Miniaturized conformal antenna
By designing the antenna base, radiation plate and bracket structure, the problem that existing antennas cannot be conformally miniaturized is solved, the antenna is made lighter and more stable, and it meets the needs of commercial aerospace.
Patent Information
- Application Number
- CN202422976156.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing low-frequency signal receiving antennas cannot simultaneously achieve conformal design with the aircraft surface and miniaturization, resulting in a complex antenna structure and reduced stability.
The structural design includes an antenna base, a radiating plate, a vibrator, a first bracket and a second bracket. The radiating plate is clamped and fixed by the bracket, and is connected to the radiating plate through an I-shaped, cross-shaped or "T"-shaped bracket contact surface, combined with screw fixation, to achieve miniaturization and lightweight of the antenna, and can be adjusted to adapt to different aircraft environments through the vibrator.
The antenna is miniaturized and lightweight, has a simple structure, is adaptable to various aircraft environments, reduces antenna costs and improves stability.
Smart Images
Figure CN223451177U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to signal receiving antenna technical field, concretely relates to a kind of miniaturization conformal antenna. BACKGROUND
[0002] With the development of commercial space technology, signal antenna has higher requirements on surface conformal, high-temperature ablation, low-frequency debugability, miniaturization and lightweight design, in the existing low-frequency signal receiving antenna, antenna and aircraft surface conformal and miniaturization design of antenna cannot be achieved simultaneously, and existing aircraft antenna structure is complex, so that the stability of antenna under high speed is reduced.
[0003] Therefore, in order to better adapt to the development of commercial space, a new conformal antenna is needed, which can realize miniaturization and lightweight design of antenna under conformal with aircraft surface. UTILITY MODEL CONTENT
[0004] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a kind of miniaturization conformal antenna, wherein first support and second support are used to fasten and clamp radiating plate and adjust the elongated portion of dipole relative to radiating plate, so as to realize miniaturization, lightweight design of conformal antenna, and be suitable for a variety of aircraft and body environment.
[0005] To achieve the above purpose, the utility model provides a kind of miniaturization conformal antenna, it includes antenna seat, antenna cover, the antenna seat is set with accommodating space, for installing signal receiving assembly, the signal receiving assembly includes radiating plate, dipole on the radiating plate,
[0006] The vertical two sides of the radiating plate are respectively provided with first support and second support, to fasten the radiating plate in the antenna seat;
[0007] The radiating plate is connected with the feed connector.
[0008] As a further improvement of the utility model, the first support includes at least one first unit and at least one second unit, the second support includes at least one third unit and at least one fourth unit, the first unit and the third unit are oppositely arranged, and the second unit and the fourth unit are oppositely arranged, to clamp and fix the radiating plate.
[0009] As a further improvement of the utility model, the projection of the surface of the first support and the second support respectively contacting the radiating plate on the radiating plate is one of I-shaped, cross-shaped or "T"-shaped.
[0010] As a further improvement of the utility model, the first bracket is provided with a first boss close to the surface of the radiation plate, and the radiation plate is provided with a through hole, so that the first boss is arranged in the through hole.
[0011] As a further improvement of the utility model, the third unit and the fourth unit of the second bracket are respectively provided with a through slot penetrating through the two side faces, for accommodating the radiation plate.
[0012] As a further improvement of the utility model, a gasket is arranged between the through slot bottom and the radiation plate.
[0013] As a further improvement of the utility model, a second boss is arranged on the radiation plate, the vibrator is provided with a waist-shaped hole, and the vibrator is sleeved on the second boss.
[0014] As a further improvement of the utility model, the second boss is provided with an internal thread, and a fastener is arranged correspondingly, the fastener is provided with an external thread matched with the internal thread, and the fastener is used for fastening the vibrator.
[0015] As a further improvement of the utility model, the vibrator is a plurality of, each of the vibrators is arranged on the same side of the radiation plate, and the feed connector is arranged on the side away from the vibrators.
[0016] As a further improvement of the utility model, the first bracket, the second bracket and the antenna seat are respectively provided with a threaded hole, so that the three can be connected through screws.
[0017] The above improvement technical features can be combined with each other as long as they do not conflict with each other.
[0018] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the following beneficial effects:
[0019] (1) The miniaturized conformal antenna comprises an antenna seat provided with a receiving cavity, a signal receiving assembly is arranged in the cavity, and a radome is arranged for covering the signal receiving assembly, the surface of the radome is conformal to the surface of the aircraft, and the radiation plate in the signal receiving assembly is fixedly connected through the first bracket and the second bracket arranged on the vertical two sides, so that the miniaturization and light weight of the antenna are realized, the structure is simple, the commercial aircraft and the flight condition requirements of the commercial aerospace body are suitable, and the antenna cost is reduced.
[0020] (2) The miniaturized conformal antenna, through the upper and lower supports, clamps and fixes the radiation plate, the contact surface of the upper and lower supports and the radiation plate is one of an I-shaped, a cross-shaped or a T-shaped, sufficient space is reserved for installing the oscillator and connecting with the feed connector under the premise of guaranteeing the fastening and clamping of the radiation plate, so that the miniaturized conformal antenna has high stability while the structure is simple;
[0021] (3) The miniaturized conformal antenna, through the first boss arranged on the surface of the first support and the through hole arranged on the radiation plate, the relative position between the radiation plate and the first support is fixed, so that the staff can be quickly positioned during the installation process;
[0022] (4) The miniaturized conformal antenna, through the through slot arranged on the second support and capable of accommodating the radiation plate, the relative position between the radiation plate and the second support is fixed, and the gasket is arranged between the through slot and the radiation plate, so that the interference fit between the radiation plate and the two supports is realized;
[0023] (5) The miniaturized conformal antenna, through the waist-shaped hole arranged on the oscillator and the second boss arranged on the radiation plate, the oscillator can reciprocate, so that the protruding part of the oscillator relative to the radiation plate is adjusted, and the miniaturized conformal antenna can be applied to different aircraft or projectile environments. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is the overall structure schematic diagram of the miniaturized conformal antenna in the embodiment of the utility model;
[0025] Figure 2 is the overall structure schematic diagram of another view of the miniaturized conformal antenna in the embodiment of the utility model;
[0026] Figure 3 is the installation state schematic diagram of the antenna seat and the signal receiving assembly in the embodiment of the utility model;
[0027] Figure 4 is the explosion view of the signal receiving assembly in the embodiment of the utility model;
[0028] In all the drawings, same reference signs represent same technical features, specifically: 1, antenna seat; 2, antenna cover; 3, radiation plate; 4, oscillator; 5, fastener; 6, first support; 7, second support; 8, gasket; 9, feed connector; 10, feed interface; 11, first screw; 12, second screw. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as there is no conflict.
[0030] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0031] In addition, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0032] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under" can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium. Moreover, first feature is on second feature "on", "above" and "upper surface" can be first feature is directly above or obliquely above second feature, or just indicate that the horizontal height of first feature is higher than second feature. First feature is on second feature "under", "below" and "under" can be first feature is directly below or obliquely below second feature, or just indicate that the horizontal height of first feature is less than second feature.
[0034] Embodiment:
[0035] The miniaturized conformal antenna in the preferred embodiment of the utility model is as shown in the figure. Figures 1-4 The utility model discloses a miniaturized conformal antenna, which comprises an antenna seat 1 and an antenna cover 2. The antenna seat 1 is provided with a receiving space, which can be used for installing a signal receiving assembly. The antenna cover 2 is installed on the antenna seat 1. The antenna seat 1 and the antenna cover 2 are connected through a first screw 11 to cover the receiving assembly inside the antenna seat 1. The outer surface of the antenna cover 2 is conformal to the outer surface of an aircraft.
[0036] Specifically, the receiving assembly comprises a radiation plate 3 and a vibrator 4 arranged on the radiation plate 3. The receiving space in the antenna seat 1 is a groove structure, which can make the radiation plate 3 horizontally placed in the receiving space. The vertical two sides of the radiation plate 3 are respectively provided with a first support 6 and a second support 7. The two supports are oppositely arranged to clamp the radiation plate 3. The two supports are also fixedly connected with the antenna seat 1, so as to fixedly connect the radiation plate 3 in the antenna seat 1. Further, the radiation plate 3 is connected with a feed connector 9. The feed connector 9 is connected with a feed interface 10 arranged at the bottom of the antenna seat 1 to realize the transmission of electric signals. Further, the upper surface of the radiation plate 3 is a plane, and the vertical direction of the plane is the vertical direction.
[0037] Further, the first support 6 and the second support 7 are frame structures. The first support 6 comprises at least one first unit and at least one second unit. The second support 7 comprises at least one third unit and at least one fourth unit. The first unit and the third unit are correspondingly arranged, and the second unit and the fourth unit are correspondingly arranged. The two supports are clamped and matched to fix the position of the radiation plate 3. Further preferably, the first unit, the second unit, the third unit and the fourth unit are straight line type bars. The material is preferably an organic material to realize insulation.
[0038] In one embodiment, the first support 6 comprises a first unit and a second unit, the two units are arranged in a cross shape to form a cross structure, and correspondingly, the third unit and the fourth unit in the second support 7 are also arranged in a cross structure, each unit is arranged to extend outwardly so that it forms a contact part in contact with the radiation plate 3 and an extension part not in contact with the radiation plate 3, and a threaded hole is formed at the end of the extension part, so that the first unit and the third unit, and the second unit and the fourth unit are fixedly connected in pairs, thereby clamping and fixing the radiation plate 3 between the first support 6 and the second support 7. Further preferably, threaded holes are also formed at the bottom of the antenna seat 1 accommodating space to achieve the overall fixation of the signal receiving assembly in the antenna seat 1 by fixedly connecting the first support 6, the second support 7 and the antenna seat 1 through the second screw 12.
[0039] Further, the radiation plate 3 is in a rectangular structure, the third unit and the fourth unit in the second support 7 are respectively parallel to the long side and the wide side of the radiation plate 3, so as to uniformly divide the upper surface of the radiation plate 3 into four areas, wherein two areas on the same side of the radiation plate 3 are respectively provided with two dipoles 4, and any one of the other two areas is connected with the feed.
[0040] Further, the feed connector 9 and the connection site on the radiation plate 3 are located on the center line of the radiation plate 3, the two dipoles 4 arranged on the radiation plate 3 are symmetrically arranged about the center line, and the feed connector 9 is arranged on the side away from the dipole 4 to obtain better signal receiving effect.
[0041] In a preferred embodiment, each unit in the first support 6 and the second support 7 forms a "T" shaped structure to divide the upper surface of the radiation plate 3 into three areas, the feed connector 9 is connected with the larger area of the radiation plate 3, and the dipoles 4 are arranged in the two smaller areas. Further, in order to ensure the stable connection between the signal receiving assembly and the antenna seat 1, a square frame is further arranged at the outer periphery of the "T" shaped structure, the "T" shaped support is fixedly connected with the square frame, and threaded holes are formed at the four corners of the square frame to be screw-connected with the antenna seat 1.
[0042] In another preferred embodiment, as shown in Figure 3 , 4 , the second support 7 comprises two third units and a fourth unit, each unit forms an H-shaped structure, and the first support 6 is also arranged in the same structure, wherein the two third units are arranged at the two side edges of the radiation plate 3 to clamp and fix the radiation plate 3 in cooperation with the first unit, and the fourth unit is connected between the two third units, and at the same time, the fourth unit also divides the upper surface of the radiation plate 3 into two parts for mounting the dipoles 4 and connecting with the feed connector 9. Further, each unit extends outwardly, and a corresponding threaded hole is formed on the extension part for fixation.
[0043] Further, a first boss is arranged on the surface of the contact surface between the first support 6 and the radiation plate 3, and a first through hole is arranged on the radiation plate 3, so that the first boss can be arranged in the first through hole, thereby achieving the positioning function and ensuring the relative position between the radiation plate 3 and the first support 6. Further preferably, a plurality of bosses are arranged along the length direction of each unit.
[0044] Further, a through slot is arranged in the third unit and the fourth unit of the second support 7, respectively, and the through slot penetrates the two side surfaces of the third unit and the fourth unit, thereby accommodating the radiation plate 3, so that the upper surface of the first support 6 can abut against the lower surface of the second support 7, thereby making the connection between the two more stable. Further preferably, the two side walls of the through slot also contact the surface of the radiation plate 3, thereby making the second support 7 also play a limiting role on the radiation plate 3.
[0045] Further, a gasket 8 is arranged between the second support 7 and the radiation plate 3, so that the second support 7 and the radiation plate 3 form an interference fit, thereby making the combination between the radiation plate 3 and each support more compact. Further preferably, the shape of the gasket 8 is the same as the projection shape of the second support 7 on the radiation plate 3, so as to cooperate with the second support 7, and the gasket 8 also has a second through hole corresponding to the first boss, which matches the first boss.
[0046] Further, the vibrator 4 is arranged on the radiation plate 3, and a plurality of vibrators 4 can be arranged, and the vibrators 4 are arranged to extend outwardly. Further preferably, the vibrator 4 is an adjustable vibrator, and the outwardly extending part of the vibrator 4 can be adjusted.
[0047] In one embodiment, a waist-shaped hole is arranged in one end of the vibrator 4 close to the radiation plate 3, and the length direction of the waist-shaped hole is the length direction of the vibrator 4, and a second boss is arranged on the radiation plate 3 corresponding to the waist-shaped hole, and the vibrator 4 is sleeved on the second boss, thereby achieving the limiting of the vibrator 4, so that the position of the vibrator 4 in the length direction can be adjusted, thereby adjusting the extending part of the vibrator 4 relative to the radiation plate 3. Further, a fastener 5 is arranged corresponding to the second boss, so as to fix the vibrator 4 on the radiation plate 3.
[0048] Further, the upper surface of the second boss is lower than the upper surface of the vibrator 4, and a blind hole is arranged on the surface of the second boss, and a threaded structure is arranged on the inner circumferential wall of the blind hole, that is, an internal thread is arranged on the second boss, and the fastener 5 is a screw, which includes a screw rod and a head, and the screw rod is arranged corresponding to an external thread structure matched with the internal thread, and the head fastens the vibrator 4, and a flat washer is arranged between the head of the fastener 5 and the vibrator 4, so as to protect the vibrator 4, and the flat washer is arranged to increase the pressing area of the screw head on the vibrator 4. Further preferably, the part of the second boss in contact with the vibrator 4 is square, so that the vibrator 4 can only be adjusted in a fixed direction, thereby facilitating the adjustment of the staff.
[0049] It is easy for those skilled in the art to understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A miniaturized conformal antenna comprising an antenna base and a radome, wherein the antenna base is provided with a receiving space for mounting a signal receiving component, characterized in that: The signal receiving component includes a radiation plate and a vibrator arranged on the radiation plate. A first bracket and a second bracket are respectively provided on two vertical sides of the radiation plate to fasten the radiation plate in the antenna base; The radiation board is connected to the feeding connector.
2. The miniaturized conformal antenna according to claim 1, wherein: The first bracket includes at least one first unit and at least one second unit, the second bracket includes at least one third unit and at least one fourth unit, the first unit and the third unit are arranged opposite to each other, and the second unit and the fourth unit are arranged opposite to each other to clamp and fix the radiation board.
3. The miniaturized conformal antenna according to claim 2, wherein: The projections of the surfaces of the first bracket and the second bracket respectively contacting the radiation plate on the radiation plate are one of an I-shape, a cross-shape or a T-shape.
4. The miniaturized conformal antenna according to any one of claims 1 to 3, wherein: The first bracket is provided with a first boss on a surface close to the radiation plate. The radiation plate is provided with a through hole so that the first boss passes through the through hole.
5. The miniaturized conformal antenna according to claim 2 or 3, wherein: The third unit and the fourth unit in the second bracket are respectively provided with through slots penetrating two side surfaces thereof for accommodating the radiation plate.
6. The miniaturized conformal antenna according to claim 5, wherein: A gasket is provided between the bottom of the through slot and the radiation plate.
7. The miniaturized conformal antenna according to any one of claims 1 to 3, wherein: The radiation plate is provided with a second boss, the vibrator is provided with a waist-shaped hole, and the vibrator is sleeved on the second boss.
8. The miniaturized conformal antenna according to claim 7, wherein: The second boss is provided with an internal thread, and a fastener is correspondingly provided therewith. The fastener is provided with an external thread matching therewith, and is used for fastening the vibrator.
9. The miniaturized conformal antenna according to any one of claims 1 to 3, wherein: There are multiple vibrators, each of which is arranged on the same side of the radiation plate, and the feeding connector is arranged on a side away from the vibrator.
10. The miniaturized conformal antenna according to any one of claims 1 to 3, wherein: The first bracket, the second bracket and the antenna base are respectively provided with threaded holes so that the three can be connected by screws.