CN102025022B - Mobile electronic equipment - Google Patents
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- CN102025022B CN102025022B CN 200910092945 CN200910092945A CN102025022B CN 102025022 B CN102025022 B CN 102025022B CN 200910092945 CN200910092945 CN 200910092945 CN 200910092945 A CN200910092945 A CN 200910092945A CN 102025022 B CN102025022 B CN 102025022B
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Abstract
The embodiment of the invention provides mobile electronic equipment. The mobile electronic equipment comprises a shell, a slot antenna and a communication module, wherein the shell at least comprises a first part made of a metal material; the slot antenna is carved on the first part, is used for signal radiation, and comprises a first resonance branch and a second resonance branch; the first resonance branch is provided with a feeding point; the second resonance branch is connected with the first resonance branch by the feeding point and performs impedance matching by coupling with the firstresonance branch so as to acquire a first resonance point and a second resonance point which are used for broadening the bandwidth of the antenna; and the communication module is connected with the slot antenna by the feeding point and is used for providing the signal. In the embodiment of the invention, the bandwidth can be broadened on the slot antenna arranged on a metal part of the shell by amultipoint resonance method, and the antenna can be miniaturized by a compact design at the same time so as to meet the requirement of the mobile electronic equipment on dual-frequency communication in a wireless local area network.
Description
Technical field
The present invention relates to the antenna of mancarried electronic aid, particularly relate to a kind of mobile electronic device that slot antenna is set on full metal jacket.
Background technology
The full metal jacket notebook is the target that a lot of notebook manufacturer is pursued all the time.Present metal shell notebook all is to adopt two-part construction, it is the part employing metal material beyond the antenna area, the zone of the antenna that is used for radio communication is installed then adopts plastic material, such scheme is processed complex not only, the cost costliness, and be not easy to ID (industry) design, influence overall appearance.
The irrealizable most important reason of full metal jacket notebook is: the antenna that is used for radio communication can't radiated electromagnetic wave in the metallic shield body.Certainly, the mode by external antenna can realize full metal jacket, but its convenience, durability, globality and aesthetic property all do not reach the requirement of notebook manufacturer far away.
Therefore, in the process that realizes technical solution of the present invention, find that there is following defective at least in prior art.
Existing full metal jacket solution 1: adopting length on metallic plate is the wall scroll slit of λ/2, realizes the 2.4G aerial radiation.
The shortcoming of this scheme is: (1) volume is big, and this motion adopts a slit to realize the 2.4G antenna, requires length to satisfy λ/2, is unfavorable for the realization of MIMO antenna; (2) one-segment can only realize the 2.4G single frequency band, can not be applied to 802.11a.
Existing full metal jacket solution 2: on metallic plate, adopt two slits, realize 2.42G, 5.25G antenna.
The shortcoming of this scheme is: (1) bandwidth is very narrow, does not satisfy the requirement of WLAN antenna; (2) volume is big, and still adopting length is the slit design of λ/2, is unfavorable for the realization of MIMO antenna;
Existing solution 3: the slot antenna that adopts microstrip-fed mode;
The shortcoming of this scheme is: this slot antenna is to etch away the part copper layer on the copper layer as the slit covering of dielectric-slab one side, opposite side at dielectric-slab etches microstrip feed line excitation slit, this scheme need increase dielectric-slab, and the housing in the antenna outside still needs to change into non-metallic material.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of mobile electronic device, its slot antenna that is arranged on the outer cover metal part adopts the method for multiple spot resonance can increase bandwidth, its shrunk type design simultaneously can realize antenna miniaturization, satisfies the demand of mobile electronic device WLAN (wireless local area network) double frequency communication.
To achieve these goals, on the one hand, provide a kind of mobile electronic device, having comprised:
Shell, described shell comprises first at least, described first is a metal material;
Slot antenna is engraved in described first, is used for signal radiation, and wherein, described slot antenna comprises:
First resonance props up, and the described first resonance brace has a feedback point;
Second resonance props up, and props up with described first resonance by described feedback point to be connected, and carries out impedance matching by propping up to be coupled with described first resonance, obtains first resonance point and second resonance point, and described first resonance point and described second resonance point are used for the broadening beamwidth of antenna;
Communication module is connected with described slot antenna by described feedback point, is used to provide described signal.
Preferably, in the above-mentioned mobile electronic device, described slot antenna comprises that also the 3rd resonance props up, and connects described feedback point, be used to obtain can the broadening beamwidth of antenna the 3rd resonance point.
Preferably, in the above-mentioned mobile electronic device, described first resonance point and described second resonance point are the resonance point in 2.4～2.5GHz frequency range, it is 1/2nd of described first resonance point and described second resonance point institute corresponding wavelength length that described first resonance props up the length of propping up with described second resonance, and at predetermined scope bias internal.
Preferably, in the above-mentioned mobile electronic device, described the 3rd resonance brace has the width gradual change section, carry out impedance matching by described width gradual change section and obtain described the 3rd resonance point, described the 3rd resonance point is the resonance point in 5.15～5.85GHz frequency range, the length that described the 3rd resonance props up is 1/2nd of described the 3rd resonance point institute corresponding wavelength length, and at predetermined scope bias internal.
Preferably, in the above-mentioned mobile electronic device, the no occlusion area that partly or entirely is arranged on described first of described slot antenna.
Preferably, in the above-mentioned mobile electronic device, described mobile electronic device is a notebook computer, and described slot antenna is engraved in described first by the mode of punching press, laser cutting or milling.
Preferably, in the above-mentioned mobile electronic device, described first resonance props up and comprises: first resonance that is linked in sequence props up that second portion props up in first, first resonance, first resonance props up third part and first resonance props up the 4th part;
Wherein, extend to the right, form the first that described first resonance props up from the beginning of feedback point; The tail end that props up first from described first resonance begins to extend upward, and forms described first resonance and props up second portion; Begin to extend left from the tail end of the described first resonance second portion, form described first resonance and prop up third part; The tail end that props up third part from described first resonance begins downward extension, forms described first resonance and props up the 4th part;
Described second resonance props up and comprises: second resonance that is linked in sequence props up first, second resonance and props up second portion, second resonance and prop up third part, second resonance and prop up the 4th part, second resonance and prop up the 5th part, second resonance and prop up the 6th part, second resonance and prop up the 7th part, second resonance and prop up that the 8th part, second resonance are propped up Session 9, second resonance props up the tenth part;
Wherein, extend to the right, form the first that described second resonance props up from the beginning of feedback point; The tail end that props up first from described second resonance begins to extend upward, and forms described second resonance and props up second portion; The tail end that props up second portion from described second resonance begins to extend left, forms described second resonance and props up third part; The tail end that props up third part from described second resonance begins downward extension, forms described second resonance and props up the 4th part; Prop up tetrameric tail end from described second resonance and begin to extend left, form described second resonance and prop up the 5th part; The tail end that props up the 5th part from described second resonance begins to extend upward, and forms described second resonance and props up the 6th part; The tail end that props up the 6th part from described second resonance begins to extend left, forms described second resonance and props up the 7th part; The tail end that props up the 7th part from described second resonance begins downward extension, forms described second resonance and props up the 8th part; The tail end that props up the 8th part from described second resonance begins to extend left, forms described second resonance and props up Session 9; The tail end that props up Session 9 from described second resonance begins to extend upward, and forms described second resonance and props up the tenth part;
Described the 3rd resonance props up and comprises: the 3rd resonance that is linked in sequence props up first, the 3rd resonance props up second portion and the 3rd resonance props up third part;
Wherein, extend left, form the first that described the 3rd resonance props up from the beginning of feedback point; The tail end that props up first from described the 3rd resonance begins to extend upward, and forms described the 3rd resonance and props up second portion; The tail end that props up second portion from described the 3rd resonance begins to extend to the right, forms described the 3rd resonance and props up third part.
Preferably, in the above-mentioned mobile electronic device, described slot antenna is two, and directional diagram superposes in the same way.
Preferably, in the above-mentioned mobile electronic device, described slot antenna has an antenna kink, and described antenna bending part along last, forms three-dimensional three-dimensional structure antenna in the bending edge of described shell.
Preferably, in the above-mentioned mobile electronic device, be filled with electron opaque material in the slit of described slot antenna, described first resonance props up, described second resonance props up and described the 3rd resonance props up and all has knuckle in the bending place.
There is following technique effect at least in the embodiment of the invention:
1) slot antenna that is arranged on the full metal jacket adopts the method for multiple spot resonance can increase bandwidth, can satisfy the demand of WLAN (wireless local area network) double frequency communication; Utilize the width gradual change section to carry out impedance matching, bend by design gap width and antenna and to reduce antenna size, realize the miniaturization of antenna, make pocket diary also can dispose a plurality of antennas, can adopt the MIMO communication pattern, realize 802.11a/b/g/n communication;
2) antenna directly undercuts on notebook computer shell, the realization full metal jacket notion of real meaning on product realizes the single type metal shell, to have removed the otch that shell does in order fixing up an aerial wire from and to have handled the manufacturing procedure that drawn game portion changes plastic casing, save cost, reduce process complexity; Also save the buying expenses of antenna, got rid of the error that fixes up an aerial wire and produce owing to manual;
3) prop up bending by resonance and reduce the area of plane, be folded into shell side formation stereoscopic three-dimensional antenna by antenna and further realized the design of antenna small size, save the space, help appearance looks elegant;
4) integral antenna of engraving has been simplified the ID design (as original antenna fixed leg etc.) of notebook inside; The filling color material can combine together with the ID design, and slot antenna is played a protective role.
Description of drawings
The plane graph of the compact double frequency slit antenna that Fig. 1 provides for the embodiment of the invention;
The structure chart of the notebook computer that Fig. 2 provides for the embodiment of the invention;
The schematic diagram of the coaxial feed slot antenna that Fig. 3 provides for the embodiment of the invention;
The three-dimensional compact double frequency slit antenna stereogram that Fig. 4 provides for the embodiment of the invention;
Slot antenna return loss (dB) figure that Fig. 5 provides for the embodiment of the invention;
MIMO slot antenna isolation (dB) figure that Fig. 6 provides for the embodiment of the invention;
The plane compact type double frequency slit antenna plane graph that Fig. 7 provides for the embodiment of the invention;
The full metal jacket notebook plane double antenna schematic diagram that Fig. 8 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, specific embodiment is described in detail below in conjunction with accompanying drawing.
The embodiment of the invention provides a kind of mobile electronic device, comprising:
Shell, described shell comprises first at least, described first is a metal material;
Slot antenna is engraved in described first, is used for signal radiation, and wherein, described slot antenna comprises: first resonance props up, and the described first resonance brace has a feedback point; Second resonance props up, prop up with described first resonance by described feedback point and to be connected, carry out impedance matching by propping up to be coupled with described first resonance, (resonance point is the Frequency point in the frequency band to obtain first resonance point, be not physical entity) and second resonance point, described first resonance point and described second resonance point are used for the broadening beamwidth of antenna;
Communication module is connected with described slot antenna by described feedback point, is used to provide described signal.
Wherein, described slot antenna can also comprise that the 3rd resonance props up, and connects described feedback point, and described the 3rd resonance brace has the width gradual change section, carry out impedance matching by described width gradual change section and obtain the 3rd resonance point, described the 3rd resonance point is the resonance point in 5.15～5.85GHz frequency range.
As seen, the embodiment of the invention adopts multiple spot resonance by the slot antenna that is arranged on the full metal jacket, can increase bandwidth, can satisfy the demand of WLAN (wireless local area network) double frequency communication; Utilize the width gradual change section to carry out impedance matching, bend by design gap width and antenna and reduce antenna size, realize the miniaturization of antenna, make pocket diary also can dispose a plurality of antennas, can adopt the MIMO communication pattern, realize 802.11a/b/g/n communication
Wherein, slot antenna is the antenna that is made of the slit on the metal covering.The narrow slit of opening on desirable conducting plate is the dual form of dipole antenna, so the length of slot antenna is identical with dipole, is λ/2.Slot antenna can be used the asymmetric feed of coaxial line, the outer conductor of coaxial line is connected on the metallic plate, inner wire is connected across the another side of seam, as shown in Figure 3, open the slit on limited big conducting surface, the influence of necessary CONSIDERING EDGE diffraction, therefore, the design slot antenna will be in conjunction with the applied environment associative simulation of reality on notebook computer shell.
Described first resonance props up and comprises: first resonance that is linked in sequence props up that second portion props up in first, first resonance, first resonance props up third part and first resonance props up the 4th part;
Wherein, extend to the right, form the first that described first resonance props up from the beginning of feedback point; The tail end that props up first from described first resonance begins to extend upward, and forms described first resonance and props up second portion; Begin to extend left from the tail end of the described first resonance second portion, form described first resonance and prop up third part; The tail end that props up third part from described first resonance begins downward extension, forms described first resonance and props up the 4th part;
Described second resonance props up and comprises: second resonance that is linked in sequence props up first, second resonance and props up second portion, second resonance and prop up third part, second resonance and prop up the 4th part, second resonance and prop up the 5th part, second resonance and prop up the 6th part, second resonance and prop up the 7th part, second resonance and prop up that the 8th part, second resonance are propped up Session 9, second resonance props up the tenth part;
Wherein, extend to the right, form the first that described second resonance props up from the beginning of feedback point; The tail end that props up first from described second resonance begins to extend upward, and forms described second resonance and props up second portion; The tail end that props up second portion from described second resonance begins to extend left, forms described second resonance and props up third part; The tail end that props up third part from described second resonance begins downward extension, forms described second resonance and props up the 4th part; Prop up tetrameric tail end from described second resonance and begin to extend left, form described second resonance and prop up the 5th part; The tail end that props up the 5th part from described second resonance begins to extend upward, and forms described second resonance and props up the 6th part; The tail end that props up the 6th part from described second resonance begins to extend left, forms described second resonance and props up the 7th part; The tail end that props up the 7th part from described second resonance begins downward extension, forms described second resonance and props up the 8th part; The tail end that props up the 8th part from described second resonance begins to extend left, forms described second resonance and props up Session 9; The tail end that props up Session 9 from described second resonance begins to extend upward, and forms described second resonance and props up the tenth part;
Described the 3rd resonance props up and comprises: the 3rd resonance that is linked in sequence props up first, the 3rd resonance props up second portion and the 3rd resonance props up third part;
Wherein, extend left, form the first that described the 3rd resonance props up from the beginning of feedback point; The tail end that props up first from described the 3rd resonance begins to extend upward, and forms described the 3rd resonance and props up second portion; The tail end that props up second portion from described the 3rd resonance begins to extend to the right, forms described the 3rd resonance and props up third part.
Wherein, " making progress " and " downwards " is meant vertical direction, and " left " and " to the right " is meant horizontal direction, but the angular deviation in all allowing to exist among a small circle.
The structure chart of the slot antenna of the mobile electronic device that Fig. 1 provides for the embodiment of the invention, as shown in the figure, slot antenna is engraved on metal shell 100, described slot antenna comprises: first resonance props up (resonance that is linked in sequence in the corresponding diagram props up the each several part section of propping up L0+L11+L12+L13+L14), as seen, first resonance props up from the feedback point, the L0 level is extended to the right, the L11 level is extended to the right, L12 extends vertically upward, and the L13 level is extended left, and L14 extends vertically downward, the end of L14 and L11 are positioned on the same horizontal line, thereby first resonance props up and surrounds a semiclosed zone with opening.Second resonance props up (resonance that is linked in sequence in the corresponding diagram props up the each several part section of propping up L0+L21+L22+L23+L24+L25+L26+L27+L28+L29), as seen, described second resonance props up from the feedback point, the L0 level is extended to the right, L21 extends vertically upward, the L22 level is extended left, L23 extends vertically downward, and the L24 level is extended left, and L25 extends vertically upward, the L26 level is extended left, L27 extends vertically downward, and the L28 level is extended left, and L29 extends vertically upward, wherein L26, L22 are positioned at same horizontal line, and L28, L24 and L11 are positioned on the same horizontal line.Therefore, second resonance props up and is positioned at first resonance and props up within the semiclosed zone that is surrounded.Described second resonance props up by propping up to be coupled with described first resonance and carries out impedance matching, obtains first resonance point and second resonance point.
In addition, described slot antenna can also comprise: the 3rd resonance props up (resonance that is linked in sequence in the corresponding diagram props up the each several part section of propping up L31+L32+L33), as seen, described the 3rd resonance props up from the feedback point, the L31 level is extended left, and L32 extends vertically upward, and the L33 level is extended to the right.The 3rd resonance props up and is positioned at the space that L21, L22, L23 enclose.Described the 3rd resonance brace has width gradual change section L31, and described the 3rd resonance props up by described width gradual change section and carries out impedance matching, obtains the 3rd resonance point; The starting point that described first resonance props up, described second resonance props up and described the 3rd resonance props up is the same position point, and described same position point is an antenna feed point;
As from the foregoing, first resonance props up by bending and reduces antenna size, has determined the part peripheral boundary of antenna simultaneously; Second resonance props up and is positioned at first resonance and props up institute's region, and is repeatedly circuitous by end, realizes Len req, is that the 3rd resonance props up headspace simultaneously; The 3rd resonance props up and is positioned at second resonance and props up institute's region, constitutes the antenna part peripheral boundary simultaneously.
In addition, embodiment of the invention antenna is directly to engrave out on shell, and shell can be that the part metals shell also can be a full metal jacket.When shell is full metal jacket, just truly realizing the full metal jacket notion of product, it is fix up an aerial wire the otch treatment process done and the manufacturing procedure of local replacing plastic casing that single type metal shell has as a whole been removed shell from, saves cost, reduces process complexity; Also save the buying expenses of antenna, got rid of the error that fixes up an aerial wire and produce owing to manual.
In Fig. 1, first resonance props up with the second resonance Zhi Changdu approximate, is about 1/2nd of first resonance point and described second resonance point institute corresponding wavelength length, and can has certain skew, and skew is in the predetermined scope, and for example skew is no more than 5%.First resonance props up and second resonance props up near the resonance point that is used to obtain (can also can further be loosened between 2.3～2.7GHz) two 2.4GHz between 2.4～2.5GHz.The frequency bandwidth of antenna is generally the bandwidth of return loss value smaller or equal to-10dB correspondence, and is close when two resonance points, makes the lower sideband of the upper sideband of low frequency and high frequency points during with downcrossings, can realize band spread at-10dB.The 3rd resonance Zhi Changdu is about λ 55G/2, and can have certain skew, and skew is in the predetermined scope, and for example skew is no more than 5%.The 3rd resonance props up and is used to obtain 5.15～5.85GHz resonance.L31 section slit utilizes the transition line principle that it is broadened gradually, thereby regulates this section resistance value, realizes impedance matching.So-called impedance matching is to make microwave circuit or system's areflexia, carry the row ripple or as far as possible near the technical measures of traveling-wave mode.In the present invention, the reflection minimum of antenna can form resonance during impedance matching.
The mobile electronic device of the embodiment of the invention can be the electronic equipment of notebook computer, personal digital assistant PDA or other small-sized full metal jackets, below mainly is that example describes with the notebook computer.
The present invention proposes to engrave out the given shape slit on the notebook metal shell, by coaxial line cross-over connection feed, realizes aerial radiation.Usually the notebook computer shell structure is taken the pad pasting of display screen off or is removed display screen frame on every side as shown in Figure 2, can see the relative position of display screen and notebook A shell.Display screen is less than shell sizes, and the shell zone that is not shown the screen covering generally is that width is the rectangular of 8～10mm, and this regional the place ahead is generally plastic frame or plastics pad pasting, and the rear is the notebook computer shell material.At present the antenna on the notebook promptly is installed in and above-mentionedly is not shown the screen occlusion area, if the metal shell notebook, the metal shell in the antenna installation site need cut away and change plastic material into, to guarantee aerial radiation.The full metal jacket notebook that the embodiment of the invention proposes is on the housing of metal shell, engraves the slit, and the slit can all be positioned at no occlusion area, also can partly be positioned at no occlusion area, and coaxial cable feed is adopted in the slit, forms slot antenna.Display screen blocks or partly be not subjected to display screen does not block this antenna owing to being subjected to, and can realize the bi-directional electromagnetic wave radiation.Wherein, to the small part antenna be positioned at no occlusion area be because, the whole slits of antenna are positioned at no occlusion area can realize radiation, the part slit is positioned at no occlusion area still can realize radiation, just radiation effect can be poor slightly, if but all the slit is positioned at occlusion area, signal causes energy emission not gone out just by metallic shield so.So, require to be positioned at no occlusion area to the small part slit.And bidirectional radiation, if a side in slit is blocked by metal exactly, energy only can be to the other direction radiation so, the signal of the direction that is blocked can only lean on multiple scattering to receive, if one-way radiation can only receive the signal of a side.Bidirectional radiation then is the signal that can receive both sides simultaneously, guarantees communication efficiency.
The present invention also propose a kind of three-dimensional structure, compact, broadband, double frequency slit antenna, so-called three-dimensional structure, be meant that antenna slots engraves on different planes, the no occlusion area of this Antenna Design above notebook computer shell, utilized the area of shell dual-side, obtain the slot antenna of three-dimensional structure, reduced the antenna area occupied.Fig. 1 Fig. 4 is respectively the plane graph and the 3 dimensional drawing of compact double frequency slit antenna.With reference to figure 4, the part of antenna is folded on the side of housing and forms stereochemical structure, and in the lump with reference to Fig. 1, the right side of bending place dotted line comprises line segment L11, L12, L21, comprises that also the part of L13 all has been folded into the side of housing.The stereochemical structure of this antenna has effectively reduced the length of antenna, and helps obtaining radiance preferably, and the ID design to three-dimensional simultaneously has certain help.As seen, the embodiment of the invention is propped up bending by resonance and is reduced the area of plane, is folded into shell side formation stereoscopic three-dimensional antenna by antenna and has further realized the design of antenna small size, saves the space, helps appearance looks elegant; And the integral antenna of engraving has been simplified the ID design (as original antenna fixed leg etc.) of notebook inside; The filling color material can combine together with the ID design, and slot antenna is played a protective role.
Above-mentioned slot antenna and MIMO antenna all design in the notebook electromagnetic environment, and its structure can directly apply to the full metal jacket notebook.Fig. 5, Fig. 6 are the S parameter curve of slot antenna, and Fig. 5 is the return loss of single slot antenna in the notebook environment, it the S11 of 2.4～2.5GHZ and 5.15～5.85GHz＜-10dB.Fig. 6 is the isolation of two slot antennas in the MIMO antenna, as can be seen from the figure, its isolation all-below the 40dB.
Except the above-mentioned three-dimensional structure slot antenna of mentioning, antenna on the metal shell also can have various deformation, adds top stereochemical structure, plane as no occlusion area planar structure, plane and adds side and add that limit stereochemical structure and part-structure are at antenna structure of occlusion area etc.Fig. 7 is a kind of slot antenna schematic diagram of planar structure, and it and above-mentioned three-dimensional structure slot antenna method for designing are similar, and in addition, turning and the terminal chamfered that adopts in the slit have reduced the wedge angle reflection to a certain extent, are convenient to industrial processes simultaneously.Regulate by impedance matching, planar slot antenna also can reach the requirement of WLAN Antenna Design, because the arc corner has reduced the wedge angle reflection, more helps improving the radiance in slit, and makes outward appearance have more aesthetic effect.
Slot antenna of the present invention can design two or more on metal shell, thereby realizes the MIMO antenna.Fig. 8 is a full metal jacket notebook plane double antenna schematic diagram.Through checking, have good isolation between the double antenna of the present invention, satisfy the requirement of WLAN MIMO antenna.The miniaturization slot antenna that the present invention proposes can be designed as the common antenna of Wimax and WLAN, and communication module is Wimax and WLAN module; Or the WWAN antenna, communication module is the WWAN module; Or the WLAN antenna, communication module is the WLAN module;
The present invention also proposes a kind of scheme of filling electron opaque material with the compressive property of enhancing slot antenna in slot antenna, this electron opaque material can be polymer such as plastic cement, it can be painted arbitrarily according to the design needs of ID, make combining together of its nature, increase aesthetic appearance with the notebook exterior design.The electron opaque material of filling is little to the performance impact of slot antenna, can adjust slightly according to the specific performance of material.Fill method can adopt modes such as inserts mode or nanometer Shooting Technique to realize.
The shape of above-mentioned slot antenna can be utilized above-mentioned method for designing under the prerequisite that guarantees antenna performance, make amendment according to special appearance requirement.Slot antenna also can be realized the antenna function of other communication patterns by adjusting size, position and shape.The above-mentioned MIMO antenna of mentioning can be two, three or more.
As from the foregoing, the present invention proposes a kind of miniaturization, double frequency, slot antenna, and it is directly engraved on the full metal jacket of notebook computer, utilizes the slot antenna principle to realize electromagenetic wave radiation.This antenna adopts the method for multiple spot resonance, in conjunction with the special electromagnetic environment design of notebook computer shell, effectively improved the intrinsic narrow-band characteristic of slot antenna, make it satisfy the demand of wireless lan (wlan) double frequency communication, simultaneously by design gap width and bending, realize antenna miniaturization, make pocket diary also can adopt the MIMO communication pattern, realize 802.11a/b/g/n communication.The full metal jacket antenna solution that the present invention proposes is a design of Simulation in the true electromagnetic environment of notebook, can directly apply to the notebook product.In the slit that notebook computer shell is engraved, can adopt electron opaque material to fill, cooperate the ID design, make the notebook outward appearance have more aesthetic feeling, increase the shell reliability simultaneously.
Therefore, the embodiment of the invention has following advantage:
1) slot antenna that is arranged on the full metal jacket adopts the method for multiple spot resonance can increase bandwidth, can satisfy the demand of WLAN (wireless local area network) double frequency communication; Utilize the width gradual change section to carry out impedance matching, bend by design gap width and antenna and to reduce antenna size, realize the miniaturization of antenna, make pocket diary also can dispose a plurality of antennas, can adopt the MIMO communication pattern, realize 802.11a/b/g/n communication;
2) antenna directly undercuts on notebook computer shell, the realization full metal jacket notion of real meaning on product realizes the single type metal shell, to have removed the otch that shell does in order fixing up an aerial wire from and to have handled the manufacturing procedure that drawn game portion changes plastic casing, save cost, reduce process complexity; Also save the buying expenses of antenna, got rid of the error that fixes up an aerial wire and produce owing to manual;
3) prop up bending by resonance and reduce the area of plane, be folded into shell side formation stereoscopic three-dimensional antenna by antenna and further realized the design of antenna small size, save the space, help appearance looks elegant;
4) integral antenna of engraving has been simplified the ID design (as original antenna fixed leg etc.) of notebook inside; The filling color material can combine together with the ID design, and slot antenna is played a protective role.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a mobile electronic device is characterized in that, comprising:
Shell, described shell comprises first at least, described first is a metal material;
Slot antenna is engraved in described first, is used for signal radiation, and wherein, described slot antenna comprises:
First resonance props up, and the described first resonance brace has a feedback point;
Second resonance props up, and props up with described first resonance by described feedback point to be connected, and carries out impedance matching by propping up to be coupled with described first resonance, obtains first resonance point and second resonance point, and described first resonance point and described second resonance point are used for the broadening beamwidth of antenna;
Communication module is connected with described slot antenna by described feedback point, is used to provide described signal, and described slot antenna comprises that also the 3rd resonance props up, and connects described feedback point, be used to obtain can the broadening beamwidth of antenna the 3rd resonance point.
2. mobile electronic device according to claim 1, it is characterized in that, described first resonance point and described second resonance point are the resonance point in 2.4～2.5GHz frequency range, it is 1/2nd of described first resonance point and described second resonance point institute corresponding wavelength length that described first resonance props up the length of propping up with described second resonance, and at predetermined scope bias internal.
3. mobile electronic device according to claim 1 is characterized in that,
Described the 3rd resonance brace has the width gradual change section, carry out impedance matching by described width gradual change section and obtain described the 3rd resonance point, described the 3rd resonance point is the resonance point in 5.15～5.85GHz frequency range, the length that described the 3rd resonance props up is 1/2nd of described the 3rd resonance point institute corresponding wavelength length, and at predetermined scope bias internal.
4. according to any described mobile electronic device in the claim 1 to 3, it is characterized in that,
The no occlusion area that partly or entirely is arranged on described first of described slot antenna.
5. mobile electronic device according to claim 4 is characterized in that, described mobile electronic device is a notebook computer, and described slot antenna is engraved in described first by the mode of punching press, laser cutting or milling.
6. mobile electronic device according to claim 4 is characterized in that, described first resonance props up and comprises: first resonance that is linked in sequence props up that second portion props up in first, first resonance, first resonance props up third part and first resonance props up the 4th part;
Wherein, extend to the right, form the first that described first resonance props up from the beginning of feedback point; The tail end that props up first from described first resonance begins to extend upward, and forms described first resonance and props up second portion; Begin to extend left from the tail end of the described first resonance second portion, form described first resonance and prop up third part; The tail end that props up third part from described first resonance begins downward extension, forms described first resonance and props up the 4th part;
Described second resonance props up and comprises: second resonance that is linked in sequence props up first, second resonance and props up second portion, second resonance and prop up third part, second resonance and prop up the 4th part, second resonance and prop up the 5th part, second resonance and prop up the 6th part, second resonance and prop up the 7th part, second resonance and prop up that the 8th part, second resonance are propped up Session 9, second resonance props up the tenth part;
Wherein, extend to the right, form the first that described second resonance props up from the beginning of feedback point; The tail end that props up first from described second resonance begins to extend upward, and forms described second resonance and props up second portion; The tail end that props up second portion from described second resonance begins to extend left, forms described second resonance and props up third part; The tail end that props up third part from described second resonance begins downward extension, forms described second resonance and props up the 4th part; Prop up tetrameric tail end from described second resonance and begin to extend left, form described second resonance and prop up the 5th part; The tail end that props up the 5th part from described second resonance begins to extend upward, and forms described second resonance and props up the 6th part; The tail end that props up the 6th part from described second resonance begins to extend left, forms described second resonance and props up the 7th part; The tail end that props up the 7th part from described second resonance begins downward extension, forms described second resonance and props up the 8th part; The tail end that props up the 8th part from described second resonance begins to extend left, forms described second resonance and props up Session 9; The tail end that props up Session 9 from described second resonance begins to extend upward, and forms described second resonance and props up the tenth part;
Described the 3rd resonance props up and comprises: the 3rd resonance that is linked in sequence props up first, the 3rd resonance props up second portion and the 3rd resonance props up third part;
Wherein, extend left, form the first that described the 3rd resonance props up from the beginning of feedback point; The tail end that props up first from described the 3rd resonance begins to extend upward, and forms described the 3rd resonance and props up second portion; The tail end that props up second portion from described the 3rd resonance begins to extend to the right, forms described the 3rd resonance and props up third part.
7. mobile electronic device according to claim 4 is characterized in that, described slot antenna is two, and directional diagram superposes in the same way.
8. mobile electronic device according to claim 4 is characterized in that, described slot antenna has an antenna kink, and described antenna bending part along last, forms three-dimensional three-dimensional structure antenna in the bending edge of described shell.
9. mobile electronic device according to claim 4 is characterized in that, is filled with electron opaque material in the slit of described slot antenna, and described first resonance props up, described second resonance props up and described the 3rd resonance props up and all has knuckle in the bending place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910092945 CN102025022B (en) | 2009-09-11 | 2009-09-11 | Mobile electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910092945 CN102025022B (en) | 2009-09-11 | 2009-09-11 | Mobile electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102025022A CN102025022A (en) | 2011-04-20 |
| CN102025022B true CN102025022B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910092945 Active CN102025022B (en) | 2009-09-11 | 2009-09-11 | Mobile electronic equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531911B (en) * | 2012-07-24 | 2017-08-25 | 努比亚技术有限公司 | A kind of slot antenna and metal-back mobile phone |
| US9905909B2 (en) * | 2015-09-29 | 2018-02-27 | Chiun Mai Communication Systems, Inc. | Antenna module and wireless communication device using same |
| CN111129768B (en) | 2016-11-17 | 2022-01-11 | 华为技术有限公司 | Communication terminal |
| CN111129741A (en) * | 2020-01-13 | 2020-05-08 | 深圳市信维通信股份有限公司 | 5G millimeter wave dual-frequency antenna system based on metal frame and mobile terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595718A (en) * | 2003-09-09 | 2005-03-16 | 索尼株式会社 | Wireless communication apparatus |
| CN101116221A (en) * | 2004-12-07 | 2008-01-30 | 索尼爱立信移动通讯股份有限公司 | Antenna arrangement |
| CN101494320A (en) * | 2008-01-22 | 2009-07-29 | 华硕电脑股份有限公司 | Tri-frequency antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006040609A1 (en) * | 2004-10-13 | 2006-04-20 | Nokia Siemens Networks Asset Management Oy | Half-and quarter-wavelength printed slot ultra-wideband (uwb) antennas for mobile terminals |
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- 2009-09-11 CN CN 200910092945 patent/CN102025022B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595718A (en) * | 2003-09-09 | 2005-03-16 | 索尼株式会社 | Wireless communication apparatus |
| CN101116221A (en) * | 2004-12-07 | 2008-01-30 | 索尼爱立信移动通讯股份有限公司 | Antenna arrangement |
| CN101494320A (en) * | 2008-01-22 | 2009-07-29 | 华硕电脑股份有限公司 | Tri-frequency antenna |
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| CN102025022A (en) | 2011-04-20 |
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