Compact slotted meandered PIFA versus conventional PIFA antenna for DCS, GPS, Bluetooth/WLAN, 4 G LTE, WiMAX, UMTS, GLONASS applications

摘要

A novel multiband meandered PIFA antenna with a coax feed is proposed, which covers DCS (1710-1880 MHz), UMTS (1920-2170 MHz), Bluetooth/WLAN (2400-2480 MHz), GPS (1227-1575 MHz), WiMAX (2500-2690 MHz). The size of the proposed antenna 20 × 10 × 5.57 mm3 and it is suitable to be used as an internal antenna in mobile phone. In this paper two different antennas constructed, one is conventional PIFA and other is designed by using meandered slots on conventional PIFA. The planar inverted F antenna is most popular internal antenna to be used in mobile phones and other wireless portable devices. However it one of the limitation of narrow bandwidth makes it unsuitable for wireless communication. A conventional PIFA shows very narrow bandwidth and also operates in single frequency band. By creating the two meandered slits on radiating element of conventional PIFA, it improves the characteristics of the proposed antenna. These meandered slots separate the patch into two resonant paths, generating two bands of about 2 GHz and 2.6 GHz. The obtained impedance bandwidth for S11 收起