Introduction to Planar Antennas

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Introduction toPlanar Antennas
Zbynek Raida
Dept. of Radio ElectronicsBrno University of
TechnologyBrno, Czechia
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Outline

• Patch antennaSimple antenna design
• Feeding patch antennamicrostrip line, coaxial
  probe, aperture
• Multiband patch antennaModal versus full-wave
  analysis

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Conventional patch
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Conventional patch design

• Width of the patch

• Wavelength on the substrate

• Effective permittivity

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Conventional patch design

• Length of the patch

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Patch microstrip feeder

• Auxiliary constants

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Patch microstrip feeder

• Microstrip transmission line

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Patch microstrip feeder
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Patch SIW aperture
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Multiband antennas
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Multiband antennas

• Modal analysis

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Multiband antennas

• Full-wave analysis

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Multiband antennas
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Multiband
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Circular polarization
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Circular polarization