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signal distribution network

A technology for signal distribution and signal splitting, which is applied in the directions of antennas, electrical components, and antenna arrays that are energized separately. It can solve problems such as complex forming and achieve the effect of avoiding complexity.

Active Publication Date: 2021-10-26
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analog beamforming is generally less complex than digital beamforming, but precision and careful design may be required to meet the required phase accuracy
Another limitation of analog beamforming is that analog beamforming inherently only supports a single beam

Method used

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Embodiment Construction

[0032] The inventive concepts will now be described more fully hereinafter with reference to the accompanying drawings, in which specific embodiments of the invention are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. Throughout the specification, like symbols refer to like elements. Any method steps shown by dashed lines should be considered optional.

[0033] As mentioned above, it is an object of the embodiments herein to provide an efficient distribution network for antenna arrangements.

[0034] Furthermore, in view of the issues listed above, it may be desirable to provide a distribution network for antenna arrangements that is capable of reducing the number of digital tra...

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PUM

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Abstract

A signal distribution network for an antenna arrangement having fewer input ports than antenna elements is provided. The signal distribution network includes at least two signal splitters. The signal distribution network includes at least one signal combiner. Each signal splitter is configured to receive an input baseband signal from a unique input port and provide a direct feed signal as an input to a unique antenna element, and provide an intermediate signal as an input to one of the at least one signal combiner at least one. Each signal combiner is configured to receive two intermediate signals, each intermediate signal being received from a corresponding one of the at least two signal splitters, and to provide a combined signal as input to a unique antenna element, one of which A combined signal is formed by combining the two received intermediate signals.

Description

technical field [0001] Embodiments presented herein relate to signal distribution networks of antenna arrangements having fewer input ports than antenna elements, and methods and computer program products for signal processing in signal distribution networks of antenna arrangements having fewer input ports than antenna elements. Background technique [0002] In a communication network, it is challenging to achieve good performance and capacity for a given communication protocol, its parameters and the physical environment in which the communication network is deployed. [0003] One component in a wireless communication network that can struggle to achieve good performance and capacity is the antenna. For example, in order to perform beamforming of one or more antenna beams / lobes (eg, beamwidth and beam pointing steering) in a desired direction of the array antenna, the amplitude and relative phase of the individual signals fed to the individual antenna ports need to be contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/26H01Q3/40H01Q21/00
CPCH01Q3/26H01Q3/40H01Q21/0006H01Q3/28H01Q21/22H01Q3/2605H04B7/0617
Inventor 约翰·托雷贝克
Owner TELEFON AB LM ERICSSON (PUBL)