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Feed network for multi-element antenna

A vibrator antenna and antenna technology, applied in the field of feeder network, can solve the problem of large requirements for radiation patterns, and achieve the effect of shortening the circuitous line

Active Publication Date: 2016-08-10
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such radiator distances are possibly too large for the requirements on the radiation pattern

Method used

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  • Feed network for multi-element antenna
  • Feed network for multi-element antenna
  • Feed network for multi-element antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] exist figure 1 A multi-element antenna (antenna array) according to the prior art is shown in a schematic side view in . Such multi-element antennas can be used, for example, in base stations for mobile radio communication antennas.

[0059] In the illustrated embodiment, the multi-element antenna includes three radiators 3 or radiator devices (which may also be radiator modules, etc.) staggered from each other. Usually, in mobile radio communication antennas, the radiators 3 are arranged vertically offset from one another at the same distance, usually in front of the reflector. In this case, the radiator 3 can be a dipole radiator, a patch radiator or another radiator. Either single polarized radiators or dual polarized radiators can be used. In principle, the antenna can be designed such that it radiates or receives in one or more frequency bands.

[0060] In the illustrated embodiment only the basic variants are described, e.g. for the polarization (for the other...

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PUM

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Abstract

A group antenna has at least two transducers disposed offset from one another. A network is provided to supply the transducers. The network comprises coaxial cables running between a distributor and / or summation circuit and the access, connection, and / or supply points of the associated transducer. The network comprises at least two different types of coaxial cable characterized by different phase velocities.

Description

technical field [0001] The invention relates to a feeding network for a multi-element antenna. Background technique [0002] A multi-element antenna is generally understood to be an antenna in which a plurality of radiators or radiator modules are arranged offset from one another, at least in one column (or row). However, such a multi-element antenna (also commonly referred to as an antenna array) may also include a plurality of radiators arranged staggered in the horizontal and vertical directions, that is, radiator elements or radiator devices or radiator modules. In the area of ​​mobile radio communications, for example, single-column, dual-column or multi-column antenna arrays are frequently provided. In this case, the individual radiators used may be, for example, dipoles and patch antennas. It is also possible to use single-polarized radiators or dual-polarized radiators, which can radiate and / or receive only in one frequency band or jointly in several frequency band...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/08H01Q3/32
CPCH01Q21/0006
Inventor M·格特尔M·博斯
Owner TELEFON AB LM ERICSSON (PUBL)