TWI692149B - Antenna structure and wireless communication device using the same - Google Patents

Abstract

An antenna structure includes an octagonal circuit board and four antenna modules, the octagonal circuit board includes opposite upper and lower surfaces, the octagonal circuit board further includes eight sides, and the eight sides connects the upper surface and the lower surface. The four antenna modules are respectively disposed on four sides of the octagonal circuit board, and the four sides are not adjacent to each other, and each of the antenna modules are electrically connected to the side by a feed portion. The present invention also provides a wireless communication device using the antenna structure.

Description

Antenna structure and wireless communication device with the antenna structure

The invention relates to an antenna structure and a wireless communication device with the antenna structure.

At present, printed circuit boards (PCBs) of wireless communication products mostly adopt a square design, with millimeter wave antenna modules placed on four sides, and 2G/3G/4G antennas placed at four corners. However, placing a transmission interface next to the millimeter-wave antenna on the four sides of the square circuit board will affect the transmission and reception of antenna signals, and will also limit the design of the product.

In view of the above, it is necessary to provide an antenna structure and a wireless communication device having the antenna structure.

An embodiment of the present invention provides an antenna structure. The antenna structure includes an octagonal circuit board and four antenna modules. The octagonal circuit board includes oppositely disposed upper and lower surfaces. The circuit board further includes eight side surfaces connecting the upper surface and the lower surface, and the four antenna modules are respectively disposed on the four side surfaces of the octagonal circuit board, and the four side surfaces are not mutually Adjacent, each of the antenna modules is electrically connected to the side through a feed-in portion.

An embodiment of the present invention provides a wireless communication device. The wireless communication device includes a housing and an antenna structure as described above. The housing is used to accommodate the antenna structure.

In the above antenna structure and the wireless communication device using the antenna structure, by designing the circuit board as an octagonal circuit board, the antenna module can be placed on two non-adjacent sides. In this way, the signal transmission interface can be provided on one side of the middle of the two antenna modules to avoid interference with the antenna signal.

100: wireless communication device

10: Antenna structure

12: Octagonal circuit board

122: upper surface

124: lower surface

126: Side

14: Antenna module

16: Feeding Department

17: substrate

171: The first surface

172: Second surface

173: Side wall

174: First side wall

175: second side wall

176: Third side wall

18: The first antenna

19: Second antenna

20: Shell

22: upper cover

24: Lower cover

26: Middle frame

262: Groove

264: Containment Department

266: Dielectric lens

30: battery

FIG. 1 is a schematic diagram of a wireless communication device according to a preferred embodiment of the present invention.

2 is a disassembled exploded view of a wireless communication device according to a preferred embodiment of the present invention.

3 is a disassembled exploded view of the wireless communication device according to a preferred embodiment of the present invention at another angle.

FIG. 4 is a schematic diagram of the antenna structure shown in FIG. 2.

FIG. 5 is a top view of the antenna structure shown in FIG. 4.

6 is a schematic diagram of the antenna module shown in FIG. 4.

FIG. 7 is a diagram showing the state of use of the antenna structure in a wireless communication device.

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

It should be noted that when an element is called "electrically connected" to another element, it may be directly on the other element or there may be a centered element. When an element is considered "electrically connected" Another element may be a contact connection, for example, a wire connection, or a contactless connection, for example, a contactless coupling.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used in the description of the present invention herein is for the purpose of describing specific embodiments, and is not intended to limit the present invention. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

Please refer to FIGS. 1 to 3, a preferred embodiment of the present invention provides a wireless communication device 100. The wireless communication device 100 includes an antenna structure 10, a housing 20 and a battery 30.

The housing 20 is used to accommodate the antenna structure 10 and the battery 30. The antenna structure 10 is used to transmit and receive radio waves. The battery 30 is used to power the antenna structure 10. Obviously, the wireless communication device 100 also includes, but is not limited to, other mechanical structures, electronic components, modules, and software that implement its preset functions.

In a preferred embodiment, the wireless communication device 100 may be a 5G router.

The housing 20 includes an upper cover 22, a lower cover 24 and a middle frame 26. The upper portion of the middle frame 26 is provided with a groove 262 for accommodating the battery 30, and the lower portion of the middle frame 26 is provided with a receiving portion 264 for receiving the antenna structure 10.

The upper cover 22 is in contact with the upper portion of the middle frame 26, and the lower cover 24 is in contact with the lower portion of the middle frame 26. In this way, both the antenna structure 10 and the battery 30 can be accommodated in the housing 20.

4 and 5, the antenna structure 10 may include an octagonal circuit board 12 and four antenna modules 14. The octagonal circuit board 12 includes an upper surface 122 and a lower surface 124 disposed oppositely. The octagonal circuit board 12 further includes eight side surfaces 126 connecting the upper surface 122 and the lower surface 124.

The four antenna modules 14 are respectively disposed on the four side surfaces 126 of the octagonal circuit board 12, the four side surfaces 126 are not adjacent to each other, and each of the antenna modules 14 can pass one The feeding portion 16 is electrically connected to the corresponding side surface 126. Each feeding portion 16 is used to feed a current signal to the corresponding antenna module 14. The feeding portion 16 may be a flexible printed circuit board (Flexible Printed Circuit Board, FPC).

Please refer to FIG. 6, each of the antenna modules 14 includes a substrate 17 and a plurality of first antennas 18 arranged in a line. The substrate 17 includes a first surface 171 and a second surface 172 disposed oppositely. The substrate 17 further includes a side wall 173 connecting the first surface 171 and the second surface 172.

The side wall 173 includes a first side wall 174 and a second side wall 175 disposed oppositely. The side wall 173 further includes a third side wall 176. The first side wall 174 is parallel to the second side wall 175 and the third side wall 176 Vertically connected to the first side wall 174 and the second side wall 175, the plurality of first antennas 18 are disposed on the first surface 171. In this embodiment, the substrate 17 has a rectangular structure.

In other embodiments, the plurality of first antennas 18 may be disposed inside the substrate 17 or disposed on the side wall 173.

Further, each of the antenna modules 14 further includes a plurality of second antennas 19 arranged in a line, and the plurality of second antennas 19 are disposed on the first surface 171. In each of the antenna modules 14, the number of the first antenna 18 and the second antenna 19 is the same. Both the first antenna 18 and the second antenna 19 are millimeter wave antennas.

The linear second antennas 19 are parallel to the linear first antennas 18, and the linear first antennas 18 are parallel to the first side wall 174. The linearly arranged first antennas 18 are arranged close to the first side wall 174, and the linearly arranged second antennas 19 are arranged close to the second side wall 175.

In this embodiment, the first antenna 18 is a dipole antenna, and the second antenna 19 may be a patch antenna, a micro-strip antenna, or a dual antenna Polarization antenna (dual-polarization antenna). Each of the first antennas 18 includes two monopole antennas, and each of the monopole antennas includes a radiating unit and a feeding unit.

The signal radiation direction of the first antennas 18 is perpendicular to the first side wall 174 and parallel to the first surface 171, and the signal radiation direction of the first antennas 18 is from the first The antenna 18 is away from the direction of the second antennas 19. The signal radiation direction of the plurality of second antennas 19 is perpendicular to the first surface 171 and is a direction away from the first surface 171 from the plurality of second antennas 19.

In the preferred embodiment, the second surface 172 of each antenna module 14 is docked with the side surface 126 of the octagonal circuit board 12. The first side wall 174 and the second side wall 175 of each substrate 17 are parallel to the upper surface 122 of the circuit board 12.

In the four antenna modules 14 in the perspective of FIG. 4, two adjacent antenna modules 14 are arranged such that the plurality of first antennas 18 are located above the plurality of second antennas 19 and the remaining two antennas The module 14 is configured such that the first antennas 18 are located below the second antennas 19. For example, in FIG. 4, the two antenna modules 14 on the right are arranged such that the first antennas 18 are located above the second antennas 19, and the two antenna modules 14 on the left are arranged as the first antennas 18 is located below the plurality of second antennas 19. The arrangement is such that the signal radiation direction of the plurality of first antennas 18 in each of the antenna modules 14 is equal to the number of firsts of the antenna modules 14 of one of the two adjacent antenna modules 14 The signal radiation direction of the antenna 18 is the same, and is opposite to the signal radiation direction of the first antennas 18 of the other one of the two adjacent antenna modules 14. Such an arrangement can make up for the problem of insufficient signal coverage of a single antenna module 14.

In other embodiments, the four antenna modules 14 can be divided into two parts. The signal radiation directions of the first antennas 18 of some of the antenna modules 14 are opposite to those of the first antennas 18 of the other part of the antenna modules 14. Such an arrangement can also make up for the problem of insufficient signal coverage of a single antenna module 14.

The octagonal circuit board 12 may be a regular octagon or not a regular octagon. The angle between the signal radiation direction of the plurality of second antennas 19 of each antenna module 14 and the signal radiation direction of the plurality of second antennas 19 of another adjacent antenna module 14 is 70 degrees to 110 degrees . If the octagonal circuit board 12 is a regular octagon, the signal radiation direction of the plurality of second antennas 19 of each antenna module 14 and the plurality of second antennas of the adjacent another antenna module 14 The signal radiation directions of the antenna 19 are perpendicular to each other.

Please refer to FIG. 7, the middle frame 26 may also be provided with a plurality of dielectric lenses 266, the dielectric lenses 266 are corresponding to the antenna modules 14, and each of the dielectric lenses 266 is used to concentrate the corresponding The beam of the antenna module 14 can also increase the peak gain of the antenna module 14. In this embodiment, four dielectric lenses 266 are provided on the middle frame 26, and the four dielectric lenses 266 are in contact with the four antenna modules 14.

In an embodiment, the dielectric lens 266 may be a convex convex inner flat or a flat outer concave female lens. The outside refers to the direction away from the antenna module 14, and the inside refers to approaching the The direction of the antenna module 14. The dielectric lens 266 can also be selected from different materials, such as ceramic, plastic, glass, etc., to improve the performance of the antenna module 14.

In the above antenna structure 10 and the wireless communication device 100 using the antenna structure 10, by designing the circuit board as an octagonal circuit board, the antenna module 14 can be placed on the non-adjacent side 126. In this way, the signal transmission interface can be disposed on one side 126 between the two antenna modules 14 to avoid interference with the antenna signal.

In summary, the present invention has indeed met the requirements of the invention patent, so a patent application was filed in accordance with the law. However, the above are only the preferred embodiments of the present invention, and thus cannot limit the scope of patent application in this case. Anyone who is familiar with the skills of this case and equivalent modifications or changes made in accordance with the spirit of the present invention should be covered by the following patent applications.

10: Antenna structure

12: Octagonal circuit board

122: upper surface

124: lower surface

126: Side

14: Antenna module

Claims (11)

An antenna structure, wherein the antenna structure includes an octagonal circuit board and four antenna modules, the octagonal circuit board includes oppositely disposed upper and lower surfaces, and the octagonal circuit board further includes Eight side surfaces connecting the upper surface and the lower surface, the four antenna modules are respectively disposed on the four side surfaces of the octagonal circuit board, the four side surfaces are not adjacent to each other, each Each of the antenna modules is electrically connected to the side through a feed-in portion, wherein each of the antenna modules includes a substrate and a plurality of first antennas arranged in a line, the substrate includes oppositely arranged first The surface and the second surface, the substrate further includes a side wall connecting the first surface and the second surface, the side wall includes a first side wall and a second side wall disposed oppositely, and the side wall further includes a third side wall, The first side wall is parallel to the second side wall, the third side wall is vertically connected to the first side wall and the second side wall, the plurality of first antennas are disposed on the first surface, the Inside the substrate or the side wall. The antenna structure according to claim 1, wherein each of the antenna modules further includes a plurality of second antennas arranged in a line, and the plurality of second antennas are arranged on the first surface, and the lines are arranged in a line A number of second antennas are parallel to the first antennas arranged in a line, and a number of first antennas arranged in the line are parallel to the first side walls. The antenna structure according to claim 2, wherein the signal radiation direction of the plurality of first antennas is perpendicular to the first side wall and parallel to the first surface, and the signal radiation of the plurality of first antennas The direction is a direction away from the plurality of first antennas from the plurality of first antennas, the signal radiation direction of the plurality of second antennas is perpendicular to the first surface, and is from the plurality of second antennas Away from the first surface. The antenna structure according to claim 3, wherein the second surface of each of the antenna modules is butted with the side of the octagonal circuit board, and the first side wall of each of the substrates is parallel to the circuit The upper surface of the board. The antenna structure according to claim 4, wherein the signal radiation directions of several first antennas in each of the antenna modules and one of the antenna modules of two adjacent antenna modules The signal radiation directions of the plurality of first antennas are the same, and are opposite to the signal radiation directions of the plurality of first antennas of the other one of the two adjacent antenna modules. The antenna structure according to claim 4, wherein the signal radiation directions of the plurality of second antennas of each antenna module and the plurality of second antennas of another adjacent antenna module The angle of the signal radiation direction is 70 degrees to 110 degrees. The antenna structure according to claim 2, wherein the first antenna is a dipole antenna, and the second antenna is a chip antenna, a microstrip antenna, or a dual polarized antenna. The antenna structure according to claim 1, wherein the four antenna modules are divided into two parts, wherein a signal radiation direction of a plurality of first antennas of one part of the antenna module and another part of the antenna module The signal radiation directions of several first antennas in the group are opposite. A wireless communication device includes a housing and the antenna structure according to any one of claims 1-8, and the housing is used to accommodate the antenna structure. The wireless communication device according to claim 9, wherein the wireless communication device further includes a battery, the housing includes an upper cover, a lower cover, and a middle frame, and an upper portion of the middle frame is provided with a battery containing the battery A groove, a lower portion of the middle frame is provided with a receiving portion for accommodating the antenna structure, the upper cover is in contact with the upper portion of the middle frame, and the lower cover is in contact with the lower portion of the middle frame. The wireless communication device according to claim 10, wherein the middle frame is further provided with a plurality of dielectric lenses, the dielectric lenses correspond to the antenna modules in one-to-one correspondence, and each of the dielectric lenses is used to collectively correspond The beam of the antenna module.

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