CN103151614A - Suppressing method for electromagnetic coupling between ship-borne coplanarly-arranged planar array antennas - Google Patents
Suppressing method for electromagnetic coupling between ship-borne coplanarly-arranged planar array antennas Download PDFInfo
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- CN103151614A CN103151614A CN2013100566378A CN201310056637A CN103151614A CN 103151614 A CN103151614 A CN 103151614A CN 2013100566378 A CN2013100566378 A CN 2013100566378A CN 201310056637 A CN201310056637 A CN 201310056637A CN 103151614 A CN103151614 A CN 103151614A
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Abstract
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
The present invention relates to the electromagnetic coupled field, relate in particular to the inhibition method of electromagnetic coupled between a kind of boat-carrying co-planar arrangement planar array antenna.
Background technology
Tend to be mounted with the multi-section planar array antenna on Modern Ships, due to the superstructure limited space, adopt co-planar arrangement in the more situation of planar array antenna, thereby cause mutual electromagnetic coupled to show especially.Therefore, how effectively to suppress planar array antenna space electromagnetic coupled extremely important for the Electro Magnetic Compatibility that promotes the naval vessel.
For problems, traditional electromagnetic coupled inhibition method mainly contains baffle plate and blocks.But this method need to be stretched out a bulk of baffle plate and blocked in superstructure, thereby has destroyed significantly original naval vessel superstructure layout.How in the situation that do not change the superstructure layout as far as possible, electromagnetic coupled has been implemented to be suppressed to problem anxious to be resolved in the Practical Project.In addition, the baffle plate occlusion method can only suppress for the direct projection electromagnetic wave along spatial effectively, and is helpless for the coupled surface ripple that also exists under the co-planar arrangement condition.
Therefore, for electromagnetic coupled situation between the naval vessel planar array antenna, a kind ofly substantially do not changing under the superstructure distributional condition, can suppress the electromagnetic coupled inhibition method of surface wave in the urgent need to seeking.
Summary of the invention
The technical problem to be solved in the present invention is for lacking in prior art in the problem that does not substantially change the electromagnetic coupled inhibition method of inhibition surface wave under the superstructure distributional condition, the inhibition method of electromagnetic coupled between a kind of boat-carrying co-planar arrangement planar array antenna is provided, can substantially not change under the superstructure distributional condition, the electromagnetic coupled of his-and-hers watches ground roll effectively suppresses.
The technical solution adopted for the present invention to solve the technical problems is: the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna comprises the following steps:
(1) utilize the general layout of boats and ships to determine the electromagnetic coupled parameter of the co-planar arrangement planar array antenna that loads on ship;
(2) be to be coupled as the master with the direct projection electromagnetic wave according to electromagnetic coupled between the result judgement co-planar arrangement planar array that the co-planar arrangement planar array is carried out emulation or actual measurement, or be coupled as the master with the surface wave under the co-planar arrangement condition, or the coupling of direct projection electromagnetic wave is laid equal stress on the surface wave coupling;
(3) between the co-planar arrangement planar array, electromagnetic coupled is coupled as when main with surface wave, lays a ripple struction and be used for suppressing electromagnetic coupled between planar array, and the upper end of described ripple struction and plane front are with height; Be that ripple struction is arranged as sagging state;
Or, between the co-planar arrangement planar array, electromagnetic coupled is that the coupling of direct projection electromagnetic wave and surface wave are coupled when laying equal stress on, lay a ripple struction between planar array and be used for suppressing electromagnetic coupled, the lower end of described ripple struction and plane front are with high, and namely ripple struction is arranged as propradation.
By technique scheme, ripple struction is rectangle grooved ripple struction.
By technique scheme, ripple struction is the side plate of arranging on flat board perpendicular to flat board, and each side sheet room is apart from equating.
By technique scheme, the length and width size of described ripple struction is not more than the front spacing.
By technique scheme, the height of described ripple struction is 1/4 of wavelength, the groove segment number of ripple struction is not less than 10, and the length vertical with the coupled electromagnetic wave direction of propagation is not less than 5 wavelength, electromagnetic wavelength when its medium wavelength is the work of co-planar arrangement planar array antenna.
By technique scheme, the material that described ripple struction adopts is metal.
By technique scheme, the groove segment number of described ripple struction is 14.
By technique scheme, the length that described ripple struction is vertical with the coupled electromagnetic wave direction of propagation is 5 wavelength.
The beneficial effect that the present invention produces is:
1. ripple struction can carry out the layout of two states: sink and propradation, and flexible and changeable, comparatively be fit to be coupled as situation main or that the direct projection electromagnetic wave is coupled and the surface wave coupling is laid equal stress on surface wave.Can the surface wave coupling that baffle plate blocks unable processing be suppressed.
2. the height of ripple struction is less.More than typical radar microwave section S-band, wavelength/4 are no more than 2.5cm, and conformal with the antenna array height, thus on the layout of superstructure without impact.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the vertical view of laying between the planar array of the embodiment of the present invention after ripple struction;
Fig. 2 lays ripple struction to be the schematic diagram of the state that sink between the planar array of the embodiment of the present invention;
Fig. 3 is that to lay ripple struction between the planar array of the embodiment of the present invention be the schematic diagram of propradation;
Fig. 4 is the physical dimension schematic diagram of ripple struction of the laying of the embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna provided by the invention, step is as follows:
(1) determine the electromagnetic coupled parameter of the co-planar arrangement planar array antenna that loads on ship, comprise operating frequency, front spacing etc.;
Suppose that antenna works in the centre frequency of S-band (3GHz, wavelength 10cm), the antenna array spacing is 2m.
(2) electromagnetic coupled approach between judgement co-planar arrangement planar array, namely judge with the direct projection electromagnetic wave to be coupled as the master, or be coupled as the master with the surface wave under the co-planar arrangement condition.
By simulation calculation or the actual measurement to judge the electromagnetic coupled approach, at this we the hypothesis be coupled as the master with the surface wave under the co-planar arrangement condition.
(3) lay ripple struction between planar array, ripple struction is the state that sink, and namely the upper end of ripple struction and plane front are with high.
Fig. 1 is the vertical view after laying ripple struction between planar array, and wherein white line is the array element position.
Sagging state as shown in Figure 2; When electromagnetic coupled between the co-planar arrangement planar array is that direct projection electromagnetic wave coupling is when laying equal stress on the surface wave coupling, lay a ripple struction between planar array and be used for suppressing electromagnetic coupled, the lower end of ripple struction and plane front are with high, and namely ripple struction is for being propradation, as shown in Figure 3.
Ripple struction is rectangle grooved ripple struction; Ripple struction is the side plate of arranging on flat board perpendicular to flat board, and each side sheet room is apart from equal, and the rectangle and trapezium channel section that adjacent side plates consists of is rectangle, and the length and width size of ripple struction is not more than the front spacing.
As shown in Figure 4, can calculate the physical dimension of ripple struction according to wavelength, the height of ripple struction is wavelength/4, but predominant height is 2.5cm, the grooved number of cycles of ripple struction is 14, the length vertical with the coupled electromagnetic wave direction of propagation is 5 wavelength, i.e. the size 0.5m vertical with the coupled electromagnetic wave direction of propagation.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection range of claims of the present invention.
Claims (8)
1. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna, is characterized in that, comprises the following steps:
(1) utilize the general layout of boats and ships to determine the electromagnetic coupled parameter of the co-planar arrangement planar array antenna that loads on ship;
(2) be to be coupled as the master with the direct projection electromagnetic wave by electromagnetic coupled between the result judgement co-planar arrangement planar array that the co-planar arrangement planar array is carried out simulation calculation or actual measurement, or be coupled as the master with the surface wave under the co-planar arrangement condition, or the coupling of direct projection electromagnetic wave is laid equal stress on the surface wave coupling;
(3) between the co-planar arrangement planar array, electromagnetic coupled is coupled as when main with surface wave, lays a ripple struction between planar array, and the upper end of described ripple struction and plane front are with height;
Or between the co-planar arrangement planar array, electromagnetic coupled is that the coupling of direct projection electromagnetic wave and surface wave are coupled when laying equal stress on, and lays a ripple struction between planar array, and the lower end of described ripple struction and plane front are with high.
2. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna according to claim 1, is characterized in that, described ripple struction is the rectangular channel ripple struction.
3. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna according to claim 2, is characterized in that, described ripple struction is the side plate of arranging on flat board perpendicular to flat board, and each side sheet room is apart from equating.
4. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna according to claim 1, is characterized in that, the length and width size of described ripple struction is not more than the front spacing.
5. the inhibition method of electromagnetic coupled between according to claim 1 to 4 described boat-carrying co-planar arrangement planar array antenna, is characterized in that, the material that described ripple struction adopts is metallic conductor.
6. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna according to claim 5, it is characterized in that, the height of described ripple struction is 1/4 of wavelength, the groove segment number of ripple struction is not less than 10, the length vertical with the coupled electromagnetic wave direction of propagation is not less than 5 wavelength, electromagnetic wavelength when its medium wavelength is the work of co-planar arrangement planar array antenna.
7. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna according to claim 6, is characterized in that, the groove segment number of described ripple struction is 14.
8. the inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna according to claim 6, is characterized in that, the length that described ripple struction is vertical with the coupled electromagnetic wave direction of propagation is 5 wavelength.
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| CN201310056637.8A CN103151614B (en) | 2013-02-22 | 2013-02-22 | The inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna |
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| CN201310056637.8A CN103151614B (en) | 2013-02-22 | 2013-02-22 | The inhibition method of electromagnetic coupled between boat-carrying co-planar arrangement planar array antenna |
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| CN103151614A true CN103151614A (en) | 2013-06-12 |
| CN103151614B CN103151614B (en) | 2016-05-25 |
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Citations (8)
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|---|---|---|---|---|
| US4301456A (en) * | 1979-06-27 | 1981-11-17 | Lockheed Corporation | Electromagnetic wave attenuating surface |
| US5923302A (en) * | 1995-06-12 | 1999-07-13 | Northrop Grumman Corporation | Full coverage antenna array including side looking and end-free antenna arrays having comparable gain |
| US20060238427A1 (en) * | 2005-04-22 | 2006-10-26 | Ferguson Stanley D | Phased array antenna choke plate method and apparatus |
| DE102006012452A1 (en) * | 2006-03-17 | 2007-10-04 | Imst Gmbh | Photonic band gap structure for e.g. high frequency circuit, has reference ground surface, and edge provided with respect to direction parallel to surface, where edge and/or filter structures present on edge are connected with surface |
| US20080136710A1 (en) * | 2006-12-07 | 2008-06-12 | Nokia Corporation | Apparatus including antennas providing suppression of mutual coupling between current-carrying elements and methods for forming same |
| CN101281999A (en) * | 2007-04-03 | 2008-10-08 | 宏碁股份有限公司 | Antenna module as well as manufacturing method thereof, and radio communication device |
| CN101383449A (en) * | 2008-09-04 | 2009-03-11 | 北京航空航天大学 | Method for enhancing antenna separation degree |
| CN101645539A (en) * | 2009-08-28 | 2010-02-10 | 中国科学院光电技术研究所 | Low-mutual-coupling groove array antenna |
-
2013
- 2013-02-22 CN CN201310056637.8A patent/CN103151614B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301456A (en) * | 1979-06-27 | 1981-11-17 | Lockheed Corporation | Electromagnetic wave attenuating surface |
| US5923302A (en) * | 1995-06-12 | 1999-07-13 | Northrop Grumman Corporation | Full coverage antenna array including side looking and end-free antenna arrays having comparable gain |
| US20060238427A1 (en) * | 2005-04-22 | 2006-10-26 | Ferguson Stanley D | Phased array antenna choke plate method and apparatus |
| DE102006012452A1 (en) * | 2006-03-17 | 2007-10-04 | Imst Gmbh | Photonic band gap structure for e.g. high frequency circuit, has reference ground surface, and edge provided with respect to direction parallel to surface, where edge and/or filter structures present on edge are connected with surface |
| US20080136710A1 (en) * | 2006-12-07 | 2008-06-12 | Nokia Corporation | Apparatus including antennas providing suppression of mutual coupling between current-carrying elements and methods for forming same |
| CN101281999A (en) * | 2007-04-03 | 2008-10-08 | 宏碁股份有限公司 | Antenna module as well as manufacturing method thereof, and radio communication device |
| CN101383449A (en) * | 2008-09-04 | 2009-03-11 | 北京航空航天大学 | Method for enhancing antenna separation degree |
| CN101645539A (en) * | 2009-08-28 | 2010-02-10 | 中国科学院光电技术研究所 | Low-mutual-coupling groove array antenna |
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