Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (10): 2124-2127.doi: 10.3969/j.issn.1001-506X.2010.10.23

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Methods for directivity enhancement of micro-patch antenna by using dielectric superstrata

LI Yanfei，LU Guizhen   

  1. Information Engineering School, Communication Univ. of China, Beijing 100024, China
  • Online:2010-10-10 Published:2010-01-03

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Abstract:

A systematic design methodology for enhancing the directivity of microstrip patch antennas (MPA) is presented, in which MPA is used as an exciter of a Fabry-Perot (FP) resonant cavity. Simulation results show that after using dielectric superstrata as covers for the MPA, the directivity can be enhanced by almost 11dB over that one without the superstrata, and directivity can be further enhanced 1dB using graded superstrata compared with that using the uniform dielectric superstrata. Finally, the aperture efficiency of the superstrata is analyzed.

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