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  1. Closed: Re: Diagonalization of Impedance Matrix

    Not useful at all.
  2. Closed: Re: Diagonalization of Impedance Matrix

    I know such very basic thing.

    No. [Z] is not a Hermitian matrix.

    Here [Z]T means transpose of [Z], [Z]+ means conjugate transpose of [Z].

    For lossless reciprocal circuit, [Z] is a pure...
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    Closed: Re: how to get higher P1dB,in point

    High bias current and low load impedance.
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    Closed: Re: Loadpull for Differential PA

    Can you understand differential circuit ?
    https://www.edaboard.com/showthread.php?386764#2

    No. There is no coupling between L.
    Can you understand actual transformer ?

    Ideal transformer is not...
  5. Closed: Re: Problem in saving data during DC sweep simulation in Cadence Virtuoso

    Show me netlist when you invoke parametric sweep.
  6. Closed: Re: Problem in saving data during DC sweep simulation in Cadence Virtuoso

    DC Analysis is not required.

    Simply do parametric sweep for AC analysis from Cadence ADE.
    Or enclose ac analysis statement by sweep statement in netlist.
  7. Closed: Diagonalization of Impedance Matrix

    Generally an impedance matrix [Z] is a complex symmetrical matrix.
    It is neither a real symmetrical matrix nor a Hermitian matrix.

    However a complex impedance matrix [Z] can be diagonalized.
    I...
  8. Closed: Re: Too large .psf file generated by Post layout simulation using Spectre

    I can not understand what you want to mean at all.
    Describe correctly.

    Show me netlist.
    Here I don’t require circuit description.
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    Closed: Re: Impedance Calculation

    Drive by current source of known value.
  10. Closed: Re: How the stability analysis in analog and RF design related?

    No relation, although I don’t know what you mean by “delta”.
    https://designers-guide.org/forum/YaBB.pl?num=1218635777/5#5
    https://designers-guide.org/forum/YaBB.pl?num=1190272820
  11. Closed: Re: Input referred noise simulation for OP-amp

    They are same in small signal noise simulation.
    However close loop configulation such as voltage follower is required in actual measurement not EDA Tool Play.
  12. Closed: Re: Natural frequency of second order system

    No one can understand what you want to mean.
    Describe correctly.

    If you mean “standard form” as “state variable formulation”, solve eigenvalue.
  13. Closed: Re: Input referred noise simulation for OP-amp

    Input reference noise is an intrinsic value of OPAmp.

    So they are same as far as feedback does not change DC operation point and does not generate noise.
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    Closed: Re: Question about RF power meter

    It is not circuits.

    What band of frequency do you want to detect ?
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    Closed: Re: RF Energy Harvesting Power Source

    Show me netlist.
    I don't think your setting is for differential drive.

    It seems you can not understand power definition at all.

    If you don't know input impedance of rectifier, you can not know...
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    Closed: Re: Question about RF power meter

    Use AD8307, AD8313, AD8362, etc. of ADI.
  17. Closed: Re: In-band image problem for low-IF receiver

    IQ-downmixer with polyphase filter or analog complex filter

    IQ-downmixer following IQ-ADC, and use digital complex filter
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    Closed: Re: RF Energy Harvesting Power Source

    No.
    Even if averaged powers are same for modulated signal and non-modulated signal, outputs of rectifier are different for them.

    So you can not know rectifier output for Wifi signal with...
  19. Closed: Re: Color Font in MATH Editor of Open Office

    Color mapping is odd in OpenOffice-4.1.6.

    On the other hand, LibreOffice-6.2.5.2 is good.

    Is this odd color mapping ordinary in OpenOffice ?
  20. Closed: Re: Color Font in MATH Editor of Open Office

    Thanks for answer.

    However I found out more direct method.
    https://wiki.openoffice.org/wiki/Documentation/FAQ/Formula/How_do_I_change_the_color_of_a_subformula%3F
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    Closed: Re: Captured field by Array Antenna

    Still you can not understand.
    I understand such basic things.

    All elements are not active at same time.

    Only one element is active each time.

    Rarher concept is close to SAR(Synthetic...
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    Closed: Re: Captured field by Array Antenna

    Not beam forming.
    It is not phased array antenna.

    See https://www.edaboard.com/showthread.php?385864-Correction-of-Frequency-in-Arrival-Direction-Detection
    ...
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    Closed: Re: Captured field by Array Antenna

    No.
    Elements 1, 2 and 3 are not sampled at same time.

    Consider phase of complex baseband signal not RF signal at Receiver.
  24. Closed: Color Font in MATH Editor of Open Office

    Can I change color of font in MATH Editor of Open Office or Libre Office ?
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    Closed: Re: Captured field by Array Antenna

    No, I have no answer.

    We can get propagation path length difference as signal difference at feeding point while element's size "a" is comparable to element's spacing "d".

    I can not have clear...
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