Common-Loop MIMO Antenna Design With Decoupling Inductors Using Characteristic Mode Analysis

Longyue Qu

doi:10.1109/LAWP.2023.3312690

Common-Loop MIMO Antenna Design With Decoupling Inductors Using Characteristic Mode Analysis

Longyue Qu^*

^*Corresponding author for this work

Harbin Institute of Technology Shenzhen

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

This letter investigates the intrinsic operation principles of the decoupling inductors in multiple-input-multiple-output (MIMO) antenna design using the characteristic mode analysis, in the first of its kind. This work starts with the analysis of a conventional one-wavelength loop antenna and then investigates the MIMO antenna design methods in terminal scenarios. It is revealed that the decoupling inductors introduce a new characteristic mode within the antenna operation band, contributing to the current-mode-canceling effect and responsible for port-to-port isolation. A two-in-one common-loop MIMO antenna design with high-isolation characteristics is proposed for N77/N78/N79 applications. Both simulation and measurement were conducted to verify the feasibility of the proposed MIMO antennas.

Original language	English
Pages (from-to)	3172-3176
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	22
Issue number	12
DOIs	https://doi.org/10.1109/LAWP.2023.3312690
State	Published - 1 Dec 2023
Externally published	Yes

Keywords

Characteristic mode analysis (CMA)
decoupling inductor
high isolation
multiple-input-multiple-output (MIMO)

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10.1109/LAWP.2023.3312690

Cite this

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title = "Common-Loop MIMO Antenna Design With Decoupling Inductors Using Characteristic Mode Analysis",

abstract = "This letter investigates the intrinsic operation principles of the decoupling inductors in multiple-input-multiple-output (MIMO) antenna design using the characteristic mode analysis, in the first of its kind. This work starts with the analysis of a conventional one-wavelength loop antenna and then investigates the MIMO antenna design methods in terminal scenarios. It is revealed that the decoupling inductors introduce a new characteristic mode within the antenna operation band, contributing to the current-mode-canceling effect and responsible for port-to-port isolation. A two-in-one common-loop MIMO antenna design with high-isolation characteristics is proposed for N77/N78/N79 applications. Both simulation and measurement were conducted to verify the feasibility of the proposed MIMO antennas.",

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AU - Qu, Longyue

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AB - This letter investigates the intrinsic operation principles of the decoupling inductors in multiple-input-multiple-output (MIMO) antenna design using the characteristic mode analysis, in the first of its kind. This work starts with the analysis of a conventional one-wavelength loop antenna and then investigates the MIMO antenna design methods in terminal scenarios. It is revealed that the decoupling inductors introduce a new characteristic mode within the antenna operation band, contributing to the current-mode-canceling effect and responsible for port-to-port isolation. A two-in-one common-loop MIMO antenna design with high-isolation characteristics is proposed for N77/N78/N79 applications. Both simulation and measurement were conducted to verify the feasibility of the proposed MIMO antennas.

KW - Characteristic mode analysis (CMA)

KW - decoupling inductor

KW - high isolation

KW - multiple-input-multiple-output (MIMO)

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DO - 10.1109/LAWP.2023.3312690

M3 - 文章

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SN - 1536-1225

VL - 22

SP - 3172

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 12

ER -

Common-Loop MIMO Antenna Design With Decoupling Inductors Using Characteristic Mode Analysis

Abstract

Keywords

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