CN102055060B - Communication device with embedded antenna - Google Patents
Communication device with embedded antenna Download PDFInfo
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- CN102055060B CN102055060B CN2009102097091A CN200910209709A CN102055060B CN 102055060 B CN102055060 B CN 102055060B CN 2009102097091 A CN2009102097091 A CN 2009102097091A CN 200910209709 A CN200910209709 A CN 200910209709A CN 102055060 B CN102055060 B CN 102055060B
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- circuit board
- printed circuit
- pcb
- flush type
- type antenna
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Abstract
The invention relates to a communication device with an embedded antenna. The communication device comprises a printed circuit board and an embedded antenna; the embedded antenna comprises at least one radiation element, at least one feed element and a connection element, wherein each feed element is coupled to one of the radiation elements and the printed circuit board, the connection element is coupled to the at least one radiation element and comprises a first connecting part and a second connection part, and the connection element and the at least one radiation element form a ring-shaped structure so that the embedded antenna is sleeved on one side edge of the printed circuit board.
Description
Technical field
The present invention is about a kind of communicator with flush type antenna, and particularly a kind of have on a printed circuit board (PCB) that can be set in this communicator, and together carry out the communicator of the flush type antenna of surface mounting technology processing procedure.
Background technology
Cordless communication network is the main path of popular contact and transmission information in modernized society, the radio communication devices such as mobile phone, personal digital assistant (PDA) or Wireless USB transmitter (Wireless USB Dongle) are also more and more universal in daily life, and develop towards miniaturization, the manufacturing process of radio communication device also strives for simplification, to reduce costs and to improve production capacity.In radio communication device, except printed circuit board (PCB) (Printed Circuit Board, PCB) outside, another element that occupies larger volume is antenna, that to take the flush type antenna (EmbeddedAntenna) that sheet metal forms be one of main flow, in order to can design more flexibly the outward appearance of radio communication device, meet the popular demand for property easy to carry simultaneously.
Electronic component on printed circuit board (PCB) is surface mounting technology (the Surface Mount Technology that utilizes automation, SMT) processing procedure, with printed circuit board (PCB), engage, but traditional flush type antenna does not belong to element pasted on surface, can't be assembled by the surface mounting technology processing procedure, and must be by extra assembly program.The assemble method of tradition flush type antenna has two kinds, and the one, after printed circuit board (PCB) carries out the surface mounting technology processing procedure, manually antenna is welded on printed circuit board (PCB); Another must not pass through welding processing, but, with the metal clips on printed circuit board (PCB), with the antenna on the shell that is arranged on radio communication device, contacts.The required cost of the assemble method of above-mentioned two kinds of flush type antennas is higher, also easily because of human error, causes the characteristic of antenna unstable.In addition, according to the formed radio communication device of above-mentioned assemble method, the total height of its device mainly adds that by the height of printed circuit board (PCB) the height of flush type antenna is determined, the height that can save is limited.
As from the foregoing, traditional flush type antenna needs extra assembly program, causes the manufacturing cost of radio communication device to increase, and must improvement just can take into account the target of miniaturization and high production capacity.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of communicator with flush type antenna.
The present invention discloses a kind of communicator with flush type antenna, comprises a printed circuit board (PCB) and a flush type antenna.This flush type antenna comprises at least one radiant element; At least one feed-in element, this at least one feed-in element wherein each feed-in element is couple to a wherein radiant element and this printed circuit board (PCB) of this at least one radiant element; And a Connection Element, be couple to this at least one radiant element, comprise one first connecting portion and one second connecting portion, this Connection Element and this at least one radiant element form a cyclic structure, and this flush type antenna is set on a side of this printed circuit board (PCB).
The accompanying drawing explanation
The schematic diagram that Fig. 1 is the embodiment of the present invention one communicator.
The top view of the printed circuit board (PCB) 11 that Fig. 2 A is Fig. 1.
The lower view of the printed circuit board (PCB) 11 that Fig. 2 B is Fig. 1.
The plane outspread drawing that Fig. 3 is flush type antenna in Fig. 1.
The schematic diagram that Fig. 4 to Fig. 7 is embodiment of the present invention communicator.
The main element symbol description
10,40,50,60,70 communicators
11,51,61 printed circuit board (PCB)s
12,52,62,72 flush type antennas
120A, 120B, 620,720A, 720B radiant element
122A, 122B, 422A, 422B feed-in element
124,624 Connection Elements
126,128,128L, 128R, 626,628 connecting portions
130,132,132L, 132R, 430,530 retaining elements
134,136,534,634,636 barrier elements
F1～F6 stop part
A～D metal area
The width of W, W ' printed circuit board (PCB)
The height of H printed circuit board (PCB)
The G spacing
Embodiment
Please refer to Fig. 1, the schematic diagram that Fig. 1 is the embodiment of the present invention one communicator 10.Communicator 10 can be the radio communication devices such as mobile phone, personal digital assistant (PDA) or Wireless USB transmitter (Wireless USB Dongle), comprise a printed circuit board (PCB) (Printed Circuit Board, PCB) 11 and one flush type antenna (Embedded Antenna) 12.Printed circuit board (PCB) 11 is used for realizing the function of communicator 10, and it may comprise radio circuit, modulating/demodulating circuit processed etc., viewing system demand and determining.Flush type antenna 12 is one to be applied to the antenna of two two receipts (2T2R) system, and whereby, communicator 10 can be realized the application of two transmission ends and two receiving terminals.In addition, in Fig. 1, printed circuit board (PCB) 11 and flush type antenna 12 are unconjugated state still.Describe in detail simultaneously with reference to figure 2A, Fig. 2 B and Fig. 3.
At first, Fig. 2 A and Fig. 2 B are respectively top view and the lower view of the printed circuit board (PCB) 11 of Fig. 1.The storing zone of the electronic component that the superiors of printed circuit board (PCB) 11 and the bottom are communicator 10, ground plane (Ground Plane) is to be positioned at wherein one deck of printed circuit board (PCB) 11.The superiors of printed circuit board (PCB) 11 and one side of the bottom are provided with metal area A～D, as shown in hatched example areas.Metal area A～D is the dew copper zone of in the manufacture process of printed circuit board (PCB) 11, not going up green paint, and wherein metal area A, B are the signal feed-in point on printed circuit board (PCB) 11.Metal area C, D lay respectively at the upper and lower plane of printed circuit board (PCB) 11, and metal area A, B and metal area C are positioned at same plane.Then, please also refer to Fig. 1 and Fig. 3, the plane outspread drawing that Fig. 3 is flush type antenna 12.Flush type antenna 12 is two planar inverted F-shape antennas (Planner Inverted-F Antenna, PIFA) combination, formed by sheet metal, comprise radiant element 120A, 120B, feed-in element 122A, 122B, Connection Element 124, retaining element 130,132 and barrier element 134,136.
Retaining element 130 is couple to connecting portion 126, with connecting portion 126 at same plane; Retaining element 132 is couple to connecting portion 128, with connecting portion 128 at same plane.Note that flush type antenna 12 is for planar inverted F-shape antenna, so have a ground plane that must be couple to printed circuit board (PCB) 11 in retaining element 130 and retaining element 132 at least, or two retaining elements all are couple to ground plane.Barrier element 134 and barrier element 136 all are couple between connecting portion 126 and connecting portion 128, and the plane at its place is mutually vertical with the plane at connecting portion 126 and connecting portion 128 places, as the purposes of location.When flush type antenna 12 is set in a side of printed circuit board (PCB) 11, existence due to barrier element 134 and barrier element 136, printed circuit board (PCB) 11 is unlikely to out of position, therefore feed-in element 122A and feed-in element 122B can aim at respectively metal area A and the metal area B on printed circuit board (PCB) 11, simultaneously, retaining element 130 and retaining element 132 also can be aimed at respectively metal area C and the metal area D on printed circuit board (PCB) 11, and metal area C and metal area D wherein have at least a metal area to be connected to the ground plane of printed circuit board (PCB) 11.
In addition, stop part F1, F2 on aforementioned feed-in element 122A, 122B and stop part F3, F4 on connecting portion 126,128, F5, F6 are also as the purposes of locating, make radiant element 120A, 120B and printed circuit board (PCB) 11 keep spacing G, the radiofrequency signal of avoiding radiant element 120A, 120B to transmit is subject to the noise effect on the ground plane of printed circuit board (PCB) 11 peripheries.At this, please note, the purpose of stop part F1～F6 is in order to keep the spacing of printed circuit board (PCB) 11 and radiant element 120A, 120B, the present invention does not limit to the entity form of stop part F1～F6, it can be the groove shown in Fig. 1, in other embodiment of the present invention, can also be salient point (forming in the manufacture process of flush type antenna 12 equally).
As from the foregoing, Connection Element 124 and the formed cyclic structure of radiant element 120A, 120B add barrier element 134 and barrier element 136, form a cap-like structure, and flush type antenna 12 can be set on printed circuit board (PCB) 11.Carry out surface mounting technology (Surface Mount Technology at printed circuit board (PCB) 11, SMT) after the coating tin cream program of processing procedure, can utilize a number of assembling steps that flush type antenna 12 is set on printed circuit board (PCB) 11, next, flush type antenna 12 carries out automation together with printed circuit board (PCB) 11 and mounts program, finally together by reflow stove (Reflow).Thus, feed-in element 122A, the 122B of flush type antenna 12 are fixed on metal area A, the B on printed circuit board (PCB) 11 in the electric connection mode respectively, and retaining element 130,132 also is connected respectively to metal area C, D; In other words, flush type antenna 12, by the surface mounting technology processing procedure, is fixed on printed circuit board (PCB) 11.
Briefly, design according to the flush type antenna 12 of Fig. 1, the assembly program of communicator 10 only must increase by a step, before automation mounts program, flush type antenna 12 is set on printed circuit board (PCB) 11, and once two antenna assemblies is completed in fact.The flush type antenna of the communicator of tradition 2T2R must be manually to weld twice, and under comparing, the assembling flow path of the flush type antenna 12 of communicator 10 is simple and easy, has reduced the issuable error of artificial welding simultaneously, significantly improves the production yields.In addition, as shown in Figure 1, flush type antenna 12 is as cap, and with printed circuit board (PCB) 11 combinations, radiant element 120A, the 120B of flush type antenna 12 will be positioned at the dual-side of printed circuit board (PCB) 11.Thus, the height of communicator 10 is mainly determined by flush type antenna 12.For instance, if the height of flush type antenna 12 is 4 millimeters, the height of printed circuit board (PCB) 11 is 2 millimeters, and the total height of communicator 10 (not containing casing) equals 4 millimeters, wherein the overlapping height that comprises printed circuit board (PCB) 11.Under identical element heights condition, the height that the total height of traditional communication device equals printed circuit board (PCB) adds the height of flush type antenna, equals 6 millimeters.Under comparing, the height of the communicator of the embodiment of the present invention can minimize, and on the exterior design of communicator, has more advantage.
In addition, as shown in Figure 3, flush type antenna 12 can be manufactured by integrated mode, and the sheet metal that in flush type antenna 12, all elements are actually by a complete not segmentation is bent to form.Due to the integrated cause of antenna, connecting portion 128 further is divided into 128L, 128R, and retaining element 132 is split into 132L, 132R, by the surface mounting technology processing procedure, together is electrically connected to the metal area C on printed circuit board (PCB) 11.Should be noted, the communicator 10 of Fig. 1 is only one embodiment of the invention, and this area tool knows that the knowledgeable is when doing according to this different variations and modification usually.Simultaneously, the implementation that the integrated flush type antenna 12 shown in Fig. 3 is flush type antenna 12, in order to simplify production procedure, but be not limited to this, and flush type antenna 12 can also be assembled by the multi-disc sheet metal.In addition, in embodiments of the present invention, form, quantity and the position of the radiant element of flush type antenna 12, retaining element, barrier element, groove type stop part, all design of visible system demand elasticity ground.
Please refer to Fig. 4 to Fig. 7, it is respectively the schematic diagram of the communicator 40,50,60,70 of the embodiment of the present invention, and the alternate embodiment of the communicator 10 that each communicator is Fig. 1 is assembled by a printed circuit board (PCB) and a flush type antenna equally.In communicator 40,50,60,70, the function of each element and annexation can be learnt with reference to Fig. 1, describe no longer one by one, below different part only are described.In Fig. 4, the flush type antenna of communicator 40 does not comprise barrier element.Before the automation of carrying out the surface mounting technology processing procedure at printed circuit board (PCB) mounts program, can utilize tool to replace the function of barrier element, flush type antenna is set on printed circuit board (PCB), makes feed-in element 422A, the 422B of flush type antenna and a retaining element 430 aim at corresponding metal area on printed circuit board (PCB).Thus, flush type antenna can complete the surface mounting technology processing procedure together with printed circuit board (PCB), is assembled on printed circuit board (PCB), and does not need extra artificial welding step.In addition, the retaining element of the flush type antenna of communicator 40 only has one, though this is because feed-in element 422A, 422B are signal feed-in point, but also provides fixed function (utilizing tin cream to be combined with printed circuit board (PCB)).
In Fig. 5, one printed circuit board (PCB) 51 of communicator 50 is different from the printed circuit board (PCB) 11 of communicator 10, the edges of boards of the ground plane on printed circuit board (PCB) 51 and printed circuit board (PCB) 51 keep a fixed range, equal the spacing G in Fig. 1, the wide W ' of the plate of printed circuit board (PCB) 51 is greater than the wide W of plate of printed circuit board (PCB) 11; In other words, the edges of boards of printed circuit board (PCB) 51 have a headroom district.Retaining element and barrier element that one flush type antenna 52 of communicator 50 is included respectively only have one, as the retaining element 530 in Fig. 5 and a barrier element 534, and the groove type stop part is not set on feed-in element and connecting portion, this is due to the ground plane of the printed circuit board (PCB) 51 spacing G apart from edges of boards, enough make the radiofrequency signal that the radiant element of flush type antenna transmits not be subject to the noise jamming on ground plane, therefore do not need to use the groove type stop part with the distance between the radiant element that keeps printed circuit board (PCB) 51 and flush type antenna.In addition, by suitably designing the size and location of barrier element 534, even flush type antenna 52 only has a barrier element, also can bring into play the function of printed circuit board (PCB) 51 location.
In the above-described embodiments, flush type antenna is that the antenna of take for the 2T2R system is example, the not specific restriction of the antenna amount of flush type antenna in fact of the present invention, can only there is one, also can have more than two, Fig. 6 for example, wherein a flush type antenna 62 of communicator 60 is the single plane inverted F shaped antenna.Although flush type antenna 62 only has a radiant element 620, a junction 626 that one Connection Element 624 of flush type antenna 62 is included and a junction 628 still can form a cyclic structure with radiant element 620, and form a cap-like structure with barrier element 634,636, therefore, flush type antenna 62 can be set in the side of a printed circuit board (PCB) 61 of communicator 60, and the automation that then together completes the surface mounting technology processing procedure with printed circuit board (PCB) 61 mounts program and reflow program.Those skilled in the art can do further variation by flush type antenna 62 according to previous embodiment, for example retaining element or barrier element are reduced to one, or change the design of printed circuit board ground face, and cancel the groove type stop part, are not repeated herein.
Note that the flush type antenna in Fig. 1 to Fig. 6 take planar inverted F-shape antenna as example, yet the flush type antenna of the embodiment of the present invention is not limited to use planar inverted F-shape antenna, also can use the antenna of unipole antenna (Monopole Antenna) or other form.For instance, in Fig. 7, the combination that a flush type antenna 72 of communicator 70 is two unipole antennas, the form of radiant element 720A, 720B that flush type antenna 72 is included is different from radiant element 120A, 120B in Fig. 1.In addition, due to the combination that flush type antenna 72 is unipole antenna, the retaining element of flush type antenna 72 needn't be connected with the ground plane of printed circuit board (PCB).This area tool knows that the knowledgeable, when flush type antenna 72 being done to further variation according to previous embodiment, is not repeated herein usually.
In sum, in the communicator of the embodiment of the present invention, printed circuit board (PCB) is and the flush type antenna collocation design, therefore, the assembly program of communicator only must increase by a step,, after printed circuit board (PCB) carries out the solder paste coating program, flush type antenna is set on printed circuit board (PCB).The automation that flush type antenna can together carry out the surface mounting technology processing procedure with printed circuit board (PCB) mounts program and reflow program, is fixed on printed circuit board (PCB) exactly.Thus, can avoid in the assembly program of traditional communication device, due to high assembly cost and the antenna performance error that manually the welding antenna causes.In addition, the flush type antenna of the embodiment of the present invention is more easily assembling not only, further can make the shared space of flush type antenna and printed circuit board (PCB) overlapped, obtains the height of minimized communicator.
The foregoing is only the preferred embodiments of the present invention, all equalizations of doing according to the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. the communicator with flush type antenna comprises:
One printed circuit board (PCB); And
One flush type antenna comprises:
At least one radiant element;
At least one feed-in element, this at least one feed-in element wherein each feed-in element is couple to a wherein radiant element and this printed circuit board (PCB) of this at least one radiant element; And
One Connection Element, be couple to this at least one radiant element, comprises one first connecting portion and one second connecting portion, and this Connection Element and this at least one radiant element form a cyclic structure, and this flush type antenna is set on a side of this printed circuit board (PCB).
2. communicator according to claim 1, wherein this flush type antenna separately comprises at least one retaining element, is couple to this Connection Element, is used for the electrical combination of at least one metal area on this flush type antenna and this printed circuit board (PCB).
3. communicator according to claim 2, wherein a retaining element of this at least one retaining element is couple to a ground plane of this printed circuit board (PCB).
4. communicator according to claim 1, wherein this flush type antenna separately comprises at least one barrier element, be couple to this Connection Element, be used for when this flush type antenna is set in this side of this printed circuit board (PCB), make at least one metal area on this at least one this printed circuit board (PCB) of feed-in element alignment.
5. communicator according to claim 1, wherein each radiant element of this at least one radiant element and this printed circuit board (PCB) are at a distance of a predeterminable range.
6. communicator according to claim 5, wherein each feed-in element of this at least one feed-in element comprises a stop part, is used for keeping this predeterminable range between this printed circuit board (PCB) and this each radiant element.
7. communicator according to claim 5, wherein the both sides of this first connecting portion and this second connecting portion comprise respectively a stop part, are used for keeping this predeterminable range between this printed circuit board (PCB) and this each radiant element.
8. communicator according to claim 1, wherein this flush type antenna is formed by least one sheet metal.
9. communicator according to claim 1, wherein this flush type antenna is a planar inverted F-shape antenna.
10. communicator according to claim 1, wherein this flush type antenna is a unipole antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102097091A CN102055060B (en) | 2009-10-30 | 2009-10-30 | Communication device with embedded antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102097091A CN102055060B (en) | 2009-10-30 | 2009-10-30 | Communication device with embedded antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102055060A CN102055060A (en) | 2011-05-11 |
| CN102055060B true CN102055060B (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102097091A Active CN102055060B (en) | 2009-10-30 | 2009-10-30 | Communication device with embedded antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN102055060B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002064315A (en) * | 2000-08-17 | 2002-02-28 | Sony Corp | Antenna device and portable radio equipment |
| CN1797844A (en) * | 2004-12-30 | 2006-07-05 | 宏达国际电子股份有限公司 | Mobile communication device and antenna of satellite positioning system |
| CN201060951Y (en) * | 2007-05-24 | 2008-05-14 | 中兴通讯股份有限公司 | Contact connecting structure between antenna and PCB board and equipment using the structure |
| CN101276960A (en) * | 2007-03-29 | 2008-10-01 | 耀登科技股份有限公司 | Wide band antenna structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7274340B2 (en) * | 2005-12-28 | 2007-09-25 | Nokia Corporation | Quad-band coupling element antenna structure |
-
2009
- 2009-10-30 CN CN2009102097091A patent/CN102055060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002064315A (en) * | 2000-08-17 | 2002-02-28 | Sony Corp | Antenna device and portable radio equipment |
| CN1797844A (en) * | 2004-12-30 | 2006-07-05 | 宏达国际电子股份有限公司 | Mobile communication device and antenna of satellite positioning system |
| CN101276960A (en) * | 2007-03-29 | 2008-10-01 | 耀登科技股份有限公司 | Wide band antenna structure |
| CN201060951Y (en) * | 2007-05-24 | 2008-05-14 | 中兴通讯股份有限公司 | Contact connecting structure between antenna and PCB board and equipment using the structure |
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| CN102055060A (en) | 2011-05-11 |
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Owner name: LIANFA SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: RALINK TECHNOLOGY INC. Effective date: 20140723 |
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Effective date of registration: 20140723 Address after: Hsinchu Science Industrial Park, Taiwan, China Patentee after: MediaTek.Inc Address before: Hsinchu County, Taiwan, China Patentee before: Ralink Technology Inc. |