Metal double-frequency GPS positioning antenna

Abstract

The utility model relates to the technical field of GPS positioning antennas, and discloses a metal double-frequency GPS positioning antenna, which comprises a main board, an L1 frequency band antenna and an L5 frequency band antenna, the L1 frequency band antenna and the L5 frequency band antenna are respectively arranged on two sides of the upper end of the main board, the bottom end of the L1 frequency band antenna is provided with a first PIN, the bottom end of the L5 frequency band antenna is provided with a second PIN, and the first PIN is connected with the second PIN. The first PIN and the second PIN are welded to the ground of the mainboard, radio frequency connecting lines are welded to feed positions of the L1 frequency band antenna and the L5 frequency band antenna, one end of each radio frequency connecting line is welded to an RF end feed position of the mainboard, reinforcing plates are pasted to the bottoms of the feed positions of the L1 frequency band antenna and the L5 frequency band antenna, and the reinforcing plates are welded to the RF end feed position of the mainboard. According to the utility model, the ground of the mainboard is used as a part of the antenna, so that radio-frequency signals can be stably transmitted and received, the signal radiation performance is effectively improved, and risks of breakage of a welding part of a radio-frequency connecting line due to hollowing and displacement of the antenna during assembly can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of GPS positioning antennas, and more specifically, to a metal dual-frequency GPS positioning antenna. Background Art

[0002] GPS is a terminal that receives satellite signals for positioning or navigation, and a GPS positioning antenna is required to receive signals. The civilian frequency bands of the GPS system are L1 and L5. A single-frequency GPS positioning antenna can only receive signals sent on the L1 band, while a dual-frequency GPS positioning antenna can receive satellite signals from both the L1 and L5 bands at the same time.

[0003] With the trend of miniaturization, dual-frequency GPS positioning antennas are mostly built-in. Due to the limited internal space height of the applied products (usually less than 12mm), the built-in antenna signal will inevitably be absorbed by the ground shielding of the motherboard, which will easily reduce the signal radiation performance and affect the gain and efficiency of the dual-frequency GPS positioning antenna. Based on this, the utility model designs a metal dual-frequency GPS positioning antenna to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a metal dual-frequency GPS positioning antenna to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A metal dual-frequency GPS positioning antenna includes a mainboard, an L1 frequency band antenna, and an L5 frequency band antenna. The L1 frequency band antenna and the L5 frequency band antenna are respectively located on both sides of the upper end of the mainboard. The bottom end of the L1 frequency band antenna is provided with a first PIN pin, and the bottom end of the L5 frequency band antenna is provided with a second PIN pin. The first PIN pin and the second PIN pin are both welded to the ground of the mainboard. The feed points of the L1 frequency band antenna and the L5 frequency band antenna are both welded with a radio frequency connecting wire, one end of the radio frequency connecting wire is welded to the RF end feed point of the mainboard, the bottoms of the feed points of the L1 frequency band antenna and the L5 frequency band antenna are both pasted with a reinforcement plate, the bottoms of the suspended ends of the L1 frequency band antenna and the L5 frequency band antenna are both pasted with a foam seat, and the bottom of the foam seat is pasted on the mainboard.

[0007] As a preferred technical solution of the present invention, the L1 frequency band antenna and the L5 frequency band antenna are both components made of steel sheets.

[0008] As a preferred technical solution of the present invention, the thickness of the L1 frequency band antenna and the L5 frequency band antenna are both 0.5mm-0.6mm.

[0009] As a preferred technical solution of the present invention, the radio frequency connecting line is an RG radio frequency connecting line.

[0010] As a preferred technical solution of the present invention, the length of the radio frequency connecting line is 68mm-70mm.

[0011] As a preferred technical solution of the present invention, the length dimension of the mainboard is 390mm-395mm, and the width dimension of the mainboard is 60mm-63mm.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model welds RF connecting wires at the feed points of the L1 band antenna and the L5 band antenna, one end of the RF connecting wire is welded to the RF end feed point of the mainboard, a first PIN pin is set at the bottom end of the L1 band antenna, and a second PIN pin is set at the bottom end of the L5 band antenna, and the first PIN pin and the second PIN pin are both welded to the ground of the mainboard, so that the ground of the mainboard serves as a part of the antenna, so as to stably realize the transmission and reception of RF signals, effectively improve the signal radiation performance, and improve the gain and efficiency of the dual-frequency GPS positioning antenna, and by pasting reinforcement plates on the bottom of the feed points of the L1 band antenna and the L5 band antenna, and pasting foam seats on the bottom of the suspended ends of the L1 band antenna and the L5 band antenna, and pasting the bottom of the foam seats on the mainboard, the reinforcement plates are used to enhance the structural strength of the L1 band antenna and the L5 band antenna, and the foam seats have a good buffering auxiliary support effect, thereby avoiding the risk of hollowing and fracture of the RF connecting wire welding point and displacement of the antenna assembly, which is conducive to extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the exploded structure of a metal dual-frequency GPS positioning antenna of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of a metal dual-frequency GPS positioning antenna of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the L1 frequency band antenna in a metal dual-frequency GPS positioning antenna of the present invention;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the L5 frequency band antenna in a metal dual-frequency GPS positioning antenna of the present utility model.

[0018] In the figure: 1. Mainboard; 101. L1 band antenna; 102. L5 band antenna; 2. First PIN pin; 3. Second PIN pin; 4. RF connecting line; 5. Reinforcement plate; 6. Foam seat. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, the utility model provides a metal dual-frequency GPS positioning antenna, including a mainboard 1, an L1 frequency band antenna 101 and an L5 frequency band antenna 102, the L1 frequency band antenna 101 and the L5 frequency band antenna 102 are respectively located on both sides of the upper end of the mainboard 1, the bottom end of the L1 frequency band antenna 101 is provided with a first PIN pin 2, and the bottom end of the L5 frequency band antenna 102 is provided with a second PIN pin 3, the first PIN pin 2 and the second PIN pin 3 are both soldered to the ground of the mainboard 1, so that the ground of the mainboard 1 serves as part of the antenna, so as to stably realize the transmission and reception of radio frequency signals, the L1 frequency band antenna 101 and the L5 frequency band antenna 102 The feeding points of the L1 band antenna 101 and the L5 band antenna 102 are welded with RF connecting wires 4, one end of the RF connecting wires 4 is welded to the RF feeding point of the mainboard 1, the bottom of the feeding points of the L1 band antenna 101 and the L5 band antenna 102 are pasted with reinforcing plates 5, the bottom of the suspended ends of the L1 band antenna 101 and the L5 band antenna 102 are pasted with foam seats 6, the bottom of the foam seats 6 are pasted on the mainboard 1, and the reinforcing plates 5 are used to enhance the structural strength of the L1 band antenna 101 and the L5 band antenna 102. The foam seats 6 have a good buffering auxiliary support effect, thereby avoiding the risk of hollow fracture of the welding points of the RF connecting wires 4 and displacement of the antenna assembly.

[0021] Among them, such as Figure 3 and Figure 4 As shown, the L1 band antenna 101 and the L5 band antenna 102 are both made of steel sheets, which achieves the purpose of making the L1 band antenna 101 and the L5 band antenna have good corrosion resistance. The thickness of the L1 band antenna 101 and the L5 band antenna 102 is 0.5mm-0.6mm.

[0022] Among them, such as Figure 1 As shown, the radio frequency connecting line 4 is an RG1.13 radio frequency connecting line and has a length of 68 mm to 70 mm.

[0023] Among them, such as Figure 2 As shown, the length dimension of the main board 1 is 390mm-395mm, and the width dimension of the main board 1 is 60mm-63mm.

[0024] The working principle of this utility model:

[0025] By welding a radio frequency connection line 4 at the feed point of the L1 band antenna 101 and the L5 band antenna 102, one end of the radio frequency connection line 4 is welded to the RF end feed point of the mainboard 1, a first PIN pin 2 is set at the bottom end of the L1 band antenna 101, and a second PIN pin 3 is set at the bottom end of the L5 band antenna 102. The first PIN pin 2 and the second PIN pin 3 are both welded to the ground of the mainboard 1, so that the ground of the mainboard 1 is used as part of the antenna, so as to stably realize the transmission and reception of radio frequency signals and effectively improve the signal radiation performance. In addition, by pasting reinforcing plates 5 on the bottom of the feeding points of the L1 band antenna 101 and the L5 band antenna 102, foam seats 6 are pasted on the bottom of the suspended ends of the L1 band antenna 101 and the L5 band antenna 102, and the bottom of the foam seat 6 is pasted on the main board 1. The reinforcing plates 5 are used to enhance the structural strength of the L1 band antenna 101 and the L5 band antenna 102, and the foam seat 6 plays a good buffering auxiliary support effect, thereby avoiding the risk of hollow fracture at the welding point of the RF connecting line 4 and displacement of the antenna assembly.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal dual-frequency GPS positioning antenna, characterized by: It includes a mainboard (1), an L1 frequency band antenna (101), and an L5 frequency band antenna (102); The L1 frequency band antenna (101) and the L5 frequency band antenna (102) are respectively located on both sides of the upper end of the mainboard (1); a first PIN pin (2) is provided at the bottom end of the L1 frequency band antenna (101); a second PIN pin (3) is provided at the bottom end of the L5 frequency band antenna (102); and the first PIN pin (2) and the second PIN pin (3) are both soldered to the ground of the mainboard (1); The feed points of the L1 frequency band antenna (101) and the L5 frequency band antenna (102) are both welded with a radio frequency connecting line (4), one end of the radio frequency connecting line (4) is welded to the RF end feed point of the mainboard (1), the bottoms of the feed points of the L1 frequency band antenna (101) and the L5 frequency band antenna (102) are both pasted with a reinforcing plate (5), the bottoms of the suspension ends of the L1 frequency band antenna (101) and the L5 frequency band antenna (102) are both pasted with a foam seat (6), and the bottom of the foam seat (6) is pasted on the mainboard (1).

2. The metal dual-frequency GPS positioning antenna according to claim 1, characterized in that: The L1 frequency band antenna (101) and the L5 frequency band antenna (102) are both components made of steel sheets.

3. The metal dual-frequency GPS positioning antenna according to claim 1, characterized in that: The thickness of the L1 frequency band antenna (101) and the L5 frequency band antenna (102) are both 0.5 mm to 0.6 mm.

4. The metal dual-frequency GPS positioning antenna according to claim 1, characterized in that: The radio frequency connecting line (4) is an RG1.13 radio frequency connecting line.

5. The metal dual-frequency GPS positioning antenna according to claim 1, characterized in that: The length of the radio frequency connecting line (4) is 68 mm to 70 mm.

6. The metal dual-frequency GPS positioning antenna according to claim 1, characterized in that: The length dimension of the main board (1) is 390 mm to 395 mm, and the width dimension of the main board (1) is 60 mm to 63 mm.

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