Array design method for hemispherical coverage beam forming

A technology of beamforming and design method, applied in antenna arrays, devices for manufacturing antenna arrays, antenna combinations with different interactions, etc., can solve problems such as side lobe level attenuation, array radiation energy waste, etc., to meet performance requirements , Simple structure, low cost effect

Inactive Publication Date: 2017-01-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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Problems solved by technology

However, in many applications, we do not want the array radiated energy to be wasted at the edge of the region of interest or outside the region of interest, so we hope that the side lobe level is attenuated

Method used

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  • Array design method for hemispherical coverage beam forming
  • Array design method for hemispherical coverage beam forming
  • Array design method for hemispherical coverage beam forming

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Embodiment Construction

[0020] The technical solution of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0021] DOA estimation is performed on the collected signal, and the weight value of each array element is calculated with the estimated direction to obtain the corresponding value, and then the signal is beamformed through the array to generate a qualified signal.

[0022] Main Specifications:

[0023] Working frequency: 4400MHz~5000MHz;

[0024] Bandwidth: 50MHz;

[0025] Duplex mode: TDD;

[0026] Total antenna coverage: horizontal 360°, vertical -10° to +90°;

[0027] Antenna gain: single;

[0028] Polarization mode: right-handed circular polarization;

[0029] Axial ratio: within the beam ≤ 3dB;

[0030] 3dB lobe width: ≤30°;

[0031] Side lobe suppression: ≥15dB;

[0032] Number of array elements: ≤25;

[0033] Neighbor discovery time: ≤100ms

[0034] Beam alignment time: ≤5μs.

[0035] Maximum number of n...

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Abstract

The invention belongs to the technical field of wireless communication, and mainly relates to a hemispherical coverage beam forming technology for special arrays. According to an array design method for hemispherical coverage beam forming, a frustum conformal array is formed by 24 six-element sub-arrays, and an antenna performs coverage in an omnidirectional manner in the 360-degree range of the horizontal plane and performs coverage in the 0-62.3-degree range of the pitch angle. In the communication process, low-cost and accurate hemispherical coverage beam forming can be realized, and the performance demand of a system is met; and compared with planar or curved conformal phased arrays, the structure is simple, and innovation is achieved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and mainly relates to a hemispherical coverage beamforming technology for a special array. Background technique [0002] Signal processing by array has a good application prospect in modern communication, and has been developed rapidly in recent years. As people continue to put forward higher standards for the capacity and quality of communication systems, ordinary communication antennas can no longer fully meet the increasingly higher performance index requirements. Therefore, this requires us to adopt some technical means and methods to fully explore the other potentials of the antenna, so as to form an antenna system that meets the needs of modern communication. Then, in order to meet the requirements of modern communication systems for capacity and quality improvement, the design of array antennas has become a popular method. Due to different communication requirements, array...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q21/29
CPCH01Q21/0087H01Q21/293
Inventor 李雪葳岳光荣宋志群邹显炳
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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