Electric field antenna device based on measuring tape structure and dipole antenna system

Abstract

The invention relates to the technical field of microsatellites, in particular to an electric field antenna device and dipole antenna system based on a measuring tape structure, which comprises a shell, a reel and a measuring tape antenna, the housing is provided with an antenna outlet. The reel is rotationally connected in the shell, and one end of the measuring tape antenna is fixed on the reel; the measuring tape antenna can be wound on the reel under an external force so as to be switched to a storage state; the flexible rule antenna can also extend outwards from the antenna outlet under the elastic force of the flexible rule antenna so as to be switched to a use state; the measuring tape antenna comprises two memory type measuring tapes, the shape of the cross section along the width direction of the two memory type measuring tapes is memorized to be arc-shaped, and the inner concave surfaces of the arc-shaped cross sections of the two memory type measuring tapes are opposite to each other, and the measuring tape antenna has the beneficial effects that the kinetic energy of outward extension of the measuring tape antenna is provided by the measuring tape antenna, no other power component is needed, and the measuring tape antenna is convenient to use. Therefore, the structure compactness of the electric field antenna device is greatly improved, and the curb mass of the electric field antenna device is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of micro-satellites, and in particular to an electric field antenna device and a dipole antenna system based on a tape measure structure. Background Art

[0002] In recent years, the electric field measurement antennas carried by microsatellites are made of tape measures, and their overall storage method is similar to that of tape measures, that is, the end of the antenna is fixed to a reel, and the reel is rotated to wrap the antenna around its side. The antenna will be restrained after being stored, making it impossible for the antenna and reel to rotate and unfold.

[0003] Microsatellites in the prior art include Mayak microsatellite and Kosen-1 microsatellite. Mayak is a three-directional monopole antenna, and Kosen-1 is a unidirectional dipole antenna.

[0004] As for the electric field antenna carried by Mayak, it relies on an electric motor to unfold, and has many parts, resulting in a relatively high curb weight and overall cost.

[0005] As for the electric field antenna carried by Kosen-1, it abandons the use of motors. The deployment of the antenna relies entirely on the restoring force of the tape measure itself, but it cannot obtain all the local electric field information in space, and the space it occupies on the satellite is too large.

[0006] Therefore, how to develop an electric field measurement antenna for microsatellites that has a compact structure, low cost, and small curb mass is an urgent problem to be solved for microsatellites. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an electric field antenna device and a dipole antenna system based on a tape measure structure, which solves the technical problem of the difficulty in balancing the structural compactness, cost and curb weight of the electric field antenna in the prior art.

[0009] (II) Technical solution

[0010] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0011] In the first aspect, the present invention provides an electric field antenna device and a dipole antenna system based on a tape measure structure, comprising a shell, a reel and a tape measure antenna; an antenna outlet is opened on the shell, the reel is rotatably connected in the shell, and one end of the tape measure antenna is fixed on the reel; the tape measure antenna comprises two memory tape measures and a connector connecting the two memory tape measures together, the cross-sectional shape of the memory tape measure is an arc shape, and the arc-shaped inner concave surfaces of the two memory tape measures are relatively formed into the tape measure antenna; under the action of external force, the tape measure antenna remains in a storage state wound on the reel and located in the shell, at which time the two memory tape measures overcome their memory shapes and fit together, and accumulate elastic potential energy; when the external force is released, the tape measure antenna extends outward from the antenna outlet to a use state driven by its restoring force, at which time the two memory tape measures are deformed to a memory shape.

[0012] In a second aspect, the present invention provides a dipole antenna system, characterized in that it includes two electric field antenna devices arranged in mirror symmetry so that the two tape antennas form dipole antennas with extension directions on a straight line; the outer shells both include a base and a shell, and the base is provided with a first mounting hole, a second mounting hole, a third mounting hole and a fourth mounting hole, and the structures of the two outer shells are consistent; the projections of the axes of the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole corresponding to one outer shell along the front-to-back direction are marked as points A, B, C, and D; AC and BD intersect at point O, and point O is the projection of the rotation axis of the scroll along the front-to-back direction, and AB is parallel to CD; the antenna outlet is opened on the shell, and when the tape antenna is switched to the use state, the extension direction of the tape antenna is parallel to the extension direction of the angular bisector of ∠AOD; the projections of the axes of the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole corresponding to the other outer shell along the front-to-back direction are marked as points A', B', C', and D', and when the two electric field antenna devices form a dipole antenna, ABB'A' is parallel to the straight line DCC'D'.

[0013] (III) Beneficial effects

[0014] The beneficial effects of the present invention are as follows: the electric field antenna device and dipole antenna system based on the tape measure structure of the present invention, the tape measure antenna includes two memory tape measures with concave surfaces facing each other, so that when the tape measure is wound on the reel under the action of external force, the tape measure antenna will have a tendency to extend straightly from the antenna outlet to the outside of the shell, thereby enabling the tape measure to maintain a state of extending out of the shell under normal conditions, that is, when the tape measure antenna switches from the storage state to the use state, the kinetic energy of the outward extension is provided by the tape measure antenna itself, without any other power components, thereby greatly improving the structural compactness of the electric field antenna device and reducing the curb weight of the electric field antenna device. The two memory tape measures have concave surfaces facing each other, so that the tape measure antenna needs a large external force to bend in the unfolded state, ensuring its strength in the use state, and can also rely on its own restoring force to restore to a straight state when bending, ensuring the reliability of the use of the tape measure antenna. By setting tape measure antennas of different lengths, electric field antenna devices with different antenna lengths can be obtained, so that the flexibility of use of the electric field antenna device is also guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the axial structure of the electric field antenna device based on the tape measure structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the exploded structure of the electric field antenna device based on the tape measure structure of the present invention;

[0017] Figure 3 This is one of the structural schematic diagrams of the tape measure antenna of the present invention;

[0018] Figure 4 This is the second structural schematic diagram of the tape measure antenna of the present invention;

[0019] Figure 5 This is one of the structural schematic diagrams of the disconnection module of the present invention;

[0020] Figure 6 This is the second structural schematic diagram of the disconnect module of the present invention;

[0021] Figure 7 It is a schematic diagram of the top view of the electric field antenna device based on the tape measure structure of the present invention;

[0022] Figure 8 It is a schematic diagram of the main structure of the electric field antenna device based on the tape measure structure of the present invention;

[0023] Fig. 9 It is a structural schematic diagram of the rotating component of the present invention;

[0024] Fig.10 It is a schematic diagram of the outer shell layout of the electric field antenna under the dipole antenna working condition of the present invention.

[0025] [Description of Reference Numerals]

[0026] 1. Shell; 11. Base; 12. Shell; 100. Antenna outlet; 110. First through hole; 120. First mounting hole; 130. Second mounting hole; 140. Third mounting hole; 150. Fourth mounting hole;

[0027] 2. reel; 200. second through hole;

[0028] 3. tape measure antenna; 31. memory tape measure; 32. connector; 321. ring tape; 322. gasket;

[0029] 5. Limiting parts;

[0030] 6. Disconnect module; 61. Thermal resistor;

[0031] 7. Rotating parts. DETAILED DESCRIPTION

[0032] In order to better explain the present invention, so as to facilitate understanding, the following Figure 1-Figure 10 , the present invention is described in detail through specific implementation methods. Figure 1 The orientation is used as a reference.

[0033] Embodiment 1:

[0034] Reference Figure 1-Figure 10 The embodiment of the present invention provides an electric field antenna device based on a tape measure structure, comprising a housing 1, a reel 2 and a tape measure antenna 3; an antenna outlet 100 is provided on the housing 1, the reel 2 is rotatably connected in the housing 1, and one end of the tape measure antenna 3 is fixed on the reel 2; the tape measure antenna 3 comprises two memory tape measures 31 and a connector 32 connecting the two memory tape measures 31 together, the cross-sectional shape of the memory tape measures 31 is a circular arc shape, and the cross-sectional shape is the width direction cross-sectional shape of the memory tape measures 31; the circular arc-shaped inner concave surfaces of the two memory tape measures 31 are opposite to each other to form the tape measure antenna 3, and under the action of external force, the tape measure antenna 3 remains wound around the reel 2 and in the storage state in the housing 1, at which time the two memory tape measures 31 overcome their memory shapes and fit together, and accumulate elastic potential energy; when the external force is released, the tape measure antenna 3 extends outward from the antenna outlet 100 to the use state driven by its restoring force, and at this time the two memory tape measures 31 are deformed to the memory shape.

[0035] In this embodiment, a receiving cavity is designed inside the housing 1 for installing and fixing other components. The housing 1 is also provided with an antenna outlet 100 for extending and retracting the tape antenna 3. The reel 2 is rotatably connected inside the housing 1 to support and reel the tape antenna 3.

[0036] The tape measure antenna 3 includes two memory tape measures 31. By placing the concave surfaces of the two memory tape measures 31 opposite to each other, the tape measure antenna 3 can maintain the force to restore to the use state. In this way, when the tape measure is wound on the reel 2 under the action of external force, the tape measure antenna 3 will have a tendency to extend straight from the antenna outlet 100 to the outside of the housing 1, thereby allowing the tape measure to maintain a state of extending out of the housing 1 under normal conditions, that is, the kinetic energy of the tape measure antenna 3 extending outward is provided by the tape measure antenna 3 itself, without the need for any other power components, thereby greatly improving the structural compactness of the electric field antenna device and reducing the curb weight of the electric field antenna device. By setting tape measure antennas 3 of different lengths, electric field antenna devices with different antenna lengths can be obtained, so that the flexibility of use of the electric field antenna device is also guaranteed.

[0037] The two concave surfaces of the memory tape 31 face each other, so that the tape antenna 3 requires a large external force to bend when in the unfolded state, thereby ensuring its strength in the use state. At the same time, even if the tape antenna 3 is bent, it can be restored to a straight state by its own restoring force, thereby ensuring the reliability of the tape antenna 3.

[0038] Specifically, in the structure of the tape antenna 3 in the present embodiment, when it is in the storage state, the arc-shaped memory tape 31 will extend to a certain extent along its own width direction, for example, extend to a state where the two memory tapes 31 are completely in contact with each other, and the memory tape 31 with an arc-shaped cross-section is deformed into a memory tape 31 with a straight cross-section. At this time, the electric field antenna device is in the storage state; when the external force that restricts the resetting of the tape antenna 3 disappears, under the action of the elastic force, the two memory tapes 31 will return to the arc shape, and at the same time, the tape antenna 3 extends out of the housing 1 from the antenna outlet 100. At this time, the electric field antenna device is in the use state.

[0039] More specifically, the memory tape measure 31 can be set as a SK85 steel tape measure. SK85 is a carbon-doped steel produced in Japan. The introduction of carbon element gives it better bending resistance.

[0040] The electric field antenna also includes a rotating component 7, which is detachably connected to the reel 2, so as to selectively rotate the reel 2 to switch the tape antenna 3 to the storage state; the rotating component 7 is configured as a handle detachably connected to the reel 2. The operation of rotating the reel 2 by the rotating component 7 is performed on the ground. A triangular hole is provided on the reel 2, and after the handle is inserted into the hole, the reel 2 can be manually rotated. When the electric field antenna device is in use, the handle will be removed, so that the compactness of the structure of the electric field antenna device can be effectively ensured, and it is also conducive to reducing the curb weight of the electric field antenna device.

[0041] Embodiment 2:

[0042] Reference Figure 3 and Figure 4 In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0043] The connecting piece 32 is annular, and the circumference of the connecting piece 32 is greater than or equal to the circumference of the two memory tape measures 31 after being buckled together; wherein, the inner wall of the connecting piece 32 forms an adhesive section and a non-adhesive section that are connected to each other, the adhesive section corresponds to the outer convex surface of one memory tape measure 31 and is bonded to each other, and the non-adhesive section corresponds to the outer convex surface of the other memory tape measure 31 and is in contact with each other.

[0044] Through the above design, the adhesive section can ensure that the connecting piece 32 is connected to one memory tape 31 without falling off, thereby ensuring that the annular connecting piece 32 always remains on the outside of the two memory tapes 31, thereby limiting the basic shape of the two memory tapes 31; the non-adhesive section corresponds to another memory tape 31. After the memory tape 31 is deformed, relative displacement can occur between the non-adhesive section and the corresponding convex surface of the memory tape 31, thereby ensuring that the annular tape 321 will not hinder the state switching process of the tape antenna 3, and at the same time can tightly restrict the two memory tapes 31 together.

[0045] The circumference of the connecting member 32 should be greater than or equal to the circumference of the two memory measuring tapes 31 after being buckled together, preferably equal to the circumference of the two memory measuring tapes 31 after being buckled together, to ensure the connection stability of the two memory measuring tapes 31.

[0046] Specifically, when the tape antenna 3 is in the storage state, the two memory tapes 31 are tightly attached together, and the adhesive section of the connecting member 32 is bonded to the outer convex surface of one of the memory tapes 31, ensuring a stable connection between the two memory tapes 31. The non-adhesive section is kept separated from the outer convex surface of the other memory tape 31.

[0047] When the tape antenna 3 needs to be unfolded, the two memory tapes 31 are gradually separated. Due to the bonding effect between the adhesive section and one of the memory tapes 31, the annular tape 321 can still maintain sufficient stability and connectivity, thereby preventing the tape antenna 3 from disintegrating. At the same time, there is a relative displacement between the non-adhesive section and the other memory tape 31, thereby realizing the unfolding of the tape antenna 3.

[0048] More specifically, when the tape measure antenna 3 is switched to the storage state, there will be a certain length difference between the inner and outer memory tape measures 31. Generally, when the tape measure antenna 3 is 2m, 4m and 6m, the corresponding length difference is about 2.5cm, 4cm and 4.5cm respectively. This difference does not affect the use of the tape measure antenna 3, and the structure of the connector 32 allows the two tape measure antennas 3 to slide along their own length direction. The end of the memory tape measure 31 antenna 3 retains the hook of the tape measure itself to prevent the external force from completely retracting the antenna into the shell, resulting in a failure to deploy.

[0049] Embodiment 3:

[0050] Reference Figure 3 and Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0051] The connecting member 32 includes an annular tape 321 and a gasket 322 . The gasket 322 is bonded to the inner wall of the annular tape 321 to form a non-bonded section, and the area of ​​the annular tape 321 other than the gasket 322 forms a bonded section.

[0052] In this embodiment, the connector 32 can be made by the annular tape 321 and the gasket. The connector 32 can be made entirely by the tape, which can ensure the integrity of the connector 32, reduce its production cost and improve its production convenience, that is, the annular tape 321 and the gasket 322 are both configured as tapes, and the gasket 322 is a tape with the adhesive surface facing the adhesive surface of the annular tape 321, so there is no need to specifically produce a special annular tape 321, and there is no need to remove the glue from the annular tape 321.

[0053] Specifically, the tape can be a polyimide high temperature resistant tape, which has a maximum temperature resistance of 250-300°C, which is sufficient to cope with the large temperature change range of the space environment. The length of each tape section on the tape antenna 3 is 2.5 cm, and one section is glued every 30 cm. This is a length that can prevent the two memory tapes 31 from loosening, and will not be wrapped too densely to affect conductivity.

[0054] Embodiment 4:

[0055] Reference Figure 5-Figure 8 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0056] The electric field antenna also includes a limiter 5, which is suitable for selectively connecting the reel 2 and the housing 1 to limit the rotation angle of the reel 2 relative to the housing 1, thereby limiting the length of the tape measure antenna 3 extending away from the housing 1. The housing 1 is provided with a first through hole 110, and the reel 2 is provided with a second through hole 200. The limiter 5 can pass through the first through hole 110 and the second through hole 200 to limit the rotation angle of the reel 2 relative to the housing 1, thereby limiting the length of the tape measure antenna 3 extending away from the housing 1.

[0057] In this embodiment, the limiting member 5 can limit the rotation of the reel 2 when the tape measure antenna 3 is switched to the storage state, thereby allowing the tape measure antenna 3 to maintain the storage state.

[0058] Specifically, the limiting member 5 can be configured as a latch. When the latch cooperates with the first through hole 110 and the second through hole 200, the degree of freedom of rotation of the reel 2 along its own axis can be limited.

[0059] Embodiment 5:

[0060] Reference Figure 5-Figure 8 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0061] It also includes a disconnection module, which is arranged on the housing 1 and is suitable for selectively releasing the restriction of the relative rotation angle between the reel 2 and the housing 1 by the limiting member 5.

[0062] In this embodiment, the disconnect module is used to mechanically disconnect the limiter 5 when the tape measure antenna 3 needs to be switched to the use state. For example, the limiter 5 can be cut or heated and melted by the disconnect module, thereby improving the operational convenience of the electric field antenna device.

[0063] Embodiment 6:

[0064] Reference Figure 5-Figure 8 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0065] The disconnection module comprises a thermal resistor 61 , on which a heating area for heating and disconnecting the annular stopper 5 is formed.

[0066] In this embodiment, a technical solution is adopted to fuse the limiter 5 through the thermal resistor 61. A power supply module can be set on the shell 1 to supply power to the thermal resistor 61. The thermal resistor 61 can also be electrically connected to the power supply of other parts, such as the power supply of the mother satellite.

[0067] When the thermal resistor 61 is energized, it will heat the stopper 5 and then melt it, so as to release the tape measure antenna 3 and switch it to the use state.

[0068] Embodiment 7:

[0069] Reference Figure 5-Figure 8 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0070] The limiting member 5 is configured as a pull rope, and the pull rope passes through the first through hole 110 and the second through hole 200 and then passes through the heating zone.

[0071] In this embodiment, the pull rope has the advantages of low cost and light weight, and is preferably used as the limiter 5. The first through hole 110 and the second through hole 200, and the matching form of the limiter 5, are disclosed in this embodiment as a more representative one, and other connection forms should also be within the protection scope of this embodiment.

[0072] Specifically, the pull rope can be connected to the heating area in a winding form, and the end of the pull rope is connected; after the heating area is energized, the pull rope can be reliably melted to release the tape antenna 3 as a design basis.

[0073] More specifically, the thermal resistor 61 can be provided as one or multiple thermal resistors arranged side by side. When one thermal resistor 61 is provided, the cost is low and the curb weight of the disconnect module is small; when multiple thermal resistors 61 are provided, the cost and curb weight of the disconnect module are increased, but the disconnect reliability of the disconnect module can be improved. Considering the complexity of the space environment, it is preferred to provide two thermal resistors 61.

[0074] Embodiment 8:

[0075] Reference Figure 5-Figure 8 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0076] The heating area is located outside the housing 1, thereby improving the coordination convenience and visibility of the limiting member 5 and the heating area.

[0077] Embodiment 9:

[0078] Reference Figure 1-Figure 10, an embodiment of the present invention provides a dipole antenna system, comprising two electric field antenna devices in any of the above embodiments arranged in mirror symmetry, so that the two tape antennas 3 form dipole antennas extending in a straight line; the housing 1 comprises a base 11 and a shell 12, the base 11 is provided with a first mounting hole 120, a second mounting hole 130, a third mounting hole 140 and a fourth mounting hole 150, and the structures of the two housings 1 are consistent; the projections of the axes of the first mounting hole 120, the second mounting hole 130, the third mounting hole 140 and the fourth mounting hole 150 corresponding to one housing 1 along the front-to-back direction are marked as points A, B, C and D; AC and BD intersect at point O, point O is the projection of the rotation axis of the reel 2 along the front-to-back direction, and AB is parallel to CD; the antenna outlet 100 is opened on the shell 12, and when the tape antenna 3 is switched to the use state and passes through the antenna outlet 100, the extension direction of the tape antenna 3 is parallel to the extension direction of the angular bisector of ∠AOD; the projections of the axes of the first mounting hole 120, the second mounting hole 130, the third mounting hole 140 and the fourth mounting hole 150 corresponding to the other shell 1 along the front-to-back direction are marked as points A', B', C', and D'. When the two electric field antenna devices form a dipole antenna, ABB'A' and the straight line DCC'D' are parallel.

[0079] In this embodiment, when a dipole antenna is required, an electric field antenna device of the same specification is mirrored. In the design, the patent makes the four mounting holes form a cross shape, and makes the angular bisector of ∠AOD parallel to the extension direction of the antenna after unfolding. In this way, when a pair of left and right mirrored electric field antenna devices are installed, as long as ABB'A' and DCC'D' in the figure are parallel, the unfolded antennas are naturally on a straight line, thereby ensuring the reliability of the electric field antenna device under the dipole antenna working condition.

[0080] exist Fig.10 In the figure, OP is the angle bisector of ∠AOD, and QR is the extension line of the tape antenna 3.

[0081] Specifically, the position of the antenna outlet 100 on the housing 1 should be accurately opened according to the above principles to ensure that the extending direction of the tape antenna 3 in the use state is parallel to the extending direction of the angular bisector of ∠AOD.

[0082] It can be understood that, except for any conflicting parts, the above-mentioned embodiments 1-9 can be freely combined to form other implementation modes of the present invention.

[0083] In the description of the present invention, it should be understood that 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0084] 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0086] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0087] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An electric field antenna device based on a tape measure structure, characterized in that: It comprises a housing (1), a reel (2) and a tape antenna (3); The housing (1) is provided with an antenna outlet (100), the reel (2) is rotatably connected inside the housing (1), and one end of the tape antenna (3) is fixed on the reel (2); The tape measure antenna (3) comprises two memory tape measures (31) and a connecting piece (32) connecting the two memory tape measures (31) together, wherein the memory tape measures (31) have a cross-sectional shape memory of a circular arc, and the circular arc-shaped inner concave surfaces of the two memory tape measures (31) are opposite to each other; Under the action of external force, the measuring tape antenna (3) remains wound around the reel (2) and in a storage state in the housing (1), and at this time, the two measuring tapes (31) overcome their memory shapes and fit together, and accumulate elastic potential energy; When the external force is released, the measuring tape antenna (3) is driven by its restoring force to extend outward from the antenna outlet (100) to a use state, and at this time, the two memory measuring tapes (31) are deformed to a memory shape.

2. The electric field antenna device based on the tape measure structure according to claim 1, characterized in that: The connecting piece (32) is annular, and the circumference of the connecting piece (32) is greater than or equal to the circumference of the two memory measuring tapes (31) after being buckled together; The inner wall of the connecting member (32) forms an adhesive section and a non-adhesive section which are connected to each other, the adhesive section is bonded to the outer convex surface of one of the memory tape measures (31), and the non-adhesive section is in contact with the outer convex surface of another of the memory tape measures (31).

3. The electric field antenna device based on the tape measure structure as claimed in claim 2, characterized in that: The connecting member (32) comprises an annular adhesive tape (321) and a gasket (322), wherein the gasket (322) is bonded to the inner wall of the annular adhesive tape (321) to form the non-bonding section, and the area of ​​the annular adhesive tape (321) other than the gasket (322) forms the bonding section; The annular adhesive tape (321) and the gasket (322) are both single-sided adhesive tape structures, and the adhesive surface of the adhesive tape forming the gasket (322) is bonded to the adhesive surface of the annular adhesive tape.

4. The electric field antenna device based on a tape measure structure as claimed in claim 1, characterized in that: When the measuring tape antenna (3) is in the storage state, the cross-sections of the two memory measuring tapes (31) are linear.

5. The electric field antenna device based on a tape measure structure as claimed in claim 1, characterized in that: It also includes a limiting member (5); The housing (1) is provided with a first through hole (110), the reel (2) is provided with a second through hole (200), and the limiting member (5) can pass through the first through hole (110) and the second through hole (200) to connect the reel (2) and the housing (1) in a selective manner and with a limited relative rotation angle, thereby limiting the length of the tape measure antenna (3) extending in a direction away from the housing (1).

6. The electric field antenna device based on the tape measure structure as claimed in claim 5, characterized in that: It also comprises a disconnection module, which is arranged on the housing (1) and is suitable for selectively releasing the restriction of the relative rotation angle between the reel (2) and the housing (1) by the limiting member (5).

7. The electric field antenna device based on a tape measure structure as claimed in claim 6, characterized in that: The disconnection module comprises a thermal resistor (61), and a heating area is formed on the thermal resistor (61) for heating and disconnecting the annular limiting member (5); The limiting member (5) is configured as a pull rope, and the pull rope passes through the first through hole (110) and the second through hole (200) and then passes through the heating zone.

8. The electric field antenna device based on the tape measure structure as claimed in claim 7, characterized in that: The heating zone is located outside the housing (1).

9. The electric field antenna device based on a tape measure structure as claimed in claim 1, characterized in that: It also comprises a rotating component (7), wherein the rotating component (7) is detachably connected to the reel (2) so as to selectively rotate the reel (2) so as to enable the tape measure antenna (3) to switch to the storage state; The rotating component (7) is configured as a handle detachably connected to the reel (2).

10. A dipole antenna system, characterized in that: comprising two electric field antenna devices as claimed in any one of claims 1 to 9 arranged in mirror symmetry, so that the two tape antennas (3) form dipole antennas extending in a straight line; The housings (1) each comprise a base (11) and a shell (12); the base (11) is provided with a first mounting hole (120), a second mounting hole (130), a third mounting hole (140) and a fourth mounting hole (150); the two housings (1) have the same structure; The projections of the axes of the first mounting hole (120), the second mounting hole (130), the third mounting hole (140) and the fourth mounting hole (150) corresponding to the housing (1) along the front-to-back direction are marked as points A, B, C and D; AC and BD intersect at point O, point O is the projection of the rotation axis of the scroll (2) along the front-to-back direction, and AB is parallel to CD; The antenna outlet (100) is opened on the housing (12), and when the tape measure antenna (3) is switched to the use state, the extension direction of the tape measure antenna (3) is parallel to the extension direction of the angular bisector of ∠AOD; The projections of the axes of the first mounting hole (120), the second mounting hole (130), the third mounting hole (140) and the fourth mounting hole (150) corresponding to the other housing (1) along the front-to-back direction are marked as points A', B', C', and D'. When the two electric field antenna devices form the dipole antenna, ABB'A' and the straight line DCC'D' are parallel.

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