CN213520298U

CN213520298U - Two-in-one antenna

Info

Publication number: CN213520298U
Application number: CN202022304503.1U
Authority: CN
Inventors: 李萌
Original assignee: SHENZHEN CHINO-E COMMUNICATION CO LTD
Current assignee: SHENZHEN CHINO-E COMMUNICATION CO LTD
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-22
Anticipated expiration: 2030-10-16

Abstract

The utility model provides a pair of two unification antennas, including helical antenna body and ferrite, the helical antenna body with the connection is pasted to the ferrite, the helical antenna body is 4-5 loop antenna, and its middle part is vacant, the innermost of helical antenna body sets up the NFC feed point, the outermost end of helical antenna body sets up NFC and presents the place, NFC feed point with NFC presents the place and sets up first lead wire and second lead wire respectively, first lead wire with the second lead wire is connected with the wire winding inductance respectively, first lead wire sets up to WPC presents the place, the second lead wire sets up to WPC feed point. Utilize wire winding inductance to integrate NFC antenna and the wireless antenna that charges of WPC together through above-mentioned design, the cooperation cell-phone automatically selected antenna needs the part of using to realize the saving of space and cost.

Description

Two-in-one antenna

Technical Field

The utility model belongs to the technical field of the antenna, especially, relate to a two unification antennas.

Background

The mobile phone antenna is equipment used for receiving signals on the mobile phone, the old mobile phone has an outward convex antenna, and most of the new mobile phones are hidden in the mobile phone body. The antenna is mainly arranged in the mobile phone, and the inside of the mobile phone cannot be seen in appearance. The mobile phone antenna is a standing wave antenna, impedance mismatch of the antenna will cause a large amount of signal reflection, so that radiation efficiency of the antenna is reduced, meanwhile, due to reflection influence, gain of the antenna in a wide frequency band is jittered, if standing wave of the antenna is 6, breakdown voltage of a front end of the mobile phone will be reduced to 1/6, and power capacity will be reduced. The standing wave of the mobile phone antenna has an inadvertent influence on the antenna efficiency. The standing wave requirement of the antenna, we currently unify the requirement to be less than 3. NFC and wireless charging antenna area on the existing market are big, and the cell-phone needs to sacrifice a lot of spaces and places these two kinds of antennas, and is more time-consuming and laborious.

In summary, there is a need for a solution to the above technical problem, in which two antennas are integrated together to form a whole, and the two antennas are matched with a mobile phone to automatically select a portion to be used, so as to save space and cost.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, the utility model aims to provide a two unification antennas, it is big to aim at solving prior art NFC and wireless charging antenna area, and these two kinds of antennas need be placed in a lot of spaces to the cell-phone, the problem that wastes time and energy relatively.

In order to achieve the purpose, the utility model adopts the following technical proposal: a two-in-one antenna, comprising: the spiral antenna body is connected with the ferrite in a sticking mode, the spiral antenna body is a 4-5 loop antenna, the middle of the spiral antenna body is hollow, an NFC feeding point is arranged at the innermost end of the spiral antenna body, an NFC feeding point is arranged at the outermost end of the spiral antenna body, a first lead and a second lead are respectively arranged at the NFC feeding point and the NFC feeding point, the first lead and the second lead are respectively connected with a winding inductor, the first lead is arranged to be a WPC feeding point, and the second lead is arranged to be a WPC feeding point.

Preferably, the spiral antenna body is a 4-loop antenna.

Preferably, the spiral antenna body and the ferrite are connected by double-sided adhesive tape.

Preferably, the resistance of the helical antenna body is less than 1.5 Ω.

Preferably, the ferrite has a magnetic permeability of 140, a magnetic loss of less than 4, and a thickness of 0.2 to 0.4 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

Drawings

FIG. 1 is a diagram of the antenna portion of a preferred embodiment of the present invention;

FIG. 2 is a structural diagram of a preferred embodiment of the ferrite of the present invention;

fig. 3 is a block diagram of the working principle of the preferred embodiment of the present invention.

Reference numerals:

10. helical antenna body 20, ferrite 30, NFC feed point 40, NFC feed point 50, first lead 60, second lead 70, wound inductor 80.WPC feed point 90.WPC feed point

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-3, the present invention provides a two-in-one antenna, including: the antenna comprises a spiral antenna body 10 and a ferrite 20, wherein the spiral antenna body 10 is connected with the ferrite 20 in a sticking mode, the spiral antenna body 10 is a 4-5 loop antenna, the middle of the spiral antenna body is hollow, an NFC feeding point 30 is arranged at the innermost end of the spiral antenna body 10, an NFC feeding point 40 is arranged at the outermost end of the spiral antenna body 10, a first lead 50 and a second lead 60 are respectively arranged at the NFC feeding point 30 and the NFC feeding point 40, the first lead 50 and the second lead 60 are respectively connected with a winding inductor 70, the first lead 50 is arranged as a WPC feeding point 80, and the second lead 60 is arranged as a WPC feeding point 90.

Specifically, a spiral antenna body 10 with a hollow middle part is arranged to be adhered and connected with a ferrite 20, an NFC feeding point 30 is arranged at the innermost end of the spiral antenna body 10, the NFC feeding point 30 is led out through a wire, an NFC feeding point 40 is arranged at the outermost end of the body of the N-shaped spiral antenna, the NFC feeding point 40 is also led out through a wire, a first lead 50 and a second lead 60 are respectively lapped on the wire of the NFC feeding point 30 and the wire of the NFC feeding point 40, the first lead 50 and the second lead 60 are respectively connected with a wire winding inductor 70, and then the first lead 50 and the second lead 60 are respectively arranged into a WPC feeding point 80 and a WPC feeding point 90. In the working process, if the sensor of the mobile phone senses an NFC signal, an NFC chip in the mobile phone starts to work, and information exchange is started between the NFC chip and external equipment. If the sensor of cell-phone senses the signal of wireless charging seat, then the inside wireless chip that charges of cell-phone begins work, if do not have the signal of wireless charging seat, wireless chip that charges is out of work, when WPC wireless charging antenna begins to charge, the radio frequency chip charging condition that charges can be fed back to the charging process, is full of the back, and the radio frequency chip that charges stops work. The ferrite 20 is used to isolate the electromagnetic radiation from the outside and enhance the antenna radiation, and the size of the ferrite 20 is generally larger than the area of the antenna coil. Therefore, the two antennas are fused together to save space and cost while realizing intelligent induction work of the two antennas.

In some embodiments, the spiral antenna body 10 is a 4-loop antenna, which is more preferable.

In some embodiments, the helical antenna body 10 and the ferrite 20 are connected by double-sided tape.

In some embodiments, the resistance of the helical antenna body 10 is less than 1.5 Ω, which is more preferable.

In some embodiments, the ferrite has a magnetic permeability of 140, a magnetic loss of less than 4, and a thickness of 0.2-0.4mm, and the effect is better.

To sum up, the utility model discloses a theory of operation as follows:

the utility model provides a pair of two unification antennas, including helical antenna body 10 and ferrite 20, helical antenna body 10 with ferrite 20 pastes the connection, helical antenna body 10 is 4-5 loop antenna, and its middle part is vacant, the innermost of helical antenna body 10 sets up NFC feed point 30, the outermost end of helical antenna body 10 sets up NFC and presents place 40, NFC feed point 30 with NFC presents place 40 and sets up first lead wire 50 and second lead wire 60 respectively, first lead wire 50 with second lead wire 60 is connected with wire winding inductance 70 respectively, first lead wire 50 sets up to WPC presents place 80, second lead wire 60 sets up to WPC feed point 90. Through the design, the NFC antenna and the WPC wireless charging antenna are integrated together through the wire winding inductor 70, and the part of the antenna to be used is automatically selected by matching with a mobile phone, so that the space and the cost are saved.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. A two-in-one antenna, comprising: the spiral antenna body is connected with the ferrite in a sticking mode, the spiral antenna body is a 4-5 loop antenna, the middle of the spiral antenna body is hollow, an NFC feeding point is arranged at the innermost end of the spiral antenna body, an NFC feeding point is arranged at the outermost end of the spiral antenna body, a first lead and a second lead are respectively arranged at the NFC feeding point and the NFC feeding point, the first lead and the second lead are respectively connected with a winding inductor, the first lead is arranged to be a WPC feeding point, and the second lead is arranged to be a WPC feeding point.

2. The two-in-one antenna according to claim 1, wherein the helical antenna body is a 4-loop antenna.

3. The two-in-one antenna according to claim 1, wherein the spiral antenna body and the ferrite are bonded together by a double-sided tape.

4. The two-in-one antenna according to claim 1, wherein the resistance of the helical antenna body is less than 1.5 Ω.

5. The two-in-one antenna as recited in claim 1, wherein the ferrite has a magnetic permeability of 140, a magnetic loss of less than 4, and a thickness of 0.2-0.4 mm.