A quad-band compact PIFA operating in the GSM1800/GSM1900/UMTS/LTE2300/LTE2500/ 2.4-GHz WLAN bands for mobile terminals

摘要

In this paper, a low-profile quad-band planar inverted-F antenna (PIFA) designed to cover the bands of GSM1800 (1710???1880 MHz), GSM1900 (1850???1990 MHz), UMTS (1920???2170 MHz), LTE2300 (2305???2400 MHz), Wi-Fi (2400???2484 MHz) and LTE2500 (2500???2690 MHz) bands has been presented. The antenna element has an area of 2.5??20 mm2 over a small ground plane of size 100??60 mm2. To maintain the small size of the antenna element, folded patch is used and it is etched over the FR4 substrate of 0.7 mm thickness. The antenna is characterized with reflection S-parameter, surface current distributions and radiation patterns.