CN204966677U - Mobile terminal and mobile terminal antenna structure - Google Patents
Mobile terminal and mobile terminal antenna structure Download PDFInfo
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- CN204966677U CN204966677U CN201520664434.1U CN201520664434U CN204966677U CN 204966677 U CN204966677 U CN 204966677U CN 201520664434 U CN201520664434 U CN 201520664434U CN 204966677 U CN204966677 U CN 204966677U
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Abstract
The utility model provides a mobile terminal and mobile terminal antenna structure, mobile terminal antenna structure include the antenna body, the antenna body includes distributing point, ground point, the long branch of first feed and the long branch of first ground connection, distributing point, the unsettled setting of the other end are connected to the long ramose one end of first feed, the unsettled setting of the long branch's one end of first ground connection, the long branch of long branch of first feed and first ground connection sets up from top to bottom. In the space that the antenna body constitutes, the nearly 960MHz that the long branch of first feed generated and the nearly 700MHz stack of the long branch of first ground connection formation realize expanding to 700 -960MHz with the bandwidth of low frequency, it is further, realized 7mm's little headroom, the demand that satisfies ultra -thin terminal equipment that can be better, simultaneously, its simple structure, it is convenient to assemble, debug, possesses quicker transmission rate and geng gao's transmission quality, and support LTE that can be fine is technological.
Description
Technical field
The utility model relates to field of antenna, specifically a kind of mobile terminal and mobile terminal antenna structure.
Background technology
Along with the fast development of wireless communication technology, LTE (LongTermEvolution) technology is arisen at the historic moment, and the transmission quality of its transmission rate and Geng Gao faster makes increasing terminal equipment start to support LTE.But LTE technology is low frequency 699MHz-960MHz, high frequency 1710MHz-2700MHz to the requirement of the beamwidth of antenna.And the bandwidth of the main flow that communicates at present is 824MHz-960MHz, 1710MHz-2700MHz, therefore antenna technology is also faced with huge challenge.More and more frivolous along with mobile terminal, make the design space of antenna also more and more less, the Antenna Design of little empty regions low trestle becomes main flow already, and its design difficulty also increases greatly.So-called empty regions is the size on the antenna area not cloth ground of mobile terminal, when Antenna Design, all needs to leave empty regions, otherwise will affect the signal of the reception antenna of mobile terminal isotropic directivity.
Application number is the patent application document of 201210572892.3, discloses a kind of low profile mobile terminal antenna, and its antenna body comprises the first antenna body and the second antenna body; First antenna body comprise connect successively feed branch, the first long branch, the second short branch, the 3rd long branch and the first ground connection branch; Second antenna body comprises the second ground connection branch and the 4th branch; The antenna of this patent is Loop form, need to be operated in a distributing point returns on place (the ground connection branch 206 namely in accompanying drawing 1 must be connected with feed branch 207) with one simultaneously, be operated in 1/2 wavelength, its antenna length is the twice of Monopole antenna length, take up room larger, the low frequency region of its bandwidth and high-frequency region also will be affected based on antenna length, be difficult to reach requirement.
Therefore, be necessary to provide a kind of a kind of mobile terminal that can solve the problem and mobile terminal antenna structure.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of mobile terminal and mobile terminal antenna structure, realizes the expansion of Monopole shape antenna low frequency bandwidth.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of mobile terminal antenna structure, comprise antenna body, described antenna body comprises distributing point, earth point, the first long branch of feed and the long branch of the first ground connection; One end of the described first long branch of feed connects distributing point, the unsettled setting of the other end; The unsettled setting in one end of described first ground connection long branch; The described first long branch of feed and the long branch of the first ground connection setting up and down.
Another technical scheme that the utility model adopts:
A kind of mobile terminal, comprises the mobile terminal antenna structure in technique scheme.
The beneficial effects of the utility model are: the mobile terminal antenna structure empty regions being different from prior art is large, and take up room large, low frequency bandwidth is difficult to the deficiency met the demands.The utility model provides a kind of Monopole form mobile terminal antenna structure, setting up and down with the first long branch of ground connection of being extended by earth point by the first long branch of feed of being extended by distributing point, in the space that antenna body is formed, the nearly 960MHz that the described first long branch of feed generates superposes with the nearly 700MHz that the first long branch of ground connection generates, and realizes the bandwidth expansion of low frequency to 700-960MHz; Further, also by adjusting the length of the first long branch of feed and the long branch of the first ground connection to realize tuning low-frequency impedance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Loop form antenna of prior art;
Fig. 2 is the structural representation of a kind of mobile terminal antenna structure of the utility model;
Fig. 3 is the structural representation of a kind of mobile terminal antenna structure of the utility model one embodiment;
Fig. 4 is the mobile terminal antenna structural representation of the utility model with U-shaped double-layer scaffold;
Fig. 5 is the end view structure chart of the utility model with the mobile terminal antenna structure of U-shaped double-layer scaffold;
Fig. 6 is the clearance schematic diagram of a kind of mobile terminal antenna structure of the utility model;
Fig. 7 is a kind of mobile terminal antenna structure of the utility model antenna clawback lossy data figure in actual debug process;
Fig. 8 is the efficiency data schematic diagram of a kind of mobile terminal antenna of the utility model structure in actual debug process.
Label declaration:
1, pcb board; 2, antenna body; 3, distributing point; 4, earth point; 5, the first long branch of feed;
6, the first long branch of ground connection; 7, the second short branch of feed; 8, the 3rd long branch of feed;
9, U-shaped double-layer scaffold; 10, the second short branch of ground connection; 206, ground connection branch; 207, feed branch.
Embodiment
By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with execution mode.
The design of the utility model most critical is: setting up and down with the first long branch of ground connection of being extended by earth point by the first long branch of feed of being extended by distributing point, in the space that antenna body is formed, the nearly 960MHz that the described first long branch of feed generates superposes with the nearly 700MHz that the first long branch of ground connection generates, and realizes the bandwidth expansion of low frequency to 700-960MHz.
Please refer to Fig. 2, the utility model provides a kind of mobile terminal antenna structure, comprises antenna body 2, and described antenna body 2 comprises distributing point 3, the long branch of earth point 4, first feed 5 and the long branch 6 of the first ground connection; One end of the described first long branch 5 of feed connects distributing point 3, the unsettled setting of the other end; The unsettled setting in one end of the described first long branch of ground connection 6; The described first long branch of feed 5 and the first ground connection long branch 6 setting up and down.Further, described antenna body 2 is connected with pcb board 1 with earth point 4 by distributing point 3, the described first long branch of feed 5 and the described first long branch of ground connection 6 substantially parallel with described pcb board 1 edge; The described first long branch 5 of feed is in same level, the top being arranged on the described first long branch 5 of feed of the free end spacing distance of the described first long branch of ground connection 6 substantially with a surface of pcb board 1.
Seen from the above description, the described first long branch 5 of feed is arranged on same level with pcb board 1, creates first low-frequency resonant; The described first long branch of ground connection 6 keeps at a certain distance away and is arranged on the top of the first long branch 5 of feed, creates second low-frequency resonant, and first low-frequency resonant that can generate with the first long branch 5 of feed fully superposes, and expands the bandwidth of low frequency.
Refer to Fig. 3, further, described antenna body 2 also comprises the second short branch of feed 7 and the long branch 8 of the 3rd feed; One end of the described second short branch of feed 7 connects the described first long branch 5 of feed, the unsettled setting of the other end; One end of the described 3rd long branch of feed 8 connects described distributing point 3, and the other end is near the described first long branch 6 of ground connection.
Seen from the above description, described antenna body 2 generates first high-frequency resonant of nearly 1.71GHz by the 3rd long branch of feed 8, second high-frequency resonant of nearly 2.5GHz is generated, the third high resonance frequently of the nearly 2GHz that doubly occured frequently by the first long branch of ground connection 6 by the described second short branch of feed 7; The high frequency bandwidth of 1710-2700MHz is jointly formed, to realize the high frequency requirements of LTE technology to the beamwidth of antenna by the described 3rd long branch 6 of ground connection of the short branch of feed 7, first of the long branch of feed 8, second.
Further, the described first long branch 5 of feed is L-type, and the galianconism of described L-type connects described distributing point 3; The described second vertical described L-type of the short branch of feed 7 long-armed, and extended to pcb board 1 direction.
Further, the described first long branch 5 of feed is L-type, and the galianconism of described L-type connects described distributing point 3, the galianconism of the described second vertical described L-type of the short branch of feed 7.
Seen from the above description, described second feed end branch can be vertical with the long-armed or galianconism of the long branch of L-type first feed 5, when nowadays antenna body 2 design space is more and more less, its vibrational power flow still can generate the second enough high high-frequency resonant, fully meets the bandwidth Design requirement of antenna holder.
Refer to Fig. 4 and Fig. 5, further, also comprise U-shaped double-layer scaffold 9, described U-shaped double-layer scaffold 9 opening is towards described pcb board 1, and the bottom of support is connected with pcb board 1; Described antenna body 2 laminating is arranged on the inwall of described U-shaped double-layer scaffold 9;
Described distributing point 3, the long branch of earth point 4, first feed 5 and the short branch of the second feed 7 are arranged on the bottom of described U-shaped double-layer scaffold 9; The described first long branch of ground connection 6 and the 3rd long branch of feed 8 are arranged on the top layer of described U-shaped double-layer scaffold 9.
Seen from the above description, mobile terminal antenna structure of the present utility model, also be provided with the U-shaped double-layer scaffold 9 of being sidelong, described antenna body 2 laminating is arranged on the inwall of described U-shaped double-layer scaffold 9, and described antenna body 2 only make use of top layer part and the floor portions of U-shaped double-layer scaffold 9, structure is simple, and assembling easily, while the demand meeting ultra-thin terminal equipment, low frequency bandwidth can be expanded again.Further, the U-type groove of described U-shaped double-layer scaffold 9 is 5-7mm deeply; The bottom of described U-shaped double-layer scaffold 9 and top layer spacing are 4-5mm.
Seen from the above description, the U-type groove of described U-shaped double-layer scaffold 9 is 5-7mm deeply, and bottom and top layer spacing are 4-5mm, and the clearance of antenna holder is reduced, solve the problem of Antenna Design difficulty under little space, more meet the requirement that current portable equipment is frivolous.
Further, also comprise the second short branch 10 of ground connection, one end of the described second short branch of ground connection 10 connects described earth point 4, and the other end connects the described first long branch 6 of ground connection.
Further, the described second short branch of ground connection 10 is the U-shaped structure of opening towards described distributing point 3 opposite side; The described first long branch 6 of ground connection is L-type, and the galianconism of described L-type is connected with the described second short branch 10 of ground connection.
Seen from the above description, the long branch of parasitism first ground connection 6 that earth point 4 described in antenna body 2 of the present utility model extends creates second low-frequency resonant of nearly 700MHz, and the third high of the nearly 2GHz that doubly occurs frequently resonance frequently, and the described second short branch of ground connection 10 is set to the U-shaped structure of opening towards distributing point 3 opposite side, not only reduce taking up room of branch, make the structure of antenna body 2 compacter, and the bandwidth demand of antenna can be met again simultaneously.
The utility model also provides a kind of mobile terminal comprising above-mentioned mobile terminal antenna structure.
Embodiment one
Refer to Fig. 2, a kind of mobile terminal antenna structure is provided, be applicable to mobile phone, flat board or other mobile terminal devices, described mobile terminal comprises a housing, be provided with a pcb board 1 in housing, above described pcb board 1, be provided with a headroom district, in described headroom district, be provided with antenna body 2; Described antenna body 2 comprises distributing point 3, the long branch of ground connection of earth point 4, first feed long branch 5, first 6 and the short branch 10 of the second ground connection; Described antenna body 2 is connected with the feed port of pcb board 1 by distributing point 3, is connected by the ground plate of earth point 4 with pcb board 1.
Outwards to be extended out the first long branch 5 of feed described in long narrow L-type by described distributing point 3, a surface of the described first long branch 5 of feed and pcb board 1 is generally within same plane, the unsettled setting of the other end of the described first long branch of feed 5, and extend to earth point 4 direction.Described in figure, the second ground connection branches into U-shaped, optionally, it also can be linear pattern, shaped form, L-type etc., its one end connects described earth point 4, the other end connects a galianconism end of the long branch 6 of L-type first ground connection, the unsettled setting of long arm end of the described first long branch of ground connection 6, and extend to distributing point 3 direction.Described second ground connection branch and the long branch of the first feed 5 substantially in the same plane, described 6, the first long branch of ground connection and above-mentioned plane orthogonal are arranged, that is, the free end of the first long branch of ground connection 6 and the free end of the long branch of the first feed 5 setting up and down, both are not on a horizontal plane.
Distance described in antenna structure between the second short branch of ground connection 10 and described pcb board 1 determines the empty regions size of antenna, and the larger then empty regions of distance is larger, and excessive empty regions cannot meet the structural allocation demand of nowadays thin-client equipment.Therefore, in the utility model, the distance between the described second short branch 10 of ground connection and pcb board 1 is at 5-7mm, i.e. distance between the U-shaped sidewall of the second short branch of ground connection 10 is 5-7mm; Preferred 7mm.Preferably, described in described L-type, the galianconism length of the first long branch 5 of feed is 37mm; Long-armed length is 47mm; The long-armed length of the long branch of described L-type first ground connection 6 is 94mm.
Antenna body is of a size of 220mm*150mm*1mm, and base material is FR4 (δ=0.024, ε=4.3), surperficial attached copper; The utility model is Monopole form antenna, and it is operated on a distributing point 3, and length is only 1/2nd of Loop antenna length, and its each antenna element is operated in 1/4 wavelength of the resonance that it produces.Concrete, the second low-frequency resonant two the resonant mode superpositions of the nearly 700MHz that first low-frequency resonant of the nearly 960MHz created by the first feed long branch 5 and the first ground connection long branch 6 are created, have been extended to 699-960MHz by low band; Realize the expansion of low frequency bandwidth; Further, as shown in Figure 7, the distance between the U-shaped sidewall of the described second short branch of ground connection 10 is the setting of 7mm, achieves the little empty regions of antenna structure 7mm, makes it more meet the frivolous requirement of current portable equipment.
Embodiment two
Please refer to Fig. 3, embodiment two of the present utility model further increases described antenna body 2 second feed section branch and the long branch 8 of the 3rd feed on the basis of embodiment one.Long-armed or the galianconism of the described second long branch of vertical described L-type first feed of the short branch of feed 75 is arranged, and one end is unsettled; The described 3rd long branch 8 of feed is connected to form by the first right angle L-type subbranch and the second right angle L-type subbranch; One end of first right angle L-type subbranch connects distributing point 3, right angle arm and pcb board 1 edge conjunction, and described first right angle L-type subbranch and the described second short branch 10 of ground connection are in same plane; The galianconism of described second right angle L-type subbranch connects the first right angle L-type subbranch, long-armed unsettled setting, and extends to earth point 4 direction, near one end that the first long branch of ground connection 6 is unsettled.
The second low-frequency resonant two resonant modes of the nearly 700MHz that first low-frequency resonant of the nearly 960MHz that the present embodiment creates in the first feed long branch 5 and the first ground connection long branch 6 create superpose, and realize low band and expand on the basis of 699-960MHz; Again by first high-frequency resonant of the nearly 1.71GHz of the second feed long branch establishment; second high-frequency resonant of the nearly 2.5GHz that the first short branch of feed creates; and first the 3rd high-frequency resonant three resonant modes of ground connection long branch 6 frequency multiplication nearly 2GHz out obtain the high band of 1710-2690MHz; achieve full range bandwidth, fully can meet the band requirement of LTE technology to beamwidth of antenna 2G-4G.
Embodiment three
Please refer to Fig. 4 and Fig. 5, the basis of embodiment two adds a U-shaped double-layer scaffold 9.Described U-shaped double-layer scaffold 9 is sidelong in the side of pcb board 1, and opening is towards described pcb board 1, is connected with pcb board 1 by the bottom of support; Described antenna body 2 laminating is arranged on the inwall of described U-shaped double-layer scaffold 9;
Concrete, the first right angle L-type subbranch laminating of described distributing point 3, the short branch of earth point 4, second ground connection 10 and the 3rd long branch of feed 8 is arranged on the bottom of described U-shaped double-layer scaffold 9; The described first long branch of feed 5 and the short branch of the second feed 7 are arranged on the bottom of U-shaped double-layer scaffold 9 equally, but arrange with non-laminating of bottom, the described first long branch 5 of feed is by distributing point 3, arrange obliquely at an angle with the bottom of U-shaped double-layer scaffold 9, same and the bracket bottom interlayer of the described second short branch 7 of feed at a certain distance, to keep one end of the second short branch of feed 7 can be unsettled;
The laminating that the galianconism of the long branch of described L-type first ground connection 6 is connected with the described second short branch of ground connection 10 is arranged on the bottom land of U-shaped double-layer scaffold 9, its long-armed laminating extended to described distributing point 3 direction is arranged on the top layer of U-shaped double-layer scaffold 9, near one end that the described 3rd long branch of feed 8 is unsettled.
Further, refer to Fig. 6, the U-type groove of the described U-shaped double-layer scaffold 9 of described antenna structure is 7mm deeply; The bottom of described U-shaped double-layer scaffold 9 and top layer spacing are 5mm; Described U-shaped double-layer scaffold 9 is double face copper, the second low-frequency resonant two the resonant mode superpositions of the nearly 700MHz that first low-frequency resonant of the nearly 960MHz created by the first feed long branch 5 and the first ground connection long branch 6 are created, have been extended to 699-960MHz by low band; First high-frequency resonant of the nearly 1.71GHz created by the second long branch of feed, second high-frequency resonant of the nearly 2.5GHz that the first short branch of feed creates, and first the 3rd high-frequency resonant three resonant modes of ground connection long branch 6 frequency multiplication nearly 2GHz out obtain the high band of 1710-2690MHz, achieve full range bandwidth, meet the band requirement of LTE technology to beamwidth of antenna 2G-4G; Further, the U-type groove of described U-shaped double-layer scaffold 9 is the setting of 7mm deeply, achieves the little empty regions of antenna structure 7mm, makes it more meet the frivolous requirement of current portable equipment; Further, as shown in Figure 7, the antenna structure of the present embodiment is in actual debug process, and antenna return loss all meets the design requirement being less than-5dB; As shown in Figure 8, for described antenna structure efficiency data in actual use moves towards figure, as can be seen here, the antenna structure of the present embodiment in actual use, can be good at meeting the bandwidth requirement of mobile terminal to antenna, and possess the transmission quality of efficiency of transmission and Geng Gao fast; Finally, described antenna structure relies on its U-shaped supporting structure, makes routing region only make use of top layer and the bottom of support, and frame mode is simple, debugging and easy to assembly.
Embodiment four
Embodiment four of the present utility model relates to a kind of mobile terminal, such as there is the mobile phone, flat board, MP3 etc. of frivolous portable requirement, described mobile terminal comprises a housing, comprises a pcb board 1 in housing, and the headroom district above described pcb board 1 is provided with the antenna structure described in aforementioned any embodiment.
In sum, a kind of mobile terminal antenna structure that the utility model provides, is different from prior art empty regions large, and take up room large, low frequency bandwidth is difficult to the deficiency met the demands.The utility model provides a kind of Monopole form mobile terminal antenna structure, setting up and down with the first ground connection long branch 6 of being extended by earth point 4 by the first long branch of feed 5 of being extended by distributing point 3, in the space that antenna body 2 is formed, the nearly 960MHz that described first feed long branch 5 generates superposes with the nearly 700MHz that the first long branch of ground connection 6 generates, and realizes the bandwidth expansion of low frequency to 700-960MHz; Further, achieve the little headroom of 7mm, the demand of ultra-thin terminal equipment can be better met; Meanwhile, its structure is simple, assembles, debugs convenient, possess the transmission quality of transmission rate and Geng Gao faster, can be good at supporting LTE technology.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model specification and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a mobile terminal antenna structure, comprises antenna body, it is characterized in that, described antenna body comprises distributing point, earth point, the first long branch of feed and the long branch of the first ground connection; One end of the described first long branch of feed connects distributing point, the unsettled setting of the other end; The unsettled setting in one end of described first ground connection long branch; The described first long branch of feed and the long branch of the first ground connection setting up and down.
2. a kind of mobile terminal antenna structure as claimed in claim 1, it is characterized in that, described antenna body is connected with pcb board with earth point by distributing point, a surface of the described first long branch of feed and pcb board is in same level substantially, the top being arranged on the described first long branch of feed of the free end spacing distance of the described first long branch of ground connection.
3. a kind of mobile terminal antenna structure as claimed in claim 1, is characterized in that, described antenna body also comprises the second short branch of feed and the 3rd long branch of feed; One end of the described second short branch of feed connects the described first long branch of feed, the unsettled setting of the other end; One end of the described 3rd long branch of feed connects described distributing point, and the other end is near the described first long branch of ground connection.
4. a kind of mobile terminal antenna structure as claimed in claim 3, is characterized in that, described first feed is long branches into L-type, and the galianconism of described L-type connects described distributing point; The described second vertical described L-type of the short branch of feed long-armed, and extended to pcb board direction.
5. a kind of mobile terminal antenna structure as claimed in claim 3, is characterized in that, described first feed is long branches into L-type, and the galianconism of described L-type connects described distributing point, the galianconism of the described second vertical described L-type of the short branch of feed.
6. a kind of mobile terminal antenna structure as claimed in claim 3, is characterized in that, also comprise U-shaped double-layer scaffold, and described U-shaped double-layer scaffold opening is towards described pcb board, and the bottom of support is connected with pcb board; Described antenna body laminating is arranged on the inwall of described U-shaped double-layer scaffold;
Described distributing point, earth point, the first long branch of feed and the short branch of the second feed are arranged on the bottom of described U-shaped double-layer scaffold; The described first long branch of ground connection and the 3rd long branch of feed are arranged on the top layer of described U-shaped double-layer scaffold.
7. a kind of mobile terminal antenna structure as claimed in claim 6, is characterized in that, the U-type groove of described U-shaped double-layer scaffold is 5-7mm deeply; The bottom of described U-shaped double-layer scaffold and top layer spacing are 4-5mm.
8. a kind of mobile terminal antenna structure as claimed in claim 1, is characterized in that, also comprises the second short branch of ground connection, and one end of the described second short branch of ground connection connects described earth point, and the other end connects the described first long branch of ground connection.
9. a kind of mobile terminal antenna structure as claimed in claim 8, is characterized in that, described second ground connection is short branches into the U-shaped structure of opening towards described distributing point opposite side; Described first ground connection is long branches into L-type, and the galianconism of described L-type is connected with the described second short branch of ground connection.
10. a mobile terminal, comprises the mobile terminal antenna structure described in any one of claim 1-9.
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| CN201520664434.1U CN204966677U (en) | 2015-08-28 | 2015-08-28 | Mobile terminal and mobile terminal antenna structure |
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| CN201520664434.1U CN204966677U (en) | 2015-08-28 | 2015-08-28 | Mobile terminal and mobile terminal antenna structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098334A (en) * | 2015-08-28 | 2015-11-25 | 深圳市信维通信股份有限公司 | Mobile terminal and mobile terminal antenna structure |
| CN111213284A (en) * | 2017-10-12 | 2020-05-29 | 泰连公司 | Antenna device |
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2015
- 2015-08-28 CN CN201520664434.1U patent/CN204966677U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098334A (en) * | 2015-08-28 | 2015-11-25 | 深圳市信维通信股份有限公司 | Mobile terminal and mobile terminal antenna structure |
| CN111213284A (en) * | 2017-10-12 | 2020-05-29 | 泰连公司 | Antenna device |
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