Title :
A Printed Dual-Antenna System Operating in the GSM1800/GSM1900/UMTS/LTE2300/LTE2500/ 2.4-GHz WLAN Bands for Mobile Terminals
Author :
Yan Wang ; Zhengwei Du
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A wideband printed dual-antenna system for mobile terminals is presented. The dual-antenna system, consisting of two symmetric antenna elements, is printed on a printed circuit board. The antenna element is an F-like monopole with two grounded branches. The functions of the antenna geometry and the effects of some key parameters on the antenna performance are studied. A prototype shows that the measured -10-dB impedance bandwidth is 1.14 GHz (1.61-2.75 GHz), and the measured mutual coupling is lower than -15 dB at the 1.67-2.75-GHz bands. It covers the GSM1800, GSM1900, UMTS, LTE2300, LTE2500, and 2.4-GHz WLAN bands for the 2G/3G/4G mobile terminals. The radiation patterns are measured, and diversity performances are evaluated.
Keywords :
3G mobile communication; 4G mobile communication; Long Term Evolution; MIMO communication; UHF antennas; antenna radiation patterns; broadband antennas; cellular radio; microstrip antenna arrays; mobile antennas; monopole antenna arrays; multifrequency antennas; wireless LAN; 2.4-GHz WLAN bands; 2G mobile terminals; 3G mobile terminals; 4G mobile terminals; F-like monopole; GSM1800; GSM1900; LTE2300; LTE2500; UMTS; antenna geometry; frequency 1.61 GHz to 2.75 GHz; grounded branches; printed circuit board; radiation patterns; symmetric antenna elements; wideband printed dual-antenna system; Antenna measurements; Antennas; Bandwidth; Impedance; Mobile communication; Mutual coupling; Wireless LAN; Broadband decoupling; grounded branch; multiantenna; multiple-input–multiple-output (MIMO);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2303574
