CN212626045U

CN212626045U - GPS antenna and mobile phone

Info

Publication number: CN212626045U
Application number: CN202021732427.8U
Authority: CN
Inventors: 付强
Original assignee: Kunshan Ruixiang Xuntong Communication Technology Co Ltd
Current assignee: Kunshan Ruixiang Xuntong Communication Technology Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-02-26
Anticipated expiration: 2030-08-19

Abstract

The utility model provides a GPS antenna and a mobile phone, wherein the GPS antenna comprises a first radiation branch, a second radiation branch and a third radiation branch which are connected in sequence, and the third radiation branch is positioned at the side of the second radiation branch; one end of the first radiation branch node, which is far away from the second radiation branch node, is provided with a feeding point and a place, and the feeding point and the place are on the same side as the third radiation branch node. Because the GPS antenna is generally positioned at the top of the mobile phone, the third radiation branch is arranged at the side of the second radiation branch, and the feed point and the place are positioned at the same side as the third radiation branch, so that the trend of the current in the GPS antenna is changed, the radiation efficiency of the hemisphere on the GPS antenna is improved, the receiving performance of the GPS is improved, and the problem of how to improve the performance of the GPS antenna on the basis of not increasing the volume of the GPS antenna is solved.

Description

GPS antenna and mobile phone

Technical Field

The utility model relates to a wireless communication technology field, in particular to GPS antenna and cell-phone.

Background

The GPS Positioning system is a system for performing Positioning and navigation in real time in a global area by using satellites, and is abbreviated as GPS (global Positioning system). The GPS positioning system must have a wireless communication function to implement its function, i.e., the GPS terminal must have an antenna for transmitting and receiving signals.

The GPS antenna has four important parameters: gain (Gain), standing wave (VSWR), Noise figure (Noise figure), and Axial ratio (Axial ratio), where Axial ratio is particularly emphasized, which is an important measure of the difference in signal Gain of the terminal machine for different directions. Since the satellites are randomly distributed over the sky of a hemisphere, it is important to ensure that the antenna has similar sensitivity in all directions. The axial ratio is influenced by the performance and the appearance structure of the antenna, the internal circuit of the whole terminal, the electromagnetic interference of components and the like.

With the development of mobile communication, a mobile phone is almost equipped with a GPS function to meet the requirements of users for positioning and navigation. At present, the thickness of the mobile phone is thinner and the screen occupation ratio is larger and larger, so that the design space of the antenna is smaller and smaller; at the same time, the performance requirements for GPS are also increasing. Therefore, how to improve the performance of the GPS antenna without increasing the volume of the GPS antenna is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a GPS antenna and cell-phone to solve how to improve the problem of the performance of GPS antenna on the basis that does not increase GPS antenna volume.

In order to solve the above technical problem, the present invention provides a GPS antenna, which includes a first radiation branch, a second radiation branch, a third radiation branch, a feeding point, and a location; the first radiation branch, the second radiation branch and the third radiation branch are sequentially connected, and the third radiation branch is positioned on the side edge of the second radiation branch; the feeding point and the place are arranged at one end, far away from the second radiation branch, of the first radiation branch and are on the same side as the third radiation branch.

Optionally, in the GPS antenna, one end of the first radiating branch far from the second radiating branch surrounds one end of the third radiating branch far from the second radiating branch.

Optionally, in the GPS antenna, the length of the third radiation branch is greater than the length of the second radiation branch.

Optionally, in the GPS antenna, the length of the third radiation branch is smaller than the sum of the lengths of the first radiation branch and the second radiation branch.

Optionally, in the GPS antenna, a distance between the feeding point and the third radiation branch is greater than a distance between the ground and the third radiation branch.

In order to solve the technical problem, the utility model also provides a mobile phone, the mobile phone includes as above any kind the GPS antenna.

Optionally, in the mobile phone, the mobile phone further includes a matching circuit, and the matching circuit is electrically connected to the GPS antenna.

The utility model provides a GPS antenna and mobile phone, wherein the GPS antenna includes the first radiation branch, the second radiation branch and the third radiation branch which are connected in sequence, the third radiation branch is located the side of the second radiation branch; one end of the first radiation branch node, which is far away from the second radiation branch node, is provided with a feeding point and a place, and the feeding point and the place are on the same side as the third radiation branch node. Because the GPS antenna is generally positioned at the top of the mobile phone, the third radiation branch is arranged at the side of the second radiation branch, and the feed point and the place are positioned at the same side as the third radiation branch, so that the trend of the current in the GPS antenna is changed, the radiation efficiency of the hemisphere on the GPS antenna is improved, the receiving performance of the GPS is improved, and the problem of how to improve the performance of the GPS antenna on the basis of not increasing the volume of the GPS antenna is solved.

Drawings

FIG. 1 is a schematic diagram of a prior art GPS antenna;

fig. 2 is a schematic structural diagram of a GPS antenna provided in this embodiment;

wherein the reference numerals are as follows:

110-a first radiation branch; 111-a feeding point; 112-a location; 120-a second radiation branch; 130-third radiation branch.

Detailed Description

The GPS antenna and the mobile phone according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

It should be noted that "first", "second", and the like in the description and claims of the present invention and the accompanying drawings are used for distinguishing similar objects so as to describe embodiments of the present invention, and are not intended to describe a specific order or sequence, and it should be understood that structures so used may be interchanged where appropriate. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 shows a conventional routing structure of a GPS antenna in the prior art. The conventional GPS antenna comprises a first radiation branch 110, a second radiation branch 120 and a third radiation branch 130 which are connected in sequence, wherein the second radiation branch 120 and the third radiation branch 130 are positioned on the side edge of the first radiation branch 110; a feeding point 111 and a place 112 are disposed at an end of the first radiation branch 110 away from the second radiation branch 120, and the feeding point 111 and the place 112 are disposed at a side of the first radiation branch 110 away from the third radiation branch 130.

When the GPS antenna is in operation, the current emitted by the feed point 111 flows via the first radiating branch 110 through the second radiating branch 120 to the third radiating branch 130. The GPS antenna is usually located at the top of the mobile phone, the feeding point 111 and the location 112 are located toward the bottom of the mobile phone, and the third radiation branch 130 as the terminal of the antenna is close to the top of the mobile phone, which makes the largest contribution to signal reception of the GPS antenna, but the third radiation branch 130 is located at the terminal of the current path, which causes a large loss of current, and further affects the radiation performance of the antenna, resulting in poor GPS performance.

In view of this, the present embodiment provides a GPS antenna, as shown in fig. 2, the GPS antenna includes a first radiation branch 110, a second radiation branch 120, a third radiation branch 130, a feeding point 111, and a location 112; the first radiation branch 110, the second radiation branch 120 and the third radiation branch 130 are connected in sequence, and the third radiation branch 130 is located at the side of the second radiation branch 120; the feeding point 111 and the location 112 are disposed at an end of the first radiating branch 110 away from the second radiating branch 120, and are on the same side as the third radiating branch 130.

The GPS antenna provided in this embodiment changes the routing manner, so that after the GPS antenna is installed on the top of the mobile phone, the feeding point 111 and the location 112 are placed towards the bottom of the mobile phone, and at this time, the first radiation branch 110 and the second radiation branch 120 are close to the top of the mobile phone, and make the greatest contribution to the signal reception of the GPS antenna. Since the current emitted from the feeding point 111 flows through the first radiation branch 110 and the second radiation branch 120 to reach the third radiation branch 130, the current loss at the first radiation branch 110 and the second radiation branch 120 is small, and compared with the prior art, the radiation performance of the antenna is improved. Therefore, the performance of the GPS antenna is improved on the basis of not increasing the volume of the GPS antenna only by changing the wiring mode of the GPS antenna.

Further, in the GPS antenna provided in this embodiment, an end of the first radiation branch 110 away from the second radiation branch 120 surrounds an end of the third radiation branch 130 away from the second radiation branch 120. That is to say, the width of the first radiation branch 110 at the feeding point 111 is widened, the resistance of the first radiation branch 110 is reduced, and then the current loss at the first radiation branch 110 is reduced, so that the performance of the GPS antenna is further improved.

In this embodiment, the length of the third radiation branch 130 is greater than the length of the second radiation branch 120. This provides a longer coupling region between the third radiating branch 130 and the second radiating branch 120, which enhances the performance of the GPS antenna.

In addition, in this embodiment, the length of the third radiation branch 130 is smaller than the sum of the lengths of the first radiation branch 110 and the second radiation branch 120. Therefore, the feeding point 111 and the location 112 can be disposed at one end of the first radiating branch 110 far away from the second radiating branch 120 without increasing the size of the antenna, which is beneficial to the routing design of the GPS antenna.

Preferably, in the GPS antenna provided in this embodiment, a distance between the feeding point 111 and the third radiation branch 130 is greater than a distance between the ground point 112 and the third radiation branch 112. That is, the feeding point 111 is disposed outside, so that electromagnetic interference between the feeding point 111 and the third radiation branch 112 can be avoided, and thus current loss can be reduced, and performance of the GPS antenna can be improved.

The embodiment also provides a mobile phone, which comprises any one of the above GPS antennas. Specifically, the GPS antenna is typically disposed on the top of the handset. Preferably, the mobile phone further comprises a matching circuit, and the matching circuit is electrically connected with the GPS antenna. The design and connection of the matching circuit is well known to those skilled in the art and will not be described herein.

In summary, in the GPS antenna and the mobile phone provided in this embodiment, the GPS antenna includes the first radiation branch, the second radiation branch, and the third radiation branch connected in sequence, and the third radiation branch is located at the side of the second radiation branch; one end of the first radiation branch node, which is far away from the second radiation branch node, is provided with a feeding point and a place, and the feeding point and the place are on the same side as the third radiation branch node. Because the GPS antenna is generally positioned at the top of the mobile phone, the third radiation branch is arranged at the side of the second radiation branch, and the feed point and the place are positioned at the same side as the third radiation branch, so that the trend of the current in the GPS antenna is changed, the radiation efficiency of the hemisphere on the GPS antenna is improved, the receiving performance of the GPS is improved, and the problem of how to improve the performance of the GPS antenna on the basis of not increasing the volume of the GPS antenna is solved.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A GPS antenna is characterized in that the GPS antenna comprises a first radiation branch, a second radiation branch, a third radiation branch, a feed point and a place; the first radiation branch, the second radiation branch and the third radiation branch are sequentially connected, and the third radiation branch is positioned on the side edge of the second radiation branch; the feeding point and the place are arranged at one end, far away from the second radiation branch, of the first radiation branch and are on the same side as the third radiation branch.

2. The GPS antenna of claim 1, wherein an end of the first radiating branch distal from the second radiating branch encompasses an end of the third radiating branch distal from the second radiating branch.

3. The GPS antenna of claim 1, wherein the third radiating stub has a length greater than a length of the second radiating stub.

4. The GPS antenna of claim 3, wherein the length of the third radiating stub is less than the sum of the lengths of the first and second radiating stubs.

5. The GPS antenna of claim 1, wherein a distance between the feed point and the third radiating stub is greater than a distance between the ground and the third radiating stub.

6. A handset, characterized in that it comprises a GPS antenna according to any one of claims 1 to 5.

7. The handset according to claim 6, further comprising a matching circuit, wherein the matching circuit is electrically connected to the GPS antenna.