CN111478046B - Base station antenna and feed network device - Google Patents
Base station antenna and feed network device Download PDFInfo
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- CN111478046B CN111478046B CN202010431079.9A CN202010431079A CN111478046B CN 111478046 B CN111478046 B CN 111478046B CN 202010431079 A CN202010431079 A CN 202010431079A CN 111478046 B CN111478046 B CN 111478046B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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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
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
本发明公开了一种基站天线及馈电网络装置。该馈电网络装置包括第一基板、第一线路及跨接网络；第一线路设置于第一基板，且第一线路包括第一传输段及第二传输段，第二传输段与第一传输段间隔设置形成避让区；跨接网络包括与第一传输段电连接的第一导电部、与第二传输段电连接的第二导电部、以及设置于避让区上方的传输线，传输线分别第一导电部及第二导电部电连接。该馈电网络装置利用了该跨接网络进行电连接，使得线路或电气单元之间的布置更加灵活，能够减少耦合干扰,降低损耗。该基站天线采用了该馈电网络装置，能够在保证天线性能的情况下，适应多频段、小型化发展的需要。
The invention discloses a base station antenna and a feeding network device. The feeding network device includes a first substrate, a first circuit and a jumper network; the first circuit is arranged on the first substrate, and the first circuit includes a first transmission section and a second transmission section, the second transmission section and the first transmission section The sections are arranged at intervals to form an avoidance area; the jumper network includes a first conductive part electrically connected with the first transmission section, a second conductive part electrically connected with the second transmission section, and a transmission line arranged above the avoidance area, and the transmission lines are respectively the first The conductive portion and the second conductive portion are electrically connected. The feeder network device utilizes the jumper network for electrical connection, so that the arrangement between lines or electrical units is more flexible, coupling interference and loss can be reduced. The base station antenna adopts the feeding network device, which can meet the needs of multi-frequency band and miniaturization development under the condition of ensuring the performance of the antenna.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a base station antenna and a feed network device.
Background
Base station antennas are important components of wireless communication systems and play a significant role in communication networks. With the continuous innovation and progress of mobile communication technology, a fifth generation mobile communication technology (5G) is also actively being built. The fifth generation mobile communication technology has the characteristics of ultra-low time delay, high transmission rate, larger system capacity, more stability and the like, and meanwhile, in order to adapt to construction requirements, the base station antenna also needs to be developed towards the directions of multi-band, miniaturization and the like.
The base station antenna needs to meet both the multi-band requirement and the miniaturization development of the antenna, so that the circuits of the feed network are compactly arranged, energy loss among densely distributed circuits is easily caused, and the performance of the base station antenna is influenced.
Disclosure of Invention
In view of the above, it is desirable to provide a base station antenna and a feeding network device. The feed network device utilizes the cross-over network for electric connection, so that the arrangement of lines or electric units is more flexible, the coupling interference can be reduced, and the loss is reduced. The base station antenna adopts the feed network device, and can meet the requirements of multi-band and miniaturization development under the condition of ensuring the antenna performance.
The technical scheme is as follows:
in one aspect, the present application provides a feed network device, including a first substrate, a first line, and a crossover network; the first circuit is arranged on the first substrate and comprises a first transmission section and a second transmission section, and the second transmission section and the first transmission section are arranged at intervals to form an avoidance area; the cross-over network comprises a first conductive part electrically connected with the first transmission section, a second conductive part electrically connected with the second transmission section, and a transmission line arranged above the avoidance area, wherein the transmission line is respectively electrically connected with the first conductive part and the second conductive part.
The feed network device is characterized in that the first transmission section and the second transmission section of the first line are arranged at intervals to form an avoidance area, the transmission line of the cross-over network is utilized to realize the conduction of the first transmission section and the second transmission section, and then other lines or other electric elements can be arranged on the avoidance area, so that the coupling interference can be reduced, and the loss can be reduced. In addition, the position relation between the first transmission section and the second transmission section can be flexibly adjusted according to actual needs, so that the avoidance area can be set according to needs, and the arrangement between the internal circuit or the electric unit of the feed network is more flexible. The feed network device utilizes the cross-over network for electrical connection, so that the arrangement of lines or electrical units is more flexible, and the transmission lines and the lines on the first substrate are staggered in a three-dimensional space, so that the coupling interference can be reduced; meanwhile, the transmission line with the lengthened winding length caused by avoiding other lines can be shortened, and the loss is reduced.
The technical solution is further explained below:
in one embodiment, the first line is provided with one of a power dividing line, a filtering line and a combining line.
In one embodiment, the crossover network is a microstrip line board.
In one embodiment, the microstrip line board comprises a second substrate and a first ground layer arranged on the second substrate, the first ground layer and the transmission line are arranged on two sides of the second substrate at intervals and opposite to each other, and the first conductive part and the second conductive part are arranged on the second substrate; the first substrate comprises a front surface and a back surface opposite to the front surface, the first circuit is arranged on the front surface, the back surface is provided with a second grounding layer, and the second grounding layer is electrically connected with the first grounding layer.
In one embodiment, the second substrate further has a third conductive portion electrically connected to the first ground layer, the first conductive portion, the second conductive portion and the third conductive portion are disposed in an insulating manner, and the second ground layer is electrically connected to the first ground layer through the third conductive portion.
In one embodiment, the first conductive part and the second conductive part are arranged to protrude out of the second substrate and form a first connection structure; or/and at least two third conductive parts are arranged and protrude out of the second substrate to form a second connection structure.
In one embodiment, the transmission line is provided with at least two impedance branches arranged at intervals.
In one embodiment, the impedance branch comprises a first impedance body and a second impedance body, and the first impedance body and the second impedance body are oppositely arranged on two sides of the transmission line at an interval.
In one embodiment, the cross-over network further includes two third ground layers, the two third ground layers are disposed on two sides of the transmission line in an insulated manner, and the two third ground layers are electrically connected to the first ground layer.
In one embodiment, the second substrate includes at least two protruding insertion portions, and the at least two insertion portions cooperate to form the mounting structure.
In one embodiment, the feed network device further includes a phase shift network and a second line partially disposed in the avoidance region, the phase shift network includes a first phase shift circuit board and a second phase shift circuit board, the first line is electrically connected to the first phase shift circuit board through a second transmission section, and the second line is provided with a third transmission section electrically connected to the second phase shift circuit board.
In one embodiment, the first line and the second line are power dividing lines, the phase shifting network includes a cavity, the cavity includes a first shielding slot for accommodating the first phase shifting circuit board and a second shielding slot for accommodating the second phase shifting circuit board, the first substrate includes a fourth ground layer insulated from the first line and the second line, the fourth ground layer and the first shielding slot cooperate to form a first shielding cavity, and the fourth ground layer and the second shielding slot cooperate to form a second shielding cavity.
On the other hand, the present application further provides a base station antenna, including the feeding network device in any of the above embodiments.
The base station antenna adopts the feed network device, and the base station antenna adopts the feed network device, so that the requirements of multi-band and miniaturization development can be met under the condition of ensuring the antenna performance.
Drawings
FIG. 1 is a schematic diagram of a cross-over network in one embodiment;
FIG. 2 is an exploded view of the cross-over network of FIG. 1;
FIG. 3 is a schematic diagram of a cross-over network in one embodiment;
FIG. 4 is an exploded view of the cross-over network of FIG. 3;
fig. 5 is a schematic structural diagram of a feeding network device in an embodiment;
FIG. 6 is a schematic side view of a first substrate according to an embodiment;
fig. 7 is an exploded view of the structure of the electrical unit shown in fig. 5.
Description of reference numerals:
100. a cross-over network; 110. a transmission line; 112. an impedance stub; 102. a first resistor; 104. a second resistor; 120. a first ground plane; 130. a second substrate; 132. a plug-in part; 140. a first conductive portion; 150. a second conductive portion; 160. a third conductive portion; 170. a third ground plane; 200. a first substrate; 202. a front side; 204. a back side; 210. a first line; 212. a first transmission section; 214. a second transmission segment; 230. a second line; 232. a third transmission segment; 240. a fourth ground plane; 300. a phase shifting network; 310. a first phase shift circuit board; 320. a second phase shift circuit board; 330. a cavity; 332. a first shield groove; 334. a second shield groove; 340. a dielectric plate.
Brief description of the drawingsthe accompanying drawings, which form a part of this application, are included to provide a further understanding of the invention, and are included to explain illustrative embodiments of the invention and the description thereof and are not to be considered limiting of the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
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.
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 herein in the description of the invention 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 base station antenna comprises a radiation unit, a phase shifter for adjusting the downward inclination angle of the base station antenna, a feed network and a calibration network, wherein the radiation unit is electrically connected with the phase shifter through the feed network, so that the downward inclination angle of the base station antenna can be adjusted by moving a second substrate in the phase shifter.
At present, the number of radiating elements required by 4G or 5G base station antennas is more and more, so that transmission lines of a feed network are compactly arranged, energy loss among the densely distributed transmission lines is easily caused, and the performance of the base station antenna is affected. Therefore, a crossover network is needed, which can reduce coupling interference, reduce loss in the transmission process, and facilitate the optimal arrangement of the feed network.
As shown in fig. 1, fig. 2, fig. 5 and fig. 6, in an embodiment, a feeding network device is provided, which includes a first substrate 200, a first line 210 and a crossover network 100; the first circuit 210 is disposed on the first substrate 200, and the first circuit 210 includes a first transmission section 212 and a second transmission section 214, and the second transmission section 214 and the first transmission section 212 are disposed at an interval to form an avoidance region; the cross-over network 100 includes a first conductive portion 140 electrically connected to the first transmission segment 212, a second conductive portion 150 electrically connected to the second transmission segment 214, and a transmission line 110 disposed above the avoidance region, wherein the transmission line 110 is electrically connected to the first conductive portion 140 and the second conductive portion 150, respectively.
The feed network device arranges the first transmission section 212 and the second transmission section 214 of the first circuit 210 at intervals to form an avoidance area, the first transmission section 212 is electrically connected with the first conductive part 140, the second transmission section 214 is electrically connected with the second conductive part 150, and then the transmission line 110 of the crossover network 100 can be used for realizing the conduction of the first transmission section 212 and the second transmission section 214, so that other circuits or other electric elements can be arranged on the avoidance area, thereby reducing coupling interference and being beneficial to reducing loss. In addition, the position relationship between the first transmission section 212 and the second transmission section 214 can be flexibly adjusted according to actual needs, so that the avoidance area can be set according to needs, and further, the arrangement between internal circuits or electric units of the feed network is more flexible. The feed network device utilizes the crossover network 100 to perform electrical connection, so that the arrangement of lines or electrical units is more flexible, and the transmission line 110 and the lines on the first substrate 200 are staggered in a three-dimensional space, so that the coupling interference can be reduced; meanwhile, the transmission line 110 with a longer winding length caused by avoiding other lines can be shortened, and the loss is reduced.
Further, as shown in fig. 5 and 6, since other electric elements are provided on the plate surface of the first substrate 200, if a phase shifter is provided on the first substrate 200, the electric elements have a certain thickness. When the crossover network 100 is applied to the line electrical connection of the feeding network, the space in the thickness direction of the first substrate 200 can be fully utilized to optimize the line arrangement on the board surface, and the winding avoidance is reduced, so that the line of the feeding network and the first line 210 can be arranged more compactly. Specifically, by using the transmission line 110 connected across the network 100, the first line 210 can directly cross over other lines by electrically connecting with the transmission line 110, and then can be electrically connected with the required electrical unit (such as a phase shifter), and winding for avoiding other lines is not needed, so that the transmission distance can be shortened, and the energy loss in the transmission process can be reduced; meanwhile, the jumper network 100 is also beneficial to the more compact arrangement of the lines on the first substrate 200, the arrangement of the feed network is optimized, and the transmission line 110 and the lines on the first substrate 200 are staggered in a three-dimensional space, so that the coupling interference can be reduced.
On the basis of the above embodiments, as shown in fig. 5, in an embodiment, the first line 210 is provided with one of a power dividing line, a filtering line and a combining line. In this way different functions can be integrated as desired.
Specifically, in the present embodiment, the first line 210 is a power dividing line.
The transmission line 110 is a microstrip line or a stripline.
Specifically, in the present embodiment, the crossover network 100 is a microstrip line board. Therefore, the microstrip line is utilized to form a transmission channel, which is beneficial to reducing interference and improving feed performance.
As shown in fig. 1 and fig. 2, or fig. 3 and fig. 4, based on the above embodiments, in an embodiment, the microstrip line board includes a second substrate 130 and a first ground layer 120 disposed on the second substrate 130, the first ground layer 120 and the transmission line 110 are disposed on two sides of the second substrate 130 at an interval, and the first conductive portion 140 and the second conductive portion 150 are disposed on the second substrate 130; the first substrate 200 includes a front surface 202 and a back surface 204 opposite to the front surface 202, the first circuit 210 is disposed on the front surface 202, and the back surface 204 is disposed with a second ground layer electrically connected to the first ground layer 120. In this way, the second ground layer and the first ground layer 120 are communicated to form a shielding structure, so that the radiation of the transmission line 110 and the radiation of the first substrate 200 have consistency, the arrangement of the feed network can be optimized by using the cross-over network 100, and a part of the functional modules can be disposed on the cross-over network 100.
As shown in fig. 1, fig. 2, fig. 5 and fig. 6, or fig. 3 to fig. 6, in an embodiment, the second substrate 130 further includes a third conductive portion 160 electrically connected to the first ground layer 120, the first conductive portion 140, the second conductive portion 150 and the third conductive portion 160 are insulated from each other, and the second ground layer is electrically connected to the first ground layer 120 through the third conductive portion 160. The second ground layer and the first ground layer 120 are connected by the third conductive portion 160 to form a shielding structure, so that the radiation of the transmission line 110 and the radiation of the first substrate 200 have consistency, and further, the arrangement of the feed network can be optimized by the cross-over network 100, and a part of the first line 210 can be disposed on the cross-over network 100. Thus, the feeding network device utilizes the crossover network 100 to perform electrical connection, so that the arrangement between the first line 210 and the electrical unit is more flexible and compact, the requirements of multi-band and miniaturization development of the antenna are met, the loss can be reduced, and the coupling interference can be reduced.
The "first ground layer 120" and the "second ground layer" may be any layers as long as they can achieve a grounding function. Specifically, the metal conductive layer can be further formed by using techniques such as electroplating, electroless plating, or LDS. Of course, the conductive adhesive layer may be formed by an adhesive coating having a conductive property, or may be obtained by a metal patch, which is not limited herein, as long as it can be realized in the prior art.
In addition to the above embodiments, as shown in fig. 1 or fig. 3, in an embodiment, the first conductive portion 140 and the second conductive portion 150 are disposed to protrude from the second substrate 130, and form a first electrical connection structure. Thus, the first conductive part 140 and the second conductive part 150 are conveniently used for welding and fixing with the pads on the first substrate 200, and the first electrical connection structure is further used for mounting and fixing the crossover network 100, which is beneficial to reducing the number of mounting parts.
In another embodiment, at least two third conductive portions 160 are disposed to protrude from the second substrate 130 and form a second electrical connection structure. Thus, the third conductive part 160 is conveniently used for welding and fixing with the pad on the first substrate 200, and the second electrical connection structure is further used for mounting and fixing the jumper network 100, which is beneficial to reducing the number of mounting parts.
Or as shown in fig. 1 or fig. 3, in an embodiment, the first conductive portion 140 and the second conductive portion 150 are disposed to protrude from the second substrate 130 and form a first electrical connection structure, and at least two third conductive portions 160 are disposed to protrude from the second substrate 130 and form a second electrical connection structure. Thus, the first conductive part 140, the second conductive part 150, and the third conductive part 160 are conveniently soldered to the pads on the first substrate 200, and the first electrical connection structure and the second electrical connection structure are further used to realize the mounting and fixing of the crossover network 100, which is beneficial to reducing the number of mounting parts.
Alternatively, the third conductive portion 160 may be disposed on the same side of the second substrate 130 as the first conductive portion 140, and the third conductive portion 160 is electrically connected to the first ground layer 120 through a metal via.
Based on any of the above embodiments, as shown in fig. 1 and fig. 2, in an embodiment, at least two impedance branches 112 are disposed on the transmission line 110 at intervals. Thus, the impedance matching can be realized by using the impedance branch 112, so that the anti-interference capability of the transmission line 110 is better, and the energy benefit is favorably improved.
The impedance stub 112 is similar to the filter stub, but primarily serves as an impedance match.
Optionally, as shown in fig. 1, in an embodiment, the impedance branch 112 includes a first impedance body 102 and a second impedance body 104, and the first impedance body 102 and the second impedance body 104 are disposed at two sides of the transmission line 110 at an interval. Thus, the impedance branch 112 is formed by using the first impedance body 102 and the second impedance body 104, so that the design of impedance matching is more flexible.
As shown in fig. 3 and 4, in another embodiment, the cross-over network 100 further includes two third ground layers 170, the two third ground layers 170 are disposed on two sides of the transmission line 110 in an insulated manner, and the two ground layers are electrically connected to the first ground layer 120. Thus, the third ground layer 170 is disposed on two sides of the transmission line 110, so that the interference rejection of the transmission line 110 can be improved, and the energy efficiency can be improved.
On the basis of any of the above embodiments, as shown in fig. 2 or fig. 4, in an embodiment, the second substrate 130 includes at least two insertion portions 132 protruding from the second substrate, and the at least two insertion portions 132 cooperate to form a mounting structure. In this way, the plugging portion 132 is plugged and matched with the notch of the first substrate 200, so that the crossover network 100 is pre-fixed on the first substrate 200, and then the first conductive portion 140, the second conductive portion 150, and the third conductive portion 160 are spot-welded to the welding points on the first substrate 200, so that the crossover network 100 can be welded and fixed on the first substrate 200 while welding power feeding is realized, which is beneficial to reducing mounting parts.
Furthermore, the installation space of the base station antenna is smaller and smaller at present, the feeding calibration network device scheme is beneficial to reducing the weight and the volume of the base station antenna, and has great significance for correspondingly completing the construction of 4G or/and 5G base station antennas. The reduction of weight inevitably brings convenience to the installation of the base station antenna, reduces the burden on the installation area of the base station antenna, and particularly reduces the burden on an iron tower. And the volume is reduced, so that the 4G or/and 5G base station antenna can be installed in a limited space, the coverage of the 4G or/and 5G base station antenna in the area is realized, the base station antennas in other frequency bands do not need to be adjusted or dismantled, and the debugging time is greatly saved.
On the basis of any of the above embodiments, as shown in fig. 5 to 7, in an embodiment, the feeding network device further includes a phase shifting network 300 and a second line 230 partially disposed in the avoidance region, the phase shifting network 300 includes a first phase shifting circuit board 310 and a second phase shifting circuit board 320, the first line 210 is electrically connected to the first phase shifting circuit board 310 through a second transmission section 214, and the second line 230 is provided with a third transmission section 232 electrically connected to the second phase shifting circuit board 320. Thus, the first line 210, the second line 230 and the phase shifting network 300 can be arranged side by side, and the first line 210 is connected with the first phase shifting circuit board 310 by crossing the second line 230 through the crossover network 100, in this process, the energy loss caused by winding can be reduced, and meanwhile, the transmission line 110 of the crossover network 100 is not coupled with the second line 230, so that the feeding performance is further improved.
Further, in an embodiment, the first line 210 and the second line 230 are power dividing lines, the phase shift network 300 includes a cavity 330, the cavity 330 has a first shielding slot 332 for accommodating the first phase shift circuit board 310 and a second shielding slot 334 for accommodating the second phase shift circuit board 320, the front surface 202 has a fourth ground plane 240 insulated from the first line 210 and the second line 230, the fourth ground plane 240 cooperates with the first shielding slot 332 to form a first shielding cavity, and the fourth ground plane 240 cooperates with the second shielding slot 334 to form a second shielding cavity. Thus, the cavity 330 is fixed on the first substrate 200, and the fourth ground layer 240 and the shielding groove of the cavity 330 cooperate to form a shielding cavity capable of accommodating the phase shift circuit board layer and providing the dielectric board 340 for movement. Compared with the traditional structure, the thickness of one side surface of the electric unit cavity 330 can be reduced, and the reduction of the whole volume and weight of the feed network device is facilitated. Meanwhile, the fourth ground plane 240 and the first shielding groove 332 cooperate to form a first shielding cavity, and the fourth ground plane 240 and the second shielding groove 334 cooperate to form a second shielding cavity, so as to form a dual-channel structure, which is beneficial to improving the isolation. When the phase shifter is applied, the phase shifting functions of multiple forms such as one-channel low frequency and one-channel high frequency or two channels simultaneously being high frequency or low frequency can be realized, and the phase shifter is suitable for positive and negative 45-degree polarization. Meanwhile, the power dividing lines are used for connection, so that the feed network is more compact, and the miniaturization development of the antenna is facilitated.
It should be noted that the "cavity 330" is a metal housing or a dielectric housing + a metal layer, as long as the use requirement of the phase shifter can be satisfied.
Specifically, in this embodiment, the power dividing line is a one-to-two power divider.
Optionally, the power dividing line is provided with a filtering stub. In this way, the transmission performance of the feed network can be further optimized.
In an embodiment, a base station antenna is provided, which includes the feeding network apparatus in any of the above embodiments.
The base station antenna adopts the feed network device, and the base station antenna adopts the feed network device, so that the requirements of multi-band and miniaturization development can be met under the condition of ensuring the antenna performance.
In the present application, a "unit" is an abbreviation of a combination having a certain function or function.
In the present application, "a body" or "a portion" may be a part corresponding to a "member", that is, "a body" or "a portion" may be manufactured by being integrally molded with another part of the "member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.
It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present application can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" 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 "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
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 only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A feed network apparatus, comprising:
a first substrate;
the first circuit is arranged on the first substrate and comprises a first transmission section and a second transmission section, and the second transmission section and the first transmission section are arranged at intervals to form an avoidance area; and
the bridge connection network comprises a first conductive part electrically connected with the first transmission section, a second conductive part electrically connected with the second transmission section, and a transmission line arranged above the avoidance area, wherein the transmission line is respectively electrically connected with the first conductive part and the second conductive part.
2. The feed network arrangement of claim 1, wherein the first line is provided with one of a power dividing line, a filtering line and a combining line.
3. The feed network arrangement of claim 1, wherein the crossover network is a microstrip line board.
4. The feed network device of claim 3, wherein the microstrip line board comprises a second substrate, and a first ground layer disposed on the second substrate, the first ground layer being disposed on two sides of the second substrate opposite to the transmission line with a gap therebetween, the first conductive portion and the second conductive portion being disposed on the second substrate; the first substrate comprises a front surface and a back surface opposite to the front surface, the first circuit is arranged on the front surface, the back surface is provided with a second grounding layer, and the second grounding layer is electrically connected with the first grounding layer.
5. The feed network device as claimed in claim 4, wherein the second substrate further has a third conductive portion electrically connected to the first ground layer, the first conductive portion, the second conductive portion and the third conductive portion are disposed in an insulating manner, and the second ground layer is electrically connected to the first ground layer through the third conductive portion.
6. The feed network device of claim 5, wherein the first and second conductive portions are disposed protruding from the second substrate and form a first connection structure; or/and at least two third conductive parts are arranged and protrude out of the second substrate to form a second connection structure.
7. The feed network device of claim 1, wherein the transmission line is provided with at least two impedance branches arranged at intervals.
8. The feed network device of claim 7, wherein the impedance branch comprises a first impedance body and a second impedance body, and the first impedance body and the second impedance body are oppositely arranged on two sides of the transmission line at an interval.
9. The feed network device of claim 4, wherein the crossover network further comprises two third ground planes, the two third ground planes being disposed on opposite sides of the transmission line in an insulated manner, the two third ground planes being electrically connected to the first ground plane.
10. The feed network device of claim 4, wherein the second substrate includes at least two protruding insertion portions, and the at least two insertion portions cooperate to form a mounting structure.
11. The feed network device according to any one of claims 1 to 10, further comprising a phase shifting network and a second line partially disposed in the avoiding region, wherein the phase shifting network comprises a first phase shifting circuit board and a second phase shifting circuit board, the first line is electrically connected to the first phase shifting circuit board through the second transmission section, and the second line is provided with a third transmission section electrically connected to the second phase shifting circuit board.
12. The power feeding network device of claim 11, wherein the first line and the second line are power dividing lines, the phase shifting network includes a cavity, the cavity includes a first shielding slot for accommodating the first phase shifting circuit board and a second shielding slot for accommodating the second phase shifting circuit board, the first substrate includes a fourth ground plane insulated from the first line and the second line, the fourth ground plane and the first shielding slot cooperate to form a first shielding cavity, and the fourth ground plane and the second shielding slot cooperate to form a second shielding cavity.
13. A base station antenna, characterized in that it comprises a feeding network arrangement according to any of claims 1 to 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431079.9A CN111478046B (en) | 2020-05-20 | 2020-05-20 | Base station antenna and feed network device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431079.9A CN111478046B (en) | 2020-05-20 | 2020-05-20 | Base station antenna and feed network device |
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| CN111478046A CN111478046A (en) | 2020-07-31 |
| CN111478046B true CN111478046B (en) | 2021-09-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421225B (en) * | 2020-10-21 | 2022-07-19 | 武汉虹信科技发展有限责任公司 | Lumped feed device and base station antenna |
| EP4243198A4 (en) * | 2020-12-29 | 2023-12-20 | Huawei Technologies Co., Ltd. | Suspension strip, phase shifter, and base station |
| CN112952330B (en) * | 2021-02-02 | 2023-05-09 | 成都中微普业科技有限公司 | Non-planar microstrip line structure |
| CN112909466B (en) * | 2021-03-24 | 2025-01-24 | 京信通信技术(广州)有限公司 | A switching board, switching network and antenna |
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| CN109802234A (en) * | 2019-01-30 | 2019-05-24 | 京信通信技术(广州)有限公司 | Antenna for base station and its phase shift feeder equipment |
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| JP2000196332A (en) * | 1998-12-25 | 2000-07-14 | Mitsubishi Electric Corp | Circuit module and manufacture of the same |
| KR20030021069A (en) * | 2001-09-05 | 2003-03-12 | (주) 코산아이엔티 | Micro chip antenna |
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| CN111478046A (en) | 2020-07-31 |
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