SAR규격을 만족하는 우수한 격리도의 소형 계단구조 광대역 MIMO 안테나

다국어 초록 (Multilingual Abstract)

This paper proposes a novel compact MIMO antenna which has miniaturized radiators and their row correlation coefficient, working for the LTE mobile communication, and its SAR is observed. Each of the proposed radiators has a shape of staircase and the bandwidth is twice larger than the conventional PIFA as 600MHz(21%) in 2.5 GHz - 3.15 GHz. And the area of the radiators is 16.5mm ⅹ 9.7mm proper for a handheld device. Also, by adding a planar mushroom decoupling structure between the radiators, the isolation is improved. The design has been carried out using the commercial full-wave time-domain EM solver and the finalized MIMO antenna has the return loss less than -10 dB in the LTE band, the isolation better than 20 dB and the efficiency more than 90% with the gain of 4.3 dB. Regarding the SAR of the antenna, it is observed that the average SAR value of 1g is estimated as 1.37W/Kg, which is lower than the SAR standard.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 본론
• 3. SAR의 관찰
• 4. 결론
• References

참고문헌 (Reference)

1 목세균, "다이버시티 안테나의 소형화와 격리도 향상을 위한 미앤더 선로와 개방형 루프가 결합된 방사구조의 설계" 대한전기학회 61 (61): 110-116, 2012

2 Seongryong Yoo, "The design of CRLH-based compact LTE MIMO antennas" 2012

3 X. Wang, "Pattern and Polarization Diversity AntennaWith High Isolation for Portable Wireless Devices" 8 : 209-211, 2009

4 A. K. Mak, "Isolation Enhancement Between Two Closely Packed Antennas" 56 : 3411-3419, 2008

5 Kyungseok Kahng, "Increased Number of MIMO Handset Antennas" 22 (22): 2012

6 K. Payandehjoo, "Employing EBG Structures in Multiantenna Systems for Improving Isolation and Diversity Gain" 8 : 1162-1165, 2009

7 Kyungseok Kahng, "Design of a Metamaterial CRLH ZOR Compact MIMO Antenna and its Tunability Technique" 21 (21): 2011

8 Kyungseok Kahng, "Design of Four MIMO Handset Antennas" 723-725, 2013

9 S. Yoo, "Compact MIMO Antenna of the Open-Loop and Meandered Line 1-Layer Radiators with Improved Isolation" 2012

10 S. Kahng, "A small antenna for the handheld device using a split-ring inspired resonator with tunability" 2011

11 S. Yoo, "A Compact MIMO Antenna using ZOR Split Ring Resonator Radiators with a Decoupling Structure" 54 (54): 26-30, 2011

12 Chi-Yuk Chiu, "24-Port and 36-Port antenna cubes suitable for MIMO wireless communications" 1170-1176, 2008