CN203103496U - High-directivity antenna module - Google Patents
High-directivity antenna module Download PDFInfo
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- CN203103496U CN203103496U CN 201220726501 CN201220726501U CN203103496U CN 203103496 U CN203103496 U CN 203103496U CN 201220726501 CN201220726501 CN 201220726501 CN 201220726501 U CN201220726501 U CN 201220726501U CN 203103496 U CN203103496 U CN 203103496U
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Abstract
The utility model relates to a high-directivity antenna module. The high-directivity antenna module comprises a carrier, a first radiating body, a second radiating body, an electromagnetic energy gap, electrode parts, electric connection parts and a pattern layer, wherein the first radiating body and the second radiating body are arranged in the carrier; the electromagnetic energy gap is formed in the carrier and located below the second radiating body; the electrode parts are arranged on the top surface and the bottom surface of the carrier; and the electric connection parts are arranged on the two side surfaces of the carrier and electrically connected with the electrode parts, the first radiating body and the second radiating body. The antenna module provided by the utility model is electrically connected to a substrate without a clearance area, and adjusted in a matching manner by virtue of the coupling relationship that the first radiating body and the second radiating body are partially overlapped in parallel, so as to achieve the predetermined target impedance, resonant frequency, bandwidth and radiation effect; and the dimensions of antennas and the injuries of SAR (specific absorption rate) value on a human body can be effectively reduced.
Description
Technical field
The relevant a kind of antenna of the utility model refers to a kind of antenna modules of high directivity that need the headroom district especially.
Background technology
The locate mode of GPS (global positioning system), then be to utilize basic triangle positioning principle, to measure radio signal transmission time measuring distance, intersect with the satellite more than three again and compare, the satellite distance of the signal inbound pacing that converts simultaneously and time gained, built-in electronic chart carries out the orientation identification in the collocation GPS recipient.
Present automobile-used satellite navigation system except with car in the vehicular of audio-video system combination, also develop multiple GPS products such as the PDA (palmtop PC), the Notebook (notebook) that portable, mobile phone type, wherein with the consumer closely bound up no more than portable automobile GPS.There is no the car owner who is equipped with the former GPS of factory for vehicle, select the good selection really of portable automobile GPS, because except price than the tool affinity, its Portable characteristic can be used even if change trains in the future too except allowing the user can be with the use of getting off.
Traditional portable type gps system all built-in one receives the reception antenna structure of gps signal, and the reception antenna structure of this gps system is a kind of contact pin type plate aerial, shown in Figure 1A, Figure 1B.The matrix 101 that has a ceramic material on this antenna 100, these matrix 101 surfaces have a radiation sheet metal 102, the bottom surface of this matrix 101 has a grounded metal sheet 103, offer a perforation 104 on this matrix 101, radiation sheet metal 102 and the grounded metal sheet 103, this perforation 104 is passed with the signal feeding body 105 that a T shape is provided, to form the flat plate antenna structure that can be assembled on the motherboard 200.But the contact pin antenna volume of this kind is bigger, can't be installed on the compact portable electronic installation of a new generation.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of antenna modules of high directivity.
In order to achieve the above object, the utility model provides a kind of antenna modules of high directivity, comprising:
One carrier has an end face, a bottom surface and two side faces at least on it;
One first radiant body, it is located at this carrier inside neighbour end face, has a first end and the second end on this first radiant body;
One second radiant body, it is located at this carrier inside and is positioned at the end face of this first radiant body below and this carrier of neighbour, has one the 3rd end and one the 4th end on this second radiant body;
One electromagnetic band gap, it is located at this carrier inside and is positioned at this second radiant body below and neighbour's end face;
One electrode part, it is located at this end face and bottom surface;
One electrical connection section, it is located on the two side faces of this carrier, and electrically connect electrode part, the second end of first radiant body and the 4th end of second radiant body;
Wherein, the partial parallel of this first radiant body and this second radiant body is overlapping, and the 3rd end of the first end of this first radiant body and this second radiant body is opposite direction and is built up in this carrier inside, and adjusts frequency just with the parallel overlapping coupled relation of this partial radiation body.
Preferably, wherein this carrier is the ceramic substrate of multilayer or the rectangular semiconductor antenna component that glass mat is formed.
Preferably, wherein this first radiant body is the plates of being made by metal material.
Preferably, wherein this second radiant body is the plates of being made by metal material.
Preferably, wherein this electromagnetic band gap is the plates of being made by metal material.
Preferably, the member of this electrode part wherein for making by metal material, by a top electrode portion and once electrode part form, this top electrode portion is located at this end face, this bottom electrode portion is located on this bottom surface.
Preferably, wherein this electrical connection section is the member of being made by metal material, form by one first electrical connection section and one second electrical connection section, this top electrode portion of this this end face of first electrical connection section electrically connect and this bottom surface one side and this bottom electrode portion, this top electrode portion of this this end face of second electrical connection section electrically connect and this bottom surface opposite side and this bottom electrode portion.
Preferably, wherein the part of this first radiant body and this second radiant body is parallel overlapping coupled relation, with coupling area and coupling distance, and the may command or the height of adjusting frequency.
Preferably, wherein more include a patterned layer, this patterned layer is located on the end face of this carrier, and this patterned layer is model, house mark pattern.
Preferably, wherein more include a substrate, have a first metal layer and one first hollow-out parts at least one surface of this substrate, have one first contact and one second contact on the first metal layer of these first hollow-out parts both sides, one side electrically connect of this first contact has a little band feed-in line, this little band feed-in line is made up of first little band feed-in line and second little band feed-in line, respectively has second hollow-out parts of separating with this first metal layer on the both sides of this little band feed-in line.
Preferably, wherein the bottom electrode portion electrically connect of this carrier bottom surface is on first contact and second contact of this first metal layer, electrically connect has a coupling element between this first little band feed-in line and this second little band feed-in line, and electrically connect has a coaxial cable line on this second little band feed-in line.
Preferably, wherein more include a substrate, have a first metal layer and one first hollow-out parts on this substrate front side, have one first contact and one second contact on the first metal layer of these first hollow-out parts both sides, one side electrically connect of this first contact has a little band feed-in line, this little band feed-in line is made up of first little band feed-in line and second little band feed-in line, respectively has second hollow-out parts of separating with this first metal layer on the both sides of this little band feed-in line; And this substrate back has one second metal level.
Preferably, wherein the bottom electrode portion electrically connect of this carrier bottom surface is on first contact and second contact of this first metal layer, and to the 3rd hollow-out parts that should substrate back, electrically connect one coupling element between this first little band feed-in line and this second little band feed-in line, and electrically connect has a coaxial cable line on this second little band feed-in line.
The antenna modules of high directivity provided by the utility model, it utilizes radiant body parallel overlapping the carry out coupled relation and the design of reflection received signal wave structure of two antennas, can increase antenna directivity, increase antenna radiation efficiency and dwindle antenna size, can reduce the SAR value relatively, reduce the injury of aerial radiation, and do not need the headroom district human body, during in the close metal object of antenna modules or near metal object, can avoid disturbed by metal object.
Description of drawings
Figure 1A is the employed flat plate antenna structure stereoscopic of a traditional GPS schematic diagram;
Figure 1B is the employed flat plate antenna structure schematic side view of traditional GPS;
Fig. 2 is the antenna modules stereoscopic schematic diagram of the utility model high directivity;
Fig. 3 cuts open schematic diagram for the antenna modules side of the utility model high directivity;
Fig. 4 is a substrate schematic diagram of the present utility model;
Fig. 5 is antenna modules of the present utility model and substrate in combination schematic diagram;
Fig. 6 is the radiation pattern schematic diagram on the XZ plane of the utility model antenna modules when 1.575GHZ;
Fig. 7 is the radiation pattern schematic diagram on the YZ plane of the utility model antenna modules when 1.575GHZ;
Fig. 8 is the radiation pattern schematic diagram on the XY plane of the utility model antenna modules when 1.575GHZ;
Fig. 9 is that the reflection coefficient of antenna modules of the present utility model compares schematic diagram;
Figure 10 is the radiation pattern schematic diagram of the utility model antenna modules on 2.48 o'clock XZ plane;
Figure 11 is the radiation pattern schematic diagram on the YZ plane of the utility model antenna modules when 2.48GHZ;
Figure 12 is the radiation pattern schematic diagram on the XY plane of the utility model antenna modules when 2.48GHZ;
The substrate front side schematic diagram that Figure 13 has the headroom district for the utility model antenna modules is used in;
The substrate back schematic diagram that Figure 14 has the headroom district for the utility model antenna modules is used in;
Figure 15 is used in the headroom district for the utility model antenna modules and does not have the reflection coefficient comparison schematic diagram in headroom district.
[main element symbol description]
Carrier-1; Antenna modules-10; Antenna-100; Matrix-101; Radiation sheet metal-102; Grounded metal sheet-103; Perforation-104; Signal feeding body-105; End face-11; Bottom surface-12; Side-13;
First radiant body-2; Motherboard-200; First end-21; The second end-22;
Second radiant body-3; The 3rd end-31; The 4th end-32;
Electromagnetic band gap-4;
Electrode part-5; Top electrode portion-51; Bottom electrode portion-52;
Electrical connection section-6; First electrical connection section-61; Second electrical connection section-62;
Patterned layer-7;
Substrate-8; The first metal layer-81; First contact-811; Second contact-812; First hollow-out parts-82; Little band feed-in line-83; First little band feed-in line-831; Second little band feed-in line-832; Second hollow-out parts-84; Second metal level-85; The 3rd hollow-out parts-86.
Embodiment
Relevant technology contents of the present utility model and detailed description, existing conjunction with figs. is described as follows.
See also Fig. 2, Fig. 3, for antenna modules stereoscopic, the side of high directivity of the present utility model are cutd open schematic diagram.As shown in the figure: the antenna modules 10 of high directivity of the present utility model comprises: a carrier 1, one first radiant body 2, one second radiant body 3, an electromagnetic band gap 4, an electrode part 5, an electrical connection section 6 and a patterned layer 7.
This carrier 1 is the rectangular semiconductor antenna component of being made up of the ceramic substrate or the glass mat of multilayer, has an end face 11, a bottom surface 12 and two side faces 13 on it at least.
This first radiant body 2 is the plates of being made by metal material, and it is located at this carrier 1 inner neighbour's end face 11, and has a first end 21 and a second end 22 on this first radiant body 2.
This second radiant body 3 is the plates of being made by metal material, the end face 11 that it is located at this carrier 1 inside and is positioned at these first radiant body, 2 belows and this carrier 1 of neighbour.Have one the 3rd end 31 and one the 4th end 32 on this second radiant body 3.This first radiant body 2 is parallel overlapping coupled relation with the partial radiation body of this second radiant body 3, and the first end 21 that makes this first radiant body 2 is with the 3rd end 31 of this second radiant body 3 and is built up in this carrier 1 inside in the other direction.
This electromagnetic band gap (Electromagnetic Band-gap, EBG) 4, be the plates of making by metal material, it is located at this carrier 1 inside and is positioned at this second radiant body, 3 belows and neighbour's end face 11.This electromagnetic band gap 4 can reflect received signal and receive for this first radiant body 2 and this second radiant body 3, can increase antenna directivity, increases antenna radiation efficiency and dwindles antenna size, can reduce the SAR value relatively, reduces the injury of aerial radiation to human body.
This electrode part 5 is the member of being made by metal material, its by a top electrode portion 51 and once electrode part 52 form.This top electrode portion 51 is located at the end face 11 of this carrier 1, and this bottom electrode portion 52 is located on the bottom surface 12 of this carrier 1, this bottom electrode portion 52 for antenna modules can surface adhering on the substrate (not shown).
This electrical connection section 6 is the member of being made by metal material, and it is made up of one first electrical connection section 61 and one second electrical connection section 62, and is located on the two side faces 13 of this carrier 1.This top electrode portion 51 of these first electrical connection section, 61 electrically connect right edge, the 4th end 32 of second radiant body 3 and the bottom electrode portion 52 of right edge.Top electrode portion 51, the second end 22 of first radiant body 2 and bottom electrode portion 52 electrically connects on limit, left side on this limit, second electrical connection section, 62 electrically connects left side.
This patterned layer 7, it is located on the end face 11 of this carrier 1, model, house mark pattern that this patterned layer 7 can printed antenna.
The overlapping coupled relation of partial parallel of above-mentioned this first radiant body 2 and this second radiant body 3, be coupling area and coupling distance relation with radiant body, form the two coupling capacitances modulation that mates with each other and (come control frequency height as adjusting two coupling capacitance sizes, antenna applicable to 2.4GHZ or 1.575GHZ), thereby reach predetermined target impedance, resonance frequency, frequency range and radiation effect, and can effectively dwindle antenna size.
See also Fig. 4, Fig. 5, be substrate of the present utility model and antenna modules combination front and schematic rear view.As shown in the figure: the antenna modules 10 of high directivity of the present utility model is done explanation with these antenna modules 10 electrically connects on the substrate 8 in a no headroom district when utilization.
Have a first metal layer 81 and one first hollow-out parts 82 on these substrate 8 fronts, have one first contact 811 and one second contact 812 on the first metal layer 81 of these first hollow-out parts, 82 both sides.One side electrically connect of this first contact 811 has a little band feed-in line 83, this little band feed-in line 83 is made up of first little band feed-in line 831 and second little band feed-in line 832, respectively has one second hollow-out parts 84 on the both sides of this little band feed-in line 83 and separates with this first metal layer 81.In addition, the back side of this substrate 8 has one second metal level 85, no headroom district on this second metal level 85.
When antenna modules 10 and these substrate 8 electrically connects, bottom electrode portion 52 electrically connects in right side and left side are on first contact 811 and second contact 812 of this first metal layer 81 on the bottom surface 11 of the carrier 1 of this antenna modules 10.Electrically connect one coupling element (not shown) between this first little band feed-in line 831 and this second little band feed-in line 832, and electrically connect has a coaxial cable line (not shown) on second little band feed-in line 832.
After antenna modules 10 received signals, reach on this little band feed-in line 83 through this second contact 812, the coaxial cable line reaches on this coaxial cable line (not shown) by this little band feed-in line 83, so that can reach signal on the motherboard of this device (not shown).
See also Fig. 6, be the radiation pattern schematic diagram on the XZ plane of the utility model antenna modules when the 1.575GHZ.As shown in the figure: when frequency is 1.575GHZ, main lobe size (Main lobe magnitude) is at 3.3dBi, main lobe direction (Main lobe direction) is at 2.0deg, angular breadth (Angular width) is 93.0 deg when 3dB, and (side lobe level is at-3.0dB for the accurate position of minor lobe.
See also Fig. 7, be the radiation pattern schematic diagram on the YZ plane of the utility model antenna modules when the 1.575GHZ.As shown in the figure: when frequency was 1.575GHZ, main lobe size (Main lobe magnitude) was at 3.6dBi, and main lobe direction (Main lobe direction) is at 26.0deg, and angular breadth (Angular width) is 222.8 deg when 3dB.
See also Fig. 8, be the radiation pattern schematic diagram on the XY plane of the utility model antenna modules when the 1.575GHZ.As shown in the figure: when frequency is 1.575GHZ, main lobe size (Main lobe magnitude) is at 2.7dBi, main lobe direction (Main lobe direction) is at 273.0deg, angular breadth (Angular width) is 116.2 deg when 3dB, and the accurate position of minor lobe (side lobe level) is at-4.5dB.
See also Fig. 9, be the reflection coefficient comparison schematic diagram of the utility model antenna modules.As shown in the figure: the S1 frequency when 1.456GHZ is-13.438dB, the S2 frequency when 1.4749GHZ is-12.416dB, the S3 frequency when 1.4953GHZ is-12.096dB, the S4 frequency when 1.5278GHZ is-11.842dB, the S5 frequency is-10.974dB that the S6 frequency is-10.85dB that the S7 frequency is-10.491dB when 1.5957GHZ when 1.626GHZ when 1.5814GHZ, the S8 frequency is-9.9802dB that the S9 frequency is-9.6347dB when 1.6579GHZ when 1.6925GHZ.
See also Figure 10, be the radiation pattern schematic diagram of the utility model antenna modules on 2.48 o'clock XZ plane.As shown in the figure: when frequency was 2.48GHZ, main lobe size (Main lobe magnitude) was at 1.9dBi, and main lobe direction (Main lobe direction) is at 19.0deg, and angular breadth (Angular width) is 180.0 deg when 3dB.
See also Figure 11, be the radiation pattern schematic diagram on the YZ plane of the utility model antenna modules when the 2.48GHZ.As shown in the figure: when frequency is 2.48GHZ, main lobe size (Main lobe magnitude) is at 1.5dBi, main lobe direction (Main lobe direction) is at 4.0deg, angular breadth (Angular width) is 151.6 deg when 3dB, and the accurate position of minor lobe (side lobe level) is at-4.2dB.
See also Figure 12, be the radiation pattern schematic diagram on the XY plane of antenna modules of the present utility model when the 2.4GHZ.As shown in the figure: when frequency is 2.48GHZ, main lobe size (Main lobe magnitude) is at 0.6dBi, main lobe direction (Main lobe direction) is at 327.0deg, angular breadth (Angular width) is 216.5deg when 3dB, and the accurate position of minor lobe (side lobe level) is at-4.2dB.
See also Figure 13, Figure 14, Figure 15, for the utility model antenna modules is used in relatively schematic diagram of reflection coefficient that the substrate front side with headroom district and the back side and antenna modules be used in the headroom district and do not have a headroom district.As shown in the figure: when having on one first metal covering 81 in the front that antenna modules 10 is electrically connected at this substrate 8,10 pairs of this antenna modules should substrate 8 to have one second metal level 85 and one the 3rd hollow-out parts, 86, the three hollow-out parts 86 be headroom district and to should antenna modules 10 at the back side.
Frequency influence to antenna when having or not the use in headroom district is very big, so the utility model has been done the comparison that has or not the headroom district.When the headroom district is of a size of 5 * 4 ㎜, frequency be 1.8822 GHZ ,-18.6dB.When the headroom district is of a size of 5 * 2 ㎜, frequency be 2.2145 GHZ ,-10.9dB.When the headroom district is of a size of 5 * 6 ㎜, frequency be 1.6465 GHZ ,-10.7dB.When no headroom district, frequency be 2.4734 GHZ ,-7.9dB.
The above is preferred embodiment of the present utility model only, is not in order to limiting scope of patent protection of the present utility model, and equivalence that other utilization the utility model patent spirit is done changes, and all should in like manner belong to scope of patent protection of the present utility model.
Claims (12)
1. the antenna modules of a high directivity is characterized in that, comprising:
One carrier has an end face, a bottom surface and two side faces at least on it;
One first radiant body, it is located at this carrier inside neighbour end face, has a first end and the second end on this first radiant body;
One second radiant body, it is located at this carrier inside and is positioned at the end face of this first radiant body below and this carrier of neighbour, has one the 3rd end and one the 4th end on this second radiant body;
One electromagnetic band gap, it is located at this carrier inside and is positioned at this second radiant body below and neighbour's end face;
One electrode part, it is located at this end face and bottom surface;
One electrical connection section, it is located on the two side faces of this carrier, and electrically connect electrode part, the second end of first radiant body and the 4th end of second radiant body;
Wherein, the partial parallel of this first radiant body and this second radiant body is overlapping, and the 3rd end of the first end of this first radiant body and this second radiant body is and is built up in the other direction this carrier inside.
2. antenna modules as claimed in claim 1 is characterized in that, this carrier is the ceramic substrate of multilayer or the rectangular semiconductor antenna component that glass mat is formed.
3. antenna modules as claimed in claim 2 is characterized in that, the plates of this first radiant body for being made by metal material.
4. antenna modules as claimed in claim 3 is characterized in that, the plates of this second radiant body for being made by metal material.
5. antenna modules as claimed in claim 4 is characterized in that, the plates of this electromagnetic band gap for being made by metal material.
6. antenna modules as claimed in claim 5 is characterized in that, the member of this electrode part for making by metal material, by a top electrode portion and once electrode part form, this top electrode portion is located at this end face, this bottom electrode portion is located on this bottom surface.
7. antenna modules as claimed in claim 6, it is characterized in that, the member of this electrical connection section for making by metal material, form by one first electrical connection section and one second electrical connection section, this top electrode portion of this this end face of first electrical connection section electrically connect and this bottom surface one side and this bottom electrode portion, this top electrode portion of this this end face of second electrical connection section electrically connect and this bottom surface opposite side and this bottom electrode portion.
8. antenna modules as claimed in claim 7 is characterized in that, more includes a patterned layer, and this patterned layer is located on the end face of this carrier.
9. antenna modules as claimed in claim 8, it is characterized in that, more include a substrate, have a first metal layer and one first hollow-out parts at least one surface of this substrate, have one first contact and one second contact on the first metal layer of these first hollow-out parts both sides, one side electrically connect of this first contact has a little band feed-in line, this little band feed-in line is made up of first little band feed-in line and second little band feed-in line, respectively has second hollow-out parts of separating with this first metal layer on the both sides of this little band feed-in line.
10. antenna modules as claimed in claim 9, it is characterized in that, the bottom electrode portion electrically connect of this carrier bottom surface is on first contact and second contact of this first metal layer, electrically connect has a coupling element between this first little band feed-in line and this second little band feed-in line, and electrically connect has a coaxial cable line on this second little band feed-in line.
11. antenna modules as claimed in claim 8, it is characterized in that, more include a substrate, have a first metal layer and one first hollow-out parts on this substrate front side, have one first contact and one second contact on the first metal layer of these first hollow-out parts both sides, one side electrically connect of this first contact has a little band feed-in line, this little band feed-in line is made up of first little band feed-in line and second little band feed-in line, respectively has second hollow-out parts of separating with this first metal layer on the both sides of this little band feed-in line; And this substrate back has one second metal level.
12. antenna modules as claimed in claim 11, it is characterized in that, the bottom electrode portion electrically connect of this carrier bottom surface is on first contact and second contact of this first metal layer, and to the 3rd hollow-out parts that should substrate back, electrically connect one coupling element between this first little band feed-in line and this second little band feed-in line, and electrically connect has a coaxial cable line on this second little band feed-in line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220726501 CN203103496U (en) | 2012-12-25 | 2012-12-25 | High-directivity antenna module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220726501 CN203103496U (en) | 2012-12-25 | 2012-12-25 | High-directivity antenna module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103496U true CN203103496U (en) | 2013-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220726501 Expired - Lifetime CN203103496U (en) | 2012-12-25 | 2012-12-25 | High-directivity antenna module |
Country Status (1)
| Country | Link |
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| CN (1) | CN203103496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904415A (en) * | 2012-12-25 | 2014-07-02 | 昌泽科技有限公司 | Antenna module with high directivity |
| CN105514593A (en) * | 2014-09-24 | 2016-04-20 | 佳邦科技股份有限公司 | Antenna structure |
-
2012
- 2012-12-25 CN CN 201220726501 patent/CN203103496U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904415A (en) * | 2012-12-25 | 2014-07-02 | 昌泽科技有限公司 | Antenna module with high directivity |
| CN105514593A (en) * | 2014-09-24 | 2016-04-20 | 佳邦科技股份有限公司 | Antenna structure |
| CN105514593B (en) * | 2014-09-24 | 2019-04-09 | 佳邦科技股份有限公司 | Antenna structure |
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Granted publication date: 20130731 |
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