TY - GEN
T1 - Design of broadband MIMO antenna based on common and differential mode (CM/DM) method
AU - Peng, Zhe
AU - Xue, Zhenghui
AU - Ren, Wu
AU - Li, Weiming
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - The common and differential mode (CM/DM) method indicates that when the odd mode impedance and common mode impedance of a dual-antenna system are the same, the two antennas achieve the best isolation. In this paper, a broadband MIMO antenna based CM/DM method is proposed. By transforming the magnetoelectric dipole (ME) prototype antenna with differential feed into a dual antenna, the odd mode impedance of the broadband can be obtained. By replacing the electric dipole with a folded dipole and adjusting the parameters appropriately, the bandwidth of DM impedance is broadened. The final dual antenna system achieves isolation of more than 15dB in about 44% of the bands and S11 is less than -8dB, and the gain in band is around 6dB. The working band of this antenna covers three popular bands: N77, N78 and N79. It is expected to be used in the future 5G communication.
AB - The common and differential mode (CM/DM) method indicates that when the odd mode impedance and common mode impedance of a dual-antenna system are the same, the two antennas achieve the best isolation. In this paper, a broadband MIMO antenna based CM/DM method is proposed. By transforming the magnetoelectric dipole (ME) prototype antenna with differential feed into a dual antenna, the odd mode impedance of the broadband can be obtained. By replacing the electric dipole with a folded dipole and adjusting the parameters appropriately, the bandwidth of DM impedance is broadened. The final dual antenna system achieves isolation of more than 15dB in about 44% of the bands and S11 is less than -8dB, and the gain in band is around 6dB. The working band of this antenna covers three popular bands: N77, N78 and N79. It is expected to be used in the future 5G communication.
UR - http://www.scopus.com/inward/record.url?scp=85132968447&partnerID=8YFLogxK
U2 - 10.1109/iWEM53379.2021.9790537
DO - 10.1109/iWEM53379.2021.9790537
M3 - Conference contribution
AN - SCOPUS:85132968447
T3 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2021 - Proceedings
BT - IEEE International Workshop on Electromagnetics
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2021
Y2 - 28 November 2021 through 30 November 2021
ER -