CN111342190A - Folding and unfolding structure and folding and unfolding method of log periodic antenna - Google Patents
Folding and unfolding structure and folding and unfolding method of log periodic antenna Download PDFInfo
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- CN111342190A CN111342190A CN202010284216.0A CN202010284216A CN111342190A CN 111342190 A CN111342190 A CN 111342190A CN 202010284216 A CN202010284216 A CN 202010284216A CN 111342190 A CN111342190 A CN 111342190A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H—ELECTRICITY
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
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Abstract
The invention relates to a folding and unfolding structure of a log periodic antenna and a folding and unfolding method of the log periodic antenna, wherein the folding and unfolding structure comprises a log periodic antenna array, the log periodic antenna array comprises a truss, a plurality of layers of first antennas, a plurality of first connecting pieces and a first antenna folding and unfolding device, the truss is arranged on the truss, each layer of first antenna comprises a pair of first oscillators, the first oscillators are respectively connected to two sides of the truss, each first oscillator comprises a first fixed section and a first movable section movably connected with the first fixed section, and one end, far away from the first movable section, of the first fixed section is connected with the truss; two ends of each first connecting piece are respectively connected with first movable sections of two first vibrators adjacent to each other in the extending direction of the truss; the first antenna folding and unfolding device is installed on the truss and connected with the first movable sections on two sides of the truss, and the first antenna folding and unfolding device is used for unfolding and folding the first antenna. The log periodic antenna array can be folded, the occupied area is reduced, and the problem of difficult transportation caused by overlong length of the oscillator is solved.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a folding and unfolding structure and a folding and unfolding method of a log periodic antenna.
Background
The short wave antenna has the characteristics of long transmission distance, low cost, strong anti-interference capability and the like, and has an irreplaceable unique position in the field of military and civil communication due to the easy operability and flexibility of the equipment. The short wave antenna in the short wave antenna is widely applied due to the advantages of wide frequency band, good directivity and the like, but when the transmission frequency of the short wave antenna is required to be 3-30Mhz, the length of the corresponding log-periodic antenna element is about 25m, namely the length of the short wave antenna element is about 15 m even if a 3-wire antenna structure is used, and the short wave antenna is a great challenge for the current vehicle-mounted transportation required width not to exceed 3.5 m. How to fold the log periodic antenna element to a proper transportation width is a problem to be solved urgently at present.
Disclosure of Invention
Therefore, it is necessary to provide a foldable structure of a log periodic antenna, which can fold up the log periodic antenna array, reduce the occupied area, and solve the transportation difficulty problem caused by the long length of the oscillator.
A folded and unfolded structure of a log periodic antenna, comprising:
the system comprises a log periodic antenna array, a first antenna and a second antenna, wherein the log periodic antenna array comprises a truss and a plurality of layers of first antennas arranged on the truss, each layer of first antenna comprises a pair of first oscillators, the first oscillators are respectively connected to two sides of the truss, each first oscillator comprises a first fixed section and a first movable section movably connected with the first fixed section, and one end, far away from the first movable section, of the first fixed section is connected with the truss;
the two ends of each first connecting piece are respectively connected with the first movable sections of the two first vibrators adjacent to each other in the extending direction of the truss; and
the first antenna is received and is expanded the device, and the first antenna is received and is expanded the device and install in the truss to connect the first movable segment of truss both sides, first antenna is received and is expanded the device and be used for launching and drawing in first antenna.
According to the folding and unfolding structure of the log periodic antenna, the first antenna folding and unfolding device is adopted to fold the first antenna connected with the first antenna folding and unfolding device on the corresponding layer, the first connecting piece moves along with the movement of the first movable section of the first antenna on the layer and drives the first movable sections of the first antennas not connected with the first antenna folding and unfolding device on other layers, all the first antennas are unfolded and folded, the occupied area and the unfolding length of the first oscillator are reduced, the problem of difficult transportation caused by the overlong length of the first oscillator is solved, and the probability of damage of the first antenna is further reduced; the first connecting piece plays the effect of supporting each layer of first antenna to and as the driven part of first antenna exhibition device, drive other first antennas that do not connect first antenna exhibition device through first connecting piece and expand and draw in, reach the effect that all first antennas were folded and unfolded in step, simple structure, work efficiency is high.
In one embodiment, the first antenna folding and unfolding device comprises a driver installed on the truss and a first left push rod and a first right push rod which are connected with the driver, and the first left push rod and the first right push rod are respectively connected with the first movable sections of the adjacent pair of first vibrators.
In one embodiment, the length of the first vibrator decreases gradually from layer to layer along the extending direction of the truss, the first left push rod and the first right push rod form a V shape together, and the opening of the V shape faces to one end where the first antenna with the longest length is located.
In one embodiment, the first antennas of each layer are parallel to each other along the extension direction of the truss.
In one embodiment, two adjacent first connecting pieces located on the same side are arranged in a staggered manner along the extending direction of the truss.
In one embodiment, all the first antennas are connected with the truss to form a first array, the log periodic antenna array further comprises a second array arranged on the truss, the second array comprises a plurality of layers of second antennas, each layer of the second antennas comprises a pair of second oscillators, the pair of second oscillators are respectively connected to two sides of the truss, each second oscillator comprises a second fixed section and a second movable section movably connected with the second fixed section, and one end, far away from the second movable section, of the second fixed section is connected with the truss; the second antenna is parallel to the first antenna, and the second antenna with the shortest length in the second array is shorter than the first antenna with the shortest length in the first array;
the folding and unfolding structure of the log periodic antenna further comprises a plurality of second connecting pieces, and two ends of each second connecting piece are respectively connected with second movable sections of two second oscillators adjacent to each other in the extending direction of the truss;
the pair periodic antenna folding and unfolding structure further comprises a second antenna folding and unfolding device, the second antenna folding and unfolding device is installed on the truss and connected with the second movable sections on the two sides of the truss, and the second antenna folding and unfolding device is used for unfolding and folding the second antenna.
In one embodiment, the first antenna folding and unfolding device comprises a driver arranged on the truss and a first left push rod and a first right push rod which are connected with the driver, the first left push rod and the first right push rod are respectively connected with first movable sections of a pair of adjacent first vibrators, and the first left push rod and the first right push rod form a V shape together; the second antenna folding and unfolding device comprises a driver arranged on the truss and a second left push rod and a second right push rod which are connected with the driver, the second left push rod and the second right push rod are respectively connected with second movable sections of a pair of adjacent second vibrators, and the second left push rod and the second right push rod jointly form a V shape; the V-shaped back-to-second array formed by the first left push rod and the first right push rod and the V-shaped back-to-first array formed by the second left push rod and the second right push rod.
In one embodiment, along the extending direction of the truss, the lengths of the first antenna and the second antenna decrease gradually from layer to layer, the first connecting pieces located on the same side of the truss are located on the same straight line, and the second connecting pieces located on the same side of the truss are located on the same straight line.
A method for unfolding a log periodic antenna comprises the following steps:
when the log periodic antenna array is furled, assuming that the log periodic antenna array is in a completely unfolded state, the first antenna furling and unfolding device acts to drive the first left push rod and the first right push rod to pull the first vibrators connected with the first left push rod and the first right push rod, and further pull the first connecting piece, and other first vibrators which are not connected with the first left push rod and the first push rod are furled in a direction close to the truss along with the movement of the first connecting piece;
when the log periodic antenna array is unfolded, assuming that the log periodic antenna array is in a completely folded state, the first antenna folding and unfolding device acts to drive the first left push rod and the first right push rod to push the first vibrators connected with the first left push rod and the first right push rod, so that the first connecting piece is pushed, and other first vibrators which are not connected with the first left push rod and the first push rod are unfolded along with the movement of the first connecting piece in the direction away from the truss.
In one embodiment, the method for deploying the log periodic antenna comprises the following steps:
when the log periodic antenna array is furled, assuming that the log periodic antenna array is in a completely unfolded state, the first antenna furling and unfolding device acts to drive the first left push rod and the first right push rod to pull the first vibrators connected with the first left push rod and the first right push rod, and further pull the first connecting piece, and other first vibrators which are not connected with the first left push rod and the first push rod are furled in a direction close to the truss along with the movement of the first connecting piece;
the second antenna folding and unfolding device acts to drive the second left push rod and the second right push rod to pull the second vibrators connected with the second left push rod and the second right push rod so as to pull the second connecting piece, other second vibrators which are not connected with the second left push rod and are provided with second push rods are folded in the direction close to the truss along with the movement of the second connecting piece, the folding direction of the first antenna faces the second array, and the folding direction of the second antenna faces the first array;
when the log periodic antenna array is unfolded, assuming that the log periodic antenna array is in a completely folded state, the first antenna folding and unfolding device acts to drive the first left push rod and the first right push rod to push the first vibrators connected with the first left push rod and the first right push rod, so that the first connecting piece is pushed, and other first vibrators which are not connected with the first left push rod and the first push rod are unfolded in a direction away from the truss along with the movement of the first connecting piece;
and the second antenna folding and unfolding device acts to drive the second left push rod and the second right push rod to push the second oscillator connected with the second left push rod and the second right push rod, so that the second connecting piece is pushed, and other second oscillators which are not connected with the second left push rod and the second right push rod are unfolded along the direction far away from the truss along with the movement of the second connecting piece.
Drawings
Fig. 1 is a schematic diagram of a fully unfolded state of a folded and unfolded structure of a log periodic antenna according to embodiment 1 of the present invention;
fig. 2 is a schematic view of the fully folded state of the folded and unfolded structure of the log periodic antenna in embodiment 1;
fig. 3 is a schematic view of a fully unfolded state of the folded and unfolded structure of the log periodic antenna according to embodiment 2;
fig. 4 is a schematic diagram of a fully folded state of the folded and unfolded structure of the log periodic antenna in embodiment 2.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
As shown in fig. 1 and fig. 2, the retractable structure 100 of the log periodic antenna of the present embodiment includes a log periodic antenna array 20, a plurality of first connecting elements 30 mounted on the log periodic antenna array 20, and a first antenna retracting device 40, and can automatically retract the log periodic antenna array 20, so as to reduce the occupied area thereof, and solve the problem of transportation difficulty caused by the long length of the oscillator.
As shown in fig. 1, the log periodic antenna array 20 includes a truss 21 and a plurality of layers of first antennas 22 mounted on the truss 21, each layer of the first antennas 22 includes a pair of first oscillators 23, the pair of first oscillators 23 are respectively connected to two sides of the truss 21, the first oscillators 23 include a first fixed section 24 and a first movable section 25 movably connected to the first fixed section 24, and one end of the first fixed section 24 away from the first movable section 25 is connected to the truss 21.
Specifically, along the extending direction of the truss 21, the length of the first fixing section 24 extending outward from the connection point of the first fixing section and the truss 21 decreases gradually layer by layer, so that a folding gradient is formed when the first fixing section is folded, the first fixing section is folded layer by layer, and the adjacent two layers of first antennas 22 are not interfered with each other. Preferably, the length of the first oscillator 23 extending outward from the connection point of the first oscillator and the truss 21 is gradually decreased layer by layer to form a structure coated layer by layer, so as to reduce the possibility of damaging the first antenna 22.
Further, along the extending direction of the truss 21, the first antennas 22 of each layer are parallel to each other, so that cross interference generated in the folding and unfolding processes is avoided, construction is hindered, and the antennas are damaged.
It is understood that the first vibrator 23 is made of a metal conductor, and may be a sheet vibrator, or other types of vibrators, as long as the required electromagnetic signal can be generated.
The first fixed section 24 and the first movable section 25 are connected by a metal hinge or a pin shaft seat with 90-degree limit, so that the first movable section 25 can flexibly move relative to the first fixed section 24 and is limited to move within a 90-degree range, and damage caused by overlarge moving amplitude of the first movable section 25 in the transportation or use process is avoided.
The truss 21 is made of a metal material, and the cross-sectional structure thereof may be rectangular or triangular, so as to provide a firm supporting structure for the first antenna 22.
Insulation processing is carried out between the first oscillator 23 and the truss 21, and the truss 21 is prevented from interfering the electromagnetic signal of the first oscillator 23.
As shown in fig. 2, both ends of each first connecting member 30 are connected to the first movable segments 25 of two first vibrators 23 adjacent to each other in the extending direction of the truss 21. It is understood that the first link 30 is ball-hinged to the first movable section 25 of the first vibrator 23 through a plurality of degrees of freedom, and is insulated from the first vibrator 23. The first connecting member 30 is mainly used for connecting two adjacent first vibrators 23 along the extending direction of the truss 21, has a supporting function on the first vibrators 23, and is used as a driven part of the first antenna folding and unfolding device 40 to drive the first movable section 25 to move, so that the first antennas 22 on each layer can be uniformly unfolded and folded. The first connecting member 30 may be a rod-like structure, or a member composed of a plurality of components.
Further, along the extending direction of the truss 21, two adjacent first connecting members 30 located on the same side are arranged in a staggered manner, so that a plurality of supporting points are formed, and the support is firm.
As shown in fig. 1, the first antenna furling and unfolding apparatus 40 is installed at the truss 21 and connects the first movable sections 25 at both sides of the truss 21, and the first antenna furling and unfolding apparatus 40 is used to unfold and fold the first antenna 22. The number of the first antenna furling and unfolding devices 40 may be one or more, and the logarithmically periodic antenna array 20 can be furled and unfolded. It will be appreciated that when a plurality of first antenna extending/retracting devices 40 are used, the extending/retracting force is large, and when each layer of the first antenna 22 is connected to the first antenna extending/retracting device 40, the material is wasted, and the driven action of the first connecting member 30 is greatly reduced.
The structure 100 for unfolding a log periodic antenna of the present embodiment adopts four first antenna unfolding apparatuses 40, which are mounted on the truss 21, each first antenna unfolding apparatus 40 is connected to one of the first antennas 22, and the adjacent first antenna unfolding apparatuses 40 are spaced by 3 to 5 layers of the first antennas 22, so that the unfolding force is distributed in the whole log periodic antenna array 20 in a balanced manner.
Specifically, the first antenna furling and unrolling device 40 includes a driver mounted on the truss 21 and a first left push rod 41 and a first right push rod 42 connecting the driver, and the first left push rod 41 and the first right push rod 42 are respectively connected to the first movable sections 25 of the adjacent pair of first vibrators 23.
The first left push rod 41 and the first right push rod 42 form a V shape together, and the opening of the V shape faces the end where the first antenna 22 with the longest length is located.
The method for unfolding the log periodic antenna comprises the following steps:
when the log periodic antenna array 20 is folded, assuming that the log periodic antenna array 20 is in a fully unfolded state, the first antenna folding and unfolding device 40 acts to drive the first left push rod 41 and the first right push rod 42 to pull the first vibrator 23 connected thereto, and further pull the first connecting member 30, and the other first vibrators 23 not connected to the first left push rod 41 and the first push rod are folded in a direction close to the truss 21 along with the movement of the first connecting member 30. The folding angle of the first vibrator 23 is an angle folded in the direction of the truss 21, and an appropriate folding angle can be selected as required.
When the log periodic antenna array 20 is unfolded, assuming that the log periodic antenna array 20 is in a completely folded state, the first antenna folding and unfolding device 40 acts to drive the first left push rod 41 and the first right push rod 42 to push the first vibrator 23 connected thereto, so as to push the first connecting member 30, and the other first vibrators 23 not connected to the first left push rod 41 and the first push rod are unfolded in a direction away from the truss 21 along with the movement of the first connecting member 30. Generally, after the log periodic antenna array 20 is unfolded, the connection angle between the first movable segment 25 and the first fixed segment 24 is 180 °, that is, the first movable segment 25 and the first fixed segment 24 are located on a straight line.
The above-mentioned structure 100 of taking up and unfolding of log periodic antenna adopts first antenna take-up and unfolding device 40 to draw up its first antenna 22 of the corresponding layer of connection, first connecting piece 30 moves along with the activity of the first active segment 25 of this layer of first antenna 22, and drive the first active segment 25 of the first antenna 22 that other layers do not connect first antenna take-up and unfolding device 40, realize the expansion and draw up of all first antennas 22, reduce its area occupied and the expansion length of first oscillator 23, the difficult problem of transportation that has solved first oscillator 23 length overlength and brought has solved, and then the chance that first antenna 22 damaged has been reduced. The first connecting piece 30 plays a role of supporting the first antennas 22 on each layer, and is used as a driven part of the first antenna folding and unfolding device 40, and the first connecting piece 30 drives other first antennas 22 which are not connected with the first antenna folding and unfolding device 40 to be unfolded and folded, so that the effect of synchronously folding and unfolding all the first antennas 22 is achieved, the structure is simple, and the working efficiency is high.
Example 2
As shown in fig. 3 and 4, the difference between the folded structure 100a of the log periodic antenna of the present embodiment and the folded structure 100 of the log periodic antenna of the embodiment 1 is:
all the first antennas 22 are connected with the truss 21 to form a first array 26, the log periodic antenna array 20a further includes a second array 27 installed on the truss 21, the second array 27 includes multiple layers of second antennas (not shown), each layer of second antenna includes a pair of second oscillators 210, the pair of second oscillators 210 are respectively connected to two sides of the truss 21, each second oscillator 210 includes a second fixed section 28 and a second movable section 29 movably connected to the second fixed section 28, and one end of the second fixed section 28, which is far away from the second movable section 29, is connected with the truss 21; the first array 26 is mounted on the truss 21 spaced from the second array 27, and the second antenna is parallel to the first antenna 22, and the second antenna with the shortest length in the second array 27 is shorter than the first antenna 22 with the shortest length in the first array 26.
Further, along the extending direction of the truss 21, the lengths of the first antenna 22 and the second antenna decrease layer by layer, and the lengths of the second fixing sections 28 may be the same or may decrease layer by layer from the end portion to the direction of the first array 26, and the length of the second fixing section 28 closest to the first array 26 is greater than the length of the first fixing section 24 closest to the second array 27.
It is understood that the second vibrator 210 is made of a metal conductor, and may be a sheet vibrator, or other types of vibrators, as long as the required electromagnetic signal can be generated.
The second fixed section 28 and the second movable section 29 are connected by a metal hinge or a pin shaft seat with 90-degree limit, so that the second movable section 29 can flexibly move relative to the second fixed section 28 and is limited to move within a 90-degree range, and damage caused by overlarge moving amplitude of the second movable section 29 in the transportation or use process is avoided.
The retractable structure 100 of the log periodic antenna of this embodiment further includes a plurality of second connecting members 50, and both ends of each second connecting member 50 are respectively connected to the second active sections 29 of two second elements 210 adjacent to each other along the extending direction of the truss 21.
In this embodiment, along the extending direction of the truss 21, the first connecting members 30a located on the same side of the truss 21 are located on the same straight line, and the second connecting members 50 located on the same side of the truss 21 are located on the same straight line. It is understood that the first connecting member 30 may also be configured as: along the extending direction of the truss 21, two adjacent first connecting pieces 30a on the same side are arranged in a staggered manner, and two adjacent second connecting pieces 50 on the same side are arranged in a staggered manner.
The second connection member 50 has the same structure as the first connection member 30a, and the second connection member 50 is hinge-coupled to the second movable section 29 of the second vibrator 210 by the multi-degree-of-freedom ball and is insulated from the second vibrator 210.
The foldable structure 100a of the log periodic antenna of this embodiment further includes a second antenna folding and unfolding device 60, the second antenna folding and unfolding device 60 is installed on the truss 21 and connected to the second movable segments 29 on two sides of the truss 21, and the second antenna folding and unfolding device 60 is used for unfolding and folding the second antenna.
The second antenna unfolding device 60 includes a driver mounted on the truss 21, and a second left push rod 61 and a second right push rod 62 connected to the driver, the second left push rod 61 and the second right push rod 62 are respectively connected to the second movable sections 29 of the adjacent pair of second oscillators 210, and the second left push rod 61 and the second right push rod 62 form a V shape together. The first left push rod 41 and the first right push rod 42 form a V-shaped back-to-second array 27, and the second left push rod 61 and the second right push rod 62 form a V-shaped back-to-first array 26.
The method for unfolding the folding and unfolding structure 100a of the log periodic antenna in this embodiment includes the following steps:
when the log periodic antenna array 20a is furled, assuming that the log periodic antenna array 20a is in a fully-unfolded state, the first antenna furling and unfurling device 40 acts to drive the first left push rod 41 and the first right push rod 42 to pull the first vibrator 23 connected with the first left push rod and pull the first connecting piece 30a, and other first vibrators 23 which are not connected with the first left push rod 41 and the first push rod are furled in a direction close to the truss 21 along with the movement of the first connecting piece 30 a;
the second antenna folding and unfolding device 60 acts to drive the second left push rod 61 and the second right push rod 62 to pull the second oscillator 210 connected with the second left push rod 61 and the second right push rod 62, so as to pull the second connecting piece 50, and other second oscillators 210 not connected with the second left push rod 61 and the second push rod are folded along with the movement of the second connecting piece 50 in the direction close to the truss 21, the folding direction of the first antenna 22 faces the second array 27, and the folding direction of the second antenna faces the first array 26.
When the log periodic antenna array 20a is unfolded, assuming that the log periodic antenna array 20a is in a completely folded state, the first antenna folding and unfolding device 40 acts to drive the first left push rod 41 and the first right push rod 42 to push the first vibrator 23 connected thereto, and further push the first connecting piece 30a, and the other first left push rod 41 and the first vibrator 23 with the first push rod, which are not connected thereto, are unfolded in a direction away from the truss 21 along with the movement of the first connecting piece 30a until the connection angle between the first movable section 25 and the first fixed section 24 forms 180 degrees;
the second antenna unfolding device 60 acts to drive the second left push rod 61 and the second right push rod 62 to push the second vibrator 210 connected with the second left push rod and the second right push rod 62, so as to push the second connecting piece 50, and other second vibrators 210 which are not connected with the second left push rod 61 and the second push rod are unfolded along with the movement of the second connecting piece 50 in the direction away from the truss 21 until the connection angle between the second movable section 29 and the second fixed section 28 is 180 degrees.
The log-periodic antenna array 20 can be folded in the log-periods of the embodiments 1 and 2, so that the occupied area is reduced, and the problem of difficult transportation caused by overlong length of the oscillator is solved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A structure for deploying and retracting a log periodic antenna, comprising:
the log periodic antenna array comprises a truss and a plurality of layers of first antennas arranged on the truss, each layer of the first antenna comprises a pair of first oscillators, the first oscillators are respectively connected to two sides of the truss, each first oscillator comprises a first fixed section and a first movable section movably connected with the first fixed section, and one end, far away from the first movable section, of the first fixed section is connected with the truss;
the two ends of each first connecting piece are respectively connected with the first movable sections of the two first vibrators adjacent to each other in the extending direction of the truss; and
the first antenna folding and unfolding device is installed on the truss and connected with the first movable sections on two sides of the truss, and the first antenna folding and unfolding device is used for unfolding and folding the first antenna.
2. The structure of claim 1, wherein the first antenna deploying and retracting device comprises a driver mounted on the truss and a first left push rod and a first right push rod connected to the driver, and the first left push rod and the first right push rod are respectively connected to the first active sections of an adjacent pair of the first elements.
3. The structure of claim 1, wherein the length of the first element decreases gradually from layer to layer along the extending direction of the truss, the first left push rod and the first right push rod form a V-shape together, and the opening of the V-shape faces the end of the first antenna with the longest length.
4. The retractable structure of log periodic antenna as claimed in claim 3, wherein the first antennas of each layer are parallel to each other along the extending direction of the truss.
5. The structure of any one of claims 1 to 4, wherein two adjacent first connectors on the same side are disposed in a staggered manner along the extending direction of the truss.
6. The structure of claim 1, wherein all the first antennas are connected to the truss to form a first array, the array further comprises a second array mounted on the truss, the second array comprises a plurality of layers of second antennas, each layer of the second antennas comprises a pair of second elements, the pair of second elements are respectively connected to two sides of the truss, each second element comprises a second fixed section and a second movable section movably connected to the second fixed section, and one end of the second fixed section, which is far away from the second movable section, is connected to the truss; the second antenna is parallel to the first antenna, and the second antenna with the shortest length in the second array is shorter than the first antenna with the shortest length in the first array;
the folding and unfolding structure of the log periodic antenna further comprises a plurality of second connecting pieces, and two ends of each second connecting piece are respectively connected with the second movable sections of two second oscillators adjacent to each other along the extending direction of the truss;
the folding and unfolding structure of the log periodic antenna further comprises a second antenna folding and unfolding device, the second antenna folding and unfolding device is installed on the truss and connected with the second movable sections on two sides of the truss, and the second antenna folding and unfolding device is used for unfolding and folding the second antenna.
7. The structure of claim 6, wherein the first antenna deploying and retracting device comprises a driver mounted on the truss and a first left push rod and a first right push rod connected to the driver, the first left push rod and the first right push rod are respectively connected to the first movable sections of the adjacent pair of the first oscillators, and the first left push rod and the first right push rod together form a V shape; the second antenna folding and unfolding device comprises a driver arranged on the truss and a second left push rod and a second right push rod which are connected with the driver, the second left push rod and the second right push rod are respectively connected with the second movable sections of the adjacent pair of second vibrators, and the second left push rod and the second right push rod jointly form a V shape; the V-shaped structure formed by the first left push rod and the first right push rod faces back to the second array, and the V-shaped structure formed by the second left push rod and the second right push rod faces back to the first array.
8. The structure of claim 6 or 7, wherein the lengths of the first and second antennas decrease from layer to layer along the extending direction of the truss, the first connecting members on the same side of the truss are located on the same straight line, and the second connecting members on the same side of the truss are located on the same straight line.
9. A method for deploying a log periodic antenna, based on the deploying structure of the log periodic antenna as claimed in any one of claims 1 to 8, the method for deploying the log periodic antenna comprises the following steps:
when the log periodic antenna array is furled, assuming that the log periodic antenna array is in a completely unfolded state, the first antenna furling and unfolding device acts to drive the first left push rod and the first right push rod to pull the first oscillator connected with the first left push rod and the first right push rod, and further pull the first connecting piece, and other first oscillators which are not connected with the first left push rod and the first push rod are furled in a direction close to the truss along with the movement of the first connecting piece;
when the log-periodic antenna array is unfolded, assuming that the log-periodic antenna array is in a completely folded state, the first antenna folding and unfolding device acts to drive the first left push rod and the first right push rod to push the first oscillator connected with the first left push rod and the first right push rod, so that the first connecting piece is pushed, and other first oscillators not connected with the first left push rod and the first push rod are unfolded along with the movement of the first connecting piece in a direction away from the truss.
10. A method of deploying a log periodic antenna according to claim 9, comprising the steps of:
when the log periodic antenna array is furled, assuming that the log periodic antenna array is in a completely unfolded state, the first antenna furling and unfolding device acts to drive the first left push rod and the first right push rod to pull the first oscillator connected with the first left push rod and the first right push rod, and further pull the first connecting piece, and other first oscillators which are not connected with the first left push rod and the first push rod are furled in a direction close to the truss along with the movement of the first connecting piece;
the second antenna folding and unfolding device acts to drive the second left push rod and the second right push rod to pull the second oscillator connected with the second left push rod and the second right push rod, so that the second connecting piece is pulled, other second oscillators which are not connected with the second left push rod and the second push rod are folded along with the movement of the second connecting piece in the direction close to the truss, the folding direction of the first antenna faces the second array, and the folding direction of the second antenna faces the first array;
when the log periodic antenna array is unfolded, assuming that the log periodic antenna array is in a completely folded state, the first antenna folding and unfolding device acts to drive the first left push rod and the first right push rod to push the first oscillator connected with the first left push rod and the first right push rod, so that the first connecting piece is pushed, and other first oscillators not connected with the first left push rod and the first push rod are unfolded along with the movement of the first connecting piece in a direction away from the truss;
and the second antenna folding and unfolding device acts to drive the second left push rod and the second right push rod to push the second oscillator connected with the second left push rod and the second right push rod, so that the second connecting piece is pushed, and other second oscillators which are not connected with the second left push rod and the second push rod are unfolded along with the movement of the second connecting piece in the direction far away from the truss.
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