LDS antenna for positioning

Abstract

The utility model provides an LDS antenna used for positioning, and relates to the technical field of antennas, the LDS antenna comprises a shell, a core wire feed point used for connecting a mainboard core wire and a ground wire feed point used for connecting a mainboard ground are arranged in the shell, and a radiation unit is arranged on the outer wall of the shell and used for generating resonance of a preset frequency band. And antenna routing is performed from the inner side of the shell to the outer side of the shell, so that routing on the outer surface of the shell is realized. The antenna body is higher in reliability and consistency; according to the LDS antenna, multi-curved-surface routing can be achieved, routing on the outer side of the shell is achieved, the shell and the antenna are integrated, installation is convenient, meanwhile, the equipment space can be utilized to the maximum extent, the size of the antenna is reduced, and the weight of the antenna is reduced; a cellular positioning technology is combined with a cellular network, so that antenna positioning networking is realized, and the equipment cost is reduced. According to the LDS antenna for positioning provided by the embodiment of the invention, the problems that the antenna functions are not uniform, and the antenna size is limited by the product size and weight requirements, so that the antenna performance is poor are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, in particular to an LDS antenna for positioning. BACKGROUND

[0002] The pigeon locator is an electronic device installed on the pigeon leg, which can feedback the position and state of the pigeon in real time after the pigeon is released. With the development and popularization of pigeon racing and the vigorous promotion of pigeon breeding, the number of pigeon release is increasing, and at the same time, the position, flight route and state of each pigeon need to be monitored in real time, and the deviation of the messenger pigeon and the occasional accident of the domestic pigeon can be timely responded or rescued. At the same time of facilitating monitoring, the pigeon disappearance can be effectively reduced, and the cost of pigeon breeding can be reduced.

[0003] At present, the positioning technology of the pigeon locator mostly uses satellite positioning technology, and uses a GPS antenna to realize the positioning function. However, this technology cannot connect to the network environment for real-time position uploading and monitoring. Some increase an LTE antenna to upload the positioning information by using the LTE antenna. However, the increase of the LTE antenna increases the LTE chip and the antenna of the mainboard, which not only increases the size of the locator, but also increases the weight of the pigeon flying, which interferes with the flight of the pigeon. Therefore, most of the pigeon locators on the market have the problems of large size, large weight and high cost. CONTENT OF THE INVENTION

[0004] The purpose of the embodiment of the present application is to provide an LDS antenna for positioning, which can improve the performance of the antenna and realize the miniaturized setting.

[0005] In one aspect of the embodiment of the present application, an LDS antenna for positioning is provided, which comprises a shell, a core wire feed point for connecting a core wire of a mainboard and a ground wire feed point for connecting a ground wire of the mainboard are arranged in the shell, and a radiation unit is arranged on the outer wall of the shell to generate resonance in a preset frequency band.

[0006] Optionally, the radiation unit comprises a plurality of radiation units, the frequency bands corresponding to the plurality of radiation units are different, and the frequency bands corresponding to the plurality of radiation units form the preset frequency band.

[0007] Optionally, the radiation unit comprises a first radiation unit corresponding to a first frequency band, the first radiation unit comprises three first radiation sub-units, the three first radiation sub-units are located on different surfaces of the outer wall of the shell, and the three first radiation sub-units are connected in sequence.

[0008] Optionally, the first radiation unit further comprises two mainboard ground extension units for increasing the ground length effect.

[0009] Optionally, the radiation unit comprises a second radiation unit corresponding to a second frequency band, the second radiation unit comprises three second radiation sub-units, the three second radiation sub-units are located on different surfaces of the outer wall of the shell, and the three second radiation sub-units are sequentially connected.

[0010] Optionally, the radiation unit comprises a third radiation unit corresponding to a third frequency band, the third radiation unit comprises two third radiation sub-units, the two third radiation sub-units are located on different surfaces of the outer wall of the shell, and the two third radiation sub-units are sequentially connected.

[0011] Optionally, the preset frequency band is 1700-2700 MHz.

[0012] Optionally, the preset frequency band comprises a first frequency band, a second frequency band and a third frequency band, the first frequency band is 1700-2170 MHz, the second frequency band is 2170-2500 MHz, and the third frequency band is 2500-2700 MHz.

[0013] Optionally, the outer wall of the shell is provided with a mainboard power supply positive contact port and a mainboard power supply negative contact port for connecting a mainboard power supply positive pole and a mainboard power supply negative pole respectively.

[0014] Optionally, the outer wall of the shell is provided with a mainboard signal line contact port for connecting a mainboard signal line.

[0015] The LDS antenna for positioning provided in the embodiment of the application realizes the routing on the outer surface of the shell by perforating the antenna routing from the inner side of the shell to the outer side of the shell. The antenna body has higher reliability and consistency. The LDS antenna can realize multi-curved surface routing, realize the routing on the outer side of the shell, integrate the shell and the antenna, facilitate installation, maximize the use of device space, reduce the size of the antenna and the weight of the antenna, combine the cellular positioning technology and the cellular network, realize the networking of one antenna positioning, and reduce the cost of the device. The LDS antenna for positioning provided in the embodiment of the application solves the problem of inconsistent antenna functions and the problem that the size of the antenna is limited by the size and weight requirements of the product, thereby causing poor performance of the antenna. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1is one of the schematic diagrams of the LDS antenna structure for positioning provided in the embodiment;

[0018] Figure 2 is one of the schematic diagrams of the LDS antenna structure for positioning provided in the embodiment;

[0019] Figure 3 is one of the schematic diagrams of the LDS antenna structure for positioning provided in the embodiment;

[0020] Figure 4 is the voltage standing wave ratio diagram of the LDS antenna for positioning provided in the embodiment;

[0021] Figure 5 is the radiation efficiency diagram of the LDS antenna for positioning provided in the embodiment.

[0022] Icon: 10 - housing; 11 - core wire feed point; 12 - ground wire feed point; 13a, 13b, 13c - first radiation subunit; 14a, 14b - main board ground extension unit; 15a, 15b - third radiation subunit; 16a, 16b, 16c - second radiation subunit; 17, 18 - main board signal line contact port; 19 - main board power supply negative pole interface; 20 - main board power supply positive pole interface. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0024] In the description of the present application, it should be noted that the directions or position relationships indicated by the terms “inner”, “outer” and the like are based on the directions or position relationships shown in the drawings, or the directions or position relationships in which the products of the present application are usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second” and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0025] It should also be noted that, unless otherwise explicitly specified and limited, the terms “set”, “connected” should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0026] Cellular network, also known as mobile network, is a kind of mobile communication hardware architecture, which is divided into analog cellular network and digital cellular network. Because the signal coverage of each communication base station constituting the network coverage is hexagonal, the whole network is named like a cell. Common types of cellular network include: GSM network (or pcs-1900), CDMA network, 3G network, FDMA, TDMA, PDC, TACS, AMPS, etc. The composition of cellular network mainly includes the following three parts: mobile station, base station subsystem and network subsystem. The mobile station is the network terminal device, such as mobile phone or some cellular industrial control equipment. The base station subsystem includes the mobile base station (large iron tower / signal tower) commonly seen in daily life, wireless transceiver equipment, special network (usually optical fiber), countless digital devices and so on. We can regard the base station subsystem as a converter between wireless network and wired network.

[0027] LDS technology, i.e. laser direct structuring (Laser Direct Structuring) technology, is a kind of technology for directly forming circuit patterns on three-dimensional plastic devices by laser. This technology can activate metal circuit patterns on the molded plastic support within a few seconds by computer-controlled laser movement, so as to directly laser the antenna on the plastic shell. The advantages of LDS antenna technology include stable and consistent performance of the produced antenna, avoiding interference of internal components, and saving design space. In addition, LDS technology is also widely used in mobile phone antennas, automotive electronic circuits, ATM machine shells and medical-grade hearing aids.

[0028] The LDS antenna in the current pigeon locator device is laser-radiated on the plastic shell by using LDS technology. The essence of the antenna is a passive converter, which converts the guided wave propagating on the transmission line into electromagnetic wave propagating in unbounded medium (usually free space), or performs the reverse conversion. In radio equipment, the components used to transmit or receive electromagnetic waves. Radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy and other engineering systems that use electromagnetic waves to transmit information rely on antennas to work. In addition, in terms of energy transmission by electromagnetic waves, non-signal energy radiation also needs antennas. Generally, antennas have reversibility, that is, the same antenna can be used as a transmitting antenna and a receiving antenna. The basic characteristic parameters of the same antenna as a transmitting or receiving antenna are the same, which is the reciprocity theorem of antenna.

[0029] Based on this, the embodiment of the application provides an LDS antenna for positioning, which can be applied to pigeon positioning device and the like, please refer to Figure 1As shown, it comprises a shell 10, the shell 10 is provided with a core wire feed point 11 for connecting the main board core wire and a ground wire feed point 12 for connecting the main board ground, and a radiation unit is arranged on the outer wall of the shell 10 for generating resonance in a preset frequency band.

[0030] The shell 10 is a hollow structure, and the core wire feed point 11 and the ground wire feed point 12 are arranged on the inner wall of the shell 10 for connecting the main board core wire and the main board ground respectively, and the core wire feed point 11 and the ground wire feed point 12 lead out the wires outside the shell 10.

[0031] The outer wall of the shell 10 is provided with a radiation unit, and the antenna wiring can be perforated from the inside of the shell 10 to the outside of the shell 10 to realize the wiring on the outer surface of the shell 10.

[0032] The application adopts a cellular LDS antenna, which is a LDS technology that perforates the antenna wiring from the inside of the shell 10 to the outside of the shell 10 to realize the wiring on the outer surface of the shell 10. When the LDS technology perforates the antenna wiring, the antenna body has stronger reliability and consistency; the LDS antenna can realize multi-curved surface wiring, realize the wiring on the outside of the shell 10, integrate the shell 10 and the antenna, facilitate installation, maximize the use of device space, reduce the size of the antenna, and reduce the weight of the antenna; the cellular LDS antenna combines the cellular positioning technology and the cellular network to realize a positioning network of an antenna and reduce the cost of the device. The LDS antenna for positioning provided in the application embodiment solves the problem of inconsistent antenna functions, limited antenna size due to product size and weight requirements, and poor antenna performance.

[0033] Specifically, the radiation unit includes a plurality of radiation units, the plurality of radiation units correspond to different frequency bands, and the frequency bands corresponding to the plurality of radiation units form the preset frequency band.

[0034] For example, the preset frequency band of the application is 1700MHz-2700MHz, that is, the LDS antenna for positioning provided in the application embodiment needs to cover the frequency band of 1700MHz-2700MHz. The application divides the preset frequency band into a plurality of frequency bands, which correspond to a plurality of different radiation units, so that the frequency bands corresponding to the plurality of radiation units form the preset frequency band.

[0035] In some embodiments, the radiation unit has three, that is, the preset frequency band is divided into three frequency bands, and the preset frequency band includes a first frequency band, a second frequency band and a third frequency band. Specifically, referring to Figures 1 to 3As shown, the radiation unit includes a first radiation unit corresponding to a first frequency band of 1700-2170 MHz, which is a low frequency band. The first radiation unit includes three first radiation sub-units, namely, a first radiation sub-unit 13a, a first radiation sub-unit 13b, and a first radiation sub-unit 13c. The three first radiation sub-units are located on different surfaces of the outer wall of the shell 10 and are sequentially connected.

[0036] The first radiation unit further includes two mainboard ground extension units, namely, a mainboard ground extension unit 14a and a mainboard ground extension unit 14b, for increasing the ground length effect.

[0037] The mainboard ground extension unit 14a is connected with a mainboard power negative interface 19 on the outer wall of the shell 10, and the mainboard power negative interface 19 and a mainboard power positive interface 20 on the outer wall of the shell 10 form a positive-negative electrode loop connection. The mainboard signal line contact interfaces 17 and 18 on the outer wall of the shell 10 are used to connect the mainboard signal line.

[0038] The first frequency band of 1700-2170 MHz is resonated by the first radiation sub-units 13a, 13b, and 13c, and the working length is one-quarter of the wavelength of the frequency band of 1700-2170 MHz, working in the fundamental mode. Meanwhile, the mainboard ground extension units 14a and 14b increase the ground length effect, so that the antenna radiator ground tends to one-quarter of the wavelength of 1700-2170 MHz, enhancing the performance of the first frequency band.

[0039] The radiation unit includes a second radiation unit corresponding to a second frequency band of 2170-2500 MHz. The second radiation unit includes three second radiation sub-units, namely, a second radiation sub-unit 16a, a second radiation sub-unit 16b, and a second radiation sub-unit 16c. The three second radiation sub-units are located on different surfaces of the outer wall of the shell 10 and are sequentially connected.

[0040] The second frequency band of 2170-2500 MHz is resonated by the second radiation sub-units 16a, 16b, and 16c, and the working length is one-quarter of the wavelength of the frequency band of 2170-2500 MHz, working in the fundamental mode.

[0041] The radiation unit includes a third radiation unit corresponding to a third frequency band of 2500-2700 MHz. The third radiation unit includes two third radiation sub-units, namely, a third radiation sub-unit 15a and a third radiation sub-unit 15b. The two third radiation sub-units are located on different surfaces of the outer wall of the shell 10 and are sequentially connected.

[0042] The third frequency band 2500MHz-2700MHz is resonated by the third radiation subunit 15a and the third radiation subunit 15b, and the working length is a quarter of the wavelength of the frequency band 2500MHz-2700MHz, and the working mode is a base mode.

[0043] Figure 4 and Figure 5 For the voltage standing wave ratio and radiation efficiency of the LDS antenna for positioning of the present application, by Figure 4 、 Figure 5 It can be seen that in the examples of the present application, three radiation units are used to resonate together to achieve an antenna standing wave ratio covering 1700MHz-2700MHz, with a standing wave ratio below 5 and an overall efficiency between 15% and 25%, thereby improving the performance of the antenna.

[0044] The above only describes the embodiments of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An LDS antenna for positioning, characterized by, The shell is internally provided with a core wire feed point for connecting a mainboard core wire and a ground wire feed point for connecting a mainboard ground wire, and an outer wall of the shell is provided with a radiation unit for generating resonance of a preset frequency band.

2. The LDS antenna for positioning according to claim 1, characterized in that, The radiation unit includes multiple radiation units, the multiple radiation units correspond to different frequency bands, and the multiple radiation units correspond to the preset frequency band.

3. The LDS antenna for positioning according to claim 2, characterized in that, The radiation unit includes a first radiation unit corresponding to a first frequency band, and the first radiation unit includes three first radiation sub-units located on different surfaces of the outer wall of the shell and sequentially connected.

4. The LDS antenna for positioning according to claim 3, characterized in that, The first radiation unit further includes two mainboard ground extension units for increasing ground length effect.

5. The LDS antenna for positioning according to claim 3, characterized in that, The radiation unit includes a second radiation unit corresponding to a second frequency band, and the second radiation unit includes three second radiation sub-units located on different surfaces of the outer wall of the shell and sequentially connected.

6. The LDS antenna for positioning according to claim 3, characterized in that, The radiation unit includes a third radiation unit corresponding to a third frequency band, and the third radiation unit includes two third radiation sub-units located on different surfaces of the outer wall of the shell and sequentially connected.

7. The LDS antenna for positioning according to any one of claims 1 to 6, characterized in that, The preset frequency band is 1700-2700 MHz.

8. The LDS antenna for positioning according to claim 7, characterized in that, The preset frequency band includes a first frequency band of 1700-2170 MHz, a second frequency band of 2170-2500 MHz, and a third frequency band of 2500-2700 MHz.

9. The LDS antenna for positioning according to any one of claims 1 to 6, characterized in that, The outer wall of the shell is provided with a mainboard power supply positive contact port and a mainboard power supply negative contact port for respectively connecting a mainboard power supply positive electrode and a mainboard power supply negative electrode.

10. The LDS antenna for positioning according to any one of claims 1 to 6, characterized in that, The outer wall of the shell is provided with a mainboard signal line contact port for connecting a mainboard signal line.

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