Lamp and directional microwave detection antenna thereof

Abstract

The utility model provides a lamp and a directional microwave detection antenna thereof, the lamp comprises a lamp panel and the directional microwave detection antenna, the lamp panel is provided with a light-emitting surface and a back surface, the lamp panel is provided with an antenna port, the directional microwave detection antenna comprises a substrate, a reference ground and a strip-shaped oscillator, and the strip-shaped oscillator is arranged on the substrate. Wherein the reference ground is supported on one surface of the substrate, and the strip-shaped oscillator extends in a direction far away from the reference ground at one side of the substrate, which is supported with the reference ground, so as to form a feed section, and is bent so as to further extend so as to form a bent extension section; the directional microwave detection antenna is arranged in the state that the folded extension section penetrates through the antenna opening from the back face of the lamp panel, so that the lamp panel and the reference ground are matched to form the integrated reference ground. Therefore, the reference ground area of the directional microwave detection antenna is expanded.

Description

Technical Field

[0001] The utility model relates to the field of microwave detection, in particular to a lamp and a directional microwave detection antenna thereof. Background Art

[0002] Microwave detection technology works based on the principle of microwave Doppler effect. It can detect activities in a target space to determine whether there is a human body entering and existing in the target space, thereby detecting moving objects without infringing on people's privacy. Therefore, it can serve as an important hub connecting people and objects, and objects and objects, and can be used in behavior detection and existence detection, and has broad application prospects. Specifically, the corresponding microwave detector is fed by an excitation signal and emits a microwave beam with a frequency corresponding to the excitation signal to the target space, thereby forming a detection area in the target space, and receives a reflected echo formed by the microwave beam being reflected by the corresponding object in the detection area and transmits an echo signal corresponding to the frequency of the reflected echo to a mixing and detection unit, wherein the mixing and detection unit mixes the excitation signal and the echo signal and outputs a Doppler intermediate frequency signal corresponding to the frequency / phase difference between the excitation signal and the echo signal. Based on the principle of the Doppler effect, when the object that reflects the microwave beam is in motion, there is a certain frequency / phase difference between the echo signal and the excitation signal, and the Doppler intermediate frequency signal presents corresponding amplitude fluctuations to feedback human body activities.

[0003] Existing microwave detectors are primarily categorized by the structure of their radiation sources: those with cylindrical radiation sources and those with flat-plate radiation sources. Structurally, because the cylindrical radiation source of a cylindrical microwave detector is perpendicular to its reference ground, it tends to occupy more space during installation than a flat-plate microwave detector. When used in a lamp, the radiation source significantly protrudes from the lamp panel, preventing the lampshade from properly fitting in front of the panel and requiring a specially designed protruding area to accommodate the radiation source, impacting the lamp's aesthetics. Furthermore, cylindrical microwave detectors lack directional radiation capability, making it difficult to align with the target detection area and resulting in poor detection accuracy.

[0004] Therefore, in today's aesthetic trend toward a compact and concise appearance, microwave detectors with flat-panel radiation source structures are highly favored due to their small footprint and relative stability. The planar dimensions of a microwave detector with a flat-panel radiation source structure in the direction of its reference ground are directly limited by the area of its reference ground. However, since a microwave detector with a flat-panel radiation source structure has certain dimensional requirements for its flat-panel radiation source, the area of its reference ground also has certain dimensional requirements, even if the structure is larger than the area of its flat-panel radiation source. Consequently, the planar dimensions of a microwave detector with a flat-panel radiation source structure in the direction of its reference ground are difficult to reduce relative to the planar dimensions of a microwave detector with a columnar radiation source structure in the direction of its reference ground. Consequently, when a microwave detector with a flat-panel radiation source structure is installed on a lamp, it occupies a large area on the lamp panel, affecting the proper arrangement of the lamp beads on the lamp panel and thus affecting the normal illumination of the lamp.

[0005] That is to say, the currently common microwave detectors with the columnar radiation source structure and the microwave detectors with the flat-plate radiation source structure have obvious defects in their application to lamps. They easily occupy the space of the lamps and affect the normal lighting of the lamps. Utility Model Content

[0006] One purpose of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the directional microwave detection antenna can cooperate with a lamp board in the lamp, and expand its reference ground area with the help of the lamp board, so as to facilitate improving the gain of the directional microwave detection antenna in the directional radiation direction.

[0007] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the directional microwave detection antenna expands its reference ground area with the help of the lamp board to improve the symmetry of its detection beam, thereby improving the coverage of the target detection area.

[0008] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the reference ground of the directional microwave detection antenna can be expanded with the aid of the lamp board, so that the radiation energy of the directional microwave detection antenna in the directional radiation direction is more uniform, thereby improving the degree of matching with the target detection area.

[0009] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the directional microwave detection antenna can operate normally based on the expansion of its reference ground area by the lamp board, thereby reducing the reference ground area of the directional microwave detection antenna, so that the planar size of the directional microwave detection antenna in the direction of its reference ground can be reduced, thereby reducing the area occupied by the directional microwave detection antenna on the lamp board.

[0010] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the height of the directional microwave detection antenna is lowered relative to the height of the microwave detection antenna of the existing columnar radiation source structure, thereby ensuring the aesthetics of the lamp and preventing the directional microwave detection antenna from blocking light.

[0011] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the directional microwave detection antenna includes a substrate, a reference ground and a strip vibrator, wherein the reference ground is carried on one side of the substrate, wherein the strip vibrator has a feeding end, wherein the strip vibrator has a feeding section extending from the feeding end on a side of the substrate carrying the reference ground in a direction away from the reference ground, a folded extension section bent from the other end of the feeding section to extend at the feeding section and spaced apart from the reference ground, and a grounding branch extending from the feeding section on a side of the feeding section facing away from the folded extension section and electrically connected to the reference ground, so that based on the bending of the folded extension section relative to the feeding section, the height of the directional microwave detection antenna in the direction perpendicular to the reference ground can be reduced, thereby ensuring the aesthetics of the lamp and preventing the directional microwave detection antenna from blocking light.

[0012] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the strip vibrator is grounded based on the structural relationship that the grounding branch extends from the feeding section and is electrically connected to the reference ground, so as to help reduce the interference of electromagnetic wave signals received or generated by the directional microwave detection antenna with electromagnetic radiation of adjacent frequency bands, thereby improving the anti-interference performance of the directional microwave detection antenna.

[0013] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the lamp comprises the lamp board and the directional microwave detection antenna, wherein the lamp board has an antenna port and the light-emitting surface of the lamp board carries lamp beads, wherein the directional microwave detection antenna is arranged in a state where the folded extension section passes through the antenna port from the back of the lamp board, so that the lamp board and the reference ground cooperate to form an integrated reference ground to expand the reference ground area of the directional microwave detection antenna.

[0014] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the directional microwave detection antenna includes a conductive grounding body, wherein the conductive grounding body is arranged on a side of the substrate bearing the reference ground and is electrically connected to the reference ground, the conductive grounding body is located between the folded extension section and the reference ground, wherein the height of the conductive grounding body is less than the distance between the folded extension section and the reference ground, with the direction perpendicular to the reference ground being the height direction of the conductive grounding body, and the area of the conductive grounding body is less than the area of the substrate, wherein the directional microwave detection antenna is arranged in a state where the conductive grounding body passes through the antenna opening from the back side of the lamp board, so that based on the electrical connection between the conductive grounding body and the reference ground, the directional microwave detection antenna only needs to protrude from the antenna opening in a state where the side of the conductive grounding body close to the folded extension end is flush with the light-emitting surface of the lamp board, so that the lamp board can cooperate to form an integrated reference ground, effectively reducing the height of the directional microwave detection antenna relative to the light-emitting surface of the lamp board, thereby ensuring the aesthetics of the lamp and preventing the directional microwave detection antenna from blocking light.

[0015] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the area of the conductive grounding body is smaller than the area of the substrate, and the size of the antenna opening only needs to match the conductive grounding body, that is, the size of the antenna opening is sufficient to allow the conductive grounding body to pass through. Based on the structural relationship between the size of the antenna opening and the conductive grounding body, the size of the opening on the lamp board can be effectively reduced, thereby reducing the area occupied by the directional microwave detection antenna on the lamp board and ensuring the normal radiation of the directional microwave detection antenna.

[0016] Another object of the present utility model is to provide a lamp and a directional microwave detection antenna thereof, wherein the conductive grounding body has a avoidance groove, and the conductive grounding body is arranged at intervals from the feeding segment branch in a state where the feeding segment and the grounding branch are inserted into the avoidance groove, so as to ensure that the conductive grounding body covers the bottom of the strip vibrator and ensure the coupling of the conductive grounding body and the lamp board.

[0017] According to one aspect of the present invention, the present invention provides a directional microwave detection antenna, wherein the directional microwave detection antenna comprises:

[0018] a substrate;

[0019] a reference ground, wherein the reference ground is carried on one side of the substrate;

[0020] A bar oscillator, wherein the bar oscillator has a feeding end, wherein the bar oscillator has a feeding section extending from the feeding end on a side of the substrate carrying the reference ground in a direction away from the reference ground, a bent-back extension section extending from the other end of the feeding section and spaced apart from the reference ground, and a grounding branch extending from the feeding section on a side of the feeding section facing away from the bent-back extension section and electrically connected to the reference ground; and

[0021] A conductive grounding body, wherein the conductive grounding body is arranged on a side of the substrate carrying the reference ground and is electrically connected to the reference ground, and the conductive grounding body is located between the folded extension section and the reference ground, wherein the height direction of the conductive grounding body is perpendicular to the reference ground, and the height of the conductive grounding body is less than the distance between the folded extension section and the reference ground, wherein the area of the conductive grounding body is smaller than the area of the substrate.

[0022] In one embodiment, the conductive grounding body has an avoidance groove, wherein the conductive grounding body is disposed spaced apart from the feeding section in a state where the feeding section and the grounding branch are inserted into the avoidance groove.

[0023] In one embodiment, the directional microwave detection antenna includes an antenna substrate, wherein the strip element is carried on the antenna substrate in the form of a strip conductor.

[0024] In one embodiment, the bar-shaped oscillator has an insertion section extending from the feeding end toward the substrate, wherein the insertion section is inserted into the substrate in a state of being spaced apart from the reference ground.

[0025] In one embodiment, the number of the strip oscillators is two, and the two strip oscillators are arranged in a state where the extension directions of the two folded extension sections are opposite, and the directional microwave detection antenna forms a receiving antenna on one of the strip oscillators and forms a transmitting antenna on the other strip oscillator.

[0026] According to another aspect of the present invention, the present invention provides a lamp, wherein the lamp comprises:

[0027] A light board, wherein the light board has a light emitting surface and a back surface opposite to the light emitting surface, and the light board has an antenna port; and

[0028] A directional microwave detection antenna, wherein the directional microwave detection antenna includes a substrate, a reference ground and a strip vibrator, wherein the reference ground is carried on one side of the substrate, wherein the strip vibrator has a feeding end, wherein the strip vibrator has a feeding section extending from the feeding end on the side of the substrate carrying the reference ground in a direction away from the reference ground, a folded extension section bent from the other end of the feeding section to extend at the feeding section and spaced apart from the reference ground, and a grounding branch extending from the feeding section on the side of the feeding section facing away from the folded extension section and electrically connected to the reference ground, wherein the directional microwave detection antenna is arranged in a state where the folded extension section passes through the antenna port from the back of the light board.

[0029] In one embodiment, the directional microwave detection antenna is arranged in a state where the reference ground is flush with the light board.

[0030] In one embodiment, the directional microwave detection antenna includes a conductive grounding body, wherein the conductive grounding body is arranged on a side of the substrate bearing the reference ground and is electrically connected to the reference ground, and the conductive grounding body is located between the folded extension section and the reference ground, wherein the height direction of the conductive grounding body is perpendicular to the reference ground, and the height of the conductive grounding body is less than the distance between the folded extension section and the reference ground, wherein the area of the conductive grounding body is smaller than the area of the substrate.

[0031] In one embodiment, a surface of the conductive grounding body facing the folded extension section is defined as the top surface of the conductive grounding body, wherein the directional microwave detection antenna is arranged in a state where the top surface is flush with the light board.

[0032] In one embodiment, the size of the antenna port matches that of the conductive grounding body.

[0033] In one embodiment, the conductive grounding body has an avoidance groove, wherein the conductive grounding body is disposed spaced apart from the feeding section in a state where the feeding section and the grounding branch are inserted into the avoidance groove.

[0034] In one embodiment, the conductive grounding body is implemented as a PCB board, wherein the top surface of the PCB board is covered with a conductive layer and electrically connected to the reference ground.

[0035] Further objectives and advantages of the present invention will be fully reflected through understanding of the following description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1FIG. 1 is a structural diagram of a directional microwave detection antenna according to an embodiment of the present invention.

[0037] Figures 2A to 2C Schematic diagram of a simulation of the structure of the directional microwave detection antenna according to the embodiment of the present invention.

[0038] Figure 3 2 is a schematic structural diagram of a lamp including the directional microwave detection antenna according to the above embodiment of the present invention.

[0039] Figures 4A to 4C To correspond Figure 3 A simulation schematic diagram of the lamp is shown.

[0040] Figure 5 Schematic diagram of the preferred structure of the directional microwave detection antenna according to the above embodiment of the present utility model.

[0041] Figures 6A to 6C Schematic diagram of a simulation of the preferred structure of the directional microwave detection antenna according to the embodiment of the present invention.

[0042] Figure 7 Schematic diagram of the structure of a lamp including the directional microwave detection antenna of the preferred structure according to the above embodiment of the present utility model.

[0043] Figures 8A to 8C To correspond Figure 7 A simulation schematic diagram of the lamp is shown.

[0044] Figure 9 Schematic diagram of a preferred deformation structure of the directional microwave detection antenna according to the above embodiment of the present utility model.

[0045] Figure 10 Schematic diagram of the structure of a lamp including the directional microwave detection antenna with a preferred deformed structure according to the above embodiment of the present utility model.

[0046] Figure 11 Schematic diagram of a deformed structure of the directional microwave detection antenna according to the above embodiment of the present invention.

[0047] Figure 12 Schematic diagram of a deformed structure of the directional microwave detection antenna according to the above embodiment of the present invention.

[0048] Figure 13 FIG. 1 is a schematic diagram of a deformed structure of the lamp according to the above embodiment of the present invention.

[0049] Figure 14 Schematic diagram of an implementation structure of the lamp according to the above embodiment of the present invention.

[0050] Figure 15 Schematic diagram of an implementation structure of the lamp according to the above embodiment of the present utility model.

[0051] Figure 16 Schematic diagram of an implementation structure of the lamp according to the above embodiment of the present utility model. DETAILED DESCRIPTION

[0052] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0053] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0054] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0055] With reference to the accompanying drawings of the present utility model Figures 1 to 16 A lamp 100 and a directional microwave detection antenna 10 thereof according to an embodiment of the present invention are illustrated, wherein the directional microwave detection antenna 10 is arranged in the lamp 100 and can expand its reference ground area with the help of the lamp board 20 of the lamp 100, so as to improve the gain of the directional microwave detection antenna 10 in the directional radiation direction, and can also reduce the occupied area of the directional microwave detection antenna 10 on the lamp board 20 based on the optimization of the directional microwave detection antenna 10 and the cooperation between the directional microwave detection antenna 10 and the lamp board 20, which is beneficial to ensure the normal operation and lighting effect of the lamp 100.

[0056] Specifically, refer to Figure 1, the structure of the directional microwave detection antenna 10 is illustrated, wherein the directional microwave detection antenna 10 includes a substrate 13, a reference ground 12 and a strip oscillator 11, wherein the reference ground 12 is carried on one side of the substrate 13, wherein the strip oscillator 11 has a feeding end 1101, wherein the strip oscillator 11 has a feeding section 111 extending from the feeding end 1101 on a side of the substrate 13 carrying the reference ground 12 in a direction away from the reference ground 12, a folded extension section 112 extending from the other end of the feeding section 111 and bent at the feeding section 111 and spaced apart from the reference ground 12, and a folded extension section 112 extending from the feeding section 111 on a side of the feeding section 111 facing away from the folded extension section 112 and electrically connected to the reference ground 1 2 has a grounding branch 114, wherein the end of the folded extension section 112 away from the feeding section 111 is the end 1102 of the strip oscillator 11, and the end of the grounding branch 114 connected to the reference ground 12 is the grounding end 1103 of the strip oscillator 11, wherein based on the bending of the folded extension section 112 relative to the feeding section 111, the height of the end 1102 of the strip oscillator 11 is lower than the end of the existing columnar radiation source away from the reference ground, so the end 1102 of the strip oscillator 11 is close to the reference ground 12, that is, the size of the directional microwave detection antenna 10 in the direction perpendicular to the reference ground 12 is reduced, thereby ensuring the aesthetics of the lamp 100 and preventing the directional microwave detection antenna 10 from blocking light.

[0057] It is worth mentioning that the strip oscillator 11 is grounded based on the structural relationship that the grounding branch 114 extends from the feeding section 111 and is electrically connected to the reference ground 12, so as to help reduce the interference of electromagnetic wave signals received or generated by the directional microwave detection antenna 10 by electromagnetic radiation of adjacent frequency bands, thereby improving the anti-interference performance of the directional microwave detection antenna 10.

[0058] In particular, in this embodiment of the present invention, the feeding section 111 extends vertically in a direction away from the reference ground 12 and is perpendicular to the reference ground 12, and the folded extension section 112 extends in a direction perpendicular to the feeding section 111 and is parallel to the reference ground 12, wherein the bar vibrator 11 is inserted and fixed to the substrate 13, specifically, the bar vibrator 11 has an insertion section 113 extending toward the substrate 13 at the feeding end 1101, wherein the insertion section 113 is inserted into the substrate 13 in a state spaced apart from the reference ground 12 to fix the bar vibrator 11.

[0059] It is worth mentioning that in this embodiment of the present invention, the strip vibrator 11 also has an insertion section 113 extending toward the substrate 13 at the grounding end 1103, so as to improve the structural stability of the strip vibrator 11 based on the two insertion sections 113 inserted into the substrate 13. That is to say, the feeding section 111 and the grounding branch 114 jointly form a support for the strip vibrator 11, which is beneficial to improve the physical strength of the strip vibrator 11 and improve the structural stability of the directional microwave detection antenna 10.

[0060] Further references Figures 2A to 2C , wherein the detection beam of the directional microwave detection antenna 10 has a certain directivity and a directional radiation direction.

[0061] Furthermore, when the directional microwave detection antenna 10 is arranged in the lamp 100, the lamp board 20 can cooperate with the directional microwave detection antenna 10 to improve the symmetry of the detection beam of the directional microwave detection antenna 10, so that the radiation energy of the directional microwave detection antenna 10 in the directional radiation direction is more uniform, thereby improving the degree of matching with the target detection area.

[0062] Specifically, refer to Figure 3 , the lamp board 20 has a light-emitting surface 21 and a back surface 22 opposite to the light-emitting surface 21. During specific implementation, the light-emitting surface 21 carries lamp beads, the lamp board 20 has an antenna port 201, and the directional microwave detection antenna 10 is set in a state where the folded extension section 112 passes through the antenna port 201 from the back surface 22 of the lamp board 20, so that the lamp board 20 and the reference ground 12 cooperate to form an integrated reference ground to expand the reference ground area of the directional microwave detection antenna 10.

[0063] contrast Figures 4A to 4C and Figures 2A to 2C It can be seen that after the directional microwave detection antenna 10 is set on the light board 20, the gain of the directional microwave detection antenna 10 in the directional radiation direction is improved, and the beam is more symmetrical and uniform, so as to improve the matching degree between the directional microwave detection antenna 10 and the target detection area.

[0064] It is worth mentioning that the directional microwave detection antenna 10 can work normally based on the expansion of its reference ground area by the light board 20, so that the area of the reference ground 12 of the directional microwave detection antenna 10 can be reduced, so that the planar size of the directional microwave detection antenna 10 in the direction of its reference ground can be reduced, thereby reducing the area occupied by the directional microwave detection antenna 10 on the light board 20.

[0065] Preferably, in this structure, the directional microwave detection antenna 10 is arranged in a state where the reference ground 12 is flush with the light-emitting surface 21 of the lamp board 20, so as to ensure the coupling between the reference ground 12 and the lamp board 20 to form an integrated reference ground, effectively ensuring that the lamp board 20 expands the reference ground area of the directional microwave detection antenna 10.

[0066] Furthermore, the present invention further optimizes the structure of the directional microwave detection antenna 10 based on the purpose of reducing the footprint of the directional microwave detection antenna 10 on the light board 20, that is, reducing the size of the antenna port 201. Figures 6A to 6C As shown, the directional microwave detection antenna 10 further includes a conductive grounding body 14, wherein the conductive grounding body 14 is arranged on a side of the substrate 13 carrying the reference ground 12 and is electrically connected to the reference ground 12, and the conductive grounding body 14 is located between the folded extension section 112 and the reference ground 12, wherein the height direction of the conductive grounding body 14 is perpendicular to the reference ground 12, and the height of the conductive grounding body 14 is less than the distance between the end 1102 and the reference ground 12, that is, the height of the conductive grounding body 14 is less than the distance between the folded extension section 112 and the reference ground 12, wherein the area of the conductive grounding body 14 is less than the area of the substrate 13, that is, the vertical projection area of the conductive grounding body 14 on the plane where the reference ground 12 is located is less than the vertical projection area of the substrate 13 on the plane where the reference ground 12 is located, so as to effectively raise the reference ground 12 based on the setting of the conductive grounding body 14.

[0067] It is worth mentioning that the conductive grounding body 14 has a avoidance groove 141, wherein the conductive grounding body 14 is arranged to be spaced apart from the feeding section 111 in a state where the feeding section 111 and the grounding branch 114 are inserted into the avoidance groove 141, so as to ensure that the conductive grounding body 14 covers the bottom of the strip vibrator 11.

[0068] contrast Figures 6A to 6C and Figures 2A to 2C It can be seen that the preferred structure of the directional microwave detection antenna 10 improves the problem of lateral deviation of the detection beam of the directional microwave detection antenna 10 and improves the uniformity of the detection beam of the directional microwave detection antenna 10.

[0069] Further reference to the drawings of the present invention Figure 7Based on the optimization of the directional microwave detection antenna 10, when the directional microwave detection antenna 10 is set in the lamp 100, the height perpendicular to the lamp board 20 and the occupied area of the light-emitting surface 21 can be reduced, wherein the directional microwave detection antenna 10 is set in a state where the conductive grounding body 14 passes through the antenna port 201 from the back side 22 of the lamp board 20, and based on the electrical connection relationship between the conductive grounding body 14 and the reference ground 12, the conductive grounding body 14 is defined as being directed toward the folded extension One side of the extension section 112 is the top surface 142 of the conductive grounding body 14. The directional microwave detection antenna 10 only needs to protrude from the antenna port 201 in a state where the top surface 142 of the conductive grounding body 14 is flush with the light-emitting surface 21 of the lamp board 20. This allows the lamp board 20 to cooperate to form an integrated reference ground, effectively reducing the height of the directional microwave detection antenna 10 above the light-emitting surface 21 of the lamp board 20, thereby ensuring the aesthetics of the lamp 100 and preventing the directional microwave detection antenna 10 from blocking light.

[0070] It is worth mentioning that the area of the conductive grounding body 14 is smaller than the area of the substrate 13, so the size of the antenna port 201 only needs to match the size of the conductive grounding body 14, that is, the size of the antenna port 201 is sufficient for the conductive grounding body 14 to pass through. Based on the structural relationship between the size of the antenna port 201 and the conductive grounding body 14, the size of the opening on the lamp board 20 can be effectively reduced, thereby reducing the footprint of the directional microwave detection antenna 10 on the lamp board 20 and ensuring the normal radiation of the directional microwave detection antenna 10.

[0071] refer to Figures 8A to 8C As shown, corresponding to Figure 7 In the structure shown, the directional microwave detection antenna 10 has a radiation gain of more than 4.1 dB in the directional radiation direction, and the detection beam tends to be circular, which effectively ensures the detection accuracy of the directional microwave detection antenna 10.

[0072] It is worth mentioning that the specific form of the conductive grounding body 14 does not constitute a limitation to the present invention. Figure 9 and Figure 10As shown, the conductive grounding body 14 is implemented as a PCB board to facilitate the installation and fixation of the conductive grounding body 14 on the substrate 13. The upper surface or the upper and lower surfaces of the PCB board are covered with a conductive layer. The conductive grounding body 14 arranged in the form of a PCB board is soldered and fixed to the substrate 13 through a metallized semicircular hole. The top surface 142 is electrically connected to the reference ground 12 through a metallized via or a metallized semicircular hole. The position of the top surface 142 close to the strip vibrator 11 is not covered by metal to ensure the isolation of the strip vibrator 11 and the conductive grounding body 14. In this way, the structural stability of the antenna 10 is ensured based on the structural deformation of the conductive grounding body 14.

[0073] Furthermore, the conductive grounding body 14 may also be implemented as a metal cover, the conductive grounding body 14 may also be implemented as a metal plate mounted on the substrate 13, or the conductive grounding body 14 may be formed by electroplating metal on a plastic structure.

[0074] In particular, refer to Figure 11 As shown, the strip vibrator 11 is carried on a substrate. Specifically, the directional microwave detection antenna 10 includes an antenna substrate 15, wherein the strip vibrator 11 is carried on the antenna substrate 15 in the form of a strip conductor, wherein the antenna substrate 15 is fixed to the substrate 13 to form a structural relationship between the strip vibrator 11 and the reference ground 12.

[0075] It is worth mentioning that the number of the bar-shaped vibrators 11 does not constitute a limitation to the present invention. Figure 12 As shown, the number of the strip oscillators 11 is two, wherein the two strip oscillators 11 are arranged in a state where the extension directions of the two folded extension sections 112 are opposite, wherein the directional microwave detection antenna 10 forms a receiving antenna in one of the strip oscillators 11 and forms a transmitting antenna in the other strip oscillator 11, and is arranged to be separated for transmission and reception.

[0076] It is also worth mentioning that the light board 20 is preferably a metal light board, such as made of aluminum zinc material. When the light board 20 is made of non-metallic material, such as Figure 13 As shown, a metal layer or metal sheet 211 may also be covered around the antenna port 201 on the light emitting surface 21 of the light board 20 , and the present invention does not impose any limitation on this.

[0077] In particular, when the reference ground 12 and the light-emitting surface 21 are close to each other within a range less than λ / 16, the antenna 10 can expand the reference ground area with the help of the light board 20. Therefore, the arrangement of the antenna 10 on the light board 20 is not limited to the state where the reference ground 12 and the light board 20 are in the same plane, but the reference ground 12 and the light-emitting surface 21 are close to each other within a range less than λ / 16 and tend to be flush.

[0078] In addition, based on the design of the present invention, the light board 20 can be used in conjunction with the directional microwave detection antenna 10 as a reference ground for the directional microwave detection antenna 10, so that the layout of other circuit components of the directional microwave detection antenna 10 is more flexible. For example, it can be set on the side of the substrate 13 carrying the reference ground 12, or it can be carried on the other side of the substrate 13, or it can be carried on both sides of the substrate 13. The present invention does not impose any restrictions on this.

[0079] It is understood that the specific form of the light board 20 does not constitute a limitation to the present invention. Figure 14 , wherein the light panel 20 is arranged in a circular shape, corresponding to Figure 15 , wherein the light board 20 is arranged in a strip shape, corresponding to Figure 16 , wherein the light panel 20 is arranged in a rectangular shape.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0081] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A directional microwave detection antenna, characterized in that: include: a substrate; a reference ground, wherein the reference ground is carried on one side of the substrate; A bar oscillator, wherein the bar oscillator has a feeding end, wherein the bar oscillator has a feeding section extending from the feeding end on a side of the substrate carrying the reference ground in a direction away from the reference ground, a bent-back extension section extending from the other end of the feeding section and spaced apart from the reference ground, and a grounding branch extending from the feeding section on a side of the feeding section facing away from the bent-back extension section and electrically connected to the reference ground; and A conductive grounding body, wherein the conductive grounding body is arranged on a side of the substrate carrying the reference ground and is electrically connected to the reference ground, and the conductive grounding body is located between the folded extension section and the reference ground, wherein the height direction of the conductive grounding body is perpendicular to the reference ground, and the height of the conductive grounding body is less than the distance between the folded extension section and the reference ground, wherein the area of the conductive grounding body is smaller than the area of the substrate.

2. The directional microwave detection antenna according to claim 1, wherein the conductive grounding body has a avoidance groove, wherein the conductive grounding body is arranged to be spaced apart from the feeding section and the grounding branch in a state where the feeding section and the grounding branch are inserted into the avoidance groove. 3 . The directional microwave detection antenna according to claim 1 , wherein the directional microwave detection antenna comprises an antenna substrate, wherein the strip element is carried on the antenna substrate in the form of a strip conductor.

4. The directional microwave detection antenna according to claim 2, wherein the strip-shaped oscillator has an insertion section extending from the feeding end toward the substrate, wherein the insertion section is inserted into the substrate in a state spaced apart from the reference ground.

5. The directional microwave detection antenna according to claim 1, wherein the number of the strip vibrators is two, wherein the two strip vibrators are arranged in a state where the extension directions of the two folded extension sections are opposite, wherein the directional microwave detection antenna forms a receiving antenna on one of the strip vibrators and forms a transmitting antenna on the other strip vibrator.

6. A lamp, characterized in that include: A light board, wherein the light board has a light-emitting surface and a back surface opposite to the light-emitting surface, and the light board has an antenna port; and A directional microwave detection antenna, wherein the directional microwave detection antenna includes a substrate, a reference ground and a strip vibrator, wherein the reference ground is carried on one side of the substrate, wherein the strip vibrator has a feeding end, wherein the strip vibrator has a feeding section extending from the feeding end on the side of the substrate carrying the reference ground in a direction away from the reference ground, a folded extension section bent from the other end of the feeding section to extend at the feeding section and spaced apart from the reference ground, and a grounding branch extending from the feeding section on the side of the feeding section facing away from the folded extension section and electrically connected to the reference ground, wherein the directional microwave detection antenna is arranged in a state where the folded extension section passes through the antenna port from the back of the light board. 7 . The lamp according to claim 6 , wherein the directional microwave detection antenna is arranged in a state where the reference ground is flush with the lamp panel.

8. The lamp according to claim 6, wherein the directional microwave detection antenna includes a conductive grounding body, wherein the conductive grounding body is arranged on a side of the substrate bearing the reference ground and is electrically connected to the reference ground, and the conductive grounding body is located between the folded extension section and the reference ground, wherein the height direction of the conductive grounding body is perpendicular to the reference ground, and the height of the conductive grounding body is less than the distance between the folded extension section and the reference ground, wherein the area of the conductive grounding body is less than the area of the substrate.

9. The lamp according to claim 8, wherein a side of the conductive grounding body facing the folded extension section is defined as the top surface of the conductive grounding body, and wherein the directional microwave detection antenna is arranged in a state where the top surface is flush with the lamp panel.

10. The lamp according to claim 9, wherein the size of the antenna opening matches that of the conductive grounding body.

11. The lamp according to claim 9, wherein the conductive grounding body has a avoidance groove, wherein the conductive grounding body is arranged to be spaced apart from the feeding section in a state where the feeding section and the grounding branch are inserted into the avoidance groove. 12 . The lamp according to claim 9 , wherein the conductive grounding body is implemented as a PCB board, wherein the top surface of the PCB board is covered with a conductive layer and electrically connected to the reference ground.

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