the University of Michigan in IEEE MTT not long ago. I think this one is. Linda
  15. L

    SysCalc 5.0- RF system design calculator

    rf system calculator Do you know what is the difference between full version and the free lite version? Thanks. Linda
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