CN217306736U - High-performance small-size MIMO antenna - Google Patents
High-performance small-size MIMO antenna Download PDFInfo
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- CN217306736U CN217306736U CN202220934063.4U CN202220934063U CN217306736U CN 217306736 U CN217306736 U CN 217306736U CN 202220934063 U CN202220934063 U CN 202220934063U CN 217306736 U CN217306736 U CN 217306736U
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Abstract
The utility model relates to the technical field of antenna, a MIMO antenna of high performance small-size is disclosed, including the router main casing body, 2.4G antenna mechanism and 5G antenna mechanism, router main casing body rear side left part all is provided with a set of 2.4G antenna mechanism with well right part input, left part all is provided with a set of 5G antenna mechanism with right part input in the router main casing body rear side. The utility model discloses in, mainly by type one radiation arm one in the antenna design, type one radiation arm two, type one radiation arm three, type one radiation arm four, type one inverter and coaxial feeder one are constituteed, constitute the antenna array through type one radiation arm one and the mode of type one radiation arm two coaxial feeds, reach the purpose of antenna high gain, 2.4G antenna maximum gain can reach 4dBi at present, constitute the antenna array through type two radiation arm one and the mode of type two coaxial feeds of type two radiation arms, 5G antenna maximum gain can reach 6.5dBi at present, under the prerequisite of having realized the reduction of router size, power realization gain.
Description
Technical Field
The utility model relates to an antenna technology field especially relates to a MIMO antenna of high performance small-size.
Background
Most of the routers on the market currently have a multi-antenna mode of 2 × 2, 4 × 4, and 8 × 8, the MIMO technology is a hardware device that connects two or more networks, and the router plays a role of a gateway between the networks, and is a dedicated intelligent network device that reads an address in each data packet and then determines how to transmit, so that the router is a key technology in a new generation of mobile communication system, and can multiply the system capacity and transmission rate without increasing bandwidth and transmission power, and is widely considered as one of core technologies of LTE and 4G.
The existing defects are that firstly, the overall appearance size is larger, the cost is high, secondly, an antenna meeting performance requirements can be designed under the condition of smaller size, because a multiple antenna is adopted in the MIMO system, not only can interference be generated among the antennas, but also stronger radiation interference can be generated to other mobile terminal environments, and because the size of mobile communication equipment is reduced day by day, the requirement on antenna miniaturization is also improved gradually, therefore, the unit antenna with small size, multiple frequency bands and wide frequency bands and good isolation effect are the difficulties in the MIMO design.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and provides a MIMO antenna with high performance and small size.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-performance small-size MIMO antenna comprises a router main shell, a 2.4G antenna mechanism and a 5G antenna mechanism, wherein a group of 2.4G antenna mechanisms are arranged at the left input end and the middle right input end of the rear side of the router main shell, and a group of 5G antenna mechanisms are arranged at the middle left input end and the right input end of the rear side of the router main shell;
the 5G antenna mechanism comprises a 5G antenna shell, a first two-type radiation arm, a second coaxial feeder line, a second two-type radiation arm, a third two-type radiation arm, a first two-type phase inverter, a fourth two-type radiation arm, a fifth two-type radiation arm, a second two-type phase inverter and a sixth two-type radiation arm, wherein the first two-type radiation arm is arranged on the right side inside the 5G antenna shell, the inner input end of the first two-type radiation arm is fixedly connected with the second coaxial feeder line, the left output end of the second coaxial feeder line is fixedly connected with the right input end of the second two-type radiation arm, the left output end of the second two-type radiation arm is fixedly connected with the right input end of the first two-type phase inverter, the left output end of the fourth two-type radiation arm is fixedly connected with the right input end of the fifth two-type radiation arm, the left output end of the fifth two-type radiation arm is fixedly connected with the right input end of the second two-type phase inverter, and the left output end of the second type phase inverter is fixedly connected with the right input end of the second type radiation arm II.
As a further description of the above technical solution:
2.4G antenna mechanism includes 2.4G antenna shell, a type radiation arm one, coaxial feeder one, a type radiation arm two, a type radiation arm three, a type phase inverter and a type radiation arm four, right part fixed connection a type radiation arm one in the 2.4G antenna shell inside wall, a type radiation arm one inside fixed connection coaxial feeder, a type radiation arm two of 2.4G antenna shell inside wall middle part fixed connection, the three right side inputs of a type radiation arm of a left side output fixed connection of a type radiation arm two, a type phase inverter of left part fixed connection in the 2.4G antenna shell inside wall, the four right side outputs of a type radiation arm of three left side inputs fixed connection of a type radiation arm.
As a further description of the above technical solution:
the left side input and output of the second type radiation arm II are fixedly connected with the input end of the main shell of the router.
As a further description of the above technical solution:
the router main housing has a dimension of 200 × 120 × 25 mm.
As a further description of the above technical solution:
the dimensions of the 5G antenna case and the 2.4G antenna case are 120 x 20 x 5 mm.
As a further description of the above technical solution:
the size of the inner side wall of the 5G antenna shell and the 2.4G antenna shell is 107 x 13 x 0.6 mm.
As a further description of the above technical solution:
the right side input end of the first type radiation arm II is fixedly connected with the left side output end of the coaxial feeder line I, the right side input end of the first type phase inverter is fixedly connected with the left side output end of the first type radiation arm II, and the left side output end of the first type radiation arm II is connected with the rear side input end of the router main shell.
As a further description of the above technical solution:
the 2.4G antenna mechanism and the 5G antenna mechanism are both provided with two groups, and the 2.4G antenna mechanism and the 5G antenna mechanism are uniformly and fixedly connected to the input end of the rear side of the router main shell in a crossed manner.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, at first through the 2.4G antenna mechanism that increases, 2.4G antenna mainly comprises FR4 panel and coaxial line, the antenna frequency channel covers 2.4G-2.5G, mainly by a type radiation arm one in the antenna design, a type radiation arm two, a type radiation arm three, a type radiation arm four, a type phase inverter and coaxial feeder one constitute, constitute the antenna array through a type radiation arm one and the mode of two coaxial feeds of a type radiation arm, reach the purpose of antenna high gain, 2.4G antenna maximum gain can reach 4dBi at present.
2. The utility model discloses in, through the 5G antenna mechanism that increases, the 5G antenna mainly comprises FR4 panel and coaxial line, the antenna frequency channel covers 5.15G-5.85G, mainly by two type radiation arms one in the antenna design, two type radiation arms two, two type radiation arms three, two type radiation arms four, two type radiation arms five, two type radiation arms six, two type phase inverter one, two types phase inverter and two constitution of coaxial feeder, constitute the antenna array through two coaxial feeds of two type radiation arms one and two types radiation arms, reach the purpose of antenna high gain, 6.5dBi can be arrived to present 5G antenna maximum gain, under the prerequisite of having realized the reduction of router size, power realization gain.
Drawings
Fig. 1 is an isometric view of a high performance small MIMO antenna according to the present invention;
fig. 2 is a schematic structural diagram of a 2.4G antenna mechanism of a MIMO antenna with high performance and small size according to the present invention;
fig. 3 is a schematic structural diagram of a 5G antenna mechanism of a MIMO antenna with high performance and small size according to the present invention;
fig. 4 is a schematic diagram of the architecture of a 2.4G antenna S11 of a MIMO antenna with high performance and small size according to the present invention;
fig. 5 is a table diagram illustrating the S11 parameters of a 2.4G antenna of a MIMO antenna with high performance and small size according to the present invention;
fig. 6 is a schematic diagram of the passive data of the 2.4G antenna of the MIMO antenna with high performance and small size according to the present invention;
fig. 7 is a schematic diagram of the architecture of the 5G antenna S11 of the MIMO antenna with high performance and small size according to the present invention;
fig. 8 is a table diagram illustrating the parameters of the 5G antenna S11 of the MIMO antenna with high performance and small size according to the present invention;
fig. 9 is a schematic diagram of the passive data of the 5G antenna of the MIMO antenna with high performance and small size according to the present invention;
fig. 10 is a schematic diagram of the antenna isolation of the MIMO antenna with high performance and small size according to the present invention.
Illustration of the drawings:
1. a router main housing; 2. a 2.4G antenna mechanism; 3. a 5G antenna mechanism; 201. 2.4G antenna housing; 202. a first radiation arm I; 203. a first coaxial feeder line; 204. a first radiation arm II; 205. a first radiation arm III; 206. a first-type inverter; 207. a first radiation arm; 301. a 5G antenna housing; 302. a first type radiation arm; 303. a second coaxial feeder line; 304. a second type radiation arm II; 305. a second type radiation arm III; 306. a first phase inverter; 307. a second type radiation arm II; 308. a second type radiation arm II; 309. a second type phase inverter; 310. the second type radiation arm six.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-10, the present invention provides an embodiment: a high-performance small-size MIMO antenna comprises a router main shell 1, 2.4G antenna mechanisms 2 and 5G antenna mechanisms 3, wherein a group of 2.4G antenna mechanisms 2 are respectively arranged at the left part and the middle right part of the rear side of the router main shell 1, and a group of 5G antenna mechanisms 3 are respectively arranged at the left part and the right part of the rear side of the router main shell 1;
the 5G antenna mechanism 3 comprises a 5G antenna shell 301, a first second radiation arm 302, a second coaxial feeder 303, a second radiation arm 304, a third second radiation arm 305, a first two-type phase inverter 306, a fourth two-type radiation arm 307, a fifth two radiation arm 308, a second two-type phase inverter 309 and a sixth two radiation arm 310, the first two radiation arm 302 is arranged on the right side in the 5G antenna shell 301, the inner input end of the first two radiation arm 302 is fixedly connected with the second coaxial feeder 303, the left output end of the second coaxial feeder 303 is fixedly connected with the right input end of the second two radiation arm 304, the left output end of the second two radiation arm 304 is fixedly connected with the right input end of the first two-type phase inverter 306, the left output end of the first two-type phase inverter 306 is fixedly connected with the right input end of the fourth two-type radiation arm 307, the left output end of the fourth two-type radiation arm 307 is fixedly connected with the right input end of the fifth two-type radiation arm 308, the left output end of the fifth two radiation arm 308 is fixedly connected with the right input end of the second two phase inverter 309, the left output end of the second type phase inverter II 309 is fixedly connected with the right input end of the second type radiation arm six 310, the left input and output of the second type radiation arm six 310 is fixedly connected with the input end of the router main shell 1, through an added 5G antenna mechanism, a 5G antenna mainly comprises an FR4 board and a coaxial line, the antenna frequency band covers 5.15G-5.85G, the antenna design mainly comprises a first type radiation arm 302, a second type radiation arm II 304, a second type radiation arm III 305, a second type radiation arm IV 307, a second type radiation arm V308, a second type radiation arm six 310, a first type phase inverter 306, a second type phase inverter 309 and a second coaxial feeder 303, and an antenna array is formed through coaxial feeding of the first type radiation arm 302 and the second type radiation arm II 304, so that the purpose of high gain of the antenna is achieved, and the maximum gain of the 5G antenna can reach 6.5dBi at present.
The 2.4G antenna mechanism 2 comprises a 2.4G antenna shell 201, a first type radiation arm 202, a first coaxial feeder 203, a second type radiation arm 204, a third type radiation arm 205, a first type inverter 206 and a fourth type radiation arm 207, wherein the first type radiation arm 202 is fixedly connected with the right part of the inner side wall of the 2.4G antenna shell 201, the first type radiation arm 203 is fixedly connected with the inside of the first type radiation arm 202, the second type radiation arm 204 is fixedly connected with the middle part of the inner side wall of the 2.4G antenna shell 201, the left output end of the second type radiation arm 204 is fixedly connected with the right input end of the third type radiation arm 205, the first type inverter 206 is fixedly connected with the left part of the inner side wall of the 2.4G antenna shell 201, the left input end of the third type radiation arm 205 is fixedly connected with the right output end of the fourth type radiation arm 207, the right input end of the second type radiation arm 204 is fixedly connected with the left output end of the coaxial feeder 203, the right input end of the first type inverter 206 is fixedly connected with the left output end of the third type radiation arm 205, the left output end of a first-type radiation arm IV 207 is connected with the rear input end of the router main shell 1, a 2.4G antenna mainly comprises FR4 plates and coaxial lines, the frequency band of the antenna covers 2.4G-2.5G, the antenna is mainly composed of a first-type radiation arm I202, a second-type radiation arm II 204, a third-type radiation arm 205, a fourth-type radiation arm 207, a phase inverter 206 and a first coaxial feeder 203, and an antenna array is formed by feeding the first-type radiation arm I202 and the second-type radiation arm II 204 coaxially, so that the high gain of the antenna is achieved, and the maximum gain of the current 2.4G antenna can reach 4 dBi; the 2.4G antenna mechanisms 2 and the 5G antenna mechanisms 3 are respectively provided with two groups, and the two groups of 2.4G antenna mechanisms 2 and the 5G antenna mechanisms 3 are uniformly and fixedly connected to the rear-side input end of the router main shell 1 in a crossed manner; the router main housing 1 has dimensions of 200 × 120 × 25 mm; the dimensions of 5G antenna casing 301 and 2.4G antenna casing 201 are 120 × 20 × 5 mm; 5G antenna shell 301 and 2.4G antenna shell 201's inside wall size is 107 × 13 × 0.6mm, constitutes MIMO through 2 2.4G and 2 small-size WIFI antennas of high performance of 5G, and the main component part is the router body, antenna housing and antenna body.
Referring to FIGS. 4-10: the data in the attached drawings show that the return loss of the antenna is less than-10 dB, the standing-wave ratio is less than 2.0, the isolation of the antenna is less than-25 dB, the maximum gain of the 2.4G antenna is 4dDi, the maximum gain of the 5G antenna is 6.5dDi, the efficiency in the frequency band of the 2.4G antenna is more than 70%, the efficiency in the frequency band of the 5G antenna is more than 60%, the out-of-roundness of an H surface in the horizontal direction is less than 5, and various performance parameters of the antenna meet the design requirements.
The working principle is as follows: 2 high-performance small-size WIFI antennas of 2.4G and 2 small-size WIFI antennas of 5G form MIMO, the main components are a router body, an antenna shell and an antenna body, and the size of the router main shell 1 is 200 × 120 × 25 mm; the dimensions of 5G antenna casing 301 and 2.4G antenna casing 201 are 120 × 20 × 5 mm; the size of the inner side walls of the 5G antenna shell 301 and the 2.4G antenna shell 201 is 107 × 13 × 0.6mm, the 2.4G antenna is mainly composed of FR4 plates and coaxial lines, the antenna frequency band covers 2.4G-2.5G, the antenna design mainly comprises a first type radiation arm I202, a second type radiation arm 204, a third type radiation arm 205, a fourth type radiation arm 207, a first type inverter 206 and a coaxial feeder line I203, the antenna array is composed by the coaxial feeding mode of the first type radiation arm I202 and the second type radiation arm II 204, the purpose of high gain of the antenna is achieved, the 5G antenna is mainly composed of FR4 plates and coaxial lines, the antenna frequency band covers 5.15G-5.85G, the antenna design mainly comprises a first type radiation arm 302, a second type radiation arm II 304, a third type radiation arm 305, a fourth type radiation arm 307, a fifth type radiation arm 308, a sixth type radiation arm 310, a first type inverter 306, the two type phase inverter 309 and the two coaxial feeder 303 form an antenna array by the coaxial feeding of the two type radiation arm one 302 and the two type radiation arm two 304, so as to achieve the purpose of high gain of the antenna, and the maximum gain of the current 5G antenna can reach 6.5 dBi.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (8)
1. A high-performance small-size MIMO antenna, including router main casing (1), 2.4G antenna mechanism (2) and 5G antenna mechanism (3), characterized by: a group of 2.4G antenna mechanisms (2) are arranged at the left part and the middle right part of the rear side of the router main shell (1), and a group of 5G antenna mechanisms (3) are arranged at the middle left part and the right part of the rear side of the router main shell (1);
the 5G antenna mechanism (3) comprises a 5G antenna shell (301), a first type radiation arm (302), a second coaxial feeder (303), a second type radiation arm (304), a third type radiation arm (305), a first type phase inverter (306), a fourth type radiation arm (307), a fifth type radiation arm (308), a second type phase inverter (309) and a sixth type radiation arm (310), the first type radiation arm (302) is arranged on the right side inside the 5G antenna shell (301), the inner input end of the first type radiation arm (302) is fixedly connected with the second coaxial feeder (303), the left output end of the second coaxial feeder (303) is fixedly connected with the right input end of the second type radiation arm (304), the left output end of the second type radiation arm (304) is fixedly connected with the right input end of the first type phase inverter (306), the left output end of the first type phase inverter (306) is fixedly connected with the right input end of the fourth type radiation arm (307), the left side output end of the second type radiation arm IV (307) is fixedly connected with the right side input end of the second type radiation arm V (308), the left side output end of the second type radiation arm V (308) is fixedly connected with the right side input end of the second type phase inverter (309), and the left side output end of the second type phase inverter (309) is fixedly connected with the right side input end of the second type radiation arm VI (310).
2. A high performance small size MIMO antenna according to claim 1, wherein: the 2.4G antenna mechanism (2) comprises a 2.4G antenna shell (201), a first type radiation arm (202), a first coaxial feeder (203), a second type radiation arm (204), a third type radiation arm (205), a phase inverter (206) and a fourth type radiation arm (207), the middle right part of the inner side wall of the 2.4G antenna shell (201) is fixedly connected with a first linear radiation arm (202), the first type of radiation arm (202) is fixedly connected with a first coaxial feeder (203), the middle part of the inner side wall of the 2.4G antenna shell (201) is fixedly connected with a second linear radiation arm (204), the left output end of the first-type radiation arm II (204) is fixedly connected with the right input end of the first-type radiation arm III (205), the left part of the inner side wall of the 2.4G antenna shell (201) is fixedly connected with a type-I inverter (206), the left side input end of the first-type radiating arm III (205) is fixedly connected with the right side output end of the first-type radiating arm IV (207).
3. A high performance small size MIMO antenna according to claim 1, wherein: the left input and output of the two-type radiation arm six (310) are fixedly connected with the input end of the router main shell (1).
4. A high performance small size MIMO antenna according to claim 1, wherein: the router main housing (1) has dimensions of 200 × 120 × 25 mm.
5. A high performance small size MIMO antenna according to claim 1 or 2, wherein: the dimensions of the 5G antenna case (301) and the 2.4G antenna case (201) are 120 x 20 x 5 mm.
6. A high performance small size MIMO antenna according to claim 1 or 2, wherein: the size of the inner side wall of the 5G antenna shell (301) and the size of the inner side wall of the 2.4G antenna shell (201) are 107 x 13 x 0.6 mm.
7. A high performance small size MIMO antenna according to claim 2, wherein: the right side input end of the first type radiation arm II (204) is fixedly connected with the left side output end of the first coaxial feeder line (203), the right side input end of the first type phase inverter (206) is fixedly connected with the left side output end of the first type radiation arm III (205), and the left side output end of the first type radiation arm IV (207) is connected with the rear side input end of the router main shell (1).
8. A high performance small size MIMO antenna according to claim 1, wherein: 2.4G antenna mechanism (2) and 5G antenna mechanism (3) all are provided with two sets ofly, two sets of 2.4G antenna mechanism (2) and 5G antenna mechanism (3) are even alternately fixed connection on the rear side input of router main casing body (1).
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| CN202220934063.4U CN217306736U (en) | 2022-04-20 | 2022-04-20 | High-performance small-size MIMO antenna |
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| CN202220934063.4U CN217306736U (en) | 2022-04-20 | 2022-04-20 | High-performance small-size MIMO antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117605A (en) * | 2022-04-20 | 2022-09-27 | 中山市博安通通信技术有限公司 | High-performance small-size MIMO antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117605A (en) * | 2022-04-20 | 2022-09-27 | 中山市博安通通信技术有限公司 | High-performance small-size MIMO antenna |
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