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Type: Posts; User: ateet101

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    Closed: 100MHz - 1GHZ Bowtie Antenna

    Is there a way to design a flat bowtie antenna from 100MHz to 1GHz? When I design using CST, I can't cover the whole bandwidth no matter how big i make the antenna. The only way it covers more...
  2. Closed: Circular Polarized Antenna Gain Measuement

    I built a CP antenna and would like to find the gain of it. I have a 2 linearly polarized horn antennas, which have known gain.
    My technique in an anechoic chamber:
    The horn is placed 35 inches...
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    Closed: Why am I receiving big Gain differences

    Hi,

    I have the following 3 antennas:
    Tunable dipole: tuned to 375MHz for my measuements with known Gain
    Broadband Dipole: 200-500MHz unknown Gain
    UHF antenna: 240-380MHZ unknown Gain

    I put...
  4. Closed: Vertical and Horizontal Oriented Difference?

    Hi,

    I have the following 2 antennas:
    Tunable dipole: tuned to 375MHz for my measuements
    Broadband Dipole: 200-500MHz

    I put the antennas in an anechoic chamber 3 meters from each other. First,...
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    Closed: Discone Antenna with 4NEC2

    I am new to 4NEC2 simulating software and am trying to create a 30-512MHz discone antenna.

    First, is it possible to create a discone with such a large bandwith?

    Second, I have designed a...
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    Closed: 30-512MHz 4nec2 Discone Design help?

    I am trying to build a discone and a bicone antenna using 4nec2 simulating software. I tried to read several different books on the subject, but am still confused. How do you know how many cone and...
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    [SOLVED]Closed: (4nec2) errors what do they mean?

    I receive the following errors and I don't know what they mean. I am currently working with 512MHz, but I also want to complete frequency sweep of 30 - 512 MHz

    Warn.: Wire 17 (tag 18), seg-len (...
  8. Closed: CST Simulation not matching network analyzer

    I created a dipole antenna in CST and built it by hand using componants in my lab. The problem is that when I use the network analyzer to measure the impedance and VSWR, the results are not the same...
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    Closed: Polar Plot in Matlab

    Hi,

    I used a anechoic chamber to rotate a transmitting antenna from 0 to 360 with 2 degrees in between. I received gain at every two degrees for my antenna. Does anyone have an idea on how to...
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    Closed: Polar Plot in Matlab

    Hi,

    I used a anechoic chamber to rotate a transmitting antenna from 0 to 360 with 2 degrees in between. I received gain at every two degrees for my antenna. For example at 2 deg I received -64dB...
  11. Closed: Re: How to measure Axial Ratio from 2 Circular polarized antennas?

    one of them is under test and the other is a reference
  12. Closed: How to measure Axial Ratio from 2 Circular polarized antennas?

    I have created two circular polarized antennas and was wondering how I can measure the Axial Ratio using the network analyzer? I have already modeled it in CST, but I need to record real-time data I...
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