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http://dx.doi.org/10.5515/KJKIEES.2009.20.5.428

U-slot Microstrip Antenna with U-shaped Parasitic Patches  

Kim, Ji-Hyung (Department of Electrical Engineering, Ajou University)
Oh, Don-Jin (Department of Electrical Engineering, Ajou University)
Park, Ik--Mo (Department of Electrical Engineering, Ajou University)
Park, Yong-Bae (Department of Electrical Engineering, Ajou University)
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Abstract
In this paper, we propose an U-slot microstrip antenna with the U-shaped parasitic patches. U-slot and parasitic patches make two resonant frequencies and one additional resonant frequency, respectively, so that the impedance band-width of the antenna is expanded. The size of radiator part is $64{\times}53\;mm^2$ and the entire size of the antenna is $150{\times}150{\times}11.5\;mm^3$. The measured bandwidth is $1.85{\sim}2.40\;GHz$. Thus, our antenna can be used for DCS1900, WCDMA and WiMax services. The radiation characteristic is almost same in the bandwidth, the beam width is about $60^{\circ}$, and the gain is more than 7 dBi.
Keywords
Microstrip Antenna; U-Slot; Parasitic Patch;
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Times Cited By KSCI : 2  (Citation Analysis)
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