Mitigating beam skew in multi-beamforming networks
By using a specific phase delay phase shifter to adjust the phase difference of adjacent antenna array elements in a multi-beamforming network, the beam skew problem is solved, and the stability of the beam direction and the miniaturization of the system is achieved.
CN114586238BActive Publication Date: 2025-08-08GALTRONICS USA INC
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Patent Information
- Application Number
- CN202080073097.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-10-18
- Filing Date
- 2020-05-29
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2040-05-29
AI Technical Summary
Technical Problem
The beam direction of the multi-beam antenna array is unstable when the frequency changes, resulting in different beam coverage areas and the inability to achieve closed-loop communication, especially in 3G, 4G and 5G mobile communication systems.
Method used
A series of phase shifters with specific phase delay performance are used between the matrix circuit and the antenna array element to eliminate or mitigate beam skew by adjusting the phase difference between adjacent antenna array elements.
Benefits of technology
Keep the beam direction stable when the frequency changes, ensure the consistency of the beam coverage area, support closed-loop communication, and reduce the physical size and cost of the system.
✦ Generated by Eureka AI based on patent content.
Abstract
Systems and methods are provided for a multi-beamforming network using an antenna array. A matrix circuit is provided for feeding elements of the antenna array to generate multiple beams. To address beam skew, a series of phase shifters with specific phase delay characteristics are used between the matrix circuit and the antenna array elements to mitigate beam skew. Linearly increasing or decreasing phase differences between signals fed to adjacent antenna array elements across the antenna array mitigate or eliminate beam skew in the resulting multi-beams. The phase shifters are programmed to provide this increasing or decreasing phase difference.
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