CN210272699U - Multi-frequency array antenna - Google Patents
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- CN210272699U CN210272699U CN201921008585.6U CN201921008585U CN210272699U CN 210272699 U CN210272699 U CN 210272699U CN 201921008585 U CN201921008585 U CN 201921008585U CN 210272699 U CN210272699 U CN 210272699U
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Abstract
The utility model provides a multifrequency array antenna, the utility model discloses a multifrequency array antenna can apply to 4G network and 5G network simultaneously, has greatly increased the reuse ratio of antenna, the utility model discloses a multifrequency array antenna fuses the group array each other 4G antenna FDD part and the TDD part of 5G antenna, can provide 4G network and 5G network function simultaneously; and simultaneously, the utility model discloses place the FDD part of 4G antenna at 5G antenna TDD part both sides, form compact structure, be located two reflecting plates under FDD antenna low frequency array and the reflecting plate that is located a plurality of TDD antenna array under exist the difference in height for the radiation that a plurality of TDD antenna array produced reduces two influence of FDD antenna low frequency array, can promote system isolation. Furthermore, the utility model discloses a high low frequency array of FDD part among the multifrequency array antenna adopts coaxial nested mode group array, shortens the length of antenna greatly, and the electrical property index is good.
Description
Technical Field
The utility model relates to the field of communication technology, concretely relates to multifrequency array antenna.
Background
With the rapid advance of society, mobile communication is rapidly developed, and in some fields, 4G communication cannot meet the requirements of people, so that 5G communication technology is produced. However, the occupancy rate of 4G communication in the market is still large at present, so that the coexistence of 4G network and 5G network has become the trend of industry development at present, but the 4G or 5G antenna is used alone, the cost and the occupied space are large, and the cost borne by the operator is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a FDD + TDD's multifrequency array antenna, it can supply different standard systems to use simultaneously to ensure that 4G network and 5G network coexist, mutually compatible provides 4G and 5G network function, and multifrequency array antenna adopts compact structure, reduces occupation space and the quantity of antenna again when lowering the cost.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a multi-frequency array antenna, the multi-frequency array antenna comprising: a reflective plate;
at least one high-frequency radiation unit a;
a plurality of rows of TDD antenna arrays and two rows of FDD antenna low frequency arrays which are arranged above the reflecting plate;
the two rows of FDD antenna low-frequency arrays are symmetrically arranged on the left side and the right side of the plurality of rows of TDD antenna arrays, each row of FDD antenna low-frequency array is composed of a plurality of low-frequency radiation units b, the high-frequency radiation units a can be selectively arranged right above, on the front side or on the rear side of at least one low-frequency radiation unit b, and the high-frequency radiation units a and the low-frequency radiation units b which are positioned right above the low-frequency radiation units b are coaxially arranged.
Furthermore, height difference exists between the reflecting plate located right below the two rows of FDD antenna low-frequency arrays and the reflecting plate located right below the plurality of rows of TDD antenna arrays, so that influence of radiation generated by the plurality of rows of TDD antenna arrays on the two rows of FDD antenna low-frequency arrays is reduced, and system isolation can be improved.
Furthermore, at most one high-frequency radiation unit a is arranged between two adjacent low-frequency radiation units b positioned on the same side of the plurality of rows of TDD antenna arrays.
Furthermore, the high-frequency radiation units a located on the same side of the plurality of rows of TDD antenna arrays are arranged at intervals and jointly form an FDD antenna high-frequency array arranged in parallel with any row of the TDD antenna arrays.
Furthermore, a plurality of TDD antenna arrays are arranged in parallel.
Furthermore, each row of the TDD antenna array is composed of a plurality of radiating elements c.
Furthermore, the radiation units c included in any two adjacent columns of the TDD antenna array are arranged in a staggered manner.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a multifrequency array antenna can apply to 4G network and 5G network simultaneously, greatly increased the reuse rate of antenna, its beneficial effect specifically as following several points:
1. the utility model discloses a multifrequency array antenna is different with the independent array of conventional 4G array antenna or 5G array antenna, the utility model discloses a multifrequency array antenna fuses the array each other with the TDD part of 4G antenna FDD part and 5G antenna, can provide 4G network and 5G network function simultaneously;
2. the utility model discloses a multifrequency array antenna places the FDD part of 4G antenna in 5G antenna TDD part both sides, forms compact structure, not only promotes the isolation between 4G network system and the 5G network system, realizes the miniaturized target of antenna again;
3. the high-low frequency array of the FDD part of the 4G antenna in the multi-frequency array antenna adopts a coaxial nesting mode to form an array, the length of the antenna is greatly shortened, and the electrical performance index is good;
4. the adjacent radiation units c of different arrays of the TDD antenna are arranged in a staggered mode, so that the coupling influence between the arrays is reduced, and the port isolation is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the present invention in embodiment 1;
FIG. 3 is a schematic structural view of the present invention in example 2;
fig. 4 is a schematic structural view of the present invention in embodiment 3;
the labels in the figure are: 1. the antenna comprises a reflecting plate 2, high-frequency radiating elements a and 3, a TDD antenna array 4, an FDD antenna low-frequency array 5, low-frequency radiating elements b and 6, an FDD antenna high-frequency array 7 and a radiating element c.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will combine the drawings in the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, a multi-frequency array antenna is characterized in that: the multi-frequency array antenna includes: a reflection plate 1;
at least one high-frequency radiation unit a 2;
a plurality of rows of TDD antenna arrays 3 and two rows of FDD antenna low-frequency arrays 4 which are arranged above the reflecting plate 1;
the two columns of FDD antenna low-frequency arrays 4 are symmetrically arranged on the left side and the right side of the several columns of TDD antenna arrays 3, each column of FDD antenna low-frequency array 4 is composed of several low-frequency radiating units b5, the high-frequency radiating unit a2 is selectively arranged right above, on the front side or on the rear side of at least one low-frequency radiating unit b5, and the high-frequency radiating unit a2 and the low-frequency radiating unit b5 which are positioned right above the low-frequency radiating unit b5 are coaxially arranged.
Further optimize this scheme, be located two reflecting plate 1 under FDD antenna low frequency array 4 and being located there is the difference in height between the reflecting plate 1 under a plurality of TDD antenna arrays 3, particularly, reflecting plate 1 under TDD antenna array 3 is a little higher than reflecting plate 1 under FDD antenna low frequency array 4 of its both sides, forms boss column structure for the radiation that a plurality of rows of TDD antenna arrays produced reduces two influence of FDD antenna low frequency array, can promote system isolation.
In order to further optimize the scheme, at most one high-frequency radiation element a2 is disposed between two adjacent low-frequency radiation elements b5 on the same side of the plurality of rows of TDD antenna arrays 3.
In a further optimized scheme, the high-frequency radiation units a2 located on the same side of the plurality of rows of TDD antenna arrays 3 are arranged at intervals and jointly form an FDD antenna high-frequency array 6 arranged in parallel with any row of the TDD antenna arrays 3.
Further optimizing the scheme, a plurality of rows of the TDD antenna arrays 3 are arranged in parallel.
Further optimizing the scheme, each row of the TDD antenna array 3 is composed of a plurality of radiation units c 7.
Further, in the optimized scheme, the radiation units c 7 included in any two adjacent rows of the TDD antenna array 3 are arranged in a staggered manner.
Example 1
The multi-frequency array antenna in the embodiment comprises a metal reflecting plate 1, 4 rows of TDD antenna arrays 3 and two rows of FDD antenna low-frequency arrays 4 which are arranged above the reflecting plate 1, wherein the 4 rows of TDD antenna arrays 3 are arranged in parallel, the two rows of FDD antenna low-frequency arrays 4 are symmetrically arranged on the left side and the right side of the 4 rows of TDD antenna arrays 3, each row of FDD antenna low-frequency array 4 consists of a plurality of low-frequency radiation units b5, a high-frequency radiation unit a2 is arranged right above and on the front side and the rear side of each low-frequency radiation unit b5, and a plurality of high-frequency radiation units a positioned on the same side form an FDD antenna; the high-frequency radiating unit a2 and the low-frequency radiating unit b5 are coaxially arranged, only one high-frequency radiating unit a2 is arranged between two adjacent low-frequency radiating units b5, and the high-frequency radiating unit and the low-frequency radiating unit adopt a coaxial nesting scheme, so that the length of the antenna is effectively shortened, and the antenna has good electrical performance.
The high-frequency radiating unit a nested in the low-frequency radiating unit b is placed on the middle platform of the low-frequency radiating unit b, so that the height difference of the high-frequency radiating unit and the low-frequency radiating unit is shortened, and the coupling influence generated between the high-frequency radiating unit and the low-frequency radiating unit is effectively reduced.
The FDD antenna low-frequency array 4 and the FDD antenna high-frequency array 6 are respectively arranged on two sides of the TDD antenna array, so that the boundary environment of the TDD antenna array is consistent, and the antenna beam forming and the electrical performance debugging are facilitated.
The TDD antenna array 3 adopts parallel array, and the arrays have consistency, which is beneficial to antenna beam forming and port index adjustment.
The FDD antenna part and the TDD antenna part adopt parallel array, and the TDD antenna part is arranged between the FDD two arrays to form a compact structure. Moreover, because the bottom surfaces of the FDD antenna part and the TDD antenna part reflecting plate have height difference, the radiation influence of the TDD antenna on the FDD antenna is reduced, the isolation between the systems can be further improved, and the array scheme is adopted, so that the width of the multi-frequency antenna only needs 499 mm.
Example 2
This example differs from example 1 in that: the radiation units c 7 included in any two adjacent rows of the TDD antenna array 3 are staggered, that is, the radiation units c 7 are staggered, so that the coupling effect between the arrays can be effectively reduced, and the system isolation is improved.
Example 3
This example differs from example 1 in that: a high-frequency radiation unit a2 is arranged right above and at the front side and the rear side of a low-frequency radiation unit b5 contained in only one row of the low-frequency array 4 of the FDD antenna, and a plurality of high-frequency radiation units a positioned at the same side form an FDD antenna high-frequency array 6; this embodiment is also the utility model discloses a derived group battle array mode, when providing 4G and 5G network function, reduces the antenna cost again.
The utility model discloses a multifrequency array antenna comprises FDD antenna and TDD antenna, and the FDD antenna low frequency channel is 698MHz ~ 960MHz or 617MHz ~ 894MHz, and the high frequency channel is 1427MHz ~ 2690MHz or 1710MHz ~ 2690MHz, and the TDD antenna frequency channel divide into two high and low frequency channels, supports the dual-frenquency system, and the low frequency channel is 2490MHz ~ 2690MHz, and the high frequency channel is 3300MHz ~ 3800 MHz.
The low-frequency radiation units b of the FDD antenna low-frequency array 4 and the high-frequency radiation units a of the FDD antenna high-frequency array 6 adopt a coaxial nesting scheme, the distance between the high-frequency radiation units a is about 0.8 times of the working wavelength of a central frequency point, and the distance between the low-frequency radiation units b is about 0.7 times of the working wavelength of the central frequency point. Two rows of coaxial arrays are arranged on the left side and the right side of the plurality of rows of TDD antenna arrays 3, the low-frequency radiation unit b and the high-frequency radiation unit a adopt a coaxial nesting scheme, the occupied space of the antenna in the vertical direction can be effectively reduced, the length of the multi-frequency antenna is shortened, and the multi-frequency antenna has good electrical performance.
The high-frequency radiation unit a2 of the FDD antenna high-frequency array 6 is embedded into the low-frequency radiation unit b5 of the FDD antenna low-frequency array 4, the high-frequency radiation unit a2 is placed on a middle platform of the low-frequency radiation unit b5 to form a high-frequency radiation unit and a low-frequency radiation unit which are placed up and down, and the oscillator arm of the low-frequency radiation unit b5 is used as the boundary of the high-frequency radiation unit a2, so that the horizontal plane wave width convergence of the high-frequency array antenna is facilitated, and the coupling strength of the high-frequency radiation unit and the.
The TDD antenna array 3 adopts 4 array arrays, the array unit spacing is about 0.7 times of the working wavelength of the low-frequency section central frequency point, and the column spacing is 0.5 times of the working wavelength of the low-frequency section central frequency point. Is arranged in the middle of the two columns of the FDD antenna low frequency arrays 4 so that the boundary environment thereof forms symmetry. Due to the fact that two-side environments of the TDD antenna part are symmetrical, adjustment of broadcasting beams is facilitated, and electric performance is stable.
The adjacent radiating elements of the 4 arrays of the TDD antenna array 3 in the horizontal direction are placed in a staggered manner, so that coupling influence generated between different arrays can be effectively reduced, and isolation between ports can be improved.
The utility model discloses a multifrequency array antenna adopts FDD antenna and TDD antenna coplane scheme, sets up FDD antenna part on TDD antenna part's both sides, forms compact structure, can reduce the occupation space on the horizontal direction, and effectively reduces between FDD antenna part and the TDD antenna part because the influence that cross coupling produced promotes the isolation between FDD antenna system and the TDD antenna part system.
The boundary environments of the four coaxial nested FDD antenna arrays are consistent, the structure is simple, and the antenna beam forming and the debugging of the electrical performance are facilitated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A multi-frequency array antenna, comprising: the multi-frequency array antenna includes:
a reflection plate (1);
at least one high-frequency radiation unit a (2);
a plurality of rows of TDD antenna arrays (3) and two rows of FDD antenna low-frequency arrays (4) are arranged above the reflecting plate (1);
the two rows of FDD antenna low-frequency arrays (4) are symmetrically arranged on the left side and the right side of the plurality of rows of TDD antenna arrays (3), each row of FDD antenna low-frequency array (4) is composed of a plurality of low-frequency radiation units b (5), the high-frequency radiation units a (2) can be selectively arranged right above, on the front side or on the rear side of at least one low-frequency radiation unit b (5), and the high-frequency radiation units a (2) located right above the low-frequency radiation units b (5) and the low-frequency radiation units b (5) are coaxially arranged.
2. The multi-frequency array antenna of claim 1, wherein: at most one high-frequency radiation unit a (2) is arranged between two adjacent low-frequency radiation units b (5) which are positioned on the same side of the plurality of rows of TDD antenna arrays (3).
3. A multi-frequency array antenna as claimed in claim 2, wherein: the high-frequency radiation units a (2) which are positioned on the same side of the plurality of rows of TDD antenna arrays (3) are arranged at intervals and jointly form an FDD antenna high-frequency array (6) which is arranged in parallel with any row of the TDD antenna arrays (3).
4. A multi-frequency array antenna as claimed in any one of claims 1 to 3, wherein: the plurality of rows of TDD antenna arrays (3) are arranged in parallel.
5. The multi-frequency array antenna of claim 4, wherein: each row of the TDD antenna array (3) consists of a plurality of radiation units c (7).
6. The multi-frequency array antenna of claim 5, wherein: the radiation units c (7) contained in any two adjacent columns of the TDD antenna array (3) are arranged in a staggered mode.
7. The multi-frequency array antenna of claim 1, wherein: height difference exists between the reflecting plate (1) which is positioned right below the two rows of FDD antenna low-frequency arrays (4) and the reflecting plate (1) which is positioned right below the plurality of rows of TDD antenna arrays (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921008585.6U CN210272699U (en) | 2019-07-01 | 2019-07-01 | Multi-frequency array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921008585.6U CN210272699U (en) | 2019-07-01 | 2019-07-01 | Multi-frequency array antenna |
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| CN210272699U true CN210272699U (en) | 2020-04-07 |
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| CN201921008585.6U Active CN210272699U (en) | 2019-07-01 | 2019-07-01 | Multi-frequency array antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380235A (en) * | 2019-07-01 | 2019-10-25 | 广东通宇通讯股份有限公司 | A kind of multi-frequency array antenna |
| CN113594718A (en) * | 2021-09-28 | 2021-11-02 | 华南理工大学 | Antenna array and wireless communication device |
-
2019
- 2019-07-01 CN CN201921008585.6U patent/CN210272699U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380235A (en) * | 2019-07-01 | 2019-10-25 | 广东通宇通讯股份有限公司 | A kind of multi-frequency array antenna |
| CN110380235B (en) * | 2019-07-01 | 2024-06-04 | 广东通宇通讯股份有限公司 | Multi-frequency array antenna |
| CN113594718A (en) * | 2021-09-28 | 2021-11-02 | 华南理工大学 | Antenna array and wireless communication device |
| CN113594718B (en) * | 2021-09-28 | 2022-01-07 | 华南理工大学 | Antenna array and wireless communication device |
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