Millimeter-wave slotted waveguide array with unequal beamwidths and low sidelobe levels for vehicle radars and communications

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Millimeter-wave slotted waveguide array with unequal beamwidths and low sidelobe levels for vehicle radars and communications. / Qin, Liting; Lu, Yunlong; You, Qingchun; Wang, Yi; Huang, Jifu; Gardner, Peter.

In: IEEE Transactions on Vehicular Technology, Vol. 67, No. 11, 8440768, 01.11.2018, p. 10574-10582.

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@article{5b6e961fd6664e2b8b2af97091063b6a,
title = "Millimeter-wave slotted waveguide array with unequal beamwidths and low sidelobe levels for vehicle radars and communications",
abstract = "A low profile, high gain 32 × 64-slot array antenna with unequal beamwidths in the E- A nd H-planes and low sidelobes is proposed for vehicular applications in the 71-81 GHz band. The antenna is composed of 512 (16 × 32) 2 × 2-slot subarrays arranged with equal spacing and excited by a nonuniform corporate-feed-network. A two dimensional amplitude-tapering (complying with Taylor distribution) is used to achieve the low sidelobe levels (SLLs). Combined with the different dimensions of the array, the sidelobes and the beamwidths in the E- A nd H-planes are independently controlled. A prototype slotted waveguide array is fabricated to verify the array properties. Measurements show that the matching of the array is better than-14 dB over the entire bandwidth. The first SLL is lower than-18.9 dB/-24 dB with the maximum 3-dB beamwidth of 2.3°/1.3° in the E-/H-plane, respectively. The peak gain of over 39.4 dBi and the cross-polarization discrimination (XPD) of below-36.2 dB are also achieved. The demonstrated features of high gain, low SLL, and independent controllability of the beam in the E- A nd H-planes are most desirable for vehicular communications and radars.",
keywords = "2-D amplitude-tapering, high gain, low sidelobe, Slotted waveguide array",
author = "Liting Qin and Yunlong Lu and Qingchun You and Yi Wang and Jifu Huang and Peter Gardner",
year = "2018",
month = nov
day = "1",
doi = "10.1109/TVT.2018.2866245",
language = "English",
volume = "67",
pages = "10574--10582",
journal = "IEEE Transactions on Vehicular Technology",
issn = "0018-9545",
publisher = "IEEE Xplore",
number = "11",

}

RIS

TY - JOUR

T1 - Millimeter-wave slotted waveguide array with unequal beamwidths and low sidelobe levels for vehicle radars and communications

AU - Qin, Liting

AU - Lu, Yunlong

AU - You, Qingchun

AU - Wang, Yi

AU - Huang, Jifu

AU - Gardner, Peter

PY - 2018/11/1

Y1 - 2018/11/1

N2 - A low profile, high gain 32 × 64-slot array antenna with unequal beamwidths in the E- A nd H-planes and low sidelobes is proposed for vehicular applications in the 71-81 GHz band. The antenna is composed of 512 (16 × 32) 2 × 2-slot subarrays arranged with equal spacing and excited by a nonuniform corporate-feed-network. A two dimensional amplitude-tapering (complying with Taylor distribution) is used to achieve the low sidelobe levels (SLLs). Combined with the different dimensions of the array, the sidelobes and the beamwidths in the E- A nd H-planes are independently controlled. A prototype slotted waveguide array is fabricated to verify the array properties. Measurements show that the matching of the array is better than-14 dB over the entire bandwidth. The first SLL is lower than-18.9 dB/-24 dB with the maximum 3-dB beamwidth of 2.3°/1.3° in the E-/H-plane, respectively. The peak gain of over 39.4 dBi and the cross-polarization discrimination (XPD) of below-36.2 dB are also achieved. The demonstrated features of high gain, low SLL, and independent controllability of the beam in the E- A nd H-planes are most desirable for vehicular communications and radars.

AB - A low profile, high gain 32 × 64-slot array antenna with unequal beamwidths in the E- A nd H-planes and low sidelobes is proposed for vehicular applications in the 71-81 GHz band. The antenna is composed of 512 (16 × 32) 2 × 2-slot subarrays arranged with equal spacing and excited by a nonuniform corporate-feed-network. A two dimensional amplitude-tapering (complying with Taylor distribution) is used to achieve the low sidelobe levels (SLLs). Combined with the different dimensions of the array, the sidelobes and the beamwidths in the E- A nd H-planes are independently controlled. A prototype slotted waveguide array is fabricated to verify the array properties. Measurements show that the matching of the array is better than-14 dB over the entire bandwidth. The first SLL is lower than-18.9 dB/-24 dB with the maximum 3-dB beamwidth of 2.3°/1.3° in the E-/H-plane, respectively. The peak gain of over 39.4 dBi and the cross-polarization discrimination (XPD) of below-36.2 dB are also achieved. The demonstrated features of high gain, low SLL, and independent controllability of the beam in the E- A nd H-planes are most desirable for vehicular communications and radars.

KW - 2-D amplitude-tapering

KW - high gain

KW - low sidelobe

KW - Slotted waveguide array

UR - http://www.scopus.com/inward/record.url?scp=85051808101&partnerID=8YFLogxK

U2 - 10.1109/TVT.2018.2866245

DO - 10.1109/TVT.2018.2866245

M3 - Article

AN - SCOPUS:85051808101

VL - 67

SP - 10574

EP - 10582

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

IS - 11

M1 - 8440768

ER -