Novel near-field antenna

Abstract

The utility model relates to the technical field of antennas, in particular to a novel near-field antenna, which comprises an antenna body and a receiving and processing assembly, and is characterized in that the antenna body comprises two metal frames which are arranged left and right at an interval and are provided with opposite openings, and an insulating part which is arranged between the two metal frames and is respectively connected with the two metal frames; the metal frames are rectangular, and the receiving and processing assembly is in communication connection with the two metal frames. By implementing the novel near-field antenna provided by the utility model, the antenna body has a larger signal receiving range and certain structural strength to prevent structural damage, so that the reliability and deployment flexibility of a large-scale venue wireless audio system are higher.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a novel near-field antenna. Background Technology

[0002] In wireless audio transmission systems for large indoor venues such as stage performances and conference centers, a distributed antenna layout is typically used to ensure reliable reception of wireless microphone signals. Specifically, the receiving equipment is usually located backstage and connected to a near-field antenna in the performance area via radio frequency cables to address signal attenuation issues caused by long-distance transmission.

[0003] There are two main types of near-field antennas commonly used in existing technologies.

[0004] The first method uses an omnidirectional cylindrical antenna structure, which has the advantage of 360-degree omnidirectional radiation in the horizontal plane, enabling signal coverage over a wide area. However, this type of antenna requires independent support for high-altitude installation, making it highly susceptible to damage from external impacts in performance areas with frequent personnel movement, posing safety hazards and affecting system reliability.

[0005] The second implementation uses a flat, block-shaped antenna structure. A reinforced housing design makes it resistant to being stepped on, allowing it to be placed directly on the ground. However, due to its upward-facing directional radiation characteristic, the effective receiving range of this type of antenna is limited to a finite angle in the vertical direction, and there is significant attenuation in the horizontal coverage area, making it difficult to meet the signal reception requirements of complex stage areas.

[0006] The two existing technologies exhibit a clear performance contradiction in practical applications: while omnidirectional antennas offer ideal coverage, they suffer from structural fragility, whereas ruggedized directional antennas improve physical stability at the expense of signal reception range. This technological bottleneck restricts the reliability and deployment flexibility of wireless audio systems in large venues. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a novel near-field antenna, wherein the antenna body has a large signal receiving range and a certain structural strength to prevent structural damage.

[0008] To solve the above-mentioned technical problems, the present invention provides a novel near-field antenna, comprising an antenna body and a receiving and processing component. The antenna body includes two metal frames spaced apart from each other and with openings facing each other, and an insulating component disposed between the two metal frames and connected to each of the two metal frames. The metal frames are rectangular, and the receiving and processing component is communicatively connected to each of the two metal frames.

[0009] As an improvement to the above technical solution, the insulating component is provided with connecting frames on both the left and right sides for extending into the opening of the metal frame and connecting with the metal frame.

[0010] As an improvement to the above technical solution, the left and right sides of the insulating component are inclined outward from back to front, and the two metal frame openings are provided with cuts that are parallel to the left and right sides of the insulating component.

[0011] As an improvement to the above technical solution, the receiving and processing component is located on the rear side of the metal frame and is communicatively connected to the rear sides of the two metal frames respectively.

[0012] As an improvement to the above technical solution, the receiving and processing component includes an outer cover installed on the rear side of the metal frame, a receiving circuit board connected to the two metal frames respectively, and an output port. The receiving circuit board is disposed on the front side of the insulating component and installed on the rear side of the two connecting frames. The output port is communicatively connected to the receiving circuit board and installed on the rear side of the outer cover.

[0013] As an improvement to the above technical solution, the receiving and processing component further includes a processing circuit board installed inside the outer cover, and the receiving circuit board and the output port are both communicatively connected to the processing circuit board.

[0014] As an improvement to the above technical solution, the receiving and processing component further includes an input port that is communicatively connected to the processing circuit board, and the input port is installed on the rear side of the outer cover.

[0015] As an improvement to the above technical solution, the receiving and processing component further includes an attenuation compensation regulator that is communicatively connected to the processing circuit board, and the attenuation compensation regulator is mounted on the rear side of the outer cover.

[0016] As an improvement to the above technical solution, the antenna body is provided with a clearance groove that runs through the front side of the two metal frames and the front side of the insulating component, and the antenna body also includes an insulating plate placed in the clearance groove.

[0017] As an improvement to the above technical solution, the metal frame is provided with a bracket connection port on the side away from the insulating component.

[0018] Implementing this utility model has the following beneficial effects:

[0019] This utility model discloses a novel near-field antenna that uses a metal frame, insulating components, and receiving and processing components in combination to give the antenna a large signal receiving range and a certain structural strength to prevent structural damage, thereby making the wireless audio system in large venues more reliable and flexible in deployment. Attached Figure Description

[0020] Figure 1 This is a perspective view of the novel near-field antenna in the embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the novel near-field antenna with its outer cover removed in an embodiment of this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram illustrating the installation of the insulating plate into the clearance groove in an embodiment of this utility model.

[0024] Figure 5 This is a schematic diagram showing the matching of the metal frame and the insulating component in an embodiment of this utility model.

[0025] In the picture:

[0026] 100. Antenna body; 110. Metal frame; 111. Cutout; 120. Insulating component; 121. Connecting frame; 130. Leaving groove; 140. Insulating plate; 150. Bracket connection port;

[0027] 200, Receiver processing component; 210, Outer cover; 220, Receiver circuit board; 230, Output port; 240, Processing circuit board; 250, Input port; 260, Attenuation compensation regulator. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 5 As shown in the figure, a novel near-field antenna in this embodiment of the present invention includes an antenna body 100 and a receiving and processing component 200.

[0030] The antenna body 100 includes two metal frames 110 spaced apart and with openings facing each other, and an insulating component 120 disposed between and connected to the two metal frames 110 respectively. In practice, the insulating component 120 can be made of insulating materials such as plastic or rubber, and can be fixedly connected to the two metal frames 110 by means of adhesive, threaded connection, etc., thus separating the two metal frames 110 and preventing them from connecting. This allows the two metal frames 110 to form a structure similar to a cylindrical antenna, with 360-degree omnidirectional radiation characteristics, enabling the reception of signals over a wide range.

[0031] The metal frame 110 is rectangular, and the receiving and processing component 200 is communicatively connected to two metal frames 110 respectively. In practice, the receiving and processing component 200 can be an output port for connecting to an external radio frequency line. The signal received by the antenna body 100 can be connected to the external radio frequency line through this output port and then transmitted to a remote receiver for centralized processing. Alternatively, the receiving and processing component 200 can be a structure including an output port for connecting to an external radio frequency line and a circuit board with processing circuitry. The signal received by the antenna body 100 can be processed by the processing circuitry first, and then transmitted to a remote receiver for centralized processing via the radio frequency line.

[0032] The antenna body 100 is assembled from two metal frames 110 and an insulating component 120, forming an approximately elongated rectangular structure. This structure provides the antenna body 100 with a certain degree of impact resistance and allows for a wider reception range when placed on the ground. Notably, the metal frames 110 are preferably made of aluminum alloy. Aluminum alloy not only provides strong mechanical strength to ensure the structural stability of the antenna body 100 during use, but also has a relatively light weight, facilitating installation and deployment. Furthermore, surface treatments such as blackening and electroplating can give the metal frames 110 a better surface appearance, further enhancing the overall quality and aesthetics of the product.

[0033] The novel near-field antenna of this utility model uses a metal frame 110, an insulating component 120, and a receiving and processing component 200 to cooperate with each other, so that the antenna body 100 has a large signal receiving range and a certain structural strength to prevent structural damage, thus making the reliability and deployment flexibility of the wireless audio system in large venues higher.

[0034] Specifically, such as Figure 5As shown, the insulating member 120 preferably has connecting frames 121 fixed on its left and right sides for extending into and connecting with the metal frame 110. In fact, the connecting frames 121 and the insulating member 120 are integrally formed from the same material and also possess insulating properties. The connection frames 121 increase the contact area between the metal frame 110 and the connecting frames 121, improving the adhesive strength of the metal frame 110 or creating conditions for a threaded connection between the insulating member 120 and the metal frame 110.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the insulating plate 140 is preferably inclined outwards from back to front on both sides. The openings of the two metal frames 110 have cutouts 111 that correspond one-to-one with the left and right sides of the insulating plate 140. In practice, the left side of the insulating component 120 is inclined to the left from back to front, and the right cutout 111 of the left metal frame 110 is parallel to the left side of the insulating component 120. The right side of the insulating plate 140 is inclined to the right from back to front, and the left cutout 111 of the right metal frame 110 is parallel to the right side of the insulating plate 140. This arrangement serves to position the two metal frames 110 and the insulating plate 140 during assembly, ensuring that the antenna body 100 has an approximately elongated rectangular structure. It is worth noting that the two cutouts 111 of the opposite metal frames 110 function as open openings, which helps in receiving signals in the forward range.

[0036] Furthermore, the receiving and processing component 200 is preferably disposed on the rear side of the metal frame 110 and is communicatively connected to the rear side of the two metal frames 110 respectively. When the new near-field antenna is placed on the ground in the performance area, the front side faces the area where the wireless microphone is located. Disposing the receiving and processing component 200 on the rear side of the metal frame 110 can avoid blocking the reception of signals on the upper and front sides of the metal frame 110, while avoiding interference with the ground on the lower side of the metal frame 110, and facilitating connection with external radio frequency lines.

[0037] It should be noted that, as Figures 1 to 3As shown, the receiving and processing component 200 includes an outer cover 210 mounted on the rear side of the metal frame 110, a receiving circuit board 220 connected to two metal frames 110 respectively, and an output port 230. The receiving circuit board 220 is disposed on the front side of the insulating component 120 and mounted on the rear side of the two connecting frames 121. The output port 230 is communicatively connected to the receiving circuit board 220 and mounted on the rear side of the outer cover 210. In practice, the outer cover 210 can be made of insulating material, or the connection between the outer cover 210 and the metal frame 110 can be insulated to prevent the two metal frames 110 from contacting each other. The receiving circuit board 220 can convert the received radio signals into electrical signals and connect to an external radio frequency line through the output port 230 to better transmit the received signals to the receiving equipment in the background.

[0038] Specifically, the receiving and processing component 200 preferably includes a processing circuit board 240 installed inside the outer cover 210. The receiving circuit board 220 and the output port 230 are both communicatively connected to the processing circuit board 240. In practice, the processing circuit board 240 can be communicatively connected to the receiving circuit board 220 via a radio frequency cable, or the processing circuit board 240 and the receiving circuit board 220 can be integrated into a single circuit board. The output port 230 can be soldered onto the processing circuit board 240. The processing circuit board 240 can amplify, filter, demodulate, and perform other processing on the signal received by the receiving circuit board 220, which helps to more clearly reproduce the original audio signal.

[0039] Furthermore, the receiving and processing component 200 preferably includes an input port 250 communicatively connected to the processing circuit board 240, which is mounted on the rear side of the outer cover 210. In practice, the input port 250 can input the audio signal received by the external antenna to the processing circuit board 240 via a radio frequency line. The processing circuit board 240 mixes the audio signal received by the antenna body 100 connected to it with the signal received by the external antenna and outputs it through the output port 230, thus enabling the cascading of multiple receiving antennas.

[0040] Furthermore, the receiving and processing component 200 preferably includes an attenuation compensation regulator 260 that is communicatively connected to the processing circuit board 240. The attenuation compensation regulator 260 is mounted on the rear side of the outer cover 210. The attenuation compensation regulator 260 ensures that the wireless signal can maintain good strength and quality during transmission by compensating for signal attenuation, improving signal quality, enhancing system performance, realizing power control, and improving system reliability.

[0041] It should be noted that the antenna body 100 preferably has a clearance groove 130 that penetrates the front sides of the two metal frames 110 and the front side of the insulating component 120. The antenna body 100 also includes an insulating plate 140 placed within the clearance groove 130. In practice, the insulating plate 140 can be made of insulating materials such as plastic or rubber. Its placement on the front side of the antenna body 100 can cover most of the front sides of the metal frames 110 and the insulating component 120, making the antenna body 100 more aesthetically pleasing and preventing the two metal frames 110 from contacting and connecting with each other.

[0042] In addition, such as Figure 5 As shown, the metal frame 110 preferably has a bracket connection port 150 on the side away from the insulating component 120. In practice, only one metal frame 110 may have a bracket connection port 150, or both metal frames 110 may have bracket connection ports 150. If the right metal frame 110 has a bracket connection port 150, then the right side of the right metal frame 110 has a bracket connection port 150; if the left metal frame 110 has a bracket connection port 150, then the left side of the left metal frame 110 has a bracket connection port 150. The bracket connection port 150 can be connected to an external bracket using threaded connections, snap-fit ​​connections, plug-in connections, etc., so that this novel near-field antenna is not only grounded but can also be suspended from the ground, expanding its application range and providing a certain degree of impact resistance.

[0043] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel near field antenna characterized by: The device includes an antenna body and a receiving and processing component. The antenna body includes two metal frames spaced apart from each other and with openings facing each other, and an insulating component disposed between the two metal frames and connected to each of the two metal frames. The metal frames are rectangular, and the receiving and processing component is communicatively connected to each of the two metal frames.

2. A novel near field antenna as claimed in claim 1, characterized by: The insulating component is fixed with connecting frames on both the left and right sides for extending into the opening of the metal frame and connecting to the metal frame.

3. A novel near field antenna as claimed in claim 2, characterized in that: The insulating component is inclined outward from back to front on both sides, and the two metal frame openings are provided with cuts that are parallel to the left and right sides of the insulating component.

4. A novel near field antenna as claimed in claim 3, characterized in that: The receiving and processing component is located on the rear side of the metal frame and is communicatively connected to the rear sides of the two metal frames respectively.

5. A novel near field antenna as claimed in claim 4, characterized in that: The receiving and processing component includes an outer cover mounted on the rear side of the metal frame, a receiving circuit board connected to the two metal frames respectively, and an output port. The receiving circuit board is disposed on the front side of the insulating component and mounted on the rear side of the two connecting frames. The output port is communicatively connected to the receiving circuit board and mounted on the rear side of the outer cover.

6. A novel near-field antenna as described in claim 5, characterized in that: The receiving and processing component also includes a processing circuit board installed inside the outer cover, and the receiving circuit board and the output port are both communicatively connected to the processing circuit board.

7. A novel near field antenna as claimed in claim 6, characterized by: The receiving and processing component also includes an input port that is communicatively connected to the processing circuit board, and the input port is mounted on the rear side of the outer cover.

8. A novel near field antenna as claimed in claim 7, characterized by: The receiving and processing component also includes an attenuation compensation regulator that is communicatively connected to the processing circuit board, and the attenuation compensation regulator is mounted on the rear side of the outer cover.

9. A novel near field antenna as claimed in claim 5, characterized by: The antenna body is provided with a clearance groove that extends through the front sides of the two metal frames and the front side of the insulating component. The antenna body also includes an insulating plate placed in the clearance groove.

10. A novel near field antenna as claimed in claim 1, wherein: The metal frame has a bracket connection port on the side away from the insulating component.

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