CN201773939U - Antenna structure - Google Patents
Antenna structure Download PDFInfo
- Publication number
- CN201773939U CN201773939U CN2010205091042U CN201020509104U CN201773939U CN 201773939 U CN201773939 U CN 201773939U CN 2010205091042 U CN2010205091042 U CN 2010205091042U CN 201020509104 U CN201020509104 U CN 201020509104U CN 201773939 U CN201773939 U CN 201773939U
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- antenna
- radiation assembly
- metallic plate
- radiation
- antenna structure
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Abstract
An antenna structure comprises a radiation component and a metal plate. The radiation component comprises a feed portion and a radiation portion. The feed portion is used for transmitting electric signals. The radiation portion is electrically connected with the feed portion and used for converting the electric signals into electromagnetic wave signals or converting the electromagnetic wave signals into the electric signals. The metal plate and the radiation component are spaced at an interval, the metal plate is insulated from the radiation component, is excited by the radiation component to generate at least one resonance mode and comprises a hole, and the hole runs through the metal plate. The antenna structure can improve gain and increase bandwidth or have 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.At present, 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 to promote gain, increases frequency range or has multi-modal.Secondary objective of the present utility model is to propose a kind of antenna structure, when being applied to the shell of electronic installation, can make electronic installation have metal shell attractive in appearance, but can not reduce the gain of antenna.
For reaching above-mentioned purpose, the utility model provides a kind of antenna structure, comprises: radiation assembly and metallic plate, and radiation assembly comprises: feeding portion, in order to transmit electric signal; And Department of Radiation, be electrically connected feeding portion, be that electromagnetic wave signal or conversion electromagnetic wave signal are electric signal in order to the conversion electric signal; Metallic plate and the radiation assembly distance of being separated by, and with the radiation assembly insulation, in order to be excited by radiation assembly and to produce at least one resonance mode, metallic plate comprises holes, runs through metallic plate.
Preferably, this antenna structure more comprises a fixture, connect at least this radiation assembly and this metallic plate one of them, in order to keep this metallic plate and this radiation assembly this distance of being separated by.
Preferably, this radiation assembly 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 radiation assembly, this radiation assembly of overlapping at least.
Preferably, this radiation assembly more comprises a grounding parts, and an end is electrically connected this Department of Radiation, and the other end is electrically connected to the accurate position of ground connection.
Preferably, this metallic plate extends at least one side.
By said structure, the utility model can improve the ability to communicate of radiation assembly, and metallic plate can be applied to the shell of electronic installation, improves the freedom of appearance design of electronic installation.
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 end view of the utility model second embodiment.
Fig. 8 is the schematic diagram of the utility model the 3rd embodiment.
The primary clustering symbol description
1: antenna structure 1a: wireless communication apparatus
12: radiation assembly 12a: shell
121: feeding portion 122a: nonmetal portion
123: Department of Radiation 124a: metal part
14: metallic plate 2a: electronic installation
142: holes 22a: shell
144: Projection Division 24a: sheet metal
146: side 26a: antenna
2: mobile computer d: distance
22: back of the body cover housing
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 respectively schematic diagram and the end view of the utility model first embodiment.A kind of antenna structure 1 comprises radiation assembly 12 and metallic plate 14.Radiation assembly 12 comprises feeding portion 121 and Department of Radiation 123 in order to send or to receive the electromagnetic wave signal.Feeding portion 121 is in order to transmit electric signal.Department of Radiation 123 is electrically connected feeding portion 121, is that electromagnetic wave signal or conversion electromagnetic wave signal are electric signal in order to the conversion electric signal.Radiation assembly more can comprise grounding parts (not being shown among the figure), and an end is electrically connected Department of Radiation 123, and the other end is electrically connected to the accurate position of ground connection.
In this, radiation assembly 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 radiation assembly 12 radiated electromagnetic wave signals, the metallic plate 14 coupled electromagnetic wave signals of tool holes 142, and be big swept area by it than radiation assembly 12, the electromagnetic wave signal is sent, therefore, the gain of radiation assembly 12 can be used increase, and communication quality also can obtain to promote.On the other hand, when receiving the electromagnetic wave signal, metallic plate 14 provides bigger area receiving the electromagnetic wave signal, so the signal quality can obtain to promote.Metallic plate 14 is coupled to radiation assembly 12 with the electromagnetic wave signal, and is converted to electric signal.In this, radiation assembly 12 needs standoff distance d with metallic plate 14, 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 142 can be geometries such as circle, square, also can be irregularly shaped, as being designed to the external form of trade mark.And holes 142 can not be connected with the edge of metallic plate 14, that is holes 142 is required to be the hole of periphery seal.Holes 142 orthographic projections form Projection Division 144 to radiation assembly 12, and it is overlapping to small part and radiation assembly 12.
In addition, antenna structure 1 more comprises fixture (not being shown among the figure), connect at least radiation assembly 12 and metallic plate 14 one of them, in order to keep metallic plate 14 and radiation assembly 12 standoff distance d.In this, fixture can be that bracing frame, double-screw bolt, screw etc. can be supported and the fixing assembly of radiation assembly 12 or metallic plate 14.Person very when antenna structure 1 is applied to electronic installation, can be connected to metallic plate 14 on the shell of electronic installation or becomes the part of shell.The material of metallic plate 14 can be magnesium, aluminium, stainless steel, copper or its alloy.
Please refer to shown in Figure 5ly, be the gain comparison diagram of the utility model first embodiment, is to cooperate the gain diagram of the metallic plate of no holes to compare with radiation assembly 12 and radiation assembly 12.As seen, though in 2GHz to 4GHz frequency range, under 2.2GHz～2.9GHz and 3.6GHz～4GHz frequency range, the metallic plate of no holes is helpful to gaining, and under 2.9GHz～3.6GHz frequency range, gain but significantly reduces.So, the antenna structure 1 that the utility model embodiment proposes can obviously improve gain under 2GHz to 4GHz frequency range.This shows that the antenna structure 1 that the utility model proposes has ability to communicate preferably really.
Please refer to shown in Figure 6ly, for the feedback of the utility model first embodiment loss (Return loss) comparison diagram, is with only radiation assembly 12 and radiation assembly 12 cooperate the feedback loss figure of no holes metallic plate to compare.Though as seen set up the metallic plate of no holes in radiation assembly 12 tops, can reduce the feedback loss in 2.8GHz～3GHz frequency range, so all more only the feedback of radiation assembly 12 loss is high in other frequency range.Review, the antenna structure 1 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 1 that the utility model proposes has ability to communicate preferably really.
Compared to tailored radiation assembly 12 only, after adding metallic plate 14, produce capacity effect between radiation assembly 12 and the metallic plate 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 radiation assembly of Fig. 5 and Fig. 6 12 is identical.In order to spell out the effect of the antenna structure 1 that the utility model proposes, compared to radiation assembly 12 only or on radiation assembly 12, cooperate the difference of a metallic plate, it is that example measures that radiation assembly 12 is adopted a microstrip antenna, and the radiation assembly 12 of right the utility model indication is not as limit.
Please refer to shown in Figure 7ly, be the end view of the utility model second embodiment.Antenna structure 1 as the aforementioned, more extensible at least one side 146 of metallic plate 14, and for example, two side faces 146 is extended in the subtend both sides of metallic plate 14, is " U " font by side-looking.Perhaps, also can only extend a side 146, and be " L " font (not being shown among the figure) in side-looking.And metallic plate 14 can be geometrical pattern or other irregular figures such as rectangle, circle.The right above-mentioned shape of enumerating metallic plate is not in order to limit the utility model only for for example.
Please refer to shown in Figure 8ly, be the schematic diagram of the utility model the 3rd embodiment.Be to be example, illustrate how to use the antenna structure 1 that the utility model proposes with mobile computer 2.Metallic plate 14 can be the some of the back of the body cover housing 22 of mobile computer 2, and back of the body cover housing 22 can be plastics, carbon fiber or magnadure material, and metallic plate 14 can chimeric mode be connected with back of the body cover housing 22.The antenna of mobile computer 2 (not being shown among the figure) designs usually in back of the body cover housing 22 inside of screen top, and metallic plate 14 is arranged at the antenna top, and combines with back of the body cover housing 22, not only promotes the gain of antenna, also takes into account the external form of product.In this, metallic plate 14 also can be one of the forming with back of the body cover housing 22.In view of the above, can solve the known problem that can't make the shell of wireless communication apparatus with metal material.
In sum, the utility model can see through the metallic plate 14 with holes 142 really, improves the ability to communicate of radiation assembly 12, and metallic plate 14 can be applied to the shell of electronic installation, improves the freedom of appearance design of electronic installation.
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 (6)
1. an antenna structure is characterized in that, comprises:
One radiation assembly comprises:
One feeding portion is in order to transmit an electric signal; And
One Department of Radiation is electrically connected this feeding portion, is an electromagnetic wave signal or to change this electromagnetic wave signal be this electric signal in order to change this electric signal; And
One metallic plate, with this radiation assembly distance of being separated by, and with this radiation assembly insulation, in order to be excited by this radiation assembly and to produce at least one resonance mode, this metallic plate comprises a holes, runs through this metallic plate.
2. antenna structure as claimed in claim 1 is characterized in that: more comprise a fixture, connect at least this radiation assembly and this metallic plate one of them, in order to keep this metallic plate and this radiation assembly this distance of being separated by.
3. antenna structure as claimed in claim 1 is characterized in that: this radiation assembly 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 radiation assembly, this radiation assembly of overlapping at least.
5. antenna structure as claimed in claim 1 is characterized in that: this radiation assembly more comprises a grounding parts, and an end is electrically connected this Department of Radiation, and the other end is electrically connected to the accurate position of ground connection.
6. antenna structure as claimed in claim 1 is characterized in that: this metallic plate extends at least one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205091042U CN201773939U (en) | 2010-08-25 | 2010-08-25 | Antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205091042U CN201773939U (en) | 2010-08-25 | 2010-08-25 | Antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773939U true CN201773939U (en) | 2011-03-23 |
Family
ID=43753781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205091042U Expired - Fee Related CN201773939U (en) | 2010-08-25 | 2010-08-25 | Antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773939U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106537477A (en) * | 2014-05-30 | 2017-03-22 | 卢特龙电子公司 | Wireless control device |
| CN111435763A (en) * | 2019-01-11 | 2020-07-21 | 联发科技股份有限公司 | Antenna system and associated radiation module |
-
2010
- 2010-08-25 CN CN2010205091042U patent/CN201773939U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106537477A (en) * | 2014-05-30 | 2017-03-22 | 卢特龙电子公司 | Wireless control device |
| CN111435763A (en) * | 2019-01-11 | 2020-07-21 | 联发科技股份有限公司 | Antenna system and associated radiation module |
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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: 20180825 |