A Wideband 16×16-Slot array antenna With Low Side-lobe Design in W-band

Hao LUO; Wenhao TAN; Luoning GAN; Houjun SUN

doi:10.1587/transcom.2018EBP3303

A Wideband 16×16-Slot array antenna With Low Side-lobe Design in W-band

Hao LUO, Wenhao TAN, Luoning GAN, Houjun SUN

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Summary :

A W-band corporate-feed 16×16-slot array antenna with low sidelobe level is designed and fabricated. The basic unit of the array is a 2×2-circular-slot subarray with step square cavities and uses an E-plane waveguide as the feeding line. An efficient method to design an unequal power-splitting ratio but equal phase (UPEP) E-plane waveguide T-junction (E-T) is proposed for constructing a 1-to-64 power-tapering feed network, which is the critical part to realize low sidelobe level. The whole array is fabricated with aluminum by milling and bonded by the vacuum brazing process. The measured results demonstrate that the array can achieve a 7.2% bandwidth with VSWR<1.5 and holistic sidelobe levels lower than -23.5dB in E-plane and H-plane from 89GHz ∼ 95.8GHz. The measured gain is higher than 31.7dBi over the working band with the antenna efficiency better than 67.5%.

Publication: IEICE TRANSACTIONS on Communications Vol.E102-B No.8 pp.1689-1694

Publication Date: 2019/08/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2018EBP3303

Type of Manuscript: PAPER

Category: Antennas and Propagation

Authors

Hao LUO
  Beijing Insititue of Technology
Wenhao TAN
  Beijing Insititue of Technology
Luoning GAN
  Beijing Insititue of Technology
Houjun SUN
  Beijing Insititue of Technology

Keyword

Slot array, full-corporate-feed, low sidelobe, W-band

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Hao LUO, Wenhao TAN, Luoning GAN, Houjun SUN, "A Wideband 16×16-Slot array antenna With Low Side-lobe Design in W-band" in IEICE TRANSACTIONS on Communications, vol. E102-B, no. 8, pp. 1689-1694, August 2019, doi: 10.1587/transcom.2018EBP3303.
Abstract: A W-band corporate-feed 16×16-slot array antenna with low sidelobe level is designed and fabricated. The basic unit of the array is a 2×2-circular-slot subarray with step square cavities and uses an E-plane waveguide as the feeding line. An efficient method to design an unequal power-splitting ratio but equal phase (UPEP) E-plane waveguide T-junction (E-T) is proposed for constructing a 1-to-64 power-tapering feed network, which is the critical part to realize low sidelobe level. The whole array is fabricated with aluminum by milling and bonded by the vacuum brazing process. The measured results demonstrate that the array can achieve a 7.2% bandwidth with VSWR<1.5 and holistic sidelobe levels lower than -23.5dB in E-plane and H-plane from 89GHz ∼ 95.8GHz. The measured gain is higher than 31.7dBi over the working band with the antenna efficiency better than 67.5%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3303/_p

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@ARTICLE{e102-b_8_1689,
author={Hao LUO, Wenhao TAN, Luoning GAN, Houjun SUN, },
journal={IEICE TRANSACTIONS on Communications},
title={A Wideband 16×16-Slot array antenna With Low Side-lobe Design in W-band},
year={2019},
volume={E102-B},
number={8},
pages={1689-1694},
abstract={A W-band corporate-feed 16×16-slot array antenna with low sidelobe level is designed and fabricated. The basic unit of the array is a 2×2-circular-slot subarray with step square cavities and uses an E-plane waveguide as the feeding line. An efficient method to design an unequal power-splitting ratio but equal phase (UPEP) E-plane waveguide T-junction (E-T) is proposed for constructing a 1-to-64 power-tapering feed network, which is the critical part to realize low sidelobe level. The whole array is fabricated with aluminum by milling and bonded by the vacuum brazing process. The measured results demonstrate that the array can achieve a 7.2% bandwidth with VSWR<1.5 and holistic sidelobe levels lower than -23.5dB in E-plane and H-plane from 89GHz ∼ 95.8GHz. The measured gain is higher than 31.7dBi over the working band with the antenna efficiency better than 67.5%.},
keywords={},
doi={10.1587/transcom.2018EBP3303},
ISSN={1745-1345},
month={August},}

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TY - JOUR
TI - A Wideband 16×16-Slot array antenna With Low Side-lobe Design in W-band
T2 - IEICE TRANSACTIONS on Communications
SP - 1689
EP - 1694
AU - Hao LUO
AU - Wenhao TAN
AU - Luoning GAN
AU - Houjun SUN
PY - 2019
DO - 10.1587/transcom.2018EBP3303
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2019
AB - A W-band corporate-feed 16×16-slot array antenna with low sidelobe level is designed and fabricated. The basic unit of the array is a 2×2-circular-slot subarray with step square cavities and uses an E-plane waveguide as the feeding line. An efficient method to design an unequal power-splitting ratio but equal phase (UPEP) E-plane waveguide T-junction (E-T) is proposed for constructing a 1-to-64 power-tapering feed network, which is the critical part to realize low sidelobe level. The whole array is fabricated with aluminum by milling and bonded by the vacuum brazing process. The measured results demonstrate that the array can achieve a 7.2% bandwidth with VSWR<1.5 and holistic sidelobe levels lower than -23.5dB in E-plane and H-plane from 89GHz ∼ 95.8GHz. The measured gain is higher than 31.7dBi over the working band with the antenna efficiency better than 67.5%.
ER -