Calculation Method of Radiated Power Density of Mobile Communication Base Station Antenna

A mobile communication base station and antenna radiation technology, which is applied in the field of calculation of mobile communication base station antenna radiation power density, can solve the problems that the electromagnetic radiation power density and prediction of base station antennas cannot be realized, and achieve high accuracy and improve accuracy

Active Publication Date: 2017-06-06
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, at present, for the prediction of electromagnetic radiation of base station antennas, "Guidelines for Radiation Environmental Protection Management Electromagnetic Radiation Monitoring Instruments and Methods" (HJ / T 10.2—1996) only gives the calculation method of axial power density, which cannot realize the calculation method of other directions of base station antennas. Prediction of Electromagnetic Radiation Power Density

Method used

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  • Calculation Method of Radiated Power Density of Mobile Communication Base Station Antenna
  • Calculation Method of Radiated Power Density of Mobile Communication Base Station Antenna
  • Calculation Method of Radiated Power Density of Mobile Communication Base Station Antenna

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Embodiment Construction

[0029] Taking the GSM900 antenna of a mobile communication base station as an example below, the downtilt angle of this antenna is 5°. The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limitations of the present invention.

[0030] Such as figure 1 As shown, the implementation steps of the mobile communication base station antenna radiation power density calculation method in this embodiment are as follows:

[0031] 1) An antenna vertical normalized direction function shown in formula (1) and a horizontal plane normalized direction function shown in formula (2) are established for the antenna of the mobile communication base station;

[0032]

[0033]

[0034] In formulas (1) and (2), F(θ) represents the normalized direction function of the antenna vertical plane, n represents the number of antenna elements, k represents the wave number of the bas...

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Abstract

The invention discloses a method for calculating the radiation power density of an antenna of a mobile communication base station. The method comprises the steps that a horizontal plane normalization directivity function and a vertical plane normalization directivity function are established, a measuring point away from a vertical plane by the assigned distance is selected for the antenna, the fitting coefficient of the horizontal plane normalization directivity function of the antenna is obtained by obtaining the antenna radiation power data at the measuring point and performing fitting, the final gain value from the antenna of the mobile communication base station to an antenna panel is determined based on the antenna theoretical gain value of the mobile communication base station, a computing model for the radiation power density of the antenna of the base station is established according to the fitting coefficient of the horizontal plane normalization directivity function of the antenna and the finial gain value from the antenna to the antenna panel, and the antenna radiation power density suitable for any azimuth angle can be worked out. The method has the advantages of being high in accuracy and suitable for any azimuth angle.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a method for calculating the radiation power density of a mobile communication base station antenna, which is suitable for accurate prediction of the radiation power density of a mobile communication base station antenna and environmental quality evaluation at any azimuth angle. Background technique [0002] In recent years, with the rapid development of my country's communication technology, the construction of mobile communication base stations has accelerated, and the environmental impact of electromagnetic radiation from mobile communication base stations has increasingly attracted widespread attention from the society. Power density is the main factor to evaluate the electromagnetic radiation level of base station antennas. Accurately predicting the electromagnetic radiation power density of base station antennas can provide guidance for base sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/10
Inventor 吕建红彭继文周年光
Owner STATE GRID CORP OF CHINA
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