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http://dx.doi.org/10.13067/JKIECS.2015.10.9.987

A Study on the Improvement of MIMO Antenna Isolation for Mobile Applications  

Yoon, In-Seop (인하대학교 전자공학과)
Yan, Xiao-Jia (인하대학교 전자공학과)
Kim, Sang-Uk (인하대학교 전자공학과)
Jo, Yun-Hyun (인하대학교 전자공학과)
Park, Hyo-Dal (인하대학교 전자공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.10, no.9, 2015 , pp. 987-992 More about this Journal
Abstract
In this paper, neutralization line structure have been employed to improve the isolation between the MIMO antenna system. The proposed MIMO antenna size is $116mm{\times}64mm{\times}5mm$ and designed on FR-4(${\varepsilon}r=4.4$) ground substrate. Neutralization line was applied to enhance isolation between the each antenna elements. The fabricated antenna satisfied a VSWR below 3 in LTE band B13 and the isolation between the MIMO antenna system is presented below -15dB. On the H-plane, antenna shows an omnidirectional pattern. In LTE band B13, the antenna presents a gain of a -2.6dBi ~-1.18dBi and radiation efficiency of 33.49% ~ 46.45%. Comparing measurement result with the outcome of simulation, the proposed MIMO antenna is expected to be applied for mobile application.
Keywords
MIMO Antenna; Neutralization Line; LTE B13; Isolation;
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