Antenna pointing device and fttr equipment

Abstract

The application discloses an antenna directing device and an FTTR equipment, and relates to the fields of microwaves, networks and the like. The antenna directing device is used for cooperating with a target antenna structure, and comprises a first dielectric plate, two first radiation arms and a patch device. The two first radiation arms and the patch device are arranged on the first dielectric plate, and the two first radiation arms are connected with the patch device respectively. The patch device is used for adjusting the coupling current of the antenna directing device. The application can at least solve the problem that the antenna is seriously interfered by high-speed signal radiation.

Description

Technical Field

[0001] This application belongs to the technical fields of microwave, network, etc., and specifically relates to an antenna pointing device and FTTR equipment. Background Technology

[0002] WiFi technology, as an important application of wireless communication technology, plays a vital role in modern industrial development and daily life. However, high-speed signal radiation interference on the circuit boards of existing Fiber to the Room (FTTR) equipment causes severe degradation of radio frequency performance, affecting the coverage range of FTTR equipment.

[0003] Currently, the common method to avoid high-speed signal radiation interference is to use shielding covers. However, with the decreasing size of FTTR devices and the increasing distance between the antenna and the board, the antenna is more susceptible to interference from high-speed signals from the board. At the same time, the board design and wiring are becoming more complex. Even with certain shielding measures, high-speed signal interference leakage is still inevitable, leading to a decrease in Wi-Fi performance. Utility Model Content

[0004] The purpose of this application is to provide an antenna pointing device and an FTTR device, which can at least solve the problem of severe interference from high-speed signal radiation on the antenna.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides an antenna guiding device for use with a target antenna structure. The antenna guiding device includes: a first dielectric substrate, two first radiating arms, and a patch device. The two first radiating arms and the patch device are all disposed on the first dielectric substrate, and the two first radiating arms are respectively connected to the patch device. The patch device is used to adjust the coupling current of the antenna guiding device. The positional connection relationship between the two first radiating arms and the patch device is configured to be consistent with the positional connection relationship between the two second radiating arms and the radio frequency feed in the target antenna structure.

[0007] This application also provides an FTTR device, including: a target antenna structure, an interference source, and the antenna pointing device described above;

[0008] The antenna guiding device is located between the target antenna structure and the interference source.

[0009] The antenna directing device in this embodiment can generate a coupling current under the radiation of the target antenna structure and perform secondary radiation through two first radiating arms. During the secondary radiation process, the radiation field of the target antenna structure can be weakened or enhanced, thereby changing the radiation field pattern of the target antenna structure. Furthermore, the radiation of the coupling current can be adjusted through patch devices, thereby achieving the effect of pattern reconstruction. This can effectively reduce signal radiation interference and effectively control the maximum gain of the target antenna structure. In addition, the secondary radiation of the first radiating arms can enhance or weaken the signal radiated by the corresponding second radiating arms, so as to adjust the directing effect according to actual needs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the antenna assembly disclosed in the embodiments of this application;

[0011] Figure 2 This application discloses a direction pattern for achieving a strong guiding effect through a guiding structure.

[0012] Figure 3 This is a direction pattern for achieving a weak guiding effect through a guiding structure, as disclosed in an embodiment of this application.

[0013] Figure 4 This is the radiation pattern of a single antenna structure without a guide structure disclosed in the embodiments of this application.

[0014] Explanation of reference numerals in the attached figures:

[0015] 10-Antenna guiding device; 11-First dielectric substrate; 12-First radiating arm; 121-First radiating strip; 122-Second radiating strip; 123-First connecting strip; 13-Patch device;

[0016] 20 - Target antenna structure; 21 - Second dielectric substrate; 22 - Second radiating arm; 221 - Third radiating strip; 222 - Fourth radiating strip; 223 - Second connecting strip; 23 - Radio frequency feed component. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0020] refer to Figures 1 to 4 This application discloses an antenna guiding device 10 for use with a target antenna structure 20. The disclosed antenna guiding device 10 includes a first dielectric substrate 11, two first radiating arms 12 and a patch device 13.

[0021] The first dielectric substrate 11 is a basic component that provides a support and mounting base for components such as the first radiating arm 12 and the patch device 13. In this embodiment, both first radiating arms 12 and patch devices 13 are disposed on the first dielectric substrate 11 so that the first radiating arms 12 and patch devices 13 can be stably mounted through the first dielectric substrate 11.

[0022] Two first radiating arms 12 are respectively connected to the surface mount device 13 to realize signal transmission between the two first radiating arms 12 and the surface mount device 13. Optionally, a pad can be reserved on each first radiating arm 12, and the surface mount device 13 can be connected to the pad by soldering the two first radiating arms 12, which can ensure both a strong connection and stable signal transmission.

[0023] The patch device 13 is used to adjust the coupling current of the antenna directing device 10. Specifically, by adjusting the physical parameters of the patch device 13, the magnitude and phase of the coupling current on the antenna directing device 10 can be adjusted to facilitate pattern reconstruction.

[0024] The antenna directing device 10 in this embodiment can generate a coupling current under the radiation of the target antenna structure 20, and then perform secondary radiation through the two first radiating arms 12. During the secondary radiation process, the radiation field of the target antenna structure 20 can be weakened or enhanced, thereby changing the radiation field pattern of the target antenna structure 20. Furthermore, the radiation of the coupling current can be adjusted through the patch device 13, thereby achieving the effect of pattern reconstruction. The antenna directing device 10 can also adjust the pattern reconstruction according to high-speed signal radiation interference to ensure the coverage capability of Wi-Fi. Based on this, signal radiation interference can be effectively reduced, while the maximum gain of the target antenna structure can be effectively controlled.

[0025] Compared to related technologies that address changes in radiation requirements by adjusting the length and distance of the radiation arm and the overall structure of the guiding device, the embodiments of this application can achieve the effect of radiation pattern reconstruction by adjusting the parameters of the patch device 13, thereby reducing the complexity of adjustment and improving the efficiency of adjustment.

[0026] In addition, the antenna guiding device 10 in this embodiment includes fewer components, has a simple structure, and is small in size and weight, making it easy to apply to small-volume FTTR equipment; it is also easy to adjust, has strong applicability, and has no special requirements on the type of target antenna structure 20, FTTR equipment, etc.

[0027] In some embodiments, the target antenna structure 20 may include two second radiating arms 22 and an RF feeder 23, with the two second radiating arms 22 respectively connected to the RF feeder 23. Thus, the RF feeder 23 can receive the feed signal and transmit it to the two second radiating arms 22 respectively, and finally radiate it to the outside through the two second radiating arms 22.

[0028] To improve the guiding effect of the antenna guiding device 10 on the target antenna structure 20, in this embodiment, the positional connection relationship between the two first radiating arms 12 and the patch device 13 is set to be consistent with the positional connection relationship between the two second radiating arms 22 and the RF feed device 23 in the target antenna structure 20, such as... Figure 1 As shown. Based on this configuration, the secondary radiation effect of the first radiation arm 12 can enhance or weaken the signal radiated by the corresponding second radiation arm 22, so as to adjust the guiding effect according to actual needs.

[0029] Optionally, the two second radiating arms 22 can be connected to opposite sides of the radio frequency feed 23 to increase the distribution area of ​​the two second radiating arms 22 in space, which is beneficial to increasing the radiation area of ​​the target antenna structure 20.

[0030] Accordingly, the two first radiating arms 12 can be connected to the opposite sides of the patch device 13 to adjust the current magnitude and phase distribution of the two first radiating arms 12, thereby achieving the effect of superimposing the current radiation of the target antenna structure 20, and thus adjusting the difference in the strength of the directing effect.

[0031] In some more specific embodiments, two second radiating arms 22 are symmetrically arranged on opposite sides of the radio frequency feeder 23. This design helps to reduce reflection loss, thereby improving energy radiation efficiency.

[0032] Correspondingly, the two first radiating arms 12 are symmetrically arranged on opposite sides of the surface mount device 13. This design can help achieve more stable input impedance characteristics and reduce reflection loss; in addition, it can also quickly achieve the effect of superimposed current radiation of the first radiating arm 12 and the second radiating arm 22.

[0033] In some embodiments, the shapes of the two first radiating arms 12 can be configured to correspond to the shapes of the two second radiating arms 22 in the target antenna structure 20. Based on this design, the electrical dimensions (e.g., length, diameter, etc.) of the second radiating arms 22 are more easily coordinated with the first radiating arms 12, which helps to achieve more stable impedance matching and thus reduce reflection loss.

[0034] In some embodiments, the surface mount device 13 may include at least one of a capacitor, a resistor, or an inductor. For example, the surface mount device 13 may include only a capacitor, a resistor, or an inductor; it may also include both a capacitor and a resistor, or both a capacitor and an inductor, or both a resistor and an inductor; or it may include a capacitor, a resistor, and an inductor. The specific configuration of the surface mount device 13 can be selected based on the actual adjustment requirements of the coupling current.

[0035] Increasing the resistance and capacitance can weaken the directional effect of the radiation pattern, while decreasing the resistance and capacitance can strengthen it; conversely, increasing the capacitance can increase the directional effect, while decreasing the capacitance can weaken it. Different methods result in different changes to the radiation pattern, and the appropriate method can be chosen based on the actual effect.

[0036] Optionally, when the surface mount device 13 includes only capacitors, the capacitance value can range from 0.5pF to 10pF, such as 0.5pF, 1.0pF, 2.0pF, 4.0pF, 6.0pF, 8.0pF, 10.0pF, etc. Of course, other capacitance values ​​are also possible, as long as they can meet the directional requirements of the radiation pattern. The specific value is not limited.

[0037] When the surface mount device 13 includes only resistors, the resistance value can range from 0Ω to 50Ω, such as 0Ω, 5Ω, 10Ω, 20Ω, 40Ω, 50Ω, etc. Of course, other resistance values ​​are also possible, as long as they can meet the directional requirements of the radiation pattern. The specific value is not limited.

[0038] When the surface mount device 13 includes only an inductor, the inductance value can range from 1nh to 9.1mh, such as 1nh, 2nh, 4nh, 7nh, 9nh, 9.1nh, etc. Of course, other inductance values ​​are also possible, as long as they can meet the directional requirements of the radiation pattern. The specific value is not limited.

[0039] It should be noted that when the surface mount device 13 includes at least two of the following: capacitor, resistor and inductor, at least two can be adjusted separately, as long as the directional effect requirement of the radiation pattern is met, and the specific values ​​are not limited.

[0040] Based on the antenna guiding device 10 described above, this application also discloses an FTTR device, which includes a target antenna structure 20, an interference source, and the antenna guiding device 10 described above.

[0041] The antenna directing device 10 is positioned between the target antenna structure 20 and the interference source. Based on this, the radiation pattern of the target antenna structure 20 can be adjusted using the antenna directing device 10 to reconstruct the radiation pattern, thereby reducing the radiation from the target antenna structure 20 to the interference source. Furthermore, the antenna directing device 10 can be positioned corresponding to the interference source to further reduce the radiation from the target antenna structure 20 to the interference source. For example, the antenna directing device 10 and the interference source can be positioned corresponding to each other in the X-direction, or in the Y-direction. In addition, the antenna directing device 10 and the interference source can also be positioned corresponding to each other in other directions within the XY plane; the specific distribution can be selected according to actual needs.

[0042] It should be noted that the degree of high-speed interference varies between different FTTR devices. Reducing the radiation performance of the target antenna structure 20 at the interference signal may lead to an increase in its directional energy, resulting in a rapid increase in the maximum gain of the target antenna structure 20. In this embodiment, the radiation of the coupling current can be quickly adjusted by adjusting the parameter values ​​(e.g., resistance, inductance, and capacitance) of the patch device 13, which is limited by the size of the FTTR device, thereby achieving the effect of pattern reconstruction. Therefore, the normal radiation gain can be prevented from becoming too large while improving the reception of interference signals, without increasing the size of the target antenna structure 20 and the antenna directing device 10.

[0043] In the absence of interference sources (such as high-speed signal interference), only the target antenna structure 20 is operational, so as to radiate omnidirectionally in the plane through the target antenna structure 20, such as horizontal omnidirectional radiation in the XY plane.

[0044] When there is an interference source on the left side of the target antenna (i.e., in the -X direction), it is necessary to reduce the radiation of the target antenna structure 20 in the -X direction. In this way, an antenna guiding device 10 can be set on the left side of the target antenna structure 20 to reconstruct the radiation pattern under the action of the antenna guiding device 10, thereby adjusting the guiding effect of the target antenna structure 20.

[0045] When there is an interference source on the right side of the target antenna (i.e., in the +X direction), it is necessary to reduce the radiation of the target antenna structure 20 in the +X direction. In this way, an antenna guiding device 10 can be set on the right side of the target antenna structure 20 to reconstruct the radiation pattern under the action of the antenna guiding device 10, thereby adjusting the guiding effect of the target antenna structure 20.

[0046] In this embodiment, when the target antenna structure 20 exists alone, the current on the target antenna structure 20 radiates signals, achieving omnidirectional radiation of the Wi-Fi signal amplitude in the horizontal direction (XY direction). An induced current (i.e., coupling current) is generated on the antenna guiding device 10 for secondary radiation. During this secondary radiation, the radiation field in some directions weakens due to opposite phases, while the radiation field in other directions strengthens due to equal phases, thereby altering the random radiation field pattern. Furthermore, the current amplitude and magnitude can be adjusted using the patch device 13, thus achieving the effect of pattern reconstruction.

[0047] In some embodiments, the shape of the antenna directing device 10 can be consistent with the shape of the target antenna structure 20. This makes it easier to coordinate the electrical dimensions (e.g., length, diameter, etc.) of the antenna directing device 10 with the target antenna structure 20, which helps to achieve more stable impedance matching and thus reduce reflection loss. In addition, the consistent shape allows the distribution of coupling current on the antenna directing device 10 to be closer to that of the target antenna structure 20, which facilitates the optimization of phase superposition and thus obtains a sharper main lobe and lower side lobes.

[0048] Optionally, the first dielectric plate 11 and the second dielectric plate 21 can both be rectangular plates, square plates, etc.; the first radiating arm 12 and the second radiating arm 22 can both be bent structures, arc structures, etc.

[0049] In some embodiments, the antenna guiding device 10 and the target antenna structure 20 can be disposed on the same dielectric substrate. In this way, the input impedance can be flexibly adjusted through coplanar coupling, which is beneficial to achieve a wider impedance bandwidth and improve impedance matching and bandwidth. It can also help maintain the consistency of the radiation pattern in the operating frequency band, reduce high-frequency distortion, and improve omnidirectional and directional performance. In addition, it can facilitate design and reduce structural complexity and cost.

[0050] In some embodiments, the target antenna structure 20 may include a second dielectric substrate 21, two second radiating arms 22, and an RF feed 23. The two second radiating arms 22 and the RF feed 23 are both disposed on the second dielectric substrate 21 to stably mount the second radiating arms 22 and the RF feed through the second dielectric substrate 21. It should be noted that when the antenna guiding device 10 and the target antenna structure 20 are disposed on the same dielectric substrate, the first dielectric substrate 11 and the second dielectric substrate 21 can be connected together to form a single dielectric substrate. Alternatively, the first dielectric substrate 11 and the second dielectric substrate 21 can be replaced by a single dielectric substrate to simultaneously support the first radiating arm 12, the second radiating arm 22, the patch device 13, and the RF feed 23.

[0051] Two second radiating arms 22 are respectively connected to the radio frequency feed element 23 to realize signal transmission between the two second radiating arms 22 and the radio frequency feed element. Optionally, the two second radiating arms 22 can be connected to the radio frequency feed element 23 by welding, which can ensure both a strong connection and stable signal transmission. In other embodiments, the two second radiating arms 22 can also be bonded to the radio frequency feed element 23 with conductive adhesive, thereby achieving signal transmission while ensuring a strong connection.

[0052] Optionally, the ratio of the radiation region length of each second radiation arm 22 to the radiation region length of the corresponding first radiation arm 12 ranges from 0.5 to 1.0, for example, including 0.5, 0.6, 0.75, 0.9, 1.0, etc. It should be noted that the larger the radiation region length of the second radiation arm 22, the stronger the directing effect; conversely, the smaller the radiation region length of the second radiation arm 22, the weaker the directing effect. Embodiments of this application can adjust the directing effect by changing the radiation region length of the second radiation arm 22.

[0053] In some embodiments, each second radiating arm 22 may include a third radiating strip 221, a fourth radiating strip 222, and a second connecting strip 223. The third radiating strip 221 and the second connecting strip 223 both extend along a first direction and are spaced apart along a second direction. The fourth radiating strip 222 extends along the second direction and connects between the third radiating strip 221 and the second connecting strip 223. The second connecting strip 223 is connected to the RF feed member 23. The first and second directions both extend along the surface of the second dielectric substrate 21 and intersect. Exemplarily, the first and second directions may be perpendicular to each other.

[0054] Based on the above design, the second radiating arm 22 can be made into a bent structure, such as a right-angle bend. By bending the wiring, the overall area occupied by the second radiating arm 22 can be reduced without increasing the external size of the target antenna structure 20, thereby making the target antenna structure 20 more compact. In addition, the bent structure is equivalent to increasing the current path length, which can help reduce the resonant frequency of the target antenna structure 20, making it suitable for low-frequency design.

[0055] It should be noted that the antenna guiding device 10 can be equivalent to the target antenna structure 20. To ensure that the shapes of the first radiating arm 12 and the second radiating arm 22 are consistent, in this embodiment, each first radiating arm 12 may include a first radiating strip 121, a second radiating strip 122, and a first connecting strip 123. The first radiating strip 121 and the first connecting strip 123 both extend along a first direction and are spaced apart along a second direction. The second radiating strip 122 extends along the second direction and connects between the first radiating strip 121 and the first connecting strip 123. The first connecting strip 123 is connected to the patch device 13. Both the first and second directions extend along the surface of the first dielectric substrate 11 and intersect. For example, the first and second directions may be perpendicular to each other.

[0056] Based on the above design, the first radiating arm 12 can also be in a bent structure, such as a right-angle bend. By bending the wiring, the overall area occupied by the first radiating arm 12 can be reduced without increasing the external size of the antenna guiding device 10, thereby making the antenna guiding device 10 more compact. In addition, the bent structure is equivalent to increasing the current path length, which can help reduce the resonant frequency of the antenna guiding device 10, making it suitable for low-frequency design.

[0057] Optionally, the radiation pattern can be reconstructed by adjusting the length of the first radiating arm 12. Specifically, the lengths L1 of the first radiating strip 121 and L2 of the second radiating strip 122 of each of the two first radiating arms 12 are adjusted to achieve a change in the phase of the coupling current. Specifically, the coupling current phase of the second radiating strip 122 at the +X direction is the same (i.e., the phase difference is equal to 0), which can increase the intensity; at the -X direction, the coupling current generated by the second radiating strip 122 has the opposite phase (i.e., the phase difference is equal to 180°), which can reduce the intensity.

[0058] Therefore, compared to a target antenna structure 20 without an antenna pointing device 10, such as Figure 4 As shown, in this embodiment of the application, the directional effect of the radiation pattern can be weakened by reducing the length of the first radiation strip 121 and the second radiation strip 122, such as... Figure 3 As shown; conversely, by increasing the length of the first radiating bar 121 and the second radiating bar 122, the directional effect of the radiation pattern is enhanced, as shown. Figure 2 As shown.

[0059] In addition, the magnitude and phase of the coupling current on the antenna guiding device 10 can be adjusted to further reconstruct the radiation pattern, as the distance L3 between the antenna guiding device 10 and the target antenna structure 20 can be adjusted.

[0060] In summary, this application proposes an antenna guiding device 10 for antenna design and high-speed signal interference cancellation in FTTR equipment. This antenna guiding device 10 is applicable to FTTR equipment with various high-speed signals and Wi-Fi modules. Through architectural design and adjustments to the reconfigurable parts, the antenna pattern can be reconstructed in a small space, quickly and effectively reducing interference from high-speed signals from the FTTR equipment's motherboard. At the same time, it effectively controls the maximum gain of the target antenna structure 20, ensuring that the FTTR equipment's transmission power meets regulatory requirements. Furthermore, this antenna guiding device 10 is small in size, simple in design, low in cost, and highly applicable, and can be used in various types of FTTR equipment.

[0061] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An antenna pointing device for use with a target antenna structure (20), characterized in that, The antenna guiding device (10) includes: a first dielectric substrate (11), two first radiating arms (12) and a patch device (13). The two first radiating arms (12) and the patch device (13) are both disposed on the first dielectric substrate (11), and the two first radiating arms (12) are respectively connected to the patch device (13). The patch device (13) is used to adjust the coupling current of the antenna guiding device (10). The positional connection relationship between the two first radiating arms (12) and the patch device (13) is set to be consistent with the positional connection relationship between the two second radiating arms (22) and the radio frequency feed (23) in the target antenna structure (20).

2. The antenna pointing device according to claim 1, characterized in that, The shapes of the two first radiating arms (12) are configured to correspond to the shapes of the two second radiating arms (22) in the target antenna structure (20).

3. The antenna pointing device according to claim 1, characterized in that, The patch device (13) includes at least one of a capacitor, a resistor, or an inductor.

4. The antenna pointing device according to claim 3, characterized in that, When the patch device (13) includes only a capacitor, the capacitance value of the capacitor ranges from 0.5pF to 10pF; When the patch device (13) consists only of resistors, the resistance value of the resistors ranges from 0Ω to 50Ω; When the patch device (13) includes only an inductor, the inductance value of the inductor ranges from 1nh to 9.1nh.

5. An FTTR device, characterized in that, include: The target antenna structure (20), the interference source, and the antenna guiding device (10) according to any one of claims 1 to 4. The antenna guiding device (10) is located between the target antenna structure (20) and the interference source.

6. The FTTR device according to claim 5, characterized in that, The shape of the antenna guiding device (10) is consistent with the shape of the target antenna structure (20).

7. The FTTR device according to claim 5, characterized in that, The antenna guiding device (10) and the target antenna structure (20) are mounted on the same dielectric substrate.

8. The FTTR device according to any one of claims 5 to 7, characterized in that, The target antenna structure (20) includes a second dielectric substrate (21), two second radiating arms (22) and an RF feed (23). The two second radiating arms (22) and the RF feed (23) are both disposed on the second dielectric substrate (21), and the two second radiating arms (22) are respectively connected to the RF feed (23). The ratio of the radiation zone length of each second radiation arm (22) to the radiation zone length of the corresponding first radiation arm (12) ranges from 0.5 to 1.

0.

9. The FTTR device according to claim 8, characterized in that, Each of the second radiating arms (22) includes a third radiating strip (221), a fourth radiating strip (222), and a second connecting strip (223). The third radiating strip (221) and the second connecting strip (223) both extend along a first direction and are spaced apart along a second direction. The fourth radiating strip (222) extends along the second direction and connects between the third radiating strip (221) and the second connecting strip (223). The second connecting strip (223) is connected to the radio frequency feed (23). Each of the first radiating arms (12) includes a first radiating strip (121), a second radiating strip (122), and a first connecting strip (123). The first radiating strip (121) and the first connecting strip (123) extend along a first direction and are spaced apart along a second direction. The second radiating strip (122) extends along the second direction and connects between the first radiating strip (121) and the first connecting strip (123). The first connecting strip (123) is connected to the patch device (13). The first direction and the second direction intersect.

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