A Dual-Polarized Planar Antenna Array Differentially-Fed by Orthomode Transducer

Q. Yang; S. Gao; Q. Luo; L. Wen; X. Ren; J. Wu; Y. -L. Ban; X. Yang

doi:10.1109/TAP.2020.3028211

A Dual-Polarized Planar Antenna Array Differentially-Fed by Orthomode Transducer

Q. Yang, S. Gao, Q. Luo, L. Wen, X. Ren, J. Wu, Y. -L. Ban, X. Yang

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Abstract

This paper presents a new design of a differentially-fed substrate integrated planar antenna array with dual-polarization. Compared with the traditional dual-polarized antenna arrays, the proposed array antenna has the advantages of simple configuration, high cross-polarization discrimination (XPD) and high gain. 2×2-element subarray design with a via-loaded crossover structure is used, which reduces the complexity of the array antenna. The operation bandwidth is improved by generating three resonances in the subarray. An 8×8 antenna array is designed, prototyped and tested to exemplify its potential applications in large dual-polarized antenna arrays. A planar orthomode transducer is used to achieve differential excitation for the antenna array. The measured results show that the proposed antenna array has an impedance bandwidth of 19.2–20.7 GHz for |S11|<-10 dB and port isolation higher than 20 dB. The array antenna exhibits a high XPD of 43 dB and a flat gain about 22.2 dBi within the bandwidth.

Original language	English
Number of pages	1
Journal	IEEE Transactions on Antennas and Propagation
Early online date	7 Oct 2020
DOIs	https://doi.org/10.1109/TAP.2020.3028211
Publication status	Published - 5 May 2021

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10.1109/TAP.2020.3028211Licence: CC BY

A Dual-Polarized Planar Antenna Array Differentially-Fed by Orthomode Transducer
© 2020 IEEE. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
Final published version, 4.02 MBLicence: CC BY

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title = "A Dual-Polarized Planar Antenna Array Differentially-Fed by Orthomode Transducer",

abstract = "This paper presents a new design of a differentially-fed substrate integrated planar antenna array with dual-polarization. Compared with the traditional dual-polarized antenna arrays, the proposed array antenna has the advantages of simple configuration, high cross-polarization discrimination (XPD) and high gain. 2×2-element subarray design with a via-loaded crossover structure is used, which reduces the complexity of the array antenna. The operation bandwidth is improved by generating three resonances in the subarray. An 8×8 antenna array is designed, prototyped and tested to exemplify its potential applications in large dual-polarized antenna arrays. A planar orthomode transducer is used to achieve differential excitation for the antenna array. The measured results show that the proposed antenna array has an impedance bandwidth of 19.2–20.7 GHz for |S11|<-10 dB and port isolation higher than 20 dB. The array antenna exhibits a high XPD of 43 dB and a flat gain about 22.2 dBi within the bandwidth.",

author = "Q. Yang and S. Gao and Q. Luo and L. Wen and X. Ren and J. Wu and Ban, {Y. -L.} and X. Yang",

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doi = "10.1109/TAP.2020.3028211",

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AU - Yang, Q.

AU - Gao, S.

AU - Luo, Q.

AU - Wen, L.

AU - Ren, X.

AU - Wu, J.

AU - Ban, Y. -L.

AU - Yang, X.

PY - 2021/5/5

Y1 - 2021/5/5

N2 - This paper presents a new design of a differentially-fed substrate integrated planar antenna array with dual-polarization. Compared with the traditional dual-polarized antenna arrays, the proposed array antenna has the advantages of simple configuration, high cross-polarization discrimination (XPD) and high gain. 2×2-element subarray design with a via-loaded crossover structure is used, which reduces the complexity of the array antenna. The operation bandwidth is improved by generating three resonances in the subarray. An 8×8 antenna array is designed, prototyped and tested to exemplify its potential applications in large dual-polarized antenna arrays. A planar orthomode transducer is used to achieve differential excitation for the antenna array. The measured results show that the proposed antenna array has an impedance bandwidth of 19.2–20.7 GHz for |S11|<-10 dB and port isolation higher than 20 dB. The array antenna exhibits a high XPD of 43 dB and a flat gain about 22.2 dBi within the bandwidth.

AB - This paper presents a new design of a differentially-fed substrate integrated planar antenna array with dual-polarization. Compared with the traditional dual-polarized antenna arrays, the proposed array antenna has the advantages of simple configuration, high cross-polarization discrimination (XPD) and high gain. 2×2-element subarray design with a via-loaded crossover structure is used, which reduces the complexity of the array antenna. The operation bandwidth is improved by generating three resonances in the subarray. An 8×8 antenna array is designed, prototyped and tested to exemplify its potential applications in large dual-polarized antenna arrays. A planar orthomode transducer is used to achieve differential excitation for the antenna array. The measured results show that the proposed antenna array has an impedance bandwidth of 19.2–20.7 GHz for |S11|<-10 dB and port isolation higher than 20 dB. The array antenna exhibits a high XPD of 43 dB and a flat gain about 22.2 dBi within the bandwidth.

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JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

ER -

A Dual-Polarized Planar Antenna Array Differentially-Fed by Orthomode Transducer

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