Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AN OBJECT WITH REDUCED RADAR VISIBILITY
Document Type and Number:
WIPO Patent Application WO/2023/167648
Kind Code:
A1
Abstract:
The invention relates to an object (10) with reduced radar visibility due to its unique form.

Inventors:
TASDEMIR AHMET (TR)
OZDEMIR CANER (TR)
NOHUT SERKAN (TR)
Application Number:
PCT/TR2022/051539
Publication Date:
September 07, 2023
Filing Date:
December 20, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PIRI REIS UNIV (TR)
International Classes:
H01Q17/00
Domestic Patent References:
WO2013100807A12013-07-04
Foreign References:
US5043569A1991-08-27
RU2706760C12019-11-20
Other References:
CANBERK PAY: "DEVELOPMENT OF RADAR CROSS SECTION REDUCTION TECHNIQUES BASED ON THE CONCEPT OF TRANSFORMATION ELECTROMAGNETICS ", MASTER THESIS, 1 May 2018 (2018-05-01), pages 1 - 103, XP009548622
Attorney, Agent or Firm:
KAYA, Erdem (TR)
Download PDF:
Claims:
CLAIMS

1. The invention is an object (10) with reduced radar visibility, is characterized by compromising at least one fifth edge (15) extending in an X-axis (X) direction,

At least one fifth edge first end (151) and at least one fifth edge second end (152) are located on opposite edges of the said fifth edge (15),

At least one sixth edge (16) located at a distance between the fifth edge (15) and a Y-axis (Y) and extending in a Z-axis (Z),

At least one sixth edge first end (161 ) and at least one sixth edge second end (162) are located on opposite edges of the said sixth edge (16),

At least one first edge (11 ) extending between said fifth edge first end (151 ) and said sixth edge first end (161 ),

At least one second edge (12) extending between the fifth edge first end (151 ) and said sixth edge second end (162),

At least one third edge (13) extending between the fifth edge second end (152) and the sixth edge first end (161 ),

At least one fourth edge (14) extending between the said fifth edge second end (152) and sixth edge second end (162),

At least one first lateral surface (21) positioned between the said first edge (11) and said second edge (12),

At least one second lateral surface (22) positioned between the said fourth edge (14) and second edge (12),

At least one third lateral surface (23) positioned between the said third edge (13) and fourth edge (14),

At least one fourth lateral surface (24) positioned between the first edge (11 ) and the third edge (13),

2. An object (10) according to claim 1 , is characterized by compromising at least one first crest line (31) and is provided on the said first lateral surface (21 ).

3. An object (10) according to claim 1 , is characterized by compromising at least one second crest line (32) and is provided on the said second lateral surface (22).

4. An object (10) according to claim 1 , is characterized by compromising at least one third crest line (33) and is provided on the said third lateral surface (23). An object (10) according to claim 1 , is characterized by compromising at least one fourth crest line (34) and is provided on the said fourth lateral surface (24). An object (10) according to claim 1 , is characterized by compromising the fifth edge (15) and comprises at least one rounded form (40). An object (10) according to claim 1 , is characterized by compromising at least one of the first edge (11), the second edge (12), the third edge (13), the fourth edge

(14), the fifth edge (15) and the sixth edge (16) comprises an outward bulge (41). An object (10) according to claim 1 , is characterized by compromising the main form of the watercraft.

Description:
AN OBJECT WITH REDUCED RADAR VISIBILITY

TECHNICAL FIELD

The invention relates to an object with reduced radar visibility.

BACKGROUND

Radar systems are used in the defense industry, especially to detect watercraft and aircraft. The availability of these systems adds importance to designs in which radar visibility is reduced.

In the design stage for reducing the radar visibility of ships in the defense industry, the stability, resistance, and power determination calculations for the main engine are generally determined by using empirical formulas based on professional experience and experimental and/or numerical methods. Especially, due to the complexity of the physical formation of the ship's resistance, it is difficult to carry out the necessary optimization calculations or studies to increase the stability of a ship and to reduce the total resistance that occurs in the opposite direction of the movement during the movement itself. This leads to a prolongation of the design process and an increase in costs.

In current designs, although the ship may be invisible or less visible to radar from some angles, it cannot provide invisibility for incoming signals at certain angles. As a result, the desired level of invisibility cannot be achieved.

As a result, all the above-mentioned problems have made it necessary to make an innovation in the relevant technical field.

BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to an object for eliminating the above-mentioned disadvantages and bringing new advantages to the related technical field and for a better understanding of the reasons for the physical formation of the resistance.

One objective of the invention is to provide an object with reduced radar visibility. In order to achieve all the above mentioned objectives which will be clarified by the detailed description below, the present invention is an object with reduced radar visibility. Accordingly, its novelty is that it comprises at least one fifth edge extending in an X-axis direction, at least one fifth edge first end and at least one fifth edge second end located on opposite edges of said fifth edge, at least one sixth edge located at a distance between the fifth edge and a Y-axis and extending in a Z-axis, at least one sixth edge first end and at least one sixth edge second end located on opposite edges of said sixth edge, at least one first edge extending between said fifth edge first end and said sixth edge first end, at least one second edge extending between said fifth edge first end and said sixth edge second end, at least one third edge extending between said fifth edge second end and sixth edge first end, at least one fourth edge extending between said fifth edge second end and sixth edge second end, at least one first lateral surface positioned between said first edge and said second edge, at least one second lateral surface positioned between said fourth edge and said second edge, at least one third lateral surface located between said third edge and fourth edge, at least one fourth lateral surface located between said first edge and third edge. Thus, it is ensured that the radar visibility of the object has a reduced form.

A possible embodiment of the invention is characterized by compromising at least one first crest line provided on the said first lateral surface. Thus, the diffraction direction for the first lateral surface is obtained. Thus, a twisted surface form is obtained by bending the first lateral surface along the diffraction direction.

Another possible embodiment of the invention is characterized by compromising at least a one-second crest line provided on the said second lateral surface. Thus, the diffraction direction for the second lateral surface is obtained. Thus, a twisted surface form is obtained by bending the second lateral surface along the diffraction direction.

Another possible embodiment of the invention is characterized by compromising at least one third crest line provided on the said third lateral surface. Thus, the diffraction direction for the third lateral surface is obtained. Thus, a twisted surface form is obtained by bending the third lateral surface along the diffraction direction.

Another possible embodiment of the invention is characterized by compromising at least one fourth crest line provided on the said fourth lateral surface. Thus, the diffraction direction for the fourth lateral surface is obtained. Thus, a twisted surface form is obtained by bending the fourth lateral surface along the diffraction direction. Another possible embodiment of the invention is characterized in that the fifth edge includes at least one rounded form. Thus, the friction force that the object will be exposed to in the environment in which it moves is reduced.

Another possible embodiment of the invention is characterized in that at least one of the first edge, the second edge, the third edge, the fourth edge, the fifth edge, and the sixth edge has an outward bulge. Thus, an object form is obtained in which the radar visibility is reduced. However, an aerodynamic form is provided for the object.

Another possible embodiment of the invention is characterized in that it is the main form of the watercraft. Thus, a ship form is provided in which the radar visibility is reduced, especially in the defense industry.

BRIEF DESCRIPTION OF THE FIGURES

Figure 1 shows a representative perspective view of the first version of the object of the invention.

Figure 2 shows a representative perspective view of the second version of the object of the invention.

Figure 3 shows a representative perspective view of the third version of the object of the invention.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter of the invention is explained only by means of examples that will not have any limiting effect for a better understanding of the subject matter.

Figure 1 shows a representative perspective view of the first version (V1 ) of the object (10) of the invention. Accordingly, the said object (10) is at least partially invisible to the radar. In a possible embodiment of the invention, the object (10) may be a floating vehicle. In another possible embodiment of the invention, the object (10) can be a part of a floating vehicle. In another possible embodiment of the invention, the object (10) can be an aircraft. In another possible embodiment of the invention, the object (10) can be a part of an aircraft. In a possible embodiment of the invention, the object (10) may be a land vehicle. In another possible embodiment of the invention, the object (10) can be a part of a land vehicle. Object (10) is preferably the main body form of a watercraft. In a possible embodiment of the invention, the object (10) is a ship. In another possible embodiment of the invention, the object (10) is a submarine. In another possible embodiment of the invention, the object (10) is an airplane.

The object (10) may be in the said first version (V1). The first version (V1 ) is a possible embodiment of the form of the object (10). The object (10) has at least one fifth edge (15). The said fifth edge (15) in the first version (V1 ) can be in different forms. The fifth edge (15) extends in an X-axis (X). The said fifth edge (15) extends between at least one fifth of edge first end (151) and at least one fifth edge second end (152) which are substantially opposite each other. The said fifth edge first end (151) is one end of the fifth edge (15). The said fifth edge second end (152) is another end of the fifth edge (15).

The object (10) has at least one sixth edge (16). The said sixth edge (16) is positioned at a distance between the fifth edge (15) and a Y-axis (Y). The said sixth edge (16) in the first version (V1) can be in different forms. The sixth edge (16) extends in a Z-axis (Z). The sixth edge (16) extends between at least one sixth edge first end (161) and a sixth edge second end (162) which are substantially opposite each other. The said sixth edge first end (161 ) is one end of the sixth edge (16). The said sixth edge second end (162) is another end of the sixth edge (16).

The object (10) has at least one first edge (11). The said first edge (11 ) in the first version (V1 ) is in the form of a line segment. The first edge (11) extends substantially between the fifth edge first end (151 ) and the sixth edge first end (161). The object (10) has at least one second edge (12). The said second edge (12) in the first version (V1) is in the form of a line segment. The second edge (12) extends substantially between the fifth edge first end (151) and the sixth edge second end (162).

The object (10) has at least one third edge (13). The said third edge (13) in the first version (V1 ) is in the form of a line segment. The third edge (13) extends substantially between the fifth edge second end (152) and the sixth edge first end (161 ). The object (10) has at least one fourth edge (14). The said fourth edge (14) in the first version (V1) is in the form of a line segment. The fourth edge (14) extends substantially between the fifth edge second end (152) and the sixth edge second end (162). The object (10) has at least one first lateral surface (21). The said first lateral surface (21) is positioned between the first edge (11) and the second edge (12). In a possible embodiment of the invention, the first lateral surface (21) is positioned between the first edge (11 ), the second edge (12), and the sixth edge (16). In the first version (V1), the first lateral surface (21) is positioned planarly.

The object (10) has at least one second lateral surface (22). The said second lateral surface (22) is positioned between the second edge (12) and the fourth edge (14). In a possible embodiment of the invention, the second lateral surface (22) is positioned between the second edge (12), the fourth edge (14), and the fifth edge (15). In the first version (V1), the second lateral surface (22) is positioned planarly.

The object (10) has at least one third lateral surface (23). The said third lateral surface (23) is positioned between the third edge (13) and the fourth edge (14). In a possible embodiment of the invention, the third lateral surface (23) is positioned between the third edge (13), the fourth edge (14), and the sixth edge (16). In the first version (V1 ), the third lateral surface (23) is positioned planarly.

The object (10) has at least one fourth lateral surface (24). The said fourth lateral surface (24) is positioned between the first edge (11 ) and the third edge (13). In a possible embodiment of the invention, the fourth lateral surface (24) is positioned between the first edge (11 ), the third edge (13), and the fifth edge (15). In the first version (V1), the fourth lateral surface (24) is positioned planarly.

In the first version (V1), object (10) has planar surfaces that reflect signals from a fixed radar at right angles to any surface of the object (10) back to the radar along the surface that the signal reaches. However, when no signal from the radar arrives at right angles to any surface of the object (10), the object (10) does not reflect at least most of the signals to the radar. Thus, object (10) is at least partially radar invisible in the first version (V1).

Figure 2 shows a representative perspective view of a second version (V2) of the object (10) of the invention. The said second version (V2) is essentially an embodiment of the object (10). The object (10) has at least one first crest line (31 ). The said first crest line (31 ) is located on the first lateral surface (21). In a possible embodiment of the invention, the first crest line (31 ) extends between the fifth edge, the first end (151), and the sixth edge (16). In a possible embodiment of the invention, the first crest line (31 ) extends between the fifth edge first end (151 ) and the midpoint of the sixth edge (16). The object (10) has at least one second crest line (32). The said second crest line (32) is located on the second lateral surface (22). In a possible embodiment of the invention, the second crest line (32) extends between the sixth edge, the second end (162), and the fifth edge (15). In a possible embodiment of the invention, the second crest line (32) extends between the sixth edge second end (162) and the midpoint of the fifth edge (15).

The object (10) has at least one third crest line (33). The said third crest line (33) is located on the third lateral surface (23). In a possible embodiment of the invention, the third crest line (33) extends between the fifth edge, the second end (152), and the sixth edge (16). In a possible embodiment of the invention, the third crest line (33) extends between the fifth edge second end (152) and the midpoint of the sixth edge (16).

The object (10) has at least one fourth crest line (34). The said fourth crest line (34) is located on the fourth lateral surface (24). In a possible embodiment of the invention, the fourth crest line (34) extends between the sixth edge, the first end (161), and the fifth edge (15). In a possible embodiment of the invention, the fourth crest line (34) extends between the sixth edge, the second end (161 ), and the midpoint of the fifth edge (15).

The crest lines on the object (10) are the diffraction directions for the surfaces of the object (10). In the second version (V2) of the object (10), the first lateral surface (21) of the object (10) is in a bent form around the first crest line (31). The second lateral surface (22) of the object (10) is in a bent form around the second crest line (32). The third lateral surface (23) of the object (10) is in a bent form around the third crest line (33). The fourth lateral surface (24) of the object (10) is in a bent form around the fourth crest line (34).

Object (10) has its lateral surfaces in a twisted form with respect to the first version (V1), with its surfaces bent around the crest lines in the second version (V1 ). Thus, in the second version (V2), the object (10) reflects the signals coming from a fixed radar back to the radar from a smaller area than in the first version (V1). Thus, object (10) has at least partial radar invisibility in the second version (V2).

Figure 3 shows a representative perspective view of a third version (V3) of the object (10) of the invention. The said third version (V3) is essentially another embodiment of the object (10). Accordingly, in the third version (V3), the object (10) includes at least one bulge (41 ). The said bulge (41 ) essentially defines at least one edge of the object (10) being in curved form. In a possible embodiment of the invention, the bulge (41) bends outward from the object (10). However, the bulge (41) provides an aerodynamic form for the object (10).

In the third version (V3), the object (10) has at least one routing end (50). In a possible embodiment of the invention, the said routing end (50) is around the fifth edge (15). The routing end (50) has a rounded form (40). The said rounded form (40) essentially defines the radius of the fifth edge (15). In a possible embodiment of the invention, the routing end (50) is positioned in the direction of motion of the object (10). The rounded form (40) serves to reduce the friction force that the routing end (50) is exposed to in the environment in which it moves.

The bulge (41 ) reflects the signals from the radar back in different directions along the surface by ensuring that the surfaces are curved. Thus, in the third version (V3), the object (10) reflects the signals coming from a fixed radar back to the radar from a smaller area than in the first version (V1 ).

According to all these explanations, the object (10) can have an aerodynamic form. However, object (10) may have a form with reduced radar visibility. In this way, object (10) defines the form of a military vehicle, especially in the defense industry, as a possible embodiment of the invention. The object (10) can float in the liquid medium according to the density value it has. However, the object (10) can at least partially sink in the liquid, depending on its density value. However, the object (10) can remain suspended in the liquid according to its density value. The said density value can be adjusted at the production stage of the object (10) with the material properties and volume of the object (10). In this way, the object (10) can be the body form of a ship. Thus, a ship form with reduced radar visibility can be provided. However, the object (10) may be the body form of a submarine. Thus, a submarine form with reduced radar visibility can be provided. However, the object (10) may be the body form of an aircraft. Thus, an aircraft form with reduced radar visibility can be provided. However, the object (10) may be the body form of a land vehicle. Thus, a land vehicle with reduced radar visibility can be provided.

In a possible embodiment of the invention, the object (10) can be the form of any part of a vehicle. In this way, the radar visibility of the relevant part of the vehicle can be reduced.

The protection scope of the invention is specified in the appended claims and cannot be limited to what is described in this detailed description for illustrative purposes. It is clear that those skilled in the art can present similar embodiments in the light of what is described above without departing from the main theme of the invention.

REFERENCE NUMBERS GIVEN IN THE FIGURES

10 Object

11 First Edge

12 Second Edge

13 Third Edge

14 Fourth Edge

15 Fifth Edge

151 Fifth Edge First End

152 Fifth Edge Second End

16 Sixth Edge

161 Sixth Edge First End

162 Sixth Edge Second End

21 First Lateral Surface

22 Second Lateral Surface

23 Third Lateral Surface

24 Fourth Lateral Surface

31 First Crest Line

32 Second Crest Line

33 Third Crest Line

34 Fourth Crest Line

40 Rounded Form

41 Bulge

50 Routing End

V1 First Version

V2 Second Version

V3 Third Version

(X) X-Axis

(Y) Y-Axis

(Z) Z-Axis