CN112701459A - Four-in-one antenna and communication terminal - Google Patents
Four-in-one antenna and communication terminal Download PDFInfo
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- CN112701459A CN112701459A CN202011514302.2A CN202011514302A CN112701459A CN 112701459 A CN112701459 A CN 112701459A CN 202011514302 A CN202011514302 A CN 202011514302A CN 112701459 A CN112701459 A CN 112701459A
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Abstract
The invention provides a four-in-one antenna and a communication terminal, which comprise a first branch, a second branch, a third branch and a fourth branch which are sequentially arranged at intervals; the first branch, the second branch, the third branch and the fourth branch are at least partially arranged in parallel; one end of the second branch is connected with one end of the first branch and one end of the third branch, and the other end of the second branch is connected with one end of the fourth branch. The four branches can be coupled by the parallel arrangement of the first branch, the second branch, the third branch and the fourth branch, so that different frequency bands can be met, and the performance of the antenna is better; by adjusting the intervals and the lengths among the four branches, the frequency band requirements of GPS, Bluetooth, 2.4G WiFi and 5G WiFi can be met simultaneously, and the problem of poor antenna performance caused by a large number of antennas in the existing communication terminal is solved.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a four-in-one antenna and a communication terminal.
Background
With the rapid development of the communication industry, the functions of communication terminals, especially mobile communication terminals, are more and more powerful, and in order to support these functions, different antennas are usually required to implement them, so that there are multiple antennas on one communication terminal. The problem that is caused by this is that, because the volume of the communication terminal is limited, as the number of the antennas increases, the clearance and the occupied area of each antenna become smaller and smaller, which not only causes the performance of each antenna to be worse due to the limitation of the layout space, but also causes the interference between the antennas to be serious, and further causes the bandwidth of the antennas to be narrower and the performance to be worse.
To solve the above problems, there are generally three ways:
1. the first mode is as follows: the routing of the antenna is changed, so that the coupling, the parasitic coupling and the like among the routing of the antenna are changed, the performance of the antenna is improved, and the bandwidth of the antenna is expanded;
2. the second mode is as follows: the antenna is connected with the matching circuit, and the bandwidth of the antenna can be expanded and the performance can be improved within a certain range through the tuning of the matching circuit;
3. the third mode is as follows: the antennas corresponding to different functions are combined, so that the number of the antennas is reduced, interference among the antennas is reduced through the reduction of the number, and the performance of the antennas is improved.
However, the above three methods still have respective defects:
1. in the first mode, the routing of the antenna needs to be changed, so that the requirement on the space where the antenna can be distributed is high, and the first mode is not suitable for the case of small space;
2. the second approach requires costly design and fabrication of the matching circuit; meanwhile, due to the addition of the matching circuit, the number of electronic components in the equipment is large, interference between the antenna and the components can be caused, and the performance of the antenna can be influenced; in addition, if the circuit is matched for a plurality of antennas, the area of the circuit main board is increased, which is not beneficial to the miniaturization of the communication terminal;
3. the third mode is that the antennas with similar frequency range are combined at present, and when the antenna is used specifically, time-sharing control is needed to realize corresponding functions, so that the utilization rate of the antenna functions is reduced; in addition, the current antenna combination is mostly a two-in-one antenna, and the saving of the antenna space is very limited.
Disclosure of Invention
The invention aims to provide a four-in-one antenna and a communication terminal, which at least solve the problem of poor antenna performance caused by the large number of antennas in the conventional communication terminal.
In order to solve the above technical problem, the present invention provides a four-in-one antenna, which includes a first branch, a second branch, a third branch and a fourth branch arranged at intervals in sequence; the first branch, the second branch, the third branch and the fourth branch are at least partially arranged in parallel; one end of the second branch is connected with one end of the first branch and one end of the third branch, and the other end of the second branch is connected with one end of the fourth branch.
Optionally, in the four-in-one antenna, the four-in-one antenna further includes feeding points and places arranged at intervals, the feeding points and the places are arranged on a side of the first branch away from the second branch, and a minimum distance between the feeding points and the places is 0.5 mm.
Optionally, in the four-in-one antenna, one end of the first branch, which is far away from the end connected to the second branch, is connected to a radiation branch, and the radiation branch is perpendicular to the first branch along a direction far away from the second branch.
Optionally, in the four-in-one antenna, the feeding point is disposed closer to the radiation branch than the location, and a minimum distance between the feeding point and the radiation branch is 6.2 mm.
Optionally, in the four-in-one antenna, an interval between areas where the first branch and the second branch are arranged in parallel is 0.4 ± 0.1 mm.
Optionally, in the four-in-one antenna, an interval between areas where the second branch and the third branch are arranged in parallel is 0.6 ± 0.1 mm.
Optionally, in the four-in-one antenna, an interval between areas where the third branch and the fourth branch are arranged in parallel is 0.4 ± 0.1 mm.
Optionally, in the four-in-one antenna, one end of the third branch, which is far away from the end connected to the second branch, is connected to a coupling branch, and the coupling branch is perpendicular to the third branch along a direction far away from the second branch.
Optionally, in the four-in-one antenna, a coupling groove is formed at one end of the fourth branch connected to the second branch, and the width of the coupling groove is 0.4-0.6 mm.
In order to solve the above technical problem, the present invention further provides a communication terminal, where the communication terminal includes the four-in-one antenna as described in any one of the above.
The invention provides a four-in-one antenna and a communication terminal, which comprise a first branch, a second branch, a third branch and a fourth branch which are sequentially arranged at intervals; the first branch, the second branch, the third branch and the fourth branch are at least partially arranged in parallel; one end of the second branch is connected with one end of the first branch and one end of the third branch, and the other end of the second branch is connected with one end of the fourth branch. The four branches can be coupled by the parallel arrangement of the first branch, the second branch, the third branch and the fourth branch, so that different frequency bands can be met, and the performance of the antenna is better; by adjusting the intervals and the lengths among the four branches, the frequency band requirements of GPS, Bluetooth, 2.4GWIFi and 5GWIFi can be met simultaneously, and the problem of poor antenna performance caused by a large number of antennas in the conventional communication terminal is solved.
Drawings
Fig. 1 is a schematic structural diagram of a four-in-one antenna provided in this embodiment;
fig. 2 is a schematic structural dimension diagram of the four-in-one antenna provided in this embodiment;
fig. 3 is a diagram of a debugging result of the four-in-one antenna provided in the present embodiment;
wherein the reference numerals are as follows:
100-first branch; 101-radiation branch; 200-second branch; 300-third branch; 301-coupling branches; 400-fourth branch; 500-a feed point; 600-site.
Detailed Description
The four-in-one antenna and the communication terminal according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming 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 the terms "first," "second," and the like in the description and claims of the present invention and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, and it is to be understood that such structures as are used are interchangeable 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.
The present embodiment provides a four-in-one antenna, as shown in fig. 1, the four-in-one antenna includes a first branch 100, a second branch 200, a third branch 300, and a fourth branch 400, which are sequentially arranged at intervals; the first branch 100, the second branch 200, the third branch 300 and the fourth branch 400 are at least partially arranged in parallel; one end of the second branch 200 is connected to one end of the first branch 100 and one end of the third branch 300, and the other end of the second branch 200 is connected to one end of the fourth branch 400.
According to the four-in-one antenna provided by the embodiment, the four branches can be coupled through the parallel arrangement of the parts among the first branch, the second branch, the third branch and the fourth branch, so that different frequency bands can be met, and the performance of the antenna is better; by adjusting the intervals and the lengths among the four branches, the frequency band requirements of GPS, Bluetooth, 2.4GWIFi and 5GWIFi can be met simultaneously, and the problem of poor antenna performance caused by a large number of antennas in the conventional communication terminal is solved.
In this embodiment, the four-in-one antenna further includes a feeding point 500 and a location 600 that are disposed at an interval, the feeding point 500 and the location 600 are disposed on a side of the first branch 100 away from the second branch 200, and a minimum distance between the feeding point 500 and the location 600 is 0.5 mm.
Preferably, in this embodiment, the lengths of the feeding point 500 and the ground point 600 are both 3 ± 1 mm. The bandwidth of the GPS and the bandwidth of the 5gwif are controlled by adjusting the length, width, and interval between the feeding point 500 and the location 600.
Further, in this embodiment, a radiation branch 101 is connected to an end of the first branch 100 away from the end connected to the second branch 200, and the radiation branch 101 is perpendicular to the first branch 100 along a direction away from the second branch 200. Because the radiation branch 101 is perpendicular to the first branch 100 along the direction away from the second branch 200, the emission angle of the electromagnetic frequency on the first branch 100 is wide, and the signal receiving and transmitting performance is good.
Specifically, in this embodiment, the feeding point 500 is disposed closer to the radiation branch 101 than the location 600, and the minimum distance between the feeding point 500 and the radiation branch 101 is 6.2 mm. The radiation branch 101 is arranged on one side close to the feed point 500, so that the radiation branch 101 and the feed point 500 can be coupled, the distance between the radiation branch 101 and the feed point 500 and the length of the radiation branch are adjusted, and the integral higher or lower movement of the frequency band of 5GWIFi can be controlled; meanwhile, as the radiation branch 101 is close to the feed point 500 and far away from the site 600, the current flowing out from the feed point 500 can be preferentially coupled with the radiation branch 101, so that the coupling efficiency of the 5GWIFi frequency band is improved, and the antenna performance of the 5G WiFi is improved.
In addition, in the four-in-one antenna provided in this embodiment, the interval between the areas where the first branch 100 and the second branch 200 are arranged in parallel is 0.4 ± 0.1 mm; the interval of the areas arranged in parallel of the second branch 200 and the third branch 300 is 0.6 +/-0.1 mm; the interval between the areas of the third branches 300 and the fourth branches 400 arranged in parallel is 0.4 +/-0.1 mm. Through a great deal of simulation verification, the inventor finds that when the interval between the areas where the first branch 100 and the second branch 200 are arranged in parallel is 0.4 ± 0.1mm, the coupling efficiency between the first branch 100 and the second branch 200 is better; when the interval of the areas where the second branch 200 and the third branch 300 are arranged in parallel is 0.6 +/-0.1 mm, the coupling efficiency between the second branch 200 and the third branch 300 is better; when the interval between the areas where the third branches 300 and the fourth branches 400 are arranged in parallel is 0.4 ± 0.1mm, the coupling efficiency between the third branches 300 and the fourth branches 400 is better. Meanwhile, the higher or lower center frequency shift of bluetooth and 2.4GWiFi can be adjusted by controlling the length of the second branch 200 (the frequency bands of bluetooth and 2.4GWiFi are the same frequency band); the movement of the center frequency of the GPS can be adjusted to be higher or lower by controlling the length of the fourth branch 400. Therefore, the center frequency of each frequency band can be changed while the overall performance of each function of the antenna is ensured.
Still further, in this embodiment, a coupling branch 301 is connected to an end of the third branch 300 away from the second branch 200, and the coupling branch 301 is perpendicular to the third branch 300 along a direction away from the second branch 200. The working principle of the coupling branch 301 is similar to that of the radiation branch 101, so that the coupling area between the third branch 300 and the fourth branch 400 can be increased while the transceiving performances of Bluetooth and 2.4GWIFi are ensured, and the coupling efficiency between the third branch 300 and the fourth branch 400 is further increased.
In order to ensure the low frequency efficiency of the GPS, in the present embodiment, a coupling groove is formed at one end of the fourth branch 400 connected to the second branch 200. The inventor researches and finds that when the width of the coupling groove is 0.4-0.6 mm, the low-frequency performance of the GPS is the best. In addition, in order to ensure that the loss of the whole GPS frequency band is as small as possible, the width of the trace of the fourth branch 400 may be set to be wider, so as to ensure that sufficient current flows into the fourth branch 400, and the current flowing through the fourth branch 400 has less resistive loss.
The embodiment also provides a communication terminal, which comprises the four-in-one antenna provided by the embodiment. The communication terminal can include but not limited to various mobile communication terminals such as cell phones, notebook computers, intelligent wearable devices and the like.
Hereinafter, a preferred embodiment of the present embodiment will be described with reference to fig. 2 and 3.
As shown in fig. 1 and 2, the four-in-one antenna includes a first branch 100, a second branch 200, a third branch 300, and a fourth branch 400, which are sequentially disposed from bottom to top, and central regions of the four branches are parallel to each other. A feeding point 500 and a point 600 are connected below the first branch 100.
Wherein the left side of the first branch 100, the left side of the second branch 200 and the left side of the third branch 300 are communicated with each other, and since the feeding point 500 is disposed on the first branch 100, the routing of the first branch 100 at the junction is wide, thereby ensuring that sufficient current flows into the second branch 200 and the third branch 300. Further, the interval of the parallel region between the first branch 100 and the second branch 200 is 0.4mm, the interval of the parallel region between the second branch 200 and the third branch 300 is 0.6mm, and the interval of the parallel region between the third branch 300 and the fourth branch 400 is 0.4 mm.
The fourth branch 400 is connected to the other end of the second branch 200 and is again located at the uppermost end of the overall antenna, so that the fourth branch 400 at least partially surrounds the free end of the third branch 300. In this embodiment, the fourth branch 400 is integrally connected to one end of the second branch 200 in an L-shape, and surrounds the third branch 300.
In this embodiment, the free end of the third branch 300 is provided with a coupling branch section 301, so that the coupling efficiency between the fourth branch 400 and the third branch 300 is improved. In addition, a coupling groove with a width of 0.4-0.6 mm is formed at one end of the fourth branch 400 connected to the second branch 200, thereby ensuring the frequency and current intensity flowing through the fourth branch 400.
The free end of the first branch 100 is connected with a radiation branch 101, the distance between the radiation branch 101 and the feed point 500 is 6.25mm, the distance between the feed point 500 and the place 600 is 0.5mm, the feed point 500 and the place 600 have the same size, and the length is 3mm, so that the frequency band bandwidth of the GPS and the bandwidth of 5GWIFi are ensured.
In this embodiment, the corner of each branch of the antenna is preferably 90 °, so as to ensure the omnidirectional transceiving performance of the antenna.
After the basic antenna structure is constructed, the length and the width of each branch are adjusted and tested by combining the practical application environment of the four-in-one antenna provided by the embodiment, so as to match the bandwidth, the frequency band and the performance requirements of the GPS, the Bluetooth, the 2.4GWIFi and the 5 GWIFi. Debugging methods are well known to those skilled in the art and will not be described in detail herein.
The test performance of the four-in-one antenna after debugging is shown in fig. 3, the four-in-one antenna generates obvious resonance in the ranges of a GPS frequency band, a Bluetooth frequency band, a 2.4GWIFi frequency band and a 5GWIFi frequency band, and the efficiency performance is good, so that the four functional antennas are combined into one, the performance of the antenna is ensured, and the space of the antenna is saved.
In summary, the four-in-one antenna and the communication terminal provided in this embodiment include a first branch, a second branch, a third branch and a fourth branch that are sequentially arranged at intervals; the first branch, the second branch, the third branch and the fourth branch are at least partially arranged in parallel; one end of the second branch is connected with one end of the first branch and one end of the third branch, and the other end of the second branch is connected with one end of the fourth branch. The four branches can be coupled by the parallel arrangement of the first branch, the second branch, the third branch and the fourth branch, so that different frequency bands can be met, and the performance of the antenna is better; by adjusting the intervals and the lengths among the four branches, the frequency band requirements of GPS, Bluetooth, 2.4GWIFi and 5GWIFi can be met simultaneously, and the problem of poor antenna performance caused by a large number of antennas in the conventional communication terminal is solved.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A four-in-one antenna is characterized in that the four-in-one antenna comprises a first branch, a second branch, a third branch and a fourth branch which are arranged at intervals in sequence; the first branch, the second branch, the third branch and the fourth branch are at least partially arranged in parallel; one end of the second branch is connected with one end of the first branch and one end of the third branch, and the other end of the second branch is connected with one end of the fourth branch.
2. The quad-in-one antenna according to claim 1, further comprising a feeding point and a location point arranged at intervals, the feeding point and the location point being arranged on a side of the first branch away from the second branch, and a minimum distance between the feeding point and the location point being 0.5 mm.
3. The quad-antenna according to claim 2, wherein a radiating branch is connected to an end of the first branch away from the connection with the second branch, and the radiating branch is perpendicular to the first branch in a direction away from the second branch.
4. The four-in-one antenna as claimed in claim 3, wherein the feeding point is disposed closer to the radiating stub than the location, and a minimum distance between the feeding point and the radiating stub is 6.2 mm.
5. The quad-in-one antenna as claimed in claim 1, wherein the first branch and the second branch are parallel to each other and have an interval of 0.4 ± 0.1 mm.
6. The quad-in-one antenna according to claim 1, wherein the second branch and the third branch are parallel to each other and have an interval of 0.6 ± 0.1 mm.
7. The quad-in-one antenna according to claim 1, wherein the third branch and the fourth branch are disposed in parallel at an interval of 0.4 ± 0.1 mm.
8. The quad-in-one antenna according to claim 1, wherein a coupling branch is connected to an end of the third branch away from the end connected to the second branch, and the coupling branch is perpendicular to the third branch in a direction away from the second branch.
9. The quad-in-one antenna as claimed in claim 1, wherein a coupling slot is formed at an end of the fourth branch connected to the second branch, and the width of the coupling slot is 0.4-0.6 mm.
10. A communication terminal, characterized in that it comprises a four-in-one antenna according to any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514302.2A CN112701459B (en) | 2020-12-21 | 2020-12-21 | Four-in-one antenna and communication terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011514302.2A CN112701459B (en) | 2020-12-21 | 2020-12-21 | Four-in-one antenna and communication terminal |
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| CN112701459A true CN112701459A (en) | 2021-04-23 |
| CN112701459B CN112701459B (en) | 2023-06-23 |
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| US9362621B1 (en) * | 2013-05-23 | 2016-06-07 | Airgain, Inc. | Multi-band LTE antenna |
| CN106207399A (en) * | 2014-12-01 | 2016-12-07 | 纬创资通股份有限公司 | Antenna, broad-band antenna and electronic installation |
| CN106207400A (en) * | 2014-12-04 | 2016-12-07 | 纬创资通股份有限公司 | Wideband monopole type antenna, electronic installation and Anneta module |
| CN111082220A (en) * | 2019-12-31 | 2020-04-28 | 歌尔科技有限公司 | Miniaturized multiband antenna and electronic device |
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2020
- 2020-12-21 CN CN202011514302.2A patent/CN112701459B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070109201A1 (en) * | 2005-11-14 | 2007-05-17 | Motorola, Inc. | Proximity-coupled folded-j antenna |
| CN102117966A (en) * | 2011-03-17 | 2011-07-06 | 华为终端有限公司 | Printed antenna |
| CN103247856A (en) * | 2012-02-03 | 2013-08-14 | 联想移动通信科技有限公司 | Antenna device and mobile terminal |
| US9362621B1 (en) * | 2013-05-23 | 2016-06-07 | Airgain, Inc. | Multi-band LTE antenna |
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Address after: 215300 Room 009, No. 55, Shengchuang Road, Yushan Town, Kunshan, Suzhou, Jiangsu Province Patentee after: KUNSHAN RUIXIANG XUNTONG COMMUNICATION TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 215300 no.1689-5 Zizhu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN RUIXIANG XUNTONG COMMUNICATION TECHNOLOGY Co.,Ltd. Country or region before: China |
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