Apparatus for measuring a radiation pattern of an active antenna arrangement

A technology of active antenna and measuring equipment, applied in the direction of antenna radiation pattern, measuring device, measuring electric variable, etc., can solve the impossible, measure active antenna and other problems

Inactive Publication Date: 2012-12-19
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not possible to use this instrument to measure active antenna

Method used

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  • Apparatus for measuring a radiation pattern of an active antenna arrangement
  • Apparatus for measuring a radiation pattern of an active antenna arrangement
  • Apparatus for measuring a radiation pattern of an active antenna arrangement

Examples

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Embodiment Construction

[0030] figure 2 A measuring device according to the invention for measuring the radiation pattern of an active antenna arrangement A under test is shown. Active antenna arrangements include individual radios with dedicated antenna elements that communicate with each other.

[0031] The measuring equipment comprises a common module CM, a calibration radio Rcal and a calibration probe, ie an antenna. The calibration antennas within the active antenna arrangement A can be replaced by other arrangements to arrange physical feedback from each individual active antenna radio to the calibration radio Rcal.

[0032]The calibration radio Rcal may be a modified BTS radio with opposite uplink and downlink frequencies, or it may be a modified mobile phone radio with an interface allowing it to be connected to the common module CM. The antenna connected to the calibration radio Rcal represents the reference antenna of the near-field measurement system.

[0033] The common module CM inc...

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Abstract

An apparatus for measuring a radiation pattern of an active antenna arrangement is provided, where the active antenna arrangement includes one or more radios having dedicated antenna elements in communication with each other. The apparatus has a common module external to the active antenna arrangement and a calibration radio, which is also external to the active antenna arrangement and coupled to the common module. The common module includes a transmit / receive unit and interfacing means for interfacing the common module with the active antenna arrangement, with the calibration radio and with a network node. The common module further includes a measurement device for measuring signals received from the active antenna arrangement.

Description

technical field [0001] The present invention generally relates to an apparatus for measuring a radiation pattern of an active antenna arrangement. More particularly, the invention relates to the measurement of the radiation pattern of an active antenna arrangement by using near-field measurement methods. Background technique [0002] In a wireless communication system, when several coordinated radios associated to a common signal are working together, where each of the coordinated radios is directly connected to each radio only some antenna elements, larger An antenna array is formed. There is an optimal radiation pattern and sensitivity that the antenna array should have. [0003] When the antenna elements are not connected to the radio, the radiation patterns of some antenna elements specific to one radio can easily be measured separately. Any near-field antenna measurement system or far-field antenna measurement system can be used. However, this is not sufficient when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10
CPCG01R29/105G01R29/10
Inventor J.T.帕洛南
Owner NOKIA NETWORKS OY
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