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Antennas for dual-band or multi-band operation

A multi-band, dual-band technology, applied in independent antenna unit combinations, antennas, antenna components, etc., can solve the problems of increasing and doubling installation costs, and achieve the effects of large distances, improved cooling, and reduced filter costs.

Active Publication Date: 2019-04-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This results in a doubling of base stations, antenna equipment and other required infrastructure components
[0006] Additionally, the installation costs are increased due to the increased wind loads that must be protected accordingly

Method used

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  • Antennas for dual-band or multi-band operation
  • Antennas for dual-band or multi-band operation
  • Antennas for dual-band or multi-band operation

Examples

Experimental program
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Embodiment Construction

[0055] The following first reference figure 1 , which schematically depicts an antenna array 1 with a number of dipole antennas 3 , wherein in particular only the uppermost and lowermost dipole antennas are plotted and only the intervening dipole antennas are implied. In principle, this can be a dipole antenna which radiates and receives only in the polarization plane or which is designed, for example, as a dual-polarized, circularly polarized or elliptically polarized radiator. So-called X-polarized radiators or dipole antennas 3 are frequently used, which transmit and receive in two mutually perpendicular polarization planes, wherein these planes are oriented at an angle of 45° to the vertical and / or horizontal.

[0056] exist figure 1 The dipole antennas 3 shown in hereinafter also generally referred to as radiators are each fed via multi-channel splitter filters 7, which are designed as two-channel splitters in the exemplary embodiment shown. directional filter because t...

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Abstract

The invention relates to an improved antenna for dual or multi-band operation, characterized by the following features, among others: the one connection (7a) of the multi-band combiner (7) is connected via a distribution network (9a) to a duplex combiner (15a) for transfer of the first frequency band (A) and the second connection (7b) of the multi-band combiner (7) is connected via a distribution network (9b) to a duplex combiner (15b) for transfer of the second frequency band (B), each duplex combiner (15a, 15b) has a damping / admission function such that the signals in the transmission band (Tx-A; Tx-B) to the common connection (16a, 16b) of the duplex combiner (15a, 15b) and, in the reverse, the signals present in the receiving band (Rx-A; Tx-B) are admitted on a separate connection (15"a, 15"b) and the multi-band combiner (7) has a stopband attenuation of at least 15 dB.

Description

technical field [0001] The invention relates to an antenna for dual-band or multi-band operation. Background technique [0002] Proven mobile radio antennas operate with radiators or radiator arrangements that can transmit and / or receive, for example, in two mutually perpendicular polarizations. [0003] Regardless of this, mobile radio antennas can often be adjusted with respect to their main radiation direction by a radiation angle deviating from the horizontal orientation, which radiation angle can preferably be changed remotely. [0004] Taking into account the permanent expansion of mobile radio networks, also in the case of new mobile radio devices which transmit and / or receive in other frequency ranges, the existing locations, in particular the same antenna masts, are preferably taken into account for the network structure. [0005] This results in a doubling of base stations, antenna equipment and other required infrastructure components. [0006] In addition, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/30H01Q1/24
CPCH01Q21/30H01Q1/246
Inventor M·格特尔F·罗特莫泽A·西奥
Owner TELEFON AB LM ERICSSON (PUBL)
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