bahareh mansouri

In this paper, a new design of multiband microstrip U-shaped PIFA antennas is proposed. The antenna has a U-shaped patch on a substrate with dielectric constant of ۳ and is shorted to the ground plane through two shorting walls. The antenna operates in three separated frequency bands including ۱.۱۶-۱.۲۴ GHz, ۲.۳۷-۲.۴۴ GHz and ۳.۶۵-۳.۷۵ GHz. That is suitable for wireless frequency bands applications. The first frequency band of antenna is used for wireless video links and wireless video transmitters. The second and third frequency bands are usable for Wi-Fi, Wireless Local Area Network (WLAN) and Bluetooth bands. A slot has been designed on the ground plane to improve radiations at ۲.۴ GHz and to enhance the bandwidth of the antenna at resonance frequencies

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