Title :
Ultrawideband MIMO/Diversity Antennas With a Tree-Like Structure to Enhance Wideband Isolation
Author :
Zhang, Shuai ; Ying, Zhinong ; Xiong, Jiang ; He, Sailing
Author_Institution :
Centre for Opt. & Electromagn. Res., Zhejiang Univ., Hangzhou, China
fDate :
7/1/1905 12:00:00 AM
Abstract :
A compact printed ultrawideband (UWB) multiple-input multiple-output (MIMO)/diversity antenna system (of two elements) with a size of 35 ?? 40 mm2 operating at a frequency range of 3.110.6 GHz is proposed. The wideband isolation can be achieved through a tree-like structure on the ground plane. The effectiveness of the tree-like structure is analyzed. Measured S-parameters show that the isolation is better than -16 dB (-20 dB in most of the band) across the UWB of 3.110.6 GHz. The radiation patterns, gain, and envelope correlation coefficient are also measured. The proposed antenna is suitable for some portable MIMO/diversity applications.
Keywords :
MIMO communication; S-parameters; antenna radiation patterns; microstrip antennas; ultra wideband antennas; S-parameters; compact printed antenna; diversity antennas; radiation patterns; tree-like structure; ultrawideband MIMO antenna; wideband isolation; Diversity; isolation; multiple-input–multiple-output (MIMO); ultrawideband (UWB) antennas;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2037027
