CN105552540A - Compact high-isolation triple-frequency eight-unit MIMO mobile phone antenna - Google Patents
Compact high-isolation triple-frequency eight-unit MIMO mobile phone antenna Download PDFInfo
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- CN105552540A CN105552540A CN201510975831.5A CN201510975831A CN105552540A CN 105552540 A CN105552540 A CN 105552540A CN 201510975831 A CN201510975831 A CN 201510975831A CN 105552540 A CN105552540 A CN 105552540A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
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Abstract
The invention discloses a compact high-isolation triple-frequency eight-unit MIMO mobile phone antenna. The antenna is characterized by comprising a rectangular floor (1), wherein eight square holes are formed in the two short edges of the floor (1); a gap (4) is formed between each adjacent square holes; the floor (1) is covered with a rectangular substrate (2); square blocks (3) are arranged on the substrate (2) directly facing to the upside of the square holes; and an antenna unit patch is etched in each square block (3). The compact high-isolation triple-frequency eight-unit MIMO mobile phone antenna provided by the invention is high in isolation among antenna unit patches, high in communication quality, small in size, and suitable for a mobile phone 4G communication network.
Description
Technical field
The present invention relates to a kind of compact high-isolation three frequently eight unit MIMO antenna for mobile phone, particularly relate to a kind of be applicable to mobile phone 4G communication network, reduce the compact high-isolation three eight unit MIMO antenna for mobile phone frequently that antenna takies volume.
Background technology
The fast development of wireless technology makes all the more to improve the requirement of radio communication quality, wireless communication technology be unable to do without antenna, for mobile terminals such as mobile phones, as one and important parts, govern the overall performance of mobile phone wireless transmission, traditional antenna for mobile phone can not meet the requirement of existing wireless telecommunications two-forty, high accuracy, more urgent in the miniaturization of antenna and the requirement of multiaerial system.
MIMO technology proposes to arrange how secondary transmitting antenna and how secondary reception antenna at transmitting terminal and receiving terminal respectively, then can utilize the multipath effect of wireless communication system, improves the performance of link.MIMO can abundant development space resource, under limited frequency spectrum resource and fixing transmitting power, improves the communication quality (as error rate) of each user or improves communication efficiency, as data rate.MIMO can solve at present more and more nervous frequency resource contradiction, does not increase hardware designs difficulty again, but also can avoid the electromagnetic radiation brought because increasing transmitting power.But, because the limited space of cell phone system, coupling between antenna element is sharply strengthened along with the increase of number of antennas or the reduction of antenna element separation, and this will certainly make the antenna performances such as the impedance bandwidth of antenna element, antenna pattern, radiation efficiency be had a strong impact on.Therefore the design of MIMO antenna for mobile phone becomes a large focus.
Summary of the invention
Technical problem to be solved by this invention is, provide that isolation between a kind of antenna element paster is good, the high communication quality, compact high-isolation three eight unit MIMO antenna for mobile phone frequently that volume is little; Further, the invention provides the compact high-isolation three eight unit MIMO antenna for mobile phone frequently that a kind of antenna element paster is miniaturized, performance is good.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of compact high-isolation three eight unit MIMO antenna for mobile phone frequently, it is characterized in that, comprising: rectangular floor, on two minor faces on described floor, symmetrical expression has 8 square openings, is provided with gap between adjacent described square opening; Described floor is coated with rectangular substrate, is just provided with square on the described substrate above described square opening; On described square, all etching has antenna element paster.
Described antenna element paster comprises the first antenna element and the second antenna element; Described square comprises 4 the first squares being positioned at described substrate peripheral and 4 the second squares be positioned in the middle part of described substrate; Described first square all posts described first antenna element; Described second square all posts described second antenna element; Described first antenna element in same short side and between the second antenna element below described gap be broken line type; Described in same short side two between second antenna element below described gap be the linear pattern paralleled with long limit, described floor.
The gap of broken line type connects the square opening below between adjacent described first antenna element and the second antenna element; The setting in the gap of broken line type, under the in-plant condition between the first antenna element and the second antenna element, ensure the performance of antenna and improve isolation between antenna element paster, make compact conformation of the present invention, volume is little.
The side that the described square of two terminations is relative is the first side, and the side that the described square of two terminations is opposing is the second side, identical termination two described in the opposite face of the first square be the 3rd side, identical termination two described in the back of the first square be the 4th side, described first antenna element comprises the first bonding jumper being affixed on described first side, one end of described first bonding jumper is connected with the one end of the second bonding jumper being affixed on described 4th side, and described first bonding jumper is identical with the second strip width and top margin is all mutually concordant with the upper surface of described square, the length of described second bonding jumper is less than the length of described 4th side, the other end of described first bonding jumper is connected with the one end of the 3rd bonding jumper being affixed on described 3rd side, the width of described 3rd bonding jumper is less than the width of described first bonding jumper and top margin is mutually concordant with the upper surface of described square, the length of described 3rd bonding jumper is less than the length of described 3rd side, and the other end of described 3rd bonding jumper is connected with perpendicular the 5th bonding jumper be connected respectively with its 4th bonding jumper connected horizontally, described 4th bonding jumper is identical with the length of described 3rd side with the length sum of the 3rd bonding jumper, the end of described 4th bonding jumper is connected with the 6th bonding jumper top of Vertical dimension, the length of described 6th bonding jumper is identical with the height of described square, the end of described 6th bonding jumper is connected with the one end of the 7th bonding jumper be positioned on described substrate, and the end of described 7th bonding jumper is provided with the first short dot, the length of described 5th bonding jumper is less than the height of described square, the bottom of described 5th bonding jumper is connected with one end of the 8th bonding jumper to described second side surface direction horizontal-extending, the other end of described 8th bonding jumper is connected with its 9th perpendicular bonding jumper, the end of described 9th bonding jumper is mutually concordant with the bottom of described 3rd side, described 9th bonding jumper is connected with the tenth bonding jumper one end that described 7th bonding jumper parallels, the other end of described tenth bonding jumper is with perpendicular and be connected to the 11 bonding jumper that described first side surface direction extends, the end of described 11 bonding jumper is provided with the first distributing point, the other end of described 3rd bonding jumper is also connected with one end of the 12 bonding jumper, perpendicular with described 3rd bonding jumper on the upper surface that described 12 bonding jumper is arranged at described square, the other end of described 12 bonding jumper is connected with one end of the 13 C-shaped bonding jumper, and the opening of described 13 bonding jumper is towards described second side, article body of described 12 bonding jumper is connected with one end of the 14 bonding jumper is vertical, and described 13 bonding jumper and the 14 bonding jumper lay respectively at the both sides of described 12 bonding jumper, the other end of described 14 bonding jumper is connected with one end of the 15 perpendicular bonding jumper, the other end of described 15 bonding jumper is connected with one end of the 16 C-shaped bonding jumper, and the opening of described 16 bonding jumper is towards described second side and to be positioned at described 13 bonding jumper inner, described 13 bonding jumper, the 14 bonding jumper, the 15 bonding jumper and the 16 bonding jumper are all positioned at the upper surface of described square.
The bending part of C type is right angle.
Identical termination two described in the opposite face of the second square be the 5th side, identical termination two described in the back of the second square be the 6th side, described second antenna element comprises the 17 bonding jumper be affixed on described 5th side, the top margin of described 17 bonding jumper is mutually concordant with the upper surface of described second square, the length of described 17 bonding jumper is identical with the length of described 5th side, the width of described 17 bonding jumper is less than the height of described second square, one end of described 17 bonding jumper is connected with the one end of the 18 bonding jumper being affixed on described second side, the length of described 18 bonding jumper is less than the length of described second side, the width of described 18 bonding jumper is less than the width of described 17 bonding jumper, the other end of described 17 bonding jumper is connected with the one end of the 19 bonding jumper being affixed on described first side, and the other end of described 19 bonding jumper is connected with perpendicular the 21 bonding jumper be connected respectively with its 20 bonding jumper connected horizontally, described 20 bonding jumper is identical with the length of described first side with the length sum of the 19 bonding jumper, the described end of the 20 bonding jumper is connected with the 22 bonding jumper top of Vertical dimension, the length of described 22 bonding jumper is identical with the height of described square, the end of described 22 bonding jumper is connected with the one end of the 23 bonding jumper be positioned on described substrate, and the end of described 23 bonding jumper is provided with the second short dot, the length of described 21 bonding jumper is identical with the height of described square, the bottom of described 21 bonding jumper with to the 5th side surface direction horizontal-extending and the one end being affixed on the 24 bonding jumper of described first side be connected, the other end of described 24 bonding jumper is connected with the one end of the 25 bonding jumper paralleled with described 23 bonding jumper, and the end of described 25 bonding jumper is provided with the second distributing point, the other end of described 19 bonding jumper is also connected with the one end of the 26 bonding jumper being affixed on described second square upper surface is perpendicular, the other end of described 26 bonding jumper is connected with the middle part of the 27 bonding jumper, described 27 bonding jumper is connected with one end of the 28 bonding jumper of inverted L shape near described one end of 5th side, and the opening of described inverted L shape is towards described 6th side, described 27 bonding jumper is connected with one end of the 29 bonding jumper is vertical near one end of described 6th side, the other end of described 29 bonding jumper is connected with one end of the 30 bonding jumper to described 5th side surface direction horizontal-extending, the described other end of the 30 bonding jumper is connected with one end of the 31 bonding jumper of inverted L shape, and described 31 bonding jumper opening is towards described 6th side, described 31 bonding jumper, the 30 bonding jumper and the 29 bonding jumper are all positioned at described 28 bonding jumper and are all affixed on described second square upper surface, the end of described 31 bonding jumper is connected with the one end of the 32 bonding jumper being affixed on described 6th side is vertical, the end of described 32 bonding jumper be affixed on described 6th side and to the 33 bonding jumper of described first side surface direction horizontal-extending one end and be connected.
The side of described 15 bonding jumper is mutually concordant with described second side.
The width of described 4th bonding jumper is less than the width of described 3rd bonding jumper and top margin is mutually concordant with the upper surface of described square; Described 6th bonding jumper is affixed on described 3rd side and side is mutually concordant with described second side; Described 5th bonding jumper, the 8th bonding jumper and the 9th bonding jumper are all affixed on described 3rd side; Described 4th bonding jumper, the 6th bonding jumper, the 7th bonding jumper, the 5th bonding jumper, the 8th bonding jumper, the 9th bonding jumper, the tenth bonding jumper, the 11 bonding jumper, the 12 bonding jumper, the 13 bonding jumper, 14 bonding jumpers, the 15 bonding jumper are all identical with the width of the 16 bonding jumper.
Described 22 bonding jumper to be positioned on described first side and mutually concordant with described 6th side, the width of described 22 bonding jumper is identical with the width of described 20 bonding jumper and be less than the width of described 19 bonding jumper, and described 19 bonding jumper, described 18 bonding jumper, the 21 bonding jumper, the 23 bonding jumper, the 24 bonding jumper, the 25 bonding jumper, the 26 bonding jumper, the 28 bonding jumper, the 29 bonding jumper, the 30 bonding jumper, the 31 bonding jumper are all identical with the width of the 32 bonding jumper; The width of described 33 bonding jumper is greater than the width of described 17 bonding jumper and is less than the height of described square, and the length of described 33 bonding jumper is less than the length of described 6th side; The side of described 29 bonding jumper is mutually concordant with described 6th side.
The material on described floor comprises copper; The material of described substrate and square is FR4; The thickness of described substrate is 1mm.
The communications band of described antenna element paster covers the F-band of LTE, E frequency range and D frequency range.
Distance between the described antenna element paster of identical termination is less than 10mm.
Antenna element paster is etched on the square of FR4 material of 10mm*10mm*5mm, and is placed on the large cuboid of FR4 (135mm*68.8mm*1mm, i.e. substrate) surface that thickness is 1mm.
The object of the invention is to solve the mobile terminal such as mobile phone for the miniaturization of multiaerial system and the rational problem of performance index.The present invention, based on inverse-F antenna, is bent and is covered on FR4 substrate square, and by floor crack gap realize antenna element miniaturization, ensure that its performance and insulation request good each other reach the MIMO performance of antenna system.
The present invention includes copper floor, FR4 substrate, copper antenna element paster.Antenna element paster is prototype with inverse-F antenna, is folded into stereochemical structure, is etched in the FR4 cuboid surface being of a size of 10mm*10mm*5mm.Antenna element presents symmetrical placement, the frequency range of the first antenna element: 1.86Ghz-1.94Ghz(VSWR<2), 2.29Ghz-2.41Ghz(VSWR<2), 2.53Ghz-2.68Ghz(VSWR<2); The frequency range of the second antenna element: 1.87Ghz-1.93Ghz(VSWR<2), 2.28Ghz-2.68Ghz(VSWR<2).Insulated degree requirement good each other between antenna element paster is realized by gap of cracking to underlying floor between antenna element paster and antenna element paster.
Compared with prior art, tool of the present invention has the following advantages:
First: this antenna element paster small-sized, the volume taken only has the volume of 10mm*10mm*5mm, and communications band then covers F-band, E frequency range, the D frequency range of LTE;
Second: the isolation realizing-10dB only have the distance of 9.6mm between antenna element paster and antenna element paster under, fully ensure that the impedance bandwidth of 8 antenna element paster units, gain and radiation direction.
figure of description
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing of part A in Fig. 1;
Fig. 3 is the enlarged drawing of part B in Fig. 1;
Fig. 4 is the plane outspread drawing of Fig. 2;
Fig. 5 is the plane outspread drawing of Fig. 3;
Fig. 6 is the structural representation on floor in the present invention;
Fig. 7 is that in Fig. 1, part A frequency is the directional diagram of 1.9GHz;
Fig. 8 is that in Fig. 1, part A frequency is the directional diagram of 2.35GHz;
Fig. 9 is that in Fig. 1, part A frequency is the directional diagram of 2.58GHz;
Figure 10 is that in Fig. 1, part B frequency is the directional diagram of 1.9GHz;
Figure 11 is that in Fig. 1, part B frequency is the directional diagram of 2.35GHz;
Figure 12 is that in Fig. 1, part B frequency is the directional diagram of 2.58GHz;
Figure 13 is the return loss of the first antenna element and the second antenna element in the present invention; Wherein S11 represents the return loss of the first antenna element, and S22 represents the return loss of the second antenna element;
Transmission coefficient in Figure 14 the present invention between the first antenna element and other antenna elements; Wherein by 4 of upper end in Fig. 1 antenna element pasters from left to right successively called after 1., 2., 3., 4.; By 4 of lower end in Fig. 1 antenna element pasters from left to right successively called after 5., 6., 7., 8.; Wherein S11 representative return loss 1.; S12 represents the transmission coefficient 2. arrived 1.; S13 represents the transmission coefficient 3. arrived 1.; S14 represents the transmission coefficient 4. arrived 1.; S15 represents the transmission coefficient 5. arrived 1.; S16 represents the transmission coefficient 6. arrived 1.; S17 represents the transmission coefficient 7. arrived 1.; S18 represents the transmission coefficient 8. arrived 1.;
Figure 15 is the transmission coefficient in the present invention between the second antenna element and other antenna elements; Wherein S21 represents the transmission coefficient 1. arrived 2.; S22 representative return loss 2.; S23 represents the transmission coefficient 3. arrived 2.; S24 represents the transmission coefficient 4. arrived 2.; S25 represents the transmission coefficient 5. arrived 2.; S26 represents the transmission coefficient 6. arrived 2.; S27 represents the transmission coefficient 7. arrived 2.; 8. S28 arrives transmission coefficient 2.;
Figure 16 is the gain of the present invention first antenna element and the second antenna element; Wherein Gain1 represents the gain of the first antenna element, and Gain2 represents the gain of the second antenna element.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Fig. 1 ~ Figure 16, a kind of compact high-isolation three eight unit MIMO antenna for mobile phone frequently, it is characterized in that, comprising: rectangular floor 1, on two minor faces on described floor 1, symmetrical expression has 8 square openings, is provided with gap 4 between adjacent described square opening; Described floor 1 is coated with rectangular substrate 2, is just provided with square 3 on the described substrate 2 above described square opening; On described square 3, all etching has antenna element paster.
Described antenna element paster comprises the first antenna element 5 and the second antenna element 6; Described square 3 comprises 4 the first squares being positioned at described substrate 2 periphery and 4 the second squares be positioned in the middle part of described substrate 2; Described first square all posts described first antenna element 5; Described second square all posts described second antenna element 6; Described first antenna element 5 in same short side and between the second antenna element 6 below described gap 4 be broken line type; Described in same short side two between second antenna element 6 below described gap 4 be the linear pattern paralleled with long limit, described floor 1.
The side that the described square 3 of two terminations is relative is the first side, and the side that the described square 3 of two terminations is opposing is the second side, identical termination two described in the opposite face of the first square be the 3rd side, identical termination two described in the back of the first square be the 4th side, described first antenna element 5 comprises the first bonding jumper 7 being affixed on described first side, one end of described first bonding jumper 7 is connected with the one end of the second bonding jumper 8 being affixed on described 4th side, and described first bonding jumper 7 is identical with the second bonding jumper 8 width and top margin is all mutually concordant with the upper surface of described square 3, the length of described second bonding jumper 8 is less than the length of described 4th side, the other end of described first bonding jumper 7 is connected with the one end of the 3rd bonding jumper 9 being affixed on described 3rd side, the width of described 3rd bonding jumper 9 is less than the width of described first bonding jumper 7 and top margin is mutually concordant with the upper surface of described square 3, the length of described 3rd bonding jumper 9 is less than the length of described 3rd side, and the other end of described 3rd bonding jumper 9 is connected with perpendicular the 5th bonding jumper 11 be connected respectively with its 4th bonding jumper 10 connected horizontally, described 4th bonding jumper 10 is identical with the length of described 3rd side with the length sum of the 3rd bonding jumper 9, the end of described 4th bonding jumper 10 is connected with the 6th bonding jumper 12 top of Vertical dimension, the length of described 6th bonding jumper 12 is identical with the height of described square 3, the end of described 6th bonding jumper 12 is connected with the one end of the 7th bonding jumper 13 be positioned on described substrate 2, and the end of described 7th bonding jumper 13 is provided with the first short dot 14, the length of described 5th bonding jumper 11 is less than the height of described square 3, the bottom of described 5th bonding jumper 11 is connected with one end of the 8th bonding jumper 15 to described second side surface direction horizontal-extending, the other end of described 8th bonding jumper 15 is connected with its 9th perpendicular bonding jumper 16, the end of described 9th bonding jumper 16 is mutually concordant with the bottom of described 3rd side, described 9th bonding jumper 16 is connected with the tenth bonding jumper 17 one end that described 7th bonding jumper 13 parallels, the other end of described tenth bonding jumper 17 is with perpendicular and be connected to the 11 bonding jumper 18 that described first side surface direction extends, the end of described 11 bonding jumper 18 is provided with the first distributing point 19, the other end of described 3rd bonding jumper 9 is also connected with one end of the 12 bonding jumper 20, perpendicular with described 3rd bonding jumper 9 on the upper surface that described 12 bonding jumper 20 is arranged at described square 3, the other end of described 12 bonding jumper 20 is connected with one end of the 13 C-shaped bonding jumper 21, and the opening of described 13 bonding jumper 21 is towards described second side, article body of described 12 bonding jumper 20 is connected with one end of the 14 bonding jumper 22 is vertical, and described 13 bonding jumper the 21 and the 14 bonding jumper 22 lays respectively at the both sides of described 12 bonding jumper 20, the other end of described 14 bonding jumper 22 is connected with one end of the 15 perpendicular bonding jumper 23, the other end of described 15 bonding jumper 23 is connected with one end of the 16 C-shaped bonding jumper 24, and the opening of described 16 bonding jumper 24 is towards described second side and to be positioned at described 13 bonding jumper 21 inner, described 13 bonding jumper the 21, the 14 bonding jumper the 22, the 15 bonding jumper the 23 and the 16 bonding jumper 24 is all positioned at the upper surface of described square 3.
Identical termination two described in the opposite face of the second square be the 5th side, identical termination two described in the back of the second square be the 6th side, described second antenna element 6 comprises the 17 bonding jumper 25 be affixed on described 5th side, the top margin of described 17 bonding jumper 25 is mutually concordant with the upper surface of described second square, the length of described 17 bonding jumper 25 is identical with the length of described 5th side, the width of described 17 bonding jumper 25 is less than the height of described second square, one end of described 17 bonding jumper 25 is connected with the one end of the 18 bonding jumper 26 being affixed on described second side, the length of described 18 bonding jumper 26 is less than the length of described second side, the width of described 18 bonding jumper 26 is less than the width of described 17 bonding jumper 25, the other end of described 17 bonding jumper 25 is connected with the one end of the 19 bonding jumper 27 being affixed on described first side, and the other end of described 19 bonding jumper 27 is connected with perpendicular the 21 bonding jumper 29 be connected respectively with its 20 bonding jumper 28 connected horizontally, described 20 bonding jumper 28 is identical with the length of described first side with the length sum of the 19 bonding jumper 27, the end of described 20 bonding jumper 28 is connected with the 22 bonding jumper 30 top of Vertical dimension, the length of described 22 bonding jumper 30 is identical with the height of described square 3, the end of described 22 bonding jumper 30 is connected with the one end of the 23 bonding jumper 31 be positioned on described substrate 2, and the end of described 23 bonding jumper 31 is provided with the second short dot 32, the length of described 21 bonding jumper 29 is identical with the height of described square 3, the bottom of described 21 bonding jumper 28 with to the 5th side surface direction horizontal-extending and the one end being affixed on the 24 bonding jumper 33 of described first side be connected, the other end of described 24 bonding jumper 33 is connected with the one end of the 25 bonding jumper 34 paralleled with described 23 bonding jumper 31, and the end of described 25 bonding jumper 34 is provided with the second distributing point 35, the other end of described 19 bonding jumper 27 is also connected with the one end of the 26 bonding jumper 36 being affixed on described second square upper surface is perpendicular, the other end of described 26 bonding jumper 36 is connected with the middle part of the 27 bonding jumper 37, described 27 bonding jumper 37 is connected with one end of the 28 bonding jumper 38 of inverted L shape near described one end of 5th side, and the opening of described inverted L shape is towards described 6th side, described 27 bonding jumper 37 is connected with one end of the 29 bonding jumper 39 is vertical near one end of described 6th side, the other end of described 29 bonding jumper 39 is connected with one end of the 30 bonding jumper 40 to described 5th side surface direction horizontal-extending, the described other end of the 30 bonding jumper 40 is connected with one end of the 31 bonding jumper 41 of inverted L shape, and described 31 bonding jumper 41 opening is towards described 6th side, described 31 bonding jumper the 41, the 30 bonding jumper the 40 and the 29 bonding jumper 39 is all positioned at described 28 bonding jumper 38 and is all affixed on described second square upper surface, the end of described 31 bonding jumper 41 is connected with the one end of the 32 bonding jumper 42 being affixed on described 6th side is vertical, the end of described 32 bonding jumper 42 be affixed on described 6th side and to the 33 bonding jumper 43 of described first side surface direction horizontal-extending one end and be connected.
The side of described 15 bonding jumper 23 is mutually concordant with described second side.
The width of described 4th bonding jumper 10 is less than the width of described 3rd bonding jumper 9 and top margin is mutually concordant with the upper surface of described square 3; Described 6th bonding jumper 12 is affixed on described 3rd side and side is mutually concordant with described second side; Described 5th bonding jumper 11, the 8th bonding jumper 15 and the 9th bonding jumper 16 are all affixed on described 3rd side; Described 4th bonding jumper 10, the 6th bonding jumper 12, the 7th bonding jumper 13, the 5th bonding jumper 11, the 8th bonding jumper 15, the 9th bonding jumper 16, the tenth bonding jumper the 17, the 11 bonding jumper the 18, the 12 bonding jumper the 20, the 13 bonding jumper 21,14 bonding jumper the 22, the 15 bonding jumper 23 are all identical with the width of the 16 bonding jumper 24.
Described 22 bonding jumper 30 to be positioned on described first side and mutually concordant with described 6th side, the width of described 22 bonding jumper 30 is identical with the width of described 20 bonding jumper 28 and be less than the width of described 19 bonding jumper 27, described 19 bonding jumper 27, described 18 bonding jumper 26, 21 bonding jumper 29, 23 bonding jumper 31, 24 bonding jumper 33, 25 bonding jumper 34, 26 bonding jumper 36, 28 bonding jumper 38, 29 bonding jumper 39, 30 bonding jumper 40, 31 bonding jumper 41 is all identical with the width of the 32 bonding jumper 42, the width of described 33 bonding jumper 43 is greater than the width of described 17 bonding jumper 25 and is less than the height of described square 3, and the length of described 33 bonding jumper 43 is less than the length of described 6th side, the side of described 29 bonding jumper 39 is mutually concordant with described 6th side.
The material on described floor 1 comprises copper; The material of described substrate 2 and square 3 is FR4; The thickness of described substrate 2 is 1mm.
The communications band of described antenna element paster covers the F-band of LTE, E frequency range and D frequency range.
Distance between the described antenna element paster of identical termination is less than 10mm.
Figure 13 is the S parameter curve between the first antenna element 5 and between the second antenna element 6, and as can be seen from Figure at frequency band 1.88-1.92Ghz, in 2.3-2.4Ghz, 2.54-2.66Ghz, S parameter is all below-10dB.Cover LTEF frequency range, E frequency range, D frequency range, frequency range internal antenna has good impedance matching property.
Figure 14 and Figure 15 sets forth the S parameter of the first antenna element 5 and the second antenna element 6 and other seven antenna elements.Because the symmetry of antenna system, the S parameter of antenna also has symmetry, and the S parameter providing the first antenna element 5 and the second antenna element 6 just represents the S parameter of whole antenna element.Beeline as seen from the figure between adjacent two antenna elements only also can realize the isolation of-10dB when 9.6mm, the isolation between non-conterminous unit achieves the isolation of at least more than-15dB.
Fig. 7 ~ Figure 12 sets forth the first antenna element 5 and the antenna pattern of the second antenna element 6 when 1.9Ghz, 2.35Ghz, 2.58Ghz, antenna all can receive the signal from multiple directions in each frequency range simultaneously, also can transmit to multiple directions simultaneously, can the mobile terminals such as mobile phone be widely used in.
Figure 16 gives the gain of the first antenna element 5 and the second antenna element 6, and antenna has good radiation characteristic in frequency band range as seen from the figure, achieves good performance in conjunction with the visible whole antenna of antenna pattern.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles 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 (10)
1. compact high-isolation three eight unit MIMO antenna for mobile phone frequently, it is characterized in that, comprising: rectangular floor (1), on two minor faces of described floor (1), symmetrical expression has 8 square openings, is provided with gap (4) between adjacent described square opening; Described floor (1) is coated with rectangular substrate (2), is just provided with square (3) on the described substrate (2) above described square opening; On described square (3), all etching has antenna element paster.
2. the compact high-isolation three of one according to claim 1 eight unit MIMO antenna for mobile phone frequently, is characterized in that: described antenna element paster comprises the first antenna element (5) and the second antenna element (6); Described square (3) comprises 4 the second squares being positioned at 4 peripheral the first squares of described substrate (2) and being positioned at described substrate (2) middle part; Described first square all posts described first antenna element (5); Described second square all posts described second antenna element (6); Described first antenna element (5) in same short side and between the second antenna element (6) below described gap (4) be broken line type; Described in same short side two between second antenna element (6) below described gap (4) be the linear pattern paralleled with described floor (1) long limit.
3. the compact high-isolation three of one according to claim 2 eight unit MIMO antenna for mobile phone frequently, it is characterized in that: the side that the described square (3) of two terminations is relative is the first side, the side that the described square (3) of two terminations is opposing is the second side, identical termination two described in the opposite face of the first square be the 3rd side, identical termination two described in the back of the first square be the 4th side, described first antenna element (5) comprises the first bonding jumper (7) being affixed on described first side, one end of described first bonding jumper (7) is connected with the one end of the second bonding jumper (8) being affixed on described 4th side, and described first bonding jumper (7) is identical with the second bonding jumper (8) width and top margin is all mutually concordant with the upper surface of described square (3), the length of described second bonding jumper (8) is less than the length of described 4th side, the other end of described first bonding jumper (7) is connected with the one end of the 3rd bonding jumper (9) being affixed on described 3rd side, the width of described 3rd bonding jumper (9) is less than the width of described first bonding jumper (7) and top margin is mutually concordant with the upper surface of described square (3), the length of described 3rd bonding jumper (9) is less than the length of described 3rd side, and the other end of described 3rd bonding jumper (9) is connected with perpendicular the 5th bonding jumper (11) be connected respectively with its 4th bonding jumper (10) connected horizontally, described 4th bonding jumper (10) is identical with the length of described 3rd side with the length sum of the 3rd bonding jumper (9), the end of described 4th bonding jumper (10) is connected with the 6th bonding jumper (12) top of Vertical dimension, the length of described 6th bonding jumper (12) is identical with the height of described square (3), the end of described 6th bonding jumper (12) is connected with the one end of the 7th bonding jumper (13) be positioned on described substrate (2), and the end of described 7th bonding jumper (13) is provided with the first short dot (14), the length of described 5th bonding jumper (11) is less than the height of described square (3), the bottom of described 5th bonding jumper (11) is connected with one end of the 8th bonding jumper (15) to described second side surface direction horizontal-extending, the other end of described 8th bonding jumper (15) is connected with its 9th perpendicular bonding jumper (16), the end of described 9th bonding jumper (16) is mutually concordant with the bottom of described 3rd side, described 9th bonding jumper (16) is connected with the tenth bonding jumper (17) one end that described 7th bonding jumper (13) parallels, the other end of described tenth bonding jumper (17) is with perpendicular and be connected to the 11 bonding jumper (18) that described first side surface direction extends, the end of described 11 bonding jumper (18) is provided with the first distributing point (19), the other end of described 3rd bonding jumper (9) is also connected with one end of the 12 bonding jumper (20), perpendicular with described 3rd bonding jumper (9) on the upper surface that described 12 bonding jumper (20) is arranged at described square (3), the other end of described 12 bonding jumper (20) is connected with one end of the 13 C-shaped bonding jumper (21), and the opening of described 13 bonding jumper (21) is towards described second side, article body of described 12 bonding jumper (20) is connected with one end of the 14 bonding jumper (22) is vertical, and described 13 bonding jumper (21) and the 14 bonding jumper (22) lay respectively at the both sides of described 12 bonding jumper (20), the other end of described 14 bonding jumper (22) is connected with one end of the 15 perpendicular bonding jumper (23), the other end of described 15 bonding jumper (23) is connected with one end of the 16 C-shaped bonding jumper (24), and the opening of described 16 bonding jumper (24) is towards described second side and to be positioned at described 13 bonding jumper (21) inner, described 13 bonding jumper (21), the 14 bonding jumper (22), the 15 bonding jumper (23) and the 16 bonding jumper (24) are all positioned at the upper surface of described square (3).
4. the compact high-isolation three of one according to claim 3 eight unit MIMO antenna for mobile phone frequently, is characterized in that: identical termination two described in the opposite face of the second square be the 5th side, identical termination two described in the back of the second square be the 6th side, described second antenna element (6) comprises the 17 bonding jumper (25) be affixed on described 5th side, the top margin of described 17 bonding jumper (25) is mutually concordant with the upper surface of described second square, the length of described 17 bonding jumper (25) is identical with the length of described 5th side, the width of described 17 bonding jumper (25) is less than the height of described second square, one end of described 17 bonding jumper (25) is connected with the one end of the 18 bonding jumper (26) being affixed on described second side, the length of described 18 bonding jumper (26) is less than the length of described second side, the width of described 18 bonding jumper (26) is less than the width of described 17 bonding jumper (25), the other end of described 17 bonding jumper (25) is connected with the one end of the 19 bonding jumper (27) being affixed on described first side, and the other end of described 19 bonding jumper (27) is connected with perpendicular the 21 bonding jumper (29) be connected respectively with its 20 bonding jumper (28) connected horizontally, described 20 bonding jumper (28) is identical with the length of described first side with the length sum of the 19 bonding jumper (27), the described end of the 20 bonding jumper (28) is connected with the 22 bonding jumper (30) top of Vertical dimension, the length of described 22 bonding jumper (30) is identical with the height of described square (3), the end of described 22 bonding jumper (30) is connected with the one end of the 23 bonding jumper (31) be positioned on described substrate (2), and the end of described 23 bonding jumper (31) is provided with the second short dot (32), the length of described 21 bonding jumper (29) is identical with the height of described square (3), the bottom of described 21 bonding jumper (28) with to the 5th side surface direction horizontal-extending and the one end being affixed on the 24 bonding jumper (33) of described first side be connected, the other end of described 24 bonding jumper (33) is connected with the one end of the 25 bonding jumper (34) paralleled with described 23 bonding jumper (31), and the end of described 25 bonding jumper (34) is provided with the second distributing point (35), the other end of described 19 bonding jumper (27) is also connected with the one end of the 26 bonding jumper (36) being affixed on described second square upper surface is perpendicular, the other end of described 26 bonding jumper (36) is connected with the middle part of the 27 bonding jumper (37), described 27 bonding jumper (37) is connected with one end of the 28 bonding jumper (38) of inverted L shape near one end of described 5th side, and the opening of described inverted L shape is towards described 6th side, described 27 bonding jumper (37) is connected with one end of the 29 bonding jumper (39) is vertical near one end of described 6th side, the other end of described 29 bonding jumper (39) is connected with one end of the 30 bonding jumper (40) to described 5th side surface direction horizontal-extending, the described other end of the 30 bonding jumper (40) is connected with one end of the 31 bonding jumper (41) of inverted L shape, and described 31 bonding jumper (41) opening is towards described 6th side, described 31 bonding jumper (41), the 30 bonding jumper (40) and the 29 bonding jumper (39) are all positioned at described 28 bonding jumper (38) and are all affixed on described second square upper surface, the end of described 31 bonding jumper (41) is connected with the one end of the 32 bonding jumper (42) being affixed on described 6th side is vertical, the end of described 32 bonding jumper (42) be affixed on described 6th side and to the 33 bonding jumper (43) of described first side surface direction horizontal-extending one end and be connected.
5. the compact high-isolation three of one according to claim 3 eight unit MIMO antenna for mobile phone frequently, is characterized in that: the side of described 15 bonding jumper (23) is mutually concordant with described second side.
6. the compact high-isolation three of one according to claim 3 eight unit MIMO antenna for mobile phone frequently, is characterized in that: the width of described 4th bonding jumper (10) is less than the width of described 3rd bonding jumper (9) and top margin is mutually concordant with the upper surface of described square (3); Described 6th bonding jumper (12) is affixed on described 3rd side and side is mutually concordant with described second side; Described 5th bonding jumper (11), the 8th bonding jumper (15) and the 9th bonding jumper (16) are all affixed on described 3rd side; Described 4th bonding jumper (10), the 6th bonding jumper (12), the 7th bonding jumper (13), the 5th bonding jumper (11), the 8th bonding jumper (15), the 9th bonding jumper (16), the tenth bonding jumper (17), the 11 bonding jumper (18), the 12 bonding jumper (20), the 13 bonding jumper (21), 14 bonding jumpers (22), the 15 bonding jumper (23) are all identical with the width of the 16 bonding jumper (24).
7. the compact high-isolation three of one according to claim 4 eight unit MIMO antenna for mobile phone frequently, it is characterized in that: described 22 bonding jumper (30) to be positioned on described first side and mutually concordant with described 6th side, the width of described 22 bonding jumper (30) is identical with the width of described 20 bonding jumper (28) and be less than the width of described 19 bonding jumper (27), described 19 bonding jumper (27), described 18 bonding jumper (26), 21 bonding jumper (29), 23 bonding jumper (31), 24 bonding jumper (33), 25 bonding jumper (34), 26 bonding jumper (36), 28 bonding jumper (38), 29 bonding jumper (39), 30 bonding jumper (40), 31 bonding jumper (41) is all identical with the width of the 32 bonding jumper (42), the width of described 33 bonding jumper (43) is greater than the width of described 17 bonding jumper (25) and is less than the height of described square (3), and the length of described 33 bonding jumper (43) is less than the length of described 6th side, the side of described 29 bonding jumper (39) is mutually concordant with described 6th side.
8. the compact high-isolation three of one according to claim 1 eight unit MIMO antenna for mobile phone frequently, is characterized in that: the material of described floor (1) comprises copper; The material of described substrate (2) and square (3) is FR4; The thickness of described substrate (2) is 1mm.
9. the compact high-isolation three of one according to claim 1 eight unit MIMO antenna for mobile phone frequently, is characterized in that: the communications band of described antenna element paster covers the F-band of LTE, E frequency range and D frequency range.
10. the compact high-isolation three of one according to claim 1 eight unit MIMO antenna for mobile phone frequently, is characterized in that: the distance between the described antenna element paster of identical termination is less than 10mm.
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