Novel antenna module integrated positioning system

Abstract

The utility model discloses a novel antenna module integrated positioning system. The novel antenna module integrated positioning system comprises an antenna layer (5), a feed broadband balun (6) and an active circuit PCBA (1), wherein a radio frequency front end part of the active circuit PCBA (1) is integrated with a positioning module (2); the antenna layer (5) is arranged above the active circuit PCBA (1) through the short circuit supporting copper columns (7), the feed broadband balun (6) is located above the active circuit PCBA (1) and penetrates through the antenna layer (5), and on the active circuit PCBA (1), a radio frequency front end part and the positioning module (2) are arranged on the PCB in a coplanar mode; the radio frequency front end part of the positioning antenna and the positioning module are integrated, and an output signal is output in a serial port form, so that better compatibility and good anti-interference capability are achieved. After the antenna and the module are integrated, the installation position can be more random and is not influenced by a space wire harness, and the interference problem is not introduced through a wire rod.

Description

Technical Field

[0001] The utility model relates to the field of positioning technology, and specifically, to a novel antenna module integrated positioning system. Background Art

[0002] Most existing positioning systems use a single antenna connected to a positioning module via an external RF cable. Due to the space required for the antenna body, the antenna signal processing circuit has a low utilization rate of the effective area of ​​the circuit board, resulting in a waste of space. In addition, there is the problem of external interference during the signal output process. According to the existing antenna form, a long RF cable needs to be connected to the outside. The cable is expensive and the transmission effect is poor. The material is also difficult to bend. The RF cable is also inconvenient to install, and the interface takes up a large space. In addition, most positioning antenna manufacturers on the market purchase positioning modules for direct use. The two are not tuned and matched, which will cause the positioning system to fail to achieve its best performance advantages.

[0003] The problems with general high-precision positioning system antennas are:

[0004] 1. Compatibility issues between the antenna and module: If the antenna and module are developed by different companies, there may be problems with compatibility between the antenna and module, which will prevent the antenna positioning system from maximizing its excellent performance.

[0005] 2. The antenna and module are attached to two different PCBA boards: first, the cost increases; second, miniaturization and compactness cannot be achieved; third, production efficiency is affected;

[0006] 3. Using RF lines for connection: This increases the cost and causes line loss, requiring multi-stage amplifiers for gain compensation. Utility Model Content

[0007] This utility model aims to design a novel integrated antenna and module positioning system. This system integrates the RF front-end of the positioning antenna and the positioning module, and outputs signals via a serial port, resulting in improved compatibility and robust interference resistance. The integrated antenna and module allows for more flexible installation locations, eliminating the impact of spatial wiring and interference introduced through wires.

[0008] The utility model is achieved through the following technical solution: a new antenna module integrated positioning system, including an antenna layer, a feeding broadband balun, and an active circuit PCBA that integrates a radio frequency front end part and a positioning module; the antenna layer is arranged above the active circuit PCBA through a short-circuit support copper column, the feeding broadband balun is located above the active circuit PCBA and penetrates the antenna layer, and on the active circuit PCBA, the radio frequency front end part and the positioning module are coplanarly arranged on the PCB.

[0009] To further enhance the novel integrated antenna module positioning system described in this utility model, the following configuration is specifically employed: the feed broadband balun is a cross-embedded structure composed of two similar broadband baluns of equal height, with the feed broadband balun precisely extending through the center of the antenna layer. The two similar broadband baluns, with equal heights, effectively reduce the antenna's axial ratio, thereby increasing its gain. Furthermore, the embedded design helps reduce the antenna's height, achieving a low profile.

[0010] In order to further better realize the novel antenna module integrated positioning system described in the present invention, the following setting method is particularly adopted: the short-circuit support copper column connects the antenna layer and the active circuit PCBA and maintains a vertical state.

[0011] In order to further better realize the novel antenna module integrated positioning system described in the present invention, the following setting method is particularly adopted: one end of the short-circuit support copper column passes through the antenna layer, and the other end penetrates the PCB to achieve electrical connection.

[0012] In order to further better realize the novel antenna module integrated positioning system described in the present utility model, the following configuration is particularly adopted: the radio frequency front end part includes a pre-filter circuit, a low-noise amplifier circuit, a post-filter circuit and an attenuation circuit;

[0013] Among them, the pre-filter circuit is located at the front end of the RF front end part, and is connected to the high-precision positioning antenna through a phase shift combiner. The pre-filter circuit is responsible for the preliminary screening and filtering of the signal from the positioning antenna; it helps to eliminate some high-frequency noise and clutter, and provide a relatively pure signal input for subsequent circuits; the fed broadband balun is a structure of two similar structures and equal heights, which adopts a vertical cross setting and achieves a 90° phase difference through a phase shift combiner; the antenna layer serves as a radiating surface of the positioning antenna.

[0014] The core of the low-noise amplifier circuit is a low-noise amplifier (LNA), whose main function is to enhance and amplify the weak signal received after being processed by the pre-filter circuit. The LNA has an extremely low noise figure, which can minimize the noise introduced by itself while amplifying the signal, thereby ensuring the integrity and accuracy of the signal.

[0015] The post-filter circuit further screens and purifies the signal processed by the low-noise amplifier circuit, removes clutter and noise that may be introduced during the amplification process, and ensures that the quality of the final output signal meets the requirements of the subsequent processing circuit;

[0016] The attenuation circuit is an adjustable circuit that can adjust the signal strength (i.e., used to attenuate the signal after further screening and purification by the post-filter circuit) according to actual needs. The attenuation circuit can appropriately reduce the signal strength to prevent circuit overload or signal distortion, ensuring that the signal can be fully amplified without distortion, so that the RF front-end part can maintain stable signal reception and processing capabilities in various complex environments.

[0017] In order to further better realize the novel antenna module integrated positioning system described in the present utility model, the following configuration is particularly adopted: the positioning module includes a radio frequency signal demodulation processing module, a baseband signal processing module, a positioning solution module, and a power supply and clock control module;

[0018] The RF signal demodulation processing module demodulates the RF signal received from the RF front end into a baseband signal;

[0019] The baseband signal processing module further processes and analyzes the baseband signal to extract positioning parameters;

[0020] The positioning solution module uses the positioning parameters to calculate accurate position and speed information;

[0021] The power supply and clock control module provides stable power supply, controls switches and voltages, and ensures stable operation of the positioning module.

[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0023] The utility model mounts the debugged positioning module and the RF front-end part on the same PCB through SMT patches and makes them coplanar. Compared with the traditional solution, it reduces the RF line between the two, shortens the signal transmission path, avoids the signal from being interfered with by other communication systems, makes the signal reception more stable, and can also greatly reduce costs and improve efficiency.

[0024] The integration of the antenna and module of the present invention can eliminate the need for a cable connection between the two. On the one hand, it can reduce the loss of the connecting line so that a higher gain is not needed to compensate. On the other hand, it can also reduce material costs and improve production efficiency.

[0025] The integration of the antenna and the module of the utility model shortens the transmission path of the signal, can prevent the signal from being interfered with by other communication systems, and makes the signal reception more stable.

[0026] The antenna and module of the utility model are products of the same manufacturer, and the two can be better tuned to achieve the best adaptation, so that the positioning system performance is optimized.

[0027] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or understood by practicing the embodiments of the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. The above and other purposes, features and advantages of the present application will be more clearly shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings. The drawings are not intentionally scaled to actual size, and the focus is on illustrating the main purpose of the present application.

[0029] Figure 1 This is a PCBA diagram of the active circuit that integrates the RF front-end part and the positioning module described in the present invention.

[0030] Figure 2 It is a top view of the overall structure of the utility model.

[0031] Figure 3 It is a three-dimensional diagram of the overall structure of the utility model.

[0032] Figure 4 It is a side view of the overall structure of the utility model.

[0033] Figure 5 This is a block diagram of the electrical connection between the RF front end and the positioning module of the utility model.

[0034] Among them, 1-active circuit PCBA, 2-positioning module, 3-antenna feeding point, 4-serial port output terminal, 5-antenna layer, 6-feed broadband balun, 7-short-circuit support copper column, 8-shielding cover. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the embodiments, but the embodiments of the present invention are not limited thereto.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the present invention.

[0037] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. At the same time, in the description of this application, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the term "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms, etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, and "multiple" means two or more, unless otherwise specifically defined.

[0040] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; they can also refer to electrical connection; they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] The functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0042] Alternatively, the present invention may be implemented in whole or in part through software, hardware, firmware, or any combination thereof. When implemented using software, the present invention may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present invention are generated in whole or in part.

[0043] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, principle, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, principle, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, principle, article or device that includes the elements.

[0044] Example 1:

[0045] The new antenna module integrated positioning system integrates the RF front end of the positioning antenna and the positioning module. The output signal is output in the form of a serial port, which has better compatibility and good anti-interference ability. After the antenna and module are integrated, the installation position can be more arbitrary, without being affected by the space harness, and interference problems will not be introduced through the wire. Figures 1 to 5As shown, it includes an active circuit PCBA1 that integrates an antenna layer 5, a feeding broadband balun 6, and a radio frequency front end part and a positioning module 2; the antenna layer 5 is arranged above the active circuit PCBA1 through a short-circuit support copper column 7, and the feeding broadband balun 6 is located above the active circuit PCBA1 and passes through the antenna layer 5. On the active circuit PCBA1, the radio frequency front end part and the positioning module 2 are coplanarly arranged on the PCB.

[0046] Preferably, one end of the microstrip line on the feeding broadband balun 6 (antenna feeding point 3) is electrically connected to the pre-filter of the RF front-end part by welding, thereby realizing signal communication between the antenna layer 5 and the RF front-end part and the positioning module 2, and ensuring the complete transmission of the signal from the antenna end to the RF front-end part.

[0047] A serial port output terminal 4 is provided on the active circuit PCBA1 through an SMT patch. The serial port output terminal 4 is used to input and output serial port signals, provide power supply, and provide a reference ground to facilitate the connection of devices that require original positioning signals.

[0048] A shielding cover 8 is provided on the active circuit PCBA1, and the shielding cover 8 is connected to the ground of the active circuit PCBA1 by welding, which can better shield the signal and prevent interference.

[0049] Example 2:

[0050] This embodiment is further optimized based on the above embodiment, and the similarities with the above technical solutions are not repeated here. Figures 1 to 5 As shown, in order to further better realize the novel antenna module integrated positioning system described in the present invention, the following setting method is particularly adopted: the feed broadband balun 6 is a cross-embedded structure composed of two broadband baluns of similar structure and equal height, and the feed broadband balun 6 accurately passes through the center of the antenna layer 5. The two broadband baluns with similar structure have equal height structural characteristics, which can effectively reduce the axial ratio of the antenna and thus improve the gain of the antenna. At the same time, the embedded structure design helps to reduce the height of the antenna and achieve the low profile characteristics of the antenna. The use of this feed broadband balun 6 is to effectively convert the balanced structure into an unbalanced structure while meeting the needs of signal transmission.

[0051] Example 3:

[0052] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figures 1 to 5 As shown, in order to further better realize the novel antenna module integrated positioning system described in the present invention, the following setting method is particularly adopted: the short-circuit support copper column 7 connects the antenna layer 5 and the active circuit PCBA1 and maintains a vertical state.

[0053] Example 4:

[0054] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figures 1 to 5 As shown, in order to further better realize the novel antenna module integrated positioning system described in the present invention, the following setting method is particularly adopted: one end of the short-circuit support copper column 7 passes through the antenna layer 5, and the other end penetrates the PCB to achieve electrical connection.

[0055] Example 5:

[0056] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figures 1 to 5 As shown, in order to better realize the novel antenna module integrated positioning system described in the present utility model, the following configuration is particularly adopted: the RF front-end part includes a pre-filter circuit, a low-noise amplifier circuit, a post-filter circuit and an attenuation circuit;

[0057] Among them, the pre-filter circuit is located at the front end of the RF front end part, and is connected to the high-precision positioning antenna through a phase shift combiner. The pre-filter circuit is responsible for the preliminary screening and filtering of the signal from the positioning antenna; it helps to eliminate some high-frequency noise and clutter, and provide a relatively pure signal input for the subsequent circuit; the feed broadband balun 6 is a structure of two pieces with similar structures and equal heights, which are obtained by a vertical cross setting and achieve a 90° phase difference through a phase shift combiner; the antenna layer 5 serves as a radiation surface of the positioning antenna; the positioning antenna preferably adopts a high-precision positioning antenna.

[0058] The core of the low-noise amplifier circuit is a low-noise amplifier (LNA), whose main function is to enhance and amplify the weak signal received after being processed by the pre-filter circuit. The LNA has an extremely low noise figure, which can minimize the noise introduced by itself while amplifying the signal, thereby ensuring the integrity and accuracy of the signal.

[0059] The post-filter circuit further screens and purifies the signal processed by the low-noise amplifier circuit, removes clutter and noise that may be introduced during the amplification process, and ensures that the quality of the final output signal meets the requirements of the subsequent processing circuit;

[0060] The attenuation circuit is an adjustable circuit that can adjust the signal strength (i.e., used to attenuate the signal after further screening and purification by the post-filter circuit) according to actual needs. The attenuation circuit can appropriately reduce the signal strength to prevent circuit overload or signal distortion, ensuring that the signal can be fully amplified without distortion, so that the RF front-end part can maintain stable signal reception and processing capabilities in various complex environments.

[0061] Example 6:

[0062] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figures 1 to 5 As shown, in order to better realize the novel antenna module integrated positioning system described in the present utility model, the following setting method is particularly adopted: the positioning module includes a radio frequency signal demodulation processing module, a baseband signal processing module, a positioning solution module and a power supply and clock control module;

[0063] The RF signal demodulation processing module demodulates the RF signal received from the RF front end into a baseband signal;

[0064] The baseband signal processing module further processes and analyzes the baseband signal to extract positioning parameters;

[0065] The positioning solution module uses the positioning parameters to calculate accurate position and speed information;

[0066] The power supply and clock control module provides stable power supply, controls switches and voltages, and ensures stable operation of the positioning module.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of this application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the principles, ideas, spirit, and principles of this application shall be included within the scope of protection of this application.

Claims

1. The new antenna module integrated positioning system is characterized by: An active circuit PCBA (1) comprising an antenna layer (5), a feeding broadband balun (6), and an integrated radio frequency front end portion and a positioning module (2); the antenna layer (5) is arranged above the active circuit PCBA (1) via a short-circuit support copper column (7); the feeding broadband balun (6) is located above the active circuit PCBA (1) and penetrates the antenna layer (5); on the active circuit PCBA (1), the radio frequency front end portion and the positioning module (2) are coplanarly arranged on the PCB.

2. The novel antenna module integrated positioning system according to claim 1, characterized in that: The feeding broadband balun (6) is a cross-embedded structure composed of two broadband baluns with similar structures and equal heights, and the feeding broadband balun (6) precisely passes through the center of the antenna layer (5).

3. The novel antenna module integrated positioning system according to claim 1, characterized in that: The short-circuit support copper column (7) connects the antenna layer (5) and the active circuit PCBA (1) and maintains a vertical state.

4. The novel antenna module integrated positioning system according to claim 3, characterized in that: One end of the short-circuit support copper column (7) passes through the antenna layer (5), and the other end penetrates the PCB to achieve electrical connection.

5. The novel antenna module integrated positioning system according to claim 1, characterized in that: The radio frequency front end includes a pre-filter circuit, a low-noise amplifier circuit, a post-filter circuit and an attenuation circuit; The pre-filter circuit is located at the front end of the RF front end and is connected to the high-precision positioning antenna through a phase shift combiner. The pre-filter circuit is responsible for preliminarily screening and filtering the signal from the positioning antenna. The low-noise amplifier circuit is used to enhance and amplify the weak signal received after being processed by the pre-filter circuit; The post-filter circuit further screens and purifies the signal processed by the low-noise amplifier circuit to remove clutter and noise that may be introduced during the amplification process; The attenuation circuit can adjust the signal strength according to actual needs. The attenuation circuit can appropriately reduce the signal strength to prevent circuit overload or signal distortion, ensure that the signal can be fully amplified without distortion, and enable the RF front-end part to maintain stable signal reception and processing capabilities in various complex environments.

6. The novel antenna module integrated positioning system according to claim 1, characterized in that: The positioning module includes a radio frequency signal demodulation processing module, a baseband signal processing module, a positioning solution module, and a power supply and clock control module; The RF signal demodulation processing module demodulates the RF signal received from the RF front end into a baseband signal; The baseband signal processing module further processes and analyzes the baseband signal to extract positioning parameters; The positioning solution module uses the positioning parameters to calculate accurate position and speed information; The power supply and clock control module provides stable power supply, controls switches and voltages, and ensures stable operation of the positioning module.

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