Impact of current localization on the performance of compact MIMO antennas

H. Li*, B. K. Lau, Y. Tan, S. He, Z. Ying

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

9 Citations (Scopus)

Abstract

In this paper, we study the influence of current localization on the isolation between two antennas in a compact terminal setting. The two antennas are chosen to be a monopole and a PIFA. The degree of current localization is controlled by the permittivity value of the PIFA's dielectric loading. Both lossless and lossy cases are simulated in order to ascertain the underlying performance impact from current localization and its potential use in real implementation. Our results show that significant isolation enhancement is achieved with more localized currents. Moreover, the technique improves the terminal's diversity and capacity performance both at the center frequency and over a given bandwidth. In addition, PIFAs with dielectric loadings of higher permittivity values and more localized currents are physically smaller. Antenna prototypes are fabricated, and the measured results agree well with the simulated results.

Original languageEnglish
Title of host publicationProceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011
Number of pages4
Publication date2011
Pages2423-2426
Article number5781924
ISBN (Print)9788882020743
Publication statusPublished - 2011
Externally publishedYes
Event5th European Conference on Antennas and Propagation, EUCAP 2011 - Rome, Italy
Duration: 10 Apr 201115 Apr 2011

Conference

Conference5th European Conference on Antennas and Propagation, EUCAP 2011
Country/TerritoryItaly
CityRome
Period10/04/201115/04/2011
SeriesProceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011

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