Unlock instant, AI-driven research and patent intelligence for your innovation.

A device supporting multi-band beamforming

A beamforming, multi-band technology, applied in electrical components, antennas, etc., can solve problems such as inability to control independently, limited space for antenna reflectors, and difficulty in ensuring a reasonable layout of the feeder network.

Active Publication Date: 2016-04-27
WUHAN HONGXIN TELECOMM TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the way to support multi-band beamforming is to design a group of feed networks (composed of power dividers and coaxial cables or microstrip lines) that support multi-bands. The biggest problem is that each frequency band cannot be independently controlled. ; or design multiple sets of feeding networks that support multiple frequency bands. Although each frequency band can be independently controlled, it is often difficult to ensure a reasonable layout of each feeding network due to the limited space of the antenna reflector

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A device supporting multi-band beamforming
  • A device supporting multi-band beamforming
  • A device supporting multi-band beamforming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] For the PCB board microstrip combiner in the solid line box, the two branches correspond to the high-frequency signal port port1 and the low-frequency signal port port2 respectively. The signal is input through port1 and passes through the microstrip line, which has frequency selection characteristics, because five levels are added to the branch of the corresponding microstrip line Metal open stub ( figure 2 The middle marks are 4, 5, 6, 7, 8, the length of λ1 is the electromagnetic wave wavelength corresponding to the center frequency point of the low-frequency radio frequency signal), and the path difference of the reflection phase of the low-frequency signal is used to realize that the high-frequency signal is a high-pass signal, while Low frequency signals are cutoff signals. The signal is input through port2 and passes through the microstrip line, which has frequency selection characteristics, because five levels are added to the branch of the corresponding micr...

Embodiment 2

[0032] For the PCB board microstrip combiner in the solid line box, the two branches correspond to the high-frequency signal port port1 and the low-frequency signal port port2 respectively. The signal is input through port1 and passes through the microstrip line, which has frequency selection characteristics, because five levels are added to the branch of the corresponding microstrip line Metal open stub ( figure 2 The middle marks are 6, 7, 8, 9, 10, the length of λ1 is the electromagnetic wave wavelength corresponding to the center frequency point of the low-frequency radio frequency signal), and the path difference of the reflection phase of the low-frequency signal is used to realize that the high-frequency signal is a high-pass signal, and Low frequency signals are cutoff signals. The signal is input through port2 and passes through the microstrip line, which has frequency selection characteristics, because five levels are added to the branch of the corresponding micro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device for supporting multi-band frequency beamforming. The device comprises a coaxial-cable power divider and a micro-strip combiner; the coaxial-cable power divider and the micro-strip combiner are connected; a micro-strip line of the micro-strip combiner comprises a combining port; two branches of the micro-strip line are respectively provided with a high frequency signal port and a low frequency signal port; the coaxial-cable power divider is provided with an input port and two or more than two power distributing ports; the two branches of the micro-strip line are respectively provided with five or more than five metal opening subsections; each metal opening subsection on the branch provided with the high frequency signal port is lambda1 / 4 in length, the length of lambda1 is electromagnetic wave length corresponding to a central frequency point during work of low-frequency radio-frequency signals, each metal opening subsection on the branch provided with the low frequency signal port is lambda2 / 4 in length, and the length of lambda2 is electromagnetic wave length corresponding to a central frequency point during work of high-frequency radio-frequency signals. A set of feed network simultaneously supports multi-band frequency beamforming, and the high frequency signals and the low frequency signals can be controlled independently.

Description

technical field [0001] The invention relates to the technical field of mobile communication base station antennas, in particular to a device supporting multi-band beam forming. Background technique [0002] The vertical plane beam forming of the base station antenna refers to the reasonable design and shaping of the vertical plane pattern of the antenna, so as to achieve the precise design of the antenna electrical downtilt and the level value of the antenna's upper side lobe (or upper side lobe) Strict control is carried out, and sometimes even the first zero point of the lower part of the antenna must be filled to avoid the phenomenon of no signal within a certain range directly below the base station (also known as the "black under the tower" phenomenon). The beamforming of the antenna is mainly realized by controlling the amplitude and phase of the basic radiation unit of the array antenna. The amplitude is mainly realized by a power divider, and the phase is realized by...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/28H01Q3/42
Inventor 郭继权李孜王杰程猛
Owner WUHAN HONGXIN TELECOMM TECH CO LTD