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Lab 03 ReportAnthony Trautman
Spring ‘16
Antenna Theory
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Feedline Width
Calculate the resonant frequency of the antenna using TL model
Solving for f = 3.267 GHz
Width of feedline = 3mm
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Create substrate
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Create Patch Antenna
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Simulate Frequency Response
7.28 cm
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Simulate Frequency Response
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3D Gain Pattern at Resonance w/ params
Gain=5.7dBi
Radiates in z_hat
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New Feedline Width
Calculate the resonant frequency of the antenna using TL model
L=32.9 mm
W=1.9mm
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Create substrate
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Create Patch Antenna (4.3)
Feed strip
2.1x25 mm
Inset
13.6mm
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3D Gain Pattern at Resonance w/ params (4.3)
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Vary the Dielectric Constant
Dielectric Constant Peak Gain -10dB Bandwidth Resonant Freq
4.3 5.64 ~100Mhz 2.095GHz
6 5.80 ~50MHz 1.786 GHz
10 5.24 n/a 1.394 GHz
Based on formula 14-4 above it is expected that the resonant frequency decreases when everything is held the
same. Peak Gain and -10dB bandwidth are changing because the patch antenna was not tuned to account for theshift in resonant frequency. I do not suspect the Gain or Bandwidth to change very much if it were tuned properly.