Suppressing method for electromagnetic coupling between ship-borne coplanarly-arranged planar array antennas
A technology for laying out planes and electromagnetic coupling, which is applied in the field of electromagnetic coupling and can solve problems such as lack of suppression of surface waves
Active Publication Date: 2013-06-12
CHINA SHIP DEV & DESIGN CENT
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[0005] The technical problem to be solved by the present invention is to provide a method for suppressing electromagnetic coupling between ship-borne coplanar array antennas in order to solve the problem that the existing technology lacks an electromagnetic coupling suppression method for suppressing surface waves without substantially changing the layout of superstructures. method, which can effectively suppress the electromagnetic coupling of surface waves without changing the layout of the superstructure.
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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] The method for suppressing electromagnetic coupling between ship-borne coplanar arrangement planar array antennas provided by the present invention has the following steps:
[0028] (1) Determine the electromagnetic coupling parameters of the coplanar planar array antenna loaded on the ship, including operating frequency, array spacing, etc.;
[0029] Assume that the antenna works at the center frequency of the S-band (3GHz, wavelength 10cm), and the distance between the antenna arrays is 2m.
[0030] (2) Judging the way of electromagnetic coupling between planar arrays in coplanar arrangem...
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The invention discloses a suppressing method for electromagnetic coupling between ship-borne coplanarly-arranged planar array antennas. The suppressing method comprises the following steps of: determining electromagnetic coupling parameters of the coplanarly-arranged planar array antennas; judging whether the electromagnetic coupling between the coplanarly-arranged planar array antennas is mainly centralized on direct electromagnetic wave coupling, or is mainly centralized on surface wave coupling under the condition of coplanar arrangement, or is equally centralized on both direct electromagnetic wave coupling and surface wave coupling; and when the electromagnetic coupling between the coplanarly-arranged planar array antennas is mainly centralized on the surface wave coupling, laying a ripple structure between the planar array antennas, wherein the upper end of the ripple structure and a planar array surface are at the same height; or when the electromagnetic coupling between the coplanarly-arranged planar array antennas is equally centralized on both direct electromagnetic wave coupling and surface wave coupling, laying a ripple structure between the planar array antennas, wherein the lower end of the ripple structure and the planar array surface are at the same height. The ripple structure is simple to arrange and is flexible and variable, and the suppressing method for electromagnetic coupling between ship-borne coplanarly-arranged planar array antennas is applicable to suppression of electromagnetic coupling under the situation that the electromagnetic coupling is mainly centralized on surface wave coupling or is equally centralized on both direct electromagnetic wave coupling and surface wave coupling.
Description
technical field [0001] The invention relates to the field of electromagnetic coupling, in particular to a method for suppressing electromagnetic coupling between planar array antennas arranged in a shipboard coplanar manner. Background technique [0002] Many planar array antennas are often mounted on modern ships. Due to the limited space of the superstructure, the planar array antennas are often arranged in a coplanar manner, which leads to the emergence of mutual electromagnetic coupling. Therefore, how to effectively suppress the spatial electromagnetic coupling of planar array antennas is very important for improving the electromagnetic compatibility of ships. [0003] For such problems, traditional electromagnetic coupling suppression methods mainly include baffle shielding. However, this method needs to protrude a large baffle on the superstructure for shielding, thereby significantly destroying the original layout of the ship's superstructure. How to suppress the e...
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IPC IPC(8): H01Q1/52H01Q1/34
Inventor 方重华宋东安张崎孙光甦潘镜芙
Owner CHINA SHIP DEV & DESIGN CENT