Antenna design for 4-by-4 MIMO communication

This paper presents the physical implementation of an antenna system for 4-by-4 MIMO communication. Considering the size of the typical antenna for LTE-band wireless communication, it is very difficult to increase the number of the radiators more than two and integrate them in a limited volume of the smart phone. To circumvent this difficulty, compact radiators are designed based on the zeroth-order effect and placed in their vicinity. At the same time, these antenna elements are decoupled through the trapping structure for a high isolation. Further, a pair of chip antennas is developed and put together with the zeroth-order antennas, while all the radiating elements have good isolation performances, which is one of the key-factors to the MIMO system.

[1]  R. Abhari,et al.  Employing EBG Structures in Multiantenna Systems for Improving Isolation and Diversity Gain , 2009, IEEE Antennas and Wireless Propagation Letters.

[2]  R. Murch,et al.  Isolation Enhancement Between Two Closely Packed Antennas , 2008, IEEE Transactions on Antennas and Propagation.

[3]  Kwai-Man Luk,et al.  Pattern and Polarization Diversity Antenna With High Isolation for Portable Wireless Devices , 2009, IEEE Antennas and Wireless Propagation Letters.

[4]  Seong-Ook Park,et al.  Compact Antenna Array With Port Decoupling for LTE-Standardized Mobile Phones , 2009, IEEE Antennas and Wireless Propagation Letters.

[5]  M. S. Sharawi,et al.  An 800 MHz 2$\,\times\,$ 1 Compact MIMO Antenna System for LTE Handsets , 2011, IEEE Transactions on Antennas and Propagation.

[6]  Jaehoon Choi,et al.  MIMO antenna using a decoupling network for next generation mobile application , 2009, 2009 9th International Symposium on Communications and Information Technology.