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Type: Posts; User: fparveen

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  1. Closed: Re: Laptop RAM upgrade (new RAM doesn't work in RVS slot, but works in STD slot)

    I see. CL refers to Latency, right? So, does that mean the STD slot and the RVS slot have different CL? Then how is the old RAM working in both slots, while the new RAM is working only at STD slot?
  2. Closed: Re: Laptop RAM upgrade (new RAM doesn't work in RVS slot, but works in STD slot)

    Yes when I opened the laptop, the RAM slots had DDR4 written on them. And also my new DDR4 RAMs are working on the slot marked as std. So this model supports DDR4.
  3. Closed: Microwave signal transmission: shortest path or shortest time?

    Hello,

    I have an antenna emitting microwave radiation and a multi-layered brain model in front of it having a tumor. For calculating round trip travel time of the microwave signal to-and-from the...
  4. Closed: Re: Phase Noise Measurement using spectrum analyzer (PLL technique)

    Thank you very much for your reply. However, I don't have access to any Phase Noise Analyzer. I have the spectrum analyzer R&S FSL in the Lab which I need to use to measure phase noise. I understand...
  5. Closed: Re: Laptop RAM upgrade (new RAM doesn't work in RVS slot, but works in STD slot)

    Hello,

    I checked the maximum RAM allowance in my Laptop, which is 16GB. Would you please tell me how can I change the BIOS option for getting both of the new RAMs work?

    Thanks.
  6. Closed: Laptop RAM upgrade (new RAM doesn't work in RVS slot, but works in STD slot)

    Hello,

    I have a HP laptop (model: 15-ay013dx) with 6GB RAM installed in it. I wanted to upgrade it to 16GB. So, I bought two 8GB DDR4 RAMs. However, after I replaced both of the pre-installed RAMs...
  7. Closed: Phase Noise Measurement using spectrum analyzer (PLL technique)

    Hello,

    I am planning to measure the phase noise of a VCO using PLL technique using spectrum analyzer model # R&S FSL (9kHz - 3GHz).

    My question is what should i look for in the spectrum...
  8. Closed: How to plot continuous color plot in matlab representing a 2D array

    Hello,

    I am trying to plot a 2D matrix for image reconstruction of head interior. I am using matlab contourf function. But the color plot doesn't look so good to me. Is there any suggestion for...
  9. Closed: How to reduce mesh density in HFSS to reduce the simulation time?

    Hello All,

    I am simulating a head model in HFSS (driven modal) which has a total volume (rad box volume) of 1648440mm^3 or 1648 cm^3. I am using intel core i5 with 6GB RAM. However, I am unable...
  10. Closed: Re: Do I need HSpice RF for transient simulation on a vivaldi antenna exported from H

    Thanks. Did you mean multiplying the gaussian with a sinusoid? I think that can shift the pulse to the center freq (2.5GHz). But how can I get the desired frequency span (1-4GHz)?
    Also, how can I...
  11. Closed: Re: Do I need HSpice RF for transient simulation on a vivaldi antenna exported from H

    I found ways to do time domain analysis by exciting the antenna with gaussian pulse in HFSS. The procedure is explained nicely here >> https://scholarworks.uark.edu/eleguht/49/
    This thesis explains...
  12. Closed: Do I need HSpice RF for transient simulation on a vivaldi antenna exported from HFSS?

    Hi,

    I have designed a vivaldi antenna in HFSS using driven modal setup. The antenna's S11, radiation pattern, surface current distribution and gain looks good. Now I need to perform transient...
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    Closed: Re: HFSS Transient analysis of Vivaldi antenna

    Thanks PlanarMetamaterials for indicating the word 'intersecting'.

    Yes, I had two terminals for each port. However, previously my port height was exactly the same as the substrate thickness. So,...
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    Closed: Re: HFSS Transient analysis of Vivaldi antenna

    Hi,

    Thanks for replying. Since, I am trying to do transient simulation, I had to select the 'driven transient' solution type. I followed the procedure described in the HFSS guide attached with my...
  15. Replies
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    Closed: HFSS Transient analysis of Vivaldi antenna

    Hi,

    I am trying to do transient analysis of two antipodal vivaldi antennas placed side-by-side using HFSS, to see the ability of the antenna to transmit and receive signals without distortion. I...
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