Search:

Type: Posts; User: pancho_hideboo

Page 1 of 20 1 2 3 4

Search: Search took 0.03 seconds.

  1. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    You can not understand anything regarding unidirectional and bidirectional at all.

    And you must not use formulation based on s-parameter, since you can not understand s-parameter.

    Still you can...
  2. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    Simply cascade them.
    Consider block diagram not verilog-A.
    That’s all.

    BTW, can you surely understand unidirectional model and bidirectional model ?
  3. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    Verilog-A has no relation at all.
    Simply you are very lack of knowledge of very basic linear circuit theory.

    Circuit which is substituted by nport has no direct relation to any of z,y, s.

    It...
  4. Replies
    11
    Views
    531

    [SOLVED]Closed: Re: ADEXL simulation problem in cadence

    Confirm whether model file surely include statistical descriptions.
  5. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    Surely understand nport.
    nport can work as any of Z,Y,H,F,S matrix even if file of nport is S-parameter.

    Surely learn very basic linear circuit theory before EDA Tool Play.
  6. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    No.
    Surely learn a definition of S-parameters.

    You have to calculate a1,a2,b1,b2 from s11,s12,s21,s22.
    That’s all.

    It seems you can not understand S-parameter at all as same as many people in...
  7. Replies
    15
    Views
    1,182

    Closed: Re: Question about RF power meter

    No.
    Frequency bands can be defined for them, although they are not practical values.
  8. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    Simply you can not understand S-parameter at all.

    You ignore current. It results in ignorering impedance.
    Can you understand energy conservative model and signal flow model ?
  9. Replies
    13
    Views
    506

    Closed: Re: nport primitive and VerilogA

    No.

    Simply you have mistakes in Verilog-A code or/and Netlist.

    Show me both Verilog-A code and Netlist.

    Show me header of your *.s2p.
  10. Closed: Re: $freq while using AC analysis to access lookup table

    Correction.

    `include "constants.vams"
    `include "disciplines.vams"

    module my_freq(out);
    output out;
    voltage out;

    electrical gnd;
  11. Closed: Re: $freq while using AC analysis to access lookup table

    `include "constants.vams"
    `include "disciplines.vams"

    module my_freq(out);
    output out;
    voltage out;

    electrical gnd;
    ground gnd;
  12. Closed: Re: $freq while using AC analysis to access lookup table

    Compare CDF parameter and spectre -h nport.

    Or simply use gnd node in Verilog-A.
    Ground node declaration.
  13. Closed: Re: $freq while using AC analysis to access lookup table

    If you insist on Verilog-A, instantiate spectre’s primitive nport in Verilog-A.

    https://designers-guide.org/forum/YaBB.pl?num=1574240440#2

    Other possibility is “deriv(ac_stim(1))/(M_TWO_PI)”.
    ...
  14. Closed: Re: SystemVerilog Behavioral Simulation in Cadence Virtuoso/AMS/Incisive/Spectre

    https://designers-guide.org/forum/YaBB.pl?num=1574282166

    Use file name of “*.sv”.

    Surely understand basic things correctly before EDA Tool Play.
    This is very true for all your previous posts.
  15. Closed: Re: $freq while using AC analysis to access lookup table

    Use spectre primitive, nport.

    If you use Keysight ADSsim, use DAC(Data Access Component).

    https://www.edaboard.com/showthread.php?364412/page2#23
  16. Closed: Re: $freq while using AC analysis to access lookup table

    If you mean Verilog-A, $freq is not available in Verilog-A.

    https://www.edaboard.com/showthread.php?373837#6
  17. Closed: Re: Spectre RF Envelope Simulation for Wireless Transmitter with Switched-Cap Baseban

    Simply do one tone(LO) envelope analysis.
    fs and DAC output are treated as baseband signal.
    That’s all.
  18. Closed: Re: Is it possible to eliminate harmonics when operated in compression

    Use resonator tank, if your PA is for narrowband application.
    Otherwise, use low pass filter.

    Surely learn very basic things before EDA Tool Play.
  19. Closed: Re: Plotting QAM 16 constellation in Cadence

    See followings.
    https://designers-guide.org/forum/YaBB.pl?num=1260978648
    https://designers-guide.org/forum/YaBB.pl?num=1264511244/3#3
    https://designers-guide.org/forum/YaBB.pl?num=1270105534/1#1
  20. Closed: Re: Plotting QAM 16 constellation in Cadence

    Use skill function in Cadence ViVA.
    Simply x-y plot with sampling at appropriate time points.

    Regarding EVM, calculate rms error value between output signal and reference signal.
  21. [SOLVED]Closed: Re: How to extract Voltage of a schematic net in ADS ?

    Simply add label to net.
  22. Closed: Re: Reflections when conjugately matched

    Voltage wave is reflected.

    Surely read and learn Power wave in Pozar’s Book, before EDA Tool Play.

    See the followings.
    https://www.edaboard.com/showthread.php?378353#5...
  23. Closed: Re: Noise calculation in static-dynamic circuit

    Yes........
  24. Closed: Re: Output Impedance Of a Triple cascode

    Negative real part is due to Y12.

    You don’t care about feedback path of each MOSFET at all.

    Surely learn very basic things before EDA Tool Play which you like.
  25. Closed: Re: Running different type of simulation in one environment

    Actually it is not at same time, if you use Cadence-ADE-XL(GXL).
    It is multiple launchs of simulation.

    Synopsys HSPICE and Keysight ADSsim have optimizer in simulator.
    However Cadence Spectre...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4