Dual - and Triple - Band U - slot Microstrip Patch Antenna for WLAN Applications
نویسندگان
چکیده
In this paper, Microstrip patch antenna fed through an aperture coupled 50Ω microstrip line is designed for dualband and tripleband applications by cutting U-slots in the patch. When a U-slot is cut in the patch, a notch is introduced within the matching band, results in dualband antenna. If another U-slot is cut in the same patch, antenna becomes a tripleband antenna. For better coupling aperture in ground is of U-shape. The patch antenna has been designed and simulated in CST Microwave Studio. The dualband antenna resonates at 3.6GHz and 5.2 GHz whereas tripleband antenna resonates at 3.6 GHz, 5.2 GHz and 5.8 GHz. For U-slot dualband antenna, the directivity of 6.345 dBi and 5.725 dBi is obtained at lower resonant frequency 3.6 GHz and upper resonant frequency 5.2 GHz respectively. Uslot triple band antenna shows 6.103 dBi, 6.371 dBi and 5 dBi directivity at lower resonant frequency 3.6 GHz, middle resonant frequency 5.2 GHz and upper resonant frequency 5.8 GHz respectively. The proposed antenna is used for WLAN applications.
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