The design of a trimodal broadside antenna element for compact massive MIMO arrays: Utilizing the Theory of Characteristic Modes

Chi Yuk Chiu; Shanpu Shen; Buon Kiong Lau; Ross Murch

doi:10.1109/MAP.2019.2958515

The design of a trimodal broadside antenna element for compact massive MIMO arrays: Utilizing the Theory of Characteristic Modes

Chi Yuk Chiu, Shanpu Shen, Buon Kiong Lau, Ross Murch

Hong Kong University of Science and Technology

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

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Abstract

Massive multiple-input multiple-output (MIMO) arrays are becoming critical elements in cellular base station infrastructure. We utilize the theory of characteristic modes (TCM) to design a novel tri-modal broadside antenna element which is suitable for the construction of compact massive MIMO
arrays. The proposed antenna element consists of three ports which is formed by reviewing an existing compact two-port Y-shaped patch antenna from a TCM perspective. Using this perspective the Y-shaped antenna is modiﬁed into a snowﬂake-shaped patch antenna and excited by three ports via capacitive coupling. The advantage of the design approach is that the size of the three-port antenna is approximately the same as a conventional dual-polarized patch antenna, hence allowing 50% more antenna elements for the same array aperture. By cutting the ground plane into a hexagonal shape, multiple of the proposed three-port canonical antennas are concatenated together to form 21- and 102-port massive MIMO arrays with all radiation patterns pointing in the broadside direction. Key performance characteristics of the massive MIMO arrays, such as
the Hermitian product of the simulated massive MIMO channel and mutual coupling, validate the effectiveness of the compact design.

Original language	English
Pages (from-to)	46-61
Number of pages	16
Journal	IEEE Antennas and Propagation Magazine
Volume	62
Issue number	6
Early online date	2019
DOIs	https://doi.org/10.1109/MAP.2019.2958515
Publication status	Published - 2020 Dec

Subject classification (UKÄ)

Electrical Engineering, Electronic Engineering, Information Engineering

Access to Document

10.1109/MAP.2019.2958515

APMag-R1_v18Accepted author manuscript, 10.8 MB

3 Article
1 Paper in conference proceeding
1 Review article

A low-profile wideband dual-resonance tri-port MIMO antenna
Nie, L., Lau, B. K., Aliakbari Abar, H., Xiang, S., Wang, B. & Lin, X., 2022 Jun, In: IEEE Transactions on Antennas and Propagation. 70, 6, p. 4866-4871
Research output: Contribution to journal › Article › peer-review

Open Access
File
123 Downloads (Pure)
Characteristic modes – progress, overview, and emerging topics
Lau, B. K., Capek, M. & Hassan, A. M., 2022 Apr, In: IEEE Antennas and Propagation Magazine. 64, 2, p. 14-22 9 p.
Research output: Contribution to journal › Review article › peer-review

Open Access
File
581 Downloads (Pure)
Co-designed 3+3 port dual-band broadside tri-modal patch antenna
Chiu, C.-Y., Lau, B. K. & Murch, R., 2021, In: IEEE Open Journal on Antennas and Propagation. 2, p. 767-777
Research output: Contribution to journal › Article › peer-review

Open Access
File
119 Downloads (Pure)

Cite this

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title = "The design of a trimodal broadside antenna element for compact massive MIMO arrays: Utilizing the Theory of Characteristic Modes",

abstract = "Massive multiple-input multiple-output (MIMO) arrays are becoming critical elements in cellular base station infrastructure. We utilize the theory of characteristic modes (TCM) to design a novel tri-modal broadside antenna element which is suitable for the construction of compact massive MIMOarrays. The proposed antenna element consists of three ports which is formed by reviewing an existing compact two-port Y-shaped patch antenna from a TCM perspective. Using this perspective the Y-shaped antenna is modiﬁed into a snowﬂake-shaped patch antenna and excited by three ports via capacitive coupling. The advantage of the design approach is that the size of the three-port antenna is approximately the same as a conventional dual-polarized patch antenna, hence allowing 50% more antenna elements for the same array aperture. By cutting the ground plane into a hexagonal shape, multiple of the proposed three-port canonical antennas are concatenated together to form 21- and 102-port massive MIMO arrays with all radiation patterns pointing in the broadside direction. Key performance characteristics of the massive MIMO arrays, such asthe Hermitian product of the simulated massive MIMO channel and mutual coupling, validate the effectiveness of the compact design.",

author = "Chiu, {Chi Yuk} and Shanpu Shen and Lau, {Buon Kiong} and Ross Murch",

year = "2020",

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doi = "10.1109/MAP.2019.2958515",

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AU - Lau, Buon Kiong

AU - Murch, Ross

PY - 2020/12

Y1 - 2020/12

N2 - Massive multiple-input multiple-output (MIMO) arrays are becoming critical elements in cellular base station infrastructure. We utilize the theory of characteristic modes (TCM) to design a novel tri-modal broadside antenna element which is suitable for the construction of compact massive MIMOarrays. The proposed antenna element consists of three ports which is formed by reviewing an existing compact two-port Y-shaped patch antenna from a TCM perspective. Using this perspective the Y-shaped antenna is modiﬁed into a snowﬂake-shaped patch antenna and excited by three ports via capacitive coupling. The advantage of the design approach is that the size of the three-port antenna is approximately the same as a conventional dual-polarized patch antenna, hence allowing 50% more antenna elements for the same array aperture. By cutting the ground plane into a hexagonal shape, multiple of the proposed three-port canonical antennas are concatenated together to form 21- and 102-port massive MIMO arrays with all radiation patterns pointing in the broadside direction. Key performance characteristics of the massive MIMO arrays, such asthe Hermitian product of the simulated massive MIMO channel and mutual coupling, validate the effectiveness of the compact design.

AB - Massive multiple-input multiple-output (MIMO) arrays are becoming critical elements in cellular base station infrastructure. We utilize the theory of characteristic modes (TCM) to design a novel tri-modal broadside antenna element which is suitable for the construction of compact massive MIMOarrays. The proposed antenna element consists of three ports which is formed by reviewing an existing compact two-port Y-shaped patch antenna from a TCM perspective. Using this perspective the Y-shaped antenna is modiﬁed into a snowﬂake-shaped patch antenna and excited by three ports via capacitive coupling. The advantage of the design approach is that the size of the three-port antenna is approximately the same as a conventional dual-polarized patch antenna, hence allowing 50% more antenna elements for the same array aperture. By cutting the ground plane into a hexagonal shape, multiple of the proposed three-port canonical antennas are concatenated together to form 21- and 102-port massive MIMO arrays with all radiation patterns pointing in the broadside direction. Key performance characteristics of the massive MIMO arrays, such asthe Hermitian product of the simulated massive MIMO channel and mutual coupling, validate the effectiveness of the compact design.

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The design of a trimodal broadside antenna element for compact massive MIMO arrays: Utilizing the Theory of Characteristic Modes

Abstract

Subject classification (UKÄ)

Access to Document

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Research output

A low-profile wideband dual-resonance tri-port MIMO antenna

Characteristic modes – progress, overview, and emerging topics

Co-designed 3+3 port dual-band broadside tri-modal patch antenna

Cite this