High gain microstrip antennas loaded with high characteristic impedance superstrates

@article{Attia2011HighGM,
  title={High gain microstrip antennas loaded with high characteristic impedance superstrates},
  author={Hussein Attia and Leila Yousefi and Omar M. Ramahi},
  journal={2011 IEEE International Symposium on Antennas and Propagation (APSURSI)},
  year={2011},
  pages={1258-1261}
}
It is shown that, under some resonance conditions, a microstrip patch antenna can be designed to achieve the highest possible gain when covered with a superstrate at the proper distance in free space. The transmission line analogy and the cavity model are used to deduce the resonance conditions required to achieve the highest gain. The resonance conditions include the condition on spacing between the antenna's substrate and the superstrate and the thickness of the superstrate. The permeability… CONTINUE READING