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Recent content by moin26

  1. M

    How to calculate RMS phase error?

    Hi, kindly help me if someone knows how to calculate RMS Phase error.I have simulated data and measured data , but i don't know how can i calculate reference phase state?If someone have idea how to calculate reference phase state plz let me know. Because according to RMS error formula i...
  2. M

    How to calculate RMS Phase and Amplitude Errors for Digital Attenuator?

    Hi FvM, Thanks for your reply. I am not using commercial Attenuator IC. I am designing 4-bit digital attenuator. Kindly elaborate this for my understanding. By which method or procedure i can find out RMS Phase and Amplitude errors. thanks in advance.
  3. M

    How to calculate RMS Phase and Amplitude Errors for Digital Attenuator?

    Hi, Anyone knows, how to calculate RMS Phase and Amplitude Errors for 4-bit Digital Attenuator? If someone knows kindly help me in this. Thanks in advance. Moin
  4. M

    How LC network replaced to transmission line for impedance matching

    Hi , I have problem of matching during designing of attenuator. Recently i used Lc network for matching between attenuators. But by using LC size of chip increase i want to replace my LC network with micro strip line or you can suggest me some other idear. Can anyone help me how i can do...
  5. M

    6bit Attenuator Combining Problem

    Thanks BigBoss, I attached result figure of S11 and S22 in this post you can look on it.Return loss of independent attenuator is good.I attached image file if you not get kindly let me know. Thanks in advance.
  6. M

    6bit Attenuator Combining Problem

    Thanks FVM and BigBoss for your reply. I am designing chip and using T and pi topology and yes you right i have multiple attenuator in this combination in series (Pi+ T+T+T+T+Pi).Each attenuator individual work well each attenuator matching is good but when combine it becomes mess. Thanks in...
  7. M

    6bit Attenuator Combining Problem

    Hi, I am designing a 6 bit attenuator and facing a problem when I combined them together.Each bit individual work properly it achieved proper attenuation proper S11 and S22 but unfortunately when combined them together cant get required attenuation and S11 S22. Plz help me in this regard what...
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