An Overlapped Switched-Beam Antenna Array With Omnidirectional Coverage for 2.4/5.8 GHz Three-Channel MIMO WLAN Applications

Tao, Sihong; Zhao, Huapeng; Ban, Yong-Ling; Chen, Zhizhang

doi:10.1109/lawp.2019.2953453

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…For example, both rectangular patch antennas 6,7 and Yagi antennas 8–10 can be used in circular arrays, however, which suffer from narrowband characteristics. In addition, the switched‐beam array, 11 which is composed of 12 inverted‐F antennas, suffers from a poor port isolation. Using the V‐shaped dipoles 12 and slot antennas 13,14 to compose the circular array also suffers from similar problems.…”

Section: Introductionmentioning

confidence: 99%

Switched‐beam circular array with ultra‐wideband ridged horn elements

Li,

Qu,

Yang

2023

Micro & Optical Tech Letters

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A switched‐beam circular array with ultra‐wideband ridged horn elements is proposed in this letter. To obtain stable radiation patterns in a broadband as well as in a large coverage in the elevation plane, the electromagnetic fields in the ridged horn antenna are analyzed by the mode decomposition method. Based on the analysis, the rear of the ridged horn is cut. Besides, the ridge extension, out of the horn aperture, serves as a transformer from the horn to the free space for the downward radiation caused by the horn aperture asymmetry. The simulated results show that the circular array can obtain omnidirectional beam coverage in the range of θ = 50°–100° from 2.2 to 5.9 GHz, with the S11 below −10 dB and the gain higher than 5 dBi. The performance of the proposed antenna is validated by experiments.

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Section: Introductionmentioning

confidence: 99%

Switched‐beam circular array with ultra‐wideband ridged horn elements

Li,

Qu,

Yang

2023

Micro & Optical Tech Letters

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“…Antenna arrays are widely applied in many fields such as radar, communication, detection, and imaging due to the flexibility of their beam design [1][2][3][4]. By arranging the layouts and excitation signals of antenna elements, the antenna array can achieve many excellent performances that a single antenna cannot, such as higher gain, lower sidelobe level, and multi-beams.…”

Section: Introductionmentioning

confidence: 99%

High‐efficient optimisation method of antenna array radiation pattern synthesis based on multi‐layer perceptron network

Zhang

Huang

Niu

et al. 2022

IET Microwaves Antenna & Prop

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With the increasing complexity of the application environment of antenna arrays and the increasing requirements for antenna array radiation patterns, efficient optimisation methods of antenna array radiation pattern synthesis have always been the challenges of the research. This paper proposes a method of utilising a multi‐layer perceptron network to optimise the radiation patterns of antenna array. The optimisation requirements of the antenna array radiation pattern are described by defining the objective mask function, which is designed to shape the target radiation pattern by desired features. Simulation experiments have been designed with a variety of antenna array layouts, of which the radiation patterns with different requirements were successfully synthesised and optimised. The results show that the proposed method has high efficiency and satisfactory optimisation effect in dealing with the problem of complex radiation pattern requirements.

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