A dual-frequency dual-feed omnidirectional high-gain antenna, chip and wireless communication device

Abstract

The present application provides a dual-frequency dual-fed omnidirectional high-gain antenna, chip and wireless communication device, the antenna comprising a circuit board, at least two low-frequency dipole oscillators, at least two high-frequency dipole oscillators and a branch. The low-frequency dipole oscillator is arranged on the first surface of the circuit board, and the high-frequency dipole oscillator is arranged on the second surface of the circuit board. Adjacent low-frequency dipole oscillators are connected by a first transmission line. The low-frequency dipole oscillator comprises a first low-frequency dipole oscillator, and the first low-frequency dipole oscillator is electrically connected to the first feeder. The frequency of the signal transmitted by the high-frequency dipole oscillator is higher than the frequency of the signal transmitted by the low-frequency dipole oscillator. The first low-frequency dipole oscillator comprises a first dipole arm and a second dipole arm. The branch is arranged between the first dipole arm and the second dipole arm. The above-mentioned branch comprises an isolation portion extending along a second direction, and the second direction is perpendicular to the first direction. The branch is connected between the first transmission line and the first feeder.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and specifically to a dual-frequency dual-feed omnidirectional high-gain antenna, chip, and wireless communication device. Background Art

[0002] Compared to mobile networks, Wireless Fidelity (Wi-Fi) technology, which utilizes unlicensed wireless spectrum, inherently offers a low-cost advantage. As Wi-Fi signal speeds increase and become more widespread, the number of Wi-Fi devices in use is growing.

[0003] As the requirements for Wi-Fi signal rates become increasingly higher, the transmission rate of the antenna's 2.4G frequency band can no longer meet market demand. Therefore, dual-band antennas that combine the 2.4G frequency band and the 5G frequency band have been promoted. The dual-band antenna includes a low-frequency oscillator for transmitting 2.4G signals and a high-frequency oscillator for transmitting 5G signals. The low-frequency oscillator and the high-frequency oscillator are arranged on both sides of the printed circuit board. However, although the dual-band antenna can support signal transmission in two frequency bands, the high-frequency oscillator and the low-frequency oscillator located on both sides of the printed circuit board are also prone to crosstalk, and the signal isolation of the dual-band antenna is poor. Summary of the Invention

[0004] The present application provides a dual-frequency dual-feed omnidirectional high-gain antenna, a chip and a wireless communication device. The antenna has a high degree of isolation of different-frequency signals, and the wireless communication device has a good communication effect.

[0005] In a first aspect, the dual-frequency dual-fed omnidirectional high-gain antenna provided by the present application includes a circuit board, at least two low-frequency dipole elements, at least two high-frequency dipole elements, and a branch. The two opposite surfaces of the above-mentioned circuit board are respectively a first surface and a second surface. At least two low-frequency dipole elements are arranged on the first surface of the above-mentioned circuit board. Specifically, the at least two low-frequency dipole elements are arranged in sequence on the second surface along the first direction. Any adjacent low-frequency dipole elements are connected by a first transmission line. The at least two low-frequency dipole elements include a first low-frequency dipole element, which is located at the end of the antenna and is electrically connected to the first feeder to achieve signal transmission. At least two high-frequency dipole elements are arranged on the second surface of the above-mentioned circuit board. The at least two high-frequency dipole elements are arranged in sequence on the second surface along the first direction. Any adjacent high-frequency dipole elements are electrically connected by a second transmission line. At least two high-frequency dipole elements include a first high-frequency dipole element, located at the end of the antenna and electrically connected to the second feeder, thereby enabling signal transmission. The frequency of the signal transmitted by the high-frequency dipole element is higher than the frequency of the signal transmitted by the low-frequency dipole element. The first low-frequency dipole element includes a first dipole arm and a second dipole arm arranged along a first direction. The antenna branch is disposed between the first dipole arm and the second dipole arm. The branch has an isolation portion extending in a second direction perpendicular to the first direction, that is, the isolation portion completely isolates the first dipole arm from the second dipole arm. The branch is connected between the first transmission line and the first feeder. The isolation portion forms a high-impedance state between the first dipole arm and the second dipole arm. Regarding the first low-frequency dipole element, the isolation portion prevents high-frequency energy on the second surface of the circuit board from coupling to the first surface at the port, thereby reducing crosstalk between the elements on both sides of the circuit board. The isolation between the high-frequency dipole element and the low-frequency dipole element at the port is improved to achieve the purpose of improving the performance of the antenna.

[0006] The branch can be specifically a T-shaped branch. The T-shaped branch includes an isolation portion and a connection portion, wherein the isolation portion extends in two directions and the connection portion extends in a first direction. The first transmission line is connected to the isolation portion, and the first feeder is connected to the connection portion. Alternatively, the first transmission line is connected to the connection portion, and the first feeder is connected to the isolation portion. This solution facilitates connecting the branch to other structures.

[0007] One of the first transmission line and the second transmission line may be a coplanar microstrip transmission line. The coplanar microstrip transmission line may be prepared on the surface of the circuit board by printing, thereby reducing costs.

[0008] In addition, in order to prevent both sides of the circuit board from being coplanar microstrip transmission lines, which would cause obvious crosstalk, one of the first transmission line and the second transmission line can be a coplanar microstrip transmission line, and the other can be a coaxial jumper.

[0009] When the first transmission line is a coplanar microstrip transmission line, the coplanar microstrip transmission line has a first hollow structure. This first hollow structure forms a high-frequency stopband, thereby reducing crosstalk between the high-frequency dipole element's signal and the low-frequency dipole element's signal. Furthermore, the provision of the first hollow structure in the coplanar microstrip transmission line also facilitates the transmission of low-frequency signals. Therefore, this solution improves the isolation between the high-frequency dipole element and the low-frequency dipole element, and can also increase the gain of the antenna.

[0010] The specific shape of the first hollow structure is not limited and may be a U-shaped first hollow structure, so that more first hollow structures can be provided along the extension direction of the coplanar microstrip transmission line to enhance the decoupling effect for high-frequency signals.

[0011] The total length of the first hollow structure is half the wavelength of the high-frequency dipole element's dielectric. This structure can specifically reduce interference from high-frequency signals and form a high-frequency stopband on the coplanar microstrip transmission line. This makes the high-frequency radiation pattern of the dual-band dual-fed omnidirectional antenna more regular, thus solving the problem of distorted cross-frequency radiation patterns.

[0012] When specifically configuring a coplanar microstrip transmission line, the second transmission line can be a coplanar microstrip transmission line having a second hollow structure. This second hollow structure forms a low-frequency stopband, thereby reducing crosstalk between the low-frequency dipole element's signal and the high-frequency dipole element's signal. Furthermore, providing the second hollow structure in the coplanar microstrip transmission line facilitates the transmission of high-frequency signals. Therefore, this solution improves the isolation between the high-frequency dipole element and the low-frequency dipole element, and can also increase the gain of the antenna.

[0013] The specific shape of the second hollow structure is not limited and may be a U-shaped second hollow structure, so that more second hollow structures can be provided along the extension direction of the coplanar microstrip transmission line to enhance the decoupling effect for low-frequency signals.

[0014] The total length of the second hollow structure is half the wavelength of the dielectric medium of the low-frequency dipole element. This second hollow structure can specifically reduce interference from high-frequency signals and form a low-frequency stopband on the coplanar microstrip transmission line. This makes the low-frequency radiation pattern of the dual-band dual-fed omnidirectional antenna more regular, thus solving the problem of distorted cross-frequency radiation patterns.

[0015] Specifically, when the low-frequency dipole element is configured, the dipole arm of the low-frequency dipole element has a third hollow structure, which can form a high-frequency stop band, thereby increasing the gain of the antenna and improving the isolation between the high-frequency dipole element and the low-frequency dipole element.

[0016] When the third hollow structure is specifically provided, the specific shape of the third hollow structure is not limited, and it can be a U-shaped third hollow structure. Since the total length of the third hollow structure is generally fixed, when the dipole arm of the low-frequency dipole is provided with the U-shaped third hollow structure, a large number of U-shaped third hollow structures can be provided to enhance the decoupling effect and increase the gain of the antenna.

[0017] The total length of the third hollow structure is half the wavelength of the high-frequency dipole element's dielectric. This solution allows the third hollow structure to specifically reduce interference generated by the high-frequency dipole element. Furthermore, each low-frequency dipole element includes the third hollow structure, thereby making the high-frequency pattern of the dual-band dual-fed omnidirectional antenna more regular, thus solving the problem of distorted cross-frequency patterns.

[0018] When specifically configuring the high-frequency dipole oscillator, the high-frequency dipole oscillator includes a third oscillator arm and a fourth oscillator arm arranged along a first direction. The third oscillator arm has a first serration on the side facing the fourth oscillator arm, and the fourth oscillator arm has a second serration on the side facing the third oscillator arm. The first serration and the second serration are coupled, that is, the third oscillator arm and the fourth oscillator arm of the high-frequency dipole oscillator are serration-coupled. This solution provides a better coupling degree between the third oscillator arm and the fourth oscillator arm, as well as better degrees of freedom and matching. This improves the energy conversion efficiency of the high-frequency dipole oscillator, which is beneficial for increasing gain.

[0019] In a specific technical solution, the first surface of the above-mentioned circuit board arranges the first low-frequency dipole vibrator and the second low-frequency dipole vibrator in sequence along the first direction, and the second surface arranges the first high-frequency dipole vibrator, the second high-frequency dipole vibrator, the third high-frequency dipole vibrator and the fourth high-frequency dipole vibrator in sequence along the second direction. The center of the above-mentioned first low-frequency dipole vibrator overlaps with the center of the first high-frequency dipole vibrator, and the center of the second low-frequency dipole vibrator overlaps with the center of the third high-frequency dipole vibrator. There is no restriction on the positions of the above-mentioned second high-frequency dipole vibrator and the fourth high-frequency dipole vibrator, and the four high-frequency dipole vibrators can be evenly distributed or unevenly distributed. Using this solution to layout the low-frequency dipole vibrators and the high-frequency dipole vibrators is conducive to saving space for the antenna.

[0020] In a second aspect, the present application provides a wireless communication device. The specific type of the wireless communication device is not limited. It only needs to have the dual-frequency dual-fed omnidirectional high-gain antenna in the above technical solution and use the dual-frequency dual-fed omnidirectional high-gain antenna to achieve wireless communication. Specifically, the above-mentioned wireless communication device can be a device such as a router and a set-top box. The above-mentioned wireless communication device includes a housing, a control circuit and the dual-frequency dual-fed omnidirectional high-gain antenna provided in the above-mentioned first aspect. The above-mentioned control circuit and the dual-frequency dual-fed omnidirectional high-gain antenna are arranged in the housing, and the control circuit and the dual-frequency dual-fed omnidirectional high-gain antenna are electrically connected. Since the dual-frequency dual-fed omnidirectional high-gain antenna has a high isolation and a high gain, the communication effect of the wireless communication device is better.

[0021] In a third aspect, the present application provides a chip comprising a control circuit and a dual-band, dual-fed, omnidirectional, high-gain antenna according to any of the above technical solutions. The control circuit is electrically connected to the dual-band, dual-fed, omnidirectional, high-gain antenna, which is used to transmit input and output signals of the control circuit. In this solution, the dual-band, dual-fed, omnidirectional, high-gain antenna has high isolation and high gain, thus improving communication performance of the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a side structural diagram of a dual-frequency dual-fed omnidirectional high-gain antenna in an embodiment of the present application;

[0023] Figure 2 This is a structural diagram of the first surface of the dual-frequency dual-feed omnidirectional high-gain antenna in an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of the second surface of the dual-frequency dual-feed omnidirectional high-gain antenna in an embodiment of the present application;

[0025] Figure 4 for Figure 2 A partial enlarged view of point A in the middle;

[0026] Figure 5 This is another structural diagram of the second surface of the dual-band dual-feed omnidirectional high-gain antenna in an embodiment of the present application;

[0027] Figure 6 This is another structural schematic diagram of the first surface of the dual-band dual-feed omnidirectional high-gain antenna in an embodiment of the present application;

[0028] Figure 7 This is another structural schematic diagram of the second surface of the dual-band dual-feed omnidirectional high-gain antenna in an embodiment of the present application;

[0029] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0030] Figure 9 The in-band pattern of the low-frequency signal in the vertical plane when the low-frequency gain of the antenna in the embodiment of the present application reaches 4.6 dBi;

[0031] Figure 10 The in-band pattern of the high-frequency signal in the vertical plane when the high-frequency gain of the antenna in the embodiment of the present application reaches 8.26 dBi;

[0032] Figure 11 Graph showing the relationship between the S parameters and operating frequency of the antenna in an embodiment of the present application;

[0033] Figure 12 The in-band pattern of the low-frequency signal in the vertical plane when the low-frequency gain of the antenna in the embodiment of the present application reaches 4.4 dBi;

[0034] Figure 13 This is the in-band radiation pattern of the high-frequency signal in the vertical plane when the high-frequency gain of the antenna in the embodiment of the present application reaches 8.43dBi;

[0035] Figure 14 Graph showing the relationship between the S parameters and operating frequency of the antenna in the embodiment of the present application.

[0036] Reference numerals:

[0037] 1-circuit board; 11-first surface;

[0038] 12-second surface; 2-low-frequency dipole oscillator;

[0039] 21-first low-frequency dipole oscillator; 211-first oscillator arm;

[0040] 212 - second dipole arm; 22 - second low-frequency dipole oscillator;

[0041] 23-third hollow structure; 3-high-frequency dipole oscillator;

[0042] 31-first high-frequency dipole oscillator; 32-second high-frequency dipole oscillator;

[0043] 33-third high-frequency dipole oscillator; 34-fourth high-frequency dipole oscillator;

[0044] 35-third pendulum arm; 351-first sawtooth portion;

[0045] 36- fourth pendulum arm; 361- second sawtooth portion;

[0046] 4-first transmission line; 5-first feeder line;

[0047] 6-second transmission line; 7-second feeder line;

[0048] 8-branch; 81-isolation;

[0049] 82-connection portion; 10-coplanar microstrip transmission line;

[0050] 101-first hollow structure; 102-second hollow structure;

[0051] 20-coaxial jumper wires. DETAILED DESCRIPTION

[0052] To facilitate understanding of the dual-band dual-fed omnidirectional high-gain antenna, chip, and wireless communication device provided in the embodiments of the present application, the following describes its application scenarios. With the development of wireless communication technology, the performance requirements for antennas are becoming increasingly higher. The above-mentioned antennas are usually provided in wireless communication devices, which are increasingly widely used in production and life. The performance of the antenna plays a decisive role in the performance of the wireless communication devices. In order to make the antenna have a better signal rate, there is a dual-band antenna in the prior art. Dual-band antennas usually prepare a 2.4G vibrator on one side of a printed circuit board and a 5G vibrator on the other side. During operation, the vibrators of the two frequency bands may couple signals, resulting in low isolation of the antenna, low gain, and distorted radiation patterns.

[0053] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the", and "this" are intended to also include expressions such as "one or more", unless the context clearly indicates otherwise.

[0054] References in this specification to "one embodiment" or "a specific embodiment" mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. The terms "including," "comprising," "having," and their variations all mean "including but not limited to," unless otherwise specifically stated.

[0055] Figure 1 This is a side view of the dual-frequency dual-fed omnidirectional high-gain antenna in an embodiment of the present application. Figure 1As shown, the dual-band dual-fed omnidirectional high-gain antenna includes a circuit board, which includes a first surface 11 and a second surface 12 that are separated from each other. The first surface 11 is provided with at least two low-frequency dipole elements 2, and the second surface 12 is provided with at least two high-frequency dipole elements 3. The at least two low-frequency dipole elements 2 are arranged in sequence on the first surface 11 along a first direction M, and the at least two high-frequency dipole elements 3 are arranged in sequence on the second surface 12 along the first direction M. The first direction M can specifically be the extension direction of the antenna. In other words, the low-frequency dipole elements 2 and the high-frequency dipole elements 3 are respectively provided on the two side surfaces of the circuit board of the dual-band dual-fed omnidirectional high-gain antenna.

[0056] Figure 2 This is a structural diagram of the first surface of the dual-frequency dual-fed omnidirectional high-gain antenna in an embodiment of the present application, as shown in FIG. Figure 1 and Figure 2 As shown, the first surface 11 of the above-mentioned circuit board is provided with a first low-frequency dipole element 21, a second low-frequency dipole element 22, ... and an nth low-frequency dipole element in sequence along a first direction M, where n is a positive integer of at least 2. Adjacent low-frequency dipole elements 2 are electrically connected via a first transmission line 4, that is, the first low-frequency dipole element 21 and the second low-frequency dipole element 22 are electrically connected via a first transmission line 4, and the n-1th low-frequency dipole element and the nth low-frequency dipole element are electrically connected via another first transmission line 4. All low-frequency dipole elements 2 are connected in sequence, and adjacent low-frequency dipole elements 2 are electrically connected via a first transmission line 4. Specifically, when the antenna includes n low-frequency dipole elements 2, it includes n-1 first transmission lines 4. The first low-frequency dipole oscillator 21 is located at the feeding end and is electrically connected to the first feeder 5 . Specifically, the first transmission line 4 and the first feeder 5 are electrically connected via the first low-frequency dipole oscillator 21 to achieve signal transmission.

[0057] Figure 3 This is a structural diagram of the second surface of the dual-frequency dual-fed omnidirectional high-gain antenna in an embodiment of the present application, as shown in FIG. Figure 1 and Figure 3As shown, the second surface 12 of the above-mentioned circuit board is sequentially provided with the first high-frequency dipole element 31, the second high-frequency dipole element 32, ... the mth high-frequency dipole element along the first direction M, where m is a positive integer of at least 2. Adjacent high-frequency dipole elements 3 are electrically connected via a second transmission line 6, that is, the first high-frequency dipole element 31 is electrically connected to the second high-frequency dipole element 32 via a second transmission line 6, and the m-1th high-frequency dipole element is electrically connected to the mth high-frequency dipole element via another second transmission line 6. All high-frequency dipole elements 3 are connected in sequence, and adjacent high-frequency dipole elements 3 are electrically connected via a second transmission line 6. Specifically, when the antenna includes m high-frequency dipole elements 2, it includes m-1 second transmission lines 6. The first high-frequency dipole oscillator 31 is located at the feeding end. One end of the first high-frequency dipole oscillator 32 is electrically connected to the second transmission line 6, and the other end is electrically connected to the second feeder 7. Specifically, the second feeder 7 and the second transmission line 6 are electrically connected through the first high-frequency dipole oscillator 32 to realize signal transmission.

[0058] Specifically, the frequency of the signal transmitted by the low-frequency dipole element 2 is lower than the frequency of the signal transmitted by the high-frequency dipole element 3. For example, the frequency of the signal transmitted by the low-frequency dipole element 2 can be in the 2.4 GHz frequency band, such as between 2.4 GHz and 2.5 GHz; and the frequency of the signal transmitted by the high-frequency dipole element 3 can be in the 5 GHz frequency band, such as between 5.1 GHz and 5.9 GHz. Of course, the specific operating frequency of the dual-band dual-fed omnidirectional high-gain antenna can be scaled down accordingly based on actual needs.

[0059] Figure 4 for Figure 2 A local enlarged view of point A in the figure, such as Figure 4 As shown, the first low-frequency dipole element 21 includes a first dipole arm 211 and a second dipole arm 212 arranged along a first direction M. The first dipole arm 211 and the second dipole arm 212 are used to radiate electromagnetic waves. The first transmission line 4, the first feed line 5, and the transverse connection between the first dipole arm 211 and the second dipole arm 212 are used to transmit signal energy. A branch 8 is provided between the first dipole arm 211 and the second dipole arm 212. The branch 8 has an isolation portion 81 extending along a second direction N. The second direction N is perpendicular to the first direction M. In other words, the isolation portion 81 isolates the first dipole arm 211 and the second dipole arm 212 along the first direction M, forming a high-impedance state. This prevents high-frequency energy from the second surface 12 of the circuit board from coupling to the first surface 11 at the port, reduces crosstalk between the dipole elements on both sides of the circuit board, and improves the isolation between the high-frequency dipole element 3 and the low-frequency dipole element 2 at the port, forming a high-gain omnidirectional design for the antenna, achieving the purpose of improving antenna performance.

[0060] Figure 5 FIG. 1 is another structural diagram of the second surface of the dual-frequency dual-feed omnidirectional high-gain antenna in the embodiment of the present application. Figure 5 As shown, in another technical solution, the second surface 12 of the circuit board 1 of the antenna may also be provided with a branch 8. Specifically, the first high-frequency dipole oscillator 31 includes a third dipole arm 35 and a fourth dipole arm 36 arranged along the first direction M. Similarly, the third dipole arm 35 and the fourth dipole arm 36 are used to radiate electromagnetic waves. The second transmission line 6, the second feeder 7, and the transverse connection between the third dipole arm 35 and the fourth dipole arm 36 are used to transmit signal energy. A branch 8 may also be provided between the third dipole arm 35 and the fourth dipole arm 36, and the branch 8 has a second isolation portion 81 extending along the second direction N. The second direction N is perpendicular to the first direction M. That is to say, the above-mentioned isolation portion 81 isolates the third dipole arm 35 and the fourth dipole arm 36 along the first direction M to form a high-impedance state, thereby suppressing the low-frequency energy of the first surface 11 of the circuit board 1 from coupling to the second surface 12 at the port, reducing the crosstalk of the dipoles on both sides of the circuit board, and improving the isolation between the high-frequency dipole dipole 3 and the low-frequency dipole 2 at the port, forming a high-gain omnidirectional design of the antenna, and achieving the purpose of improving the performance of the antenna.

[0061] Please continue to refer to Figure 4 When the above-mentioned branch 8 is specifically set, the above-mentioned branch 8 can also be a T-shaped branch 8. That is, the branch 8 also includes a connecting portion 82 perpendicular to the isolation portion 81. The above-mentioned isolation portion 81 is connected to the first transmission line 4, and the connecting portion 82 is connected to the first feeder 5. Alternatively, the above-mentioned first transmission line 4 is connected to the connecting portion 82, and the first feeder 5 is connected to the isolation portion 81. In this solution, by setting the connecting portion 82, it is convenient to connect the T-shaped branch 8 to the first transmission line 4 and the first feeder 5. Specifically, the first transmission line 4 can be welded to the isolation portion 81, and the first feeder 5 can be connected to the connecting portion 82.

[0062] When the first transmission line and the second transmission line are specifically arranged, the first transmission line can be a coplanar microstrip transmission line, or the second transmission line can be a coplanar transmission line. Coplanar transmission lines are directly printed on the surface of the circuit board, which is conducive to reducing costs.

[0063] Specifically, such as Figure 2 and Figure 3 As shown, the second transmission line 6 is a coplanar microstrip transmission line 10, and the first transmission line 4 is a coaxial jumper 20. Alternatively, Figure 6 Schematic diagram of another structure of the first surface of the dual-frequency dual-feed omnidirectional high-gain antenna in an embodiment of the present application, Figure 7 FIG. 1 is another structural diagram of the second surface of the dual-frequency dual-feed omnidirectional high-gain antenna in an embodiment of the present application. Figure 6 and Figure 7As shown, the first transmission line 4 is a coplanar microstrip transmission line 10, and the second transmission line 6 is a coaxial jumper 20. In this solution, only one side of the circuit board is a coplanar microstrip transmission line 10, thereby avoiding the situation where both sides are coplanar microstrip transmission lines 10, which would cause severe crosstalk.

[0064] For details, please refer to Figure 6 and Figure 7 In one embodiment, the first transmission line 4 is a coplanar microstrip transmission line 10, and the second transmission line 6 is a coaxial jumper 20. That is, the coplanar microstrip transmission line 10 is located on the side where the low-frequency dipole element 2 is located. The above-mentioned coplanar microstrip transmission line 10 has a first hollow structure 101. Specifically, the above-mentioned first hollow structure 101 is slit-shaped, that is, the width of the first hollow structure 101 is relatively small. The first hollow structure 101 forms a high-frequency stop band, which can be specifically a stop band of 5.1GHz to 5.9GHz. In addition, the high-frequency energy generated by the high-frequency dipole element 3 is blocked from coupling to the first surface 11, thereby reducing the crosstalk to the signal of the low-frequency dipole element 2. In addition, the provision of the first hollow structure in the above-mentioned coplanar microstrip transmission line is also conducive to the transmission of low-frequency signals. Therefore, this solution improves the isolation between the high-frequency dipole element 3 and the low-frequency dipole element 2, and can also improve the gain of the antenna.

[0065] When the above-mentioned first hollow structure 101 is specifically set, the first hollow structure 101 can be specifically a U-shaped first hollow structure 101, so that more first hollow structures 101 can be set along the extension direction of the coplanar microstrip transmission line 10 to enhance the decoupling effect of the coplanar microstrip transmission line 10 on the side where the low-frequency dipole oscillator 2 is located for high-frequency signals.

[0066] The total length of the first hollow structure 101 is half the wavelength of the medium of the high-frequency dipole oscillator 3. Specifically, when the first hollow structure 101 is a linear first hollow structure 101, the total length of the first hollow structure 101 is the length of the linear first hollow structure 101. When the first hollow structure 101 is a U-shaped first hollow structure 101, the total length of the first hollow structure 101 is the sum of the lengths of the two long sides and the length of one short side of the U-shaped first hollow structure 101. This solution can form a stop band for high frequencies on the coplanar microstrip transmission line 10, making the high-frequency radiation pattern of the dual-band dual-fed omnidirectional antenna more regular, thereby solving the problem of deformed different-frequency radiation patterns.

[0067] Please refer to Figure 2 and Figure 3In another embodiment, the first transmission line 4 is a coaxial jumper 20, and the second transmission line 6 is a coplanar microstrip transmission line 10. That is, the coplanar microstrip transmission line 10 is located on the side where the high-frequency dipole element 3 is located. The above-mentioned coplanar microstrip transmission line 10 has a second hollow structure 102. Specifically, the above-mentioned second hollow structure 102 is slit-shaped, that is, the width of the second hollow structure 102 is relatively small. The second hollow structure 102 forms a low-frequency stop band, which can be specifically a stop band of 2.4GHz to 2.5GHz, thereby blocking the low-frequency energy generated by the low-frequency dipole element 2 from coupling to the second surface 12, thereby reducing the crosstalk of the low-frequency signal to the signal of the high-frequency dipole element 3. In addition, the setting of the above-mentioned second hollow structure 102 is also conducive to the transmission of high-frequency signals. Therefore, this solution improves the isolation between the low-frequency dipole element 2 and the high-frequency dipole element 3, and can also improve the gain of the antenna.

[0068] When the second hollow structure 102 is specifically set, the second hollow structure 102 can be specifically a U-shaped second hollow structure 102, so that more second hollow structures 102 can be set along the extension direction of the coplanar microstrip transmission line 10 to enhance the decoupling effect of the high-frequency dipole oscillator 3 on the low-frequency signal.

[0069] The total length of the second hollow structure 102 is half the wavelength of the medium of the low-frequency dipole element 2. Specifically, when the second hollow structure 102 is a linear second hollow structure 102, the total length of the second hollow structure 102 is the length of the linear second hollow structure 102. When the second hollow structure 102 is a U-shaped second hollow structure 102, the total length of the second hollow structure 102 is the sum of the lengths of the two long sides and the length of one short side of the U-shaped second hollow structure 102. This solution can form a stop band for low frequencies on the coplanar microstrip transmission line 10, making the low-frequency radiation pattern of the dual-band dual-fed omnidirectional antenna more regular, thereby solving the problem of distorted cross-frequency radiation patterns.

[0070] Please combine Figure 2 and Figure 4 In a specific embodiment, the vibrator arm of the low-frequency dipole vibrator 2 has a third hollow structure 23. Specifically, the third hollow structure 23 is in the shape of a slit, that is, the width of the third hollow structure 23 is relatively small. The third hollow structure 23 forms a high-frequency stop band, thereby blocking the high-frequency energy generated by the high-frequency dipole vibrator 3 from coupling to the first surface 11, so that the high-frequency energy generated by the high-frequency dipole vibrator 3 remains stable, and the influence of the low-frequency dipole vibrator 2 is relatively low, which is conducive to improving the stability of the high-frequency directional pattern and the gain of the high-frequency energy. In addition, this solution can also reduce the crosstalk of the energy generated by the high-frequency dipole vibrator 3 on the signal of the low-frequency dipole vibrator 2, and improve the isolation between the high-frequency dipole vibrator 3 and the low-frequency dipole vibrator 2.

[0071] like Figure 2 and Figure 4 As shown, when the above-mentioned third hollow structure 23 is specifically set, the third hollow structure 23 can be specifically a U-shaped third hollow structure, so that more third hollow structures 23 can be set along the extension direction of the vibrator arm of the low-frequency dipole vibrator 2 to enhance the decoupling effect of the low-frequency dipole vibrator 2 for high-frequency signals.

[0072] The total length of the third hollow structure 23 is half the wavelength of the medium of the high-frequency dipole element 3. Specifically, when the third hollow structure 23 is a linear third hollow structure 23, the total length of the third hollow structure 23 is the length of the linear third hollow structure. When the third hollow structure is a U-shaped third hollow structure, the total length of the third hollow structure 23 is the sum of the lengths of the two long sides and one short side of the U-shaped third hollow structure. This solution can form a stop band for high frequencies on the dipole arm of the low-frequency dipole element 2. The dipole arm of each low-frequency dipole element 2 has a third hollow structure 23, so that the high-frequency radiation pattern of the dual-band dual-fed omnidirectional antenna is more regular, so as to solve the problem of deformed different-frequency radiation patterns.

[0073] Figure 8 for Figure 7 Please refer to the enlarged view of the part at B in the middle. Figure 8 The high-frequency dipole element 3 includes a third dipole arm 35 and a fourth dipole arm 36. The third dipole arm 35 has a first serration 351 on the side facing the fourth dipole arm 36, and the fourth dipole arm 36 has a second serration 361 on the side facing the third dipole arm 35. The coupling of the first serration 351 and the second serration 361 improves the coupling between the third dipole arm 35 and the fourth dipole arm 36, thereby improving the degree of freedom and matching. This improves the energy conversion efficiency of the high-frequency dipole element 3 and contributes to increased gain.

[0074] Please refer to Figures 1 to 3In a specific embodiment, the first surface 11 of the circuit board of the dual-band dual-fed omnidirectional high-gain antenna has two low-frequency dipole elements 2, and the second surface 12 has four high-frequency dipole elements 3. Specifically, the first surface 11 of the circuit board has a first low-frequency dipole element 21 and a second low-frequency dipole element 22 arranged in sequence along a first direction M, and the second surface 12 has a first high-frequency dipole element 31, a second high-frequency dipole element 32, a third high-frequency dipole element 33, and a fourth high-frequency dipole element 34 arranged in sequence along the first direction M. The first low-frequency dipole element 21 and the second low-frequency dipole element 22 are connected by a first transmission line 4, and the first low-frequency dipole element 21 is connected to the first feeder 5. The first high-frequency dipole element 31, the second high-frequency dipole element 32, the third high-frequency dipole element 33, and the fourth high-frequency dipole element 34 are connected in sequence by a second feeder 7, and the first high-frequency dipole element 31 is connected to the second feeder 7. The center of the first low-frequency dipole element 21 overlaps with the center of the first high-frequency dipole element 31, and the center of the second low-frequency dipole element 22 overlaps with the center of the third high-frequency dipole element 33. In this scheme, the four high-frequency dipole elements 3 can be evenly distributed, or the second high-frequency dipole element 32 and the fourth high-frequency dipole element 34 can be flexibly arranged according to actual needs. Using this scheme to arrange the low-frequency dipole elements 2 and high-frequency dipole elements 3 helps save antenna space.

[0075] Please refer to Figure 2 and Figure 3In a specific embodiment, the first surface 11 of the circuit board of the dual-frequency dual-fed omnidirectional high-gain antenna has two low-frequency dipole elements 2, and the second surface 12 has four high-frequency dipole elements 3, and the arrangement method in the above embodiment is adopted. A T-shaped branch 8 is set between the first dipole arm 211 and the second dipole arm 212 of the first low-frequency dipole element 21, and a sawtooth coupling is adopted between the third dipole arm 35 and the fourth dipole arm 36 of the high-frequency dipole element 3. Adjacent low-frequency dipole elements 2 are connected by coaxial jumpers 20, and adjacent high-frequency dipole elements 3 are connected by coplanar microstrip transmission lines 10. The dipole arms of the above-mentioned low-frequency dipole elements 2 have a U-shaped third hollow structure, and the total length of the U-shaped third hollow structure is half the dielectric wavelength of the high-frequency dipole element 3, forming a stop band for high frequencies. The coplanar microstrip transmission line 10 has a U-shaped second hollow structure 102, the total length of which is half the dielectric wavelength of the low-frequency dipole element 2, forming a stopband for low-frequency signals. By rationally arranging the spacing between the individual elements, specifically, the spacing between the low-frequency dipole elements 2 can be made 0.8 times the dielectric wavelength of the low-frequency signal, and the spacing between the high-frequency dipole elements 3 can be made 0.8 times the dielectric wavelength of the high-frequency signal. Combining the third hollow structure and the second hollow structure 102 to form an isolation measure, the dual-band dual-fed omnidirectional high-gain antenna can achieve high side-fire omnidirectional gain and high isolation across different frequencies. Figure 9 This is the vertical in-band pattern of the low-frequency signal when the antenna's low-frequency gain reaches 4.6 dBi in this embodiment. For details, please refer to the patterns at low frequencies of 2.4 GHz and 2.5 GHz. It can be seen that in this embodiment, when the gain is high, the in-band pattern stability of the low-frequency signal is also good. Figure 10 This is the vertical in-band pattern of the high-frequency signal when the antenna's high-frequency gain reaches 8.26dBi in this embodiment. For details, please refer to the patterns at high frequencies of 5.2GHz, 5.5GHz, and 5.8GHz. It can be seen that in this embodiment, when the gain is high, the in-band pattern stability of the high-frequency signal is also good. Figure 11 This is a diagram showing the relationship between the S parameters and the operating frequency of the antenna in the embodiment of the present application. Figure 11 As shown in the figure, S1.1 corresponds to the matching information of the low-frequency dipole element. When the antenna operates in the low-frequency state (2.4GHz to 2.5GHz), the S parameter is less than -10, indicating good transmission performance. S2.2 corresponds to the matching information of the high-frequency dipole element. When the antenna operates in the high-frequency state (5.1GHz to 5.9GHz), the S parameter is less than -18, indicating good transmission performance. S2.1 corresponds to the isolation information between the low-frequency dipole element and the high-frequency dipole element. When the antenna operates in the low-frequency state (2.4GHz to 2.5GHz) and the high-frequency state (5.1GHz to 5.9GHz), the S parameter is less than -15, indicating good isolation.

[0076] Please refer to Figure 6 and Figure 7 The embodiment shown in FIG. Figure 2 and Figure 3 The difference between the illustrated embodiments is that the low-frequency dipole elements 2 are connected by a coplanar microstrip transmission line 10, and adjacent high-frequency dipole elements 3 are connected by a coaxial jumper 20. The coplanar microstrip transmission line 10 has a U-shaped first hollow structure 101, the total length of which is half the wavelength of the dielectric medium of the high-frequency dipole element 3, forming a stopband for high-frequency signals. Figure 12 This is the vertical in-band pattern of the low-frequency signal when the antenna's low-frequency gain reaches 4.4 dBi in this embodiment. For details, please refer to the patterns at low frequencies of 2.4 GHz and 2.5 GHz. It can be seen that in this embodiment, when the gain is high, the in-band pattern stability of the low-frequency signal is also good. Figure 13 This is the vertical in-band pattern of the high-frequency signal when the antenna's high-frequency gain reaches 8.43dBi in this embodiment. For details, please refer to the patterns at high frequencies of 5.2GHz, 5.5GHz, and 5.8GHz. It can be seen that in this embodiment, when the gain is high, the in-band pattern stability of the high-frequency signal is also good. Figure 14 This is a diagram showing the relationship between the S parameters and the operating frequency of the antenna in the embodiment of the present application. Figure 14 As shown in the figure, S2.2 corresponds to the matching information of the low-frequency dipole element. When the antenna operates in the low-frequency state (2.4GHz to 2.5GHz), the S parameter is less than -10, indicating good transmission performance. S1.1 corresponds to the matching information of the high-frequency dipole element. When the antenna operates in the high-frequency state (5.1GHz to 5.9GHz), the S parameter is less than -10, indicating good transmission performance. S2.1 corresponds to the isolation information between the low-frequency dipole element and the high-frequency dipole element. When the antenna operates in the low-frequency state (2.4GHz to 2.5GHz) and the high-frequency state (5.1GHz to 5.9GHz), the S parameter is less than -15. Therefore, the antenna has good isolation.

[0077] Based on the same technical concept, the present application also provides a wireless communication device, which includes a shell, a control circuit and a dual-frequency dual-fed omnidirectional high-gain antenna in any of the above technical solutions. The above-mentioned dual-frequency dual-fed omnidirectional high-gain antenna and the control circuit are arranged in the above-mentioned shell, and the above-mentioned dual-frequency dual-fed omnidirectional high-gain antenna is electrically connected to the control circuit. The above-mentioned control circuit is used to process signals, and the dual-frequency dual-fed omnidirectional high-gain antenna is used to transmit signals. Specifically, the dual-frequency dual-fed omnidirectional high-gain antenna can transmit the signal processed by the control circuit, or the control circuit receives the signal received by the dual-frequency dual-fed omnidirectional high-gain antenna and processes it. Since the dual-frequency dual-fed omnidirectional high-gain antenna has a high isolation and a high gain, the communication effect of the wireless communication device is better.

[0078] In a specific embodiment, the specific type of the wireless communication device is not limited. For example, the wireless communication device can be a router or a set-top box, etc., mainly a WiFi communication device.

[0079] Based on the same technical concept, the present application also provides a chip, which includes a control circuit and a dual-frequency dual-fed omnidirectional high-gain antenna in any of the above technical solutions. The above-mentioned dual-frequency dual-fed omnidirectional high-gain antenna is electrically connected to the control circuit. Specifically, the above-mentioned control circuit and the dual-frequency dual-fed omnidirectional high-gain antenna can form a packaging structure to simplify the installation process of the chip. The above-mentioned control circuit is used to process signals, and the dual-frequency dual-fed omnidirectional high-gain antenna is used to transmit the input and output signals of the above-mentioned control circuit. Specifically, the dual-frequency dual-fed omnidirectional high-gain antenna can transmit the signal processed by the control circuit, or the control circuit receives the signal received by the dual-frequency dual-fed omnidirectional high-gain antenna and processes it. Since the dual-frequency dual-fed omnidirectional high-gain antenna has a high isolation and a high gain, the communication effect of the chip is better.

[0080] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the scope of protection of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A dual-frequency dual-feed omnidirectional high-gain antenna, characterized in that: include: A circuit board comprising a first surface and a second surface that are opposite to each other; At least two low-frequency dipole oscillators (2) are sequentially arranged on the first surface along a first direction; adjacent low-frequency dipole oscillators are electrically connected via a first transmission line (4); the at least two low-frequency dipole oscillators (2) include a first low-frequency dipole oscillator (21), the first low-frequency dipole oscillator is electrically connected to a first feeder (5); the first low-frequency dipole oscillator (21) includes a first oscillator arm (211) and a second oscillator arm (212) arranged along the first direction; At least two high-frequency dipole oscillators (3) are sequentially arranged on the second surface along the first direction; adjacent high-frequency dipole oscillators are electrically connected via a second transmission line (6); the at least two high-frequency dipole oscillators include a first high-frequency dipole oscillator (31), and the first high-frequency dipole oscillator (31) is electrically connected to a second feeder (7); the frequency of the signal transmitted by the high-frequency dipole oscillator is higher than the frequency of the signal transmitted by the low-frequency dipole oscillator; A branch (8) is arranged between the first dipole arm (211) and the second dipole arm (212); the branch has an isolation portion (81) extending along a second direction, the second direction being perpendicular to the first direction, and the branch (8) is connected between the first transmission line (4) and the first feed line (5).

2. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 1, characterized in that: The first transmission line is a coplanar microstrip transmission line, and the coplanar microstrip transmission line has a first hollow structure (101).

3. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 2, characterized in that: The first hollow structure is U-shaped.

4. The dual-frequency dual-fed omnidirectional high-gain antenna according to claim 2 or 3, characterized in that: The total length of the first hollow structure is half of the dielectric wavelength of the high-frequency dipole oscillator.

5. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 1, characterized in that: The second transmission line is a coplanar microstrip transmission line, and the coplanar microstrip transmission line has a second hollow structure (102).

6. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 5, characterized in that: The second hollow structure is U-shaped.

7. The dual-frequency dual-fed omnidirectional high-gain antenna according to claim 5 or 6, characterized in that: The total length of the second hollow structure is half of the medium wavelength of the low-frequency dipole oscillator.

8. The dual-frequency dual-fed omnidirectional high-gain antenna according to any one of claims 1 to 3, 5 or 6, characterized in that: The vibrator arm of the low-frequency dipole vibrator has a third hollow structure (23).

9. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 8, characterized in that: The third hollow structure is U-shaped.

10. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 4, characterized in that: The vibrator arm of the low-frequency dipole vibrator has a third hollow structure (23).

11. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 10, characterized in that: The third hollow structure is U-shaped.

12. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 7, characterized in that: The vibrator arm of the low-frequency dipole vibrator has a third hollow structure (23).

13. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 12, characterized in that: The third hollow structure is U-shaped.

14. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 8, characterized in that: The total length of the third hollow structure (23) is half the dielectric wavelength of the high-frequency dipole oscillator.

15. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 9, characterized in that: The total length of the third hollow structure (23) is half the dielectric wavelength of the high-frequency dipole oscillator.

16. The dual-frequency dual-fed omnidirectional high-gain antenna according to any one of claims 1 to 3, 5 or 6, characterized in that: The first transmission line is a coplanar microstrip transmission line; or the second transmission line is a coplanar microstrip transmission line.

17. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 7, characterized in that: The first transmission line is a coplanar microstrip transmission line; or the second transmission line is a coplanar microstrip transmission line.

18. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 8, characterized in that: The first transmission line is a coplanar microstrip transmission line; or the second transmission line is a coplanar microstrip transmission line.

19. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 9, characterized in that: The first transmission line is a coplanar microstrip transmission line; or the second transmission line is a coplanar microstrip transmission line.

20. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 14, characterized in that: The first transmission line is a coplanar microstrip transmission line; or the second transmission line is a coplanar microstrip transmission line.

21. The dual-frequency dual-feed omnidirectional high-gain antenna according to any one of claims 1 to 3, 5 or 6, characterized in that: The branch is T-shaped.

22. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 7, characterized in that: The branch is T-shaped.

23. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 8, characterized in that: The branch is T-shaped.

24. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 9, characterized in that: The branch is T-shaped.

25. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 14, characterized in that: The branch is T-shaped.

26. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 16, characterized in that: The branch is T-shaped.

27. The dual-frequency dual-fed omnidirectional high-gain antenna according to any one of claims 1 to 3, 5 or 6, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

28. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 7, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

29. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 8, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

30. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 9, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

31. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 14, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

32. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 16, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

33. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 21, characterized in that: The high-frequency dipole oscillator comprises a third oscillator arm and a fourth oscillator arm, the third oscillator arm has a first sawtooth portion (351) on a side facing the fourth oscillator arm, the fourth oscillator arm has a second sawtooth portion (361) on a side facing the third oscillator arm, and the first sawtooth portion and the second sawtooth portion are coupled.

34. The dual-frequency dual-fed omnidirectional high-gain antenna according to any one of claims 1 to 3, 5 or 6, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

35. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 7, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

36. The dual-frequency dual-feed omnidirectional high-gain antenna as claimed in claim 8, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

37. The dual-frequency dual-feed omnidirectional high-gain antenna as claimed in claim 9, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

38. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 14, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

39. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 16, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

40. The dual-frequency dual-feed omnidirectional high-gain antenna according to claim 21, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

41. The dual-frequency dual-feed omnidirectional high-gain antenna as claimed in claim 27, characterized in that: The first surface arranges the first low-frequency dipole oscillator and the second low-frequency dipole oscillator in sequence, and the second surface arranges the first high-frequency dipole oscillator, the second high-frequency dipole oscillator, the third high-frequency dipole oscillator and the fourth high-frequency dipole oscillator in sequence, the center of the first low-frequency dipole oscillator overlaps with the center of the first high-frequency dipole oscillator, and the center of the second low-frequency dipole oscillator overlaps with the center of the third high-frequency dipole oscillator.

42. A wireless communication device, characterized in that: It comprises a shell, a control circuit and a dual-frequency dual-fed omnidirectional high-gain antenna as claimed in any one of claims 1 to 41, wherein the control circuit and the dual-frequency dual-fed omnidirectional high-gain antenna are arranged in the shell, and the control circuit and the dual-frequency dual-fed omnidirectional high-gain antenna are electrically connected.

43. A chip, characterized in that: It comprises a control circuit and a dual-frequency dual-fed omnidirectional high-gain antenna as claimed in any one of claims 1 to 41, wherein the control circuit is electrically connected to the dual-frequency dual-fed omnidirectional high-gain antenna.

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