CN104900985B - Antenna and wireless communication equipment - Google Patents
Antenna and wireless communication equipment Download PDFInfo
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- CN104900985B CN104900985B CN201410073601.5A CN201410073601A CN104900985B CN 104900985 B CN104900985 B CN 104900985B CN 201410073601 A CN201410073601 A CN 201410073601A CN 104900985 B CN104900985 B CN 104900985B
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Abstract
The invention provides an antenna and wireless communication equipment. The antenna, feed the point including the signal, ground feeds the point, low frequency antenna branch portion, high frequency antenna first branch portion and high frequency antenna second branch portion, low frequency antenna branch portion includes first branch portion, second branch portion and third branch portion, first branch portion and high frequency antenna first branch portion are connected respectively on high frequency antenna second branch portion, signal feed point connects in first branch portion, ground feeds the point and connects on high frequency antenna second branch portion, still be connected with fourth branch portion on the second branch portion, fourth branch portion extends towards the direction of high frequency antenna second branch portion dorsad, fourth branch portion sets up side by side with third branch portion. In a high-frequency band, the fourth branch part can optimize the bandwidth resonance performance, and the overall radiation performance of the antenna is further improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to an antenna and wireless communication equipment.
Background
An antenna is an important component in the field of wireless communication, and the rapid development of wireless communication technology puts higher requirements on the bandwidth and radiation performance of the antenna. Taking mobile phone wireless communication as an example, in order to meet the requirement of 4G wireless communication, the bandwidth range to be covered by the antenna is expanded from 824mhz to 1850mhz required in the 2G era to multiple frequency bands such as 824mhz to 960mhz, 1710mhz to 2170mhz, 2300mhz to 2400mhz, and 2500mhz to 2690mhz. Meanwhile, the strength of the radiation performance of the antenna directly influences the quality of wireless communication.
Fig. 1 shows an antenna in the prior art, which specifically includes: a signal feed point 15, a ground feed point 14, a low-frequency antenna branch portion 11, a high-frequency antenna first branch portion 12, and a high-frequency antenna second branch portion 13, wherein the low-frequency antenna branch portion 11 includes a first branch portion 111, a second branch portion 112, and a third branch portion 113, one end portion of the first branch portion 111 is connected to one end portion of the second branch portion 112, the first branch portion 111 and the second branch portion 112 form an L-shaped structure, the other end portion of the second branch portion 112 is connected to the third branch portion 113, the second branch portion 112 and the third branch portion 113 form a T-shaped structure, the first branch portion 111 and the high-frequency antenna first branch portion 12 are connected to the high-frequency antenna second branch portion 13, the high-frequency antenna first branch portion 12 is located between the first branch portion 111 and the third branch portion 113, the signal feed point 15 is connected to the first branch portion 111, and the ground feed point 14 is connected to the high-frequency antenna second branch portion 13.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: as shown in fig. 2, the bandwidth range covered by the antenna is 824mhz to 2620MHz, wherein the bandwidth covered by the low frequency band (the trough formed between the frequency points of curves 1, 2, and 3 in the figure) is 824MHz to 960MHz, which meets the requirement of 4G low frequency bandwidth, the bandwidth covered by the edge frequency points 4 and 9 of the two high frequency bands (the trough formed between the frequency points of curves 4 and 5 and the trough formed between the frequency points of 6, 7, 8, and 9 in the figure) and the bandwidth covered by the part between the middle protruding frequency points 5 and 6 is 1710mhz to 2620MHz, and the bandwidth required by the 4G in the high frequency band is 1710mhz to 2690mhz. The antenna in the prior art cannot completely cover the range of 4G bandwidth and cannot meet the standard requirement of 4G bandwidth. The depth of the return loss curve of the antenna in the prior art is about-5 dB on average, the radiation performance of the antenna can meet the general communication requirements, but the communication quality of the antenna is difficult to meet the user requirements in the severe communication environment.
Disclosure of Invention
The invention provides an antenna and wireless communication equipment, which realize the expansion of antenna bandwidth and the enhancement of antenna radiation performance so as to meet the requirements of the development of wireless communication technology on the relevant performance of the antenna.
The invention provides an antenna, which comprises a signal feed point, a ground feed point, a low-frequency antenna branch part, a high-frequency antenna first branch part and a high-frequency antenna second branch part, wherein the low-frequency antenna branch part comprises a first branch part, a second branch part and a third branch part, one end part of the first branch part is connected to one end part of the second branch part, the first branch part and the second branch part form an L-shaped structure, the other end part of the second branch part is connected to the third branch part, the second branch part and the third branch part form a T-shaped structure, the first branch part and the high-frequency antenna first branch part are respectively connected to the high-frequency antenna second branch part, the high-frequency antenna first branch part is positioned between the first branch part and the third branch part, the signal feed point is connected to the first branch part, the ground feed point is connected to the high-frequency antenna second branch part, the second branch part is also connected to the high-frequency antenna second branch part, the third branch part and the high-frequency antenna third branch part are arranged side by side, and the high-frequency antenna second branch part extends towards the back of the high-frequency antenna.
Further, the fourth branch and the third branch are parallel to each other.
Further, the distance between the fourth branch part and the third branch part is 0.5mm to 3mm.
Furthermore, the length of the fourth branch part ranges from 3mm to 15mm, and the length of the third branch part ranges from 2mm to 12mm.
Furthermore, the width of the fourth branch part ranges from 0.5mm to 5mm.
The invention also provides a wireless communication device, which comprises an antenna, wherein the antenna comprises a signal feed point, a ground feed point, a low-frequency antenna branch part, a high-frequency antenna first branch part and a high-frequency antenna second branch part, the low-frequency antenna branch part comprises a first branch part, a second branch part and a third branch part, one end part of the first branch part is connected to one end part of the second branch part, the first branch part and the second branch part form an L-shaped structure, the other end part of the second branch part is connected to the third branch part, the second branch part and the third branch part form a T-shaped structure, the first branch part and the high-frequency antenna first branch part are respectively connected to the high-frequency antenna second branch part, the high-frequency antenna first branch part is positioned between the first branch part and the third branch part, the signal feed point is connected to the first branch part, the ground feed point is connected to the high-frequency antenna second branch part, the second branch part is also connected to the second branch part, the third branch part and the high-frequency antenna second branch part are arranged side by side, and the high-frequency antenna second branch part extends towards the back of the high-frequency antenna.
Further, the fourth branch and the third branch are parallel to each other.
Further, the distance between the fourth branch part and the third branch part is 0.5mm to 3mm.
Furthermore, the length of the fourth branch part ranges from 3mm to 15mm, and the length of the third branch part ranges from 2mm to 12mm.
Further, the width of the fourth branch part is 0.5 mm-5 mm.
According to the antenna and the wireless communication equipment, the fourth branch part is added on the low-frequency antenna branch part, and tests show that compared with the prior art, the added fourth branch part has no great influence on the low-frequency range, so that the resonance performance of the antenna in the low-frequency range is ensured; in a high-frequency band, the newly-added high-frequency resonance effectively expands the bandwidth of the antenna, and meanwhile, the depth of a return loss curve of the whole antenna is increased to some extent, so that the whole radiation performance of the antenna is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an antenna in the prior art;
FIG. 2 is a return loss plot of the antenna of FIG. 1;
FIG. 3 is a schematic structural diagram of an antenna according to an embodiment of the present invention;
fig. 4 is a return loss plot for the antenna of fig. 3.
Detailed Description
In order to make the objects and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3, the antenna according to the embodiment of the present invention is used for wireless communication of a 4G mobile phone, and includes a signal feed point 25, a ground feed point 24, a low-frequency antenna branch portion 21, a high-frequency antenna first branch portion 22, and a high-frequency antenna second branch portion 23, where the low-frequency antenna branch portion 21 includes a first branch portion 211, a second branch portion 212, and a third branch portion 213, one end portion of the first branch portion 211 is connected to one end portion of the second branch portion 212, the first branch portion 211 and the second branch portion 212 form an L-shaped structure, the other end portion of the second branch portion 212 is connected to the third branch portion 213, the second branch portion 212 and the third branch portion 213 form a T-shaped structure, the first branch portion 211 and the high-frequency antenna first branch portion 22 are connected to the high-frequency antenna second branch portion 23, the high-frequency antenna first branch portion 22 is located between the first branch portion 211 and the third branch portion 213, the signal feed point 25 is connected to the first branch portion 211, and the ground feed point 24 is connected to the high-frequency antenna second branch portion 23; the second branch portion 212 is further connected to a fourth branch portion 214, the fourth branch portion 214 is arranged in parallel with the third branch portion 213, and the fourth branch portion 214 extends in a direction away from the high-frequency antenna second branch portion 23.
Specifically, the antenna according to the embodiment of the present invention includes the fourth branch portion 214 on the low-frequency antenna branch portion 21. Referring to fig. 2 and 4, the ranges of the curves formed between the frequency points of the curves 1, 2 and 3 in fig. 2 and the ranges of the curves formed between the frequency points of the curves 1, 2 and 3 in fig. 4 are low-frequency bands formed by the two antennas, respectively, and the ranges of the curves formed between the frequency points of the curves 4, 5, 6, 7, 8 and 9 in fig. 2 and the ranges of the curves formed between the frequency points of the curves 4, 5, 6, 7, 8 and 9 in fig. 4 are high-frequency band curves formed by the two antennas, respectively. In fig. 2 and 4, the marking point (Marker) values of the frequency points 1 to 9 are the abscissa of the curve, and the abscissa ranges of the two curves are analyzed and compared, so that the bandwidth range of the antenna shown in fig. 2 is 824MHz to 2620MHz, and the bandwidth range of the antenna shown in fig. 4 is 824MHz to 3100MHz. The added fourth branch part 214 does not have great influence on the low-frequency range, so that the resonance performance of the antenna in the embodiment of the invention in the low-frequency range is ensured; in a high frequency band, compared with the return loss curve of the antenna shown in fig. 2, the return loss curve of the antenna shown in fig. 4 increases resonance, a high frequency bandwidth can cover 1710mhz to 3100mhz, and compared with the high frequency bandwidth of the antenna shown in fig. 2, the return loss curve of the antenna shown in fig. 2 covers 1710mhz to 2620mhz, the bandwidth of the antenna is effectively expanded, and the bandwidth requirement of 4G is met (the high frequency bandwidth range that a 4G terminal needs to cover is 1710mhz to 2170mhz, 2300mhz to 2400mhz, and 2500mhz to 2690mh), meanwhile, the return loss curve depth of the antenna shown in fig. 4 is in a range of about-10 dB on average, the return loss curve depth of the antenna shown in fig. 2 is about-5 dB on average, and the return loss curve depth of the antenna shown in fig. 4 is deepened, so that the overall radiation performance of the antenna is increased, and the communication requirement can be better met.
In this embodiment, the fourth branch portion 214 and the third branch portion 213 may be disposed in parallel, so as to obtain better high-frequency resonance performance. In addition, the length, the width and the distance between the third branch 213 and the fourth branch 214 can be adjusted according to different frequency bands covered by the antenna according to the embodiment of the invention, in order to obtain better resonance performance in a high frequency band, the distance between the third branch 213 and the fourth branch 214 is 0.5mm to 3mm, the length of the fourth branch 214 is 3mm to 15mm, the width of the fourth branch 214 is 0.5mm to 5mm, and the length of the third branch 213 is 2mm to 12mm.
According to the antenna provided by the embodiment of the invention, the fourth branch part is additionally arranged on the low-frequency antenna branch part, and tests show that the high-frequency resonance and the resonance depth of the antenna are increased by additionally arranging the fourth branch part on the low-frequency antenna branch part, compared with the antenna in the prior art, the bandwidth of the antenna provided by the embodiment of the invention can cover the range of 824MHz to 3100MHz, the high-frequency band can cover 1710MHz to 3100MHz, the 4G bandwidth requirement can be effectively met, the depth of an antenna echo loss curve is increased by 5dB on average, and the radiation performance of the antenna is enhanced.
The invention further provides a wireless communication device, which includes an antenna, wherein the antenna in the antenna embodiment of the invention is adopted as the antenna, and the specific structure of the antenna can be referred to the antenna embodiment of the invention and the record shown in fig. 3, which is not described herein again. In addition, the antenna may be disposed at different positions according to the specific structural form and the internal layout of the wireless communication device, for example: the antenna can be arranged on the shell, or on the bracket, or on the sound cavity of the wireless communication device, and the wireless communication device of the embodiment does not limit the specific assembling position of the antenna. The third branch part of the antenna and the part of the high-frequency antenna, which is opposite to the third branch part, are folded and attached to the end surface of the shell, and the rest part is attached to the inner surface of the shell.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An antenna, includes signal feed point, ground feed point, low frequency antenna branch portion, the first branch portion of high frequency antenna and high frequency antenna second branch portion, low frequency antenna branch portion includes first branch portion, second branch portion and third branch portion, an end connection of first branch portion is in on one end of second branch portion, first branch portion with second branch portion forms L type structure, another end connection of second branch portion is in on the third branch portion, second branch portion with third branch portion forms T type structure, the other end of first branch portion with the one end of the first branch portion of high frequency antenna is connected respectively on the high frequency antenna second branch portion, the other end of the first branch portion of high frequency antenna is unsettled, the first branch portion of high frequency antenna be located between first branch portion and the third branch portion, ground feed point connection be close to of high frequency antenna second branch portion first branch portion keeps away from the one end of first branch portion of high frequency antenna, the signal feed point is connected in the first branch portion of ground feed point is close to the one end of first branch portion, the high frequency antenna is connected with the second branch portion is unsettled, the high frequency antenna second branch portion is connected with the high frequency branch portion is parallel to the first branch portion, the other end of high frequency antenna extension portion is connected with the second branch portion.
2. The antenna of claim 1, wherein the distance between the fourth branch and the third branch is 0.5mm to 3mm.
3. The antenna according to claim 1, wherein the length of the fourth branch ranges from 3mm to 15mm, and the length of the third branch ranges from 2mm to 12mm.
4. The antenna of claim 1, wherein the width of the fourth branch is 0.5mm to 5mm.
5. The utility model provides a wireless communication equipment, includes the antenna, the antenna includes signal feed point, ground feed point, low frequency antenna branch portion, the first branch portion of high frequency antenna and high frequency antenna second branch portion, low frequency antenna branch portion includes first branch portion, second branch portion and third branch portion, an end connection of first branch portion is in on a tip of second branch portion, first branch portion with second branch portion forms L type structure, another end connection of second branch portion is in on the third branch portion, the second branch portion with third branch portion forms T type structure, the other end of first branch portion with the one end of the first branch portion of high frequency antenna is connected respectively on the high frequency antenna second branch portion, the other end of the first branch portion of high frequency antenna is unsettled, the first branch portion of high frequency antenna be located first branch portion with between the third branch portion, ground feed point connection be close to of high frequency antenna second branch portion keep away from the one end of the first branch portion of high frequency antenna, the signal feed point is connected the first branch portion of second branch portion is close to the second branch portion is parallel to the other end of high frequency antenna, the extension of second branch portion is connected with the second branch portion is unsettled to the one end of high frequency branch portion, the high frequency antenna is connected with the first branch portion is connected with the second branch portion on the branch portion.
6. The wireless communication device of claim 5, wherein the distance between the fourth branch and the third branch is 0.5mm to 3mm.
7. The wireless communication device of claim 5, wherein the length of the fourth branch is 3mm to 15mm, and the length of the third branch is 2mm to 12mm.
8. The wireless communication device as claimed in claim 5, wherein the width of the fourth branch is 0.5mm to 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073601.5A CN104900985B (en) | 2014-03-03 | 2014-03-03 | Antenna and wireless communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073601.5A CN104900985B (en) | 2014-03-03 | 2014-03-03 | Antenna and wireless communication equipment |
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| Publication Number | Publication Date |
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| CN104900985A CN104900985A (en) | 2015-09-09 |
| CN104900985B true CN104900985B (en) | 2022-10-21 |
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| CN201410073601.5A Active CN104900985B (en) | 2014-03-03 | 2014-03-03 | Antenna and wireless communication equipment |
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| CN110048215A (en) * | 2019-03-05 | 2019-07-23 | 惠州Tcl移动通信有限公司 | Antenna and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200611452A (en) * | 2004-09-17 | 2006-04-01 | Asustek Comp Inc | Telecommunication device and plane antenna thereof |
| CN201233962Y (en) * | 2008-07-08 | 2009-05-06 | 比亚迪股份有限公司 | Embedded mobile phone antenna |
| CN102709671A (en) * | 2012-01-04 | 2012-10-03 | 瑞声声学科技(深圳)有限公司 | Multiband antenna, wireless communicator and wireless communication system |
| CN203707319U (en) * | 2014-03-03 | 2014-07-09 | 青岛海信移动通信技术股份有限公司 | Antenna and antenna communication equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7965239B2 (en) * | 2009-06-25 | 2011-06-21 | Cheng Uei Precision Industry Co., Ltd. | Antenna structure |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200611452A (en) * | 2004-09-17 | 2006-04-01 | Asustek Comp Inc | Telecommunication device and plane antenna thereof |
| CN201233962Y (en) * | 2008-07-08 | 2009-05-06 | 比亚迪股份有限公司 | Embedded mobile phone antenna |
| CN102709671A (en) * | 2012-01-04 | 2012-10-03 | 瑞声声学科技(深圳)有限公司 | Multiband antenna, wireless communicator and wireless communication system |
| CN203707319U (en) * | 2014-03-03 | 2014-07-09 | 青岛海信移动通信技术股份有限公司 | Antenna and antenna communication equipment |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |
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