CN110867648A - Antenna and radiating element thereof - Google Patents
Antenna and radiating element thereof Download PDFInfo
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- CN110867648A CN110867648A CN201911202307.9A CN201911202307A CN110867648A CN 110867648 A CN110867648 A CN 110867648A CN 201911202307 A CN201911202307 A CN 201911202307A CN 110867648 A CN110867648 A CN 110867648A
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- 230000005855 radiation Effects 0.000 claims abstract description 170
- 238000002955 isolation Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 238000003491 array Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention discloses an antenna and a radiation unit thereof, wherein the radiation unit comprises a radiation body, the radiation body comprises four radiation arms, an isolation groove is arranged between two adjacent radiation arms, the radiation arms comprise a first radiation body, a second radiation body and a third radiation body, the first radiation body is horizontally or approximately horizontally arranged, one side of the second radiation body is connected with the first radiation body, the second radiation body and the first radiation body are arranged in an included angle, one side of the third radiation body is connected with the other side of the second radiation body, and the third radiation body is arranged in an included angle relative to the second radiation body. The caliber of the radiation unit is small, so that the size of the antenna can be effectively reduced; therefore, the antenna adopting the radiation unit is small in size and convenient to install.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to an antenna and a radiation unit thereof.
Background
The rapid development of wireless communication technology puts higher demands on communication systems. The antenna is an essential important component in a communication system, and the quality of the comprehensive performance of the antenna directly affects the networking and communication quality of the communication system. Meanwhile, with the multi-frequency of the antenna, the size of the antenna also becomes larger. Due to the increasingly scarce sky resources and the continuously reduced space of the station site, the antenna is inconvenient to install.
Disclosure of Invention
Based on the antenna and the radiating unit thereof, the caliber of the radiating unit is small, and the size of the antenna can be effectively reduced; therefore, the antenna adopting the radiation unit is small in size and convenient to install.
The technical scheme is as follows:
in one aspect, a radiating element is provided, including the radiation body, the radiation body includes four radiation arms, adjacent two be equipped with isolated groove between the radiation arm, the radiation arm includes first irradiator, second irradiator and third irradiator, first irradiator level or approximate level set up, one side of second irradiator with first irradiator is connected, just the second irradiator with first irradiator is the contained angle setting, one side of third irradiator with the opposite side of second irradiator is connected, just the third irradiator is relative the second irradiator is the contained angle setting.
When the radiation unit is applied to an antenna, the feed component is utilized to feed the radiation arm of the radiation body, so that the radiation arm is utilized to transmit corresponding signals. Because in every radiation arm, first irradiator level or approximate level set up, and the second irradiator is the contained angle setting with first radiation arm, and the third irradiator is the contained angle setting with the second radiation arm to make the projection area of radiation body on the reflecting plate less, radiating element's bore is less promptly, thereby can effectively reduce the size of antenna, make the installation of antenna can not receive the restraint of station site space's size, the installation of being convenient for.
The technical solution is further explained below:
in one embodiment, the radiating arm further includes a fourth radiator, the fourth radiator is connected to the other side of the third radiator, and the fourth radiator is disposed at an included angle with respect to the third radiator.
In one embodiment, the fourth radiator is disposed perpendicular to the first radiator, or the fourth radiator is disposed obliquely with respect to the first radiator toward an outer side of the first radiator.
In one embodiment, the radiating unit further includes a first dielectric element, and at least one of the first radiator, the second radiator, the third radiator, or the fourth radiator is provided with the first dielectric element.
In one embodiment, the radiation unit further includes fixing members disposed at both sides of the isolation groove, for clamping two adjacent radiation arms.
In one embodiment, the second radiator is disposed perpendicular to the first radiator, or the second radiator is disposed obliquely with respect to the first radiator toward an outer side of the first radiator.
In one embodiment, the third radiator is disposed parallel or approximately parallel to the first radiator, or the third radiator is disposed obliquely to the first radiator toward an outer side of the first radiator.
In one embodiment, the radiating element further comprises a feeding component, and the feeding component is coupled with the radiating body for feeding.
In one embodiment, the feeding component includes a feeding tab, the feeding tab is disposed corresponding to the isolation slot, the feeding tab is configured to couple with two adjacent radiation arms for feeding, and the feeding tab is disposed corresponding to the first radiator, the second radiator, and the third radiator.
In one embodiment, the feed sheet includes a first branch section and a second branch section electrically connected to each other, the first branch section and the second branch section are disposed at an interval and form an interval slot, and a central axis of the interval slot coincides with or approximately coincides with a central axis of the isolation slot.
In one embodiment, the radiating unit further includes a second dielectric member, the second dielectric member is provided with a first side surface and a second side surface which are arranged at an interval, the first side surface is arranged to be attached to the back surface of the radiating arm, and the second side surface is provided with an installation portion for installing the feed tab.
In one embodiment, the feeding assembly further includes a base and a coaxial cable, the base is provided with a through hole for the coaxial cable to pass through, the base is electrically connected to the first radiator, and an inner core of the coaxial cable is electrically connected to the feeding tab.
On the other hand, the antenna comprises a reflecting plate and the radiation unit, wherein the radiation unit is arranged on the reflecting plate.
Above-mentioned antenna utilizes feed subassembly to feed the radiation arm of radiation body to utilize the radiation arm to go out corresponding signal transmission. Because in every radiation arm, first irradiator level or approximate level set up, and the second irradiator is the contained angle setting with first radiation arm, and the third irradiator is the contained angle setting with the second radiation arm to make the projection area of radiation body on the reflecting plate less, radiating element's bore is less promptly, thereby can effectively reduce the size of antenna, make the installation of antenna can not receive the restraint of station site space's size, the installation of being convenient for.
In one embodiment, the number of the radiation units is at least two, the antenna further comprises at least two high-frequency radiation units, the at least two low-frequency radiation units and the at least two high-frequency radiation units are arranged on the reflecting plate in a row, and in the at least one row, one high-frequency radiation unit is arranged between two adjacent low-frequency radiation units.
Drawings
Fig. 1 is a schematic structural diagram of a radiation unit of an antenna according to an embodiment;
fig. 2 is a schematic structural diagram of a radiating element of the antenna of fig. 1 from another view angle;
fig. 3 is an exploded view of the radiating element of the antenna of fig. 1;
fig. 4 is a schematic structural diagram of a radiating body of a radiating element of the antenna of fig. 1;
fig. 5 is a schematic structural view of a second dielectric member of a radiating element of the antenna of fig. 1;
fig. 6 is a schematic structural diagram of a feed tab of a radiating element of the antenna of fig. 1;
fig. 7 is a layout diagram of low frequency radiating elements and high frequency radiating elements of the antenna of one embodiment;
fig. 8 is a layout diagram of a low-frequency radiating element and a high-frequency radiating element of an antenna according to another embodiment.
Description of reference numerals:
10. the antenna comprises a radiation unit, 11, a low-frequency radiation unit, 20, a reflecting plate, 30, a high-frequency radiation unit, 100, a radiation body, 110, a radiation arm, 111, a first radiator, 112, a second radiator, 113, a third radiator, 114, a fourth radiator, 120, an isolation groove, 130, a first dielectric piece, 140, a fixing piece, 150, a feed piece, 151, a first branch node, 152, a second branch node, 153, a spacing groove, 154, a first section, 155, a second section, 156, a third section, 160, a second dielectric piece, 161, a first side surface, 162, a second side surface, 163, a clamping groove, 164, a fourth section, 165, a fifth section, 166, a sixth section, 170, a base, 171, a through hole, 1000 and an antenna.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first," "second," "third," and the like in the description herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
It will also be understood that when interpreting elements, although not explicitly described, the elements are to be interpreted as including a range of errors which are within the acceptable range of deviation of the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.
As shown in fig. 1 to 4, in one embodiment, a radiation unit 10 is provided, which includes a radiation body 100, the radiation body 100 includes four radiation arms 110, an isolation slot 120 is disposed between two adjacent radiation arms 110, the radiation arms 110 include a first radiator 111, a second radiator 112 and a third radiator 113, the first radiator 111 is disposed horizontally or approximately horizontally, one side of the second radiator 112 is connected to the first radiator 111, and the second radiator 112 is disposed at an angle to the first radiator 111 (as shown in fig. 4)Shown), one side of the third radiator 113 is connected to the other side of the second radiator 112, and the third radiator 113 is disposed at an included angle with respect to the second radiator 112.
When the radiation unit 10 of the above embodiment is applied to the antenna 1000, the feed component is used to feed the radiation arm 110 of the radiation body 100, so that the radiation arm 110 transmits a corresponding signal. In each radiation arm 110, the first radiator 111 is horizontally or approximately horizontally arranged, the second radiator 112 and the first radiation arm 110 form an included angle, and the third radiator 113 and the second radiation arm 110 form an included angle, so that the projection area of the radiation body 100 on the reflection plate is smaller, that is, the aperture of the radiation unit 10 is smaller, the size of the antenna 1000 can be effectively reduced, the installation of the antenna 1000 is not constrained by the size of the station space, and the installation is convenient.
It should be noted that one end of the isolation slot 120 is disposed on the first radiator 111, and the other end of the isolation slot 120 extends to the outermost side of the third radiator 113 (i.e., the side of the third radiator 113 far away from the second radiator 112). The first radiator 111 is disposed approximately horizontally in consideration of the influence of machining errors and assembly errors, and may be disposed horizontally within an error tolerance, for example, the first radiator 111 may be disposed horizontally when an angle between the first radiator 111 and a horizontal plane is 0 ° to 1 °. The four radiation arms 110 are enclosed to form the radiation body 100, the first radiator 111 is horizontally or approximately horizontally arranged, the second radiator 112 and the first radiation arm 110 form an included angle, and the third radiator 113 and the second radiation arm 110 form an included angle, so that the radiation body 100 is funnel-shaped, and the projection area of the radiation body 100 on the reflecting plate is reduced. The aperture of the radiation unit 10 can be reduced to 120mm or less (preferably 115mm or less), the aperture of the radiation unit 10 is set to 0.32 λ (λ is the wavelength of the central frequency point of the operating frequency band of the radiation unit 10 in the air), and compared with the conventional radiation unit 10 (the aperture is 140mm to 150mm, and the aperture is 0.38 λ to 0.45 λ), the aperture of the radiation unit 10 is reduced by at least 14.2%, when the antenna 1000 is used, the coupling between the high-frequency radiation unit 10 and the low-frequency radiation unit 10 can be reduced, so that the distance between adjacent arrays can be reduced, and the width of the antenna 1000 can be reduced (as shown in the a direction of fig. 7 and 8).
As shown in fig. 1 to 4, further, the radiation arm 110 further includes a fourth radiator 114. In this way, the radiation area of the radiation unit 10 is increased by the fourth radiator 114, so that the radiation performance of the radiation unit 10 is better. The fourth radiator 114 is connected to the other side of the third radiator 113, and the fourth radiator 114 forms an included angle with respect to the third radiator 113. In this way, the projection area of the radiation body 100 on the reflection plate can be reduced with the same radiation area, and the aperture of the radiation unit 10 is small. One end of the isolation slot 120 is disposed on the first radiator 111, and the other end of the isolation slot 120 extends to the outermost side of the fourth radiator 114 (i.e., the side of the fourth radiator 114 far away from the third radiator 113).
As shown in fig. 4, in one embodiment, the fourth radiator 114 is disposed perpendicular to the first radiator 111. In this way, the projection area of the fourth radiator 114 on the reflector is minimized, so that the projection area of the radiator 100 on the reflector is minimized, and the aperture of the radiator 100 can be reduced better.
As shown in fig. 4, of course, in other embodiments, the fourth radiator 114 may be disposed to be inclined toward the outer side of the first radiator 111 with respect to the first radiator 111, so that the projected area of the fourth radiator 114 on the reflective plate is smaller, thereby making the projected area of the radiation body 100 on the reflective plate smaller, and also reducing the aperture of the radiation body 100, wherein the outer side of the first radiator 111 refers to the outer side of the side where the first radiator 111 is connected with the second radiator 112, and the included angle between the fourth radiator 114 and the first radiator 111 is β, and 0 ° < β ≦ 90 °.
As shown in fig. 2 and 3, in one embodiment, the radiation unit 10 further includes a first dielectric element 130, and at least one of the first radiator 111, the second radiator 112, the third radiator 113, or the fourth radiator 114 is provided with the first dielectric element 130. In this way, the first dielectric member 130 can increase the electrical size of the radiation unit 10, so that the aperture of the radiation body 100 can be further reduced while maintaining the radiation performance and other indexes. Here, the first dielectric member 130 may be disposed at least on one of a back surface or a front surface of the first radiator 111, a back surface or a front surface of the second radiator 112, a back surface or a front surface of the third radiator 113, and a back surface or a front surface of the fourth radiator 114. For example, one first dielectric element 130 may be disposed on each of the back surface of the first radiator 111, the back surface of the second radiator 112, the back surface of the third radiator 113, and the back surface of the fourth radiator 114, one first dielectric element 130 may be disposed on one of the back surface of the first radiator 111, the back surface of the second radiator 112, the back surface of the third radiator 113, and the back surface of the fourth radiator 114, and one first dielectric element 130 may be disposed on one of the front surface of the first radiator 111, the front surface of the second radiator 112, the front surface of the third radiator 113, and the front surface of the fourth radiator 114, which may be flexibly adjusted according to actual use requirements. The first dielectric member 130 may be a dielectric plate (substrate made of insulating material), which is easy to mount and may be fixed to the corresponding back surface in a clamping, riveting or bonding manner. The rear surface refers to a side surface facing the reflection plate.
When the third radiator 113 is parallel to the first radiator 111, it is preferable that the first dielectric member 130 is disposed on the back surface of the third radiator 113, so that the installation of other components is not interfered, the installation is facilitated, and the aperture of the radiation body 100 is not increased.
As shown in fig. 1 to 3, in one embodiment, the radiation unit 10 further includes a fixing member 140, and the fixing member 140 is disposed at two sides of the isolation slot 120 and is used for clamping two adjacent radiation arms 110. Thus, the fixing member 140 can ensure that the two adjacent radiation arms 110 are kept stable and the isolation groove 120 is not deformed, so that the spacing groove of the feed sheet can be accurately arranged corresponding to the isolation groove 120, which is beneficial to impedance matching and prevents the directional diagram from deviating. The fixing member 140 may clamp and position the two adjacent radiation arms 110 in a clamping manner (for example, clamp and position the two adjacent radiation arms 110 by using a clamping head), or may rivet and position the two adjacent radiation arms 110 in a riveting manner (for example, rivet and position the two adjacent radiation arms 110 by using a rivet), so that only the two adjacent radiation arms 110 are required to be stable, and the isolation groove 120 is not deformed. The clamping member may be disposed at any position in the length direction of the isolation slot 120, and is preferably disposed on the fourth radiator 114, so that the clamping member is disposed at an end away from the isolation slot 120, which can better prevent the isolation slot 120 from deforming.
In one embodiment, the second radiator 112 is disposed perpendicular to the first radiator 111. In this way, the projection area of the second radiator 112 on the reflector is the smallest, so that the projection area of the radiation body 100 on the reflector is the smallest, and the aperture of the radiation body 100 can be better reduced.
As shown in fig. 4, of course, in other embodiments, the second radiator 112 may be obliquely disposed toward the outer side of the first radiator 111 with respect to the first radiator 111. In this way, the projection area of the second radiator 112 on the reflector is smaller, so that the projection area of the radiation body 100 on the reflector is smaller, and the aperture of the radiation body 100 can also be reduced. Wherein, the included angle between the second radiator 112 and the first radiator 111 isAnd is
As shown in fig. 4, in one embodiment, the third radiator 113 is disposed parallel or approximately parallel to the first radiator 111. Thus, a sufficient distance is provided between the first radiator 111 and the third radiator 113 or the fourth radiator 114, so as to ensure the radiation performance of the radiation body 100.
Of course, in other embodiments, the third radiator 113 may be obliquely disposed toward the outer side of the first radiator 111 with respect to the first radiator 111. In this way, the projection area of the third radiator 113 on the reflector is small, so that the projection area of the radiation body 100 on the reflector is small, and the aperture of the radiation body 100 can also be reduced. The included angle between the third radiator 113 and the first radiator 111 is θ (not shown), and θ is greater than or equal to 0 ° and less than 90 °.
On the basis of any of the above embodiments, the radiating element 10 further includes a feeding component, and the feeding component is coupled with the radiating body 100 for feeding. In this way, the radiation arm 110 of the radiation body 100 is coupled and fed by the feeding component, so that a signal can be emitted through the radiation arm 110.
As shown in fig. 2, 3 and 6, in one embodiment, the feeding assembly includes a feeding tab 150, the feeding tab 150 is disposed corresponding to the isolation slot 120, and the feeding tab 150 is used for coupling with two adjacent radiating arms 110. Thus, by using the coupling feed of the feed plate 150 and the radiation arm 110, the radiation arm 110 can be manufactured by a sheet metal stamping method (for example, by stamping a sheet metal with a thickness of 1 mm) without electroplating, thereby reducing the production cost and the weight of the radiation body 100. The feeding sheet 150 is disposed corresponding to the first radiator 111, the second radiator 112, and the third radiator 113. Thus, one end of the feed tab 150 extends from the first radiator 111 to the third radiator 113, that is, along the length direction of the feed tab 150, the feed tab 150 corresponds to the first radiator 111, the second radiator 112 and the third radiator 113, so that the feed tab 150, the first radiator 111, the second radiator 112, the third radiator 113, the base and the coaxial cable can cooperate to form a balun feed structure; meanwhile, the first radiator 111, the second radiator 112 and the third radiator 113 can radiate and transmit corresponding signals. Moreover, the contour shape of the feed tab 150 matches the contour shape of the radiating arm 110, the feed tab 150 may be divided into a first segment 154, a second segment 155, and a third segment 156, the first segment 154 corresponds to the first radiator 111, the second segment 155 corresponds to the second radiator 112, the third segment 156 corresponds to the third radiator 113, the first segment 154 and the second segment 155 are also arranged at an included angle, and are matched with the included angle between the first radiator 111 and the second radiator 112, and the second segment 155 and the third segment 156 are also arranged at an included angle, and are matched with the included angle between the second radiator 112 and the third radiator 113.
As shown in fig. 6, the feeding tab 150 further includes a first branch segment 151 and a second branch segment 152 electrically connected to each other, the first branch segment 151 and the second branch segment 152 are disposed at an interval and form a spacing slot 153, and a central axis of the spacing slot 153 coincides with or approximately coincides with a central axis of the isolation slot 120. Thus, the spacing slot 153 of the feeding sheet 150 can be accurately arranged corresponding to the isolation slot 120, which is beneficial to impedance matching and prevents the directional diagram from deflecting. The central axis of the spacing groove 153 approximately coincides with the central axis of the isolation groove 120, considering the influence of machining error and assembly error, and may be considered to coincide within an error tolerance range, for example, when the distance between the central axis of the spacing groove 153 and the central axis of the isolation groove 120 is 0mm to 0.5mm, the central axis of the spacing groove 153 may be considered to coincide with the central axis of the isolation groove 120.
As shown in fig. 2, 3 and 5, in an embodiment, the radiating element 10 further includes a second dielectric member 160, the second dielectric member 160 has a first side surface 161 and a second side surface 162 that are disposed at an interval, the first side surface 161 is disposed to be attached to the back surface of the radiating arm 110, and the second side surface 162 is provided with a mounting portion for mounting the feeding tab 150. In this way, the mounting portion is used to stably fix the feeding plate 150 on the second side surface 162 of the second dielectric member 160, and the first side surface 161 of the second dielectric member 160 is attached to the back surface of the radiation arm 110 by clamping, riveting or bonding, so as to realize the assembly of the feeding plate 150 and the radiation body 100, and enable the feeding plate 150 and the radiation arm 110 of the radiation body 100 to be coupled for feeding. The installation of the feeding tab 150 by the installation portion can be realized by a clamping manner (for example, a clamping groove 163 is formed on the second side surface 162, and the feeding tab 150 is clamped in the clamping groove 163), or can be realized by a bonding manner (for example, a bonding layer is formed on the second side surface 162, and the feeding tab 150 is adhered to the second side surface 162), and only the requirement that the feeding tab 150 can be stably fixed on the second side surface 162 is satisfied. The second dielectric member 160 may be a dielectric plate (substrate of insulating material) for easy mounting. The back surface of the radiation arm 110 refers to a surface facing the reflection plate. Moreover, the outline shape of the second dielectric member 160 matches the outline shape of the feed tab 150, the feed tab 150 is divided into a first segment 154, a second segment 155 and a third segment 156, the second dielectric member 160 is divided into a fourth segment 164, a fifth segment 165 and a sixth segment 166, the fourth segment 164 corresponds to the first segment 154, the fifth segment 165 corresponds to the second segment 155, the sixth segment 166 corresponds to the third segment 156, the fourth segment 164 and the fifth segment 165 are also arranged at an included angle and match the included angle between the first segment 154 and the second segment 155, and the fifth segment 165 and the sixth segment 166 are also arranged at an included angle and match the included angle between the second segment 155 and the third segment 156.
As shown in fig. 2 and 3, in one embodiment, the feeding assembly further includes a base 170 and a coaxial cable (not shown), the base 170 is provided with a through hole 171 for the coaxial cable to pass through, the base 170 is electrically connected to the first radiator 111, and the inner core of the coaxial cable is electrically connected to the feeding tab 150. In this way, the radiation body 100 is supported by the base 170, so that the radiation body 100 is mounted on the reflection plate. The base 170 may be made of metal materials such as aluminum, and may be set to be cylindrical or bar-shaped, one end of the base 170 and the first radiator 111 are electrically connected by riveting, locking screws, and the other end of the base 170 may be fixed to the reflection plate by plugging, clamping, locking screws, and the like. After the coaxial cable passes through the through hole 171, the inner core of the coaxial cable is electrically connected with the feeding sheet 150 by welding and the like.
As shown in fig. 7 and 8, in an embodiment, there is further provided an antenna 1000, including a reflection plate 20 and the radiation unit 10 of any of the above embodiments, where the radiation unit 10 is disposed on the reflection plate 20.
The antenna 1000 of the above embodiment feeds the radiation arm 110 of the radiation body 100 by using the feeding component, so that the radiation arm 110 transmits a corresponding signal. In each radiation arm 110, the first radiator 111 is horizontally or approximately horizontally arranged, the second radiator 112 is arranged at an included angle with the first radiation arm 110, and the third radiator 113 is arranged at an included angle with the second radiation arm 110, so that the projection area of the radiation body 100 on the reflection plate 20 is smaller, that is, the aperture of the radiation unit 10 is smaller, the size of the antenna 1000 can be effectively reduced, the installation of the antenna 1000 is not constrained by the size of the station space, and the installation is convenient.
As shown in fig. 7 and 8, in one embodiment, the radiation units 10 are at least two low-frequency radiation units 11, the antenna 1000 further includes at least two high-frequency radiation units 30, at least two low-frequency radiation units 11 and at least two high-frequency radiation units 30 are arranged on the reflection plate 20 in a row, and one high-frequency radiation unit 30 is arranged between two adjacent low-frequency radiation units 11 in at least one row. In this way, the coupling between the high-frequency radiation unit 30 and the low-frequency radiation unit 11 can be reduced, so that the distance between adjacent columns can be significantly reduced, the width of the antenna 1000 can be reduced, and the weight of the antenna 1000 can be reduced.
As shown in fig. 7, in one embodiment, the number of the high-frequency radiating elements 30 on the reflector 20 is twenty two, and the number of the low-frequency radiating elements 11 is five, wherein nine high-frequency radiating elements 30 are arranged at intervals in a first column, another nine high-frequency radiating elements 30 are arranged at intervals in a second column, the remaining four high-frequency radiating elements 30 and five low-frequency radiating elements 11 are arranged at intervals in a third column, the third column is arranged between the first column and the second column, and one high-frequency radiating element 30 is arranged between two adjacent low-frequency radiating elements 11 in the third column. So that the size of the antenna 1000 in the width direction can be reduced. In the lateral direction and the longitudinal direction, it is preferable that the high-frequency radiation units 30 and the low-frequency radiation units 11 are disposed in one-to-one correspondence.
As shown in fig. 8, in one embodiment, the number of the high-frequency radiation units 30 on the reflection plate 20 is twenty-six, the number of the low-frequency radiation units 11 is ten, nine high-frequency radiation units 30 are arranged at intervals in a fourth column, nine high-frequency radiation units 30 are arranged at intervals in a fifth column, four high-frequency radiation units 30 and five low-frequency radiation units 11 are arranged at intervals in a sixth column, four high-frequency radiation units 30 and five low-frequency radiation units 11 are arranged at intervals in a seventh column, the fourth column and the fifth column are arranged between the sixth column and the seventh column, and one high-frequency radiation unit 30 is arranged between two adjacent low-frequency radiation units 11 in the sixth column and the seventh column. So that the size of the antenna 1000 in the width direction can be reduced. In the lateral direction and the longitudinal direction, it is preferable that the high-frequency radiation units 30 and the low-frequency radiation units 11 are disposed in one-to-one correspondence.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be 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 (14)
1. The utility model provides a radiating element, its characterized in that, includes the radiation body, the radiation body includes four radiation arms, adjacent two be equipped with isolated groove between the radiation arm, the radiation arm includes first irradiator, second irradiator and third irradiator, first irradiator level or approximate level set up, one side of second irradiator with first irradiator is connected, just the second irradiator with first irradiator is the contained angle setting, one side of third irradiator with the opposite side of second irradiator is connected, just the third irradiator is relative the second irradiator is the contained angle setting.
2. The radiating element of claim 1, wherein the radiating arm further comprises a fourth radiator, the fourth radiator is connected to another side of the third radiator, and the fourth radiator is disposed at an angle with respect to the third radiator.
3. The radiating element according to claim 2, characterized in that the fourth radiator is arranged perpendicular to the first radiator or inclined towards the outside of the first radiator with respect to the first radiator.
4. The radiating element of claim 2, further comprising a first dielectric element, wherein at least one of the first radiator, the second radiator, the third radiator, or the fourth radiator is provided with the first dielectric element.
5. The radiating element of claim 2, further comprising a fixing member disposed on both sides of the isolation slot for clamping two adjacent radiating arms.
6. The radiating element of claim 1, wherein the second radiator is disposed perpendicular to the first radiator, or wherein the second radiator is disposed obliquely with respect to the first radiator toward an outer side of the first radiator.
7. The radiating element according to claim 1, characterized in that the third radiator is arranged parallel or approximately parallel to the first radiator, or the third radiator is arranged obliquely with respect to the first radiator towards the outside of the first radiator.
8. The radiating element of any one of claims 1 to 7, further comprising a feeding component coupled to the radiating body for feeding.
9. The radiating element of claim 8, wherein the feeding component includes a feeding tab, the feeding tab is disposed corresponding to the isolation slot, the feeding tab is configured to couple with two adjacent radiating arms for feeding, and the feeding tab is disposed corresponding to the first radiator, the second radiator, and the third radiator.
10. The radiating element of claim 9, wherein the feeding sheet comprises a first branch section and a second branch section electrically connected to each other, the first branch section and the second branch section are disposed at an interval and form a spacing slot, and a central axis of the spacing slot coincides or approximately coincides with a central axis of the isolation slot.
11. The radiating element according to claim 9, further comprising a second dielectric member, wherein the second dielectric member has a first side surface and a second side surface that are disposed at an interval, the first side surface is disposed to be attached to the back surface of the radiating arm, and the second side surface is provided with an installation portion for installing the feeding tab.
12. The radiating element of claim 9, wherein the feed assembly further comprises a base and a coaxial cable, the base is provided with a through hole for the coaxial cable to pass through, the base is electrically connected to the first radiator, and an inner core of the coaxial cable is electrically connected to the feed tab.
13. An antenna comprising a reflector plate and the radiating element of any one of claims 1 to 12, wherein the radiating element is disposed on the reflector plate.
14. The antenna of claim 13, wherein the radiating elements are at least two low frequency radiating elements, and further comprising at least two high frequency radiating elements, at least two low frequency radiating elements and at least two high frequency radiating elements are arranged on the reflector plate in a row, and one high frequency radiating element is arranged between two adjacent low frequency radiating elements in at least one row.
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CN111641039A (en) * | 2020-05-29 | 2020-09-08 | 广东曼克维通信科技有限公司 | Patch antenna, radiation unit and feed structure |
WO2021184967A1 (en) * | 2020-03-20 | 2021-09-23 | 摩比天线技术(深圳)有限公司 | Multi-frequency ultra-wideband oscillator and antenna |
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