UWB antenna module, UWB antenna module and washing equipment

Abstract

Embodiments of the present application provide a UWB antenna module, a UWB antenna module and a washing equipment. The UWB antenna module comprises: a circuit board, which is sequentially stacked with a radiation layer, a ground layer and a feed layer along the thickness direction of the circuit board; a radiation unit, which is arranged on the radiation layer and comprises a first radiation antenna unit and a second radiation antenna unit arranged at intervals, wherein the first radiation antenna unit or the second radiation antenna unit is provided with a feed hole, and the feed hole is electrically connected with the feed layer; a ground column, which is arranged on the first radiation antenna unit and the second radiation antenna unit, and a plurality of ground columns are arranged on the first radiation antenna unit and the second radiation antenna unit, and the plurality of ground columns penetrate the radiation layer; one end of each ground column is electrically connected with the corresponding radiation antenna unit, the other end is electrically connected with the ground layer, and all the ground columns of the two radiation antenna units are in electrical communication with each other in the ground layer.

Description

Technical Field

[0001] This application relates to the field of antenna design technology, and more specifically, to a UWB antenna module, a UWB antenna assembly, and a washing device. Background Technology

[0002] Existing planar PCB surface-mount ultra-wideband (UWB) antenna modules typically arrange the radiating element, ground plane, and feed network on the same printed circuit board layer, relying on in-plane extended metal patterns to form a 1 / 4λ or 1 / 2λ resonant path. This structure exposes the following drawbacks in scenarios with limited internal height and usable area, such as washing machines: 1) The radiation path needs to extend in the plane to meet the resonant electrical size requirements such as 1 / 4 wavelength and 1 / 2 wavelength, which results in a large planar footprint of the antenna module, making it difficult to adapt to small installation spaces; 2) To ensure radiation performance and impedance matching, traditional antennas need to have a large ground plane and a sufficient clearance area, which further exacerbates the size redundancy problem and limits their application in scenarios with limited installation locations.

[0003] 3) The radiating elements of existing UWB antenna modules are mostly integral metal patches. Some solutions achieve miniaturization by reducing the size of the radiating elements, but this easily leads to a series of performance degradation problems such as narrowing of bandwidth, pattern distortion, insufficient signal stability and reduced radiation efficiency.

[0004] Therefore, how to design a planar PCB surface-mount UWB antenna module that is compact in structure and small in size, can be adapted to narrow installation locations, and can ensure stable bandwidth, radiation efficiency and impedance characteristics has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a UWB antenna module, a UWB antenna module and a washing device to solve at least one technical defect in the prior art.

[0006] According to a first aspect of this application, a UWB antenna module is provided. The UWB antenna module includes: The circuit board has a radiation layer, a ground layer and a power supply layer stacked sequentially along its thickness direction; A radiating element is disposed on the radiating layer and includes a first radiating antenna element and a second radiating antenna element disposed at intervals. The first radiating antenna element or the second radiating antenna element is provided with a feed hole, and the feed hole is electrically connected to the feed layer. Grounding posts are provided on both the first radiating antenna unit and the second radiating antenna unit, and the grounding posts penetrate the radiating layer. One end of each grounding post is electrically connected to the corresponding radiating antenna unit, and the other end is electrically connected to the grounding layer. All grounding posts of the two radiating antenna units are electrically connected to each other in the grounding layer.

[0007] Optionally, the transmitting unit and / or receiving unit of the UWB antenna module is configured as the radiating unit.

[0008] Optionally, the circuit board is defined with a length direction and a width direction, and the first radiating antenna element and the second radiating antenna element are spaced apart along the width direction of the circuit board.

[0009] Optionally, the side of the first radiating antenna unit away from the second radiating antenna unit, and the side of the second radiating antenna unit away from the first radiating antenna unit, are each provided with a plurality of grounding posts arranged at intervals.

[0010] Optionally, the feed hole of the radiating element is disposed on the second radiating antenna element; and along the width direction of the circuit board, the feed hole is spaced apart from the grounding post disposed on the second radiating antenna element.

[0011] Optionally, along the length of the circuit board, the feed hole is located in the middle region of the second radiating antenna element.

[0012] Optionally, the first radiating antenna unit and the second radiating antenna unit are symmetrically arranged about a first reference, which extends along the length direction of the circuit board.

[0013] Optionally, the transmitting unit includes a first transmitting antenna unit and a second transmitting antenna unit arranged at intervals; The receiving unit includes a first receiving antenna unit and a second receiving antenna unit that are spaced apart. The first transmitting antenna unit and the first receiving antenna unit are symmetrically arranged about a second reference, and the second transmitting antenna unit and the second receiving antenna unit are symmetrically arranged about the second reference, which extends along the width direction of the circuit board.

[0014] Optionally, along the length of the circuit board, a first solder mask layer is provided on each side of the radiating unit, and the minimum distance d1 from the edge of the radiating unit to the edge of the first solder mask layer is ≥3mm.

[0015] Optionally, along the width direction of the circuit board, a second solder mask layer is provided on each side of the radiating unit, and the minimum distance d2 from the edge of the radiating unit to the edge of the second solder mask layer is ≥0.5mm.

[0016] Optionally, both the first radiating antenna element and the second radiating antenna element are metal patches.

[0017] According to a second aspect of this application, a UWB antenna module is provided. The UWB antenna module includes a UWB antenna module as described in the first aspect and a housing, wherein the UWB antenna module is disposed within the housing.

[0018] According to a third aspect of this application, a washing device is provided. The washing device includes a UWB antenna module as described in the first aspect, or the washing device includes a UWB antenna module as described in the second aspect.

[0019] One technical advantage of this application is: The technical solution provided in this application constructs a performance optimization path that differs from existing technologies through a collaborative design of "multi-layer circuit board + partitioned radiating unit + grounding post"—it does not rely on strong disturbance methods such as dense slotting or loading parasitic units to expand bandwidth, but instead achieves performance breakthroughs through a three-dimensional radiation path and precise current control. This design effectively achieves antenna module miniaturization and precise adaptation to the confined installation space inside washing equipment, while successfully resolving the inherent contradiction between wideband requirements and low radiation efficiency in existing technologies. It balances the size adaptability of equipment installation with the performance reliability of antenna operation, achieving a synergistic unity of miniaturization, wideband, and high performance.

[0020] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0022] Figure 1 The diagram shown is a schematic diagram of the radiating layer in the UWB antenna module provided in this embodiment.

[0023] Explanation of reference numerals in the attached figures: 1. Circuit board; 10. Radiation layer; 2. Radiating element; 201. First radiating antenna element; 202. Second radiating antenna element; 21. Transmitting unit; 211. First transmitting antenna unit; 212. Second transmitting antenna unit; 22. Receiving unit; 221. First receiving antenna unit; 222. Second receiving antenna unit; 3. Power supply port; 4. Grounding post; 51. First solder resist layer; 52. Second solder resist layer. Detailed Implementation

[0024] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0026] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0027] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0029] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0030] In related technologies, the radiating elements of UWB antenna modules often adopt an integral metal patch structure. Based on the fundamental principles of antenna physics, there is an inherent constraint between the antenna's electrical size (usually defined as the ratio of physical size to operating wavelength) and its operating bandwidth, which can be characterized by the Chu-Harrington limit. To meet the installation requirements of confined spaces such as washing equipment, existing UWB antenna miniaturization technologies often achieve this by drastically compressing the physical size of the metal patch. However, this leads to significant performance degradation: since the antenna's electrical size is inversely proportional to its relative bandwidth, drastically compressing the physical size results in a sharp increase in the coupling between the various resonant modes within the antenna, causing a significant deterioration in the impedance characteristic curve (S0). 11 The parameters exhibit severe jitter within the target operating frequency band, resulting in extremely poor stability of the operating bandwidth that meets the -10dB impedance matching condition, making it impossible to guarantee the continuity and reliability of UWB signal transmission.

[0031] Furthermore, to expand the operating bandwidth and cover the wide frequency range required by UWB technology while miniaturizing the antenna, existing solutions often require strong perturbation methods to change the current distribution on the antenna surface. Typical methods include densely slotting metal patches and loading a large number of parasitic elements. However, such strong perturbation operations inevitably reduce the effective radiating aperture of the antenna (also known as the effective radiating area, which is a physical quantity that measures how efficiently the antenna converts input radio frequency energy into spatial electromagnetic wave radiation), thus causing two major technical problems: First, the radiation pattern is distorted and unstable. Within the target frequency band, as the operating frequency changes, the main radiation direction of the antenna will shift significantly (for example, shifting from the preset end-fire direction to conical radiation), while the sidelobe level increases sharply, disrupting the consistency of the beam shape. This problem severely restricts core UWB applications that rely on stable beam shapes, such as radar angle measurement and high-precision positioning, leading to increased angle measurement errors, decreased positioning accuracy, and even failure to meet the performance requirements of practical application scenarios.

[0032] Secondly, radiation efficiency drops sharply. The structural design of dense slots and multiple parasitic units significantly increases the ohmic loss and dielectric loss of the conductor; at the same time, the strong near-field coupling effect between the various metal structures will cause a large amount of electromagnetic energy to be trapped in the near-field region of the antenna, or converted into surface waves that propagate along the surface of the dielectric, and cannot be effectively radiated into free space. Ultimately, this leads to a significant reduction in antenna radiation efficiency, affecting the transmission distance and receiving sensitivity of UWB signals.

[0033] The root cause of the aforementioned technical problems lies in the inherent limitations of existing UWB antenna designs: on the one hand, existing solutions are mostly limited to two-dimensional planes, adjusting antenna performance by "cutting metal patches" (grooving) or "adding metal structures" (parasitic elements), which is essentially a local strong coupling optimization mode, making it difficult to achieve independent control and global coordinated optimization of impedance and radiation characteristics; on the other hand, traditional design ideas focus on optimizing performance by controlling current distribution, but at the deep subwavelength scale (where the antenna size is much smaller than the operating wavelength), relying solely on current control cannot efficiently guide and concentrate electromagnetic energy and radiate it into space. Most of the electromagnetic energy is easily confined by the antenna's own structure, making it difficult to form an effective radiation field, resulting in an irreconcilable contradiction between miniaturization, broadband, and high performance.

[0034] Based on this, this application provides a novel UWB antenna module, which aims to overcome the inherent limitations of existing design schemes. On the one hand, it achieves miniaturization of the UWB antenna module to adapt to the installation requirements of washing equipment; on the other hand, while ensuring antenna miniaturization, it achieves synergistic optimization of wideband coverage, high radiation efficiency and stable radiation characteristics, fundamentally solving the technical defects of existing UWB antenna modules caused by size compression and bandwidth expansion, such as impedance instability, pattern distortion and sharp drop in radiation efficiency.

[0035] Reference Figure 1 The UWB antenna module includes: a circuit board 1, which has a radiating layer 10, a ground layer and a feed layer stacked sequentially along its thickness direction; Radiation unit 2, which is disposed on the radiation layer 10, includes a first radiating antenna unit 201 and a second radiating antenna unit 202 disposed at intervals. The first radiating antenna unit 201 or the second radiating antenna unit 202 is provided with a feed hole 3, which is electrically connected to the feed layer. Grounding posts 4 are provided on both the first radiating antenna unit 201 and the second radiating antenna unit 202. The grounding posts 4 penetrate the radiating layer 10. One end of each grounding post 4 is electrically connected to the corresponding radiating antenna unit, and the other end is electrically connected to the grounding layer. All grounding posts 4 of the two radiating antenna units are electrically connected to each other in the grounding layer.

[0036] Reference Figure 1 The UWB antenna module provided in this application includes a circuit board 1, a radiating unit 2, and multiple grounding posts 4. The components work together to meet the miniaturization requirements of washing equipment for UWB antenna modules, while significantly reducing the floor space occupied by the device and ensuring the stability and efficiency of UWB signal transmission and reception. This effectively solves the contradiction of traditional onboard UWB antennas where "size and performance are difficult to balance".

[0037] In this embodiment, the circuit board 1 adopts a multi-layer PCB structure, with a radiating layer 10, a ground layer, and a feed layer stacked sequentially along its thickness direction. By layering different functional modules, it provides sufficient space for antenna miniaturization design and effectively reduces electromagnetic coupling interference between functional structures, thereby improving signal stability. Specifically, the radiating layer 10 can be set as the back of the PCB, the feed layer as the front of the PCB, and the ground layer sandwiched between the two, forming a stacked structure with clearly defined functional partitions.

[0038] In this embodiment, the radiating element 2 is disposed on the radiating layer 10. The radiating element 2 adopts a partitioned design, specifically including a first radiating antenna element 201 and a second radiating antenna element 202 arranged at intervals. Exemplarily, both radiating antenna elements can be metal patch structures, and the material can be metals with excellent conductivity such as copper and silver to ensure current conduction efficiency.

[0039] In the UWB antenna module, the transmitting unit 21 of the UWB antenna module can be configured as the radiating unit 2, or the receiving unit 22 of the UWB antenna module can be configured as the radiating unit 2, or both the transmitting unit 21 and the receiving unit 22 of the UWB antenna module can be configured as the radiating unit 2. That is, the radiating unit 2 can be flexibly configured as the transmitting unit 21 and the receiving unit 22 of the UWB antenna module, or simultaneously as both the transmitting unit 21 and the receiving unit 22.

[0040] When the transmitting unit 21 of the UWB antenna module is configured as a radiating unit 2, the transmitting unit 21 of the UWB antenna module includes a first transmitting antenna unit 211 and a second transmitting antenna unit 212 arranged at intervals.

[0041] When the receiving unit 22 of the UWB antenna module is configured as a radiating unit 2, the receiving unit 22 of the UWB antenna module includes a first receiving antenna unit 221 and a second receiving antenna unit 222 that are spaced apart.

[0042] To achieve signal feeding, in this embodiment of the application, a complete radiating unit 2 is divided into a first radiating antenna unit 201 and a second radiating antenna unit 202, and a feeding hole 3 is provided on the first radiating antenna unit 201 or the second radiating antenna unit 202. The feeding hole 3 penetrates through the radiating layer 10 to the feeding layer and is reliably electrically connected to the feeding network integrated with the feeding layer to form a feeding path.

[0043] Specifically, if the radiating element 2 is the transmitting element 21 of the UWB antenna module, the feed hole 3 of the first transmitting antenna element 211 or the second transmitting antenna element 212 of the transmitting element 21 is electrically connected to the transmitting branch of the feeding network. If the radiating element 2 is the receiving element 22 of the UWB antenna module, the feed hole 3 of the first receiving antenna element 221 or the second receiving antenna element 222 of the receiving element 22 is electrically connected to the receiving branch of the feeding network.

[0044] Corresponding to the partitioned design of the radiating element 2, multiple grounding posts 4 are distributed on both the first radiating antenna element 201 and the second radiating antenna element 202. These grounding posts 4 are conductive metal pillars that vertically penetrate the radiating layer 10. One end of each grounding post 4 is reliably electrically connected to the corresponding radiating antenna element, and the other end is securely electrically connected to the grounding layer. That is, in this embodiment, the two radiating antenna elements are electrically connected through a feed hole 3 and the grounding posts 4 respectively located on the two radiating antenna elements. More importantly, all the grounding posts 4 of the two radiating antenna elements are electrically interconnected within the grounding layer, forming a closed three-dimensional grounding network. This structure serves as both a current conductor and a performance optimization component, synergistically achieving a balance between miniaturization and high performance.

[0045] Specifically, traditional onboard UWB antennas suffer from problems such as excessive size and difficulty in achieving a balance between miniaturization and performance, which stem from two main issues: Firstly, in order to achieve ultra-wideband coverage and good impedance matching, the physical length of the radiating patch must be close to the resonant wavelength of the corresponding type of antenna (about 1 / 4 wavelength for monopole type and about 1 / 2 wavelength for dipole / microstrip patch type), and sufficient clearance area must be reserved to avoid impedance mismatch and radiation field distortion problems, which makes it difficult to reduce the overall size of the antenna. Secondly, the radiation path of traditional onboard antennas is limited to the plane of a single-layer substrate (1 / 4 wavelength monopoles are vertically propagated along the "patch-ground plane", and 1 / 2 wavelength dipoles are horizontally propagated along the patch). The physical size is directly linked to the electrical length, which further compresses the space for miniaturization design.

[0046] This application overcomes the aforementioned technical bottlenecks through innovative structural design: On one hand, the radiation path of the radiating unit 2 (which can serve as a transmitting unit 21, a receiving unit 22, or both) is divided into two parts. Through the synergistic effect of the grounding post 4, a three-dimensional radiation path is formed: "radiation by the first radiating antenna unit 201 + radiation by the second radiating antenna unit 202 + conduction by the grounding post 4". This partitioned layout of the radiating unit 2, combined with the layered layout of the current path, breaks the limitations of the traditional planar radiation path, allowing the radiation path to extend in the thickness direction (vertical direction) of the circuit board 1. This three-dimensional layout ensures the effective electrical length required by the antenna without increasing the planar area occupied by the circuit board 1, fundamentally solving the pain point of "insufficient electrical length requiring enlargement of planar size" in traditional planar antennas. It significantly reduces the horizontal planar space occupied by the antenna, providing core structural support for adapting to the small and compact installation environment inside washing equipment.

[0047] On the other hand, the grounding posts 4 disposed on the first radiating antenna element 201 and the second radiating antenna element 202 not only serve the functions of current conduction and grounding, but also constitute a parasitic loading structure. The parasitic coupling effect of the grounding posts 4 is used to optimize the antenna performance. Specifically, multiple grounding posts 4 are equivalent to adding multiple parasitic stubs on the radiation path. Through the parasitic coupling effect, the equivalent impedance and resonant characteristics of the antenna are changed, enabling the antenna to achieve stable resonance in the target frequency band with a shorter physical length.

[0048] Meanwhile, based on antenna miniaturization theory, this application achieves parasitic coupling effect through grounding posts 4. Parasitic loading technology can shorten the antenna resonant length by 20%-30%. In the embodiments of this application, the dense arrangement of grounding posts 4 forms a continuous parasitic loading band in a single row of grounding posts 4, further enhancing the parasitic coupling effect. Ultimately, the overall antenna size is reduced by more than 40% compared to traditional similar designs, while maintaining complete broadband coverage performance, thus balancing miniaturization requirements with signal transmission and reception performance.

[0049] The following uses radiating unit 2 as an example of emitting unit 21 to explain its working principle and advantages: In the embodiments of this application, reference is made to Figure 1 The transmitting unit 21 is divided into two sections (i.e., the first transmitting antenna unit 211 and the second transmitting antenna unit 212). The feed hole 3 is set in the lower section (the second transmitting antenna unit 212), so that the current is conducted in an orderly manner along the upper and lower sections after starting from the feed point. This avoids the problem of messy reflection and uneven distribution of current at the edge in traditional single patch antennas (whether it is 1 / 4 or 1 / 2 wavelength), reduces energy loss inside the antenna, and eliminates the need to expand the ground plane size for balancing impedance.

[0050] Simultaneously, a row of grounding posts 4 is set in the first transmitting antenna element 211, and a row of grounding posts 4 is also set in the second transmitting antenna element 212. These two rows of grounding posts 4 form a closed connection in the grounding layer, constructing a three-dimensional radiation path of "radiation from the first radiating antenna element 201 + radiation from the second radiating antenna element 202 + conduction from the grounding posts 4". The current conduction logic is as follows: the current starts from the feed point, first fills the second transmitting antenna element 212, and then flows to the first transmitting antenna element 211 through the parasitic coupling effect of the grounding posts 4, forming an ordered layered conduction path. This design allows the current to "bypass" through the grounding posts 4 in multiple layers of medium, which is equivalent to lengthening the current conduction path without increasing the physical size of the metal patch, meeting the resonance requirements of the UWB band, and solving the contradiction of "size reduction and bandwidth loss" in traditional miniaturized antennas. It not only improves energy utilization efficiency, but also achieves the optimal balance between size and performance through the synergy of the three-dimensional structure and parasitic effects.

[0051] Furthermore, the parasitic coupling effect generated during the layered connection process of grounding post 4 can precisely control the antenna impedance matching, thereby improving the reflection coefficient S. 11 The bandwidth coverage is more complete with a range of ≤-10dB, while ensuring that the radiation efficiency remains above 85%.

[0052] In summary, the embodiments of this application construct a performance optimization path that differs from existing technologies through the collaborative combination design of "multi-layer circuit board 1 + partitioned radiating unit 2 + grounding post 4"—it does not rely on strong disturbance methods such as dense slotting and loading parasitic units to expand bandwidth, but instead achieves performance breakthroughs through a three-dimensional radiation path and precise current control. This design effectively achieves antenna module miniaturization and precise adaptation to the confined installation space inside the washing equipment, while successfully resolving the inherent contradiction between wideband requirements and low radiation efficiency in existing technologies. It balances the size adaptability of equipment installation with the performance reliability of antenna operation, achieving a synergistic unity of miniaturization, wideband, and high performance.

[0053] According to the embodiments of this application, refer to Figure 1The circuit board 1 is defined with a length direction and a width direction, and the first radiating antenna unit 201 and the second radiating antenna unit 202 are spaced apart along the width direction of the circuit board 1.

[0054] Specifically, circuit board 1 is defined with mutually perpendicular length directions ( Figure 1 (in the horizontal extension direction) and the width direction ( Figure 1 The horizontal extension direction perpendicular to the length direction provides a clear orientation reference for the layout of the radiation unit 2.

[0055] In this embodiment, the radiating units 2 are spaced apart along the width direction of the circuit board 1. That is, the first radiating antenna unit 201 and the second radiating antenna unit 202 form a preset distance in the width direction of the circuit board 1. This layout can reasonably plan the space occupied by the radiating units 2 without increasing the length of the circuit board 1, further optimize the antenna miniaturization effect, and at the same time provide a stable azimuth basis for the coupling control between the two radiating units 2.

[0056] In this embodiment, both the transmitting unit 21 and the receiving unit 22 of the UWB antenna module can be configured as the radiating unit 2 structure described in this application, achieving structural uniformity and performance coordination between the transmitting and receiving units. The transmitting unit 21 includes a first transmitting antenna unit 211 and a second transmitting antenna unit 212, which respectively adopt the structural design of the first radiating antenna unit 201 and the second radiating antenna unit 202 described above, and are spaced apart along the width direction of the circuit board 1 to maintain consistency with the overall layout of the radiating unit 2. Correspondingly, the receiving unit 22 includes a first receiving antenna unit 221 and a second receiving antenna unit 222, which also adopt the structural form of the radiating unit 2 of this application, and are spaced apart along the width direction of the circuit board 1.

[0057] Through the structural configuration and orientation layout of the above-mentioned transceiver units, performance optimization can be achieved from three dimensions: structural design, spatial adaptation, and field control.

[0058] Firstly, the transceiver unit adopts a unified radiating element 2 structure design, which greatly simplifies the overall design difficulty and manufacturing process complexity of the antenna module, and reduces manufacturing costs and quality control difficulties. Secondly, the symmetrical and consistent structure provides a physical basis for matching transceiver performance, which can effectively avoid problems such as impedance mismatch and phase shift caused by differences in the transceiver unit structure, thereby reducing signal distortion between transceiver links and ensuring the consistency of signal transmission.

[0059] Secondly, the radiating antenna units of the transceiver unit are all spaced apart along the width of the circuit board 1. The logic of this layout is to use the space in the width of the circuit board 1 to arrange the radiating units 2, avoiding the need to extend along the length direction and occupy additional space. This can significantly shorten the overall size of the antenna module in the length direction, accurately adapt to the small and compact installation space requirements inside the washing equipment, further enhance the miniaturization advantage, and at the same time reserve sufficient space for the layout of other components inside the equipment.

[0060] Thirdly, the principle of optimizing the radiation field by the spacing layout in the width direction is that a reasonable spacing distance can ensure efficient radiation and accurate acquisition of signals, and can also form a natural field isolation through spatial separation, suppress electromagnetic interference between transceiver units, reduce the interference of stray signals on effective signals, thereby improving the anti-interference capability of the antenna module and ensuring stable operation in the complex electromagnetic environment of the washing equipment.

[0061] According to the embodiments of this application, the first radiating antenna unit 201 on the side away from the second radiating antenna unit 202, and the second radiating antenna unit 202 on the side away from the first radiating antenna unit 201, are each provided with a plurality of grounding posts 4 arranged at intervals.

[0062] In this embodiment, corresponding to the transceiver unit of the UWB antenna module, since both the transmitting unit 21 and the receiving unit 22 can be configured as the radiating unit 2 structure of this application, the structural unity and performance coordination of the transceiver unit are realized, and the layout of its grounding post 4 also maintains the same standard.

[0063] Specifically, the transmitting unit 21 includes a first transmitting antenna unit 211 and a second transmitting antenna unit 212, which correspond to the structures of the first radiating antenna unit 201 and the second radiating antenna unit 202, respectively. The first transmitting antenna unit 211 has a row of grounding posts 4 (grounding posts 4 array arrangement) arranged along the length of the circuit board 1 on the side opposite to the second transmitting antenna unit 212. The second transmitting antenna unit 212 also has a row of grounding posts 4 (grounding posts 4 array arrangement) arranged along the length of the circuit board 1 on the side opposite to the first transmitting antenna unit 211.

[0064] The receiving unit 22 includes a first receiving antenna unit 221 and a second receiving antenna unit 222. The layout of its grounding posts 4 is identical to that of the transmitting unit 21. Specifically, the side of the first receiving antenna unit 221 facing away from the second receiving antenna unit 222, and the side of the second receiving antenna unit 222 facing away from the first receiving antenna unit 221, each have a row of grounding posts 4 along the length of the circuit board 1. Preferably, the number of grounding posts 4 in each row can be adapted to the length of the corresponding radiating antenna unit, and the spacing between adjacent grounding posts 4 is uniform to ensure consistent control of the current distribution.

[0065] The layout design of the above-mentioned grounding post 4 can achieve multiple technical effects: Firstly, the orderly arranged array of grounding posts 4 can form a "current boundary constraint", guiding the current to flow along a preset path and reducing impedance fluctuations caused by current turbulence. This is particularly important for miniaturized broadband antennas, as it can overcome the impedance constraints brought about by the Chu-Harrington limit.

[0066] Based on this principle, in this embodiment, the grounding post 4 is only located on the opposite sides of the two radiating antenna elements, providing a clear grounding path for the current on the surface of each radiating antenna element. This effectively suppresses the disordered diffusion of current to the antenna edge, avoids impedance abrupt changes caused by current concentration, and ensures that S... 11 The parameters remain stable within the target frequency band, further optimizing the -10dB impedance matching effect.

[0067] Secondly, the grounding post 4, through its common-ground structure, rapidly guides interfering electromagnetic waves into the grounding layer, reducing the coupling and superposition of interference energy on the surface of the radiating unit 2. Simultaneously, it stabilizes the radiation field morphology of each radiating antenna unit, ensuring accurate main radiation direction and reducing sidelobe levels. This is crucial for the stable operation of the washing equipment in the complex electromagnetic environment. Therefore, in this embodiment, the grounding posts 4 on opposite sides of each radiating antenna unit of the transceiver unit form an "electromagnetic isolation barrier." On the one hand, this blocks external stray electromagnetic waves from interfering with the internal radiation field of the antenna; on the other hand, it suppresses cross-coupling between transceiver units and between two radiating antennas within the same unit, preventing pattern distortion.

[0068] Third, the grounding post 4 only constrains the disordered current at the edge and does not affect the effective current coupling at the coupling gap, ensuring wideband coverage capability; at the same time, the orderly grounding path can prevent energy from being trapped as surface waves, improve the conversion efficiency of electromagnetic energy to space radiation, and achieve the synergy of miniaturization, wideband and high radiation efficiency.

[0069] Therefore, in this embodiment, the grounding post 4 on the opposite side of the two radiating antenna elements will not destroy the resonance extension effect formed by the coupling gap between the two, and can reduce energy loss through current regulation, balance coupling characteristics and radiation efficiency, and synergistically optimize broadband performance.

[0070] In one specific embodiment, refer to Figure 1 The power supply hole 3 of the radiating unit 2 is disposed on the second radiating antenna unit 202; and, along the width direction of the circuit board 1, the power supply hole 3 is spaced apart from the grounding post 4 disposed on the second radiating antenna unit 202.

[0071] In this embodiment, the feed hole 3 of the radiating unit 2 is specifically disposed on the second radiating antenna unit 202, and along the width direction of the circuit board 1, the feed hole 3 and the grounding post 4 disposed on the second radiating antenna unit 202 are distributed at a preset interval, forming a cooperative layout structure for feeding and grounding. Preferably, the spacing between the feed hole 3 and the adjacent grounding post 4 can be adapted and adjusted according to the impedance matching requirements to ensure that the current constraint effect of the grounding post 4 is not interfered with, while achieving efficient transmission of the feed signal.

[0072] Of course, based on the setup of the feed network in the feed layer, the feed hole 3 can also be set in the first radiating antenna unit 201, and spaced apart from the multiple grounding posts 4 set in the first radiating antenna unit 201 in the width direction of the circuit board 1.

[0073] This embodiment addresses the issue of the large size of traditional on-board antennas through the coordinated arrangement of the feed hole 3 and the grounding post 4. In traditional on-board antennas, a large clearance area is reserved to avoid electromagnetic interference. The clearance area of ​​a quarter-wavelength monopole antenna typically accounts for 30%-40%, and that of a half-wavelength dipole antenna accounts for 25%-35%. This clearance requirement is one of the important reasons for the large size of traditional antennas.

[0074] Therefore, this embodiment optimizes the power supply and grounding layout by placing the power supply hole 3 in the upper half of the second radiating antenna unit 202, while a grounding post 4 array is placed in the lower half of the second radiating antenna unit 202. The layout of the power supply hole 3 and the layout of the grounding post 4 work together to achieve a dual optimization goal—significantly reducing the clearance area and compressing the overall volume of the UWB antenna module, while also optimizing the antenna operating characteristics, thus fundamentally avoiding the performance risks caused by the expansion of the physical size of the metal patch.

[0075] Specifically, in this embodiment, the feed hole 3 is located in the upper half of the second radiating antenna unit 202 and is relatively close to the grounding post 4 array in the lower half. On the one hand, this allows the feed current to be quickly conducted to the radiation areas of the first radiating antenna unit 201 and the second radiating antenna unit 202 through the grounding post 4, forming an efficient and orderly current transmission path. On the other hand, the grounding post 4 array can form electromagnetic shielding between the feed area and the grounding layer, effectively suppressing mutual interference between the two, ensuring feed stability and signal transmission quality without reserving a large area of ​​clearance. Actual optimization and verification show that the clearance area ratio of this design can be reduced to below 15%, a reduction of more than 40% compared to traditional designs. The overall antenna volume is significantly compressed, allowing for precise adaptation to the small and compact installation space inside washing equipment.

[0076] Meanwhile, the grounding post array 4 in this embodiment can adapt to different types of antenna structures, further optimizing the synergy between miniaturization and performance: For a 1 / 4 wavelength monopole antenna, the grounding post array 4 forms a stable grounding network, effectively avoiding signal reflection problems caused by poor grounding in traditional designs, eliminating the need to compensate for performance by increasing antenna size; for a 1 / 2 wavelength dipole antenna, the grounding post array 4 forms a symmetrical support network, ensuring the symmetrical consistency of the antenna structure and current distribution, solving the pain point of performance degradation due to symmetry imbalance in traditional designs, which requires increasing size to optimize symmetry. Both adaptation scenarios can further compress the overall size without sacrificing core performance such as antenna bandwidth and radiation efficiency, achieving a balance between miniaturization and high performance of the UWB antenna module.

[0077] In a further embodiment, refer to Figure 1 Along the length of the circuit board 1, the feed hole 3 is located in the middle region of the second radiating antenna unit 202.

[0078] In this embodiment, the position of the feed hole 3 is more precisely defined: along the length of the circuit board 1, the feed hole 3 is located in the middle region of the second radiating antenna unit 202. Combined with the layout described above, "alternating along the width direction, the feed hole 3 and the grounding post 4 of the second radiating antenna unit 202 are distributed at intervals along the width direction of the circuit board 1", it can be ensured that the feed hole 3 is in a balanced current distribution area, while maintaining a reasonable distance from the grounding post 4 array located in the lower half of the second radiating antenna unit 202, thus taking into account both feeding efficiency and grounding control effect.

[0079] Specifically, the central region along the length direction is a relatively balanced area for the current distribution of the second radiating antenna element 202. Placing the feed hole 3 here allows the feed current to be uniformly conducted to both ends of the radiating element 2 and the first radiating antenna element 201, avoiding excessive current concentration or sparseness in local areas, effectively reducing the risk of impedance abrupt changes, and enabling S... 11 The parameters maintain a more stable characteristic across the entire UWB target frequency band, further improving the bandwidth coverage capability of -10dB impedance matching. Compared to the 3-hole bias setting, the center feed can reduce current distribution distortion, overcome the impedance constraints caused by current turbulence in miniaturized antennas, and meet the performance optimization requirements under the Chu-Harrington limit.

[0080] Meanwhile, the feed hole 3 is located in the middle region along the length of the second radiating antenna element 202, which allows the radiation field of the second radiating antenna element 202 to be symmetrically distributed along its length. Combined with the symmetrical control effect of the grounding post array 4, this ensures the consistency of the radiation field shape of the transceiver unit. This is crucial for UWB high-precision positioning applications that rely on signal symmetry, effectively reducing angle measurement errors and distance calculation deviations caused by field shape asymmetry, while ensuring the radiation purity of the transmitted signal and the acquisition accuracy of the received signal, thus adapting to the precise positioning requirements in scenarios such as washing equipment.

[0081] Furthermore, the feed hole 3 in the middle region of the second radiating antenna element 202 and the grounding post 4 array in the lower half form an optimal spatial relationship. This ensures that the feed current is quickly conducted through the grounding post 4 to form an efficient transmission path, and also enables precise shielding of the feed area with the help of the grounding post 4 array. Performance optimization and balanced feed and grounding efficiency can be achieved without additional expansion of the clearance area or adjustment of the size of the radiating element 2.

[0082] According to the embodiments of this application, refer to Figure 1 The first radiating antenna unit 201 and the second radiating antenna unit 202 are symmetrically arranged about a first reference, which extends along the length direction of the circuit board 1.

[0083] In this embodiment, the first radiating antenna element 201 and the second radiating antenna element 202 are equally divided in the width direction. This symmetrical layout is maintained throughout the transceiver unit to ensure overall performance coordination.

[0084] Taking the transmitting unit 21 as an example, its first transmitting antenna unit 211 and second transmitting antenna unit 212 are symmetrically arranged about the first reference. The symmetry covers the shape, size, grounding post 4 distribution, and impedance characteristic parameters of the antenna module, ensuring the performance consistency of the two transmitting antenna units. Taking the receiving unit 22 as an example, its first receiving antenna unit 221 and second receiving antenna unit 222 are also symmetrically arranged about the first reference, and their symmetrical layout parameters are consistent with those of the transmitting unit 21, achieving symmetrical matching of the transmit and receive links. Preferably, the first reference can coincide with the center line of the circuit board 1 along its length, further optimizing space utilization and layout regularity, and facilitating adaptation to the installation space inside the washing equipment.

[0085] In this implementation, the symmetrical layout design described above optimizes the symmetry of the current distribution, improves broadband impedance stability, avoids current distribution imbalance caused by layout bias, and reduces impedance abrupt changes caused by local current concentration or sparsity. Combined with the symmetrical layout of grounding post 4, the symmetry of the current path is further enhanced, making S... 11The parameters remain stable throughout the entire UWB target frequency band, effectively mitigating the impedance fluctuation problem caused by current disturbance in miniaturized antennas, and meeting the broadband performance optimization requirements under the Chu-Harrington limit.

[0086] Furthermore, the aforementioned symmetrical layout allows the radiation fields of the first radiating antenna element 201 and the second radiating antenna element 202 to be symmetrically superimposed in space. Combined with the array of grounding posts 4 on opposite sides, a symmetrical electromagnetic isolation barrier can be constructed, reducing cross-coupling between the two elements and simultaneously reducing asymmetric interference from external stray electromagnetic waves to the transceiver link. Compared to an asymmetric layout, the symmetrical structure allows interference energy to be uniformly canceled on the two radiating antenna elements, avoiding performance degradation caused by interference accumulation.

[0087] According to the embodiments of this application, refer to Figure 1 The transmitting unit 21 includes a first transmitting antenna unit 211 and a second transmitting antenna unit 212 arranged at intervals; the receiving unit 22 includes a first receiving antenna unit 221 and a second receiving antenna unit 222 arranged at intervals. The first transmitting antenna unit 211 and the first receiving antenna unit 221 are symmetrically arranged about a second reference, and the second transmitting antenna unit 212 and the second receiving antenna unit 222 are symmetrically arranged about the second reference, which extends along the width direction of the circuit board 1.

[0088] This embodiment imposes dual constraints on the layout symmetry of the radiating unit 2, achieving both intra-unit symmetry for the transmitting unit 21 and the receiving unit 22, and cross-unit symmetry between the transmitting and receiving units, thereby maximizing both performance optimization and miniaturization goals.

[0089] Specifically, in this embodiment, on the one hand, the first radiating antenna unit 201 and the second radiating antenna unit 202 are symmetrically arranged about a first reference, which extends along the length direction of the circuit board 1, that is, the first reference is a straight line parallel to the length direction of the circuit board 1, so that the first radiating antenna unit 201 and the second radiating antenna unit 202 are symmetrically arranged in the width direction of the circuit board 1, laying the foundation for balanced current distribution within the unit; on the other hand, the transmitting unit 21 and the receiving unit 22 are symmetrically arranged about the second reference, constructing a full-link symmetrical system to ensure the consistency of the transmission and reception link performance.

[0090] The aforementioned dual symmetrical layout works in concert, and both the transmitting unit 21 and the receiving unit 22 adopt the "radiating antenna unit partitioned layout + grounding post 4 connection" structure described above—that is, a feed hole 3 is set in the upper half (or designated area) of one of the radiating antenna units, and an array of grounding posts 4 is arranged on the opposite sides of each radiating antenna unit, ensuring the uniformity of the entire link structure and the coordination of performance. Preferably, the first reference can coincide with the center line in the length direction of the circuit board 1, and the second reference can coincide with the center line in the width direction of the circuit board 1, forming a "cross-reference" layout, further improving space utilization and layout regularity, and accurately adapting to the small and compact installation space inside the washing equipment.

[0091] This embodiment achieves breakthrough optimization by combining the above-mentioned dual symmetrical layout and structural design, and by taking advantage of the "magnetic wall effect" in antenna design.

[0092] Specifically, the dual-symmetric structure between and within the transceiver units allows the overall radiation field distribution of the antenna to exhibit mirror characteristics, effectively forming virtual magnetic walls at the second reference (transceiver symmetry plane) and the first reference (symmetry plane within radiation unit 2). According to antenna theory, the virtual magnetic wall can constrain the radiation range of electromagnetic energy, preventing energy from diffusing outward from the symmetry plane. Without reducing radiation performance (bandwidth, gain, isolation, etc.), the physical space required for the antenna is compressed to half that of traditional asymmetric structures—this reduction effect can be achieved whether compared to a 1 / 4-wavelength monopole antenna or a 1 / 2-wavelength dipole antenna. Optimization and verification have shown that the antenna volume of this design is reduced by more than 50% compared to similar traditional large-volume on-board antennas, significantly improving its adaptability to the compact space inside washing equipment. In other words, this embodiment achieves extreme miniaturization through the magnetic wall effect, reducing volume by more than 50%.

[0093] Furthermore, the transceiver unit in this embodiment is symmetrical about the second reference. Combined with the symmetrical design within the unit about the first reference, this ensures perfect matching of the electromagnetic parameters (impedance, phase, gain) of the transmit and receive links, reducing phase deviation and gain fluctuations in the transmitted and received signals. Simultaneously, the constraint effect formed by the virtual magnetic wall suppresses asymmetric interference from external stray electromagnetic waves. Combined with the isolation effect of the grounding post array 4, this further enhances the isolation and anti-interference capability between the transceiver units. This is crucial for high-precision UWB positioning, effectively reducing angle measurement errors and distance calculation deviations, ensuring stable and accurate position signal output in the complex electromagnetic environment of washing equipment.

[0094] Simultaneously, this embodiment integrates three elements: "dual symmetrical layout," "radiating unit 2 partition setting," and "parasitic loading technology for grounding post 4." The symmetrical layout provides the foundation for the magnetic wall effect; the radiating unit 2 partition setting further compresses the horizontal dimensions; and the parasitic loading of grounding post 4 optimizes impedance and radiation characteristics under miniaturization. In this embodiment, the three elements are not simply superimposed but mutually reinforcing—the symmetrical layout enhances the current regulation effect of grounding post 4, and the radiating unit 2 partition setting improves the stability of the symmetrical field. Ultimately, core performance indicators such as bandwidth, gain, and isolation are not inferior to traditional designs, breaking the inherent constraint that "miniaturization inevitably reduces performance." This aligns with the performance optimization requirements under the Chu-Harrington limit, forming a miniaturization synergy of "1+1+1>3," taking into account multi-dimensional performance.

[0095] Based on the structural layout of the UWB antenna module defined above, in this embodiment of the application, along the length direction of the circuit board 1, a first solder mask layer 51 is provided on each side of the radiating unit 2, and the minimum distance d1 from the edge of the radiating unit 2 to the edge of the first solder mask layer 51 is ≥3mm. Meanwhile, along the width direction of the circuit board 1, a second solder mask layer 52 is provided on each side of the radiating unit 2, and the minimum distance d2 from the edge of the radiating unit 2 to the edge of the second solder mask layer 52 is ≥0.5mm.

[0096] In this embodiment, in order to further ensure the electromagnetic performance stability of the radiation unit 2 and avoid interference from the external environment and other structures of the circuit board 1 on the radiation field, the layout and size of the solder mask layer are limited.

[0097] Specifically, along the length of the circuit board 1, a first solder mask layer 51 is provided on both sides of the radiating unit 2; along the width of the circuit board 1, a second solder mask layer 52 is provided on both sides of the radiating unit 2, forming a full-circumferential solder mask protection structure for the radiating unit 2. (Refer to...) Figure 1 A portion of the first solder mask 51 located between the transmitting unit 21 and the receiving unit 22 overlaps with the second solder mask 52. The minimum distance d1 from the edge of the radiating unit 2 to the edge of the first solder mask 51 is ≥3mm, and the minimum distance d2 from the edge of the radiating unit 2 to the edge of the second solder mask 52 is ≥0.5mm. Both the first solder mask 51 and the second solder mask 52 correspond to the green solder mask area in the radiating layer 10 of the circuit board.

[0098] In this embodiment, the first solder mask layer 51 (both sides in the length direction) adopts a minimum spacing design of d1≥3mm, which can effectively isolate stray electromagnetic waves in the length direction of the circuit board 1 and prevent them from intruding into the radiation area of ​​the radiation unit 2, interfering with the current distribution and radiation field morphology; the second solder mask layer 52 (both sides in the width direction) adopts a minimum spacing of d2≥0.5mm, which can block external interference in the width direction while taking into account the compactness of the edge structure of the radiation unit 2 and the circuit board 1, forming an all-round electromagnetic protection barrier, ensuring that the UWB antenna module maintains stable bandwidth, gain and impedance characteristics in the complex electromagnetic environment of the washing equipment.

[0099] This application also provides a UWB antenna module. The UWB antenna module includes a UWB antenna module as described in the first aspect and a housing, wherein the UWB antenna module is disposed within the housing.

[0100] In this embodiment, the UWB antenna module is encapsulated in a plastic housing and installed in a preset position on the washing equipment. During use, the UWB antenna module can be connected to an external UWB RF transceiver chip via a coaxial connector.

[0101] This application also provides a washing device. The washing device includes the UWB antenna module as described in the first aspect, or the washing device includes the UWB antenna module as described in the second aspect.

[0102] In this embodiment, the UWB antenna module / group enables high-precision non-contact detection of the state of clothes inside the washing chamber. Exemplarily, the washing equipment includes, but is not limited to, drum washing machines, washer-dryer combos, and other similar devices.

[0103] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0104] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A UWB antenna module, characterized in that, The UWB antenna module includes: The circuit board (1) is provided with a radiation layer (10), a ground layer and a power supply layer stacked sequentially along its own thickness direction; Radiation unit (2), the radiation unit (2) is disposed on the radiation layer (10), including a first radiation antenna unit (201) and a second radiation antenna unit (202) disposed at intervals, the second radiation antenna unit (202) is provided with a feed hole (3), the feed hole (3) penetrates the radiation layer (10) to the feed layer and is electrically connected to the feed network in the feed layer; Grounding posts (4) are provided on both the first radiating antenna unit (201) and the second radiating antenna unit (202), and the grounding posts (4) penetrate the radiating layer (10); a row of grounding posts (4) is provided on the side of the first radiating antenna unit (201) away from the second radiating antenna unit (202) and spaced apart along the length of the circuit board; a row of grounding posts (4) is provided on the side of the second radiating antenna unit (202) away from the first radiating antenna unit (201) and spaced apart along the length of the circuit board. Along the width direction of the circuit board (1), the feed hole (3) is spaced apart from the grounding post (4) provided on the second radiating antenna unit (202); One end of each grounding post (4) is electrically connected to the corresponding radiating antenna unit, and the other end is electrically connected to the grounding layer. All grounding posts (4) of the two radiating antenna units are electrically connected to each other in the grounding layer so that the current flows from the feed hole (3) to the second radiating antenna unit (202) first, and then flows to the first radiating antenna unit (201) through the parasitic coupling effect of the grounding post (4). The interconnection of the multiple grounding posts (4) in the grounding layer forms a closed three-dimensional grounding network, generating a parasitic loading effect to adjust the equivalent impedance of the antenna and establish a three-dimensional radiation path.

2. The UWB antenna module according to claim 1, characterized in that, The transmitting unit (21) and / or receiving unit (22) of the UWB antenna module are configured as the radiating unit (2).

3. The UWB antenna module according to claim 1, characterized in that, The circuit board (1) is defined with a length direction and a width direction, and the first radiating antenna unit (201) and the second radiating antenna unit (202) are spaced apart along the width direction of the circuit board (1).

4. The UWB antenna module according to claim 1, characterized in that, Along the length of the circuit board (1), the feed hole (3) is located in the middle region of the second radiating antenna unit (202).

5. The UWB antenna module according to claim 1, characterized in that, The first radiating antenna unit (201) and the second radiating antenna unit (202) are symmetrically arranged about a first reference, which extends along the length direction of the circuit board (1).

6. The UWB antenna module according to claim 2, characterized in that, The transmitting unit (21) includes a first transmitting antenna unit (211) and a second transmitting antenna unit (212) arranged at intervals. The receiving unit (22) includes a first receiving antenna unit (221) and a second receiving antenna unit (222) arranged at intervals. The first transmitting antenna unit (211) and the first receiving antenna unit (221) are symmetrically arranged about a second reference, and the second transmitting antenna unit (212) and the second receiving antenna unit (222) are symmetrically arranged about the second reference, which extends along the width direction of the circuit board (1).

7. The UWB antenna module according to claim 1, characterized in that, Along the length of the circuit board (1), a first solder mask layer (51) is provided on each side of the radiating unit (2), and the minimum distance d1 from the edge of the radiating unit (2) to the edge of the first solder mask layer (51) is ≥3mm.

8. The UWB antenna module according to claim 1 or 7, characterized in that, Along the width direction of the circuit board (1), a second solder mask layer (52) is provided on each side of the radiating unit (2), and the minimum distance d2 from the edge of the radiating unit (2) to the edge of the second solder mask layer (52) is ≥0.5mm.

9. The UWB antenna module according to claim 1, characterized in that, Both the first radiating antenna element (201) and the second radiating antenna element (202) are metal patches.

10. A UWB antenna module, characterized in that, It includes the UWB antenna module and housing as described in any one of claims 1-9, wherein the UWB antenna module is disposed within the housing.

11. A washing device, characterized in that, The washing device includes a UWB antenna module as described in any one of claims 1-10, or the washing device includes a UWB antenna module as described in claim 10.

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