CN107394351B - All-metal shell mobile intelligent terminal antenna - Google Patents
All-metal shell mobile intelligent terminal antenna Download PDFInfo
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- CN107394351B CN107394351B CN201710545335.5A CN201710545335A CN107394351B CN 107394351 B CN107394351 B CN 107394351B CN 201710545335 A CN201710545335 A CN 201710545335A CN 107394351 B CN107394351 B CN 107394351B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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Abstract
The invention provides an all-metal shell mobile intelligent terminal antenna, and belongs to the technical field of antennas. The invention comprises the following steps: the system circuit board, the metal casing, antenna branch and feed point, there are clearance areas on the front, back of the system circuit board, the metal casing includes the back lid and the metal frame of week side connected with it, there are slots on the short metal frame close to clearance area to make the metal casing separate and form two independent parts, there are antenna branches in clearance area, one of the antennas is regarded as the drive unit and coupled the parasitic element of the metal casing between the second, slot of antenna branch, three formation loop antennas of antenna branch covers the low frequency band (824 MHz-960 MHz), high frequency band (1710 MHz-2690 MHz) together. The invention increases the frequency band coverage of the antenna, basically realizes the full metal coverage of the equipment while ensuring high performance, and improves the requirements of users on the metal texture and aesthetic feeling of the machine body.
Description
Technical Field
The invention belongs to the technical field of antennas, and particularly relates to an all-metal shell mobile intelligent terminal antenna.
Background
However, the metal housing often seriously affects the radiation performance of the terminal antenna, which is interfered by the metal housing, mainly the metal housing surrounds the terminal antenna to form an energy reflection with respect to the terminal antenna, thereby forming a relatively closed radiation area, causing the antenna to be coupled in a near field and not to radiate to a far field, which is effective in that the antenna system has a large Q value.
Disclosure of Invention
The invention aims to solve the technical problem that a metal shell and a terminal antenna mutually benefit and coexist, and therefore, the invention provides a mobile intelligent terminal antenna with an all-metal shell.
In order to achieve the purpose, the invention provides the following technical scheme:
the technical scheme 1:
an all metal casing's mobile intelligent terminal antenna includes: system circuit board, metal casing, antenna branch and feed point, its characterized in that: the front side and the back side of the system circuit board are provided with corresponding clearance areas and first metal areas; the metal shell comprises a metal frame and a rear cover, the rear cover is positioned under the back of the system circuit board and is arranged in an isolated mode, the rear cover comprises a non-metal area and a second metal area, and the shape and the size of the non-metal area are similar to those of the clearance area and are arranged correspondingly; the side surface of the system circuit board is provided with a metal frame which is in close contact with the system circuit board, and the metal frame is connected with the rear cover; two narrow slits are arranged on the short metal frame close to the clearance area to divide the metal shell into two mutually independent metal shells in sections; the rear cover, the metal frame connected with the rear cover and the first metal area on the back of the system circuit board are jointly used as a system ground;
an antenna branch is arranged in a clearance area on the back of the system circuit board and comprises an antenna branch I, an antenna branch II and an antenna branch III; wherein: the first antenna branch is connected with a feed point arranged in the metal area through a matching circuit, one ends of the second antenna branch and the third antenna branch are both connected with the metal shell between the two narrow slits to form a loop antenna, the other end of the third antenna branch is connected with a system ground, and the second antenna branch is coupled with a part of the first antenna branch.
Furthermore, in the technical scheme, the first antenna branch is a planar monopole antenna, and as a preferred embodiment, the planar monopole antenna is designed to be an L-type microstrip line or a T-type microstrip line.
Furthermore, the positions of the two narrow slits on the short metal frame close to the clearance area in the technical scheme can be moved.
Furthermore, the width of the gap between the two narrow slits is not less than 1 mm; the preferred value range is 1 mm-3 mm.
Furthermore, the coupling distance between the first antenna branch and the second antenna branch in the technical scheme can be adjusted according to the required working frequency.
Furthermore, the width of the non-metal area of the rear cover in the technical scheme is not less than 6 mm; the preferable value range is 6 mm-8 mm.
Further, in the technical scheme, the gap or the non-metal area of the narrow slit can be filled with a non-conductive material.
Preferably, the matching circuit in the technical scheme adopts a band-stop type matching circuit.
The technical scheme 2 is as follows:
an all metal casing's mobile intelligent terminal antenna includes: system circuit board, metal casing, antenna branch and feed point, its characterized in that: the front side and the back side of the system circuit board are respectively provided with a first clearance area, a second clearance area and a first metal area, wherein the first clearance area and the second clearance area are symmetrically arranged at two ends of the single side respectively, and the area between the two clearance areas is a first metal area; the metal shell comprises a metal frame and a rear cover, the rear cover is positioned under the back of the system circuit board and is arranged in an isolated mode, the rear cover comprises a first nonmetal area, a second nonmetal area and a second metal area, and the shape and the size of the first nonmetal area or the second nonmetal area are respectively close to the shape and the size of the first clearance area or the second clearance area and are arranged correspondingly; the side surface of the system circuit board is provided with a metal frame which is in close contact with the system circuit board, and the metal frame is connected with the rear cover; the metal short frame close to the first clearance area and the metal short frame close to the second clearance area are respectively provided with two narrow slits to divide the metal shell into three mutually independent metal shells; the rear cover, the metal frame connected with the rear cover and the first metal area on the back of the system circuit board are jointly used as a system ground;
the first clearance area and the second clearance area on the back of the system circuit board are respectively provided with antenna branches which are symmetrical about the center of the system circuit board, and each antenna branch comprises a first antenna branch, a second antenna branch and a third antenna branch which are arranged identically; wherein: the first antenna branch is connected with a feed point arranged in the metal area through a matching circuit, one ends of the second antenna branch and the third antenna branch are both connected with the metal shell between the two narrow slits to form a loop antenna, the other end of the third antenna branch is connected with a system ground, and the second antenna branch is coupled with a part of the first antenna branch.
Furthermore, in the technical scheme, the first antenna branch is a planar monopole antenna, and as a preferred embodiment, the planar monopole antenna is designed to be an L-type microstrip line or a T-type microstrip line.
Furthermore, the positions of the two narrow slits on the short metal frame close to the clearance area in the technical scheme can be moved.
Furthermore, the width of the gap between the two narrow slits is not less than 1 mm; the preferred value range is 1 mm-3 mm.
Furthermore, the coupling distance between the first antenna branch and the second antenna branch in the technical scheme can be adjusted according to the required working frequency.
Furthermore, the width of the non-metal area of the rear cover in the technical scheme is not less than 6 mm; the preferable value range is 6 mm-8 mm.
Further, in the technical scheme, the gap or the non-metal area of the narrow slit can be filled with a non-conductive material.
Preferably, the matching circuit in the technical scheme adopts a band-stop type matching circuit.
The technical scheme is that the opposite end of the antenna area is arranged in the technical scheme 1, the same technical means is adopted to form an antenna area, the antenna design in the two antenna areas is completely the same, one antenna is used as a main antenna, and the other antenna is used as an auxiliary antenna, so that the purpose of improving the antenna efficiency is achieved, and the defect of low working efficiency of a single antenna is overcome.
The principle of the invention is illustrated as follows:
the invention adopts the first antenna branch as a driving unit, radio-frequency signals are fed into the first antenna branch from a feed point through a matching circuit, the second antenna branch and the first antenna branch are subjected to energy coupling through a gap, the second antenna branch, the third antenna branch and a metal shell between two narrow slits are jointly used as a parasitic unit, the parasitic unit forms a loop antenna and the matching circuit to jointly cover a low-frequency band (824 MHz-960 MHz), and the first antenna branch is a resonant mode of a planar monopole antenna for exciting a high-frequency band and jointly covers the whole high-frequency band (1710 MHz-2690 MHz) with the whole parasitic unit.
The invention has the beneficial effects that:
the terminal antenna is applied to the mobile intelligent terminal equipment, so that the mobile intelligent terminal equipment can cover metal except for the rear cover part area and the two narrow slits of the metal frame (namely most areas of the lower surface, the side surface and the back surface of the display screen of the mobile intelligent terminal equipment), and the full metallization of the mobile intelligent terminal equipment is realized; the rear cover and the metal frame connected with the rear cover are connected with the metal area on the back of the system circuit board, the metal frame between the two narrow slits is used as a part of the antenna radiation unit, the influence of the metal shell on the radiation performance of the antenna is effectively reduced, multi-band bandwidth coverage is finally realized, 7 frequency bands are covered, wherein the low-frequency bandwidth can cover 824 MHz-960 MHz, and the high-frequency bandwidth can cover 1710 MHz-2690 MHz; furthermore, the terminal antenna can be used for designing a main antenna and an auxiliary antenna, so that the aim of improving the efficiency of the antenna is fulfilled, and the defect of low working efficiency of a single antenna is overcome; in addition, the narrow slit is arranged on the short metal frame, so that the influence on the performance of the antenna when a user holds the equipment by hand can be reduced.
Drawings
FIG. 1 is a schematic perspective view of an all-metal case mobile intelligent terminal antenna provided by the present invention;
FIG. 2 is a schematic side view of an all-metal case mobile smart terminal antenna according to the present invention;
fig. 3 is a schematic structural diagram of a metal housing of an all-metal housing mobile intelligent terminal antenna provided by the present invention, wherein a rear cover is shown in fig. (a), a metal frame is shown in fig. (b), and a first metal housing and a second metal housing are shown in fig. (c);
FIG. 4 is a schematic top view of a system circuit board and an antenna structure thereon in an all-metal case mobile intelligent terminal antenna according to the present invention;
FIG. 5 is a diagram of an embodiment of a matching circuit of an all-metal-case mobile intelligent terminal antenna according to the present invention;
FIG. 6 is a return loss curve of an all-metal case mobile intelligent terminal antenna provided by the present invention;
FIG. 7 is a graph of the efficiency and gain of an all metal case mobile intelligent terminal antenna according to the present invention;
FIG. 8 is a schematic structural diagram of a main antenna and an auxiliary antenna of an all-metal-casing mobile intelligent terminal provided by the invention;
FIG. 9 is a schematic side view of a primary and secondary antenna of a mobile intelligent terminal with an all-metal housing according to the present invention;
FIG. 10 is a schematic structural diagram of a metal housing of a main antenna and an auxiliary antenna of an all-metal-housing mobile intelligent terminal provided by the invention;
FIG. 11 is a return loss curve of a main antenna and an auxiliary antenna of an all-metal mobile intelligent terminal provided by the invention;
in the figure: 1 is a system circuit board, 101 is a clearance area, 101A is a clearance area A, and 101B is a clearance area B; 2 is a metal shell, 201 is a first metal shell, 202 is a second metal shell; 3 is an antenna branch, 301 is an antenna branch one, 302 is an antenna branch two, 303 is an antenna branch three, 301A is an antenna branch one, 301B is an antenna branch one, 302A is an antenna branch two, 302B is an antenna branch two, 303A is an antenna branch three, 303B is an antenna branch three; 4 is a matching circuit, C1To match the capacitance, L1Is a first matching inductance, L2A second matching inductor; 5 is a feeding point; 6 is a metal frame, 601 is a first narrow slit, and 602 is a second narrow slit; 7, a rear cover, 701, a first nonmetal area, 701A, a second nonmetal area and 702, wherein 701 is a nonmetal area; and 8 is a ground terminal.
Detailed Description
The main idea of the invention is that the all-metal shell of the mobile intelligent terminal is designed into two or three sections by arranging the narrow slit on the short metal frame, and the all-metal shell formed by the method can not generate adverse effect on the radiation performance of the mobile intelligent terminal.
To make the objects, technical solutions and advantages of the present invention clearer, the following detailed description of the principles and characteristics of the present invention is made with specific embodiments and with reference to the accompanying drawings.
Example 1:
the embodiment provides an all-metal-shell mobile intelligent terminal antenna, and the structural schematic diagram of the all-metal-shell mobile intelligent terminal antenna of the embodiment is shown in fig. 1 to fig. 4. The mobile intelligent terminal includes but is not limited to: a cell phone terminal, a smart watch, a portable computer or any similar suitable terminal device.
Fig. 1 is a schematic perspective view of an all-metal-casing mobile smart terminal antenna, fig. 2 is a schematic side view of the all-metal-casing mobile smart terminal antenna, and fig. 3 is a schematic structural view of a metal casing in the all-metal-casing mobile smart terminal antenna, and as can be seen from fig. 1 to 3, the all-metal-casing mobile smart terminal antenna includes: a system circuit board 1, a metal housing 2, an antenna branch 3, and a feed point 5;
it should be noted that: in the embodiment, the x direction of the paper surface is the length, the y direction is the width, and the z direction is the thickness; in the embodiment, the system circuit board 1 with the length of 140mm, the width of 70mm and the thickness of 0.8mm is adopted, and the clearance area 101 and the first metal area are correspondingly arranged on the front surface and the back surface of the system circuit board 1; the clearance area 101 is a narrow and long area, and the size of the clearance area 101 in this embodiment is as follows: the length is 6mm, and the width is 70 mm;
the metal shell 2 comprises a rear cover 7 and a peripheral side metal frame 6 connected with the rear cover, the rear cover 7 is located under the back of the system circuit board 1 and is arranged in an isolated manner, as shown in fig. 3(a), the rear cover 7 comprises a non-metal area 701 and a second metal area 702, the shape and the size of the non-metal area 701 are similar to those of the clearance area 101 and are arranged correspondingly, the length ranges of the non-metal area 701 and the clearance area 101 are both 6 mm-8 mm, and the implementation is preferably 6 mm; as shown in fig. 3(b), a metal frame 6 is disposed on a side surface of the system circuit board 1, and the metal frame 6 is connected to the rear cover 7;
two narrow slits 601 and 602 are arranged on the short metal frame close to the clearance area 101 to divide the metal shell 2 into a first metal shell 201 and a second metal shell 202 which are independent from each other, as shown in fig. 3 (c); further, each narrow slit may be filled with a non-metal material to block the conduction between the first metal housing 201 and the second metal housing 201; the narrow slits separate the metal shell into discontinuous regions, and the second metal shell 202 located between the two narrow slits 601 and 602 after separation is connected as a radiator of the antenna to realize the function of the antenna, so that the adverse effect of the metal shell on the antenna signal is avoided, and the performance of the antenna is further improved; the size of the narrow slits 601, 602 can be set according to specific situations, and is not limited here, and the width of the two narrow slits 601, 602 is preferably 1mm in the present embodiment; in addition, the length of the second metal shell 202 (corresponding to the distance between the two slits) is 48 mm; as can be known from the general knowledge in the art, the length of the second metal shell 202 is adjusted according to the operating frequency, and can be specifically adjusted according to the actual requirement;
fig. 4 is a schematic top view of a system circuit board of an all-metal-case mobile intelligent terminal antenna, and as can be seen from fig. 1, an antenna branch 3 is disposed in a clearance area 101 on the back surface of the system circuit board 1, and the antenna branch 3 includes an antenna branch one 301, an antenna branch two 302 and an antenna branch three 303;
the first antenna branch 301 is specifically an L-type microstrip line as a driving unit and is connected with a feeding point 5 arranged in a metal area through a matching circuit 4, so that a radio frequency signal is fed into the first antenna branch from the feeding point 5 through the matching circuit, the second antenna branch 302 and the L-type microstrip line are subjected to energy coupling through gaps between the two antenna branches, the coupling distance between the two antenna branches can be adjusted according to the required working frequency, meanwhile, one ends of the second antenna branch 302 and the third antenna branch 303 are both connected with a second metal shell 202 to form a loop antenna as a parasitic unit, the rear cover 7 and a metal frame 6 connected with the rear cover are jointly used as a system ground together with the first metal area on the back of the system circuit board 1, a grounding point 8 is arranged at a position, close to a clearance area, of the first metal area on the back of the system circuit board 1, and the other end of the third.
Specifically, this embodiment provides a schematic structural diagram of the matching circuit 4, and as shown in fig. 5, the matching circuit 4 specifically includes a first matching capacitor C1First matching inductor L1And a second matching inductance L2Wherein the first matching capacitor C1And the first matching inductor L1Connected in series and then connected with a second matching inductor L2And (4) connecting in parallel. One end a of the matching circuit 4 is connected to the feeding point 5. The matching circuit 4 is used for adjusting the antennaImpedance matching of the line branches enables the line branches to better receive radio frequency signals and broaden low-frequency impedance bandwidth, so that different user frequency bands can be adjusted, and requirements of multi-band communication are met;
as shown in fig. 6, the embodiment provides a return loss curve of the antenna structure, and as shown in fig. 7, the embodiment provides an efficiency and a gain curve of the antenna structure, and as can be seen from the figure, the antenna provided by the present invention achieves the advantages of multiple frequencies and wide frequency bands and can cover the frequency bands required by communication.
In this example, except for the non-metal area 701 of the rear cover 7 and the two narrow slits 601 and 602 on the metal frame 6, the surfaces of the devices, in other words, most areas of the side and the back of the mobile intelligent terminal device and the area without the display screen on the surface are covered with metal, so that the all-metal covering of the devices is basically realized, and the requirements of users on the metal texture and the aesthetic feeling of the body are improved; in addition, the second metal shell 202 is used as a part of the antenna radiation unit, so that the influence of the metal shell on the antenna radiation performance is effectively reduced, and the antenna is miniaturized.
Example 2:
the embodiment provides an all-metal-casing mobile intelligent terminal antenna, and the structural schematic diagram of the all-metal-casing mobile intelligent terminal antenna of the embodiment is shown in fig. 8 to fig. 10. The mobile intelligent terminal includes but is not limited to: a cell phone terminal, a smart watch, a portable computer or any similar suitable terminal device.
An all metal casing's mobile intelligent terminal antenna includes: system circuit board 1, metal casing 2, antenna branch 3 and feed point 5, its characterized in that: a first clearance area 101A, a second clearance area 101B and a first metal area are respectively arranged on the front surface and the back surface of the system circuit board 3, wherein the first clearance area 101A and the second clearance area 101B are respectively arranged symmetrically at two ends on a single surface, and the area between the two clearance areas 101A and 101B is the first metal area; the metal shell 2 comprises a metal frame 6 and a rear cover 7, the rear cover 7 is located under the back of the system circuit board 1 and is isolated from the back, the rear cover 7 comprises a first nonmetal area 701A, a second nonmetal area 701B and a second metal area 702, and the shape and the size of the first nonmetal area 701A or the second nonmetal area 701B are respectively close to and correspondingly arranged with the shape and the size of the first clearance area 101A or the second clearance area 101B; the side surface of the system circuit board 1 is provided with a metal frame 6 which is in close contact with the system circuit board, and the metal frame 6 is connected with a rear cover 7; two narrow slits are respectively arranged on the short metal frame close to the first clearance area 101A and the short metal frame close to the second clearance area 101B to divide the metal shell 2 into three metal shells which are independent from each other; the rear cover 7, the metal frame 6 connected with the rear cover and a first metal area on the back of the system circuit board 1 are jointly used as a system ground;
Fig. 11 shows the return loss curves of the main and auxiliary antenna structures under the idea of the present invention, and the results show that the performance of the main and auxiliary antenna can also satisfy the characteristics of multiple frequencies and wide frequency bands.
The foregoing detailed description is to be construed as illustrative only and not limiting, and, although preferred embodiments of the invention have been set forth, other changes and modifications to the described embodiments will occur to those skilled in the art once they learn of the basic inventive concepts. The scope of the claims of the present invention should therefore be construed to cover the preferred embodiments and all variations and modifications that fall within the scope of the present invention.
Claims (10)
1. A mobile smart terminal antenna, comprising: system circuit board (1), metal casing (2), antenna branch (3) and feed point (5), its characterized in that: the front side and the back side of the system circuit board (1) are provided with a corresponding clearance area (101) and a first metal area; the metal shell (2) comprises a metal frame (6) and a rear cover (7), the rear cover (7) is located under the back of the system circuit board (1) and is arranged in an isolated mode, the rear cover (7) comprises a non-metal area (701) and a second metal area (702), and the shape and the size of the non-metal area (701) are close to those of the clearance area (101) and are arranged correspondingly; a metal frame (6) which is in close contact with the system circuit board (1) is arranged on the side surface of the system circuit board, and the metal frame (6) is connected with a rear cover (7); two narrow slits (601, 602) are arranged on the short metal frame close to the clearance area (101) to divide the metal shell (2) into two metal shells which are independent from each other; the rear cover (7) and the metal frame (6) connected with the rear cover and a first metal area on the back of the system circuit board (1) are jointly used as a system ground;
an antenna branch (3) is arranged in a clearance area (101) on the back of the system circuit board (1), and the antenna branch (3) comprises an antenna branch I (301), an antenna branch II (302) and an antenna branch III (303); wherein: the first antenna branch (301) is used as a driving unit and is connected with a feeding point (5) arranged in a metal area through a matching circuit (4), the second antenna branch (302) is partially coupled with the first antenna branch (301), one ends of the second antenna branch (302) and the third antenna branch (303) are connected with a metal shell between two narrow slits (601 and 602) to form a loop antenna which is used as a parasitic unit together, and the other end of the third antenna branch (303) is connected with the system ground; the parasitic unit and the matching circuit (4) jointly cover a low-frequency band, and the driving unit excites the resonance mode of the high-frequency band to jointly cover the high-frequency band with the parasitic unit.
2. A mobile intelligent terminal antenna according to claim 1, characterized in that the antenna branch one (301) is a planar monopole antenna.
3. A mobile intelligent terminal antenna according to claim 2, wherein the planar monopole antenna is an L type microstrip line or a T-type microstrip line.
4. The mobile intelligent terminal antenna according to claim 1, wherein the width of the two narrow slits (601, 602) is 1mm to 3 mm.
5. A mobile intelligent terminal antenna according to claim 1, characterized in that the slot or non-metallic area (701) of the slot is filled with non-conductive material.
6. A mobile intelligent terminal antenna according to claim 1, characterized in that the width of the non-metallic area (701) of the rear cover (7) is 6mm to 8 mm.
7. A mobile smart terminal antenna, comprising: system circuit board (1), metal casing (2), antenna branch (3) and feed point (5), its characterized in that: the front side and the back side of the system circuit board (1) are respectively provided with a first clearance area (101A), a second clearance area (101B) and a first metal area, wherein the first clearance area (101A) and the second clearance area (101B) are respectively and symmetrically arranged at two ends on the single side, and the area between the two clearance areas (101A, 101B) is the first metal area; the metal shell (2) comprises a metal frame (6) and a rear cover (7), the rear cover (7) is located under the back of the system circuit board (1) and is arranged in an isolated mode, the rear cover (7) comprises a first nonmetal area (701A), a second nonmetal area (701B) and a second metal area (702), and the shape and the size of the first nonmetal area (701A) or the second nonmetal area (701B) are close to the clearance and the size of the first nonmetal area (101A) or the second nonmetal area (101B) respectively and are arranged correspondingly; a metal frame (6) which is in close contact with the system circuit board (1) is arranged on the side surface of the system circuit board, and the metal frame (6) is connected with a rear cover (7); two narrow slits are respectively arranged on the short metal frame close to the first clearance area (101A) and the short metal frame close to the second clearance area (101B) to divide the metal shell (2) into three metal shells which are independent of each other; the rear cover (7) and the metal frame (6) connected with the rear cover and a first metal area on the back of the system circuit board (1) are jointly used as a system ground;
antenna branches (3) which are symmetrical relative to the center of a system circuit board (1) are respectively arranged in a first clearance area (101A) and a second clearance area (101B) on the back of the system circuit board (1), each antenna branch (3) comprises a first antenna branch (301), a second antenna branch (302) and a third antenna branch (303) which are arranged identically, wherein the first antenna branch (301) is an L-type microstrip line and is used as a driving unit and is connected with a feeding point (5) arranged in a metal area through a matching circuit (4), the second antenna branch (302) is partially coupled with the first antenna branch (301), one ends of the second antenna branch (302) and the third antenna branch (303) are connected with a metal shell between two narrow slits (601 and 602) to form a loop antenna and are used as a parasitic unit, the other end of the third antenna branch (303) is connected with a system ground, the parasitic unit and the matching circuit (4) are used for covering a low-frequency band, and a resonant mode of the driving unit and the parasitic unit are used for covering a high-frequency band.
8. A mobile intelligent terminal antenna according to claim 7, characterized in that the antenna branch one (301) is a planar monopole antenna.
9. The mobile intelligent terminal antenna according to claim 8, wherein the planar monopole antenna is an L type microstrip line or a T-type microstrip line.
10. The mobile intelligent terminal antenna according to claim 7, wherein the width of the two narrow slits (601, 602) is 1mm to 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545335.5A CN107394351B (en) | 2017-07-06 | 2017-07-06 | All-metal shell mobile intelligent terminal antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545335.5A CN107394351B (en) | 2017-07-06 | 2017-07-06 | All-metal shell mobile intelligent terminal antenna |
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| CN107394351A CN107394351A (en) | 2017-11-24 |
| CN107394351B true CN107394351B (en) | 2020-07-10 |
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| CN112886244A (en) * | 2019-11-29 | 2021-06-01 | RealMe重庆移动通信有限公司 | Wearable electronic equipment |
| CN112886213B (en) * | 2019-11-29 | 2023-02-28 | RealMe重庆移动通信有限公司 | Wearable electronic equipment |
| CN110911838B (en) * | 2019-11-29 | 2022-04-26 | 维沃移动通信有限公司 | Electronic equipment |
| CN112164868B (en) * | 2020-09-23 | 2023-04-07 | RealMe重庆移动通信有限公司 | Antenna module and terminal |
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| CN104064866B (en) * | 2014-05-26 | 2018-08-17 | 普尔思（苏州）无线通讯产品有限公司 | Applied to the antenna structure of mobile phole simultaneously with becket and all-metal rear shell |
| CN204271242U (en) * | 2014-12-29 | 2015-04-15 | 上海安费诺永亿通讯电子有限公司 | A kind of adjustable antenna for all-metal construction communication terminal device |
| CN105006647B (en) * | 2015-08-04 | 2016-07-06 | 常熟市泓博通讯技术股份有限公司 | Compound 4G wireloop antenna |
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| US8072389B2 (en) * | 2009-06-11 | 2011-12-06 | Pao-Sui Chang | Integrated multi-band antenna module |
| US8754822B1 (en) * | 2010-08-17 | 2014-06-17 | Amazon Technologies, Inc. | Tuning elements for specific absorption rate reduction |
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