Worst-Case Estimate of Envelope Correlation Coefficient for Small MIMO Mobile Antennas Below 1 GHz

Title
Worst-Case Estimate of Envelope Correlation Coefficient for Small MIMO Mobile Antennas Below 1 GHz
Author
최재훈
Keywords
ECC; MIMO Systems; Mobile Antenna; Pattern Diversity; Radiation Pattern
Issue Date
2015-01
Publisher
The Korean Institute of Electromagnetic Engineering and Science
Citation
Journal of Electromagnetic Engineering and Science, v. 15, NO 1, Page. 44-52
Abstract
A worst-case estimate of an envelope correlation coefficient (ECC) is obtained for small multiple-input multiple-output (MIMO) mobileantennas operating below 1 GHz. The worst-case estimate is numerically derived in this paper using spherical and exponential wavefunctions. The derived result confirms that the worst-case ECC can be easily obtained from the rotation angle between the radiationpatterns of two MIMO elements, which are attained directly from the amplitude of 2D electric field patterns without any additionalphase and polarization information. As a practical example, MIMO mobile antennas with different antenna element arrangements arecompared to verify the validity of the proposed worst-case estimate. Moreover, based on these analyses, we also suggest an effectiveapproach to reduce the ECC of a small MIMO mobile antenna operating below 1 GHz by properly locating the antenna elements tomake the radiation patterns perpendicular to each other.
URI
http://hdl.handle.net/20.500.11754/21589http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=E1ELAT_2015_v15n1_44
ISSN
2234-8409
DOI
10.5515/JKIEES.2015.15.1.44
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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