An antenna unit and a communication device

Abstract

The embodiment of the present application relates to the technical field of communication, and discloses an antenna unit and a communication device, the antenna unit comprises a dielectric substrate, a radiation layer, a ground layer and a feed structure, the dielectric substrate comprises a first surface and a second surface arranged oppositely, the radiation layer is arranged on the first surface, the radiation layer comprises a first radiator and a second radiator, the first radiator and the second radiator are electrically connected to form a conductive path, the conductive path can produce resonance at multiple different frequency bands, the ground layer is arranged on the second surface, and the feed structure is connected with the radiation layer and is used for transmitting radio frequency signals to the radiation layer. In the above manner, the embodiment of the present application can simultaneously cover multiple different communication frequency bands in a single structure.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna unit and a communication device. Background Technology

[0002] Traditional antenna designs primarily optimize for a single frequency band, typically configuring a dedicated antenna for each communication function. For example, GPS receivers use a dedicated L1 band antenna, WiFi devices are equipped with 2.4GHz or 5GHz antennas, and cellular communication relies on dedicated antennas for the corresponding frequency bands. This single-band antenna design can achieve good performance within its respective operating frequency band. However, with the increasing integration of device functions, multi-antenna configurations face problems such as large space occupation, high system complexity, and increased costs. Modern wireless communication devices urgently need integrated antenna solutions that can simultaneously cover multiple frequency bands, including GPS L1, WiFi, LTE, 5G Sub-6GHz, and WiFi 6.

[0003] In implementing the embodiments of this application, the inventors discovered that current attempts at multi-band antenna design mainly expand frequency band coverage by increasing structural complexity, including the use of multi-layer ceramic processes, complex metal stamping structures, or multi-level feed network designs. While expanding frequency band coverage, these technical approaches introduce problems such as complex manufacturing processes and high material costs, which seriously restrict the practical application and large-scale application of the products. Utility Model Content The main technical problem solved by the embodiments of this application is to provide an antenna unit that can simultaneously cover multiple different communication frequency bands in a single structure, effectively solving the technical problem of limited frequency band coverage in traditional antenna design. Compared with the traditional solution that requires multiple independent antenna combinations, the present invention significantly reduces the number of antennas required by the device, and significantly reduces the space occupation and overall complexity of the system.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: to provide an antenna unit, including a dielectric substrate, a radiating layer, a ground layer and a feeding structure, wherein the dielectric substrate includes a first surface and a second surface disposed opposite to each other, the radiating layer is disposed on the first surface, the radiator includes a first radiator and a second radiator, the first radiator and the second radiator are electrically connected to form a conductive path, the conductive path can generate resonance in multiple different frequency bands, the ground layer is disposed on the second surface, and the feeding structure is connected to the radiating layer for transmitting radio frequency signals to the radiating layer.

[0005] Optionally, the conductive path includes a first slot stub, a first L-shaped slot stub, a second L-shaped slot stub, and a third slot stub. One end of the first slot stub extends to the second slot stub, one end of the second slot stub is perpendicular to the dielectric substrate, the other end of the first slot stub is connected to the first L-shaped slot stub, the other end of the first L-shaped slot stub is connected to the second L-shaped slot stub, and the other end of the second L-shaped slot stub is connected to the third slot stub.

[0006] Optionally, the first radiator includes a first rectangular radiating part, a second rectangular radiating part, a third rectangular radiating part, and a fourth rectangular radiating part. The first rectangular radiating part is connected to the second rectangular radiating part and the third rectangular radiating part, respectively. The third rectangular radiating part and the fourth rectangular radiating part are connected. The third rectangular radiating part extends to include a first radiating branch and a fifth rectangular radiating part. The first radiating branch is connected to the fifth rectangular radiating part.

[0007] Optionally, the second radiator includes a sixth rectangular radiating part, a seventh rectangular radiating part, an eighth rectangular radiating part, a ninth rectangular radiating part, a second radiating branch, a third radiating branch, a fourth radiating branch, and a tenth rectangular radiating part. The sixth, seventh, and eighth rectangular radiating parts are connected in sequence. The seventh rectangular radiating part extends to form the ninth rectangular radiating part, and the ninth rectangular radiating part extends to form the second radiating branch. The second and third radiating branches are bent and connected. The tenth rectangular radiating part is connected through the fourth and third radiating branches.

[0008] Optionally, the first rectangular radiating part, the second rectangular radiating part, the third rectangular radiating part, the fourth rectangular radiating part, the first radiating branch, and the fifth rectangular radiating part are integrally formed structures.

[0009] Optionally, the second radiator includes a sixth rectangular radiating part, a seventh rectangular radiating part, an eighth rectangular radiating part, a ninth rectangular radiating part, a second radiating branch, a third radiating branch, a fourth radiating branch, and a tenth rectangular radiating part, which are integrally formed.

[0010] Optionally, the power supply structure includes a power supply line connected to the radiating layer and extending to the side of the dielectric substrate.

[0011] Optionally, the antenna element further includes a protective layer coated on the radiating layer.

[0012] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a communication device including any of the antenna elements mentioned above.

[0013] This application provides an antenna unit including a dielectric substrate, a radiating layer, a ground layer, and a feeding structure. The dielectric substrate includes a first surface and a second surface disposed opposite to each other. The radiating layer is disposed on the first surface. The radiators include a first radiator and a second radiator, which are electrically connected to form a conductive path. This conductive path can resonate in multiple different frequency bands. The ground layer is disposed on the second surface. The feeding structure is connected to the radiating layer and is used to transmit radio frequency signals to the radiating layer. Through the coordinated operation of the first and second radiators, the antenna unit can maintain good electrical characteristics in each operating frequency band. The optimized design of the conductive path ensures the resonance effect of each frequency band, achieving high gain and low reflection loss performance indicators. The antenna unit can simultaneously cover multiple different communication frequency bands in a single structure, effectively solving the technical problem of limited frequency band coverage in traditional antenna designs. Compared with traditional solutions that require multiple independent antenna combinations, this invention significantly reduces the number of antennas required for the device, significantly reducing the system's space occupation and overall complexity. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the antenna element according to an embodiment of this application; Figure 2 This is another schematic diagram of the antenna element in an embodiment of this application; Figure 3 This is another schematic diagram of the antenna element in an embodiment of this application; Figure 4 This is a frequency emission coefficient performance diagram of the antenna element in an embodiment of this application; Figure 5 This is a radiation efficiency performance diagram of the antenna element in an embodiment of this application.

[0016] The reference numerals in the detailed embodiments are as follows: 100, antenna element; 10, dielectric substrate; 11, first surface; 20, radiating layer; 21, first radiator; 211, first rectangular radiating section; 212, second rectangular radiating section; 213, third rectangular radiating section; 214, fourth rectangular radiating section; 215, first radiating branch; 216, fifth rectangular radiating section; 22, second radiator; 221, sixth rectangular radiating section; 222, seventh rectangular radiating section; 223, eighth rectangular radiating section; 224, ninth rectangular radiating section; 225, second radiating branch; 256, third radiating branch; 257, fourth radiating branch; 258, tenth rectangular radiating section; 23, conductive path; 231, first slot branch; 232, first L-shaped slot branch; 233, second L-shaped slot branch; 234, third slot branch; 235, second slot branch. Detailed Implementation

[0017] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0019] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0020] Please see Figure 1 and Figure 2 The antenna unit 100 includes a dielectric substrate 10, a radiating layer 20, a ground layer (not shown) and a feeding structure (not shown).

[0021] The dielectric substrate 10 is made of FR4 material, which has a dielectric constant of 4.4 and a thickness of 1.6 mm. The dielectric substrate 10 has a rectangular structure and includes a first surface 11 and a second surface (not shown) disposed opposite to each other. The first surface 11 is the front side of the dielectric substrate 10, and the second surface is the back side. A radiating layer 20 is disposed on the first surface 11 of the dielectric substrate 10, and a conductive pattern is formed on the first surface 11 using a printed circuit board process. The radiating layer 20 includes a first radiator 21 and a second radiator 22. The first radiator 21 is located in the left side region of the first surface 11 of the dielectric substrate 10, and the second radiator 22 is located in the right side region of the first surface 11 of the dielectric substrate 10. The first radiator 21 and the second radiator 22 are electrically connected by conductive interconnects to form a continuous conductive path 23, ensuring resonance in multiple target frequency bands. A ground layer is disposed on the second surface of the dielectric substrate 10, and an opening is provided at the feed port. The ground layer is made of copper foil material, and a complete ground plane is formed using a printed circuit board process. The power supply structure consists of two parts: a power supply line and a power supply port. The power supply port is a circular hole, and the power supply line is a coaxial cable. One end of the power supply line is connected to the power supply port and forms an electrical connection with the radiating layer 20, while the other end of the power supply line extends to the outside of the dielectric substrate 10 and connects to the radio frequency signal source.

[0022] Please see Figure 2The conductive path 23 includes a first slot stub 231, a first L-shaped slot stub 232, a second L-shaped slot stub 233, and a third slot stub 234. One end of the first slot stub 231 extends to a second slot stub 235. One end of the second slot stub 235 is perpendicular to the dielectric substrate 10. The other end of the first slot stub 231 is connected to the first L-shaped slot stub 232. The other end of the first L-shaped slot stub 232 is connected to the second L-shaped slot stub. The other end of the second L-shaped slot stub is connected to the third slot stub 234. The first slot stub 231 is straight and is responsible for the resonance characteristics of the GPS L1 band at 1.575 MHz. One end of the first slot stub 231 extends into a second slot stub 235, extending perpendicularly to the first surface 11 of the dielectric substrate 10. This second slot stub primarily serves to optimize the electromagnetic characteristics of the WiFi 2.4GHz band. The other end of the first slot stub 231 is electrically connected to a first L-shaped slot stub 232. The first L-shaped slot stub 232 features a right-angle bend design, and its structure is specifically geometrically optimized for the LTE band. The end of the first L-shaped slot stub 232 connects to a second L-shaped slot stub 233, which is primarily responsible for the electromagnetic response of the 5G Sub-6GHz band. The end of the second L-shaped slot stub 233 connects to a third slot stub 234, which has a straight-line structure and primarily tunes for high-frequency WiFi 6 applications.

[0023] Please see Figure 3The first radiator 21 includes a first rectangular radiating section 211, a second rectangular radiating section 212, a third rectangular radiating section 213, a fourth rectangular radiating section 214, and a first radiating branch 215. These components, through precise geometric layout and electrical connections, achieve optimized electromagnetic performance. The first rectangular radiating section 211, as the main structure of the first radiator 21, is located in the central region of the first radiator 21 and serves as a connection hub for the other radiating sections. The second rectangular radiating section 212 extends from a designated end of the first rectangular radiating section 211, forming an electrical connection with it to ensure good current conduction characteristics. The third rectangular radiating section 213 also extends from the first rectangular radiating section 211, but in a different direction than the second rectangular radiating section 212. The extension direction of the third rectangular radiating section 213 is optimized to form a specific angle relationship with the second rectangular radiating section 212. The third rectangular radiating section 213 and the fourth rectangular radiating section 214 form a cascaded connection. The fourth rectangular radiator 214 extends from the end of the third rectangular radiator 213, and generates effective resonance in the 1710-2700 MHz range of the LTE band. This connection design creates additional current paths, helping to extend the band coverage. A first radiating stub 215 and a fifth rectangular radiator 216 are also present. The first radiating stub 215 is an elongated structure that extends vertically from the side of the third rectangular radiator 213. The fifth rectangular radiator 216 connects to the end of the first radiating stub 215. The connection between the first radiating stub 215 and the fifth rectangular radiator 216 forms a T-shaped structure, which significantly affects the electromagnetic characteristics of the high-frequency band. Through this arrangement, the first radiator 21 achieves the excitation of multiple resonant modes while maintaining a compact structure, making a significant contribution to the wideband characteristics of the antenna element 100.

[0024] The slot structure design in the conductive path is based on resonance theory and electromagnetic simulation optimization. The first slot stub generates a quarter-wavelength resonance in the GPS band. Simulation results show that the surface current in this band forms a significant standing wave node at the end of the first slot stub. The vertical extension design of the second slot stub enables it to form an effective radiation path in the 2.4 MHz band. The first L-shaped slot stub generates a dual resonance effect within the LTE band. Surface current simulation shows that the current forms a strong concentration at the L-shaped corner in the 1.71 MHz to 2.7 MHz band, indicating the effective contribution of this structure to the LTE band. The second L-shaped slot stub is tuned for the 5G Sub-6GHz band in the 3.3-4.2 MHz range. Current distribution analysis shows a high-density current distribution in the region of the second L-shaped slot stub in the 3.5 MHz band, verifying the correctness of the design.

[0025] The third slit stub primarily serves high-frequency applications. In the 5.15-5.85 MHz and 5.95-7.125 MHz frequency bands, the surface current forms a distinct resonant mode in this region, and the current distribution exhibits localization characteristics unique to high frequencies.

[0026] Please combine Figure 4 The reflection coefficient S11 performance curve of the antenna element is shown in the frequency range of 1-8 GHz. This curve reflects the impedance matching of the antenna input port. The lower the S11 value, the better the matching performance and the smaller the energy reflection loss.

[0027] from Figure 4 The curves show several distinct resonance valleys, corresponding to the operating frequency bands of each target. At 1.575GHz in the GPS L1 band, S11 achieves -2.91dB. Excellent matching is achieved at -18.23dB in the WiFi band at 2.4GHz. The LTE band achieves -3.03dB at 1.71GHz and -4.62dB at 2.7GHz. The 5G Sub-6GHz band performs exceptionally well, achieving -11.72dB at 3.3GHz and -19.26dB at 4.2GHz. High-frequency WiFi bands achieve -9.28dB at 5.15GHz and -11.05dB at 7.125GHz.

[0028] Figure 5 The curves show the overall radiation efficiency of the antenna element as a function of frequency. Radiation efficiency characterizes the ratio of input power to radiated power; the closer the value is to 0dB, the higher the efficiency and the lower the energy loss. The curves show that the antenna maintains a high level of radiation efficiency across all operating frequency bands. At 1.575GHz in the GPS band, the efficiency is -4.49dB, and at 2.4GHz in the WiFi band, it improves to -3.63dB. The 5G band performance is particularly excellent, reaching -0.32dB at 3.3GHz, close to the ideal efficiency value. High-frequency band performance remains stable, maintaining an excellent level of -0.14dB at 7.125GHz. Figure 5 The efficiency curves demonstrate that the antenna design can effectively convert input power into electromagnetic radiation across a wide frequency range, exhibiting good energy utilization efficiency and providing reliable performance assurance for practical communication applications.

[0029] Please see Figure 3The second radiator 22 includes a sixth rectangular radiating section 221, a seventh rectangular radiating section 222, an eighth rectangular radiating section 223, a ninth rectangular radiating section 224, a second radiating branch 225, a third radiating branch 256, a fourth radiating branch 257, and a tenth rectangular radiating section 258. The sixth rectangular radiating section 221, the seventh rectangular radiating section 222, and the eighth rectangular radiating section 223 form the main structure of the second radiator 22, and are sequentially connected to form a continuous conductive path 23. The sixth rectangular radiating section 221 is located at the starting end of the second radiator 22. The seventh rectangular radiating section 222 extends from the sixth rectangular radiating section 221, and the eighth rectangular radiating section 223 continues to extend from the seventh rectangular radiating section 222, forming the terminal part of the main structure of the second radiator 22. The three sections are sequentially connected to form the main conductive path. At the WiFi frequency band of 2.4 MHz, the current is mainly concentrated in the region of the seventh rectangular radiating section, and the current density reaches its peak value. The seventh rectangular radiating section 222 extends into a ninth rectangular radiating section 224, which branches off from the middle of the seventh rectangular radiating section 222. The extension direction of the ninth rectangular radiating section 224 is perpendicular to the main structure. The ninth rectangular radiating section 224 further extends into a second radiating branch 225, which is a narrow strip structure. The second radiating branch 225 and the third radiating branch 256 are electrically connected by a bend. Preferably, the bend connection can adopt a rounded transition design to ensure smooth current conduction at the bend. The tenth rectangular radiating section 258 is connected to the third radiating branch 256 through a fourth radiating branch 257. The fourth radiating branch 257 acts as a connecting bridge, and the tenth rectangular radiating section 258 serves as the terminal structure of the second radiator 22. In this embodiment, the second radiator 22 creates multiple independent resonant paths, each corresponding to a different operating frequency band. Through the ingenious arrangement of the second radiating stub 225, the third radiating stub 256, and the fourth radiating stub 257, the second radiator 22 exhibits excellent radiation characteristics in the high-frequency band, forming a good complementary relationship with the first radiator 21, and together achieving the wideband coverage capability of the antenna element 100.

[0030] In this embodiment, the integrated structure design of the first radiator 21 follows the technical requirements of modern printed circuit board manufacturing processes. The first rectangular radiator 211, the second rectangular radiator 212, the third rectangular radiator 213, the fourth rectangular radiator 214, the first radiating branch 215, and the fifth rectangular radiator 216 employ a unified manufacturing process, forming a complete metal pattern on the surface of the FR4 substrate through a single photolithography and etching process. The integrated structure eliminates the connection resistance and mechanical stress problems that may arise in traditional segmented manufacturing. The integrated molding process uses standard subtractive printing circuit board manufacturing technology. First, electrolytic copper foil is covered on the first surface 11 of the FR4 dielectric substrate 10. The copper foil surface undergoes chemical cleaning to ensure the reliability of subsequent processes. Photoresist coating is then performed, with a spin coating process ensuring thickness uniformity. An ultraviolet light source is used in the exposure process to ensure accurate transfer of the photoresist pattern. The development and etching process parameters are precisely controlled to achieve the required geometric accuracy. After etching, photoresist removal and surface cleaning are performed, ultimately forming the complete integrated structure of the first radiator 21.

[0031] In this embodiment, the second radiator 22 also employs a one-piece molding manufacturing process. The sixth rectangular radiator 221, the seventh rectangular radiator 222, the eighth rectangular radiator 223, the ninth rectangular radiator 224, the second radiating branch 225, the third radiating branch 256, the fourth radiating branch 257, and the tenth rectangular radiator 258 are completed in the same manufacturing process, ensuring electrical continuity and mechanical stability between the parts. The technical advantages of the one-piece molding process are multifaceted. Manufacturing precision is significantly improved, electrical performance is more stable, contact resistance variations caused by welding or mechanical connections are eliminated, and production efficiency is greatly increased.

[0032] In this embodiment, the feed structure includes a feed line and a feed point. The feed line performs the key function of radio frequency signal transmission. The feed line achieves a reliable electrical connection with the radiating layer 20 and extends to the side region of the dielectric substrate 10, providing a convenient interface for connecting external radio frequency circuits. The feed line adopts a transition structure design from microstrip line to coaxial cable. The microstrip line portion is directly printed on the first surface 11 of the dielectric substrate 10, extending along a straight path from the feed point to the edge of the dielectric substrate 10. The geometric parameters of the microstrip line take into account the dielectric constant and thickness of the FR4 dielectric substrate 10, and impedance continuity is ensured through transmission line theory calculations.

[0033] In this embodiment, the antenna element 100 further includes a protective layer (not shown), which is coated on the radiating layer 20 and provides environmental and mechanical protection for the antenna element 100. The selection of the protective layer material considers multiple requirements, including dielectric properties, mechanical strength, and environmental stability. Polyimide film material is preferably used for the protective layer.

[0034] This application provides an antenna unit 100, including a dielectric substrate 10, a radiating layer 20, a ground layer, and a feeding structure. The dielectric substrate 10 includes a first surface 11 and a second surface disposed opposite to each other. The radiating layer 20 is disposed on the first surface 11. The radiators include a first radiator 21 and a second radiator 22. The first radiator 21 and the second radiator 22 are electrically connected to form a conductive path 23. The conductive path 23 can resonate in multiple different frequency bands. The ground layer is disposed on the second surface. The feeding structure is connected to the radiating layer 20 and is used to transmit radio frequency signals to the radiating layer 20. Through the coordinated operation of the first radiator 21 and the second radiator 22, the antenna unit 100 can maintain good electrical characteristics in each operating frequency band. The optimized design of the conductive path 23 ensures the resonance effect of each frequency band, achieving high gain and low reflection loss performance indicators. The antenna unit 100 can simultaneously cover multiple different communication frequency bands in a single structure, effectively solving the technical problem of limited frequency band coverage in traditional antenna design. Compared to traditional solutions that require multiple independent antenna combinations, this invention significantly reduces the number of antennas required for the device, thereby significantly reducing the system's space requirements and overall complexity.

[0035] This application also provides embodiments of a communication device. The communication device adopts a modular design concept, integrating the antenna unit 100 as an independent RF front-end module into the overall system. The communication device includes functional modules such as RF transceiver circuits, baseband processing circuits, power management circuits, and user interface circuits. The antenna unit 100 is connected to the RF transceiver circuits via a standard RF interface. Application scenarios for the communication device cover multiple fields, including smartphones, tablets, IoT terminals, vehicle communication systems, and industrial gateways. In smartphone applications, the compact size and multi-band characteristics of the antenna unit 100 significantly simplify the complexity of RF front-end design. In IoT terminal applications, a single antenna unit 100 can meet the comprehensive needs of positioning, local communication, and wide area network connectivity, significantly reducing system cost and power consumption.

[0036] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An antenna element, characterized in that, include: A dielectric substrate, including a first surface and a second surface disposed opposite to each other; A radiation layer is disposed on the first surface. The radiation layer includes a first radiator and a second radiator. The first radiator and the second radiator are electrically connected to form a conductive path. The conductive path can generate resonance in multiple different frequency bands. A grounding layer is disposed on the second surface; A power supply structure, connected to the radiating layer, is used to transmit radio frequency signals to the radiating layer.

2. The antenna element according to claim 1, characterized in that, The conductive path includes a first slot stub, a first L-shaped slot stub, a second L-shaped slot stub, and a third slot stub. One end of the first slot stub extends to the second slot stub, one end of the second slot stub is perpendicular to the dielectric substrate, the other end of the first slot stub is connected to the first L-shaped slot stub, the other end of the first L-shaped slot stub is connected to the second L-shaped slot stub, and the other end of the second L-shaped slot stub is connected to the third slot stub.

3. The antenna element according to claim 1, characterized in that, The first radiator includes a first rectangular radiating part, a second rectangular radiating part, a third rectangular radiating part, and a fourth rectangular radiating part. The first rectangular radiating part is connected to the second rectangular radiating part and the third rectangular radiating part, respectively. The third rectangular radiating part and the fourth rectangular radiating part are connected. The third rectangular radiating part extends to have a first radiating branch and a fifth rectangular radiating part. The first radiating branch is connected to the fifth rectangular radiating part.

4. The antenna element according to claim 1, characterized in that, The second radiator includes a sixth rectangular radiating part, a seventh rectangular radiating part, an eighth rectangular radiating part, a ninth rectangular radiating part, a second radiating branch, a third radiating branch, a fourth radiating branch, and a tenth rectangular radiating part. The sixth, seventh, and eighth rectangular radiating parts are connected in sequence. The seventh rectangular radiating part extends to the ninth rectangular radiating part, and the ninth rectangular radiating part extends to the second radiating branch. The second and third radiating branches are bent and connected. The tenth rectangular radiating part is connected through the fourth and third radiating branches.

5. The antenna element according to claim 3, characterized in that, The first rectangular radiating part, the second rectangular radiating part, the third rectangular radiating part, the fourth rectangular radiating part, the first radiating branch, and the fifth rectangular radiating part are integrally formed structures.

6. The antenna element according to claim 4, characterized in that, The second radiator comprises a sixth rectangular radiating part, a seventh rectangular radiating part, an eighth rectangular radiating part, a ninth rectangular radiating part, a second radiating branch, a third radiating branch, a fourth radiating branch, and a tenth rectangular radiating part, all integrally formed.

7. The antenna element according to claim 1, characterized in that, The power supply structure includes a power supply line connected to the radiating layer and extending to the side of the dielectric substrate.

8. The antenna element according to claim 1, characterized in that, The antenna element further includes a protective layer coated on the radiating layer.

9. A communication device, characterized in that, Includes the antenna element as described in any one of claims 1-8.

Images