Winding type storage antenna and storage method

Abstract

The invention relates to a winding type storage antenna and a storage method, and the antenna comprises a flexible substrate which is provided with a first surface and a second surface which are opposite to each other; and at least two rows of radiation unit arrays extending along the first direction. All the radiation unit arrays are sequentially arranged on the first face at intervals in the second direction, and the first direction is inclined relative to the second direction. When the flexible substrate is in the unfolded working state, a large area can be provided for tiling the radiation unit arrays, so that the antenna can maintain a large gain, and the gap between the adjacent radiation unit arrays can also improve the signal receiving and transmitting quality. The part, between the two adjacent radiation unit arrays, of the flexible substrate is not reinforced by the radiation unit arrays, and the good flexible deformation capacity is maintained. When the antenna needs to be stored and carried, the part, between the two adjacent radiation unit arrays, of the flexible substrate can be bent.

Description

Technical Field

[0001] The present invention relates to the field of antenna storage, and in particular to a winding storage antenna and a storage method. Background Art

[0002] Antenna aperture and transmit power are key factors in antenna power. Under the same transmit power, increasing the antenna aperture can improve antenna gain and signal strength. Under the same signal quality, increasing the antenna aperture can reduce transmit power, reduce system power consumption, save costs, and extend system service life.

[0003] However, the large diameter of the antenna will reduce the convenience of carrying and storing the antenna. Summary of the invention

[0004] Based on this, it is necessary to provide a winding storage antenna and a storage method to address the problem that large-diameter antennas are inconvenient to carry.

[0005] A rolled storage antenna, comprising:

[0006] A flexible substrate having a first surface and a second surface disposed opposite to each other; and

[0007] A radiation element array extending along a first direction and having at least two columns;

[0008] All the radiation unit arrays are sequentially arranged on the first surface at intervals along the second direction, and the first direction is inclined relative to the second direction.

[0009] The radiation unit array of the present invention comprises a plurality of radiation units and a baseband extending along a first direction, one side of the baseband is in contact with the first side, and the radiation units are arranged on the other side of the baseband.

[0010] The thickness of the radiation unit of the present invention is 20 μm-100 μm, the thickness of the baseband is 2 mm-20 mm, and the thickness of the flexible substrate is 20 μm-200 μm.

[0011] The baseband of the present invention is made of wave-transmitting material.

[0012] The flexible substrate of the present invention comprises a flexible organic inner plate and a metal film coated on the surface of the flexible organic inner plate.

[0013] The material of the flexible organic inner plate of the present invention is polyimide, and the material of the metal film is copper.

[0014] The present invention also includes a support rod having a first state, and the flexible substrate has an expanded working state. When the support rod is in the first state, the flexible substrate is in the expanded working state, the normal of the flexible substrate extends along a third direction, the support rod is attached to the second surface, and the projection of any radiation unit array in the third direction partially overlaps with the projection of the support rod in the third direction.

[0015] The support rod of the present invention also has a second state, and the support rod is rotatably arranged at the second surface to switch between the first state and the second state. The flexible substrate also has a retractable state. When the support rod is in the second state and the flexible substrate is in the retractable state, the projection of at least part of the radiation unit array in the third direction is separated from the projection of the support rod in the third direction.

[0016] The second state of the present invention includes a third state. When the support rod is in the third state, the support rod extends along the first direction.

[0017] The portion of the flexible substrate between two adjacent radiation unit arrays of the present invention is a bending portion, and when the support rod is in the third state, the projection of the support rod in the third direction is separated from the projection of the bending portion in the third direction.

[0018] The width of the bent portion in the second direction of the present invention is a constant value and is one fifth to one half of the working wavelength.

[0019] The second surface of the present invention is provided with a rotating shaft, the edge profile of the flexible substrate is a central symmetrical figure, the rotating shaft is located at the symmetry center of the flexible substrate, and the support rod is rotatably arranged on the second surface via the rotating shaft.

[0020] The edge profile of the flexible substrate of the present invention is circular.

[0021] Both ends of the radiation unit array of the present invention are located at the edges of the first surface.

[0022] The radiation unit array of the present invention includes at least two radiation units and a baseband extending along a first direction. The radiation units in the same radiation unit array are arranged on the baseband at intervals along the first direction. The spacing between two adjacent radiation units in the first direction is a constant and is one-fifth to one-half of the working wavelength.

[0023] In the present invention, when the support rod is in the first state, the support rod extends along the second direction.

[0024] A method for storing a rolled-up storage antenna, the method comprising:

[0025] Rotating the support rod from a first state to a second state so that the flexible substrate is converted from an unfolded working state to a retractable state;

[0026] The portion of the flexible substrate between two adjacent radiation unit arrays is a bent portion, and the flexible substrate also has a rolled state;

[0027] At least a portion of the bent portion is bent to convert the flexible substrate from a retractable state to a rolled state.

[0028] In the present invention, when the bending portion is bent, the radiation unit array rotates toward the second surface.

[0029] The beneficial effects of the present invention are:

[0030] When the flexible substrate is in the unfolded working state, it can provide a larger area to flatten the radiation unit array, so that the antenna maintains a larger gain. The gap between adjacent radiation unit arrays can also improve the signal reception and transmission quality.

[0031] The portion of the flexible substrate between two adjacent radiation unit arrays is not reinforced by the radiation unit arrays, and maintains good flexible deformation ability. When the antenna needs to be stored and carried, the portion of the flexible substrate between two adjacent radiation unit arrays can be bent to achieve the winding action of the flexible substrate, reduce the space occupied by the antenna, and then carry it in a more convenient way. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the three-dimensional structure of the rolled-up storage antenna in Embodiment 1 of the present invention (in the unfolded working state);

[0033] Figure 2 Schematic diagram of the upward structure of the rolled-up storage antenna in Embodiment 1 of the present invention (in the unfolded working state);

[0034] Figure 3 Schematic diagram of the three-dimensional structure of the rolled-up storage antenna in Embodiment 1 of the present invention (in rolled-up state);

[0035] Figure 4 is a graph of S11 of the rolled-up storage antenna in Example 1 of the present invention;

[0036] Figure 5 is a gain diagram of the radiation unit in embodiment 1 of the present invention;

[0037] Figure 6 is a gain diagram of the rolled-up storage antenna in Example 1 of the present invention;

[0038] Figure 7Schematic diagram of the three-dimensional structure of the rolled-up storage antenna in Example 2 of the present invention (in the unfolded working state).

[0039] Reference numerals:

[0040] 1. Flexible substrate; 11. First surface; 12. Second surface; 13. Bend portion; 2. Radiating unit array; 21. Radiating unit; 22. Baseband; 3. Support rod; 31. Rotating shaft. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0047] Embodiment 1:

[0048] This embodiment provides a roll-up storage antenna, including a flexible substrate 1 and at least two columns of radiation element arrays 2 .

[0049] The flexible substrate 1 has a first surface 11 and a second surface 12 arranged opposite to each other, wherein the first surface 11 is a radiation surface and the second surface 12 is a reflection surface. The flexible substrate 1 has an unfolded working state, a retractable state and a rolled state. Figure 1-Figure 2 When the flexible substrate 1 is in the unfolded working state or the retractable state, the flexible substrate 1 is in a flat state, and the first surface 11 and the second surface 12 are both flat, ensuring that the antenna pattern, gain and other performance do not fluctuate. When the flexible substrate 1 is in the unfolded working state, the deformation ability of the flexible substrate 1 is limited, and it cannot be directly rolled up and switched to the rolled up state. It needs to be switched to the retractable state first, at least partially removing the limitation on the deformation ability of the flexible substrate 1, such as Figure 3 As shown, only then can at least a portion of the flexible substrate 1 be rolled up, thereby switching to a rolled-up state. The space occupied by the flexible substrate 1 in the rolled-up state is reduced compared to when it is in an unfolded working state or a retractable state, thereby improving the portability of the rolled-up retractable antenna.

[0050] All radiation element arrays 2 extend along a first direction and are arranged on a first surface 11. All radiation element arrays 2 are arranged in sequence and spaced apart along a second direction. The first direction is inclined relative to the second direction. Usually, the first direction is perpendicular to the second direction. The portion of the flexible substrate 1 between two adjacent radiation element arrays 2 is a bent portion 13.

[0051] When the flexible substrate 1 is in the unfolded working state, it can provide a larger area to lay out the radiation unit array 2, and combined with the gaps between adjacent radiation unit arrays 2, the rolled-up storage antenna can maintain a larger signal gain and good signal reception and transmission quality.

[0052] Due to the reinforcement of the radiation element array 2, the portion of the flexible substrate 1 at the radiation element array 2 loses a large deformation capacity, and thus the portion of the flexible substrate 1 at the radiation element array 2 also loses the ability to be rolled in the first direction. Since the bending portion 13 is not reinforced by the radiation element array 2, it still retains its good deformation capacity, and thus the bending portion 13 can bend in the second direction, so that the adjacent radiation element arrays 2 rotate relatively and approach each other, so that the flexible substrate 1 switches from the retractable state to the rolled state.

[0053] In this embodiment, the flexible substrate 1 includes a flexible organic inner plate and a metal film coated on the surface of the flexible organic inner plate. The material of the flexible organic inner plate may be polyimide to provide the flexible substrate 1 with better deformation ability, thereby allowing the bending portion 13 to bend more violently, improving the winding degree of the flexible substrate 1, and thereby increasing the storage ratio of the winding storage antenna in the winding state. Both sides of the flexible organic inner plate are coated with a metal film, and the material of the metal film may be copper. Accordingly, in this embodiment, the first surface 11 and the second surface 12 are both copper films, and the thickness of the metal film is relatively small to reduce the influence on the deformation ability of the bending portion 13. At the same time, the metal film also ensures that the first surface 11 and the second surface 12 can be used normally as radiation surfaces and reflection surfaces.

[0054] The working wavelength of the winding storage antenna is λ. In this embodiment, the width of the bending portion 13 in the second direction is a constant value d2, λ / 2≥d2≥λ / 5, to ensure the quality of signal reception and transmission.

[0055] The radiation element array 2 includes a plurality of radiation elements 21 and a base band 22 extending along a first direction. The radiation elements 21 are attached to the front side of the base band 22 , and the back side of the base band 22 is attached to the first surface 11 .

[0056] If a part of the flexible substrate 1 is wound in the first direction and the second direction at the same time, it may be damaged due to excessive deformation. For this reason, both ends of the base tape 22 of this embodiment extend to the edge of the first surface 11. Under the reinforcement of the base tape 22, the flexible substrate 1 cannot be wound in the first direction at all, and can only be wound in the second direction, thereby limiting the winding direction of the flexible substrate 1.

[0057] In this embodiment, there are multiple radiation units 21 on the same baseband 22 and they are arranged in sequence along the first direction, and the spacing between two adjacent radiation units 21 is a constant value d1, and similarly, λ / 2≥d1≥λ / 5, to ensure the quality of signal reception and transmission. In addition, the baseband 22 increases the spacing between the radiation unit 21 and the first surface 11, thereby further improving the signal quality.

[0058] The radiation unit 21 is a metal patch, which can be made of copper, and the baseband 22 is made of a wave-transmitting material, which can be made of aramid paper honeycomb. In this embodiment, there are fifteen radiation unit arrays 2, each of which includes fifteen radiation units 21, thereby forming a 15*15 array on the flexible substrate 1, and the size of the radiation unit 21 is 4.3mm*4.3mm.

[0059] To ensure signal quality, the thickness of the radiation unit 21 is preferably 20 μm-100 μm, the thickness of the baseband 22 is preferably 2 mm-20 mm, and the thickness of the flexible substrate 1 is preferably 20 μm-200 μm.

[0060] The rolled-up storage antenna of this embodiment further includes a support rod 3, and the support rod 3 has at least a first state.

[0061] When the support rod 3 is in the first state, the flexible substrate 1 is simultaneously in the unfolded working state, at which time the normal of the flexible substrate 1 extends along the third direction, the support rod 3 is attached to the second surface 12, and the projection of any radiation unit array 2 in the third direction partially overlaps with the projection of the support rod 3 in the third direction. Accordingly, at this time, any radiation unit array 2 and the bending portion 13 obtain the support and reinforcement effect of the support rod 3, so that all parts of the bending portion 13 including its edges lose the ability to bend in the second direction, so that the flexible substrate 1 is stably maintained in the unfolded working state, and the stability of the winding storage antenna during operation is improved.

[0062] In order to reduce the required length of the support rod 3, when the support rod 3 is in the first state, it just extends along the second direction.

[0063] Preferably, the support rod 3 is mounted on the flexible substrate 1 so that the support rod 3 can be carried together with the flexible substrate 1. More specifically, a rotating shaft 31 is provided on the second surface 12, and the support rod 3 is rotatably arranged at the second surface 12 by the rotating shaft 31, thereby avoiding interference of the support rod 3 with the radiation unit 21. Therefore, the support rod 3 also has a second state on the flexible substrate 1, and the support rod 3 switches between the first state and the second state by rotating. When the support rod 3 is in the first state, the angle between the support rod 3 and the first direction is α1, and when the support rod 3 is in the second state, the angle between the support rod 3 and the first direction is α2, wherein α1>α2, that is, during the process of the support rod 3 being converted from the first state to the second state, the parallelism between the support rod 3 and the first direction is increased, thereby at least part of the projection of the radiation unit array 2 in the third direction is separated from the projection of the support rod 3 in the third direction, and accordingly, at least part of the edge of the curved portion 13 loses the constraint of the support rod 3, so that it can be rolled in the second direction, thereby although the flexible substrate 1 is still in a flat state, it has been switched from the unfolded working state to the retractable state.

[0064] Further preferably, the second state includes a third state and a fourth state. When the support rod 3 is in the third state, the support rod 3 extends along the first direction, that is, α2=0. When the support rod 3 is in the fourth state, α2>0. When the support rod 3 is in the fourth state, the projection of some of the bending portions 13 in the third direction will still overlap with the projection of the support rod 3 in the third direction, that is, at this time, the support rod 3 will still restrict the bending ability of some of the bending portions 13, thereby limiting the upper limit of the degree of winding that the flexible substrate 1 can perform. When the support rod 3 is in the third state, the projection of any bending portion 13 in the third direction will be separated from the projection of the support rod 3 in the third direction. At this time, the support rod 3 forms a avoidance for all the bending portions 13, thereby each bending portion 13 can be fully bent, thereby allowing the flexible substrate 1 to be wound with the maximum bending degree and switched to the winding state.

[0065] It is easy to understand that the support rod 3 needs to be switched from the first state to the fourth state first, and then from the fourth state to the third state. During this process, the partial bending portion 13 can be bent synchronously, so that the flexible substrate 1 is gradually switched to the winding state. The flexible substrate 1 can also be wound after the support rod 3 is switched to the third state.

[0066] The support rod 3 can be rotated clockwise or counterclockwise during the switching process between the first state, the third state and the fourth state. On this basis, the edge profile of the flexible substrate 1 of this embodiment is a central symmetrical figure, such as a positive direction, or a circle. Under this condition, the support rod 3 can be converted from the first state to the third state regardless of rotating 90° clockwise or 90° counterclockwise, thereby increasing the flexibility of the state switching of the support rod 3.

[0067] Further preferably, the rotating shaft 31 is located at the symmetric center of the flexible substrate 1. In this embodiment, the edge profile of the flexible substrate 1 is in the positive direction, and the length of the support rod 3 is equal to the side length of the flexible substrate 1. Therefore, whether the support rod 3 is switched to the third state by rotating clockwise or counterclockwise, it can ensure that it plays a supporting role for all radiation unit arrays 2. And whether the support rod 3 is in the first state or the second state, the projection of the support rod 3 in the third direction will never fall on the outside of the flexible substrate 1, and the length of the support rod 3 does not need to be further increased to cause waste.

[0068] Based on the structural features and principles of the above-mentioned winding type storage antenna, this embodiment further provides a storage method for the winding type storage antenna, and the method includes the following steps:

[0069] Step S1: rotating the support rod 3 from the first state to the fourth state or the third state, so that the flexible substrate 1 is converted from the unfolded working state to the retractable state, and the support rod 3 loses its supporting effect on at least part of the radiation element array 2, so that at least part of the bending portion 13 regains the ability to bend in the second direction;

[0070] Step S2: bend the bending portion 13 that regains the bending ability in the second direction, so as to partially or completely roll up the flexible substrate 1, and the corresponding flexible substrate 1 is converted from the retractable state to the rolled state, so as to facilitate the carrying and transport of the rolled-up storage antenna.

[0071] It is particularly noteworthy that, for the bending portion 13 in the bending process and the two radiation element arrays 2 adjacent to the bending portion 13, one of the radiation element arrays 2 can be rotated toward the radiation element 21 of the other radiation element array 2, or can be rotated toward the second surface 12. However, since the radiation element array 2 occupies part of the space above the first surface 11, and the second surface 12 is relatively empty, the bending portion 13 controls the radiation element array 2 to rotate toward the second surface 12 to obtain a larger rotation angle, thereby improving the winding degree of the flexible substrate 1, thereby obtaining a larger storage ratio. Under the parameter conditions of the winding storage antenna in this embodiment, its storage ratio is as high as 13:1.

[0072] In this embodiment, when the flexible substrate 1 is in the unfolded working state, see Figure 4 , with a center frequency of about 25.9 GHz and a bandwidth of up to 8% (24.92 GHz-27.02 GHz), which can be used in satellite communications. Figure 5 , the maximum gain of the radiation unit 21 is 8.2dB, see Figure 6 , the maximum gain of the winding storage antenna is 31.66dB.

[0073] Embodiment 2:

[0074] See also Figure 7 The present embodiment provides a roll-up storage antenna, comprising a flexible substrate 1, a support rod 3 and at least two columns of radiation element arrays 2.

[0075] The difference between this embodiment and embodiment 1 is that the edge profile of the flexible substrate 1 is circular. In this case, the length of the support rod 3 is the diameter of the flexible substrate 1, and the rotation axis is located at the center of the circle of the flexible substrate 1. Therefore, no matter what state the support rod 3 is rotated to, its two ends are always located at the edge of the flexible substrate 1, thereby improving its support strength and stability for the part of the flexible substrate 1 that does not need to be wound.

[0076] The flexible substrate 1 has a first surface and a second surface that are arranged opposite to each other, wherein the first surface is a radiation surface and the second surface is a reflection surface. The radiation unit array 2 also includes a plurality of radiation units and a baseband extending along a first direction, the back of the baseband is bonded to the first surface, and the radiation units are mounted on the front of the baseband. The radiation units on the front of the baseband are not only distributed along the first direction, but also distributed along the second direction, so that the radiation units on the same baseband are distributed in a rectangular array. The working wavelength of the winding storage antenna is λ. For the same radiation unit array 2, in the first direction, the spacing between two adjacent radiation units is a constant value d1, λ / 2≥d1≥λ / 5, and in the second direction, the spacing between two adjacent radiation units is a constant value d2, λ / 2≥d2≥λ / 5.

[0077] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A rolled-up storage antenna, characterized in that: include: A flexible substrate having a first surface and a second surface arranged opposite to each other; and A radiation element array extending along a first direction and having at least two columns; All the radiation unit arrays are sequentially arranged on the first surface at intervals along the second direction, and the first direction is inclined relative to the second direction.

2. The rolled storage antenna according to claim 1, characterized in that: The radiation unit array includes a plurality of radiation units and a baseband extending along a first direction, one side of the baseband is in contact with the first side, and the radiation units are arranged on the other side of the baseband.

3. The rolled-up storage antenna according to claim 2, characterized in that: The thickness of the radiation unit is 20 μm-100 μm, the thickness of the baseband is 2 mm-20 mm, and the thickness of the flexible substrate is 20 μm-200 μm.

4. The rolled-up storage antenna according to claim 1, characterized in that: It also includes a support rod having a first state, and the flexible substrate has an expanded working state. When the support rod is in the first state, the flexible substrate is in the expanded working state, the normal of the flexible substrate extends along a third direction, the support rod is attached to the second surface, and the projection of any radiation unit array in the third direction partially overlaps with the projection of the support rod in the third direction.

5. The rolled-up storage antenna according to claim 4, characterized in that: The support rod also has a second state, and the support rod is rotatably set at the second surface to switch between the first state and the second state. The flexible substrate also has a retractable state. When the support rod is in the second state and the flexible substrate is in the retractable state, the projection of at least part of the radiation unit array in the third direction is separated from the projection of the support rod in the third direction.

6. The rolled-up storage antenna according to claim 5, characterized in that: The second state includes a third state, and when the support rod is in the third state, the support rod extends along the first direction.

7. The rolled-up storage antenna according to claim 6, characterized in that: The portion of the flexible substrate between two adjacent radiation unit arrays is a bending portion. When the support rod is in the third state, the projection of the support rod in the third direction is separated from the projection of the bending portion in the third direction. The width of the bending portion in the second direction is a constant and is one-fifth to one-half of the working wavelength.

8. The rolled-up storage antenna according to claim 5, characterized in that: A rotating shaft is arranged on the second surface, the edge profile of the flexible substrate is a central symmetrical figure, the rotating shaft is located at the symmetry center of the flexible substrate, and the support rod is rotatably arranged on the second surface via the rotating shaft.

9. The rolled-up storage antenna according to claim 8, characterized in that: The edge profile of the flexible substrate is circular.

10. The rolled-up storage antenna according to claim 4, characterized in that: When the support rod is in the first state, the support rod extends along the second direction.

11. The rolled-up storage antenna according to claim 1, characterized in that: Both ends of the radiation element array are located at edges of the first surface.

12. The rolled-up storage antenna according to claim 1, characterized in that: The radiation unit array includes at least two radiation units and a baseband extending along a first direction. The radiation units in the same radiation unit array are arranged on the baseband at intervals along the first direction. The spacing between two adjacent radiation units in the first direction is a constant and is one-fifth to one-half of the working wavelength.

13. A method for storing a rolled-up storage antenna according to any one of claims 4 to 10, characterized in that: The method comprises: Rotating the support rod from a first state to a second state so that the flexible substrate is converted from an unfolded working state to a retractable state; The portion of the flexible substrate between two adjacent radiation unit arrays is a bent portion, and the flexible substrate also has a rolled state; At least a portion of the bent portion is bent to convert the flexible substrate from a retractable state to a rolled state.

14. The storage method of the rolled-up storage antenna according to claim 13, characterized in that: When the bending portion is bent, the radiation unit array rotates toward the second surface.

Images