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Multi radiator antenna comprising means for indicating antenna main lobe direction

A technology for radiators and antennas, which is applied to antenna components, mid-position feeds between antenna endpoints, and antenna directions, which can solve problems such as difficulty in determining the actual electrical tilt, and achieve the effect of a robust and reliable antenna

Inactive Publication Date: 2018-09-28
CELLMAX TECH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of this arrangement, as well as other known arrangements, is that it may be difficult to determine the actual electrical tilt achieved by moving the dielectric portion

Method used

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  • Multi radiator antenna comprising means for indicating antenna main lobe direction
  • Multi radiator antenna comprising means for indicating antenna main lobe direction
  • Multi radiator antenna comprising means for indicating antenna main lobe direction

Examples

Experimental program
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Embodiment Construction

[0036] figure 1 Schematic illustration of a multi-radiator antenna 1' comprising an antenna feed network 2', in figure 1 A conductive reflector 17' schematically shown in , and a plurality of radiating elements 14'. Radiating element 14' may be a dipole antenna. The antenna feed network 2' connects the coaxial connector 10' to a plurality of radiating elements 14' via a plurality of wires 6', which may be at figure 1 The coaxial cable schematically illustrated in . In this example, a three-stage splitter / combiner 18' is used to split / combine signals to / from connector 10'.

[0037] figure 2 A multi-radiator antenna 1 according to an embodiment of the invention is shown seen from the rear side of the antenna. The antenna comprises an antenna feeding network 2 and a protective cover 3, the protective cover covers the rear side of the antenna feeding network to provide protection for the antenna feeding network. The front side (not visible) of the antenna feed network is pr...

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PUM

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Abstract

A multi radiator antenna comprising an electrically conductive reflector, at least two radiating elements arranged on the reflector, a feeding network connected to the radiating elements, and a protective cover. The feeding network comprises a plurality of conductors for distributing signals to the radiators. The feeding network has means for adjusting relative phases of the signals in order to adjust a direction of the antenna main lobe of the multi-radiator base station antenna. The means for adjusting is provided with, or is connected to, an indicating portion configured to provide a visualindication of the direction. The protective cover is provided with an at least partially transparent wall portion arranged such that the indicating portion is visible there through.

Description

technical field [0001] The invention relates to the field of multi-radiator antennas comprising a feed network with at least one coaxial cable. Background technique [0002] Multi-radiator antennas are often used, eg in cellular networks. Such multi-radiator antennas comprise several radiating antenna elements, for example in the form of dipole antennas, an antenna feed network and a conductive reflector for transmitting or receiving signals. The antenna feed network distributes signals from the shared coaxial connector to the radiators when the antenna transmits and combines the signals from the radiators and feeds the signals to the coaxial connectors when received. exist figure 1 A possible implementation of such a feed network is shown in . [0003] In such networks, if the splitter / combiner consists of (for example) a junction between 3 different 50 ohm wires, then impedance matching will not be maintained and the impedance seen from each port will be 25 ohms, not 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/30H01P1/18H01P5/00H01Q3/00H01Q21/08
CPCH01P1/183H01P3/06H01Q1/246H01Q1/42H01Q3/32H01P5/00H01Q3/00H01Q3/30H01Q21/0006H01Q21/08H01Q9/16H01Q19/10
Inventor 尼克拉斯·于曼
Owner CELLMAX TECH AB