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Type: Posts; User: BigBoss

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  1. Replies
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    Closed: Re: Broken RF ground plane

    Don't cut the GND plane, connect the LEDs' wires by jumpers over CPWG in air..( put at least 5mm or more height and use rigid jumper wires.)
  2. Closed: Re: LC VCO with Capacitor filter, what is the cap doing?

    Since you use an ideal voltage source, how this cap improves the PN ?? If you used a noisy-real voltage source, I could understand the filtering function of that cap but you didn't..
    I believe there...
  3. Closed: Re: Response of the TLINE for different frequencies and lengths

    In fact, it's more comfortable doing this test in ADS.Cadence Spectre is not so good for this type plottings.
    153762153763
  4. Closed: Re: Response of the TLINE for different frequencies and lengths

    You are sweeping "freq" variable ?? If it's so, you're doing a mistake because freq is not a variable for Cadence Spectre..
    Instead, you should fix the frequency in s-parameters simulation in...
  5. Closed: Re: Installing Cadence , Assura , EXT and MMSIM in Ubuntu

    Some tools support Ubuntu but some of them don't..So, it will be a serious trouble for you ..
    If I were you, I'd install RedHat 7 then install them seamlessly..
  6. [SOLVED]Closed: Re: Drawing simple Data in Smith ADS smith Chart

    Smith Chart is a Graphical Representation of Complex Quantities so every kind of Complex Quantities can be read such as Impedance,Admittance,Reflection Coefficients,s-parameters etc.
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    Closed: Re: cadence to ADS EM simulation

    Cadence ADE does not have any EM simulator that you need to check the coupling effects of two coils.But you can install Sonnet, ADS Momentum even HFSS to verify your coils.
    In order to do this, you...
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    Closed: Re: cadence to ADS EM simulation

    If you have s-parameters of that inductor, why you wanna simulate it in ADS Momentum ?? Or you just want to use those s-parameters in ADSs Co-Simulation ??
    Your question is a bit floating..
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    Closed: Re: TSMC 65nm Inductor Finder Parameters

    Q: Quality Factor of the Inductor
    F(Qmax) : The Frequency where the Q Factor becomes maximum
    Freg : ?? I don't know..
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    Where did you entered Design Environment Variables for Cadence ADE ?? You should insert Sonnet script into this file.
    I presume that you can launch Cadence ADE as a ordinary user right ?? The same...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    You should modify .profile in your $HOME directory.( or .cshrc depends on your config.)
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    Prepend_LD_LIBRARY_PATH=/usr/lib/tls/nvidia-367/
    is just an example, you have to change LD_LIBRARY_PATH regarding to your system..Look at where OpenGL or Display Driver Libraries are installed..
    ...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    .cdsinit may be found in 3 directory and each one has a priority ..

    ./.cdsinit : Project Directory ( most prioritized )
    ~/.cdsinit : User Home Directory
    <cds_inst_dir>/tools/dfII/local/.cdsinit...
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    Closed: Re: RF Power Amplifier Design

    I think a system/envelope simulation should be done like to predict ACPR.It ought to be similar..
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    All executables should be reached/able to execute by ordinary users.You should arrange them as I typed here ..
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    Closed: Re: loadpull in power amplifier

    A Matching Circuit which has been found for max. Delivered Power or max. Efficiency or max. Gain ( simultaneous matching is not possible for these three metrics ) will also suppress 2nd and 3rd...
  17. Closed: Re: Procedure to find optimum inter-stage matching in stack amplifier

    OK, it's now clear. I didn't see that it's an Power Amplifier what I thought Low Noise Amplifier..
    The case is simple.. You should match the Last Stage for Optimum Load ( Source Matching can be...
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    Closed: Re: Output impedance of RF filter

    You can design this filter for 50 Ohm Source and Load Impedances then you can add an Impedance Matching Circuit to desired side to obtain wanted Impedance value.
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    If the library is not available there are 2 options.
    -library has been deployed in a different repository other than CentOS official one
    -The library comes with a package such as LibGL.Have you...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    I believe a special(!) version but some other problems are very obviously coming from missing libraries or permission corruptions..
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    In order to install onto OS, you should use "yum" instruction.

    yum -install <package or library name> ( some files can be installed different repositories , see linux help how to install )
    Some...
  22. Closed: Re: Procedure to find optimum inter-stage matching in stack amplifier

    Matching for M1 is not very correct because you neglect S12..Similarly, while you're matching for M2, you assume that S12 is zero etc..
    Matching starts from the last stage with a fixed load...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    They are not folders..They are simply missing 32bits libraries ( probably in regard of OpenGL ).
    Install them which are missing..
    Also, there might be some owner problems of the files and/or Sonnet...
  24. Closed: Re: Stability of a circuit and its role in design steps

    Overall Stability depends also on "Viewed Impedance" by active device.in fact there are 2 stability metrics..
    -Intrinsic Stability of the active device that is variable by Presented Impedance to the...
  25. Closed: Re: Input impedance of transmission lines connected in cascade

    General equation for Transmission Lines which are terminated by arbitrary impedance is valid.( see textbooks) So you can calculate one-by-one global Input Impedance of cascaded Transmission Lines.
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