CN201773944U - Antenna structure - Google Patents
Antenna structure Download PDFInfo
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- CN201773944U CN201773944U CN2010205091038U CN201020509103U CN201773944U CN 201773944 U CN201773944 U CN 201773944U CN 2010205091038 U CN2010205091038 U CN 2010205091038U CN 201020509103 U CN201020509103 U CN 201020509103U CN 201773944 U CN201773944 U CN 201773944U
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- antenna
- radiating element
- metal cover
- cover body
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Abstract
An antenna structure comprises a radiation unit and a metal cover, wherein the metal cover includes a concave face and a convex face, the concave face faces to the radiation unit, the metal cover is insulated to the radiation unit and used for being excited by the radiation unit to generate at least one resonance mode, and the metal cover includes a through hole penetrating through the concave face and the convex face. Therefore, the antenna structure can promote gains and increase bandwidth, or has multiple modes.
Description
Technical field
The relevant a kind of antenna structure of the utility model, particularly a kind of antenna structure that increases the radiation effect of integrated antenna.
Background technology
The development of wireless communication technique, facilitate many wireless communication apparatus, as mobile phone, mobile computer, PDA(Personal Digital Assistant), gps satellite navigation system, E-book reader (E-book reader) etc., except that having wireless communication function, also can see through concealed antenna and replace exposed antenna in the past, make wireless communication apparatus having under the good wireless communication quality, more can take into account attractive in appearance and frivolous industrial design.
So, pursue again and again at electronic product under the appearance design of tool design texture, often wish its shell is made with metal material, or plate metal level on shell, this but can impact the wireless telecommunications quality.Because the shielding action of metal will intercept the electromagnetic wave transmission, cause the antenna signal not good.
Please refer to shown in Figure 1ly, be the schematic diagram of known wireless communication apparatus 1a.Traditionally, in order to improve said circumstances, shell 12a must have nonmetal 122a and metal part 124a.Nonmetal 122a can be made of non-metallic materials such as plastics, carbon fibers, use and make electromagnetic wave can pass through nonmetal 122a, and the antenna (not being shown among the figure) that is set in the shell 12a receives, or the electromagnetic wave of aerial radiation can be radiate by nonmetal 122a.
Please refer to shown in Figure 2ly, disclose No. 20100141535 schematic diagram for U.S. patent application case.Its utilization is configured in the sheet metal 24a on the shell 22a of electronic installation 2a, promotes field pattern and the average gain of the antenna 26a in the shell 22a.So, it is excessively overlapping with antenna 26a that sheet metal 24a must avoid, otherwise can't reach the effect that promotes antenna gain, causes aforesaid shielding action on the contrary.
The utility model content
In view of this, main purpose of the present utility model is to propose a kind of antenna structure, uses and promotes gain, increases frequency range and can have multi-modal.Secondary objective of the present utility model is to propose a kind of antenna structure, and it has the advantage that part is few, be easy to be provided with, and can reduce the cost and the manufacturing time of product.
For reaching above-mentioned purpose, the utility model provides a kind of antenna structure, comprises: radiating element; And a metal cover body, comprising concave surface and convex surface, concave surface is towards radiating element, and metal cover body and radiating element insulate, and in order to be excited by radiating element and to produce at least one resonance mode, the metal cover body comprises holes, between concave surface and convex surface.
Preferably, this antenna structure more comprises a substrate, and this radiating element is arranged on this substrate, and this metal cover body is connected to this substrate.
Preferably, this radiating element is selected from the group that is made up of microstrip antenna, slot antenna, unipole antenna, dipole antenna, plate aerial, loop antenna, helical antenna, coaxial antenna, antenna component and array antenna.
Preferably, this holes orthographic projection is to a Projection Division of this radiating element, this radiating element of overlapping at least.
The antenna structure that the utility model proposes can promote the gain of radiating element, and sees through the solid design of metal cover body, and the metal cover body can be directly connected on the substrate, need not to see through other fixture, can reduce manufacturing cost and production time.
Relevant preferred embodiment of the present utility model and effect thereof, cooperate now graphic explanation as after.
Description of drawings
Fig. 1 is the schematic diagram of known wireless communication apparatus.
Fig. 2 discloses No. 20100141535 schematic diagram for U.S. patent application case.
Fig. 3 is the schematic diagram of the utility model first embodiment.
Fig. 4 is the end view of the utility model first embodiment.
Fig. 5 is the gain comparison diagram of the utility model first embodiment.
Fig. 6 is the feedback loss comparison diagram of the utility model first embodiment.
Fig. 7 is the schematic diagram of the utility model second embodiment.
Fig. 8 is the schematic diagram of the utility model the 3rd embodiment.
The primary clustering symbol description
12: radiating element 1a: wireless communication apparatus
14: metal cover body 12a: shell
142: concave surface 122a: nonmetal portion
144: convex surface 124a: metal part
146: holes 2a: electronic installation
148: Projection Division 22a: shell
16: substrate 24a: sheet metal
26a: antenna
Embodiment
Below enumerate specific embodiment describing content of the present utility model in detail, and with graphic as aid illustration.The symbol of mentioning in the explanation is with reference to diagrammatical symbol.
Please refer to Fig. 3 and shown in Figure 4, be schematic diagram and the end view of the utility model first embodiment.A kind of antenna structure comprises radiating element 12 and metal cover body 14.Radiating element 12 comprises feeding portion and Department of Radiation (not being shown among the figure).Feeding portion is in order to the feed-in electric signal.Department of Radiation is electrically connected feeding portion, sends the electromagnetic wave signal in order to the conversion electric signal; Perhaps, after Department of Radiation received the electromagnetic wave signal, feeding portion was changed the electromagnetic wave signal and output electric signal.In this, radiating element 12 more can comprise grounding parts (not being shown among the figure), is electrically connected Department of Radiation, in order to be electrically connected to the accurate position of ground connection.Radiating element 12 can be the group of microstrip antenna (microstrip antenna), slot antenna (slot antenna), unipole antenna (monopole antenna), dipole antenna (dipole antenna), plate aerial (patch antenna), loop antenna (loop antenna), helical antenna (spiral antenna), coaxial antenna (coaxial antenna), antenna component (chip antenna), array antenna (array antenna) or its composition.
When radiating element 12 radiated electromagnetic wave signals, the metal cover body 14 coupled electromagnetic wave signals of tool holes 146, and be big swept area by it than radiating element 12, the electromagnetic wave signal is sent, therefore, the gain of radiating element 12 can be used increase.On the other hand, when receiving the electromagnetic wave signal, metal cover body 14 provides bigger area to receive the electromagnetic wave signal.Therefore the communication quality of radiating element 12 can obtain by metal cover body 14 to promote.Metal cover body 14 is coupled to radiating element 12 with the electromagnetic wave signal, and is converted to electric signal.In this, radiating element 12 and the holes 146 of metal cover body 14 distance of need being separated by avoids the two to be separated by too far away and can't the coupled electromagnetic wave signal; Perhaps, it is too near to be separated by, and makes the electromagnetic wave signal strength that gives off exceed statutory standards.
In this, the shape of holes 146 can be geometries such as circle, square, also can be irregularly shaped, as being designed to the external form of trade mark.And holes 146 can not be connected with the edge of metal cover body 14, that is holes 146 is required to be the hole of periphery seal.Holes 146 orthographic projections form Projection Division 148 to radiating element 12, and it is overlapping to small part and radiating element 12.
Please refer to shown in Figure 5ly, be the gain comparison diagram of the utility model first embodiment, is with only radiating element 12 and radiating element 12 cooperate the gain diagram of no holes metal cover body to compare.As seen, though in 2GHz to 4GHz frequency range, under 2.2GHz～2.9GHz and 3.6GHz～4GHz frequency range, the metal cover body of no holes is helpful to gaining, and under 2.9GHz～3.6GHz frequency range, gain but significantly reduces.So, the antenna structure of the utility model embodiment proposition can obviously improve the gain of antenna under 2GHz to 4GHz frequency range.This shows that the antenna structure that the utility model proposes has ability to communicate preferably really.
Please refer to shown in Figure 6ly, be feedback loss (Return loss) comparison diagram of the utility model first embodiment, is that only radiating element 12 and radiating element 12 cooperate the feedback loss figure of no holes metal cover body to compare.Though as seen set up the metal cover body of no holes in radiating element 12 tops, can reduce the feedback loss in 2.8GHz～3GHz frequency range, so all more only the feedback of radiating element 12 loss is high in other frequency range.Review, the antenna structure that the utility model embodiment proposes all can reduce the feedback loss in 3.7GHz～4GHz frequency range, especially when the 3.05GHz frequency, the feedback loss can be reduced to-22dB.Prove that once more the antenna structure that the utility model proposes has ability to communicate preferably really.
Compared to tailored radiation unit 12 only, after adding metal cover body 14, produce capacity effect between radiating element 12 and the metal cover body 14, and obtain preferable impedance matching, and produce at least one resonance mode, and its resonance mode can provide bigger frequency range and gain.
In this, the employed radiating element of Fig. 5 and Fig. 6 12 is identical.In order to spell out the effect of the antenna structure that the utility model proposes, compared to radiating element 12 only or on radiating element 12, cooperate the difference of a metal cover body, it is that example measures that radiating element 12 is adopted a microstrip antenna, and the radiating element 12 of right the utility model indication is not as limit.
Please refer to shown in Figure 7ly, be the schematic diagram of the utility model second embodiment.Antenna structure as the aforementioned, antenna structure more can comprise substrate 16, and radiating element 12 is arranged on the substrate 16.Metal cover body 14 can be connected to substrate 16, but with substrate 16 or substrate 16 on other electrical signal line electrical isolation, thereby keep the distance of holes 146 and radiating element 12.In this, modes such as metal cover body 14 can weld with substrate 16, bonding, bolt interlocking are connected.
Please refer to shown in Figure 8ly, be the schematic diagram of the utility model the 3rd embodiment.As the antenna structure of the utility model first embodiment, the metal cover body 14 of the utility model embodiment also comprises concave surface 142 and convex surface 144, for example, can be parabola bar shape (Cylindrical paraboloid).Concave surface 142 is towards radiating element 12, and metal cover body 14 also comprises holes 146, between concave surface 142 and convex surface 144.In addition, the antenna structure of the utility model embodiment also can more comprise substrate 16 as described in the utility model second embodiment.
In sum, the antenna structure that the utility model proposes can promote the gain of radiating element 12 really.And seeing through the solid design of metal cover body 14, metal cover body 14 can be directly connected on the substrate 16, need not to see through other fixture (as bracing frame), can reduce manufacturing cost and production time really.
Though technology contents of the present utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; anyly have the knack of this skill person; do not breaking away from spirit of the present utility model a little change and the retouching done; all should be covered by in the category of the present utility model, therefore protection range of the present utility model is as the criterion when looking the claim person of defining.
Claims (4)
1. an antenna structure is characterized in that, comprises:
One radiating element; And
One metal cover body comprises a concave surface and a convex surface, and this concave surface is towards this radiating element, this metal cover body and the insulation of this radiating element, in order to be excited by this radiating element and to produce at least one resonance mode, this metal cover body comprises a holes, between this concave surface and this convex surface.
2. antenna structure as claimed in claim 1 is characterized in that: more comprise a substrate, this radiating element is arranged on this substrate, and this metal cover body is connected to this substrate.
3. antenna structure as claimed in claim 1 is characterized in that: this radiating element is selected from the group that is made up of microstrip antenna, slot antenna, unipole antenna, dipole antenna, plate aerial, loop antenna, helical antenna, coaxial antenna, antenna component and array antenna.
4. antenna structure as claimed in claim 1 is characterized in that: this holes orthographic projection is to a Projection Division of this radiating element, this radiating element of overlapping at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205091038U CN201773944U (en) | 2010-08-25 | 2010-08-25 | Antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205091038U CN201773944U (en) | 2010-08-25 | 2010-08-25 | Antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773944U true CN201773944U (en) | 2011-03-23 |
Family
ID=43753786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205091038U Expired - Fee Related CN201773944U (en) | 2010-08-25 | 2010-08-25 | Antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773944U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509881A (en) * | 2011-11-18 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Electronic device with multiple antennae |
| CN103928746A (en) * | 2013-01-11 | 2014-07-16 | 禾邦电子(苏州)有限公司 | Chip antenna device and purpose thereof, and electronic product provided with the chip antenna device |
| CN104282982A (en) * | 2014-10-20 | 2015-01-14 | 国网河南省电力公司漯河供电公司 | Computer battery plate with built-tin antenna |
| CN104852135A (en) * | 2014-02-17 | 2015-08-19 | 佳邦科技股份有限公司 | Antenna structure, electronic device, and design method for antenna structure |
-
2010
- 2010-08-25 CN CN2010205091038U patent/CN201773944U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509881A (en) * | 2011-11-18 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Electronic device with multiple antennae |
| CN103928746A (en) * | 2013-01-11 | 2014-07-16 | 禾邦电子(苏州)有限公司 | Chip antenna device and purpose thereof, and electronic product provided with the chip antenna device |
| CN104852135A (en) * | 2014-02-17 | 2015-08-19 | 佳邦科技股份有限公司 | Antenna structure, electronic device, and design method for antenna structure |
| CN104852135B (en) * | 2014-02-17 | 2018-03-23 | 佳邦科技股份有限公司 | The design method of antenna structure, electronic installation and antenna structure |
| CN104282982A (en) * | 2014-10-20 | 2015-01-14 | 国网河南省电力公司漯河供电公司 | Computer battery plate with built-tin antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20170825 |