ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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A High-Gain Microstrip Patch Array Antenna Using a Superstrate Layer

  • Choi, Won-Kyu (Radio & Broadcasting Research Laboratory, ETRI) ;
  • Cho, Yong-Heui (Division of Information Communication and Radio Engineering, Mokwon University) ;
  • Pyo, Cheol-Sik (Radio & Broadcasting Research Laboratory, ETRI) ;
  • Choi, Jae-Ick (Radio & Broadcasting Research Laboratory, ETRI)
  • Received : 2002.11.26
  • Published : 2003.10.31
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Abstract

A dielectric superstrate layer above a microstrip patch antenna has remarkable effects on its gain and resonant characteristics. This paper experimentally investigates the effect of a superstrate layer for high gain on microstrip patch antennas. We measured the gain of antennas with and without a superstrate and found that the gain of a single patch with a superstrate was enhanced by about 4 dBi over the one without a superstrate at 12 GHz. The impedance bandwidths of a single patch with and without a superstrate for VSWR < 2 were above 11%. The designed $2{\times}8$ array antenna using a superstrate had a high gain of over 22.5 dB and a wide impedance bandwidth of over 17%.

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References

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