Title :
A Compact MIMO antenna System with Three Closely Spaced Multi-band Antennas for WLAN Application
Author :
Lin, Ming-Ta ; Chung, Shyh-Jong
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu
Abstract :
In this paper, a MIMO antenna system is designed for multi-band Wireless local area network (WLAN) application with standards of IEEE 802.11a/b/g/j. As shown in Fig. 1, three printed antennas, each covering the frequency bands of 2.45, 4.9, 5.25, 5.75 GHz, are designed in a compact area of 1 x h = 48mm x 28mm, which is a suitable size for PC card application. The measurement results show 10-dB return loss with bandwidth more than 350 MHz in the 2.45 GHz frequency band and more than 1.2 GHz in the 5 GHz frequency band. In addition, the radiation pattern of these antennas is complementary in all directions to realize pattern diversity. The coupling between any two of these antennas is below -8.5 dB. The proposed antenna has the properties of good performance, compact size, low profile, and low cost. Hence, it is suitable for practical MIMO applications in a WLAN system.
Keywords :
MIMO communication; antenna radiation patterns; microstrip antennas; wireless LAN; MIMO antenna system; WLAN application; antenna radiation pattern; frequency 2.45 GHz; frequency 4.9 GHz; frequency 5.25 GHz; frequency 5.75 GHz; loss 10 dB; multiband antennas; multiband wreless local area network; multiple input multiple output system; pattern diversity; printed antenna; Antenna measurements; Antenna radiation patterns; Design engineering; Directive antennas; Frequency measurement; Loss measurement; MIMO; Microwave antennas; Microwave communication; Wireless LAN; PCMCIA; multi-band antennas; open-loop rings;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555117
