Internal PIFA for 2.4/5 GHz WLAN applications

Abstract

An internal planar inverted-F antenna (PIFA) for 2.4 GHz Bluetooth and 5 GHz WLAN applications is presented. The proposed antenna has an impedance bandwidth of 110 MHz in Bluetooth band and 900 MHz near 5 GHz in WLAN band within 2:1 VSWR, and an approximately omnidirectional radiation pattern can be obtained. These features are suitable for 2.4/5 GHz WLAN applications.