CN109301441B - Yagi antenna capable of reducing multipath attenuation - Google Patents
Yagi antenna capable of reducing multipath attenuation Download PDFInfo
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- CN109301441B CN109301441B CN201811267906.4A CN201811267906A CN109301441B CN 109301441 B CN109301441 B CN 109301441B CN 201811267906 A CN201811267906 A CN 201811267906A CN 109301441 B CN109301441 B CN 109301441B
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- 238000005562 fading Methods 0.000 claims abstract description 7
- 230000005284 excitation Effects 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
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- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a yagi antenna capable of reducing multipath attenuation, which comprises a supporting rod and a reflector connected to the supporting rod, wherein the reflector comprises a first reflecting component connected to the supporting rod and a second reflecting component used for eliminating interference electromagnetic wave signals from unspecified paths, and the second reflecting component is folded or fixedly connected to one end of the first reflecting component far away from the supporting rod; the second reflection assembly is newly added on the basis of the first reflection assembly, so that the reflection coverage of the yagi antenna is increased, the reflection capability in a specific direction is enhanced, the effect of eliminating reflection is achieved on the electromagnetic wave signals which are not transmitted by a specified path and have interference, the intensity and the accuracy of receiving and transmitting the electromagnetic wave signals in the direction of the director by the yagi antenna are greatly enhanced, and the interference of multipath fading is effectively reduced.
Description
Technical Field
The invention relates to the technical field of yagi antennas, in particular to a yagi antenna capable of reducing multipath attenuation.
Background
The basic structure of the yagi antenna consists of an active oscillator, a passive oscillator and a supporting rod, wherein the passive oscillator is divided into a director and a reflector according to different functions; the active vibrator is used for receiving electric wave, and is a reflector slightly longer than the active vibrator, and is arranged on one side of the active vibrator and plays a role in reflecting the electric wave transmitted from the side direction; a director which is slightly shorter than the active vibrator and is positioned at the other side of the active vibrator can strengthen the electric wave transmitted from the side direction; there may be a number of directors, the more directors, the sharper the direction and the higher the gain.
At present, the traditional yagi antenna is influenced by multipath effect, and the intensity of electromagnetic waves is weakened and electromagnetic wave signals are interfered; the multipath effect refers to a phenomenon that electromagnetic waves propagate through different paths due to reflection and interference of nearby buildings or antenna groups, etc., and the electromagnetic waves propagated through different paths reach a receiving end at different times, and overlap each other according to respective phases to cause interference, so that an original signal is distorted or an error occurs; in order to reduce the interference of such a phenomenon, the receiving capability of the electromagnetic wave signal in the specified direction is generally enhanced by increasing the reflection coverage of the reflector on the yagi antenna, but the prior art is often not capable of achieving the expected effect due to the limitation of the structure and the size of the reflector.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a foldable yagi antenna which is convenient to package and can reduce multipath attenuation.
In order to achieve the above purpose, the present invention provides the following solutions: the utility model provides a can reduce yagi antenna of multipath decay, is including the bracing piece and connect the reflector on the bracing piece, wherein, the reflector including connect in first reflection subassembly on the bracing piece, the reflector is still including being used for eliminating the second reflection subassembly that comes from the interference electromagnetic wave signal of unspecified route, wherein, second reflection subassembly folding or fixed connection in the one end that first reflection subassembly kept away from the bracing piece.
Further, the second reflecting component is connected with the first reflecting component in a folding way through a preset folding component; the folding assembly comprises a first folding piece and a second folding piece, wherein the first folding piece and the second folding piece are respectively connected with the first reflecting assembly and the second reflecting assembly; one side of the first folding piece is hinged with one side of the second folding piece, and meanwhile, the other side of the first folding piece is in interference fit with the other side of the second folding piece.
Further, the end surfaces of the first folding piece and the second folding piece, which are close to each other, are inclined surfaces which are in mutual interference fit, wherein two connecting protrusions are arranged on the inner sides of the first folding piece and the second folding piece; the two connecting protrusions of the second folding piece are clamped between the two connecting protrusions of the first folding piece, and meanwhile, the connecting protrusions on the first folding piece and the second folding piece are penetrated through a preset connecting shaft at the same time, so that the inner sides of the first folding piece and the second folding piece are hinged; a folding buckling hole is formed in the inclined plane of the first folding piece, and a folding buckling column matched with the folding buckling hole is formed in the inclined plane of the second folding piece.
Further, the device also comprises a connecting bracket, wherein the connecting bracket is sleeved and fixed on the supporting rod, and meanwhile, the connecting bracket is formed with a plurality of mounting cylinders; the first reflecting assembly and the second reflecting assembly comprise a supporting circular tube, a plurality of reflecting tubes and two reflecting tube fixing pieces, wherein the reflecting tubes are sequentially arranged and connected on the supporting circular tube in a penetrating manner, and the two reflecting tube fixing pieces are respectively arranged at two ends of the reflecting tubes and are respectively provided with a plurality of mounting holes for embedding the ends of the reflecting tubes in a one-to-one correspondence manner; the first reflecting component penetrates through the end part of the supporting circular tube and is fixed in the mounting cylinder of the connecting bracket, so that the first reflecting component is fixed on the supporting rod through the connecting bracket.
Further, the folding type light reflection device comprises a clamping seat in a U shape, wherein the closed end of the clamping seat is sleeved and fixed on a supporting circular tube of the first reflection assembly, and then when the second reflection assembly is folded onto the first reflection assembly, the supporting circular tube of the second reflection assembly is clamped into the opening end of the clamping seat; the open end of the clamping seat is provided with an adjusting bolt for adjusting the opening degree of the open end.
Further, the vibrator assembly comprises a vibrator box fixed on the supporting rod, an excitation vibrator and a circuit board; the oscillator box is internally provided with a circuit accommodating cavity for accommodating the circuit board and an annular accommodating cavity for accommodating the excitation oscillator, wherein the annular accommodating cavity is identical to the shape of the excitation oscillator, and meanwhile, the annular accommodating cavity is communicated with the circuit accommodating cavity.
Further, a clamping groove for clamping the head of a preset fixing bolt is formed in the top surface of the vibrator box, and the vibrator box is fixed on the supporting rod through the fixing bolt.
Further, the vibrator box is composed of a surface cover and a bottom cover, wherein the inner wall of the surface cover and the inner wall of the bottom cover jointly form the annular accommodating cavity and the circuit accommodating cavity.
Compared with the prior art, the invention has the beneficial effects that the excitation oscillator is sealed in the oscillator box to achieve the beneficial effects of water resistance and sun protection, the excitation oscillator is not exposed to avoid long-time rain and insolation, and the service life of the excitation oscillator is greatly prolonged; the second reflection assembly is newly added on the basis of the first reflection assembly, so that the reflection coverage of the yagi antenna is increased, the reflection capability in a specific direction is enhanced, the effect of eliminating reflection is achieved on the electromagnetic wave signals which are not transmitted by a specified path and have interference, the intensity and the accuracy of receiving and transmitting the electromagnetic wave signals in the direction of the director by the yagi antenna are greatly enhanced, and the interference of multipath fading is effectively reduced; meanwhile, the second reflection assembly and the first reflection assembly can be connected in a foldable mode, and the second reflection assembly is folded on the first reflection assembly during packaging, so that the packaging size is reduced, and convenience is brought to staff in carrying.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present invention.
Fig. 2 is a perspective view of a vibrator assembly according to an embodiment of the present invention.
Fig. 3 is an exploded view of a vibrator assembly according to an embodiment of the present invention.
Fig. 4 is a partial structural view of a first embodiment of the present invention.
FIG. 5 is an exploded view of a folding assembly according to an embodiment of the invention.
Fig. 6 is an exploded view of a connecting bracket according to an embodiment of the present invention.
Fig. 7 is a perspective view of a second embodiment of the present invention.
Fig. 8 is a partial structural diagram of a second embodiment of the present invention.
The device comprises a 1-supporting rod, a 2-director, a 3-vibrator assembly, a 31-vibrator box, a 311-circuit accommodating cavity, a 312-annular accommodating cavity, a 313-clamping groove, a 31 a-face cover, a 31 b-bottom cover, a 32-exciting vibrator, a 33-circuit board, a 4-reflector, a 41-first reflecting assembly, a 42-second reflecting assembly, a 43-supporting circular tube, a 44-reflecting tube, a 45-reflecting tube fixing piece, a 5-folding assembly, a 51-first folding piece, a 52-second folding piece, a 53-inclined plane, a 54-connecting protrusion, a 55-folding buckling hole, a 56-folding buckling column, a 6-connecting support, a 61-mounting cylinder, a 7-clamping seat, a 71-adjusting bolt, an 8-fixed connecting piece and an 81-connecting part.
Detailed Description
The invention is further illustrated by the following examples:
embodiment one:
referring to fig. 1 to 8, the present embodiment is a yagi antenna capable of reducing multipath attenuation, which includes a cylindrical long support rod 1, six circular tubular directors 2, a vibrator assembly 3 and a reflector 4, wherein the directors 2, the vibrator assembly 3 and the reflector 4 are sequentially arranged and fixed along the head end to the tail end of the support rod 1; specifically, six directors 2 vertically penetrate the support bar 1 and are arranged on the support bar 1 in parallel at equal intervals (in order to prevent the directors 2 from falling off, the directors 2 are in interference fit with preformed fixing holes on the support bar 1).
In this embodiment, the vibrator assembly 3 includes a vibrator box 31 fixed on the support rod 1, two excitation vibrators 32, and a circuit board 33 with a signal output end, where a circuit accommodating cavity 311 for accommodating the circuit board 33 is formed in the vibrator box 31; the vibrator box 31 is also provided with two annular accommodating cavities 312 for accommodating the exciting vibrators 32, wherein the annular accommodating cavities 312 are matched with the exciting vibrators 32 (the exciting vibrators 32 are bent to be runway-shaped, the front ends and the tail ends of the exciting vibrators are flush, and the annular accommodating cavities 312 are runway-shaped), and meanwhile, the annular accommodating cavities 312 are communicated with the circuit accommodating cavities 311; specifically, the vibrator box 31 is a hollow shell formed by a surface cover 31a and a bottom cover 31b, wherein an annular accommodating cavity 312 and a circuit accommodating cavity 311 are formed by the inner wall of the surface cover 31a and the inner wall of the bottom cover 31b together, the two annular accommodating cavities 312 are in mirror image distribution, and the circuit accommodating cavity 311 is positioned between the two annular accommodating cavities 312 and is respectively communicated with the two annular accommodating cavities 312; the inner wall of the circuit accommodating cavity 311 is formed with a through hole penetrating through the bottom cover 31b and communicating with the outside, so that the signal output end mounted on the circuit board 33 extends out to be electrically connected with a preset television or set top box; a plurality of semi-arc clamping positions are formed on the inner walls of the two annular accommodating cavities 312 (namely, the inner walls corresponding to the bottom cover 31b and the surface cover 31 a) so as to clamp the exciting vibrator 32 for limiting the exciting vibrator 32, and secondly, the head and tail ends of the exciting vibrator 32 extend into the circuit accommodating cavity 311 and are electrically connected with the circuit board 33 (specifically, two symmetrical screw posts are also formed on the inner walls of the circuit accommodating cavity 311 and are respectively aligned with the pre-formed mounting holes on the circuit board 33, and meanwhile, the head and tail ends of the two exciting vibrators 32 are respectively arranged above the corresponding mounting holes, so that the head and tail ends of the exciting vibrator 32 are respectively and correspondingly threaded through the pre-arranged two fixing screws and respectively and sequentially pass through the head and tail ends of the exciting vibrator 32, the mounting holes on the circuit board 33 and the screw posts, and the head and tail ends of the exciting vibrator 32 are fixedly pressed on the circuit board 33; through such structure for excitation oscillator 32 and circuit board 33 are all encapsulated in airtight oscillator box 31, reach waterproof sun-proof beneficial effect, and excitation oscillator 32 is not exposed in order to avoid receiving long-time rain and insolateing, greatly increased excitation oscillator 32's life.
In the present embodiment, the face cover 31a and the bottom cover 31b of the vibrator case 31 are installed as a hollow case by an ultrasonic process.
In the present embodiment, the top surface of the vibrator case 31 is provided with a locking groove 313 into which the head of a predetermined fixing bolt is locked, and is fixed to the support rod 1 by the fixing bolt.
In this embodiment, the reflector 4 includes two sets of first reflecting components 41 and one set of second reflecting components 42, wherein the two sets of first reflecting components 41 are symmetrically fixed on the supporting rod 1 by taking the axis of the supporting rod 1 as the central axis, and the second reflecting component 42 is connected to one end of one set of first reflecting components 41 (specifically, one end of the first reflecting component 41 far away from the supporting rod 1) through a preset folding component 5; the folding assembly 5 comprises a first folding member 51 and a second folding member 52, wherein the first folding member 51 and the second folding member 52 are respectively connected with the first reflecting assembly 41 and the second reflecting assembly 42; one side of the first folding piece 51 is hinged with one side of the second folding piece 52, and meanwhile, the other side of the first folding piece 51 is in interference fit with the other side of the second folding piece 52; through such a structure, when in actual use, two groups of first reflection assemblies 41 are symmetrically arranged above and below the supporting rod 1 (namely, two first reflection assemblies 41 are symmetrically arranged above and below the oscillator assembly 3 respectively), and the second reflection assembly 42 is rotationally connected to the first reflection assembly 41 below, when the second reflection assembly 42 is in an open state, the reflection surface formed by the second reflection assembly 42 can cover the lower part of the oscillator assembly 3 in a large range, electromagnetic wave signals emitted by the oscillator assembly 3 and electromagnetic wave signals transmitted from the lower part are effectively reflected, the reflection capability of the yagi antenna for the lower part signals is greatly enhanced, the intensity and the accuracy of the electromagnetic wave signals transmitted and received by the yagi antenna in the direction of the director are greatly increased (the yagi antenna is in the actual working process, most interference signals come from the lower part), the signal interference of the yagi antenna from the lower part is effectively reduced, the purpose of reducing multipath attenuation is achieved, and when packaging is needed, the second reflection assembly 42 is stacked on the first reflection assembly 41, the whole size of the yagi antenna is greatly reduced, and the convenience of the personnel is greatly improved.
In this embodiment, the device further comprises a connecting bracket 6, wherein the connecting bracket 6 is sleeved and fixed on the supporting rod 1 (the connecting bracket 6 and the supporting rod 1 are simultaneously penetrated and fixed through by a preset bolt), and meanwhile, the connecting bracket 6 is formed with two mounting cylinders 61 which are mutually symmetrical by taking the axis of the supporting rod 1 as a central axis; the first reflecting component 41 and the second reflecting component 42 comprise a supporting circular tube 43, three reflecting tubes 44 and two reflecting tube fixing pieces 45, wherein the three reflecting tubes 44 are sequentially arranged in parallel at equal intervals and connected to the supporting circular tube 43 in a penetrating manner, the two reflecting tube fixing pieces 45 are respectively arranged at two ends of the reflecting tube 44 and are respectively provided with three mounting holes for embedding the end parts of the three reflecting tubes 44 in a one-to-one correspondence manner, and the three mounting holes on one reflecting tube fixing piece 45 are respectively matched with the end parts of the three reflecting tubes 44 on the same side at the same time, so that the three reflecting tubes 44 are firmly fixed on the supporting circular tube 43; the two sets of first reflecting assemblies 41 are inserted and fixed into the corresponding mounting cylinders 61 (fixed by the preset bolts) of the connecting bracket 6 through the ends of the respective supporting circular tubes 43 and thus fixed to the supporting rod 1 through the connecting bracket 6.
In this embodiment, the first folding member 51 and the second folding member 52 are hollow and cylindrical, and are respectively sleeved and fixedly connected to the ends of the supporting circular tubes 43 of the first reflection assembly 41 and the second reflection assembly 42 through preset bolts; the end surfaces of the first folding piece 51 and the second folding piece 52, which are close to each other, are inclined surfaces 53 which are in mutual interference fit, wherein two connecting protrusions 54 are arranged on the inner sides of the inclined surfaces 53 of the first folding piece 51 and the second folding piece 52; the two connecting protrusions 54 of the second folding member 52 are clamped between the two connecting protrusions 54 of the first folding member 51 (the distance between the two connecting bosses of the second folding member 52 is smaller than the distance between the two connecting protrusions 54 of the first folding member 51 so that the two connecting bosses of the second folding member 52 can be just clamped between the two connecting protrusions 54 of the first folding member 51), meanwhile, the connecting protrusions 54 on the first folding member 51 and the second folding member 52 are penetrated through by preset connecting shafts (the connecting shafts adopt pot nails) at the same time (mutually aligned through holes are formed on the connecting protrusions 54 for penetrating by the connecting shafts) so that the inner sides of the first folding member 51 and the second folding member 52 are hinged, and in this way, the second reflecting assembly 42 rotates relative to the first reflecting assembly 41 so that the second reflecting assembly 42 can be folded on the first reflecting assembly 41; the inclined surface 53 of the first folding piece 51 is provided with a folding button hole 55, and the inclined surface 53 of the second folding piece 52 is provided with a folding button column 56 matched with the folding button hole 55; when the second reflection assembly 42 is in the open state, the inclined surfaces 53 of the first folding member 51 and the second folding member 52 are overlapped and abutted, and meanwhile, the folding buckling holes 55 are matched with the folding buckling columns 56, so that the structure is stable.
In this embodiment, the device further includes a U-shaped holder 7, wherein a closed end of the holder 7 is sleeved and fixed on a supporting circular tube 43 of the first reflection assembly 41, and then, when the second reflection assembly 42 is folded onto the first reflection assembly 41, the supporting circular tube 43 of the second reflection assembly 42 is clamped into an open end of the holder 7; the opening end of the clamping seat 7 is provided with an adjusting bolt 71 for adjusting the opening and closing degree of the opening end; when the second reflection assembly 42 is in the folded state, the supporting circular tube 43 of the second reflection assembly 42 is clamped onto the clamping seat 7 on the corresponding first reflection assembly 41, the second reflection assembly 42 is clamped by screwing the nut of the adjusting bolt 71, so that the second reflection assembly 42 is stably folded on the corresponding first reflection assembly 41, the second reflection assembly 42 cannot fall off and be opened in the process of carrying by a worker, and when the second reflection assembly is required to be opened, the opening end of the clamping seat 7 is loosened by screwing the adjusting bolt 71 so that the second reflection assembly 42 can be separated.
Embodiment two:
referring to fig. 7 and 8, the present embodiment differs from the first embodiment in that: the second reflection assembly 42 is fixedly connected with the first reflection assembly 41 located below, specifically, the second reflection assembly 42 is connected with one end of the first reflection assembly 41 (specifically, one end of the first reflection assembly 41 far away from the supporting rod 1) through a preset fixed connection piece 8, the fixed connection piece 8 comprises two hollow cylindrical connection parts 81, wherein one ends of the two connection parts 81 close to each other are fixedly connected in a welding mode, the two connection parts 81 are at a certain angle and respectively extend outwards to respectively allow the ends of the supporting circular tubes 43 of the first reflection assembly 41 and the second reflection assembly 42 to be inserted into and fixedly connected with each other through preset bolts, at the moment, a certain angle is formed between the first reflection assembly 41 and the second reflection assembly 42, so that the second reflection assembly 42 can be covered below the vibrator assembly 3, signal interference from below of the yagi antenna is reduced, and the effect of reducing multipath attenuation is achieved; secondly, in order to make the structure of the fixing connection member 8 more stable, reinforcing ribs connected with the two connection portions 81 are provided on the inner side surface between the two connection portions 81, respectively.
In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present invention are included in the protection scope of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a can reduce yagi antenna of multipath decay, is including bracing piece (1) and connect reflector (4) on bracing piece (1), wherein, reflector (4) including connect in first reflection component (41) on bracing piece (1), its characterized in that: the reflector (4) further comprises a second reflection assembly (42) for eliminating interference electromagnetic wave signals from a non-designated path, wherein the second reflection assembly (42) is folded or fixedly connected to one end of the first reflection assembly (41) far away from the supporting rod (1), and the second reflection assembly (42) is folded and connected with the first reflection assembly (41) through a preset folding assembly (5); the folding assembly (5) comprises a first folding piece (51) and a second folding piece (52), and the first folding piece (51) and the second folding piece (52) are respectively connected with the first reflecting assembly (41) and the second reflecting assembly (42); one side of the first folding piece (51) is hinged with one side of the second folding piece (52), and meanwhile, the other side of the first folding piece (51) is in interference fit with the other side of the second folding piece (52); the device also comprises a connecting bracket (6), wherein the connecting bracket (6) is sleeved and fixed on the supporting rod (1), and meanwhile, the connecting bracket (6) is formed with a plurality of mounting cylinders (61); the first reflecting component (41) and the second reflecting component (42) comprise a supporting circular tube (43), a plurality of reflecting tubes (44) and two reflecting tube fixing pieces (45), wherein the reflecting tubes (44) are sequentially arranged and connected on the supporting circular tube (43) in a penetrating manner, and the two reflecting tube fixing pieces (45) are respectively arranged at two ends of the reflecting tube (44) and are respectively provided with a plurality of mounting holes for embedding the end parts of the reflecting tubes (44) in a one-to-one correspondence manner; the first reflecting component (41) penetrates through the end part of the supporting circular tube (43) and is fixed in the mounting cylinder (61) of the connecting bracket (6) so as to be fixed on the supporting rod (1) through the connecting bracket (6).
2. A yagi antenna for reducing multipath fading as claimed in claim 1, wherein: the end surfaces of the first folding piece (51) and the second folding piece (52) which are close to each other are inclined surfaces (53) which are in mutual interference fit, wherein two connecting bulges (54) are arranged on the inner sides of the first folding piece (51) and the second folding piece (52); the two connecting protrusions (54) of the second folding piece (52) are clamped between the two connecting protrusions (54) of the first folding piece (51), and meanwhile, the connecting protrusions (54) on the first folding piece (51) and the second folding piece (52) are penetrated through a preset connecting shaft at the same time, so that the inner sides of the first folding piece (51) and the second folding piece (52) are hinged; a folding buckling hole (55) is formed in the inclined surface (53) of the first folding piece (51), and a folding buckling column (56) matched with the folding buckling hole (55) is formed in the inclined surface (53) of the second folding piece (52).
3. A yagi antenna for reducing multipath fading as claimed in claim 1, wherein: the device also comprises a U-shaped clamping seat (7), wherein the closed end of the clamping seat (7) is sleeved and fixed on a supporting circular tube (43) of the first reflecting component (41), and then when the second reflecting component (42) is folded onto the first reflecting component (41), the supporting circular tube (43) of the second reflecting component (42) is clamped into the opening end of the clamping seat (7); the open end of the clamping seat (7) is provided with an adjusting bolt (71) for adjusting the opening degree of the open end.
4. A yagi antenna for reducing multipath fading as claimed in claim 1, wherein: the device also comprises a vibrator assembly (3), wherein the vibrator assembly (3) comprises a vibrator box (31) fixed on the supporting rod (1), an excitation vibrator (32) and a circuit board (33); the oscillator box (31) is internally provided with a circuit accommodating cavity (311) for accommodating the circuit board (33) and an annular accommodating cavity (312) for accommodating the excitation oscillator (32), wherein the annular accommodating cavity (312) is identical to the excitation oscillator (32) in shape, and meanwhile, the annular accommodating cavity (312) is communicated with the circuit accommodating cavity (311).
5. A yagi antenna for reducing multipath fading as claimed in claim 4, wherein: the top surface of the vibrator box (31) is provided with a clamping groove (313) for clamping the head of a preset fixing bolt, so that the vibrator box is fixed on the supporting rod (1) through the fixing bolt.
6. A yagi antenna for reducing multipath fading as claimed in claim 4, wherein: the vibrator box (31) is composed of a surface cover (31 a) and a bottom cover (31 b), wherein the inner wall of the surface cover (31 a) and the inner wall of the bottom cover (31 b) jointly form the annular accommodating cavity (312) and the circuit accommodating cavity (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267906.4A CN109301441B (en) | 2018-10-29 | 2018-10-29 | Yagi antenna capable of reducing multipath attenuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267906.4A CN109301441B (en) | 2018-10-29 | 2018-10-29 | Yagi antenna capable of reducing multipath attenuation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109301441A CN109301441A (en) | 2019-02-01 |
| CN109301441B true CN109301441B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811267906.4A Active CN109301441B (en) | 2018-10-29 | 2018-10-29 | Yagi antenna capable of reducing multipath attenuation |
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