CN101847778A - Antenna structure - Google Patents
Antenna structure Download PDFInfo
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- CN101847778A CN101847778A CN200910129346A CN200910129346A CN101847778A CN 101847778 A CN101847778 A CN 101847778A CN 200910129346 A CN200910129346 A CN 200910129346A CN 200910129346 A CN200910129346 A CN 200910129346A CN 101847778 A CN101847778 A CN 101847778A
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Abstract
The invention relates to an antenna structure which comprises a loop part and a signal part, wherein the loop part is of an annular region, and a notch part is formed on the loop part, so that the loop part is of a unsealed region; the signal part is electrically connected with the loop part; and the receiving and transmitting frequency of the antenna is determined according to the relative position of the signal part and the notch part. The antenna structure can have the effects of double frequency and down-frequency while reducing the size.
Description
Technical field
The present invention relates to a kind of antenna structure, particularly relate to the loop antenna structure that a kind of minification also can reach the effect of double frequency and frequency reducing.
Background technology
At present, flourish along with wireless telecommunications, make the various technology of wireless telecommunications of utilizing that borderless convenience be arranged, therefore also radio communication product has like the mushrooms after rain and constantly weeds out the old and bring forth the new, and looks for novelty to satisfy the consumer, seeks quickness, the demand of changes persuing, as portable type notebook computer, mobile phone, because need the transmission of data, voice, and wireless transmission can satisfy these demand, yet, reach wireless transmission and just must need and can receive and transmit electromagnetic antenna equipment.
And the facility of mobile phone in communication, make it become an indispensable part in our life, the manufacturer of mobile phone is the needs in response to the consumer, also constantly design different body and pattern, for the different selection of consumer, and the compact present especially employed trend of consumer, therefore, this also becomes considering of manufacturers design.
At present, the embedded antenna of mobile phone is topmost two kinds, and a kind of is unipole antenna (MonopoleAntenna), and another kind is planar inverted-F antenna (Planar Inverted-F Antenna; PIFA).Though unipole antenna than the transmitting-receiving power of the easier realization mobile phone of planar inverted-F antenna, often can't pass through electromagnetic wave energy absorptance (Specific Absorption Rate; SAR) test, and also there is certain specific (special) requirements in the space around the antenna.Though the planar inverted-F antenna comparison can be avoided the problem of SAR, but be limited by the design of mobile phone overall dimensions, have on the emission of mobile phone and receptivity, do some compromises.
Moreover, also there is manufacturer to use the loop antenna to apply on the mobile phone at present on the market, but loop antenna now all is design forms of single-frequency, and it is mainly used in the communication of high frequency band mostly, it is because of being subject to high input impedance, so less being applied on the small-sized communication product, moreover the size of loop antenna is bigger than the aforementioned antenna of mentioning (unipole antenna and planar inverted-F antenna), its main factor is that a highest wisdom will use lower frequency, the size of this type antenna just needs bigger, so just can reduce the whole transmitting-receiving frequency of loop antenna, the device that wireless telecommunication system used for now more and more compact change, the requirement of its antenna is need meet to possess multifrequency and small size, yet loop antenna now still can't reach its standard-required.
This shows that above-mentioned existing antenna obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel antenna structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because every problem of existing prior art, in order to take into account solution, the inventor proposes a kind of antenna structure based on research and development and many practical experience for many years, refer in particular to the design of loop antenna, with implementation and foundation as the above-mentioned shortcoming of improvement.
Summary of the invention
The objective of the invention is to, overcome the defective that existing antenna exists, and a kind of novel antenna structure is provided, technical problem to be solved is to make it can reach the effect with double frequency and frequency reducing under the situation that size is dwindled, and is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of antenna structure that the present invention proposes, this antenna comprises: a loop portion is to present an annular section, and this loop portion is formed with a notch part, makes this loop portion be rendered as the airtightless space territory; And a signal section, be and this loop portion electrically connect; Wherein, by the relative position of this signal section and this notch part to determine the transmitting-receiving frequency of this antenna.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid antenna structure, wherein said antenna further has a grounding parts, this grounding parts and this loop portion electrically connect.
Aforesaid antenna structure, the material of wherein said antenna is the material of conduction.
Aforesaid antenna structure, wherein said notch part are to present the effect with capacity effect.
Aforesaid antenna structure, the width of wherein said notch part influences capacitance.
Aforesaid antenna structure, the width of wherein said signal section influences the transmitting-receiving frequency of this antenna.
Aforesaid antenna structure, wherein said loop portion is to be divided into two arms by this signal section to this notch part, it is defined as a long-armed and galianconism respectively.
Aforesaid antenna structure, wherein said long-armed be the transmitting-receiving low-frequency signals.
Aforesaid antenna structure, wherein said galianconism are the transmitting-receiving high-frequency signals.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, for achieving the above object, the invention provides a kind of antenna structure, this antenna comprises: a loop portion is to present an annular section, and this loop portion is formed with a notch part, makes this loop portion be rendered as the airtightless space territory; And a signal section, be and this loop portion electrically connect that wherein, determining the transmitting-receiving frequency of this antenna, it not only can minification, can reach the effect with double frequency and frequency reducing simultaneously by the relative position of this signal section and this notch part.
By technique scheme, antenna structure of the present invention has following advantage and beneficial effect at least:
(1), the design of antenna structure of the present invention can be dwindled the size of existing known loop antenna.
(2), the design of antenna structure of the present invention can reach the effect with two widebands.
(3), the design of antenna structure of the present invention can be controlled the transmitting-receiving frequency of height easily.
In sum, the invention relates to a kind of antenna structure, this antenna comprises: a loop portion is to present an annular section, and this loop portion is formed with a notch part, makes this loop portion be rendered as the airtightless space territory; And a signal section, be and this loop portion electrically connect that wherein, to determine the transmitting-receiving frequency of this antenna, it can reach the effect with double frequency and frequency reducing in minification by the relative position of this signal section and this notch part.The present invention has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of antenna structure of the present invention.
Fig. 2 is an antenna structure of the present invention frequency diagram when using.
Fig. 3 is Smith's schematic diagram of antenna structure design of the present invention.
1: antenna 10: loop portion
12: notch part 20: signal section
30: grounding parts d: width
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of antenna structure, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can clearly present in the detailed description of graphic preferred embodiment is consulted in following cooperation.For convenience of description, in following embodiment, components identical is represented with identical numbering.
Seeing also shown in Figure 1ly, is the structural representation of antenna structure of the present invention.The antenna 1 of the antenna structure of preferred embodiment of the present invention, include a loop portion 10, a signal section 20 and a grounding parts 30, and the material of this antenna 1 is mainly electric conducting material, as metal materials such as copper, this antenna 1 mainly is installed in the electronic installation (figure does not draw), as small-sized communication electronic devices such as mobile phones.
This loop portion 10 is to present an annular section, and this loop portion is formed with a notch part 12, makes this loop portion 10 be rendered as the airtightless space territory.
This signal section 20, be and these loop portion 10 electrically connects, and with this electronic installation electrically connect, to reach the effect that the signal transmission links.
This grounding parts 30 has electrically connect with this loop portion 10, and it mainly is the generation that prevents pulse phenomenon.
When this antenna 1 is in user mode, this loop portion 10 can be in the state that receives and transmit data, and can accept extraneous data to this electronic installation, or the data of electronic installation are sent to the external world, and this notch part 12 mainly makes this loop portion 10 that can be rendered as airtight loop zone originally have a breach, thereby make this loop portion 10 be rendered as the airtightless space territory, and has two-end-point, so this notch part 12 promptly is between between the two-end-point of this loop portion 10, and can form effect by this with capacity effect, wherein the distance of this notch part 12 is short more, its capacitance is big more, the transmitting-receiving frequency of loop portion 10 is reduced, and the formation of this notch part 12 also can make the integral body of this antenna 1 present the function with double frequency, seeing also shown in Figure 2ly, is antenna structure of the present invention frequency diagram when using.See also shown in Figure 3 again, it is Smith's schematic diagram of antenna structure design of the present invention, design such as this loop portion 10 of this antenna 1 and the length of this notch part 12 and width can be according to Smith chart, make its receiving and transmitting signal can reach impedance matching, moreover, the relative position of this signal section 20 and this notch part 12 is to determine the relative frequency of this antenna 1, wherein, with this signal section 20 is datum mark, have two paths can reach this notch part 12 respectively, it is defined as a galianconism and long-armed respectively, and by changing galianconism and long-armed length, can change the value of its transmitting-receiving frequency signal, wherein, galianconism is the transmitting-receiving high-frequency signal, and is long-armed for receiving and dispatching low frequency signal, and this signal section 20 can be reached shift design easily with the setting of these notch part 12 relative positions, therefore can design the required relativeness of needed frequency values easily.And further if a width d of this signal section 20 is big more, can reduce the transmitting-receiving frequency of this antenna 1 integral body, therefore the width that only changes this signal section 20 can be adjusted the transmitting-receiving frequency value of this antenna 1 integral body, so the present invention can change the relative position of notch part 12 and this signal section 20 easily, and the size that changes this width d of this signal section 20, and decide the receiving and transmitting double frequency frequency of this antenna 1 integral body.This antenna 1 further has this grounding parts 30, there are electrically connect in one end of this grounding parts 30 and this loop portion 10, but the other end of this grounding parts 30 then is to be linked to a vast conductive area body (figure draw) or this grounding parts 30 self to be and to have vast area body (figure draws), this grounding parts 30 mainly is that anti-stop signal has the phenomenon of pulse to produce when receiving or transmit, and the signal that can be kept perfectly.
Please consult shown in 1 figure again, most preferred embodiment of the present invention is as described below, this loop portion 10 mainly is the shape that is rendered as rectangle, wherein the length of side on two long limits is 35 millimeters (Millimeter), the length of side of two minor faces is 12.5 millimeters, and the width on the long limit of left is 3 millimeters in the drawings, the width on right-hand long limit is 2 millimeters, the width of top minor face is 3 millimeters, the width of below minor face is 5 millimeters, this notch part 12 is the intersections that are positioned at top minor face and right-hand long limit, and the width of this notch part 12 is 1.5 millimeters, the length of top minor face is reduced thereupon, this grounding parts 30 mainly is the intersection that is positioned at long limit of left and top minor face, grounding parts 30 width of its coupling part are 1.2 millimeters, the width of this signal section 20 is 6 millimeters, this signal section 20 mainly is linked on the long limit of left, and the distance with this grounding parts 30 is 6.5 millimeters, when this antenna 1 when receiving and sending messages, because this antenna 1 has the factor of this notch part 12, can reach double frequency effect as shown in Figure 2, and according to above-mentioned this antenna 1 of finishing, its effect also as the data performance that Fig. 2 presented, has a high frequency and a low frequency.
Therefore, a kind of antenna structure provided by the present invention, it mainly provides a kind of reduced size, also can reach the loop antenna with double frequency and frequency reducing effect, so the present invention has progressive.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (9)
1. antenna structure is characterized in that this antenna comprises:
One loop portion is to present an annular section, and this loop portion is formed with a notch part, makes this loop portion be rendered as the airtightless space territory; And
One signal section is and this loop portion electrically connect;
Wherein, by the relative position of this signal section and this notch part to determine the transmitting-receiving frequency of this antenna.
2. antenna structure according to claim 1 is characterized in that wherein said antenna further has a grounding parts, this grounding parts and this loop portion electrically connect.
3. antenna structure according to claim 2 is characterized in that the material of the material of wherein said antenna for conduction.
4. antenna structure according to claim 1 is characterized in that wherein said notch part is to present the effect with capacity effect.
5. antenna structure according to claim 4 is characterized in that the width of wherein said notch part influences capacitance.
6. antenna structure according to claim 1 is characterized in that the width of wherein said signal section influences the transmitting-receiving frequency of this antenna.
7. antenna structure according to claim 1 is characterized in that wherein said loop portion is to be divided into two arms by this signal section to this notch part, and it is defined as a long-armed and galianconism respectively.
8. antenna structure according to claim 7, it is characterized in that wherein said long-armed be the transmitting-receiving low-frequency signals.
9. antenna structure according to claim 7 is characterized in that wherein said galianconism is the transmitting-receiving high-frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910129346A CN101847778A (en) | 2009-03-23 | 2009-03-23 | Antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910129346A CN101847778A (en) | 2009-03-23 | 2009-03-23 | Antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101847778A true CN101847778A (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910129346A Pending CN101847778A (en) | 2009-03-23 | 2009-03-23 | Antenna structure |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1823445A (en) * | 2003-07-16 | 2006-08-23 | 圣韵无限通讯技术有限公司 | Antenna with shorted active and passive planar loops and method of making the same |
| US20080007467A1 (en) * | 2006-07-07 | 2008-01-10 | Lg Electronics Inc. | Antenna and mobile terminal using the same |
-
2009
- 2009-03-23 CN CN200910129346A patent/CN101847778A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1823445A (en) * | 2003-07-16 | 2006-08-23 | 圣韵无限通讯技术有限公司 | Antenna with shorted active and passive planar loops and method of making the same |
| US20080007467A1 (en) * | 2006-07-07 | 2008-01-10 | Lg Electronics Inc. | Antenna and mobile terminal using the same |
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Application publication date: 20100929 |