CN103943944A - Antenna structure and wireless communication device using antenna structure - Google Patents
Antenna structure and wireless communication device using antenna structure Download PDFInfo
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- CN103943944A CN103943944A CN201310016694.3A CN201310016694A CN103943944A CN 103943944 A CN103943944 A CN 103943944A CN 201310016694 A CN201310016694 A CN 201310016694A CN 103943944 A CN103943944 A CN 103943944A
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Abstract
The invention provides an antenna structure which comprises a feed in part, a grounding part, a first radiator, a second radiator and a third radiator. The first radiator, the second radiator and the feed in part are connected. The first radiator is used for transmitting and receiving a wireless signal with first center frequency. The third radiator comprises a first connecting section, a second connecting section and a third connecting section. The first connecting section is connected with the grounding part. The third connecting section is connected between the first connecting section and the second connecting section. The first connecting section and the second connecting section are arranged in parallel on both sides of the second radiator, so that the current on the third radiator and the second radiator are coupled, and the third radiator and the second radiator are used together to receive and transmit a wireless signal with second center frequency. The invention further provides a wireless communication device using the antenna structure. According to the antenna structure provided by the invention, the spatial positions of the second radiator and the third radiator are rationally allocated, which helps to reduce the size of the antenna, and is convenient for the miniaturization development of a wireless communication device.
Description
Technical field
The present invention relates to a kind of antenna structure and apply the radio communication device of this antenna structure.
Background technology
Along with radio communication vigorous growth, change our life and brought all facilities, also therefore there is wireless communications products miscellaneous.Yet along with the diversification of wireless product, needed communication band also increases gradually, and there is diminishing trend the size of these communication products and inner space, and the design space of antenna is also compressed relatively.Therefore, how in limited space, designing the more antenna in broadband will be a major challenge.
Summary of the invention
In view of this, be necessary the antenna structure that provides a kind of frequency band wider.
Separately, be also necessary to provide a kind of radio communication device of this antenna structure of application.
A kind of antenna structure, it comprises feeding portion, grounding parts, the first radiant body, the second radiant body and the 3rd radiant body, this first radiant body is connected with feeding portion with the second radiant body, described the first radiant body is for receiving and dispatching the wireless signal with the first centre frequency, described the 3rd radiant body comprises the first linkage section, the second linkage section and the 3rd linkage section, described the first linkage section is connected with grounding parts, between described the 3rd linkage section connection and the first linkage section and the second linkage section, described the first linkage section and the second linkage section are set in parallel in the second radiant body both sides, so that the current coupling on the 3rd radiant body and the second radiant body, and jointly in order to receive and dispatch the wireless signal with the second centre frequency.
A kind of radio communication device, it comprises mainboard and antenna structure, described antenna structure comprises feeding portion, grounding parts, the first radiant body, the second radiant body and the 3rd radiant body, feeding portion, grounding parts is all connected on mainboard, this first radiant body is connected with feeding portion with the second radiant body, the first radiant body is for receiving and dispatching the wireless signal with the first centre frequency, described the 3rd radiant body comprises the first linkage section, the second linkage section and the 3rd linkage section, described the first linkage section is connected with grounding parts, between described the 3rd linkage section connection and the first linkage section and the second linkage section, described the first linkage section and the second linkage section are set in parallel in the second radiant body both sides, so that the current coupling on the 3rd radiant body and the second radiant body, and jointly in order to receive and dispatch the wireless signal with the second centre frequency.
Above-mentioned antenna structure comprises a plurality of radiant bodies, and passes through the second radiant body by current coupling to the three radiant bodies, so that antenna structure can be received and dispatched the wireless signal of a plurality of frequency ranges, has increased the bandwidth of antenna.On the other hand, antenna structure of the present invention, by the locus of reasonable disposition the second radiant body and the 3rd radiant body, contributes to reduce the size of antenna, is convenient to the miniaturization development of radio communication device.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the radio communication device of better embodiment of the present invention.
Fig. 2 is the schematic diagram of the antenna structure of the radio communication device shown in Fig. 1.
Fig. 3 is the return loss plot of the antenna structure shown in Fig. 2.
Main element symbol description
| Antenna structure | 100 |
| Feeding portion | 10 |
| Grounding parts | 20 |
| The first radiant body | 30 |
| The first extension | 31 |
| The second extension | 33 |
| The 3rd extension | 35 |
| The second radiant body | 40 |
| The 3rd radiant body | 50 |
| The first linkage section | 51 |
| The second linkage section | 52 |
| The 3rd linkage section | 53 |
| Extension | 54 |
| The first lamellar body | 541 |
| The second lamellar body | 542 |
| The 3rd lamellar body | 543 |
| The 4th lamellar body | 544 |
| Radio communication device | 200 |
| Mainboard | 220 |
| Feed-in terminal separated | 240 |
| Earth terminal | 260 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 and Fig. 2, better embodiment of the present invention provides a kind of antenna structure 100, and it is applied in the radio communication devices such as mobile phone, flat computer.In the present embodiment, this antenna structure 100 is suspended on the mainboard 220 of a radio communication device 200.
Refer to Fig. 1, this mainboard 220 is roughly a cuboid, is interval with a feed-in terminal separated 240 and an earth terminal 260 on this mainboard 220.
Refer to Fig. 1, this antenna structure 100 comprises feeding portion 10, grounding parts 20, the first radiant body 30, the second radiant body 40 and the 3rd radiant body 50.The feeding portion 10 of this antenna structure 100 is electrically connected with feed-in terminal separated 240, thinks antenna structure 100 feed-in electric currents, and the grounding parts 20 of this antenna structure 100 is electrically connected with earth terminal 260, so that flow into the electric current of antenna structure 100, forms loop.
Refer to Fig. 2, this first radiant body 30 comprises the first extension 31, the second extension 33 and the 3rd extension 35 connecting successively.In the present embodiment, this first extension 31 and the second extension 33 are positioned at same plane.This first extension 31 is connected in a side of feeding portion 10.This second extension 33 is with first extension 31 is vertical is connected, and is connected with the 3rd extension 35 arc-shaped transition.The plane at the 3rd extension 35 places is roughly perpendicular with the plane at the first extension 31 places.In the design and manufacture stage, by adjusting the length of this first radiant body 30, make this antenna structure 100 when receiving and dispatching the wireless signal (as GSM 1800/1900 frequency range) that the first centre frequency is 1680MHz ~ 2060MHz, there is preferably effect.
Refer to Fig. 2, this second radiant body 40 is connected in a side of relative the first radiant body 30 of feeding portion 10, and towards extend to surpass the 3rd extension 35 away from the direction of the first extension 31, and then make this first radiant body 30 and the second radiant body 40 whole formation one type of falling C structures.
The 3rd radiant body 50 comprises the first linkage section 51, the second linkage section 52, the 3rd linkage section 53 and an extension 54.This first linkage section 51 is by straight the extending in grounding parts 20 one end, and the first linkage section 51 and the second linkage section 52 are parallel to each other, and the 3rd linkage section 53 is vertically connected between the first linkage section 51 and the second linkage section 52 to form a C type structure.In the present embodiment, the first linkage section 51, the second linkage section 52 are suitable with the second radiant body 40 length, the two is set in parallel in the second radiant body 40 both sides and all keeps at a certain distance away with the second radiant body 40, so that flow through current coupling to the three radiant bodies 50 of the second radiant body 40.In the present embodiment, this extension 54 is in order to improve the signal transmitting and receiving efficiency of antenna structure 100, and it comprises the first lamellar body 541, the second lamellar body 542, the 3rd lamellar body 543, the 4th lamellar body 544.This first lamellar body 541 is extended away from one end of grounding parts 20 by the first linkage section 51.This second lamellar body 542 is vertically connected between the first lamellar body 541 and the 3rd lamellar body 543, and the second lamellar body 542 and the coplanar setting of the 3rd lamellar body 543, and the plane at the two place is substantially vertical with the plane at the first lamellar body 541 places.The 4th lamellar body 544 is connected with the other end arc-shaped transition of the 3rd lamellar body 543, and extends to cross the 3rd extension 35 towards the direction parallel with the 3rd extension 35 of the first radiant body 30.In the design and manufacture stage, by adjusting the length of the 3rd radiant body 50 and the spacing between the 3rd radiant body 50 and the second radiant body 40, make this antenna structure 100 when receiving and dispatching the wireless signal (as WCDMA band5/band8 frequency range) that the second centre frequency is 810MHz ~ 1080MHz, there is preferably effect.
Refer to Fig. 1, further illustrate below in the present embodiment, the operation principle of this antenna structure 100:
First when feeding portion 10 is from the feed-in terminal separated 240 feed-in electric currents of radio communication device 200, on this first radiant body 30, there is electric current to flow through, so that these antenna structure 100 transmitting-receivings have the wireless signal of the first centre frequency.Simultaneously, on the second radiant body 40, also there is electric current to flow through, because the spacing between the 3rd radiant body 50 and the second radiant body 40 meets pre-provisioning request, make this second radiant body 40 and the 3rd radiant body 50 produce coupling effect and excite the resonance mode making new advances, so that these antenna structure 100 transmitting-receivings have the wireless signal of the second centre frequency.So, this antenna structure 100 can be received and dispatched the wireless signal in a plurality of frequency ranges.As shown in Figure 3, this antenna structure 100 has wider frequency band and higher efficiency when transmitting-receiving the first centre frequency is 810MHz～1080MHz and the second centre frequency wireless signal that is 1680MHz～2060MHz.
Antenna structure 100 of the present invention comprises the first radiant body 30, the second radiant body 40 and the 3rd radiant body 50, and make the second radiant body 40 and the 3rd radiant body 50 intercouple to excite new resonance mode, to improve the bandwidth of antenna structure 100, can meet the broadband demand of radio communication device 200.Meanwhile, this antenna structure 100, by the locus of the second radiant body 40 and the 3rd radiant body 50 is rationally set, contributes to reduce antenna size.
The extension 54 that is appreciated that antenna structure 100 of the present invention is not limited to some lamellar bodies described in the present embodiment, and it can do suitably change according to the Structural Tectonics of radio communication device 200.
In sum, all equivalent transformations of being done according to the present invention's spirit, all should be covered by protection range of the present invention.
Claims (10)
1. an antenna structure, it is characterized in that: described antenna structure comprises feeding portion, grounding parts, the first radiant body, the second radiant body and the 3rd radiant body, this first radiant body and the second radiant body are all connected with feeding portion, described the first radiant body is for receiving and dispatching the wireless signal with the first centre frequency, described the 3rd radiant body comprises the first linkage section, the second linkage section and the 3rd linkage section, described the first linkage section is connected with grounding parts, described the 3rd linkage section is connected between the first linkage section and the second linkage section, described the first linkage section and the second linkage section are set in parallel in the second radiant body both sides, so that the current coupling on the 3rd radiant body and the second radiant body, and jointly in order to receive and dispatch the wireless signal with the second centre frequency.
2. antenna structure as claimed in claim 1, it is characterized in that: described the first radiant body comprises the first extension, the second extension and the 3rd extension, described the first extension is connected with the second extension is vertical, and coplanar setting, described the second extension is connected with the 3rd extension arc-shaped transition, and the plane at the plane at the 3rd extension place and the first extension place is perpendicular.
3. antenna structure as claimed in claim 2, is characterized in that: described the second radiant body is connected in feeding portion to the first extension one side, and towards extending away from the first extension direction.
4. antenna structure as claimed in claim 2, it is characterized in that: described the 3rd radiant body also comprises an extension, it comprises the first lamellar body, the second lamellar body, the 3rd lamellar body and the 4th lamellar body, and described the first lamellar body, the second lamellar body, the 3rd lamellar body and the 4th lamellar body connect successively.
5. antenna structure as claimed in claim 4, is characterized in that: described the first lamellar body is connected in the first linkage section away from one end of grounding parts, the second lamellar body and the coplanar setting of the 3rd lamellar body, and the plane at the two place is substantially vertical with the plane at the first lamellar body place.
6. antenna structure as claimed in claim 5, is characterized in that: described the 4th lamellar body is connected with the 3rd lamellar body arc-shaped transition, and extends to cross the 3rd extension towards the direction parallel with the 3rd extension of the first radiant body.
7. antenna structure as claimed in claim 1, is characterized in that: described the first centre frequency is 1680MH ~ 2060MHz, and described the second centre frequency is 810MH ~ 1080MHz.
8. a radio communication device, it comprises mainboard and antenna structure, it is characterized in that: described antenna structure comprises feeding portion, grounding parts, the first radiant body, the second radiant body and the 3rd radiant body, feeding portion, grounding parts is all connected on mainboard, this first radiant body is connected with feeding portion with the second radiant body, the first radiant body is for receiving and dispatching the wireless signal with the first centre frequency, described the 3rd radiant body comprises the first linkage section, the second linkage section and the 3rd linkage section, described the first linkage section is connected with grounding parts, between described the 3rd linkage section connection and the first linkage section and the second linkage section, described the first linkage section and the second linkage section are set in parallel in the second radiant body both sides, so that the current coupling on the 3rd radiant body and the second radiant body, and jointly in order to receive and dispatch the wireless signal with the second centre frequency.
9. radio communication device as claimed in claim 8, it is characterized in that: described the first radiant body comprises the first extension, the second extension and the 3rd extension, described the first extension is connected with the second extension is vertical, and coplanar setting, described the second extension is connected with the 3rd extension arc-shaped transition, the plane at the plane at the 3rd extension place and the first extension place is perpendicular, described the second radiant body is connected in feeding portion to the first extension one side, and towards extending away from the first extension direction.
10. radio communication device as claimed in claim 9, it is characterized in that: described the 3rd radiant body also comprises an extension, described extension comprises the first lamellar body, the second lamellar body, the 3rd lamellar body and the 4th lamellar body, described the first lamellar body, the second lamellar body, the 3rd lamellar body and the 4th lamellar body connect successively, described the first lamellar body is connected in the first linkage section away from one end of grounding parts, the second lamellar body and the coplanar setting of the 3rd lamellar body, the plane at the two place is vertical with the plane at the first lamellar body place, described the 4th lamellar body is connected with the 3rd lamellar body arc-shaped transition, and extend to cross the 3rd extension towards the direction parallel with the 3rd extension of the first radiant body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310016694.3A CN103943944B (en) | 2013-01-17 | 2013-01-17 | The wireless communication device of antenna structure and the application antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310016694.3A CN103943944B (en) | 2013-01-17 | 2013-01-17 | The wireless communication device of antenna structure and the application antenna structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103943944A true CN103943944A (en) | 2014-07-23 |
| CN103943944B CN103943944B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310016694.3A Expired - Fee Related CN103943944B (en) | 2013-01-17 | 2013-01-17 | The wireless communication device of antenna structure and the application antenna structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635973A (en) * | 2019-09-24 | 2021-04-09 | 和硕联合科技股份有限公司 | Antenna structure and communication device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864320A (en) * | 1988-05-06 | 1989-09-05 | Ball Corporation | Monopole/L-shaped parasitic elements for circularly/elliptically polarized wave transceiving |
| US20080129630A1 (en) * | 2002-09-10 | 2008-06-05 | Carles Puente Baliarda | Coupled multiband antennas |
| CN201498592U (en) * | 2009-08-06 | 2010-06-02 | 国基电子（上海）有限公司 | Double frequency antenna |
| TWI378602B (en) * | 2008-11-07 | 2012-12-01 | Univ Nat Sun Yat Sen | A multiband monopole antenna |
-
2013
- 2013-01-17 CN CN201310016694.3A patent/CN103943944B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864320A (en) * | 1988-05-06 | 1989-09-05 | Ball Corporation | Monopole/L-shaped parasitic elements for circularly/elliptically polarized wave transceiving |
| US20080129630A1 (en) * | 2002-09-10 | 2008-06-05 | Carles Puente Baliarda | Coupled multiband antennas |
| TWI378602B (en) * | 2008-11-07 | 2012-12-01 | Univ Nat Sun Yat Sen | A multiband monopole antenna |
| CN201498592U (en) * | 2009-08-06 | 2010-06-02 | 国基电子（上海）有限公司 | Double frequency antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635973A (en) * | 2019-09-24 | 2021-04-09 | 和硕联合科技股份有限公司 | Antenna structure and communication device |
| CN112635973B (en) * | 2019-09-24 | 2023-07-21 | 和硕联合科技股份有限公司 | Antenna structure and communication device |
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| Publication number | Publication date |
|---|---|
| CN103943944B (en) | 2018-06-19 |
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