Capacity analysis of compact MIMO system

Author

Zhang, Jing ; Zhu, Hong Bo ; Cai, Yan

Author_Institution

Key Lab. of Wireless Commun. of Jiangsu Province, Nanjing Univ. of Posts & Telecommun., Nanjing, China

fYear

2009

fDate

8-10 Oct. 2009

Firstpage

3

Lastpage

7

Abstract

Mutual coupling effect affects capacity of compact MIMO system. Using scattering parameter matrix (S-Matrix), this paper analyzes capacity of compact MIMO system and makes simulations on capacity using three different structural antenna arrays and three matching networks. Numerical results based on method of moment (MOM) show that antenna space with half wavelength is the dividing point of tightly coupling and loose coupling. Polarization pattern and matching network can change the impact of coupling effect on capacity. Furthermore it indicates that multiport conjugate (MC) matching network is the best to reduce mutual coupling effect as well as enhance capacity of compact MIMO system. As to the antenna array, cross polarization does help to improve the capacity of compact MIMO system.

Keywords

MIMO communication; S-parameters; antenna arrays; channel capacity; method of moments; polarisation; S-Matrix; capacity analysis; compact MIMO system; cross polarization; method of moment; multiport conjugate matching network; mutual coupling effect; polarization pattern; scattering parameter matrix; structural antenna arrays; Antenna arrays; Light scattering; MIMO; Microwave theory and techniques; Mutual coupling; Polarization; Receiving antennas; Transmitting antennas; Voltage; Wireless communication; capacity; compact MIMO system; matching network;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2009. APCC 2009. 15th Asia-Pacific Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-4784-8

Electronic_ISBN

978-1-4244-4785-5

Type

conf

DOI

10.1109/APCC.2009.5375700

Filename

5375700