CN101982896A - Antenna device - Google Patents
Antenna device Download PDFInfo
- Publication number
- CN101982896A CN101982896A CN2010102998739A CN201010299873A CN101982896A CN 101982896 A CN101982896 A CN 101982896A CN 2010102998739 A CN2010102998739 A CN 2010102998739A CN 201010299873 A CN201010299873 A CN 201010299873A CN 101982896 A CN101982896 A CN 101982896A
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- Prior art keywords
- metalwork
- antenna assembly
- antenna
- circuit board
- metallic conductor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 35
- 239000003990 capacitor Substances 0.000 abstract 2
- 238000004891 communication Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The invention discloses an antenna device which comprises a housing and an antenna. The housing comprises an upper cover and a lower cover. The antenna is arranged in the housing and comprises a metal conductor, a circuit board, a matching circuit and a conducting wire. The metal conductor is arranged in the upper cover. The circuit board is arranged in the lower cover and comprises a grounding layer. The matching circuit is formed on the circuit board and comprises a first metal part, a second metal part and a capacitor. The second metal part comprises a signal feed-in point, and a gap is formed between the second metal part and the first metal part. The capacitor is arranged in the gap and electrically connected with the first metal part and the second metal part. The conducting wire is electrically connected with the first metal part and the metal conductor in the upper cover.
Description
Technical field
The invention relates to a kind of antenna assembly, particularly a kind of digital TV antenna device.
Background technology
Along with the progress of science and technology, the main battle ground of mechanics of communication is transferred to wireless mechanics of communication from wired mechanics of communication gradually.And on the transmission media of signal, being changed over the air by tangible in the past metallic circuit (as coaxial cable) is the wireless telecommunications of propagation medium, and the door of electromagnetic wave signal turnover wireless telecommunications system is an antenna.
The built-in antenna of digital TV products is on the market all realized with the metal pull bar form at present, and through connector antenna is connected on the circuit board.But the antenna structure so often produces following shortcoming.At first, the operation frequency range of general Digital Television arrives 870MHz between 470MHz, but the antenna of metal pull bar form because of its impedance frequency range is not sufficient to contain enough Digital Television frequency ranges, and can't improve the ground receiving digital television signal; Secondly, in the process of the antenna of manipulating the metal pull bar form, must earlier antenna be done the action that rotation is pulled out again, not only do not have a convenience, and after using a period of time, connector is then tired and then lose frictional force, causes antenna to be difficult for being fixed on the certain location.
Hence one can see that, and a kind of digital television receiver antenna device that has more convenience and can contain the Digital Television frequency range fully of real palpus is to promote wireless mobile convenience.
Summary of the invention
Therefore, the objective of the invention is is providing a kind of antenna assembly, and by flip adjusting the matching status of its antenna, thereby promote efficient and quality in receiving digital television signal.
One aspect of the present invention is to propose a kind of antenna assembly, and it comprises a housing, an antenna.Housing comprises a loam cake and a lower cover.Antenna is arranged in the housing, and comprises a metallic conductor, a circuit board, a match circuit and a lead.Metallic conductor is arranged in the loam cake.Circuit board is arranged in the lower cover and has a ground plane.Match circuit is formed on the circuit board, and comprises one first metalwork, one second metalwork and an electric capacity.Second metalwork has a signal feed-in point, and forms a gap between second metalwork and first metalwork.Electric capacity is arranged on the gap, and electrically connects first metalwork and second metalwork.Lead then electrically connects the metallic conductor in first metalwork and the loam cake.
According to one embodiment of the invention, wherein signal feed-in point is in order to receive the Digital Television frequency range of 470MHz to 870MHz.
According to one embodiment of the invention, its middle shell also comprises a pivot, articulates loam cake and lower cover.
According to one embodiment of the invention, wherein antenna also comprises a metal rotating shaft, is arranged in the pivot, and electrically connects metallic conductor and ground plane.
According to one embodiment of the invention, wherein metallic conductor has a rectangular appearance.
According to one embodiment of the invention, wherein electric capacity is a chip capacity, and its capacitance is between between the 1pF to 2pF.
According to one embodiment of the invention, wherein first metalwork and second metalwork are all the printed traces on the circuit board.
According to one embodiment of the invention, wherein first metalwork has a ring-type outward appearance, and second metalwork has a rectangular appearance.
According to one embodiment of the invention, wherein lead comprises one first end and one second end, electrically connects the metallic conductor and first metalwork respectively, and first end and second end all have a ring-type outward appearance.
According to one embodiment of the invention, also comprise at least one communication module, be formed on the circuit board.
According to one embodiment of the invention, also comprise the line of rabbet joint, be arranged on the metallic conductor, and the capacitance of chip capacity is more than the 50pF.
The present invention also proposes a kind of antenna assembly, and it comprises a housing, an antenna.Housing comprises a loam cake and a lower cover.Antenna is arranged in the housing, and comprises a metallic conductor, a circuit board, a match circuit and a lead.Metallic conductor is arranged in the loam cake.Circuit board is arranged in the lower cover and has a ground plane.Match circuit is formed on the circuit board, and comprises one first metalwork, one second metalwork and an electric capacity.Second metalwork has a signal feed-in point, and forms a gap between second metalwork and first metalwork.Electric capacity is arranged on the gap, and electrically connects first metalwork and second metalwork.Lead then electrically connects the metallic conductor in first metalwork and the loam cake.In addition, antenna assembly also includes two parallel metal sheets and is set in parallel in the circuit board two sides respectively.A plurality of metal clipss then are arranged between this circuit board and this parallel metal sheet.This metal clips is used to electrically connect circuit board and parallel metal sheet.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:
Figure 1A is the vertical view that illustrates according to a kind of antenna assembly of one embodiment of the invention;
Figure 1B is the end view that illustrates the antenna assembly among Figure 1A;
Fig. 1 C is the match circuit that illustrates among Figure 1A;
Fig. 1 D is the lead that illustrates among Figure 1A;
Fig. 2 illustrates according to the antenna assembly of Figure 1A to be 90 S when spending in its angle theta
11The DATA REASONING value;
Fig. 3 illustrates according to the antenna assembly of Figure 1A to be 150 S when spending in its angle theta
11The DATA REASONING value;
Fig. 4 is the vertical view that illustrates according to a kind of antenna assembly of another embodiment of the present invention;
Fig. 5 illustrates according to the antenna assembly of Fig. 4 to be 150 S when spending in its angle theta
11The DATA REASONING value;
Fig. 6 A illustrates the front view that has circuit board section according to a kind of antenna assembly of yet another embodiment of the invention;
Fig. 6 B illustrates the end view that has circuit board section according to a kind of antenna assembly of yet another embodiment of the invention.
[primary clustering symbol description]
100: 332: the second metalworks of antenna assembly
200: housing 333: electric capacity
210: loam cake 334: signal feed-in point
220: lower cover 335: gap
230: pivot 340: lead
300: 341: the first ends of antenna
310: 342: the second ends of metallic conductor
320: circuit board 350: metal rotating shaft
322: 351: the first connecting portions of ground plane
330: 352: the second connecting portions of match circuit
510: 520: the first parallel metal sheets of the line of rabbet joint
Embodiment
In order to make narration of the present invention more detailed and complete, can be with reference to appended accompanying drawing and the various embodiment of the following stated, identical number is represented same or analogous assembly in the accompanying drawing.On the other hand, well-known assembly and step are not described among the embodiment, with the restriction of avoiding causing the present invention unnecessary.
Please refer to Figure 1A, it illustrates the vertical view according to a kind of antenna assembly of one embodiment of the invention.Shown in Figure 1A, a kind of antenna assembly 100 comprises a housing 200, an antenna 300.Housing 200 comprises a loam cake 210 and a lower cover 220.Antenna 300 is arranged in the housing 200, and comprises a metallic conductor 310, a circuit board 320, a match circuit 330 and a lead 340.Yet, because antenna 300 is the intraware of antenna assembly 100, so in Figure 1A, all be that a dotted line is indicated explanation.
Please continue with reference to Figure 1A.Metallic conductor 310 is arranged in the loam cake 210.Circuit board 320 is arranged in the lower cover 220 and has a ground plane 322.Match circuit 330 is formed on the circuit board 320, and comprises one first metalwork 331, one second metalwork 332 and an electric capacity 333.Second metalwork 332 has a signal feed-in point 334, and forms a gap 335 between second metalwork 332 and first metalwork 331.Electric capacity 333 is arranged on the gap 335, and electrically connects first metalwork 331 and second metalwork 332.340 in lead electrically connects first metalwork 331 and metallic conductor 310.
Further, antenna 300 sees through metallic conductor 310 and is received the external digital TV signal, and its digital television signal frequency range between 470MHz between the 870MHz; Then, via lead 340 signal is transferred in the match circuit 330 again, thereby effectively promote the operation frequency range of antenna 300, causing heals becomes to improving the ground receiving digital television signal.
In one embodiment, metallic conductor 310 has a rectangular appearance, and shown in Figure 1A, its size is about 9 centimetres and takes advantage of 5.4 centimetres.Yet the outward appearance of the metallic conductor 310 among the present invention is as limit, also can be polygon and has more abundant design flexibility.
Please be simultaneously with reference to Figure 1A and Figure 1B, wherein Figure 1B is the end view that illustrates the antenna assembly 100 among Figure 1A.As shown in the figure, housing 200 also comprises a pivot 230, articulates loam cake 210 and lower cover 220, and wherein loam cake 210 forms an angle theta with lower cover 220, and the angle theta scope is that 0 degree is to 180 degree.Therefore, by mechanism's connected mode of pivot 230, the degree of freedom that provides antenna assembly 100 1 to turn to lift can with the matching status of adjustment antenna 300, and then make it have preferable radiation field of aerial shape and radiation efficiency by adjusting the angle value of angle theta.What is more, pivot 230 can design so that loam cake 210 is fastened in a special angle with lower cover 220, and for example angle theta is 90 degree or 150 degree etc.
Moreover antenna 300 also comprises a metal rotating shaft 350, is arranged in the pivot 230, and electrically connects metallic conductor 310 and ground plane 332.Metal rotating shaft 350 comprises one first connecting portion 351 and one second connecting portion 352, in order to connect metallic conductor 310 and ground plane 332 respectively.In addition,, be familiar with this skill person, with the definitely clear internal layer or the bottom surface that also can be arranged at circuit board 320 to above-mentioned ground plane 332 though the ground plane 332 in the present embodiment is to be provided with to be formed on the circuit board 320.
Then, please be simultaneously with reference to Figure 1A and Fig. 1 C, wherein Fig. 1 C is the match circuit 330 that illustrates among Figure 1A.Wherein first metalwork, 331, the second metalworks 332 are metal material with signal feed-in point 334, and its complementary space is a medium.As shown in the figure, in one embodiment, first metalwork 331 and second metalwork 332 are all the printed traces on the circuit board 320.Yet first metalwork 331 and second metalwork 332 also can utilize the etching technique mode to be formed on the circuit board.In another embodiment, first metalwork 331 has a ring-type outward appearance, and second metalwork 332 has a rectangular appearance, and second metalwork 332 can be by changing its face shaping and area size, to satisfy impedance matching.
In addition, in another embodiment, the electric capacity 333 that is disposed on the gap 335 can be a chip capacity, and its capacitance is between between the 1pF to 2pF, to electrically connect first metalwork 331 and second metalwork 332, cause match circuit 330 in operation frequency range, have preferable impedance matching.
Please be simultaneously with reference to Figure 1A and Fig. 1 D, wherein Fig. 1 D is the lead 340 that illustrates among Figure 1A.In one embodiment, lead 340 comprises one first end 341 and one second end 342, electrically connects the metallic conductor 310 and first metalwork 331 respectively, and first end 341 and second end 342 all have a ring-type outward appearance.Yet shown in Figure 1A, second end 342 of lead 340 has identical pore size with first metalwork 331, and again by fixture (not illustrating), for example screw etc. is fixedly connected on the circuit board 320.
In addition, in an embodiment again, antenna assembly 100 also comprises at least one communication module 400 and is formed on the circuit board, and is electrically connected to signal feed-in point 334.So will be seen through antenna assembly 100 connections one display unit, and can carry out digital television receiving and watch.
Please refer to Fig. 2 and Fig. 3, Fig. 2 illustrates according to the antenna assembly 100 of Figure 1A to be 90 S when spending in its angle theta
11The DATA REASONING value; Fig. 3 illustrates according to the antenna assembly 100 of Figure 1A to be 150 S when spending in its angle theta
11The DATA REASONING value.Wherein, S
11Parameter is represented reflection loss (Return Loss).By the reflection loss shown in the measurement data among the figure as can be known, when the angle theta between loam cake 210 and the lower cover 220 is big more, the reception frequency range of its antenna 300 is then corresponding to the low frequency skew, thereby can look closely it and use on-site TV signal frequency, by this degree of freedom that turns to lift, cause the radiation efficiency and the usefulness that improve in the received signal process with appositely.
Then please refer to Fig. 4, this is the vertical view of the antenna of another embodiment of the present invention.Among this embodiment, explanation for simplicity, the part identical with previous embodiment repeats no more.Present embodiment also is provided with the line of rabbet joint 510 on metallic conductor 310.The line of rabbet joint 510 can be considered the another kind of form of antenna, and capacitance is designed to cause match circuit more than the 50pF in operation frequency range in this embodiment, has preferable impedance matching.Please be simultaneously with reference to Fig. 5, the antenna that this figure illustrates present embodiment is 150 S when spending in angle theta
11The DATA REASONING value.By among the figure as can be known under equal angular, the more aforesaid embodiment of present embodiment has more matching effect in 470MHz to the 870MHz frequency range.
In the present embodiment, metal rotating shaft 350 electrically connects metallic conductor 310 and ground plane.So, in other embodiments,, be not electrically connected to ground plane and have except that the line of rabbet joint 510 metal rotating shaft 350 can only be electrically connected at metallic conductor.At this moment, capacitance still is set at more than the 50pF, but can adjust capacitance at actual design, to obtain best matching state.
Then please be simultaneously with reference to Fig. 6 A and Fig. 6 B.Fig. 6 A and Fig. 6 B are respectively antenna assembly and have facing of circuit board section and end view.In order to make antenna assembly that better reception degree can be arranged, present embodiment also is arranged with first parallel metal sheet 520 and second parallel metal sheet 530 respectively in parallel in the both sides up and down of circuit board 320.And 320 of parallel metal sheet 520,530 and circuit boards are provided with metal clips 540, to connect parallel metal sheet 520,530 and circuit board 320.By the setting of parallel metal sheet 520,530, can completely cut off extraneous noise, and increase area of dissipation, allow antenna assembly that better reception ability can be arranged.
Though the present invention discloses as above with execution mode; right its is not in order to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (13)
1. an antenna assembly is characterized in that, comprises:
One housing comprises a loam cake and a lower cover; And
One antenna is arranged in this housing, and comprises:
One metallic conductor is arranged in this loam cake;
One circuit board is provided with in this lower cover and has a ground plane;
One match circuit is formed on this circuit board, and comprises:
One first metalwork;
One second metalwork has a signal feed-in point, and forms a gap between this second metalwork and this first metalwork; And
One electric capacity is arranged on this gap, and electrically connects this first metalwork and this second metalwork; And
One lead electrically connects this metallic conductor and this first metalwork.
2. antenna assembly according to claim 1 is characterized in that, this signal feed-in point is in order to receive the Digital Television frequency range of 470MHz to 870MHz.
3. antenna assembly according to claim 1 is characterized in that this housing also comprises a pivot, articulates this loam cake and this lower cover.
4. antenna assembly according to claim 3 is characterized in that this antenna also comprises a metal rotating shaft, is arranged in this pivot, and electrically connects this metallic conductor and this ground plane.
5. antenna assembly according to claim 4 is characterized in that this metallic conductor also has a line of rabbet joint.
6. antenna assembly according to claim 5 is characterized in that, this electric capacity is a chip capacity, and the capacitance of this electric capacity is more than the 50pF.
7. antenna assembly according to claim 3 is characterized in that this antenna also comprises a metal rotating shaft, is arranged in this pivot, and electrically connects this metallic conductor.
8. antenna assembly according to claim 7 is characterized in that this metallic conductor also has a line of rabbet joint.
9. antenna assembly according to claim 8 is characterized in that, this electric capacity is a chip capacity, and the capacitance of this electric capacity is more than the 50pF.
10. antenna assembly according to claim 1 is characterized in that, this electric capacity is a chip capacity, and its capacitance is between between the 1pF to 2pF.
11. antenna assembly according to claim 1 is characterized in that, this first metalwork has a ring-type outward appearance, and this second metalwork has a rectangular appearance.
12. antenna assembly according to claim 1 is characterized in that, this lead comprises one first end and one second end, electrically connects this metallic conductor and this first metalwork respectively, and this first end and this second end all have a ring-type outward appearance.
13. an antenna assembly is characterized in that, comprises:
One housing comprises a loam cake and a lower cover; And
One antenna is arranged in this housing, and comprises:
One metallic conductor is arranged in this loam cake;
One circuit board is provided with in this lower cover and has a ground plane;
One match circuit is formed on this circuit board, and comprises:
One first metalwork;
One second metalwork has a signal feed-in point, and forms a gap between this second metalwork and this first metalwork; And
One electric capacity is arranged on this gap, and electrically connects this first metalwork and this second metalwork;
One lead electrically connects this metallic conductor and this first metalwork;
Two parallel metal sheets are set in parallel in this circuit board two sides respectively; And
Several metal clipss are arranged between this circuit board and this parallel metal sheet, and those metal clipss electrically connect this circuit board and this parallel metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102998739A CN101982896A (en) | 2010-09-28 | 2010-09-28 | Antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102998739A CN101982896A (en) | 2010-09-28 | 2010-09-28 | Antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101982896A true CN101982896A (en) | 2011-03-02 |
Family
ID=43619790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102998739A Pending CN101982896A (en) | 2010-09-28 | 2010-09-28 | Antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101982896A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855541A (en) * | 2012-12-05 | 2014-06-11 | 纬创资通股份有限公司 | Power connector and electronic device |
| CN106465556A (en) * | 2016-07-21 | 2017-02-22 | 北京小米移动软件有限公司 | Metal cover and electronic equipment |
| CN106972252A (en) * | 2017-04-30 | 2017-07-21 | 电子科技大学 | A kind of handheld device mutli-system integration formula antenna |
| CN107659681A (en) * | 2017-09-27 | 2018-02-02 | 广州三星通信技术研究有限公司 | Drive circuit and driving method for metal rear shell mobile phone |
| CN109494477A (en) * | 2017-09-12 | 2019-03-19 | 中兴通讯股份有限公司 | Device antenna and foldable device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI259605B (en) * | 2005-10-04 | 2006-08-01 | Univ Nat Sun Yat Sen | A DTV receiving antenna |
| CN1957504A (en) * | 2004-10-28 | 2007-05-02 | 松下电器产业株式会社 | Foldable portable radio |
| CN101030576A (en) * | 2006-03-03 | 2007-09-05 | 精工爱普生株式会社 | Electronic substrate, semiconductor device, and electronic device |
| WO2008108607A1 (en) * | 2007-03-08 | 2008-09-12 | Ace Antenna Corp. | Multi band built-in antenna |
-
2010
- 2010-09-28 CN CN2010102998739A patent/CN101982896A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957504A (en) * | 2004-10-28 | 2007-05-02 | 松下电器产业株式会社 | Foldable portable radio |
| TWI259605B (en) * | 2005-10-04 | 2006-08-01 | Univ Nat Sun Yat Sen | A DTV receiving antenna |
| CN101030576A (en) * | 2006-03-03 | 2007-09-05 | 精工爱普生株式会社 | Electronic substrate, semiconductor device, and electronic device |
| WO2008108607A1 (en) * | 2007-03-08 | 2008-09-12 | Ace Antenna Corp. | Multi band built-in antenna |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855541A (en) * | 2012-12-05 | 2014-06-11 | 纬创资通股份有限公司 | Power connector and electronic device |
| CN106465556A (en) * | 2016-07-21 | 2017-02-22 | 北京小米移动软件有限公司 | Metal cover and electronic equipment |
| CN106972252A (en) * | 2017-04-30 | 2017-07-21 | 电子科技大学 | A kind of handheld device mutli-system integration formula antenna |
| CN109494477A (en) * | 2017-09-12 | 2019-03-19 | 中兴通讯股份有限公司 | Device antenna and foldable device |
| US11121454B2 (en) | 2017-09-12 | 2021-09-14 | Zte Corporation | Antenna for device and foldable device |
| CN109494477B (en) * | 2017-09-12 | 2022-01-07 | 中兴通讯股份有限公司 | Device antenna and foldable device |
| CN107659681A (en) * | 2017-09-27 | 2018-02-02 | 广州三星通信技术研究有限公司 | Drive circuit and driving method for metal rear shell mobile phone |
| CN107659681B (en) * | 2017-09-27 | 2020-07-28 | 广州三星通信技术研究有限公司 | Drive circuit and drive method for metal back shell mobile phone |
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| PB01 | Publication | ||
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Application publication date: 20110302 |