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Improved aperture-coupled microstrip antenna

Improved aperture-coupled microstrip antenna. By Mohamed Morsy. Aperture coupled antenna. Coplanar Patch Antenna. The coplanar waveguide, compared with the microstrip line, has advantages such as low radiation loss, less dispersion, uniplanar configuration.

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Improved aperture-coupled microstrip antenna

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  1. Improved aperture-coupled microstrip antenna By Mohamed Morsy

  2. Aperture coupled antenna

  3. Coplanar Patch Antenna • The coplanar waveguide, compared with the microstrip line, has advantages • such as low radiation loss, less dispersion, uniplanar configuration

  4. Stacked slot coupled coplanar patch antenna Top view Side View Є1=6.15 , Є2= Є3=2.2

  5. Radiation Pattern

  6. Radiation pattern after increasing the aperture’s length

  7. After adding metal sheet at the bottom substrate

  8. Radiation pattern after adjusting the stub

  9. Radiation pattern after adding metal sheet at the substrate and adjusting the stub match

  10. S11

  11. conclusion • Using coplanar patch antenna is not a good choice in case of aperture coupled microstrip patch antenna • although it has low radiation loss, less dispersion and high efficiency it will act as a reflector to the aperture slot radiation which radiates on both sides of the ground plane resulting in huge amount of back radiation that destroys the antenna functionality • Depending only on stacked slot coupled antenna will give better results in terms of radiation pattern

  12. Future workUsing new innovation of aperture coupled microstrip antenna that gives better radiation pattern

  13. THANKS Merry-Christmas Questions?

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