CN103794886B - A kind of Multimode resonant antenna system - Google Patents
A kind of Multimode resonant antenna system Download PDFInfo
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- CN103794886B CN103794886B CN201410050316.1A CN201410050316A CN103794886B CN 103794886 B CN103794886 B CN 103794886B CN 201410050316 A CN201410050316 A CN 201410050316A CN 103794886 B CN103794886 B CN 103794886B
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Abstract
The present invention is public a kind of Multimode resonant antenna system, comprise antenna and pcb board, described antenna is arranged at above described pcb board, and described antenna is metallic region in the view field of pcb board; Described antenna, comprises further: antenna body, feed end and earth terminal; Described antenna is connected with pcb board by earth terminal; Described antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end, and Part III is connected with earth terminal; One is had at least to be made up of the radiating element of some different in width/length in described Part I, Part II, Part III; Distance between described earth terminal and described feed end is between 10mm to 40mm.Compared with prior art, the present invention proposes a kind of Multimode resonant antenna system, it can solve the pcb board that Antenna Design in prior art cannot meet Novel smart mobile phone cannot reserve the problem in headroom district for antenna.
Description
The application is divisional application, and the applying date of its original application is on February 23rd, 2012, application number is 201210041977.9, invention and created name is " a kind of Multimode resonant antenna system ".
Technical field
The present invention relates to antenna for mobile phone, particularly a kind of Multimode resonant antenna system.
Background technology
Antenna is a kind of device utilizing frequency characteristic to receive and transmit.In recent years, for design and the performance of the mobile terminal antenna of radio communication, the developing direction of mobile communication is more and more affected.Particularly portable mobile termianl is as mobile phone, PDA (PersonalDigitalAssistance), MP3/MP4.The bandwidth characteristic of Antenna Design has important impact to radiation characteristic.Antenna realize signal propagate and energy emission all based on the resonance of frequency.If antenna can resonance in multiple frequency, so antenna can at multiple frequency operation.On the other hand, if there is multiple resonance frequency in antenna, designer and user can according to oneself need regulate interested frequency and bandwidth.
Along with the appearance of the smart mobile phone of large-screen and jumbotron, the resonance of antenna is by the impact of traditional pcb board pattern, and design difficulty becomes large.Relative to traditional stick-type phone, clamshell handset, cover-slide-type handset, novel smart mobile phone more focuses on Consumer's Experience, and user departs from keyboard operation completely, and the LCD display of super large is almost equal with mobile phone length.
And the pcb board of Novel smart mobile phone is specially for antenna stays one piece of headroom district to be more and more difficult to realize.Antenna, as Signal reception and the emission element of the Novel multimedia wireless terminals such as smart mobile phone.The size of antenna and operational environment, make the design difficulty of built-in aerial greatly promote.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention proposes a kind of Multimode resonant antenna system, it can solve the pcb board that Antenna Design in prior art cannot meet Novel smart mobile phone cannot reserve the problem in headroom district for antenna.
Technical scheme of the present invention is as follows:
A kind of Multimode resonant antenna system, comprise antenna and pcb board, described antenna is arranged at above described pcb board;
Described antenna is metallic region in the view field of pcb board;
Described antenna, comprises further: antenna body, feed end and earth terminal; Described antenna is connected with pcb board by earth terminal; Described antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end, and Part III is connected with earth terminal;
Part II is concave structure, and it comprises the first radiating element, the second radiating element and the 3rd radiating element; First radiating element and the 3rd radiating element are vertically connected at the head and the tail two ends of the second radiating element;
Part I and the asymmetric setting of Part III;
Part II, Part III form by the radiating element of some different in width/length;
Distance between described earth terminal and described feed end is between 10mm to 40mm.
Preferably, described Part III is roundabout bending structure, comprises the 4th radiating element, the 5th radiating element, the 6th radiating element, the 7th radiating element, the 8th radiating element, the 9th radiating element, the tenth radiating element; Described 4th radiating element is all not identical with length to the width of the tenth radiating element;
Described 4th radiating element is connected with one end of disconnected second radiating element of the first radiating element is vertical, and the 4th radiating element extends to the direction deviating from the second radiating element, is once connected with the 5th radiating element after bending;
5th radiating element extends to the direction perpendicular to the 4th radiating element, is once connected with the 6th radiating element after bending;
6th radiating element extends along parallel with the 4th radiating element and to close second radiating element direction, is connected after first time bending with the 7th radiating element; And after the 6th radiating element is connected with the 7th radiating element, the 6th radiating element continues to extend along former bearing of trend from junction, is connected after second time bending with the 8th radiating element; And after the 6th radiating element is connected with the 8th radiating element, the 6th radiating element extends forward a segment distance from junction again along former bearing of trend;
9th radiating element is connected with the 5th radiating element is vertical; Tenth radiating element is connected with the 6th radiating element is vertical; 8th radiating element is connected with earth terminal is vertical.
Preferably, there is gap in described 4th radiating element and the 7th radiating element, the 8th radiating element; There is gap in described 8th radiating element and described first radiating element, the 7th radiating element; There is gap in described 7th radiating element and the 5th radiating element; There is gap in described 6th radiating element and the second radiating element; Described gap is all in capacitive coupling.
Preferably, described tenth radiating element is positioned at the plane of PCB normal parallel; 4th radiating element is positioned to the 8th radiating element the plane being parallel to pcb board.
Preferably, described Part I comprises the 11 radiating element, the 12 radiating element, the 13 radiating element, the 14 radiating element, the 15 radiating element, the 16 radiating element, the 17 radiating element;
Described 11 radiating element is all not identical with length to the width of the 17 radiating element;
Described 11 radiating element is connected with one end of disconnected second radiating element of the 3rd radiating element is vertical, and the 11 radiating element extends to the direction deviating from the second radiating element, is connected after first time bending with the 12 radiating element;
And after the 11 radiating element is connected with the 12 radiating element, the 11 radiating element extends forward a segment distance from junction again along former bearing of trend, is connected with the 13 radiating element after second time bending;
13 radiating element extends to the direction perpendicular to the 11 radiating element, is once connected with the 14 radiating element after bending; 14 radiating element extends along parallel with the 4th radiating element and to close second radiating element direction, is connected after first time bending with the 15 radiating element; And after the 14 radiating element is connected with the 15 radiating element, the 14 radiating element extends forward a segment distance from junction again along former bearing of trend;
16 radiating element is connected with the 13 radiating element is vertical; 17 radiating element is connected with the 14 radiating element is vertical; 15 radiating element is connected with feed end is vertical.
Preferably, there is gap in described 15 radiating element and the 3rd radiating element, the 11 radiating element, the 12 radiating element; There is gap in described 17 radiating element and described second radiating element, the 12 radiating element; There is gap in described 12 radiating element and the 13 radiating element; Described gap is all in capacitive coupling.
Preferably, described 17 radiating element is positioned at the plane of PCB normal parallel; 11 radiating element is positioned to the 15 radiating element the plane being parallel to pcb board.
Preferably, described first radiating element and the 3rd radiating element wide isometric, the width/height of the second radiating element comparatively the first radiating element is different.
Compared with prior art, beneficial effect of the present invention is as follows:
Antenna system of the present invention, pcb board need not again for antenna reserves headroom district, and simplify the processing technology of pcb board, this antenna system comparatively traditional antenna is more suitable for smart mobile phone.
The antenna size of antenna system of the present invention is 60mm*10mm*6mm, can meet the requirement of communication, can meet again the requirement reducing mobile phone thickness.
The antenna of antenna system of the present invention, because special structural design, makes it be subject to the interference of metal or electronic devices and components very little, therefore when assembling, electronic devices and components can be arranged in the space of antenna bottom.
Antenna system of the present invention can meet the requirement of low frequency and high frequency, and its low frequency covers GSM850/GSM900, and high frequency covers the impedance bandwidth requirement of DCS, PCS, WiFi.
Accompanying drawing explanation
Fig. 1 is the Principle of Antenna schematic diagram of first embodiment of the invention;
Fig. 2 a is one of embodiment of the present invention elementary cell schematic diagram;
Fig. 2 b is the dual form of Fig. 2 a;
Fig. 3 a is first embodiment of the invention elementary cell schematic diagram two;
Fig. 3 b is the dual form of Fig. 3 a;
Fig. 4 is the structural representation of first embodiment of the invention antenna system;
Fig. 5 first embodiment of the invention antenna system harmonic echo loss figure;
Fig. 6 is the integrated structural representation of first embodiment of the invention antenna and USB;
Fig. 7 is the integrated structural representation of first embodiment of the invention antenna and loud speaker;
Fig. 8 is the structural representation of the change case 1 of first embodiment of the invention antenna system;
Fig. 9 is the structural representation of the change case 2 of first embodiment of the invention antenna system;
Figure 10 is the structural representation of second embodiment of the invention antenna system;
Figure 11 is the structural representation of third embodiment of the invention antenna system;
Figure 12 is change case 1 principle schematic of inventive antenna;
Figure 13 is change case 2 principle schematic of inventive antenna;
Figure 14 is change case 3 principle schematic of inventive antenna;
Figure 15 is change case 4 principle schematic of inventive antenna.
Embodiment
A kind of Multimode resonant antenna system, comprise antenna and pcb board, described antenna is arranged at above described pcb board;
Described antenna is metallic region in the view field of pcb board;
Described antenna, comprises further: antenna body, feed end and earth terminal; Described antenna is connected with pcb board by earth terminal; Described antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end, and Part III is connected with earth terminal;
One is had at least to be made up of the radiating element of some different in width/length in described Part I, Part II, Part III;
Distance between described earth terminal and described feed end is between 10mm to 40mm.
Preferably, there is the slot-coupled of certain distance in described Part I/Part III and Part II; And there is slot-coupled between the radiating element of Part I/Part III.
Preferably, the height of described antenna is no more than 1/10 of pcb board width.
Preferably, the distance between described feed end and earth terminal is more than or equal to 15mm, and described antenna is of a size of 60mm*10mm*6mm.
Below with the drawings and specific embodiments, the present invention will be further described:
Embodiment 1
Fig. 1 is the principle schematic of first embodiment of the present invention antenna.With reference to figure 1, antenna comprises feed end 24, earth terminal 25, antenna body; Antenna body comprises Part I 23, Part II 22 and Part III 21.
Part I 23 and Part III 21 symmetrical configuration, and there is the slot-coupled of certain distance g with Part III 21 and Part II 22 in Part I 23.
Part I 23 forms with the radiating element of Part III 21 by some different in width/length.Such structure makes this antenna system can cover multiple frequency range such as low frequency and high frequency simultaneously.
The frequency characteristic brought of theory deduction this kind of structure below:
With reference to figure 2a, the multimode antenna fundamental resonance unit of two sections of different lengths and width, wherein L1 is connected to the ground, and width is 1/5 to 1/2 of L2, has the feature of high impedance.L2 has the most wide degree, in low-impedance feature.Fig. 2 b is the dual form of Fig. 2 a.The direction of arrow is seen into, and represent the impedance operator of resonant element, namely arrow locations is feed placement.
With reference to figure 3a, the multimode antenna fundamental resonance unit of three sections of different lengths and width, wherein L1 is connected to the ground, and width is 1/5 to 1/2 of L2, has the feature of high impedance.L3 is connected with feed, and width is 1/5 to 1/2 of L2.L2 has the most wide degree, in low-impedance feature.Fig. 3 b is the dual form of Fig. 3 a.
Fig. 3 a, Fig. 3 b are compared with Fig. 2 a, Fig. 2 b, and the multimode resonance of three sections of different lengths and width has more resonant frequency point and different frequency pattern is adjustable.For Principle of Antenna is described, L3 and the L1 of Fig. 3 a and Fig. 3 b is equal, namely has symmetric property.For the mode of resonance of antenna, quarter-wave is the resonance that frequency is minimum.Due to feed and ground be positioned at resonant element head and the tail, the lowest resonance wavelength of Fig. 2 a, Fig. 2 b and Fig. 3 a, Fig. 3 b is quarter-wave 2 times, i.e. 1/2nd wavelength.L1, L2 meet L1+L2=λ/2, and λ is wavelength.The length relation of L1 and L2 need be defined, L1=k*L2 for higher modes.Adjustment factor k, the bandwidth sum impedance of adjustable higher order resonances.To the invention multimode antenna of Fig. 1, turn increase another regulated variable g.The introducing of g is the coupling coefficient between lowest resonance pattern and higher order resonances pattern, changes g, and what all frequencies can be caused to become is adjustable.
Briefly, to antenna of the present invention, low-frequency resonant is
high-frequency resonant is respectively
Fig. 4 is the structural representation of first embodiment of the invention antenna system.As Fig. 4, a kind of Multimode resonant antenna system, comprises antenna 200 and pcb board 100,
In the present embodiment, pcb board 100 is the equivalent metal of definite shape, and be namely limitedly relative to antenna, pcb board can be conventional strip, or has the otch of abnormity, groove, protruding elongated metal.Containing multi-layer PCB board and the metallic equivalent on stratum.
Antenna 200 is arranged at above pcb board 100, and antenna 200 is metallic region in the view field of pcb board 100.
Antenna 200 comprises further: antenna body, feed end 202 and earth terminal 201; Antenna 200 is connected with pcb board 100 by earth terminal 201.
Antenna 200 and pcb board have certain altitude interval, namely except the feed end 202 of antenna is connected with pcb board, without other direct connected component.Antenna height is no more than 1/12 of pcb board 100 width.
Line A and line B are the vertical center lines of two of pcb board respectively.
Antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end 202, and Part III is connected with earth terminal 201; Part I and Part III are about center line A and center line B symmetry; Feed end 202 and earth terminal 201 are symmetrical arranged.
Part II is concave structure, and it comprises the first radiating element 1, second radiating element 2 and the 3rd radiating element 3; First radiating element 1 and the 3rd radiating element 3 are vertically connected at the head and the tail two ends of the second radiating element 2.
In the present embodiment, the first radiating element 1 and the 3rd radiating element 3 wide isometric, the width/height of the second radiating element 2 comparatively the first radiating element 1 is different.
Part III is roundabout bending structure, comprises the 4th radiating element 4, the 5th radiating element 5, the 6th radiating element 6, the 7th radiating element 7, the 8th radiating element 8, the 9th radiating element 9; 4th radiating element 4 is all not identical with length to the width of the 9th radiating element 9.
4th radiating element 4 is connected with one end of disconnected second radiating element 2 of the first radiating element 1 is vertical, and the 4th radiating element 4 extends to the direction deviating from the second radiating element 2, is once connected with the 5th radiating element 5 after bending.
5th radiating element 5 extends to the direction perpendicular to the 4th radiating element 4, is once connected with the 6th radiating element 6 after bending.
6th radiating element 6 extends along parallel with the 4th radiating element 4 and to close second radiating element 2 direction, is once connected with the 7th radiating element 7 after bending; And after the 6th radiating element 6 is connected with the 7th radiating element 7, the 6th radiating element 6 extends forward a segment distance from junction again along former bearing of trend.
8th radiating element 8 is connected with the 5th radiating element 5 is vertical; 9th radiating element 9 is connected with the 6th radiating element 6 is vertical; 7th radiating element 7 in the structure of falling L, and is connected with earth terminal 201 is vertical.
In the present embodiment, the limit of the pcb board parallel with the 4th radiating element 4 is the width edge of pcb board.
Distance between earth terminal 201 and feed end 202 is between 10mm to 40mm.And the distance of earth terminal/feed end distance pcb board width edge is about the width of the pcb board of 1/12.
Wherein, there is gap in the 6th radiating element 6 and the second radiating element 2; All there is gap in the 7th radiating element 7 and the first radiating element 1, the 4th radiating element 4, the 5th radiating element 5 and the 6th radiating element 6; Described gap is all in capacitive coupling.Above-mentioned gap is represented with g in Fig. 4.Gap g affects the resonance of low frequency and high frequency.The harmonic echo loss figure of the present embodiment as shown in Figure 5.F
0for low-frequency resonant, f
1, f
2, and f
3for high-frequency resonant.The present embodiment low frequency covers GSM850/GSM900, and high frequency covers the impedance bandwidth requirement of DCS, PCS, WiFi.
9th radiating element 9 is positioned at the plane of pcb board normal parallel; First radiating element 1 is positioned to the 7th radiating element 7 plane being parallel to pcb board.
8th radiating element 8 and the 9th radiating element 9 can have other to be out of shape, the rectangle in the plane of not necessarily normal parallel or other polygons.The bracing frame of usual antenna is three-dimensional curved surface, and the 8th radiating element 8 and the 9th radiating element 9 can change, and conformal with bracing frame.
In the present embodiment, the distance between described feed end and earth terminal is more than or equal to 15mm, and described antenna is of a size of 60mm*10mm*6mm.
Because the structural design of the present embodiment, antenna 200 is made to be metallic region in the view field of pcb board 100, namely metal is that the performance impact of antenna is very little or can disregard, therefore immediately below antenna 200, can be integrated with other element, to reduce and effectively to utilize space, as loud speaker speaker, USB joint, receiver J-Horner etc.As Fig. 6, antenna and USB400 integrated.As Fig. 7, antenna and loud speaker 300 integrated.
The spacing of Part II and Part III can change, as Fig. 8.Fig. 8 is the change case 1 of first embodiment of the invention, and Part II and Part III spacing reduce, close to each other, and the coupling of reinforcement and Part I.
Gap g also can have a lot of change.As Fig. 9.Fig. 9 is the change case 2 of first embodiment of the invention, and it is on the basis of the first embodiment, and the gap between the 6th radiating element 6 and the 7th radiating element 7 extends on the 6th radiating element 6, is two parts by the 6th radiating element 6 vertical partition wall; And the gap between the 6th radiating element 6 and the 7th radiating element 7 continues to extend on the 9th radiating element 9.
In the present embodiment, Part I and Part III are symmetrical.During concrete enforcement, the two also can be asymmetric.
Embodiment 2
Figure 10 is the structural representation of second embodiment of the invention antenna system.As Fig. 2, a kind of Multimode resonant antenna system, comprise antenna 200 and pcb board 100, antenna 200 is arranged at above pcb board 100, and antenna 200 is metallic region in the view field of pcb board 100.
Line A and line B are the vertical center lines of two of pcb board respectively.
Antenna 200 comprises further: antenna body, feed end 202 and earth terminal 201; Antenna 200 is connected with pcb board 100 by earth terminal 201.
Antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end 202, and Part III is connected with earth terminal 201; Part I and Part III symmetry; Feed end 202 and earth terminal 201 are symmetrical arranged.
Part II comprises the first radiating element 1, second radiating element 2, the 3rd radiating element 3 and the 4th radiating element 4; First radiating element 1 and the 3rd radiating element 3 are vertically connected at the head and the tail two ends of the second radiating element 2 side; 4th radiating element 4 is connected with the second radiating element 3 opposite side, and the 4th radiating element 4 and the second radiating element 2 be arranged in parallel.
First radiating element 1 and the 3rd radiating element 3 wide isometric, the length/width of the second radiating element 2, the 4th radiating element 4 and the first radiating element 1 is not identical.
Described Part III is roundabout bending structure, comprises the 5th radiating element 5, the 6th radiating element 6, the 7th radiating element 7, the 8th radiating element 8; 5th radiating element 5 is all not identical with length to the width of the 8th radiating element 8.
5th radiating element 5 is connected with one end of disconnected second radiating element 2 of the first radiating element 1 is vertical, and the 5th radiating element 5 extends to the direction deviating from the second radiating element 2, is once connected with the 6th radiating element 6 after bending.
6th radiating element 6 extends to the direction perpendicular to the 5th radiating element 5, is once connected with the 7th radiating element 7 after bending; 7th radiating element 7 is in inverted T-shaped structure, and its end is connected with the 8th radiating element;
Distance between earth terminal 201 and feed end 202 is between 10mm to 40mm.
There is gap in the 7th radiating element 7 and the 4th radiating element 4, second radiating element 2, the 8th radiating element 8; There is gap in the 8th radiating element 8 and the first radiating element 1, the 5th radiating element 5, the 6th radiating element 6; Described gap is all in capacitive coupling.Above-mentioned gap is represented with g in Figure 10.Gap g affects the resonance of low frequency and high frequency.
4th radiating element 4 is positioned at the plane of pcb board normal parallel; First radiating element 1 is positioned to the 8th radiating element 8 plane being parallel to pcb board to the 3rd radiating element 3 and the 5th radiating element 5.
Embodiment 3
Figure 11 is the structural representation of third embodiment of the invention antenna system.As Figure 11, a kind of Multimode resonant antenna system, comprise antenna 200 and pcb board 100, antenna 200 is arranged at above pcb board 100.
Antenna 200 is metallic region in the view field of pcb board 100.
Antenna 200 comprises further: antenna body, feed end 202 and earth terminal 201; Antenna 200 is connected with pcb board 100 by earth terminal 201; Antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end 202, and Part III is connected with earth terminal 201.
Line A and line B are the vertical center lines of two of pcb board respectively.
Part II is concave structure, and it comprises the first radiating element 1, second radiating element 2 and the 3rd radiating element 3; First radiating element 1 and the 3rd radiating element 3 are vertically connected at the head and the tail two ends of the second radiating element 2.
First radiating element 1 and the 3rd radiating element 3 wide isometric, the width/height of the second radiating element 2 comparatively the first radiating element is different.
Part I and the asymmetric setting of Part III; Part II, Part III form by the radiating element of some different in width/length;
Distance between earth terminal 201 and feed end 202 is between 10mm to 40mm.
Part III is roundabout bending structure, comprises the 4th radiating element 4, the 5th radiating element 5, the 6th radiating element 6, the 7th radiating element 7, the 8th radiating element 8, the 9th radiating element 9, the tenth radiating element 10; 4th radiating element 4 is all not identical with length to the width of the tenth radiating element 10.
4th radiating element 4 is connected with one end of disconnected second radiating element 2 of the first radiating element 1 is vertical, and the 4th radiating element 4 extends to the direction deviating from the second radiating element 2, is once connected with the 5th radiating element 5 after bending.
5th radiating element 5 extends to the direction perpendicular to the 4th radiating element 4, is once connected with the 6th radiating element 6 after bending.
6th radiating element 6 extends along parallel with the 4th radiating element 4 and to close second radiating element 2 direction, is connected after first time bending with the 7th radiating element 7; And after the 6th radiating element 6 is connected with the 7th radiating element 7, the 6th radiating element 6 continues to extend along former bearing of trend from junction, is connected after second time bending with the 8th radiating element 8; And after the 6th radiating element 6 is connected with the 8th radiating element 8, the 6th radiating element 6 extends forward a segment distance from junction again along former bearing of trend.
9th radiating element 9 is connected with the 5th radiating element 5 is vertical; Tenth radiating element 10 is connected with the 6th radiating element 6 is vertical; 8th radiating element 8 is connected with earth terminal 201 is vertical.
There is gap in the 4th radiating element 4 and the 7th radiating element 7, the 8th radiating element 8; There is gap in the 8th radiating element 8 and the first radiating element 1, the 7th radiating element 7; There is gap in the 7th radiating element 7 and the 5th radiating element 5; There is gap in the 6th radiating element 6 and the second radiating element 2; Described gap is all in capacitive coupling.
Tenth radiating element 10 is positioned at the plane of pcb board normal parallel; 4th radiating element 4 is positioned to the 8th radiating element 8 plane being parallel to pcb board.
Part I comprises the 11 radiating element the 11, the 12 radiating element the 12, the 13 radiating element the 13, the 14 radiating element the 14, the 15 radiating element the 15, the 16 radiating element the 16, the 17 radiating element 17.
11 radiating element 11 is all not identical with length to the width of the 17 radiating element 17.
11 radiating element 11 is connected with one end of disconnected second radiating element 2 of the 3rd radiating element 3 is vertical, and the 11 radiating element 11 extends to the direction deviating from the second radiating element 2, is connected after first time bending with the 12 radiating element 12.
And after the 11 radiating element 11 is connected with the 12 radiating element 12, the 11 radiating element 11 extends forward a segment distance from junction again along former bearing of trend, is connected with the 13 radiating element 13 after second time bending.
13 radiating element 13 extends to the direction perpendicular to the 11 radiating element 11, is once connected with the 14 radiating element 14 after bending; 14 radiating element 14 extends along parallel with the 4th radiating element 4 and to close second radiating element 2 direction, is connected after first time bending with the 15 radiating element 15; And after the 14 radiating element 14 is connected with the 15 radiating element 15, the 14 radiating element 14 extends forward a segment distance from junction again along former bearing of trend.
16 radiating element 16 is connected with the 13 radiating element 13 is vertical; 17 radiating element 17 is connected with the 14 radiating element 14 is vertical; 15 radiating element 15 is connected with feed end 202 is vertical.
There is gap in the 15 radiating element 15 and the 3rd radiating element the 3, the 11 radiating element the 11, the 12 radiating element 12; There is gap in the 17 radiating element 17 and the second radiating element the 2, the 12 radiating element 12; There is gap in the 12 radiating element the 12 and the 13 radiating element 13; Described gap is all in capacitive coupling.
17 radiating element 17 is positioned at the plane of pcb board normal parallel; 11 radiating element 11 is positioned to the 15 radiating element 15 plane being parallel to pcb board.
Figure 12 to Figure 15 is that change case 1 principle schematic of inventive antenna is to change case 4 principle schematic.
Gap g has been carried out more change by Figure 12 to Figure 15, is subdivided into g
1, g
2.The coupling of the two joint effect low frequency and high frequency.
Figure 12, two different in width are connected with three sections of resonant element symmetries of length, and feed detail does not have resonant element.G
1, g
2the coupling of joint effect low frequency and high frequency.
Figure 13, three sections of resonant elements of different in width and length, feed and ground connection detail are two sections of resonant elements.G
1, g
2the coupling of joint effect low frequency and high frequency.
Figure 14, three sections of resonant elements (Fig. 3 b) of different in width and length, feed and ground connection detail do not have resonant element, the dual structure of Fig. 1.G
1affect the coupling of low frequency and high frequency.
As Figure 15, three sections of resonant elements (Fig. 3 b) of different in width and length, feed and ground connection detail are two sections of resonant elements.G
1, g
2the coupling of joint effect low frequency and high frequency.
Compared with prior art, beneficial effect of the present invention is as follows:
Antenna system of the present invention, pcb board need not again for antenna reserves headroom district, and simplify the processing technology of pcb board, this antenna system comparatively traditional antenna is more suitable for smart mobile phone.
The antenna size of antenna system of the present invention is 60mm*10mm*6mm, can meet the requirement of communication, can meet again the requirement reducing mobile phone thickness.
The antenna of antenna system of the present invention, because special structural design, makes it be subject to the interference of metal or electronic devices and components very little, therefore when assembling, electronic devices and components can be arranged in the space of antenna bottom.
Antenna system of the present invention can meet the requirement of low frequency and high frequency, and its low frequency covers GSM850/GSM900, and high frequency covers the impedance bandwidth requirement of DCS, PCS, WiFi.
The preferred embodiment of the present invention just sets forth the present invention for helping.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this specification, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technical staff can utilize the present invention well.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (6)
1. a Multimode resonant antenna system, comprises antenna and pcb board, and described antenna is arranged at above described pcb board, it is characterized in that:
Described antenna is metallic region in the view field of pcb board;
Described antenna, comprises further: antenna body, feed end and earth terminal; Described antenna is connected with pcb board by earth terminal; Described antenna body comprises Part I, Part II and Part III further; Described Part I is connected with described Part III by Part II; Described Part I is connected with feed end, and Part III is connected with earth terminal;
Part II is concave structure, and it comprises the first radiating element, the second radiating element and the 3rd radiating element; First radiating element and the 3rd radiating element are vertically connected at the head and the tail two ends of the second radiating element;
Part I and the asymmetric setting of Part III;
Part II, Part III form by the radiating element of some different in width/length;
Distance between described earth terminal and described feed end is between 10mm to 40mm;
Described Part III is roundabout bending structure, comprises the 4th radiating element, the 5th radiating element, the 6th radiating element, the 7th radiating element, the 8th radiating element, the 9th radiating element, the tenth radiating element; Described 4th radiating element is all not identical with length to the width of the tenth radiating element;
Described 4th radiating element is connected with one end of disconnected second radiating element of the first radiating element is vertical, and the 4th radiating element extends to the direction deviating from the second radiating element, is once connected with the 5th radiating element after bending;
5th radiating element extends to the direction perpendicular to the 4th radiating element, is once connected with the 6th radiating element after bending;
6th radiating element extends along parallel with the 4th radiating element and to close second radiating element direction, is connected after first time bending with the 7th radiating element; And after the 6th radiating element is connected with the 7th radiating element, the 6th radiating element continues to extend along former bearing of trend from junction, is connected after second time bending with the 8th radiating element; And after the 6th radiating element is connected with the 8th radiating element, the 6th radiating element extends forward a segment distance from junction again along former bearing of trend;
9th radiating element is connected with the 5th radiating element is vertical; Tenth radiating element is connected with the 6th radiating element is vertical; 8th radiating element is connected with earth terminal is vertical;
Described Part I comprises the 11 radiating element, the 12 radiating element, the 13 radiating element, the 14 radiating element, the 15 radiating element, the 16 radiating element, the 17 radiating element;
Described 11 radiating element is all not identical with length to the width of the 17 radiating element;
Described 11 radiating element is connected with one end of disconnected second radiating element of the 3rd radiating element is vertical, and the 11 radiating element extends to the direction deviating from the second radiating element, is connected after first time bending with the 12 radiating element;
And after the 11 radiating element is connected with the 12 radiating element, the 11 radiating element extends forward a segment distance from junction again along former bearing of trend, is connected with the 13 radiating element after second time bending;
13 radiating element extends to the direction perpendicular to the 11 radiating element, is once connected with the 14 radiating element after bending; 14 radiating element extends along parallel with the 4th radiating element and to close second radiating element direction, is connected after first time bending with the 15 radiating element; And after the 14 radiating element is connected with the 15 radiating element, the 14 radiating element extends forward a segment distance from junction again along former bearing of trend;
16 radiating element is connected with the 13 radiating element is vertical; 17 radiating element is connected with the 14 radiating element is vertical; 15 radiating element is connected with feed end is vertical.
2. antenna system according to claim 1, is characterized in that, described 4th radiating element and the 7th radiating element, the 8th radiating element exist gap; There is gap in described 8th radiating element and described first radiating element, the 7th radiating element; There is gap in described 7th radiating element and the 5th radiating element; There is gap in described 6th radiating element and the second radiating element; Described gap is all in capacitive coupling.
3. antenna system according to claim 1, is characterized in that, described tenth radiating element is positioned at the plane of PCB normal parallel; 4th radiating element is positioned to the 8th radiating element the plane being parallel to pcb board.
4. antenna system according to claim 1, is characterized in that, described 15 radiating element and the 3rd radiating element, the 11 radiating element, the 12 radiating element exist gap; There is gap in described 17 radiating element and described second radiating element, the 12 radiating element; There is gap in described 12 radiating element and the 13 radiating element; Described gap is all in capacitive coupling.
5. antenna system according to claim 1, is characterized in that, described 17 radiating element is positioned at the plane of PCB normal parallel; 11 radiating element is positioned to the 15 radiating element the plane being parallel to pcb board.
6. antenna system according to claim 1, is characterized in that, described first radiating element and the 3rd radiating element wide isometric, the width/height of the second radiating element comparatively the first radiating element is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050316.1A CN103794886B (en) | 2012-02-23 | 2012-02-23 | A kind of Multimode resonant antenna system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210041977.9A CN102544774B (en) | 2012-02-23 | 2012-02-23 | Multimode resonant antenna system |
| CN201410050316.1A CN103794886B (en) | 2012-02-23 | 2012-02-23 | A kind of Multimode resonant antenna system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210041977.9A Division CN102544774B (en) | 2012-02-23 | 2012-02-23 | Multimode resonant antenna system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103794886A CN103794886A (en) | 2014-05-14 |
| CN103794886B true CN103794886B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050318.0A Expired - Fee Related CN103811846B (en) | 2012-02-23 | 2012-02-23 | A kind of Multimode resonant antenna system |
| CN201410050316.1A Expired - Fee Related CN103794886B (en) | 2012-02-23 | 2012-02-23 | A kind of Multimode resonant antenna system |
| CN201210041977.9A Active CN102544774B (en) | 2012-02-23 | 2012-02-23 | Multimode resonant antenna system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410050318.0A Expired - Fee Related CN103811846B (en) | 2012-02-23 | 2012-02-23 | A kind of Multimode resonant antenna system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210041977.9A Active CN102544774B (en) | 2012-02-23 | 2012-02-23 | Multimode resonant antenna system |
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| CN (3) | CN103811846B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167594B (en) * | 2013-05-20 | 2018-09-25 | 深圳富泰宏精密工业有限公司 | The wireless communication device of wide frequency antenna and the application wide frequency antenna |
| CN104253300A (en) * | 2013-06-26 | 2014-12-31 | 重庆美桀电子科技有限公司 | Dual-band antenna capable of transmitting and receiving WiFi (Wireless Fidelity) and GPS (Global Positioning System) signals |
| TWI528635B (en) * | 2014-07-25 | 2016-04-01 | 緯創資通股份有限公司 | Portable electronic device and loop antenna thereof |
| CN108565543B (en) * | 2018-01-18 | 2023-10-17 | 深圳市信维通信股份有限公司 | MIMO antenna structure and handheld device with same |
| CN114447583B (en) * | 2019-08-23 | 2023-09-01 | 华为技术有限公司 | Antenna and electronic equipment |
| CN112751155B (en) * | 2019-10-31 | 2022-04-05 | 华为技术有限公司 | Electronic device |
| CN113097698B (en) * | 2020-01-08 | 2022-07-19 | 华为技术有限公司 | Antenna assembly and mobile terminal |
| CN112310663B (en) * | 2020-09-18 | 2021-10-26 | 西安电子科技大学 | Broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance |
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| CN1893182A (en) * | 2005-06-28 | 2007-01-10 | 摩托罗拉公司 | Antenna system |
| US7358903B1 (en) * | 2007-04-02 | 2008-04-15 | Cheng Uei Precision Industry Co., Ltd. | Triple-band embedded antenna |
| CN101730957A (en) * | 2007-04-20 | 2010-06-09 | 斯凯克罗斯公司 | Multimode antenna structure |
| CN102142611A (en) * | 2010-02-01 | 2011-08-03 | 深圳富泰宏精密工业有限公司 | Dipole antenna |
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| EP1858114B1 (en) * | 2005-01-18 | 2009-06-17 | Murata Manufacturing Co., Ltd. | Antenna structure and wireless communication apparatus equipped with it |
| CN101567483B (en) * | 2008-04-23 | 2014-03-19 | 宏碁股份有限公司 | Multi-frequency folded coil antenna |
| CN101997165B (en) * | 2010-10-27 | 2014-07-30 | 惠州Tcl移动通信有限公司 | Enclosed type multiband aerial and wireless communication device thereof |
| CN102299406B (en) * | 2011-06-16 | 2014-09-24 | 上海安费诺永亿通讯电子有限公司 | Multi-frequency antenna used for mobile terminal |
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- 2012-02-23 CN CN201410050318.0A patent/CN103811846B/en not_active Expired - Fee Related
- 2012-02-23 CN CN201410050316.1A patent/CN103794886B/en not_active Expired - Fee Related
- 2012-02-23 CN CN201210041977.9A patent/CN102544774B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1893182A (en) * | 2005-06-28 | 2007-01-10 | 摩托罗拉公司 | Antenna system |
| US7358903B1 (en) * | 2007-04-02 | 2008-04-15 | Cheng Uei Precision Industry Co., Ltd. | Triple-band embedded antenna |
| CN101730957A (en) * | 2007-04-20 | 2010-06-09 | 斯凯克罗斯公司 | Multimode antenna structure |
| CN102142611A (en) * | 2010-02-01 | 2011-08-03 | 深圳富泰宏精密工业有限公司 | Dipole antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103794886A (en) | 2014-05-14 |
| CN103811846A (en) | 2014-05-21 |
| CN102544774A (en) | 2012-07-04 |
| CN103811846B (en) | 2015-11-25 |
| CN102544774B (en) | 2014-05-07 |
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