CN104241855B - Antenna structure and wireless communication device with the antenna structure - Google Patents
Antenna structure and wireless communication device with the antenna structure Download PDFInfo
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- CN104241855B CN104241855B CN201310223024.9A CN201310223024A CN104241855B CN 104241855 B CN104241855 B CN 104241855B CN 201310223024 A CN201310223024 A CN 201310223024A CN 104241855 B CN104241855 B CN 104241855B
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- 230000008878 coupling Effects 0.000 claims abstract description 5
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- 230000000694 effects Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
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Abstract
The present invention provides a kind of antenna structure, it includes feed side, ground terminal, the first radiator, the second radiator and third radiator, first radiator and the second radiator two sides that be connected to feed side opposite, the third radiator is connect with ground terminal, first groove is formed on first radiator, second groove is formed between second radiator and third radiator, third groove is formed on the third radiator, the third groove is connected to second groove, the current coupling on first radiator and the second radiator to third radiator.The present invention also provides a kind of wireless communication devices with the antenna structure.The antenna structure works in different communication frequency range, facilitates the volume for reducing wireless communication device.
Description
Technical field
The present invention relates to a kind of antenna structure more particularly to the antenna structures and tool of a kind of energy receiving and transmitting double frequency or multiple-frequency signal
There is the wireless communication device of the antenna structure.
Background technique
In a wireless communication device, for emitting, receive radio wave to transmit, exchange the antenna of radio data signal
Device, undoubtedly one of most important element in wireless communication device.The communication systems using different operating frequency band various in recent years
The emergence of system and application then makes the design of antenna towards the antenna structure development for covering multiple band system bands.In order to true
Signal transmission can be carried out in the various wireless communication system using different operating frequency band by protecting wireless communication device, this day traditional thread binding
Set the signal for allowing for receiving and dispatching a variety of different frequencies.On the other hand, antenna structure general structure is complex, but due to antenna
The appearance of module is also intended to frivolous and micromation, so that Antenna Design other than broadband, also needs to be provided simultaneously with miniaturization
Feature.How to make antenna that there is the characteristic in broadband under the premise of not increasing wireless communication device volume, it has also become each day
The maximum challenge of line manufacturer.
Summary of the invention
In view of the above circumstances, it is necessary to which a kind of antenna structure for being operable with different frequency range and small volume is provided.
In addition, there is a need to provide a kind of wireless communication device with above-mentioned antenna structure.
A kind of antenna structure comprising feed side, ground terminal, the first radiator, the second radiator and third radiator, it should
First radiator and the second radiator two sides that be connected to feed side opposite, the third radiator are connect with ground terminal, this first
First groove is formed on radiator, forms second groove between second radiator and third radiator, on the third radiator
Third groove is formed, which is connected to second groove, and the current coupling on first radiator and the second radiator is extremely
Third radiator.
A kind of wireless communication device comprising circuit board and the antenna structure being set on circuit board, the antenna structure packet
Feed side, ground terminal, the first radiator, the second radiator and third radiator are included, first radiator and the second radiator connect
The opposite two sides in feed side are connected to, which connect with ground terminal, forms first groove on first radiator, this
Form second groove between two radiators and third radiator, on the third radiator formed third groove, the third groove with
Second groove is connected to, the current coupling on first radiator and the second radiator to third radiator.
Above-mentioned antenna structure is coupled by the first radiator, the second radiator with third radiator, so that the channel radio
T unit works in different communication frequency range, facilitates the volume for reducing wireless communication device.
Detailed description of the invention
Fig. 1 is the perspective view of the wireless communication device with antenna structure of present pre-ferred embodiments.
Fig. 2 is the circuit diagram of the match circuit of wireless communication device shown in FIG. 1.
Fig. 3 is the return loss plot of the antenna structure of wireless communication device shown in FIG. 1.
Main element symbol description
| Antenna structure | 100 |
| Feed side | 10 |
| Ground terminal | 20 |
| First radiator | 30 |
| First extension | 32 |
| Second extension | 34 |
| Third extension | 36 |
| Extendible flake | 38 |
| First groove | SL1 |
| Second radiator | 40 |
| Third radiator | 50 |
| First adapter section | 52 |
| Second adapter section | 54 |
| Third adapter section | 56 |
| Second groove | SL2 |
| Third groove | SL3 |
| Wireless communication device | 200 |
| Circuit board | 220 |
| Signal feed-in point | 222 |
| Grounding point | 224 |
| Match circuit | 240 |
| First capacitor | C1 |
| First inductance | L1 |
| Switching circuit | S |
| First switch unit | S1 |
| Second switch unit | S2 |
| Third switch unit | S3 |
| First switching switch | SW1 |
| Second inductance | L2 |
| Second switching switch | SW2 |
| Third inductance | L3 |
| Third switching switch | SW3 |
| 4th inductance | L4 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Referring to Fig. 1, better embodiment of the present invention provides a kind of antenna structure 100, it is applied to mobile phone, plate
In the wireless communication devices such as computer 200.The wireless communication device 200 further comprises circuit board 220,220 conduct of circuit board
The carrier of antenna structure 100, thereon setting signal load point 222 and grounding point 224.The signal feed-in point 222 is for feed-in electricity
Stream, the grounding point 224 are used to provide system earth for wireless communication device 200.
The antenna structure 100 includes feed side 10, ground terminal 20, the first radiator 30, the second radiator 40 and third spoke
Beam 50.
The feed side 10 and signal feed-in point 222 are electrically connected, to obtain electric current.224 electricity of the ground terminal 20 and grounding point
Property connection, and be arranged substantially in parallel with feed side 10.
First radiator 30 is connect with feed side 10, and constitutes a unipole antenna (Monopole).Specifically, this first
Radiator 30 includes the first extension 32, the second extension 34, third extension 36 and Extendible flake 38.First extension 32 is big
The side for being vertically connected at one end of feed side 10 is caused, which is vertically connected at the first extension 32 and prolongs with third
Between long section 36, which extends towards the direction parallel with the first extension 32, and crosses first extension 32.
First groove SL1 is formed between first extension 32, the second extension 34 and third extension 36.The Extendible flake 38 is one flat
Straight sheet body, is connected to the side of the opposite third extension 36 of the first extension 32, and is located at the first extension 32 close to the
One end of two extensions 34, for finely tuning the size of first radiator 30.In design and fabrication stage, by adjusting this first
The size of radiator 30 and first groove SL1, so that the antenna structure 100 is in transmitting-receiving LTE700/GSM850/EGSM900/
There is preferable effect when wireless signal in first frequency ranges such as WCDMA V/WCDMA VIII.
Second radiator 40 is vertically connected at side of the feed side 10 with respect to the first extension 32 of the first radiator 30,
And constitute a unipole antenna (Monopole).Second radiator 40 and the first extension 32 are located at always on, the two
The sum of length is less than the length of third extension 36.
The third radiator 50 includes the first adapter section 52, the second adapter section 54 and third adapter section 56.First combination
The side of 52 substantially vertical one end for being connected to ground terminal 20 of section, and court is roughly the same with the extending direction of the second radiator 40
Direction extend, to cross the second radiator 40.Second groove is formed between second radiator 40 and the first adapter section 52
SL2.Second adapter section 54 is vertically connected between the first adapter section 52 and third adapter section 56.The third adapter section 56 and
Two radiators 40 are located substantially at always on, which extends towards the direction close to the second radiator 40, and more
Third extension 36 is crossed, and then is arranged simultaneously with the second radiator 40 and the interval of third extension 36.First adapter section 52,
Third groove SL3 is formed between two adapter sections 54 and third adapter section 56, which is connected to second groove SL2.?
Design and fabrication stage, by adjusting second radiator 40, third radiator 50, second groove SL2 and third groove SL3
Size, so that wireless signal of the antenna structure 100 in second frequency range such as transmitting-receiving DCS/PCS/UMTS/WCDMA I, II, IV
When have preferable effect.
It, can be by feed side 10, ground terminal 20, the first radiator 30 when the antenna structure 100 is installed on circuit board 220
Extendible flake 38 and third radiator the first adapter section 52 and the second adapter section 54 be set to one first plane of circuit board 220
It is interior；By the first extension 32 of the first radiator 30, the second extension 34, third extension 36, the second radiator 40 and third
The third adapter section 56 of radiator 50 is set in one second plane of circuit board 220, and second plane is vertical with the first plane.
In this way, passing through the position of the reasonable disposition antenna structure 100 and circuit board 220, the purpose for reducing antenna occupied space can reach.
Referring to Fig. 2, in addition, being imitated to advanced optimize antenna structure 100 to the transmitting-receiving of the wireless signal in the first frequency range
A match circuit 240 is further arranged in fruit, the wireless communication device 200.The match circuit 240 is electrically connected at circuit board 220
Signal feed-in point 222 and antenna structure 100 feed side 10 between.Wherein, the match circuit 240 include first capacitor C1,
First inductance L1 and switching circuit S.First capacitor C1 is electrically connected between signal feed-in point 222 and feed side 10, this
One inductance L1 is electrically connected between feed side 10 and ground.One end of switching circuit S is electrically connected and feed side 10 and first
Between inductance L1, other end ground connection.In this example, switching circuit S includes the first switch unit S1 being arranged in parallel, second
Switch unit S2 and third switch unit S3.First switch unit S1 includes concatenated first switching switch SW1 and the second electricity
Feel L2；Second switch unit S2 includes concatenated second switching switch SW2 and third inductance L3；The third switch unit S3 packet
Include concatenated third switching switch SW3 and the 4th inductance L4.By the inductance value of the second inductance L2 of adjustment, a day knot can be finely tuned
Transmitting-receiving effect of the structure 100 to the wireless signal in LTE700 frequency range；By the inductance value of adjustment third inductance L3, day can be finely tuned
Transmitting-receiving effect of the cable architecture 100 to the wireless signal in GSM850 frequency range；By adjusting the inductance value of the 4th inductance L4, Ke Yiwei
Adjust antenna structure 100 to the transmitting-receiving effect of the wireless signal in EGSM900 frequency range.
The working principle of the wireless communication device 200 is further illustrated below, when the signal feed-in point 222 of circuit board 220
After feed-in electric current, the feed side 10 of antenna structure 100 obtains electric current.A portion electric current flows through the first radiator 30, so that
Antenna structure 100 excites the first resonance mode, to receive and dispatch LTE700/GSM850/EGSM900/WCDMA V/WCDMA VIII etc.
Wireless signal in first frequency range.Another part circuit flows through the second radiator 40, so that second resonance of the excitation of antenna structure 100
Mode.In addition, the current coupling on first radiator 30 and the second radiator 40 is to third radiator 50, and pass through ground terminal
20 ground connection, so that antenna structure 100 excites third resonance mode.Under second resonance mode and third resonance mode, wirelessly
Communication device 200 can receive and dispatch the wireless signal of frequency range in second frequency range such as DCS/PCS/UMTS/WCDMA I, II, IV.
When if desired optimizing the transmitting-receiving effect of wireless signal in 100 first frequency range of antenna structure, as optimized to LTE700
Effect is received and dispatched, closure the first switching switch SW1 disconnects the second switching switch SW2 and third switches switch SW3.Similarly, if
Need to optimize the transmitting-receiving effect to EGSM900, closure third switches switch SW3, disconnects the first switching switch SW1 and the second switching
Switch SW2.For example, from the figure 3, it may be seen that the wireless communication device 200 is receiving and dispatching the when being closed third switching switch SW3
(frequency is substantially for wireless signal and the second frequency range in one frequency range (frequency substantially 704-746MHz and 824-960 MHz)
1710-2170 MHz) in wireless signal when all have preferable effect.Antenna structure 100 of the invention passes through the first spoke
Beam 30, the second radiator 40 are coupled with third radiator 50, so that the wireless communication device 200 works in different communication frequency
Section facilitates the volume for reducing wireless communication device 200.Meanwhile the antenna structure 100 further cooperates with match circuit 240,
The wireless signal that the wireless communication device 200 is received and dispatched covers LTE700/GSM850/EGSM900/DCS/PCS/
The 4G frequency range such as UMTS/WCDMA I, II, IV, V, VIII.
Claims (10)
1. a kind of antenna structure comprising feed side, ground terminal, it is characterised in that: the antenna structure further includes the first radiation
Body, the second radiator and third radiator, first radiator and the second radiator two sides that be connected to feed side opposite, this
Three radiators are connect with ground terminal, form first groove on first radiator, between second radiator and third radiator
Second groove is formed, forms third groove on the third radiator, which is connected to second groove, first radiator
And the second current coupling on radiator is to third radiator, the third radiator include the first adapter section, the second adapter section and
Third adapter section, first adapter section are connected to the side of ground terminal, which is connected to the first adapter section and third
Between adapter section, first adapter section, the second adapter section, feed side and ground terminal are all set in the first plane, which combines
Section is set to the second plane, and second plane is perpendicular to the first plane.
2. antenna structure as described in claim 1, it is characterised in that: first radiator includes the first extension, second
Extension and third extension, first extension are connected to the side of feed side, which is connected to the first extension
Between section and third extension, which extends towards the direction parallel with the first extension, and crosses first extension
Section, the first groove are formed between the first extension, the second extension and third extension, and first extension, second prolong
Long section, third extension and the second radiator are set to second plane.
3. antenna structure as claimed in claim 2, it is characterised in that: first radiator further includes Extendible flake, the extension
Piece is connected to side of first extension with respect to third extension, and is located at the first extension close to one end of the second extension,
The Extendible flake is set to first plane.
4. antenna structure as claimed in claim 2, it is characterised in that: second radiator is connected to feed side with respect to first
The side of first extension of radiator, and it is located at same straight line with the first extension.
5. antenna structure as claimed in claim 4, it is characterised in that: the described second groove is formed in the second radiator and
Between one adapter section, which extends towards the direction close to the second radiator, and the third for crossing the first radiator connects
Section is connect, to be formed in the first adapter section, the second adapter section with the second radiator and the setting of third extension interval, the third groove
And between third adapter section.
6. a kind of wireless communication device comprising circuit board and the antenna structure being set on circuit board, it is characterised in that: described
Antenna structure is antenna structure described in any one of Claims 1 to 5 item.
7. wireless communication device as claimed in claim 6, it is characterised in that: first radiator has first for receiving and dispatching
The wireless signal of frequency range, second radiator and third radiator are used to receive and dispatch the wireless signal with the second frequency range, described
The frequency of first frequency range is lower than the frequency of the second frequency range.
8. wireless communication device as claimed in claim 7, it is characterised in that: setting signal load point on the circuit board, it should
Wireless communication device further includes match circuit, which is electrically connected at the signal feed-in point and antenna structure of circuit board
Between feed side, for optimizing wireless communication device to the transmitting-receiving effect of the wireless signal in the first frequency range.
9. wireless communication device as claimed in claim 8, it is characterised in that: the match circuit includes first capacitor, first
Inductance and switching circuit, the first capacitor are electrically connected between signal feed-in point and feed side, which is electrically connected
Between feed side and ground, one end of the switching circuit is electrically connected between feed side and the first inductance, other end ground connection.
10. wireless communication device as claimed in claim 9, it is characterised in that: the switching circuit includes be arranged in parallel
One switch unit, the second switch unit and third switch unit, first switch unit include it is concatenated first switching switch and
Second inductance；Second switch unit includes concatenated second switching switch and third inductance；The third switch unit includes string
The third switching switch of connection and the 4th inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310223024.9A CN104241855B (en) | 2013-06-06 | 2013-06-06 | Antenna structure and wireless communication device with the antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310223024.9A CN104241855B (en) | 2013-06-06 | 2013-06-06 | Antenna structure and wireless communication device with the antenna structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104241855A CN104241855A (en) | 2014-12-24 |
| CN104241855B true CN104241855B (en) | 2019-05-10 |
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| CN201310223024.9A Expired - Fee Related CN104241855B (en) | 2013-06-06 | 2013-06-06 | Antenna structure and wireless communication device with the antenna structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159443B (en) * | 2015-03-31 | 2019-06-11 | 华为技术有限公司 | Antenna Units and Terminals |
| CN111276796B (en) * | 2018-12-05 | 2022-08-19 | 国巨电子（中国）有限公司 | Double-section adjustable intelligent antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569995A (en) * | 2010-12-30 | 2012-07-11 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna |
| CN102820523A (en) * | 2011-06-07 | 2012-12-12 | 启碁科技股份有限公司 | Multi-frequency antenna |
| CN202695708U (en) * | 2012-04-19 | 2013-01-23 | 启碁科技股份有限公司 | Broadband antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8373610B2 (en) * | 2007-12-18 | 2013-02-12 | Apple Inc. | Microslot antennas for electronic devices |
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2013
- 2013-06-06 CN CN201310223024.9A patent/CN104241855B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569995A (en) * | 2010-12-30 | 2012-07-11 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna |
| CN102820523A (en) * | 2011-06-07 | 2012-12-12 | 启碁科技股份有限公司 | Multi-frequency antenna |
| CN202695708U (en) * | 2012-04-19 | 2013-01-23 | 启碁科技股份有限公司 | Broadband antenna |
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| CN104241855A (en) | 2014-12-24 |
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Address after: 518109 A building, F3 District, Foxconn science and Technology Industrial Park, Longhua Town, Shenzhen, Guangdong, Baoan District Applicant after: Shenzhen Futaihong Precision Industry Co., Ltd. Applicant after: Qun Mai communication limited company Address before: 518109 A building, F3 District, Foxconn science and Technology Industrial Park, Longhua Town, Shenzhen, Guangdong, Baoan District Applicant before: Shenzhen Futaihong Precision Industry Co., Ltd. Applicant before: Chi Mei Communication Systems, Inc. |
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Granted publication date: 20190510 Termination date: 20210606 |
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