Antenna and communication equipment

Abstract

The utility model relates to the field of radio frequency communication, and discloses an antenna and communication equipment, and the antenna comprises a radio frequency region and an antenna region which are stacked from bottom to top. The radio frequency area comprises a chip layer and a feed layer; the feed layer comprises a power division network, the power division network comprises a strip line and an isolation resistor, the isolation resistor is located between branches separated from each line in the strip line, and the isolation resistor adopts a conductive slurry film. The power division network in the antenna comprises the strip line and the isolation resistor, the isolation resistor adopts the conductive slurry film, and the conductive slurry film is simple in manufacturing process and low in cost, so that the manufacturing process of the antenna can be simplified, the manufacturing cost can be reduced, and the antenna is universal for single-beam and double-sided beam networks, a receiving network and a transmitting network.

Description

Technical Field

[0001] This application relates to the field of radio frequency communication, and particularly to an antenna and a communication device. Background Art

[0002] The antenna includes a stacked radio frequency region and an antenna region, and the antenna region is located at the top, that is, above the radio frequency region. The antenna can be divided into a receiving antenna and a transmitting antenna, corresponding to realizing the reception and radiation of signals. The power distribution network in the radio frequency region adopts a stripline structure. In the stripline structure, in order to meet the isolation requirement between different separated channels, buried resistors are arranged between the different separated channels. The buried resistors are costly and difficult to implement in engineering.

[0003] Therefore, how to solve the above technical problems should be the key concern of those skilled in the art. Utility Model Content

[0004] The purpose of this application is to provide an antenna and a communication device to improve the shielding effect of the antenna when outputting signals, simplify the manufacturing process of the antenna, and reduce the manufacturing cost.

[0005] To solve the above technical problems, this application provides an antenna, including: a radio frequency region and an antenna region stacked from bottom to top; the radio frequency region includes a chip layer and a feeding layer;

[0006] The feeding layer includes a power distribution network, and the power distribution network includes a stripline and isolation resistors. The isolation resistors are located between the branches separated from each line in the stripline, and the isolation resistors adopt conductive paste films.

[0007] Optionally, the chip layer includes a chip and a first microstrip line, and the chip includes a first signal port and a second signal port;

[0008] The total end of the power distribution network is connected to the radio frequency total port of the antenna, and the first signal port is connected to each branch end of the power distribution network;

[0009] The second signal port is connected to one end of a signal hole through the first microstrip line, and the other end of the signal hole is connected to the antenna region;

[0010] The antenna region includes antenna units, and first shielding holes are provided between adjacent antenna units; second shielding holes are provided around adjacent chips, third shielding holes are provided around the first microstrip line, and fourth shielding holes are provided on both sides of the stripline.

[0011] Optionally, the feeding layer further includes a radio frequency branch port;

[0012] The connection between the first signal port and each branch end of the power distribution network includes:

[0013] The first signal port is connected to one end of the RF splitting port through the first microstrip line, and the other end of the RF splitting port is connected to the splitting end of the power splitting network; or, the first signal port is directly connected to one end of the RF splitting port, and the other end of the RF splitting port is connected to the splitting end of the power splitting network.

[0014] Optionally, the feeding layer further includes a transition hole, and the transition hole is coaxial with the RF total port;

[0015] The connection between the total end of the power splitting network and the RF total port of the antenna includes:

[0016] The total end of the power splitting network is directly connected to one end of the transition hole, and the other end of the transition hole is connected to one end of the RF total port; the other end of the RF total port is used for electrical connection with an external RF source; or,

[0017] The feeding layer further includes a second microstrip line and a transition hole;

[0018] The connection between the total end of the power splitting network and the RF total port of the antenna includes:

[0019] One end of the RF total port of the antenna is connected to one end of the transition hole through the second microstrip line, and the other end of the transition hole is connected to the total end of the power splitting network.

[0020] Optionally, the transition hole, the RF splitting port and the fourth shielding hole have the same depth.

[0021] Optionally, it further includes:

[0022] A fifth shielding hole, and the fifth shielding hole is located outside the signal hole.

[0023] Optionally, the fifth shielding hole completely surrounds the signal hole; or, the fifth shielding hole is located on the side of the signal hole close to the signal hole in the adjacent antenna element.

[0024] Optionally, the fifth shielding hole and the second shielding hole penetrate the antenna in the thickness direction.

[0025] Optionally, it further includes:

[0026] A sixth shielding hole, and the sixth shielding hole is arranged along the circumferential direction of the RF splitting port; and / or, it further includes:

[0027] A seventh shielding hole, and the seventh shielding hole is arranged along the circumferential direction of the RF total port.

[0028] Optionally, at least one of the first shielding hole, the second shielding hole, the third shielding hole, and the fourth shielding hole is a hollow shielding hole. A metal layer is distributed on the inner wall of the hollow shielding hole, and a dielectric body is filled in the hollow area.

[0029] Optionally, the size of the antenna unit is less than half of the signal wavelength.

[0030] Optionally, the third shielding hole and the fourth shielding hole are at least two layers.

[0031] This application also provides a communication device including the antenna described in any one of the above.

[0032] An antenna provided by this application includes: a radio frequency region and an antenna region stacked from bottom to top; the radio frequency region includes a chip layer and a feeding layer; the feeding layer includes a power splitting network, the power splitting network includes a strip line and an isolation resistor, the isolation resistor is located between the branches separated from each line in the strip line, and the isolation resistor uses a conductive paste film.

[0033] It can be seen that in the antenna of this application, the power splitting network includes a strip line and an isolation resistor, and the isolation resistor uses a conductive paste film. The manufacturing process of the conductive paste film is simple and the cost is low, so that the manufacturing process of the antenna can be simplified, the manufacturing cost can be reduced, and it is universal for single-beam and double-sided beam networks, and for receiving networks and transmitting networks.

[0034] In addition, this application also provides a communication device having the above advantages. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions of the embodiments of this application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 A partial schematic diagram of a strip line provided by an embodiment of this application;

[0037] Figure 2 A cross-sectional view of an antenna provided by an embodiment of this application;

[0038] Figure 3 A top view of a transmitting antenna provided by an embodiment of this application;

[0039] Figure 4 A top view of a receiving antenna provided by an embodiment of this application;

[0040] In the figure, A is the radio frequency region, B is the antenna region, C is the signal trace region, D is the starting position region, 1 is the first shielding hole, 2 is the chip, 3 is the first microstrip line, 4 is the strip line, 5 is the power dividing network, 6 is the second shielding hole, 7 is the third shielding hole, 8 is the fourth shielding hole, 9 is the feeder layer, 10 is the slot layer, 11 is the radiation layer, 12 is the antenna radiator, 13 is the signal hole, 14 is the fifth shielding hole, 15 is the insulating layer, 16 is the ground wire, 17 is the isolation resistor, 18 is the radio frequency total port, 19 is the chip layer, 20 is the first hole, 21 is the signal inlet, 22 is the signal outlet, 23 is the second hole, 24 is the third hole, and 51 is the branch. Detailed implementation manners

[0041] In order to enable those skilled in the art to better understand the solution of this application, the following further details this application in conjunction with the accompanying drawings and specific implementation manners. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0042] In the following description, many specific details are set forth in order to fully understand this utility model. However, this utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of this utility model. Therefore, this utility model is not limited by the specific embodiments disclosed below.

[0043] As described in the background art section, in the antenna of the prior art, the resistor provided in the strip line is an embedded resistor, and the embedded resistor has a high cost and great difficulty in engineering implementation.

[0044] In view of this, this application provides an antenna. Please refer to Figures 1 to 2 , which includes a radio frequency region B and an antenna region A stacked from bottom to top; the radio frequency region B includes a chip layer 19 and a feeding layer;

[0045] The feeding layer includes a power dividing network 5. The power dividing network 5 includes a strip line 4 and an isolation resistor 17. The isolation resistor 17 is located between the branches 51 separated from each line in the strip line 4, and the isolation resistor 17 uses a conductive paste film.

[0046] The function of the power dividing network 5 is to perform power division, which can be divided into two. One line divides into two branches 51, as Figure 1 shown. The function of the conductive paste film is to isolate the two separated branches 51, and the resistance value can be above 100 ohms. The horizontal length of the conductive paste film can be half of the longitudinal width.

[0047] The material of the conductive paste film is conductive paste, which is formed by screen printing. The conductive paste film and the power divider network 5 are on the same layer and are of a non-embedded structure. The conductive paste film is laminated by insulating layers on the top and bottom.

[0048] Dig out a part at the starting position area D of the two branched paths 51 to form a triangle, which can make the isolation and return loss resonance points coincide more easily and the standing wave easier to adjust.

[0049] The antenna is a multi-layer stacked structure, such as Figure 2 shown. The antenna area A includes a feeder layer 9, a slot layer 10, and a radiation layer 11 distributed in sequence from bottom to top. The radio frequency area B includes a wiring area C and a ground wire 16 in addition to the chip layer 19 and the feeding layer. There are two layers of the ground wire 16. There is a layer of the ground wire 16 between the chip layer 19 and the power divider network 5, and there is a layer of the ground wire 16 between the power divider network 5 and the signal wiring area C. An insulating layer 15 is provided between the chip layer 19 and the ground wire 16 and between the ground wire 16 and the power divider network 5 respectively.

[0050] The materials of the ground wire 16 and the power divider network 5 are both metals (such as copper, etc.).

[0051] The antenna in this embodiment can be used as both a receiving antenna and a transmitting antenna, and can be selected according to the actual situation.

[0052] In the antenna of this embodiment, the power divider network 5 includes a strip line 4 and an isolation resistor 17. The isolation resistor 17 uses a conductive paste film. The manufacturing process of the conductive paste film is simple and the cost is low, so that the manufacturing process of the antenna can be simplified, the manufacturing cost can be reduced, and it is universal for single-beam and double-sided beam networks, and for receiving networks and transmitting networks.

[0053] On the basis of the above embodiment, in an embodiment of the present application, please refer to Figures 3 to 4 , the chip layer 19 includes a chip 2 and a first microstrip line 3, and the chip 2 includes a first signal port 21 and a second signal port 22;

[0054] The total end of the power divider network 5 is connected to the radio frequency total port 18 of the antenna, and the first signal port 21 is connected to each branch end of the power divider network 5;

[0055] The second signal port 22 is connected to one end of the signal hole 13 through the first microstrip line 3, and the other end of the signal hole 13 is connected to the antenna area A;

[0056] The antenna area A includes antenna units. A first shielding hole 1 is provided between adjacent antenna units; a second shielding hole 6 is provided around adjacent chips 2, a third shielding hole 7 is provided around the first microstrip line 3, and fourth shielding holes 8 are provided on both sides of the strip line 4.

[0057] The antenna unit includes an antenna radiator 12. The RF general port 18 is connected to an external RF source.

[0058] The second shielding hole 6 can penetrate the RF board to enhance the shielding effect. Alternatively, the second shielding hole 6 penetrates the feeder layer 9, the slot layer 10, and the radiation layer 11.

[0059] The second shielding hole 6 can correspond to Figure 2 the first hole 20 in (the second shielding hole 6 penetrates the feeder layer 9, the slot layer 10, and the radiation layer 11) or the third hole 24 (the second shielding hole 6 penetrates the RF board). When the antenna and the RF hole are not affected, the third hole 24 is used. When the antenna and the RF hole are affected, the first hole 20 is used.

[0060] The third shielding hole 7 can correspond to Figure 2 the second hole 23 in.

[0061] The number of layers of the third shielding hole 7 and the fourth shielding hole 8 can be one layer, or more than two layers.

[0062] It should be noted that in this embodiment, the types of the first shielding hole 1, the second shielding hole 6, the third shielding hole 7, and the fourth shielding hole 8 are not limited.

[0063] As an implementable manner, at least one of the first shielding hole 1, the second shielding hole 6, the third shielding hole 7, and the fourth shielding hole 8 is a hollow shielding hole, and a metal layer is distributed on the inner wall of the hollow shielding hole, wherein the metal layer is grounded.

[0064] As another implementable manner, at least one of the first shielding hole 1, the second shielding hole 6, the third shielding hole 7, and the fourth shielding hole 8 is a hollow shielding hole, a metal layer is distributed on the inner wall of the hollow shielding hole, and a dielectric body is filled in the hollow area, wherein the metal layer is grounded, and the dielectric body has the function of protecting the metal layer.

[0065] It should be pointed out that in this embodiment, the size of the antenna unit is not limited and can be set by itself.

[0066] As an implementable manner, the size of the antenna unit is less than half of the signal wavelength. During the scanning process of the large array antenna, the scanning angle can be increased to 70°, and even can be increased to 75°. Compared with the scanning angle of 60° of the phased array antenna in the prior art, the scanning angle in this application is greatly increased.

[0067] One of the first signal port 21 and the second signal port 22 is a signal inlet, and the other is a signal outlet, which is specifically determined according to the type of the antenna. The following will be elaborated respectively.

[0068] When the antenna is a transmitting antenna, such as Figure 3As shown, the first signal port 21 is a signal inlet, and the second signal port 22 is a signal outlet.

[0069] The RF signal enters through the RF main port 18 (corresponding to Figure 1 the position of the second hole 23 in [reference], and enters the power splitting network 5 through the main end of the power splitting network 5 for power splitting, thereby forming multiple signals. Each signal enters the chip 2 through a branch end of the power splitting network 5 to the first signal port 21. After passing through the power amplifier circuit integrated in the chip 2, the signal is output from the chip 2 through the second signal port 22. The output signal is transmitted to the signal hole 13 through the first microstrip line 3, then transmitted from the signal hole 13 to the feeder layer 9 of the transmitting antenna area A, and then coupled to the radiation layer 11 through the slot layer 10. Finally, the signal is radiated by the transmitting antenna. Figure 3 The chip 2 in [reference] includes eight RF signal outlets, namely four vertical polarization output ports and four horizontal polarization output ports.

[0070] The frequency band of the transmission signal of the transmitting antenna can be the KA band.

[0071] When the antenna is a receiving antenna, as Figure 4 shown, the first signal port 21 is a signal outlet, and the second signal port 22 is a signal inlet.

[0072] The RF signal is received by the antenna area A, then passes through the signal hole 13 to the first microstrip line 3, and then enters the chip 2 through the second signal port 22. After passing through the low-noise amplifier circuit integrated in the chip 2, the signal is output from the chip 2 through the first signal port 21, enters the power splitting network through each branch end of the power splitting network 5, and then the main end of the power splitting network 5 is transmitted to the RF main port 18. Figure 4 The chip 2 in [reference] includes eight RF signal inlets, namely four vertical polarization RF signal inlets and four horizontal polarization RF signal inlets.

[0073] It should be noted that in this embodiment, the connection manner between the first signal port 21 and each branch end of the power splitting network 5 is not limited and can be set according to actual situations.

[0074] As an implementable manner, the feeder layer further includes an RF branch port; the connection between the first signal port 21 and each branch end of the power splitting network 5 includes:

[0075] The first signal port 21 is connected to one end of the RF branch port through the first microstrip line 3, and the other end of the RF branch port is connected to the branch end of the power splitting network 5.

[0076] As another implementable manner, the feeder layer further includes an RF branch port; the connection between the first signal port 21 and each branch end of the power splitting network 5 includes:

[0077] The first signal port 21 is directly connected to one end of the RF splitting port, and the other end of the RF splitting port is connected to the branch end of the power distribution network 5.

[0078] A first shielding hole is provided between adjacent antenna elements. The first shielding hole can confine the RF signals in each antenna element and reduce the coupling between adjacent channels. Second shielding holes are provided around the chip, that is, second shielding holes are distributed between adjacent chips. The second shielding holes can reduce the coupling between adjacent channels of different chips and increase the isolation degree of adjacent channels of different chips. Third shielding holes are provided around the first microstrip line. The third shielding holes can confine the RF signals in the first microstrip line, reduce the coupling between adjacent channels in the same chip, and increase the isolation degree of adjacent channels in the same chip. Fourth shielding holes are provided on both sides of the feeding network. The fourth shielding holes can confine the signals transmitted in the feeding network.

[0079] Based on the above embodiments, in an embodiment of the present application, the feeding layer of the antenna further includes a transition hole, and the transition hole is coaxial with the RF main port 18.

[0080] The connection between the main end of the power distribution network 5 and the RF main port 18 of the antenna includes:

[0081] The main end of the power distribution network 5 is directly connected to one end of the transition hole, and the other end of the transition hole is connected to one end of the RF main port 18; the other end of the RF main port 18 is used for electrical connection with an external RF source; or,

[0082] The feeding layer further includes a second microstrip line and a transition hole;

[0083] The connection between the main end of the power distribution network 5 and the RF main port 18 of the antenna includes:

[0084] One end of the RF main port 18 of the antenna is connected to one end of the transition hole through the second microstrip line, and the other end of the transition hole is connected to the main end of the power distribution network 5.

[0085] The transition hole can correspond to Figure 2 the second hole 23 in

[0086] That is to say, there are two ways to connect the main end of the power distribution network 5 to the RF main port 18.

[0087] As an implementable manner, one end of the transition hole is directly connected to the main end of the power distribution network 5, and the other end is connected to one end of the RF main port 18.

[0088] When the antenna is a transmitting antenna, the RF signal reaches the transition hole from the RF main port 18, and then enters the main end of the power dividing network 5 through the transition hole. When the antenna is a receiving antenna, the signal entering the power dividing network 5 enters the transition hole from the main end, and then is transmitted to the RF main port 18 through the transition hole.

[0089] If the overall microstrip line feeding is adopted, coupling will occur between the surface microstrip lines. To avoid this situation, as another implementable way, one end of the RF main port 18 is connected to one end of the transition hole through the second microstrip line, and the other end of the transition hole is connected to the main end of the power dividing network 5.

[0090] When transmitting a signal, the signal enters the second microstrip line from the RF main port 18, then enters the strip line 4 in the power dividing network 5 through the transition hole, and then enters the chip through the first microstrip line 3.

[0091] Most of the signal transmission path passes through the strip line 4, reducing the loss and interference brought by the signal transmission through the microstrip line. At the same time, the good shielding effect generated by the design of the strip line 4 avoids the signal radiated by the antenna from re-entering the amplification link.

[0092] In an embodiment of the present application, the depths of the transition hole, the RF sub-port, and the fourth shielding hole 8 are the same, so that they can be manufactured together during the manufacturing process, reducing the processing difficulty of the process of the plate-making factory, and at the same time saving the board-making cost.

[0093] Based on any of the above embodiments, in an embodiment of the present application, the antenna further includes:

[0094] A fifth shielding hole 14, and the fifth shielding hole 14 is located outside the signal hole 13.

[0095] The fifth shielding hole 14 is located inside the third shielding hole 7, that is, between the signal hole 13 and the third shielding hole 7.

[0096] By setting the fifth shielding hole 14, the channel isolation degree can be further increased, and at the same time, the processing requirements are met.

[0097] It should be noted that in this embodiment, the distribution area of the fifth shielding hole 14 is not limited and can be set by itself.

[0098] As an implementable way, as Figure 3 shown, the fifth shielding hole 14 completely surrounds the signal hole 13. The fifth shielding hole 14 is in the form of a plum blossom pile, and the fifth shielding hole 14 and the signal hole 13 form a coaxial transition hole.

[0099] As another implementable way, as Figure 4As shown, the fifth shielding hole 14 is located on the side of the signal hole 13 closer to the signal hole 13 in the adjacent antenna unit.

[0100] As Figure 4 shown, taking the signal hole 13 in the vertical direction in the upper left corner antenna unit as an example, this signal hole 13 is closer to the signal hole 13 in the adjacent antenna unit on its right in the vertical direction and thus requires more shielding, and is farther from the signal hole 13 in the adjacent antenna unit on its left in the horizontal direction. Therefore, the fifth shielding hole 14 can be provided only in the area near the right side around this signal hole 13.

[0101] To improve the shielding effect of the fifth shielding hole 14, as an implementable manner, the fifth shielding hole 14 and the second shielding hole 6 penetrate the antenna in the thickness direction.

[0102] The fifth shielding hole 14 is a hollow shielding hole, and a metal layer is distributed on the inner wall of the fifth shielding hole 14, and this metal layer is grounded to achieve the shielding effect. To protect the metal layer on the inner wall of the fifth shielding hole 14, as an implementable manner, the hollow area of the fifth shielding hole 14 can be filled with a dielectric body.

[0103] Based on any of the above embodiments, in an embodiment of the present application, the antenna further further includes:

[0104] A sixth shielding hole, which is arranged along the circumference of the radio frequency branch port to shield the signal during transmission at the radio frequency branch port and avoid signal leakage.

[0105] Based on any of the above embodiments, in an embodiment of the present application, the antenna further further includes:

[0106] A seventh shielding hole, which is arranged along the circumference of the radio frequency main port 18 to shield the signal during transmission at the radio frequency main port 18 and avoid signal leakage.

[0107] Based on any of the above embodiments, in an embodiment of the present application, the third shielding hole 7 and the fourth shielding hole 8 are at least two layers to improve the shielding effect and reduce signal coupling.

[0108] The present application also provides a communication device, including the antenna described in any of the above embodiments.

[0109] In this specification, the various embodiments are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0110] The above has introduced the antenna and communication device provided by the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the solution and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. An antenna, characterized in that, Comprising: A radio frequency region (B) and an antenna region (A) stacked from bottom to top; the radio frequency region (B) includes a chip layer (19) and a feeding layer; The feeding layer includes a power dividing network (5), the power dividing network (5) includes a strip line (4) and isolation resistors (17), the isolation resistors (17) are located between branches (51) separated from each line in the strip line (4), and the isolation resistors (17) adopt conductive paste films.

2. The antenna according to claim 1, wherein The chip layer (19) includes a chip (2) and a first microstrip line (3), the chip (2) includes a first signal port (21) and a second signal port (22); The total end of the power dividing network (5) is connected to the radio frequency total port (18) of the antenna, and the first signal port (21) is connected to each branch end of the power dividing network (5); The second signal port (22) is connected to one end of a signal hole (13) through the first microstrip line (3), and the other end of the signal hole (13) is connected to the antenna region (A); The antenna region (A) includes antenna units, and first shielding holes (1) are provided between adjacent antenna units; second shielding holes (6) are provided around adjacent chips (2), third shielding holes (7) are provided around the first microstrip line (3), and fourth shielding holes (8) are provided on both sides of the strip line (4).

3. The antenna according to claim 2, wherein The feeding layer further includes radio frequency branch ports; The connection of the first signal port (21) to each branch end of the power dividing network (5) includes: The first signal port (21) is connected to one end of the radio frequency branch port through the first microstrip line (3), and the other end of the radio frequency branch port is connected to the branch end of the power dividing network (5); or, the first signal port (21) is directly connected to one end of the radio frequency branch port, and the other end of the radio frequency branch port is connected to the branch end of the power dividing network (5).

4. The antenna according to claim 2, wherein The feeding layer further includes transition holes, and the transition holes are coaxial with the radio frequency total port (18); The connection of the total end of the power dividing network (5) to the radio frequency total port (18) of the antenna includes: The total end of the power dividing network (5) is directly connected to one end of the transition hole, and the other end of the transition hole is connected to one end of the radio frequency total port (18); the other end of the radio frequency total port (18) is used for electrical connection with an external radio frequency source; or, The feeding layer further includes a second microstrip line and transition holes; The connection of the total end of the power dividing network (5) to the radio frequency total port (18) of the antenna includes: One end of the radio frequency total port (18) of the antenna is connected to one end of the transition hole through the second microstrip line, and the other end of the transition hole is connected to the total end of the power dividing network (5).

5. The antenna according to claim 4, wherein, The transition holes, radio frequency branch ports and the fourth shielding holes (8) have the same depth.

6. The antenna according to claim 2, wherein Further comprising: A fifth shielding hole (14), the fifth shielding hole (14) is located outside the signal hole (13).

7. The antenna according to claim 6, characterized in that, The fifth shielding hole (14) completely surrounds the signal hole (13); Or, the fifth shielding hole (14) is located on the side of the signal hole (13) close to the signal hole (13) in the adjacent antenna unit.

8. The antenna according to claim 6, wherein, The fifth shielding hole (14) and the second shielding hole (6) penetrate the antenna in the thickness direction.

9. The antenna according to claim 3, characterized in that Further included are: a sixth shielding hole, which is arranged along the circumferential direction of the RF branch port; and / or, further included is: a seventh shielding hole, which is arranged along the circumferential direction of the RF main port (18).

10. The antenna according to claim 2, characterized in that, At least one of the first shielding hole (1), the second shielding hole (6), the third shielding hole (7), and the fourth shielding hole (8) is a hollow shielding hole, a metal layer is distributed on the inner wall of the hollow shielding hole, and a dielectric body is filled in the hollow area.

11. The antenna according to claim 1, characterized in that, The size of the antenna element is less than half of the signal wavelength.

12. The antenna according to any one of claims 2 to 10, characterized in that, The third shielding hole (7) and the fourth shielding hole (8) are at least two layers.

13. A communication device, characterized in that, An antenna according to any one of claims 1 to 12 is included.

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