A low sidelobe multibeam slot array antenna fed by rotman lens

A broadband high-gain millimeter-wave (mmWave) array beamforming network (BFN) design, analysis, and implementation based on the Rotman lens antenna array feeding are presented. The BFN is intended for operation in the (26-40) GHz frequency band for a wide range of potential applications in the fifth generation (5G). The system is made on Rogers substrate, RO6010, to provide compatibility with standard planar low-cost processing techniques for millimeter-wave monolithic integrated circuit (MMIC). The measured results show the system capability of 80 • beam scanning for different angles at −39.7 • , −26.5 • , −13.3 • , 0 • , +13.3 • , +26.5 • , and +39.5 • at 28 GHz. With these features in addition to being compact size, low profile, and lightweight, this BFN is suitable for various millimeter-wave and 5G applications such as the advanced multi-in multi-out (MIMO) systems, remote sensing, and automotive radar.

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“…4 as initial guess. Further optimization can be done using (7) and (8) to ensure optimum performance for both of amplitude and phase.…”

Section: Calculate the Minimum Required Number Of Rotmanmentioning

confidence: 99%

Optimum Wideband High Gain Analog Beamforming Network for 5G Applications

2019

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“…This solution also contributes to antenna size reduction at the expense of a relatively complex dielectric stack-up. The authors have previously simulated the multibeam antenna and simply analysed the performance of radiating patterns with low sidelobes [11]. Further explanations, analyses, results, and validation are presented in this study.…”

Section: Introductionmentioning

confidence: 99%

Compact Rotman lens‐fed slot array antenna with low sidelobes

Liu

Yang

Zeng³

et al. 2018

IET Microwaves, Antennas & Propagation

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A slot array in substrate‐integrated waveguide (SIW) technology fed by a microstrip Rotman lens is proposed. This compact multibeam antenna is designed in two layers using a novel transition based on double‐stepped coupling slots on the broad wall of SIWs. Compared with a rectangular transverse coupling slot, this transition is broadband and its coupling power can be controlled for low‐sidelobe applications. The radiating part is a 10 × 10 slot array and the beam‐forming network can generate seven beams with good coverage from −30° to 30° in the azimuthal plane. To validate the proposed concept, an antenna prototype is implemented at 10 GHz. The frequency response and measured radiation patterns are in good agreement with simulated results provided by full wave simulation software. Experimental results show that the sidelobe level is lower than −21 dB for the central beam in both H and E planes and better than −18 dB for the edge beams.

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Multi-beam antenna based on Rotman Lens in X band

Hou

Liu

2021

2021 Computing, Communications and IoT Applications (ComComAp)

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A low sidelobe multibeam slot array antenna fed by rotman lens

Cited by 3 publications

References 13 publications

Optimum Wideband High Gain Analog Beamforming Network for 5G Applications

Optimum Wideband High Gain Analog Beamforming Network for 5G Applications

Compact Rotman lens‐fed slot array antenna with low sidelobes

Multi-beam antenna based on Rotman Lens in X band

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