A High‐Gain Microstrip Patch Array Antenna Using a Superstrate Layer

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 su...

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Bibliographic Details
Published in:ETRI journal 2003-10, Vol.25 (5), p.407-411
Main Authors: Choi, Wonkyu, Cho, Yong Heui, Pyo, Cheol‐Sik, Choi, Jae‐Ick
Format: Article
Language:English
Subjects:
Antennas
Applied sciences
broadband
Exact sciences and technology
High‐gain
microstrip antenna
Radiocommunications
stacked patch
superstrate layer
Telecommunications
Telecommunications and information theory
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Summary: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 2×8 array antenna using a superstrate had a high gain of over 22.5 dB and a wide impedance bandwidth of over 17%.
ISSN:1225-6463
2233-7326
DOI:10.4218/etrij.03.0102.0002