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Cross-frequency-band electromagnetic property measuring device and method of X band antennas

A technology of electromagnetic characteristics and measurement methods, applied in the direction of measuring devices, measuring electrical variables, measuring electricity, etc., can solve the problems of increasing system complexity and high cost, and achieve the effects of reducing costs, ensuring measurement accuracy, and simplifying the measurement system

Inactive Publication Date: 2014-02-26
毕春霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method puts forward higher requirements on the test platform, which not only increases the complexity of the system, but also increases the cost

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  • Cross-frequency-band electromagnetic property measuring device and method of X band antennas
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  • Cross-frequency-band electromagnetic property measuring device and method of X band antennas

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Embodiment Construction

[0026] The first object of the present invention is to provide a method for measuring cross-band electromagnetic characteristics of X-band antenna materials. The specific steps of this measurement method are as follows.

[0027] Step 1: Determine the mouth diameter and port characteristics of the X-band antenna. The X-band antenna is a corrugated lens antenna with an aperture diameter of 30cm and a standard 3cm waveguide port. The working frequency band of the antenna is 8.2GHz~12.4GHz, which has good VSWR and directivity indicators in this frequency band.

[0028] Step 2: Determine the gradient waveguide segment from X-band to other bands

[0029] The tapered waveguide sections from X-band to P-band, X-band to K-band, and X-band to R-band have better standing wave and attenuation characteristics. The standing wave ratio is less than 1.05 in the whole frequency band, and the attenuation is 0.1dB.

[0030] Step 3: Establish an X-band open-loop antenna material electromagnet...

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Abstract

The invention relates to a cross-frequency-band electromagnetic property measuring device and method of X band antennas. The electromagnetic property measuring device comprises a testing fixture which is connected with the first X band antenna and the second X band antenna, the first X band antenna is connected with a first cable through a first X band waveguide coaxial adaptor, the second X band antenna is connected with a second cable through a second X band waveguide coaxial adaptor, and the first cable is connected with the second cable through a network analysis meter and a calibration piece. The cross-frequency-band electromagnetic property measuring device and method of the X band antennas can simplify multiple sets of systems into one set of broadband testing system, and the cost is effectively lowered.

Description

technical field [0001] The invention relates to a system for measuring cross-band electromagnetic characteristics of antenna materials, in particular to a measuring device and method for cross-band electromagnetic characteristics of X-band antennas. Background technique [0002] The measurement technology of electromagnetic properties of materials is of great significance in information technology, especially in military equipment and aerospace related technologies. The open-loop antenna electromagnetic characteristic test system has been developed by many scientific research institutions at home and abroad with the advantages of non-contact and non-destructive loops. One of its cores is the antenna. [0003] In order to ensure accurate measurement of electromagnetic parameters of materials, the antenna should be selected with high directivity and good VSWR performance. Usually the working frequency band of the antenna design is equal to or less than a waveguide band. In th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 张娜张国华刘杰成俊杰高春彦陈婷
Owner 毕春霞