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  1. N

    Differential measurement with single ended probes in VNA

    Hi all I have to measure S parameters for a differential line.But I have a constraint that it is not possible to measure coupling factors,s12(ie b/w adjacent ports) because of the close proximity of ports.Can you suggest a way to calculate the differential S parameters from single ended lines...
  2. N

    Addition of real part and imaginary part of voltage in hspice

    I need to add the real and imaginary part of voltage in HSPICE.I need to get magnitude Vm is not working.I guess I shoud add both separately and calculate the magnitude. Please provide the command Thanks & Regards
  3. N

    Question about SWF file in SIwave

    Re: siwave vs. hfss Hi Itai would like to know how can use the brd file I'm having in SIWAVE for PI Analysis??How can I convert it to siw format?? Thanks in Advance
  4. N

    To convert brd file to siw file

    How to convert brd file to siw file so that it can be used in siwave?Or please suggest some other method it can be converted to siw file using ansoftlinks?? Thanks in Advance
  5. N

    Time Domain Simulation in Hspice from touchstone file

    Would like to know whether we can use the touchstone file directly in hspice??will s-parameter model work?
  6. N

    time domain simulation of touchstone file

    Hi Sourav U can use broadband spice to convert the touchstone file to netlist and do the time domain simulation in hspice
  7. N

    Time Domain Simulation in Hspice from touchstone file

    Can somebody tell me how we can do the time domain simulation in Hspice with touchstone file(.s*p)?? Thanks & Regards
  8. N

    dielectric constant of bowtie antennas for GPR applications

    What is the criteria for selecting the dielectric constant of bowtie antennas for GPR applications??
  9. N

    feed position of bow tie antenna

    I’m planning to make a microstrip bowtie antenna:either slot or printed Can you tell me which is the dimension which mostly affects the highr cutoff frequency and bandwidth for bowtie antenna..can you please explain me with some mathematical relation
  10. N

    feed position of bow tie antenna

    Yes..i don think always at the centre it will be 50 ohms..so,how will you match the feed with the antenna if u r using coaxial feed
  11. N

    feed position of bow tie antenna

    Hi Do anyone know how to find the feed position of a bow tie antenna.
  12. N

    Difference between on-chip inductor and off-chip inductor

    On-chip inductors are those integrated within the chip.Usually these on chip inductors consume a very large portion of chip area.And poses a no. of design difficulties..usually in the range of nH. Off-chip inductors are those outside the chip only.Doesnt mean bulk alone.Usually due to space...
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    matlab for antenna design

    both fortran and matlab codes r der..
  14. N

    matlab for antenna design

    u can use balanis.is a perfect book for studying antenna theory
  15. N

    radiation pattern of dipole using method of moments

    cn anyone help me getting the radiation pattern of a dipole??I'm using method of moments.With that i got current distributions.I used piecewise sinusoidal functions.After that i've to plot the radiation pattern.I'm getting differnt value of current for same regions as i'm using the overlapping...
  16. N

    help me how i can plot equation e,g:Q= (Im(1/Y11))/(Re(1/Y11))

    u can use HFSS.In that write the equation where it is to be plotted
  17. N

    Free software for simple dipole antenna simulation

    u can use HFSS also..simple dipole tutorial are available.But to understand i would suggest u to design with MATLAB.rather not difficult lso

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