A Multi-Function Automotive MM-Wave Radar Design

Bi, Xiao-Jun; Ma, Zenghong; Wang, Wei; Du, Juan

doi:10.4271/2016-01-1895

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…Millimeter wave has the advantages of short wavelength, wide frequency band, insensitivity to fog, snow, dust and other harsh environments, and microstrip antenna has the advantages of low profile, small size, light weight, flexible design, and low cost. Therefore, the millimeter wave microstrip antenna array is applied to many practical processes, such as various radar systems, microstrip sensors, and wireless communication systems …”

Section: Introductionmentioning

confidence: 99%

A 24 GHz microstrip antenna array with large space and narrow beamwidth

Jia

Liu

Zhang

2019

Micro & Optical Tech Letters

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A microstrip antenna array with large space and narrow beamwidth working at 24 GHz is presented in this paper. In some millimeter‐wave radar systems, it is often necessary for transmitting antenna with high gain and narrow beamwidth to avoid interference from other information. According to the theory of antenna array, when the number and spacing of the subarrays and the sidelobe level are given, the half‐power beamwidth can be basically determined. In previous studies, the subarray spacing of the transmitting antenna is usually taken as a dielectric wavelength λg. In this paper, under the condition that the number of subarrays is given and no grating lobe is generated, the half power beamwidth is further narrowed by increasing the subarray spacing. The final subarray space of the 12 × 8 antenna array is 11.5 mm, that is, 1.68 dielectric wavelength (λg), and the half power beamwidth of H‐plane is only 5.5°. The simulated and measured results are presented and discussed. Through processing and testing, it is proved that the antenna array has good performance and can be applied to 24 GHz automotive collision avoidance radar or 24 GHz perimeter security radar.

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Section: Introductionmentioning

confidence: 99%