Low‐cost multi‐layer parasitic patch antenna array for 79 GHz automotive radar applications

Mosalanejad, Mohammad; Ocket, Ilja; Soens, Charlotte; Vandenbosch, Guy A. E.

doi:10.1002/mop.31526

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…A double indirect couple feeding mechanism is used to excite an array of patch antenna [32], at a resonance of 79 GHz, with HPBW of 70 • along the E plane and 8.1 • along the H-plane providing a gain of 11.5 dB with a side lobe level suppression as low as -15.9 dB. In [9], a series-coupled split ring resonator antenna array of 20 × 1 is designed that provides an HPBW of 125 • /5 • at 79 GHz.A parallel-fed parasitic patch array is designed in [21], providing an HPBW of 84 • /11 • . In [5] a 1 × 10 grid array antenna with a wide bandwidth up to 15.4 GHz is designed.…”

Section: Introductionmentioning

confidence: 99%

Wide Beam Antenna for MIMO-Based Automotive Radar Applications

Pillai,

Prajapati,

Upadhayay

2024

Preprint

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In this article, a new microstrip antenna design is proposed that offers a wide half-power beamwidth over a frequency range of 77-81 GHz. The antenna has a size of 7x7x0.508µm³ and is built on a Taconic substrate (εr=2.2). Parasitics are used in the antenna to enhance the beamwidths to 158.6°,149.6°, and 139°, at 77 GHz, 79 GHz, and 81 GHz, respectively. A 2x2 MIMO arrangement is also studied to increase the overall gain of the system up to 12.2 dB, although there is a slight reduction in the beamwidths to 139.9°, 142.7°, and 133.5° at 77 GHz, 79 GHz, and 81 GHz respectively. The single element as well as the MIMO configuration achieve side lobe level suppression of -10.9 dB. The analysis of different MIMO performance metrics, including envelope correlation coefficient, channel capacity loss, diversity gain, mean effective gain, TARC, etc., has shown that they are all within acceptable ranges.

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Section: Introductionmentioning

confidence: 99%

Wide Beam Antenna for MIMO-Based Automotive Radar Applications

Pillai,

Prajapati,

Upadhayay

2024

Preprint

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“…The 5G (fifth-generation) communication in mmWave band is essentially the directional communication that requires mmWave array antenna with scanning functionalities, low profile, and compacted high-density interconnection (HDI) integration. [1][2][3][4] Hence, patch array antennas with multilayer configuration, which are compatible to integrate active components in HDI, are preferred in mmWave technologies, such as in Antenna-in-Package (AiP) module. [5][6][7] Some new fabrication techniques such as advanced laser micromachining, 8 laser-induced graphene with metal coating have been studied.…”

Section: Introductionmentioning

confidence: 99%

Substrate integrated coaxial line design for mmWave antenna with multilayer configuration

Luo

Shen

Cai

et al. 2022

Int J RF Mic Comp-Aid Eng

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In the 5G communication utilizing millimeter-wave (mmWave) band, multilayer configuration is popular for mmWave antenna with module-level integration and high-density design. However, multilayer construction adds several substrate layers and metallic ground layers to RF signal paths, which induces extra capacitances and inductances to the original antenna, thereby deteriorating impedance matching, and distorting radiation patterns. In this paper, we investigate the influence of multilayer structure on antenna performances, and apply substrate integrated coaxial line (SICL) design to eliminate these interferences from multilayer configuration. Equivalent circuit model of the multilayer configuration with SICL is presented and verified by simulations. A mmWave antenna unit and the 1 Â 4 array in multilayer configuration with SICL design are measured. Experiments show that SICL design enables impedance matching and radiation patterns to be maintained without distortions when applying multiple layers to the mmWave antenna, validating this method. It can be applied to 5G mmWave antennas that desire multilayer construction.

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“…Different types of antennas have been designed for 77 GHz automotive radars. However, patch antennas are still the most popular ones [3][4][5] due to their low profile, low cost, and excellent compatibility with integrated circuits. A single patch antenna performs low-gain characteristic [6].…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization for 77 GHz Series-Fed Patch Array Antenna Based on Genetic Algorithm

Yang

Zhang

et al. 2020

Sensors

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This paper proposes a method for designing a 77 GHz series-fed patch array antenna. Based on the traditional genetic algorithm, the study explores different array topologies consisting of the same microstrip patches to optimize the design. The main optimization goal is to reduce the maximum sidelobe level (SLL). A 77 GHz series-fed patch array antenna for automotive radar was simulated, fabricated, and measured by employing this method. The antenna length was limited to no longer than 3 cm, and the array only had a single compact series with the radiation patch about 1.54 mm wide. In the genetic algorithm used for optimization, the maximum sidelobe level was set equal to or less than −14 dB. The measurement results show that the gain of the proposed antenna was about 15.6 dBi, E-plane half-power beamwidth was about ±3.8°, maximum sidelobe level was about −14.8 dB, and H-plane half-power beamwidth was about ±30° at 77 GHz. The electromagnetic simulation and the measurement results show that the 77 GHz antenna designed with the proposed method has a better sidelobe suppression by over 4 dB than the traditional one of the same length in this paper.

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Low‐cost multi‐layer parasitic patch antenna array for 79 GHz automotive radar applications

Cited by 5 publications

References 9 publications

Wide Beam Antenna for MIMO-Based Automotive Radar Applications

Wide Beam Antenna for MIMO-Based Automotive Radar Applications

Substrate integrated coaxial line design for mmWave antenna with multilayer configuration

Design and Optimization for 77 GHz Series-Fed Patch Array Antenna Based on Genetic Algorithm

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