COMBINED-TYPE TRIPLE-WIDEBAND LTE TABLET COMPUTER ANTENNA

A combined-type triple-wideband tablet computer antenna covering the long term evolution (LTE) operation in the 698-960 MHz (low band), 1710-2690 MHz (middle band), and 3400-3800 MHz (high band) is presented. The antenna is formed by an inverted-F antenna (IFA) covering the LTE low band and a coupled-fed loop antenna covering the LTE middle and high bands. The IFA (low-band antenna) and coupled-fed loop antenna (middle/high-band antenna) are easily combined into a compact structure to occupy a small ground clearance of 10 3 30 mm(2) and a thin thickness of 3 mm. Details of the antenna structure are described in this study. Working principle of the antenna to achieve the LTE triple-wideband operation through combining the low-band antenna and the middle/high-band antenna is addressed. Experimental results of the fabricated antenna are also presented and discussed. (C) 2015 Wiley Periodicals, Inc.