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darkroom

A darkroom and box technology, applied in the field of measurement, can solve the problems of reducing measurement accuracy, increasing the number of components, reducing measurement accuracy, etc., to reduce the occupied space, eliminate electromagnetic reflection, and improve accuracy and consistency.

Active Publication Date: 2016-04-06
GENERAL TEST SYST
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004] The above-mentioned darkroom has the following problems: First, because the circular antenna bracket is set in the darkroom, the number of components is increased and the cost is increased, the circular antenna bracket occupies the space in the darkroom, and the circular antenna bracket will reflect the Electromagnetic waves, thus reducing the measurement accuracy
As a well-known source of strong measurement interference, communication cables will greatly reduce the accuracy of the measurement

Method used

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention discloses a darkroom. The darkroom comprises a shielding box, a wave-absorbing material layer and a plurality of measuring antennas, wherein the wave-absorbing material layer is arranged on an inner wall of the shielding box; and the measuring antennas are arranged on the inner wall of the shielding box and are suitable for being connected with a cable outside the shielding box. The darkroom has the advantages of being low in manufacturing cost and small in occupied space and improving wireless communication measurement accuracy and consistency.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to an anechoic room for wireless communication performance parameter measurement. Background technique [0002] The mobile terminal shall test the communication performance according to the CTIA (Mobile Communications Network Association) standard when performing the network access test. According to the CTIA standard, after measuring the tested part at different spatial positions on the spherical surface with the tested part as the center, the corresponding indicators are obtained by comprehensively calculating all the test results. The measurement system used for this kind of test usually requires a specific test environment, for example, a microwave anechoic chamber is required to eliminate the influence of environmental noise on the measurement results. [0003] The shielding box of an existing microwave anechoic chamber is usually in the shape of a cuboid, and a circular a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00G01R31/00H04B17/391
Inventor 刘克峰漆一宏谢乔治谢辉
Owner GENERAL TEST SYST
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