CN210778975U - Antenna and electronic equipment - Google Patents
Antenna and electronic equipment Download PDFInfo
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- CN210778975U CN210778975U CN201922482968.3U CN201922482968U CN210778975U CN 210778975 U CN210778975 U CN 210778975U CN 201922482968 U CN201922482968 U CN 201922482968U CN 210778975 U CN210778975 U CN 210778975U
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- 230000001939 inductive effect Effects 0.000 claims abstract description 53
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 11
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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- 230000008447 perception Effects 0.000 description 1
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Abstract
The embodiment of the utility model discloses antenna and electronic equipment to under the limited and metal frame of electronic equipment inner space set structural limitation's the condition, solve the problem that the antenna can not realize the coverage of many working frequency channels. The antenna is applied to electronic equipment and comprises: an antenna body and a feed circuit; the feed circuit comprises a first inductive circuit and a feed source, the first inductive circuit is respectively connected with the antenna body and the feed source, and the feed source is grounded; the first inductive circuit comprises a first branch circuit and a second branch circuit which are connected in parallel, the first branch circuit is provided with a first inductor, and the second branch circuit is provided with a first switch.
Description
Technical Field
The embodiment of the utility model provides a relate to communication technology field, especially relate to an antenna and electronic equipment.
Background
With the continuous development of electronic equipment technology, electronic equipment is continuously developed towards the direction that the screen occupation ratio is large and the thickness is small, so that the designable space in the electronic equipment is more and more limited, and the design space of an antenna is more and more small.
With the development of communication technology, users have increasingly strong requirements for multiband antennas, and in order to cover multiple operating frequency bands, multiple antennas are generally required to be disposed in electronic devices in the related art.
However, for electronic devices with metal shapes, the metal frame is usually used as the antenna body, and due to the limited internal space of the electronic device and the limited structure of the metal frame, the multi-operating-band coverage of the antenna cannot be usually realized.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an antenna and electronic equipment to under the limited and set structural constraint's of metal frame condition in electronic equipment inner space, solve the problem that the antenna can not realize the coverage of many working frequency channels.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an antenna is provided, which is applied to an electronic device, and includes: an antenna body and a feed circuit; wherein,
the feed circuit comprises a first inductive circuit and a feed source, the first inductive circuit is respectively connected with the antenna body and the feed source, and the feed source is grounded;
the first inductive circuit comprises a first branch circuit and a second branch circuit which are connected in parallel, the first branch circuit is provided with a first inductor, and the second branch circuit is provided with a first switch.
In a second aspect, an electronic device is provided, the electronic device comprising an antenna as described in the first aspect.
In the embodiment of the utility model, the covering of a plurality of working frequency bands of the antenna can be realized through the inductor and the switch which are arranged in the feed circuit; and simultaneously, the embodiment of the utility model provides a set up the perceptual circuit in feeder circuit, increase a debugging thinking for the debugging of antenna.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic diagram of an antenna structure provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of an antenna structure according to another embodiment of the present invention;
fig. 3 is a schematic diagram of an antenna structure according to still another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
An embodiment of the utility model provides an antenna is applied to electronic equipment, and this antenna includes: an antenna body and a feed circuit; the feed circuit comprises a first inductive circuit and a feed source, the first inductive circuit is respectively connected with the antenna body and the feed source, and the feed source is grounded; the first inductive circuit comprises a first branch circuit and a second branch circuit which are connected in parallel, the first branch circuit is provided with a first inductor, and the second branch circuit is provided with a first switch.
In the embodiment of the present invention, the coverage of multiple working frequency bands of the antenna can be realized through the first inductor and the first switch arranged in the feeding circuit; and simultaneously, the embodiment of the utility model provides a set up first perception circuit in feeder circuit, increase a debugging thinking for the debugging of antenna.
Optionally, as an embodiment, the first branch is further provided with a second switch connected in series with the first inductor; the second branch circuit is also provided with a second inductor which is connected with the first switch in series.
Optionally, as an embodiment, the first inductive circuit further comprises a third branch connected in parallel with the first branch and the second branch; and the third branch circuit is provided with a third inductor and a third switch which are connected in series.
Optionally, as an embodiment, the antenna further includes a second inductive circuit connected to ground, where the second inductive circuit is connected to the antenna body; the second inductive circuit is provided with a fourth inductor.
Optionally, as an embodiment, the antenna further includes a second inductive circuit connected to ground, where the second inductive circuit is connected to the antenna body; the second inductive circuit comprises a fourth inductor, a matching component and a fourth switch; the matching component is connected with the fourth switch in series; and the fourth inductor is connected with the matching component and the fourth switch in parallel.
Optionally, as an embodiment, the fourth switch multiplexes a switch pin in the first inductive circuit.
Optionally, as an embodiment, the matching component includes at least one of a capacitor and a fifth inductor.
Optionally, as an embodiment, the antenna includes a first ground circuit.
Optionally, as an embodiment, a connection point of the first ground circuit and the antenna body is a first connection point, a connection point of the second inductive circuit and the antenna body is a second connection point, a connection point of the feed circuit and the antenna body is a third connection point, and the second connection point is between the first connection point and the third connection point.
In order to explain the antenna provided in the above embodiments of the present disclosure in detail, the following description will be made in conjunction with several specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides an antenna, which can be applied to an electronic device, wherein the electronic device includes a metal frame with gaps filled with a non-metal material, and the antenna with a medium-high frequency bandwidth shown in fig. 1 is an electronic device, and the operating frequency can cover 1710MHz-2690 MHz.
As can be seen from fig. 1, the antenna mainly includes an antenna body (not numbered), a feeding circuit 10, a grounding circuit 20 (corresponding to the second inductive circuit in the foregoing description), and a grounding circuit 30, and the specific components and connection relationship of the antenna will be described in detail below.
The feed circuit 10 includes an inductive circuit connected between a point B of the antenna body and the feed 103, and the feed 103 is connected to a reference ground.
The inductive circuit mainly comprises at least one inductive element 101 and at least one switching element 102, the at least one inductive element 101 and the at least one switching element 102 being connected in series, respectively.
In the alternative provided in fig. 1, the inductive circuit mainly comprises 3 inductive elements 101 and 3 switching elements 102, and the 3 inductive elements 101 and the 3 switching elements 102 are respectively connected in series between the point B of the antenna body and the feed 103.
Fig. 1 provides an alternative in which the inductive circuit comprises the first branch, the second branch and the third branch mentioned in the foregoing.
Optionally, the 3 switch elements 102 are 1-pole 3T switches.
The ground circuit 20 also includes an inductive circuit that connects the point C of the antenna body and a reference ground. Fig. 1 provides an alternative in which the inductive circuit comprises mainly 1 inductive element 201.
The ground circuit 30 connects the D point of the antenna body and the reference ground.
The antenna body can be a metal frame of the electronic device, and comprises a point A, a point B, a point C and a point D. Where point a may be the tip of the antenna body and to the left of point a in fig. 1 may be the clearance area. The point B and the point C are both between the point A and the point D, and the point B is between the point A and the point C.
The embodiment of the utility model provides a to the C point of antenna body, also there is not special requirement with the selection of the tie point C point of antenna body ground circuit 20, C point is between B point and D point, and through the inductance value size of adjustment C point position and inductance element 201, can change the radiation length of antenna, further increase the scope of the working frequency channel of antenna.
The feed 103 may fine-tune the impedance location by matching so that the impedance for the band range of B1/3/39/40/41 is in the fourth quadrant of the smith chart; meanwhile, the inductance elements 101 with different inductance values are connected in series, so that the impedance of a required frequency band is matched to be close to 50 ohms, and the resonance function of the antenna with multiple working frequency bands is realized.
The embodiment of the utility model provides an in, feed 103 passes through feed circuit 10 and connects in the antenna body, and like this, feed 103 draws forth received antenna signal to the antenna body through feed circuit 10, and the antenna body that lies in between B point and the D point simultaneously can go out this antenna signal radiation to form the resonance of this antenna at first working frequency channel.
Meanwhile, the antenna body can also excite the current to the grounding circuit 20, and the grounding circuit 20 further radiates the antenna signal outwards to form resonance of the antenna in the second working frequency band.
The point B to the point A of the antenna body are in an open state, and the path of antenna resonance can be further increased, so that the resonance of the antenna in the third working frequency band is formed.
Meanwhile, the number of the inductive elements 101 connected to the feed circuit 10 can be controlled by controlling the on/off of the plurality of switch elements 102, and the resonance of the antenna in a plurality of operating frequency bands is further realized.
In the embodiment shown in fig. 1, when the antenna receives and transmits, the number of the switch elements 102 in the closed state may be 1, 2, or 3, and by controlling the number of the switch elements 102 in the closed state and the different inductance values of the plurality of inductance elements 101, resonance of the antenna in a plurality of operating frequency bands may be achieved.
The embodiment of the utility model provides a under the limited and set structural constraint's of metal frame condition in electronic equipment inner space, provide the well high frequency antenna scheme that has a plurality of working frequency channels, realize that well high frequency channel efficiency bandwidth extends.
The embodiment of the utility model provides an antenna structure is simple, occupation space is little and the debugging of being convenient for, is convenient for satisfy the miniaturization and the multifrequency demand of antenna.
On the basis of the embodiment shown in fig. 1, as shown in fig. 2, another embodiment of the present invention provides an antenna, which mainly includes: the antenna body (not numbered), the feeding circuit 10, the grounding circuit 20 (corresponding to the second inductive circuit in the foregoing description), and the grounding circuit 30, and the specific components and connection relationship of the above-mentioned antenna will be described in detail below.
Similar to the embodiment shown in fig. 1, the feed circuit 10 in this embodiment comprises an inductive circuit connected between the point B of the antenna body and the feed 103, and the feed 103 is connected to a reference ground. The inductive circuit mainly comprises at least one inductive element 101 and at least one switching element 102, the at least one inductive element 101 and the at least one switching element 102 being connected in series, respectively.
The grounding circuit 20 also includes an inductance element 201, a switching element 202, and a matching element 203, wherein the switching element 202 and the matching element 203 are connected in series between the point C of the antenna body and a reference ground; the inductance element 201 is connected in parallel with the switching element 202 and the matching element 203 between the point C of the antenna body and the reference ground.
The matching component 203 includes at least one of an inductance element and a capacitance element, and the connection relationship between the inductance element and the capacitance element in the matching component 203 is not limited in the embodiment of the present invention.
The ground circuit 30 connects the D point of the antenna body and the reference ground.
The embodiment of the utility model provides an in, feed 103 passes through feed circuit 10 and connects in the antenna body, and like this, feed 103 draws forth received antenna signal to the antenna body through feed circuit 10, and the antenna body that lies in between B point and the D point simultaneously can go out this antenna signal radiation to form the resonance of this antenna at first working frequency channel.
Meanwhile, the antenna body can also excite the current to the grounding circuit 20, and the grounding circuit 20 further radiates the antenna signal outwards to form resonance of the antenna in the second working frequency band.
The point B to the point A of the antenna body are in an open state, and the path of antenna resonance can be further increased, so that the resonance of the antenna in the third working frequency band is formed.
Meanwhile, the number of the inductive elements 101 connected to the feed circuit 10 can be controlled by controlling the on/off of the plurality of switch elements 102, and the resonance of the antenna in a plurality of operating frequency bands is further realized.
In the embodiment shown in fig. 2, when the antenna receives and transmits, the number of the switch elements 102 in the closed state may be 1, 2, or 3, and by controlling the number of the switch elements 102 in the closed state and the different inductance values of the plurality of inductance elements 101, resonance of the antenna in a plurality of operating frequency bands may be achieved.
The embodiment of the utility model provides a under the limited and set structural constraint's of metal frame condition in electronic equipment inner space, provide the well high frequency antenna scheme that has a plurality of working frequency channels, realize that well high frequency channel efficiency bandwidth extends.
The embodiment of the utility model provides an antenna structure is simple, occupation space is little and the debugging of being convenient for, is convenient for satisfy the miniaturization and the multifrequency demand of antenna.
The embodiment of the utility model provides an on the basis of the embodiment that fig. 1 shows, increase 1 way switch element 202 at the C point, through the reasonable selection that matches components and parts 203 for the working frequency channel can be in B point and C point and switch over in a flexible way, thereby makes to adjust more in a flexible way. The embodiment of the utility model provides a frequency channel switching debugging of well high frequency channel is more nimble.
Optionally, in an alternative embodiment, the switch element 202 multiplexes the switch pins of the switch element 102, which facilitates further reduction of the antenna size and cost savings.
On the basis of the embodiment shown in fig. 2, an embodiment of the present invention provides an antenna, which can be applied to an electronic device, wherein the electronic device includes a metal frame with gaps filled with a non-metal material, and the antenna of the low frequency band of the electronic device shown in fig. 3 has an operating frequency covering 700MHz-960 MHz.
The feed circuit 10 in this embodiment comprises an inductive circuit connected between the point B of the antenna body and the feed 103, a switching element 102 and a feed 103, the feed 103 being connected to a reference ground. The inductive circuit mainly comprises an inductive element 101, the inductive element 101 and the switching element 102 being connected in parallel.
The grounding circuit 20 (corresponding to the second inductive circuit in the foregoing) also includes an inductive element 201, a switching element 202, and a matching component 203, the switching element 202 and the matching component 203 are connected in series between the point C of the antenna body and the reference ground; the inductance element 201 is connected in parallel with the switching element 202 and the matching element 203 between the point C of the antenna body and the reference ground.
The matching component 203 includes at least one of an inductance element and a capacitance element, and the connection relationship between the inductance element and the capacitance element in the matching component 203 is not limited in the embodiment of the present invention.
The ground circuit 30 connects the D point of the antenna body and the reference ground.
The embodiment of the utility model provides an in, feed 103 passes through feed circuit 10 and connects in the antenna body, and like this, feed 103 draws forth received antenna signal to the antenna body through feed circuit 10, and the antenna body that lies in between B point and the D point simultaneously can go out this antenna signal radiation to form the resonance of this antenna at first working frequency channel.
Meanwhile, the antenna body can also excite the current to the grounding circuit 20, and the grounding circuit 20 further radiates the antenna signal outwards to form resonance of the antenna in the second working frequency band.
The point B to the point A of the antenna body are in an open state, and the path of antenna resonance can be further increased, so that the resonance of the antenna in the third working frequency band is formed.
At the same time, by controlling the on/off of the switch element 102, it is possible to control whether the inductance element 101 is connected to the feed circuit 10, and further realize the resonance of the antenna in a plurality of frequency bands.
The embodiment of the utility model provides a under the limited and set structural constraint's of metal frame condition in electronic equipment inner space, provide the well high frequency antenna scheme that has a plurality of working frequency channels, realize that well high frequency channel efficiency bandwidth extends.
The embodiment of the utility model provides an antenna can make the initial impedance of 700MHz-960 MHz's frequency channel scope at the fourth quadrant, makes corresponding frequency channel match to near 50 ohms through series inductance element 101 to the inductance that realizes switching different inductance values realizes 700MHz-960 MHz's frequency channel and covers. Adding the switching element 202 at C may make the band adjustment more flexible.
Optionally, in an alternative embodiment, the switch element 202 multiplexes the switch pins of the switch element 102, which facilitates further reduction of the antenna size and cost savings.
Based on the utility model discloses above-mentioned embodiment provides the antenna, the utility model discloses still provide an electronic equipment, this electronic equipment includes the antenna as described in an arbitrary embodiment in the foregoing.
The electronic devices include, but are not limited to, mobile phones, tablet computers, personal digital processors, car computers, cameras, music players, laptop computers, e-book readers, or navigators.
The embodiment of the utility model provides an electronic equipment can reach the same or equivalent technological effect with the antenna that introduces in several preceding embodiments, no longer gives unnecessary details here.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts in the embodiments are referred to each other.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention essentially or the portions contributing to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a plurality of instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (10)
1. An antenna, applied to an electronic device, the antenna comprising: an antenna body and a feed circuit; wherein,
the feed circuit comprises a first inductive circuit and a feed source, the first inductive circuit is respectively connected with the antenna body and the feed source, and the feed source is grounded;
the first inductive circuit comprises a first branch circuit and a second branch circuit which are connected in parallel, the first branch circuit is provided with a first inductor, and the second branch circuit is provided with a first switch.
2. The antenna of claim 1, wherein said first branch is further provided with a second switch in series with said first inductor; the second branch circuit is also provided with a second inductor which is connected with the first switch in series.
3. The antenna of claim 2, wherein the first inductive circuit further comprises a third branch connected in parallel with the first branch and the second branch;
and the third branch circuit is provided with a third inductor and a third switch which are connected in series.
4. An antenna according to any of claims 1 to 3, wherein the antenna further comprises a second inductive circuit connected to ground;
the second inductive circuit is provided with a fourth inductor, one end of the fourth inductor is connected with the antenna body, and the other end of the fourth inductor is grounded.
5. An antenna according to any of claims 1 to 3, wherein the antenna further comprises a second inductive circuit connected to ground;
the second inductive circuit comprises a fourth inductor, a matching component and a fourth switch;
the matching component is connected with the fourth switch in series;
and the fourth inductor is connected with the matching component and the fourth switch in series in parallel.
6. The antenna of claim 5, wherein the fourth switch multiplexes a switch pin in the first inductive circuit.
7. The antenna of claim 5, wherein the matching component comprises at least one of a capacitor and a fifth inductor.
8. The antenna of claim 5, wherein the antenna includes a first ground circuit.
9. The antenna of claim 8, wherein the connection point of the first ground circuit to the antenna body is a first connection point, the connection point of the second inductive circuit to the antenna body is a second connection point, the connection point of the feed circuit to the antenna body is a third connection point,
the second connection point is between the first connection point and the third connection point.
10. An electronic device, characterized in that it comprises an antenna according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922482968.3U CN210778975U (en) | 2019-12-30 | 2019-12-30 | Antenna and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922482968.3U CN210778975U (en) | 2019-12-30 | 2019-12-30 | Antenna and electronic equipment |
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| Publication Number | Publication Date |
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| CN210778975U true CN210778975U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922482968.3U Active CN210778975U (en) | 2019-12-30 | 2019-12-30 | Antenna and electronic equipment |
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| CN (1) | CN210778975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241517A (en) * | 2021-05-10 | 2021-08-10 | 南昌黑鲨科技有限公司 | Split-feed type mobile phone antenna |
-
2019
- 2019-12-30 CN CN201922482968.3U patent/CN210778975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241517A (en) * | 2021-05-10 | 2021-08-10 | 南昌黑鲨科技有限公司 | Split-feed type mobile phone antenna |
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