volume | PIER Journals

2014-08-11

Dual-Band MIMO Antenna with High Isolation Application by Using Neutralizing Line

Jie-Huang Huang,

Dr. Jie-Huang Huang

Institute of Communications Engineering

National Chiau-Tung University

Taiwan, R. O. C.

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Wen-Jiun Chang,

Dr. Wen-Jiun Chang

Institute of Communications Engineering

National Chiau-Tung University

Taiwan, R. O. C.

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Christina F. Jou

Dr. Christina F. Jou

Institute of Communication Engineering

National Chiao-Tung University

Taiwan

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Progress In Electromagnetics Research Letters, Vol. 48, 15-19, 2014

doi:10.2528/PIERL14053003

Abstract

In this letter, a dual-band Multiple Input Multiple Output (MIMO) antenna system with high isolation is presented. This design consists of two dual-band monopole antennas and neutralizing transmission line. For each antenna element, the operating frequency band covers from 2.4 GHz to 2.6 GHz and 5.2 GHz to 6 GHz. To improve the isolation between these two antenna elements spacing only 0.1225 λ₀ at 2.45 GHz, a neutralization decoupling transmission line is introduced. The measured return loss results of these two antennas are better than 10-dB in operating frequency band. The measured isolation between the two antennas is better than 15 dB. The envelope correlation coefficient (ECC) is smaller than 0.01 of whole operating frequency band. The peak gain of this design is better than 2 dBi in operating bands. This configuration can be applied for Wireless local area network (WLAN) and Bluetooth (BT) communication system.

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Jie-Huang Huang, Wen-Jiun Chang, and Christina F. Jou, "Dual-Band MIMO Antenna with High Isolation Application by Using Neutralizing Line," Progress In Electromagnetics Research Letters, Vol. 48, 15-19, 2014.
doi:10.2528/PIERL14053003

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