A shared-aperture dual-band dual-polarized filtering-antenna-array with improved frequency response

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A shared-aperture dual-band dual-polarized filtering-antenna-array with improved frequency response. / Mao, Chun-Xu; Gao, Steven; Wang, Yi; Luo, Qi; Chu, Qing-Xin.

In: IEEE Transactions on Antennas and Propagation, Vol. 65, No. 4, 04.2017, p. 1836-1844.

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@article{1bf71c2182ab44ef9df1a556a2c3cfc1,
title = "A shared-aperture dual-band dual-polarized filtering-antenna-array with improved frequency response",
abstract = "In this paper, a novel dual-band dual-polarized array antenna with low frequency ratio and integrated filtering characteristics is proposed. By employing a dual-mode stub-loaded resonator (SLR) to feed and tune with two patches, the two feed networks for each polarization can be combined, resulting in the reduction of the feed networks and the input ports. In addition, owing to the native dual resonant features of the SLR, the proposed antenna exhibits second-order filtering characteristics with improved bandwidth and out-of-band rejections. The antenna is synthesized and the design methodology is explained. The coupling coefficients between the SLR and the patches are investigated. To verify the design concept, a C-/X-band element and a 2×2 array are optimized and prototyped. Measured results agree well with the simulations, showing good performance in terms of bandwidth, filtering, harmonic suppression, and radiation at both bands. Such an integrated array design can be used to simplify the feed of a reflector antenna. To prove the concept, a paraboloid reflector fed by the proposed array is conceived and measured directivities of 24.6 dBi (24.7 dBi) and 28.6 dBi (29.2 dBi) for the X-polarization (Y-polarization) are obtained for the low- and high-band operations, respectively.",
author = "Chun-Xu Mao and Steven Gao and Yi Wang and Qi Luo and Qing-Xin Chu",
year = "2017",
month = apr,
doi = "10.1109/TAP.2017.2670325",
language = "English",
volume = "65",
pages = "1836--1844",
journal = "IEEE Transactions on Antennas and Propagation",
issn = "0018-926X",
publisher = "IEEE Xplore",
number = "4",

}

RIS

TY - JOUR

T1 - A shared-aperture dual-band dual-polarized filtering-antenna-array with improved frequency response

AU - Mao, Chun-Xu

AU - Gao, Steven

AU - Wang, Yi

AU - Luo, Qi

AU - Chu, Qing-Xin

PY - 2017/4

Y1 - 2017/4

N2 - In this paper, a novel dual-band dual-polarized array antenna with low frequency ratio and integrated filtering characteristics is proposed. By employing a dual-mode stub-loaded resonator (SLR) to feed and tune with two patches, the two feed networks for each polarization can be combined, resulting in the reduction of the feed networks and the input ports. In addition, owing to the native dual resonant features of the SLR, the proposed antenna exhibits second-order filtering characteristics with improved bandwidth and out-of-band rejections. The antenna is synthesized and the design methodology is explained. The coupling coefficients between the SLR and the patches are investigated. To verify the design concept, a C-/X-band element and a 2×2 array are optimized and prototyped. Measured results agree well with the simulations, showing good performance in terms of bandwidth, filtering, harmonic suppression, and radiation at both bands. Such an integrated array design can be used to simplify the feed of a reflector antenna. To prove the concept, a paraboloid reflector fed by the proposed array is conceived and measured directivities of 24.6 dBi (24.7 dBi) and 28.6 dBi (29.2 dBi) for the X-polarization (Y-polarization) are obtained for the low- and high-band operations, respectively.

AB - In this paper, a novel dual-band dual-polarized array antenna with low frequency ratio and integrated filtering characteristics is proposed. By employing a dual-mode stub-loaded resonator (SLR) to feed and tune with two patches, the two feed networks for each polarization can be combined, resulting in the reduction of the feed networks and the input ports. In addition, owing to the native dual resonant features of the SLR, the proposed antenna exhibits second-order filtering characteristics with improved bandwidth and out-of-band rejections. The antenna is synthesized and the design methodology is explained. The coupling coefficients between the SLR and the patches are investigated. To verify the design concept, a C-/X-band element and a 2×2 array are optimized and prototyped. Measured results agree well with the simulations, showing good performance in terms of bandwidth, filtering, harmonic suppression, and radiation at both bands. Such an integrated array design can be used to simplify the feed of a reflector antenna. To prove the concept, a paraboloid reflector fed by the proposed array is conceived and measured directivities of 24.6 dBi (24.7 dBi) and 28.6 dBi (29.2 dBi) for the X-polarization (Y-polarization) are obtained for the low- and high-band operations, respectively.

U2 - 10.1109/TAP.2017.2670325

DO - 10.1109/TAP.2017.2670325

M3 - Article

VL - 65

SP - 1836

EP - 1844

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

SN - 0018-926X

IS - 4

ER -