Antenna
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Antenna

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Antenna Antenna Presentation Transcript

  • Presentation
    Antenna Engineering
    In Topic
    Design Of Square Patch Microstrip Antenna for
    Circular Polarization Using IE3D Software
  • By
    Mr. Anon Mosuwan 51-3506-016-7
    &
    Mr. PratanSrikamonpattanawut51-3506-030-8
    ENET R-41
  • Abstract
    Communication between humans was first by sound through voice. With the desire for slightly more distance communication came, devices such as drums, then, visual methods such as signal flags and smoke signals were used. These optical communication devices, of course, utilized the light portion of the electromagnetic spectrum. It has been only very recent in human history that the electromagnetic spectrum, outside the visible region, has been employed for communication, through the use of radio. One of humankind’s greatest natural resources is the electromagnetic spectrum and the antenna has been instrumental in harnessing this resource.
    View slide
  • Aim and Objective
    Microstrip patch antenna used to send onboard parameters of article to the ground while under operating conditions. The aim of the report is to design and fabricate a probe-fed Square Microstrip Patch Antenna and study the effect of antenna dimensions Length (L),and substrate parameters relative Dielectric constant (εr), substrate thickness (t) on the radiation parameters of Bandwidth and Beam-width.
    View slide
  • Design of Square Patch Microstrip Antenna for Circular Polarization using IE3D Simulator
    Given specifications were,
    1. Dielectric constant (εr) = 2.55
    2. Frequency (fr) = 3.0 GHz.
    3. Height (h) = 1/16 Inch = 1.59 mm.
    4. Velocity of light (c) = 3×108 ms-1 .
    5. Practical width (W) , W = 30 mm.
    6. Loss Tangent (tan δ) = 0.001.
    7. Practical Length (L) L = 30 mm.
  • 1. Start Zeland Program Manager.
  • 2. Click on M-Grid().
  • 3. Go to File>>>New and then press ()
  • 4. Define Substrate Parameters and then click “OK”
  • 5. Click “OK” again for go to M-Grid window
  • 6. Click on Entity >>> Rectangle .
  • 7. Define the parameter follow below figure
  • 8. After step 7. you will see this figure
  • 9. Press “shift+A “ for define X and Y coordinate of Probe feed
  • 10. After 9 step you’ll see this below figure
  • 11. Press “shift+A “ again for define second X and Y coordinate of Probe feed
  • 12. After 11 step you’ll see this below figure
  • 13. Go to Entity >>> Probe-Feed to Patch
  • 14. Define the parameter follow below figure
  • 15. You’ll see this below figure
  • 16. Go to Process >>> Simulate… and then define the parameter follow this below figure
  • 17. Enter Frequency Rang for simulate
  • 18. After 17 step the window will show this below figure and then click “OK” for start the simulation
  • 19. After the simulation S parameter dB[s(1,1)]
  • 20. After the simulation S parameter dB[s(2,2)]
  • 21. After the simulation VSWR Port 1
  • 22. After the simulation VSWR Port 2
  • 23. After the simulation Smith Chart S(1,1)
  • 24. After the simulation Smith Chart S(2,2)
  • 25. After the simulation Current Distribution
  • 26. After the simulation Elevation Pattern Gain Display
  • 27. After the simulation Total Field Gain vs. Frequency
  • 28. After the simulation Axial-Ratio vs. Frequency
  • Comparison when change Dielectric constant (εr) from 2.55 to be 10
  • 1. Comparison S(1,1) Parameter
    Before
    After
  • 2. Comparison S(2,2) Parameter
    Before
    After
  • Before
    After
    3. Comparison VSWR port 1
  • Before
    After
    4. Comparison VSWR port 2
  • Before
    After
    5. Comparison Smith Chart S(1,1)
  • Before
    After
    6. Comparison Smith Chart S(2,2)
  • Before
    After
    7. Comparison 3D Distribution
  • Before
    After
    8. Comparison Elevation Pattern Gain Display
  • Before
    After
    9. Comparison Total Field Gain vs. Frequency
  • Before
    After
    10. Comparison Axial-Ratio vs. Frequency
  • Comparison when change Practical width (W) from 30 mm to be 60 mm andPractical Length (L)from 30 mm to be 60 mm
  • 1. Comparison S(1,1) Parameter
    Before
    After
  • 2. Comparison S(2,2) Parameter
    Before
    After
  • Before
    After
    3. Comparison VSWR port 1
  • Before
    After
    4. Comparison VSWR port 2
  • Before
    After
    5. Comparison Smith Chart S(1,1)
  • Before
    After
    6. Comparison Smith Chart S(2,2)
  • Before
    After
    7. Comparison 3D Distribution
  • Before
    After
    8. Comparison Elevation Pattern Gain Display
  • Before
    After
    9. Comparison Total Field Gain vs. Frequency
  • Before
    After
    10. Comparison Axial-Ratio vs. Frequency
  • Question ?
  • Thank you for attention our presentation
    (^_^)