Title :
Multiband 4-port MIMO antenna system for LTE700/2300/2500 operation in the laptop computer
Author :
Wei-Yu Li ; Wei-Ji Chen ; Chun-Yih Wu
Author_Institution :
ITRI, Hsinchu, Taiwan
Abstract :
A multiband 4-port MIMO antenna system for LTE700/2300/2500 operation in the laptop computer is presented. It mainly consists of a pair of two-antenna structures symmetrically disposed at right and left upper corners of the supporting metal frame of the laptop display respectively. The proposed two-antenna structure comprises two the same compact antenna designs covering LTE700/2300/2500 bands and orthogonally locating at two adjacent edges of the upper right or left corner. By simply designing a grounded short strip resonator embedded in-between the two nearby compact antenna designs as a higher-band wavetrap and an un-grounded long folded line resonator as a mutual coupling cancellation mechanism for the lower operating band of them, good isolation and low correlation coefficient are obtained between antenna ports of the two-antenna structures over the whole LTE700/2300/2500 bands to achieve a 4-port MIMO antenna system successfully.
Keywords :
Long Term Evolution; MIMO communication; UHF antennas; UHF resonators; antenna arrays; laptop computers; LTE700-2300-2500 operation; frequency 2300 MHz to 2400 MHz; frequency 2500 MHz to 2690 MHz; frequency 704 MHz to 787 MHz; grounded short strip resonator; higher-band wavetrap resonator; laptop computer; laptop display; metal frame; multiband 4-port MIMO antenna system; multiinput multioutput systems; mutual coupling cancellation mechanism; two-antenna structures; ungrounded long folded line resonator; Antenna measurements; Antennas; MIMO; Mutual coupling; Portable computers; Ports (Computers); LTE; MIMO antennas; antennas; laptop computer; multi-band operation;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421857
