Ultrawideband MIMO/Diversity Antennas With a Tree-Like Structure to Enhance Wideband Isolation

作者：Zhang Shuai^*; Ying Zhinong; Xiong Jiang; He Sailing

来源：IEEE Antennas and Wireless Propagation Letters, 2009, 8: 1279-1282.

DOI：10.1109/LAWP.2009.2037027

• Diversity
• isolation
• multiple-input-multiple-output (MIMO)
• ultrawideband (UWB) antennas

A compact printed ultrawideband (UWB) multiple-input-multiple- output (MIMO)/diversity antenna system (of two elements) with a size of 35 40 mm operating at a frequency range of 3.1-10.6 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 3.1-10.6 GHz. The radiation patterns, gain, and envelope correlation coefficient are also measured. The proposed antenna is suitable for some portable MIMO/diversity applications.

• 出版日期2009
• 单位浙江大学