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Journal Article
A High-Gain Microstrip Patch Array Antenna Using a Superstrate Layer
- Authors
- Won Kyu Choi, Yong Heui Cho, Cheol-Sik Pyo, Jae-Ick Choi
- Issue Date
- 2003-10
- Citation
- ETRI Journal, v.25, no.5, pp.407-411
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- 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 2×8 array antenna using a superstrate had a high gain of over 22.5 dB and a wide impedance bandwidth of over 17%.