Analyses and Full-Duplex Applications of Circularly Polarized OAM Arrays Using Sequentially Rotated Configuration

Yiming Zhang, Jia-Lin Li

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4 Citations (Scopus)
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Abstract

This paper presents the analyses of circularly polarized orbital angular momentum (OAM) ring arrays using sequentially rotated configurations. For the studied OAM-based microstrip antenna arrays, the relationship between the excitation settings and the generated OAM modes are studied together with the axial ratio (AR) bandwidths at the beam maximums. Furthermore, a dual-OAM-mode circularly polarized array is proposed for full-duplex applications. Based on the presented OAM-mode selection method, the self-interference due to the strong mutual coupling within the array can be well canceled, leading to a high interport isolation. A demonstrator centered at 15 GHz with OAM modes of +1 and +2 is developed and fabricated for verification purposes. The demonstrator uses a sharing antenna scheme for the two OAM modes to realize a compact architecture. Measured results indicate that the demonstrator characterizes good interport isolation within a wide bandwidth from 13.92 to 16.38 GHz referring to a 45 dB level as well as wide AR bandwidths at the beam maximums.
Original languageEnglish
JournalIEEE Transactions on Antennas and Propagation
Pages (from-to)7010-7020
Number of pages11
ISSN0018-926X
DOIs
Publication statusPublished - 26 Sep 2018
Externally publishedYes

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Angular momentum
Bandwidth
Microstrip antennas
Antenna arrays
Antennas

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title = "Analyses and Full-Duplex Applications of Circularly Polarized OAM Arrays Using Sequentially Rotated Configuration",
abstract = "This paper presents the analyses of circularly polarized orbital angular momentum (OAM) ring arrays using sequentially rotated configurations. For the studied OAM-based microstrip antenna arrays, the relationship between the excitation settings and the generated OAM modes are studied together with the axial ratio (AR) bandwidths at the beam maximums. Furthermore, a dual-OAM-mode circularly polarized array is proposed for full-duplex applications. Based on the presented OAM-mode selection method, the self-interference due to the strong mutual coupling within the array can be well canceled, leading to a high interport isolation. A demonstrator centered at 15 GHz with OAM modes of +1 and +2 is developed and fabricated for verification purposes. The demonstrator uses a sharing antenna scheme for the two OAM modes to realize a compact architecture. Measured results indicate that the demonstrator characterizes good interport isolation within a wide bandwidth from 13.92 to 16.38 GHz referring to a 45 dB level as well as wide AR bandwidths at the beam maximums.",
author = "Yiming Zhang and Jia-Lin Li",
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language = "English",
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journal = "I E E E Transactions on Antennas and Propagation",
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Analyses and Full-Duplex Applications of Circularly Polarized OAM Arrays Using Sequentially Rotated Configuration. / Zhang, Yiming; Li, Jia-Lin.

In: IEEE Transactions on Antennas and Propagation, 26.09.2018, p. 7010-7020.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Analyses and Full-Duplex Applications of Circularly Polarized OAM Arrays Using Sequentially Rotated Configuration

AU - Zhang, Yiming

AU - Li, Jia-Lin

PY - 2018/9/26

Y1 - 2018/9/26

N2 - This paper presents the analyses of circularly polarized orbital angular momentum (OAM) ring arrays using sequentially rotated configurations. For the studied OAM-based microstrip antenna arrays, the relationship between the excitation settings and the generated OAM modes are studied together with the axial ratio (AR) bandwidths at the beam maximums. Furthermore, a dual-OAM-mode circularly polarized array is proposed for full-duplex applications. Based on the presented OAM-mode selection method, the self-interference due to the strong mutual coupling within the array can be well canceled, leading to a high interport isolation. A demonstrator centered at 15 GHz with OAM modes of +1 and +2 is developed and fabricated for verification purposes. The demonstrator uses a sharing antenna scheme for the two OAM modes to realize a compact architecture. Measured results indicate that the demonstrator characterizes good interport isolation within a wide bandwidth from 13.92 to 16.38 GHz referring to a 45 dB level as well as wide AR bandwidths at the beam maximums.

AB - This paper presents the analyses of circularly polarized orbital angular momentum (OAM) ring arrays using sequentially rotated configurations. For the studied OAM-based microstrip antenna arrays, the relationship between the excitation settings and the generated OAM modes are studied together with the axial ratio (AR) bandwidths at the beam maximums. Furthermore, a dual-OAM-mode circularly polarized array is proposed for full-duplex applications. Based on the presented OAM-mode selection method, the self-interference due to the strong mutual coupling within the array can be well canceled, leading to a high interport isolation. A demonstrator centered at 15 GHz with OAM modes of +1 and +2 is developed and fabricated for verification purposes. The demonstrator uses a sharing antenna scheme for the two OAM modes to realize a compact architecture. Measured results indicate that the demonstrator characterizes good interport isolation within a wide bandwidth from 13.92 to 16.38 GHz referring to a 45 dB level as well as wide AR bandwidths at the beam maximums.

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DO - 10.1109/TAP.2018.2872169

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JO - I E E E Transactions on Antennas and Propagation

JF - I E E E Transactions on Antennas and Propagation

SN - 0018-926X

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