Multi-parasitic element radiation array antenna implementation structure
By introducing parasitic radiation branches into the antenna and optimizing their gaps and coupling volumes, the problem of space and material limitations in traditional antennas in modern electronic products is solved, and broadband and efficient antenna performance is achieved.
Patent Information
- Application Number
- CN202421940439.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-12
AI Technical Summary
Traditional antennas are limited by space and materials in modern electronic products, making them difficult to meet the needs of broadband and high efficiency, and are difficult to balance aesthetics and performance requirements.
The multi-parasitic unit radiation array antenna structure is adopted, and the antenna performance is optimized by introducing parasitic radiation branches next to the main body radiation branches, adjusting their gaps and coupling amounts.
Significantly improve the bandwidth and efficiency of antennas, suitable for a variety of antenna modes, and meet the complex design needs of modern electronic products.
Smart Images
Figure CN223181391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of antenna design, and particularly to an implementation structure of a multi-parasitic element radiation array antenna. Background Art
[0002] With the development of the times and the continuous demand of people for the network performance of electronic products, as a key component, the antenna directly affects the network performance of the product and the comprehensive evaluation of the product by users. With the continuous emergence of new technologies, the importance of antenna performance in product promotion has become increasingly prominent, and users' attention and emphasis on the antenna performance of products have also increased.
[0003] Currently, various electronic products generally develop towards the directions of multi-function, large screen, all-metal, narrow frame, etc. These design trends make traditional antennas face space limitations and performance challenges. For example, traditional antennas usually require a large clearance and height, as well as an environment away from metal parts, otherwise their performance will be seriously affected. However, the space compression and material selection limitations in modern product design restrict the development space of traditional antennas and become a bottleneck in their development. Furthermore, these limitations result in a narrow frequency band and low efficiency of traditional antennas, making it difficult to meet the requirements of modern electronic products for wide frequency bands and high efficiency.
[0004] In summary, currently, electronic products not only require the antenna to have good performance but also need to meet the requirements of aesthetic appearance. Each antenna faces the challenges of gradually decreasing space requirements and lower height requirements. Therefore, there is an urgent need in the market for a new type of antenna technology with the characteristics of small clearance requirements, low height requirements, wide frequency band, and high performance to meet the complexity and diversification requirements of modern electronic product design. Summary of the Utility Model
[0005] The embodiments of the present disclosure provide an implementation structure of a multi-parasitic element radiation array antenna, which can solve the problem that traditional antennas in related technologies are difficult to meet the composite requirements of modern electronic products for multi-function, beauty, and high performance due to strict requirements for space and materials. The technical solution is as follows:
[0006] An implementation structure of a multi-parasitic element radiation array antenna is provided. The structure is applicable to the implementation layout of an antenna assembly, and the structure includes:
[0007] An antenna feed point position 10, a main body radiation branch 20, and at least one parasitic radiation branch 30, where the frequency band of the parasitic radiation branch 30 is the same as or different from the frequency band of the main body radiation branch 20;
[0008] The main body radiation branch 20 is led out at the antenna feed point position 10; the parasitic radiation branch 30 extends at a position parallel to the main body radiation branch 20.
[0009] Optionally, the form of the body radiation stub 20 is one of monopole, IFA, PIFA, and Loop.
[0010] Optionally, there is a parallel gap between the parasitic radiation stub 30 and the body radiation stub 20, and the size of the parallel gap is determined according to the coupling amount.
[0011] Optionally, the parasitic radiation stub 30 wraps around the end of the body radiation stub 20 to increase the coupling amount between the parasitic radiation stub 30 and the body radiation stub 20.
[0012] Optionally, the number of the parasitic radiation stubs 30 is determined according to a preset optimal antenna performance.
[0013] Optionally, the body radiation stub 20 and the parasitic radiation stub 30 participate in radiation simultaneously.
[0014] Optionally, the frequency bands of each stub are adjusted by changing the effective electrical lengths of the body radiation stub 20 and the parasitic radiation stub 30.
[0015] Optionally, in response to the presence of at least N parasitic radiation stubs 30, where N is a positive integer, they are sequentially denoted as the Nth parasitic radiation stub according to the proximity relationship;
[0016] The first parasitic radiation stub extends at a position parallel to the body radiation stub 20, and the Nth parasitic radiation stubs are arranged in a row parallel to the body radiation stub 20 in sequence.
[0017] Optionally, when N is 2, the range of the first parasitic radiation stub from the body radiation stub 20 is within zero to one - quarter of the wavelength of the first frequency band, and the range of the second parasitic radiation stub from the first parasitic radiation stub is within zero to one - quarter of the wavelength of the second frequency band, where the first frequency band is the corresponding frequency band of the first parasitic radiation stub and the second frequency band is the corresponding frequency band of the second parasitic radiation stub.
[0018] In the design of this utility model, the implementation structure of the multi-parasitic element radiation array antenna provides an antenna implementation structure that can not only ensure a simple and beautiful structural design but also be applied to complex antenna environments and significantly improve the antenna efficiency. This implementation structure of the multi-parasitic element radiation array antenna uses both the main radiation branches and the parasitic radiation branches to participate in the radiation design to achieve the purpose of improving the antenna performance; and the number of parasitic radiation branches can be selected according to the antenna performance requirements, that is, it is applicable to various antenna modes, such as applications in the form of single FPC or PCB, such as applications combined with cavity antennas, such as various forms of bracket + FPC flexible board attachment, various forms of bracket + LDS / LCP forms, and also such as bracket + iron part form, single iron part form, ensuring the wide applicability of the antenna implementation structure provided by this solution. Description of the Drawings
[0019] Figure 1 Fig. shows the structural schematic diagram of an implementation structure of a multi-parasitic element radiation array antenna in Example 1;
[0020] Figure 2 Fig. shows the front view schematic diagram of the physical simulation of the antenna assembly in Example 1;
[0021] Figure 3 Fig. shows the side view schematic diagram of the physical simulation of the antenna assembly in Example 1;
[0022] Figure 4 Fig. shows the bottom view schematic diagram of the physical simulation of the antenna assembly in Example 1;
[0023] Figure 5 Fig. shows the antenna VSWR data graph of the conventional solution in Example 1;
[0024] Figure 6 Fig. shows the antenna VSWR data graph of the implementation structure of the multi-parasitic element radiation array antenna in Example 1;
[0025] Figure 7 Fig. shows the structural schematic diagram of an implementation structure of a multi-parasitic element radiation array antenna in Example 2;
[0026] Figure 8 Fig. shows the front view schematic diagram of the physical simulation of the antenna assembly in Example 2;
[0027] Figure 9 Fig. shows the side view interface schematic diagram of the physical simulation of the antenna assembly in Example 2;
[0028] Figure 10 Fig. shows the partial enlarged side view cross-sectional schematic diagram of the physical simulation of the antenna assembly in Example 2;
[0029] Figure 11 Fig. shows the bottom view schematic diagram of the physical simulation of the antenna assembly in Example 2;
[0030] Figure 12 Shows the antenna VSWR data diagram of the conventional scheme of Example 2;
[0031] Figure 13 Shows the antenna VSWR data diagram of the multi-parasitic element radiation array antenna implementation structure of Example 2. Detailed implementation manners
[0032] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe the implementation manners of the present utility model in detail with reference to the accompanying drawings.
[0033] As used herein, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.
[0034] In each example of the present application, considering the quantity characteristics of at least one parasitic radiation stub, Example 1 and Example 2 are used to describe the embodiments. Among them, Example 1 corresponds to the scenario of one parasitic radiation stub, and Example 2 corresponds to the scenario of two parasitic radiation stubs.
[0035] Example 1
[0036] Please refer to Figure 1 , Figure 1 Shows a schematic structural diagram of a multi-parasitic element radiation array antenna implementation structure of Example 1, and this structure is applicable to the implementation layout of the antenna assembly.
[0037] This structure includes an antenna assembly, an antenna feed point position 10, a main body radiation stub 20, and a parasitic radiation stub 30. The frequency band of the parasitic radiation stub 30 is the same as or different from that of the main body radiation stub 20. In the examples of the present application, it is exemplified that the frequency bands of both the parasitic radiation stub 30 and the main body radiation stub 20 are the 2.4 GHz target frequency band.
[0038] Optionally, the form of the main body radiation stub 20 is one of monopole, IFA, PIFA, and Loop.
[0039] As Figure 1 shown, there is a parallel gap between the parasitic radiation stub 30 and the main body radiation stub 20, and the size of the parallel gap is determined according to the coupling amount.
[0040] Further, the parasitic radiation stub 30 wraps around the end of the main radiation stub 20 to enhance the coupling between the parasitic radiation stub 30 and the main radiation stub 20. Herein, both the main radiation stub 20 and the parasitic radiation stub 30 participate in radiation.
[0041] The number of parasitic radiation stubs 30 is determined according to the preset optimal antenna performance. Herein, the optimal antenna performance is based on the S11 parameter and the efficiency measured in a microwave anechoic chamber.
[0042] Among them, the S11 parameter is one of the important indicators for describing antenna performance and is usually referred to as the reflection coefficient or return loss. It measures the signal strength reflected from the antenna port back into the transmission line. Specifically, the S11 parameter represents the matching degree between the input signal and the antenna, that is, how much energy in the input signal is reflected back instead of being radiated by the antenna. The S11 parameter is usually expressed in decibels (dB), and a lower value indicates a smaller reflection loss of the antenna and better performance.
[0043] To obtain the optimal antenna performance, the reason for using the S11 parameter as the evaluation criterion in this application is that the S11 parameter directly reflects the matching effect of the antenna within a specific frequency band. By actually measuring the S11 parameter with a network analyzer, the reflection loss of the antenna under actual working conditions can be accurately evaluated. Further, after the S11 is adjusted, the antenna is placed in a microwave anechoic chamber to test the radiation efficiency and gain of the antenna, so as to determine the pros and cons of the antenna design.
[0044] In a specific solution, to optimize the antenna performance, a structure of a multi-parasitic element radiation array antenna is adopted. This antenna structure enhances the performance of the antenna by introducing parasitic radiation stubs beside the main radiation stub. The following is the content on how to obtain the optimal antenna performance in combination with the content of this application.
[0045] First, select the antenna type and layout. For various antenna types, such as monopole, IFA, PIFA, and Loop, select a suitable antenna type as the main radiation stub according to actual requirements.
[0046] Introduce parasitic radiation stubs. Parasitic radiation stubs are introduced beside the main radiation stub. These parasitic radiation stubs are arranged parallel to the main radiation stub, and the coupling effect is adjusted by controlling the gap between them. The number of parasitic radiation stubs can be determined according to the actual debugging results to achieve the optimal antenna performance.
[0047] Debug and optimize. According to the measurement results of the S11 parameter and the efficiency measured in a microwave anechoic chamber, the antenna is repeatedly debugged and optimized. The debugging methods include changing the effective electrical lengths of the main radiation stub and the parasitic radiation stub, and adjusting their positions and gaps to maximize the radiation efficiency and frequency band coverage performance of the antenna.
[0048] Finally, performance evaluation and comparison. Use the measured data in an anechoic chamber to compare the performance of the conventional antenna solution and the multi-parasitic element radiation array antenna solution. For example, the following charts show the performance improvement of the new solution relative to the conventional antenna solution in the 2.4 GHz band, and these data help to confirm the superiority of the new design.
[0049] For example, Example 1 and Example 2 show how to select and layout parasitic radiation branches according to specific requirements to optimize the antenna performance in the 2.4 GHz band. In Example 2, two parasitic radiation branches are used, and the performance improvement is more significant compared with the single parasitic radiation branch in Example 1, which proves the effectiveness of improving the antenna performance by increasing the number of parasitic radiation branches.
[0050] Therefore, combining the measurement of S11 parameters and the evaluation of actual efficiency can effectively guide the antenna design and debugging process to ensure the best antenna performance in a specific frequency band. In one possible implementation, the frequency bands of each branch are debugged by changing the effective electrical lengths of the main radiation branch 20 and the parasitic radiation branch 30, where the effective electrical length (i.e., the length, thickness, various winding shapes, the gap between branches, etc. of the antenna branch).
[0051] Among them, the main radiating element is the main radiating component in antenna design, which is used to transmit and receive wireless signals in a specific frequency band (such as 2.4 GHz or 5 GHz). It can be different types of antenna elements, such as monopole, IFA (Inverted F Antenna), PIFA (Planar Inverted F Antenna), Loop (loop antenna), etc.
[0052] The parasitic radiating element is a passive component, which is usually not directly connected to the feeding point, but affects the performance of the main antenna through electromagnetic coupling. The length and position of the parasitic radiating element will affect the coupling effect between it and the main radiating element.
[0053] In antenna design, in order to optimize the performance of a specific frequency band, this application proposes to debug by changing the effective electrical lengths of the main radiation branch and the parasitic radiation branch. That is, adjust the physical size or geometric shape of these antenna elements to better match the operating frequency of each branch band and optimize the radiation characteristics. The specific debugging process can include the following steps.
[0054] Determine the antenna frequency band and type. First, determine the frequency band to be optimized (such as 2.4 GHz), and select a suitable type of main radiating element (such as monopole, IFA, etc.).
[0055] Design and adjust parasitic radiation stubs. According to the design requirements, determine the positions and lengths of the parasitic radiation stubs. These radiation stubs usually run parallel to the main radiation stub, and the coupling amount between them and the main radiation stub can be controlled by adjusting their lengths and positions.
[0056] Optimize the coupling effect. By adjusting the positions and shapes of the parasitic radiation stubs, ensure that the coupling amount between them and the main radiation stub reaches the optimal state. The optimization of the coupling amount can be carried out through actual electromagnetic simulation software or physical tests.
[0057] Physical simulation and performance comparison. Conduct physical simulation or actual tests to compare the performance differences between the multiple parasitic element radiation array antenna structure (i.e., the structure containing parasitic radiation stubs) and the conventional antenna scheme. For example, in the 2.4 GHz frequency band, the author improved the antenna performance by adding parasitic radiation stubs, achieving a gain of approximately 2 dB.
[0058] Result analysis and adjustment. Analyze and compare the data, and adjust the number and positions of the parasitic radiation stubs according to the actual test results to further optimize the antenna performance.
[0059] [[ID=1-4]]In one example, the antenna design in Example 1 uses a single parasitic radiation stub, while the following Example 2 uses multiple parasitic radiation stubs. These designs optimize the performance in different antenna environments by adjusting the lengths and positions of each parasitic radiation stub and their coupling methods with the main radiation stub.
[0060] In summary, a method for optimizing the performance of a specific frequency band by adjusting the designs of the main radiation stub and parasitic radiation stubs in an antenna. This method is not only applicable to the 2.4 GHz frequency band but can also be extended to the antenna designs of other frequency bands to improve the antenna efficiency and performance of other frequency bands.
[0061] The following provides a schematic diagram of Example 1 of the physical simulation to compare with the conventional antenna implementation structure scheme.
[0062] As Figure 2 、 Figure 3 and Figure 4 shown, a schematic diagram of the physical simulation of the antenna assembly is shown. Figure 2 is the front view, Figure 3 is the top view, Figure 4 is the bottom view.
[0063] As can be seen from the figure, the antenna assembly is located at the camera decorative part at the bottom of the all-metal flat plate. The antenna environment is relatively poor, surrounded by metal on all sides, and there is only an opening in the metal at the camera decorative part. In this antenna environment, the antenna performances of the conventional antenna scheme and the multi-parasitic element radiation array antenna structure scheme are compared. Through the comparison data, it is found that the antenna performance of the multi-parasitic element radiation array antenna structure scheme is better than that of the conventional antenna scheme. The comparison data of the antenna performances of the conventional structure scheme and the multi-parasitic element radiation array antenna structure scheme are as Figure 5 and Figure 6 shown, and the respective antenna efficiencies and gains are shown in Table 1 and Table 2.
[0064] Table 1. Antenna Efficiency and Gain of the Conventional Scheme in Example 1
[0065]
[0066] Table 2. Efficiency and Gain of the Multi-Parasitic Element Radiation Array Antenna Scheme in Example 1
[0067]
[0068] It can be seen from the comparison data of the above two antenna schemes that the antenna performance of the multi-parasitic element radiation array antenna scheme is improved by 2 dB at 2.4G, and the performance improvement is obvious in the same antenna environment. The antenna implementation structure of the present application adds a 2.4G parasitic radiation stub at the 2.4G frequency band, thereby improving the overall antenna performance.
[0069] Example 2
[0070] Please refer to Figure 7 , Figure 7 which shows a schematic structural diagram of a multi-parasitic element radiation array antenna implementation structure in Example 2, and this structure is applicable to the implementation layout of the antenna assembly.
[0071] This structure includes an antenna assembly, an antenna feed point position 10, a main body radiation stub 20, and two parasitic radiation stubs, denoted as the first parasitic radiation stub 30 and the second parasitic radiation stub 40 respectively.
[0072] Furthermore, for the case where there is more than one parasitic radiation stub similar to Example 2, the following description is provided. In response to the presence of at least N parasitic radiation stubs, where N is a positive integer, they are sequentially denoted as the Nth parasitic radiation stub according to the proximity relationship.
[0073] As described above, the first parasitic radiation stub extends from a position parallel to the main body radiation stub 20. Starting from the second segment, that is, when N≥2, the Nth parasitic radiation stub is arranged in a row parallel to the main body radiation stub 20 in sequence.
[0074] Further, taking N as 2 as an example, when N is 2, the range of the first parasitic radiation stub from the main body radiation stub 20 is within zero to one - quarter of the wavelength of the first frequency band, and the range of the second parasitic radiation stub from the first parasitic radiation stub is within zero to one - quarter of the wavelength of the second frequency band, where the first frequency band is the corresponding frequency band of the first parasitic radiation stub, and the second frequency band is the corresponding frequency band of the second parasitic radiation stub.
[0075] The following provides a schematic diagram of the second example of physical simulation to compare with the conventional antenna implementation structure scheme.
[0076] Such as Figure 8 、 Figure 9 、 Figure 10 and Figure 11 shown, showing the physical simulation schematic diagram of the antenna assembly, Figure 8 showing the front - view schematic diagram of the physical simulation of the antenna assembly in the second example; Figure 9 showing the side - view interface schematic diagram of the physical simulation of the antenna assembly in the second example; Figure 10 showing the partially enlarged side - view cross - section schematic diagram of the physical simulation of the antenna assembly in the second example; Figure 11 showing the bottom - view schematic diagram of the physical simulation of the antenna assembly in the second example.
[0077] As can be seen from the figure, the antenna assembly is located between the all - metal flat - panel screen and the metal bottom case. There is a gap between the back basket of the all - metal flat - panel screen and the side of the metal bottom case, and the energy of the antenna assembly radiates outwards from the gap.
[0078] In the second example, the implementation form of the antenna is a cavity antenna composed of a PCB + shielding cover. The front end (i.e., the gap between the back basket of the all - metal flat - panel screen and the side of the metal bottom case) is the antenna Pattern, and the back end (i.e., between the back basket of the all - metal flat - panel screen and the metal bottom case) is a cavity formed by the PCB and the shielding cover (the shielding cover is pasted onto the PCB and forms five sealed surfaces, with one sealed surface opening towards the antenna Pattern surface). The medium inside the cavity is air, that is, the front end of the antenna assembly is the antenna Pattern, the back end of the antenna assembly is a cavity composed of the PCB and the shielding cover, and the medium inside the cavity is air.
[0079] Under this antenna environment, the applicant compared the antenna performance of the conventional antenna scheme and the multi - parasitic - element radiation array antenna scheme. The comparison data of the antenna performance of the conventional structure scheme and the multi - parasitic - element radiation array antenna structure scheme are as Figure 12 and Figure 13 shown, and their respective antenna efficiencies and gains are shown in Table 3 and Table 4. Table 3. Antenna efficiency and gain of the conventional scheme in the second example
[0080]
[0081] Table 4. Efficiency and Gain of the Multiple Parasitic Element Radiation Array Antenna Solution in Example 2
[0082]
[0083] As can be seen from Example 2, the multiple parasitic element radiation array antenna solution provided by this application improves the antenna performance at 2.4G by 2dB, and the performance improvement is obvious in the same antenna environment. That is, by adding two 2.4G parasitic radiation branches in the 2.4G frequency band, the overall antenna performance is improved.
[0084] In summary, taking the improvement of the 2.4GHz frequency band as an example, the implementation details are shown. First, a 2.4GHz main body radiation branch is led out from the antenna feed point. The antenna form of this main body radiation branch can be various (such as monopole, IFA, PIFA, Loop, etc.). In addition, a 2.4GHz parasitic radiation branch extends at a position parallel to the main body radiation branch. The parasitic radiation branch is parallel to the main body radiation branch and maintains a certain gap (to control the coupling amount), or it can also be like the parasitic radiation branch in Example 1 that wraps around the end of the local radiation branch (to increase the coupling amount). Among them, the number of parasitic radiation branches can be increased according to the actual debugging situation to achieve the best antenna performance. For example, one parasitic radiation branch is used in Example 1, and two parasitic radiation branches are used in Example 2. The specific applications of this solution are diverse, including but not limited to the following types: applications in the form of single FPC or PCB (Example 1), applications combined with cavity antennas (Example 2), various forms of bracket + FPC flexible board attachment, various forms of bracket + LDS / LCP form, bracket + iron part form, single iron part form, and other antenna forms that can use this solution. The application scope of this solution includes but not limited to the 2.4G + 5G + 6E antenna frequency bands shown in the above examples, and can also be used for antenna designs in other arbitrary frequency bands. The implementation method remains the same, and the corresponding frequency band required can be adjusted by changing the effective electrical lengths of the main body radiation branch and the parasitic radiation branch.
[0085] In the design of this utility model, the implementation structure of the multiple parasitic element radiation array antenna provides an antenna implementation structure that can not only ensure a simple and beautiful structural design but also be applied to complex antenna environments and can significantly improve the antenna efficiency. This implementation structure of the multiple parasitic element radiation array antenna uses both the main body radiation branch and the parasitic radiation branch to participate in the radiation design to achieve the purpose of improving the antenna performance. And the number of parasitic radiation branches can be selected according to the antenna performance requirements, that is, it is applicable to various antenna modes, such as applications in the form of single FPC or PCB, applications combined with cavity antennas, various forms of bracket + FPC flexible board attachment, various forms of bracket + LDS / LCP form, and also bracket + iron part form, single iron part form, ensuring the wide applicability of the antenna implementation structure provided by this solution.
[0086] The above are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. An implementation structure of a multi-parasitic element radiation array antenna, characterized in that, The described structure is applicable to the implementation layout of an antenna assembly, and the structure includes: an antenna feed point position (10), a main body radiation stub (20), and at least one parasitic radiation stub (30), where the frequency band of the parasitic radiation stub (30) is the same as or different from the frequency band of the main body radiation stub (20); the main body radiation stub (20) is led out at the antenna feed point position (10); the parasitic radiation stub (30) extends at a position parallel to the main body radiation stub (20).
2. The implementation structure of the multi-parasitic element radiation array antenna according to claim 1, wherein The form of the main body radiation stub (20) is one of monopole, IFA, PIFA, and Loop.
3. The implementation structure of the multi-parasitic element radiation array antenna according to claim 1, wherein There is a parallel gap between the parasitic radiation stub (30) and the main body radiation stub (20), and the size of the parallel gap is determined according to the coupling amount.
4. The implementation structure of the multi-parasitic element radiation array antenna according to claim 1, characterized in that, The parasitic radiation stub (30) wraps around the end of the main body radiation stub (20) to increase the coupling amount between the parasitic radiation stub (30) and the main body radiation stub (20).
5. The implementation structure of the multi-parasitic element radiation array antenna according to claim 1, wherein The number of the parasitic radiation stubs (30) is determined according to the preset optimal antenna performance.
6. The implementation structure of the multi-parasitic element radiation array antenna according to claim 1, characterized in that, The main body radiation stub (20) and the parasitic radiation stub (30) participate in radiation simultaneously.
7. The implementation structure of the multi-parasitic element radiation array antenna according to any one of claims 1 to 6, characterized in that The frequency bands of each stub are adjusted by changing the effective electrical lengths of the main body radiation stub (20) and the parasitic radiation stub (30).
8. The implementation structure of the multi-parasitic element radiation array antenna according to any one of claims 1 to 6, characterized in that, In response to the presence of at least N parasitic radiation stubs (30), where N is a positive integer, they are sequentially denoted as the Nth parasitic radiation stub according to the proximity relationship; The first parasitic radiation stub extends at a position parallel to the main body radiation stub (20), and the Nth parasitic radiation stub is arranged in a row parallel to the main body radiation stub (20) in sequence.
9. The implementation structure of the multi-parasitic element radiation array antenna according to claim 8, characterized in that When N is 2, the range of the first parasitic radiation stub from the main body radiation stub (20) is within zero to one - quarter of the wavelength of the first frequency band, and the range of the second parasitic radiation stub from the first parasitic radiation stub is within zero to one - quarter of the wavelength of the second frequency band, where the first frequency band is the corresponding frequency band of the first parasitic radiation stub, and the second frequency band is the corresponding frequency band of the second parasitic radiation stub.