CN210866481U - Broadband antenna with symmetrical opening angle - Google Patents
Broadband antenna with symmetrical opening angle Download PDFInfo
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- CN210866481U CN210866481U CN201922036456.4U CN201922036456U CN210866481U CN 210866481 U CN210866481 U CN 210866481U CN 201922036456 U CN201922036456 U CN 201922036456U CN 210866481 U CN210866481 U CN 210866481U
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Abstract
The utility model discloses a broadband antenna with symmetrical opening angles, which comprises a radio frequency connector and a radiation plate, wherein the radio frequency connector is fixedly connected with the radiation plate; the broadband radiation opening angle curve groove comprises a contraction groove bottom, an opening groove opening, a first opening angle curve groove wall and a second opening angle curve groove wall which are opposite, the contraction groove bottom penetrates through the hole wall of the broadband impedance matching hole, the opening groove opening penetrates through one side face of the radiation plate, and the area of the opening groove opening is larger than that of the contraction groove bottom. Radio frequency signals of the broadband antenna with the symmetrical opening angle are transmitted to the radiation plate through the radio frequency connector, and approximate reflection-free radio frequency transmission in a broadband can be realized through tuning of the broadband impedance matching hole; then, the radio frequency signals are successively converted into space electromagnetic waves along the broadband radiation opening angle curve slot to radiate outwards, and the radiation effect of broadband and high gain can be achieved. And the structure and the manufacturing process are simple, the cost is low, and the application prospect is wide.
Description
Technical Field
The utility model relates to an antenna field especially relates to a symmetry opening angle broadband antenna.
Background
The requirements of the antenna used in the fields of broadband mobile communication, wireless radio frequency test, detection positioning and the like on miniaturization, broadband and high gain are increasingly improved, but the existing antenna has contradiction between miniaturization, broadband and high gain, and is difficult to meet three indexes simultaneously. Antennas for realizing broadband work in the current market are generally low-gain omnidirectional antennas; the antenna for realizing high-gain operation is generally a directional radiation antenna with a narrow frequency band, can only realize 10% -20% of relative operating bandwidth, and adopts complicated array antennas such as a microstrip array antenna, a dipole array antenna and the like, and the array antennas have complicated feed structures and large transmission loss. The horn antenna has certain advantages in directional radiation besides the array antenna, but the horn antenna can not realize frequency doubling work generally, and the preparation process is complex. In addition, the antenna is generally large in size, particularly large in size when the antenna works at a low frequency, and is not suitable for being applied to an environment with a compact structure, and the cost of large-scale application is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a symmetry opening angle broadband antenna reaches the demand of antenna miniaturization, broadband and high gain.
To achieve the purpose, the utility model adopts the following technical proposal:
a broadband antenna with a symmetrical opening angle comprises a radio frequency connector and a radiation plate, wherein the radio frequency connector is fixedly connected with the radiation plate;
the broadband radiation opening angle curve groove comprises a contraction groove bottom, an opening groove opening, a first opening angle curve groove wall and a second opening angle curve groove wall which are opposite, the contraction groove bottom is communicated with the hole wall of the broadband impedance matching hole, the opening groove opening is communicated with one side surface of the radiation plate, and the area of the opening groove opening is larger than that of the contraction groove bottom.
Optionally, the radio frequency connector includes an outer conductor, a medium is fixedly sleeved in the outer conductor, and a probe is fixedly sleeved in the medium;
a medium hole penetrating through one side surface of the radiation plate is formed in the first tensile angle curve groove wall, the outer conductor is fixedly arranged on the side surface of the radiation plate provided with the medium hole, and one end, far away from the outer conductor, of the medium extends out of the inner part of the outer conductor to the medium hole; and one end of the probe, which is far away from the outer conductor, extends out of the medium into the broadband radiation field angle curve groove and is fixedly connected with the wall of the second field angle curve groove.
Optionally, a probe slot is formed in the wall of the second opening angle curve slot; and one end of the probe, which is far away from the outer conductor, extends out of the medium into the probe slot and is fixedly connected with the probe slot.
Optionally, the radiation plate includes a radiation substrate, and the opening notch penetrates through one side surface of the radiation substrate; the radiation substrate is protruded to form a radiation convex plate in the middle of the side surface deviating from the opening notch; the broadband impedance matching hole is formed in the radiation convex plate, and the broadband radiation opening angle curve groove extends from the radiation convex plate to the radiation substrate; the outer conductor is arranged on one side face of the radiation convex plate, and the medium hole penetrates from the first vertex curve groove wall to the side face of the radiation convex plate.
Optionally, the radiation plate includes two opposite faces and any one of a plurality of sides that the face is all perpendicular, broadband impedance matching hole link up two opposite faces of radiation plate, broadband radiation field angle curve groove link up two opposite faces of radiation plate.
Optionally, the broadband antenna with symmetrical opening angles further comprises a protection plate frame, and the radiation plate is fixedly connected with the protection plate frame.
Optionally, the broadband antenna with the symmetrical opening angle further comprises a guard plate frame, the radiation plate is fixedly connected with the guard plate frame and comprises two vertical guard plates, and the two vertical guard plates are fixedly connected with two opposite side surfaces of the radiation substrate;
the protection plate frame further comprises two transverse protection plates, and two sides of each transverse protection plate are fixedly connected with the two vertical protection plates respectively; the radiating substrate is located between the two lateral shields.
Optionally, a convex plate connecting hole is further formed on the side surface of the radiation convex plate provided with the medium hole; the outer conductor comprises an outer conductor cylinder and an outer conductor seat arranged around the outer conductor cylinder, and the medium is sleeved in the outer conductor cylinder; the outer conductor seat is provided with an outer conductor connecting hole corresponding to the convex plate connecting hole, a bolt is arranged in the outer conductor connecting hole, and the bolt is in threaded connection with the convex plate connecting hole.
Optionally, the radiation substrate and the radiation convex plate are of an integrally formed structure.
Optionally, the radiation plate is a copper gold-plated radiation plate.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a broadband antenna with symmetrical opening angle, which is characterized in that a broadband impedance matching hole and a broadband radiation opening angle curve groove are arranged on a radiation plate, radio frequency signals are transmitted to the radiation plate by a radio frequency connector, and approximate reflection-free radio frequency transmission in a broadband can be realized by tuning the broadband impedance matching hole; then, the radio frequency signals are successively converted into space electromagnetic waves along the broadband radiation opening angle curve slot to radiate outwards, and the radiation effect of broadband and high gain can be achieved. And the structure and the manufacturing process are simple, the cost is low, and the application prospect in the wireless communication fields of 4G, 5G, millimeter wave, ultra wide band and the like is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
Fig. 1 is a schematic structural diagram of a broadband antenna with a symmetric opening angle according to an embodiment of the present invention.
Fig. 2 is another schematic structural diagram of a broadband antenna with a symmetric opening angle according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a radio frequency connector according to an embodiment of the present invention.
Fig. 4 is a design result of the standing-wave ratio of the broadband antenna with symmetric opening angles according to an embodiment of the present invention.
Fig. 5 is a design result of radiation gain of the broadband antenna with symmetric opening angle according to an embodiment of the present invention.
Illustration of the drawings: 1. a radiation plate; 101. a radiation substrate; 102. a radiation convex plate; 11. a broadband impedance matching aperture; 12. broadband radiation opening angle curve slot; 121. a first angular curve slot wall; 122. the wall of the second opening angle curve groove; 123. shrinking the bottom of the tank; 124. opening the notch; 13. a probe slot; 14. a media aperture; 2. a radio frequency connector; 21. an outer conductor; 22. a medium; 23. a probe; 3. a plate protecting frame; 31. a vertical guard plate; 32. and (4) transverse guard plates.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment of the utility model provides a symmetry opening angle broadband antenna, including radio frequency connector 2 and radiating plate 1, 2 fixed connection radiating plates 1 of radio frequency connector. The radiation plate 1 is provided with a broadband impedance matching hole 11 and a broadband radiation opening angle curve groove 12, the broadband radiation opening angle curve groove 12 comprises a contraction groove bottom 123, an opening groove opening 124, a first opening angle curve groove wall 121 and a second opening angle curve groove wall 122 which are opposite, the contraction groove bottom 123 penetrates through the hole wall of the broadband impedance matching hole 11, the opening groove opening 124 penetrates through one side surface of the radiation plate 1, and the area of the opening groove opening 124 is larger than that of the contraction groove bottom 123.
In the broadband antenna with the symmetrical opening angle provided by the utility model, the radio frequency signal is transmitted to the radiation plate 1 by the radio frequency connector 2, and the approximate reflection-free radio frequency transmission in a broadband can be realized by tuning the broadband impedance matching hole 11; then, the radio frequency signals are successively converted into space electromagnetic waves along the broadband radiation opening angle curve slot 12 to radiate outwards, and the radiation effect of broadband and high gain can be realized.
The embodiment of the utility model provides a broadband radiation field angle curve groove 12, the shape design of field angle curve can adopt special curvilinear equation like exponential gradual change curve, chebyshev gradual change curve, taylor distribution curve etc. according to the electrical property demand selection different curvilinear equation of antenna difference. The curve design has close relation with the electrical performance parameters of the antenna, such as the working frequency, the working bandwidth, the radiation gain, the standing-wave ratio and the like, and stable electrical performance parameters can be obtained by adjusting a curve equation. When the radiation curve is adjusted according to the radiation gain requirement, the whole volume of the antenna can be changed. In the embodiment of the present invention, the flare angle curve is specifically an exponential gradient curve, where y ═ exp (x × a) -b, where a and b are designed constant values.
Specifically, the radiation plate 1 includes two opposite plate surfaces and a plurality of side surfaces perpendicular to any one of the plate surfaces, the broadband impedance matching hole 11 penetrates through the two opposite plate surfaces of the radiation plate 1, and the broadband radiation field angle curve groove 12 penetrates through the two opposite plate surfaces of the radiation plate 1. The area of the open notch 124 is equal to the area of the side of the radiation plate 1 through which it passes.
In the embodiment of the present invention, the rf connector 2 includes an outer conductor 21, a medium 22 is fixedly sleeved in the outer conductor 21, and a probe 23 is fixedly sleeved in the medium 22. The first slot wall 121 is provided with a dielectric hole 14 penetrating through one side surface of the radiation plate 1, the outer conductor 21 is fixed on the side surface of the radiation plate 1 provided with the dielectric hole 14, and one end of the dielectric 22 away from the outer conductor 21 extends out of the outer conductor 21 into the dielectric hole 14. Specifically, the medium 22 may further protrude from the medium hole 14 into the broadband radiation opening angle curve slot 12 according to design requirements, and the length of the medium 22 in the broadband radiation opening angle curve slot 12 may have an influence on the impedance of the antenna, so that the impedance matching may be adjusted based on the influence.
The end of the probe 23 away from the outer conductor 21 extends from the medium 22 into the broadband radiation angular curve slot 12 and is fixedly connected with the second angular curve slot wall 122. Specifically, the second flared curved slot wall 122 is provided with a probe slot 13, and one end of the probe 23 away from the outer conductor 21 extends from the medium 22 into the probe slot 13 and is fixedly connected to the probe slot 13. The probe 23 needs to be connected with the probe groove 13 to form electrical conduction, but in order to make the probe 23 stretch into the probe groove 13 to complete the assembly, the size of the probe groove 13 needs to be larger than that of the probe 23, therefore the utility model discloses specifically be through soldering tin with the probe 23 and the welding realization electrical conduction of the probe groove 13.
In the embodiment of the present invention, the rf connector 2 is a 50 Ω coaxial rf connector. In the radio frequency connector 2, the outer conductor 21 and the probe 23 are both conductors, the outer conductor 21 is fixed on one side of the radiation plate 1 to form an electrical connection, and the probe 23 is welded on the second angular groove wall 122 to form an electrical connection with the other side of the radiation plate 1, so that a balanced feed structure is formed between the radio frequency connector 2 and the radiation plate 1. The utility model discloses well formation feed structure need not the impedance transition structure or the power distribution network that adopt among other antennas of the same kind, simple structure.
Further, in the embodiment of the present invention, by adjusting the insertion position of the probe 23 and the length of the portion of the probe extending out of the medium 22, the position and size of the broadband impedance matching hole 11, and the length of the portion of the medium 22 extending out of the outer conductor 21, the characteristic impedance and the operating bandwidth of the antenna can be controlled. Therefore, the utility model discloses a feed structure still has the function that impedance is adjustable. The insertion position of the probe 23 and the position of the broadband impedance matching hole 11 are linked, and the probe 23 is disposed beside the broadband impedance matching hole 11.
The radiation plate 1 includes a radiation substrate 101, and a flared notch 124 penetrates one side surface of the radiation substrate 101. The radiating substrate 101 protrudes to form a radiating convex plate 102 in the middle of the side facing away from the open notch 124. The broadband impedance matching hole 11 is opened on the radiation convex plate 102, and the broadband radiation opening angle curve groove 12 extends from the radiation convex plate 102 to the radiation substrate 101. The outer conductor 21 is disposed on one side surface of the radiation convex plate 102, and the dielectric hole 14 penetrates from the first slot wall 121 to the side surface of the radiation convex plate 102.
The side of the radiation convex plate 102 provided with the medium holes 14 is also provided with a convex plate connecting hole. The outer conductor 21 includes an outer conductor cylinder and an outer conductor seat disposed around the outer conductor cylinder, and the medium 22 is sleeved in the outer conductor cylinder. An outer conductor connecting hole corresponding to the convex plate connecting hole is formed in the outer conductor seat, a bolt is arranged in the outer conductor connecting hole, and the bolt is in threaded connection with the convex plate connecting hole.
The embodiment of the utility model provides a radio frequency connector 2, outer conductor 21 pass through bolt and radiation flange 102 fixed connection, and probe 23 welds on second field angle curve cell wall 122, and feed simple structure and installation uniformity are high to make impedance match, radiation efficiency electrical performance parameter's uniformity height such as. Other feeding modes such as microstrip line feeding, coupling feeding and the like are greatly influenced by the outside and have poor consistency. The utility model discloses have obvious advantage in this respect.
The radiation convex plate 102 and the radiation substrate 101 are integrally formed, and particularly, the whole radiation plate 1 is integrally formed by adopting a copper-plated gold material, so that the radiation convex plate has good conductivity, small high-frequency current loss, high processing consistency, low radiation body loss and high radiation efficiency particularly in a millimeter wave frequency band.
The embodiment of the utility model provides an in, symmetry flare angle broadband antenna still includes protection grillage 3, 1 fixed connection protection grillage 3 of radiating plate. The guard plate frame 3 includes two vertical guard plates 31, and the two vertical guard plates 31 are fixedly connected to two opposite sides of the radiation substrate 101. The guard plate frame 3 further comprises two transverse guard plates 32, and two vertical guard plates 31 are fixedly connected to two sides of each transverse guard plate 32 respectively. The radiation substrate 101 is located between two lateral shields 32.
Radiation substrate connecting holes are formed in two opposite side faces of the radiation substrate 101, and vertical guard plates 31 are provided with first vertical guard plate connecting holes corresponding to the radiation substrate connecting holes. The metal bolt passes through the first connecting hole of vertical backplate, and threaded connection radiates the base plate connecting hole.
Similarly, each transverse guard plate 32 is provided with a transverse guard plate connecting hole, and each vertical guard plate 31 is provided with a vertical guard plate second connecting hole corresponding to the transverse guard plate 32 connecting hole. The metal bolt penetrates through the second connecting hole of the vertical guard plate and is in threaded connection with the connecting hole of the transverse guard plate.
The protection plate frame 3 is made of metal materials, so that the structural strength of the radiation plate 1 can be enhanced, and the radiation plate 1 and the radio frequency connector 2 are protected from being abraded by foreign objects in the antenna using process, so that the deterioration of the electrical performance is caused. In the aspect of electrical performance, the vertical guard plate 31 is perpendicular to the radiation plate 1, that is, perpendicular to the plane where the broadband radiation field angle curve slot 12 is located, that is, perpendicular to the direction of electric field vibration, which is beneficial to reducing the diffusion of electromagnetic waves in the horizontal direction, and improving the directivity of antenna aperture surface radiation, thereby improving the gain.
The utility model discloses a protection grillage is aluminum product machining spare part, fastens radio frequency connector 2, radiation plate 1 and protection grillage 3 as an organic whole through the bolt. The use is dismantled and is maintained conveniently, and volume and weight all possess very big advantage.
The utility model discloses the working method of antenna as follows:
the external circuit is connected through the radio frequency connector 2. The radio frequency connector 2 feeds power to the antenna through the outer conductor 21 and the probe 23, broadband electromagnetic wave feed-in is obtained through tuning of the broadband impedance matching hole 11, the electromagnetic wave passes through the broadband radiation opening angle curve groove 12, the electromagnetic wave with different frequencies is radiated outwards smoothly in sequence, and an antenna radiation effect is generated.
The standard radio frequency 50 ohm impedance interface is arranged outside the radio frequency connector 2 with the standard 50 ohm impedance, an impedance transformation unit is not needed, and the structure is simple. The design of the field angle curve also plays a role of slow transformation from 50 ohms to space impedance, thereby greatly widening the standing wave bandwidth and the radiation bandwidth of the antenna. By changing the radiation curve, the broadband high-gain radiation antenna with the relative bandwidth exceeding 60% from decimetric waves to any central frequency of millimeter waves can be obtained.
Fig. 4 shows the standing wave ratio design result of the broadband antenna with symmetric opening angle provided by the present invention, and it can be seen from the figure that the standing wave of the broadband antenna with symmetric opening angle is less than 2 at 5 GHz-15 GHz, and the relative bandwidth is 66.7%. Fig. 5 shows the radiation gain design result of the broadband antenna with symmetric opening angle provided by the present invention, and as can be seen from the figure, the maximum radiation directional gain of the broadband antenna with symmetric opening angle is greater than 10 dBi.
To sum up, the utility model has the following advantages:
1. broadband: through the design of the broadband impedance matching hole 11 and the broadband radiation field angle curve slot 12, the standing wave working bandwidth reaches more than 60%, while the traditional antenna is difficult to realize more than 50% of working bandwidth.
2. High gain: through the broadband radiation field angle curve slot 12 made of metal, the directional radiation gain reaches 10dBi, while the radiation gain of the traditional antenna is generally below 4dBi, and a complex array antenna needs to be designed if the gain needs to be improved.
3. The feed structure is simple: the outer conductor 21 of the radio frequency connector 2 is fixed by bolts, and the probe 23 is fixed by welding without other impedance transition structures or power distribution networks.
4. The manufacturing process is simple: the radiation plate 1 is integrally formed, and the radiation plate 1, the radio frequency connector 2 and the guard plate frame 3 are spliced by bolts, so that the machining precision can be guaranteed, the installation is simple and reliable, the consistency is good, and the disassembly, the maintenance and the debugging are convenient.
5. The volume is small: under the same gain condition, the volume of the antenna is about 60 percent of that of the traditional antenna. The radiation curve can be adjusted according to the radiation gain requirement, and the effects of reducing and amplifying the volume are achieved. The adoption of the copper gold-plated radiator has low radiator loss and high radiation efficiency especially in a millimeter wave frequency band.
The utility model discloses carry out the design innovation to miniaturized and broadband, high-gain contradiction, through matching feed structure, radiation opening angle curve (like exponential equation curve, logarithmic equation curve), reinforcing radiation protection board etc. reach the electrical performance effect that broadband impedance matches, broadband spoke and high-gain directional radiation. Simultaneously the utility model provides a symmetry flare angle broadband antenna still has advantages such as simplifying feed structure, antenna miniaturization, high strength, assembly process are simple and easy. The symmetrical opening angle broadband antenna has the advantages of good electrical property, relatively low cost, simple and reliable process compared with the traditional antenna, good market application prospect and wide application in the fields of wireless communication such as 4G, 5G, millimeter wave, ultra wide band and the like.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A broadband antenna with a symmetrical opening angle is characterized by comprising a radio frequency connector and a radiation plate, wherein the radio frequency connector is fixedly connected with the radiation plate;
the broadband radiation opening angle curve groove comprises a contraction groove bottom, an opening groove opening, a first opening angle curve groove wall and a second opening angle curve groove wall which are opposite, the contraction groove bottom is communicated with the hole wall of the broadband impedance matching hole, the opening groove opening is communicated with one side surface of the radiation plate, and the area of the opening groove opening is larger than that of the contraction groove bottom.
2. The broadband antenna with a symmetrical opening angle as claimed in claim 1, wherein the radio frequency connector comprises an outer conductor, a medium is fixedly sleeved in the outer conductor, and a probe is fixedly sleeved in the medium;
a medium hole penetrating through one side surface of the radiation plate is formed in the first tensile angle curve groove wall, the outer conductor is fixedly arranged on the side surface of the radiation plate provided with the medium hole, and one end, far away from the outer conductor, of the medium extends out of the inner part of the outer conductor to the medium hole; and one end of the probe, which is far away from the outer conductor, extends out of the medium into the broadband radiation field angle curve groove and is fixedly connected with the wall of the second field angle curve groove, and the probe is positioned beside the broadband impedance matching hole.
3. The broadband antenna with symmetrical opening angles as claimed in claim 2, wherein the wall of the second opening angle curve slot is provided with a probe slot; and one end of the probe, which is far away from the outer conductor, extends out of the medium into the probe slot and is fixedly connected with the probe slot.
4. The symmetric opening-angle broadband antenna according to claim 2, wherein the radiating plate comprises a radiating substrate, and the opening notch penetrates through one side face of the radiating substrate; the radiation substrate is protruded to form a radiation convex plate in the middle of the side surface deviating from the opening notch; the broadband impedance matching hole is formed in the radiation convex plate, and the broadband radiation opening angle curve groove extends from the radiation convex plate to the radiation substrate; the outer conductor is arranged on one side face of the radiation convex plate, and the medium hole penetrates from the first vertex curve groove wall to the side face of the radiation convex plate.
5. The symmetric opening-angle broadband antenna according to claim 1, wherein the radiating plate comprises two opposite plate surfaces and a plurality of side surfaces perpendicular to any one of the plate surfaces, the broadband impedance matching hole penetrates through the two opposite plate surfaces of the radiating plate, and the broadband radiating opening-angle curved slot penetrates through the two opposite plate surfaces of the radiating plate.
6. The broadband antenna with the symmetrical opening angle of claim 4, further comprising a protection plate frame, wherein the radiation plate is fixedly connected with the protection plate frame.
7. The broadband antenna with the symmetrical opening angle of claim 6, further comprising a guard plate frame, wherein the radiation plate is fixedly connected with the guard plate frame and comprises two vertical guard plates, and the two vertical guard plates are fixedly connected with two opposite side surfaces of the radiation substrate;
the protection plate frame further comprises two transverse protection plates, and two sides of each transverse protection plate are fixedly connected with the two vertical protection plates respectively; the radiating substrate is located between the two lateral shields.
8. The broadband antenna with the symmetrical opening angle as claimed in claim 4, wherein a convex plate connecting hole is further formed on the side surface of the radiation convex plate provided with the medium hole; the outer conductor comprises an outer conductor cylinder and an outer conductor seat arranged around the outer conductor cylinder, and the medium is sleeved in the outer conductor cylinder; the outer conductor seat is provided with an outer conductor connecting hole corresponding to the convex plate connecting hole, a bolt is arranged in the outer conductor connecting hole, and the bolt is in threaded connection with the convex plate connecting hole.
9. The symmetric opening-angle broadband antenna of claim 4, wherein the radiating substrate and the radiating flange are of an integrally formed structure.
10. The symmetric opening-angle broadband antenna of claim 1, wherein the radiating plate is a copper-plated radiating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922036456.4U CN210866481U (en) | 2019-11-22 | 2019-11-22 | Broadband antenna with symmetrical opening angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922036456.4U CN210866481U (en) | 2019-11-22 | 2019-11-22 | Broadband antenna with symmetrical opening angle |
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| Publication Number | Publication Date |
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| CN210866481U true CN210866481U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922036456.4U Active CN210866481U (en) | 2019-11-22 | 2019-11-22 | Broadband antenna with symmetrical opening angle |
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| CN (1) | CN210866481U (en) |
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