CN202871964U - Clear ground free antenna system - Google Patents
Clear ground free antenna system Download PDFInfo
- Publication number
- CN202871964U CN202871964U CN 201220429008 CN201220429008U CN202871964U CN 202871964 U CN202871964 U CN 202871964U CN 201220429008 CN201220429008 CN 201220429008 CN 201220429008 U CN201220429008 U CN 201220429008U CN 202871964 U CN202871964 U CN 202871964U
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- Prior art keywords
- sulculus
- shaped groove
- pcb board
- headroom
- antenna
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Abstract
The present utility model relates to a clear ground free antenna system. The system comprises a PCB and an antenna part, the antenna part is connected on a metal area of the PCB, the antenna part comprises a grounding area, a feed area and an antenna radiation area, the grounding area is connected on the PCB through a conductor, a signal source is added between the feed area and the PCB, and the grounding area, the feed area and the antenna radiation area are respectively corresponding to an antenna groove. Compared with the traditional PIFA antenna, the system has better resonance bandwith, the performance is more balanced in low frequency, the RF bandwith is almost the same when a mobile terminal is held by a left hand or a right hand, and the balanced performance is better when the terminal is held by the left hand and the right hand.
Description
Technical field
The utility model relates to a kind of terminal antenna, and is particularly a kind of without headroom ground antenna system.
Background technology
Antenna is as the carrier of portable terminal acceptance and emitting electromagnetic wave.In recent years, be used for design and the performance of the mobile terminal antenna of radio communication, more and more affect the developing direction of mobile communication.Particularly portable mobile termianl such as mobile phone, PDA(Personal Digital Assistance, namely the personal digital assistant generally refers to palmtop PC, such as MP3/MP4 etc.).At first, the multiband of mobile communication.GSM850/GSM900, DCS, PCS, UMTS is the main flow of communication always, its range of frequency bandwidths is 824MHz-960MHz, 1710MHz-2170MHz.Along with the development of LTE (Long Term Evolution, Long Term Evolution), single antenna more and more difficulty covers all frequency bandwidth demands fully.Variation along with Cell Phone Design and function, the smart mobile phone of PDA formula is more and more universal, with respect to traditional stick-type phone, clamshell handset, cover-slide-type handset, novel smart mobile phone is more paid attention to the user and is experienced, and the user breaks away from keyboard operation fully, the LCD display of super large almost with the mobile phone equal in length.
In the prior art, terminal antenna comprises PCB(Printed circuit board, claim again printed circuit board (PCB), the supplier of electronic devices and components electrical connection) plate and antenna part, the junction of pcb board and antenna part is headroom ground, the metal that is the junction is all emptied, such as PIFA antenna (Planar Inverted F Antenna---planar inverted-F antenna), therefore, radio frequency bandwidth when holding portable terminal from the right hand when causing people to hold portable terminal leftward is different, and equalization performance is poor in the situation that the right-hand man holds.
The utility model content
It is a kind of without headroom ground antenna system that the purpose of this utility model is to provide, the different technical problem of radio frequency bandwidth when holding portable terminal from the right hand when holding portable terminal to solve leftward in the prior art.
In order to address the above problem, it is a kind of without headroom ground antenna system that the utility model provides, comprise pcb board and antenna part, described antenna part is connected on the metallic region of described pcb board, described antenna part comprises ground area, feeder section and aerial radiation zone, described ground area is connected on the described pcb board by conductor, is added with signal source between described feeder section and the described pcb board, the respectively corresponding antenna fluting in described ground area, feeder section and aerial radiation zone.
Described described antenna part is the conductor that supports on the supporter of an entity without headroom ground antenna system according to the utility model preferred embodiment, and the lower surface of this supporter is close on the metallic region of described pcb board, and upper surface is curved surface.
Described without headroom ground antenna system according to the utility model preferred embodiment, described antenna fluting comprises a T-shaped groove, described T-shaped groove correspondence described aerial radiation zone, " one " groove below of described T-shaped groove upper end arranges one first sulculus and the second sulculus, described the first sulculus and the second sulculus are distributed in " Shu " groove both sides at described T-shaped groove middle part, the open communication of described T-shaped groove is in the afterbody of described T-shaped groove, described the first sulculus correspondence described feeder section, described the second sulculus correspondence described ground area, and the opening of described the first sulculus and the second sulculus lays respectively at its end.
Described without headroom ground antenna system according to the utility model preferred embodiment, at least one end of described T-shaped groove upper end " one " groove connects a U-shaped groove, and described U-shaped groove is communicated with described T-shaped groove.
Described without headroom ground antenna system, the opening of described the first sulculus and the second sulculus and the open communication of described T-shaped groove according to the utility model preferred embodiment.
Described without headroom ground antenna system according to the utility model preferred embodiment, described the first sulculus or/and the second sulculus be inverted "L" shaped groove or fall " U " and lack the type groove on one side and slightly.
Described without headroom ground antenna system according to the utility model preferred embodiment, in the described ground area in earth point and the described feeder section distance between the distributing point be 1/3rd pcb board width to three/two pcb board width.
Described the metallic region of described pcb board is level and smooth strip without headroom ground antenna system according to the utility model preferred embodiment, perhaps for having the strip of otch, groove, projection.
Described without headroom ground antenna system according to the utility model preferred embodiment, the metallic region of described pcb board is distributed in the Zone Full of described pcb board.
Described without headroom ground antenna system according to the utility model preferred embodiment, described antenna part be positioned at described metallic region directly over.
Compared with prior art, there is following technique effect in the utility model:
It is a kind of without headroom ground antenna system that the utility model provides, the junction of antenna part and pcb board does not need metal is emptied, but antenna part directly is connected on the metallic region of pcb board, be provided with the aerial radiation zone in antenna part, the ground area, feeder section and corresponding antenna fluting, has better resonant bandwidth than traditional PI FA antenna, has more balanced performance at low frequency, and, when holding portable terminal leftward and the radio frequency bandwidth of the right hand when holding portable terminal almost identical, in the situation that the right-hand man holds, have better equalization performance.
Description of drawings
Fig. 1 is a kind of structural representation without headroom ground antenna system of the utility model;
Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are respectively the structural representation of difform antenna fluting in the utility model antenna part;
Fig. 6 is the return loss plot of the utility model and traditional PI FA antenna;
Fig. 7 is the antenna efficiency of the utility model the first embodiment;
Fig. 8 is that the utility model and PIFA antenna are in the active radiant power of free space;
Fig. 9 is that the utility model and PIFA antenna hold the active radiant power in the situation leftward;
To be the utility model and PIFA antenna hold active radiant power in the situation at the right hand to Figure 10.
Embodiment
It is a kind of without headroom ground antenna system that the utility model provides, comprise pcb board and antenna part, antenna part is connected on the metallic region of pcb board, and does not namely draw metal only the junction of antenna part and pcb board, so the junction of antenna part and pcb board is without headroom ground.Antenna part comprises ground area, feeder section and aerial radiation zone, and the ground area is connected on the pcb board by conductor, is added with signal source between feeder section and the pcb board, the respectively corresponding antenna fluting in ground area, feeder section and aerial radiation zone.
In the utility model, comprise the metallic region of definite shape on the pcb board, metallic region can be that conventional strip is smooth strip, perhaps for having the strip of special-shaped otch, groove, projection, the utility model does not limit.Contain multi-layer PCB board and the metallic equivalent on stratum, metallic region and antenna part have the certain altitude interval, and antenna part is positioned at space directly over the metallic region.
In the utility model; concrete shape to the antenna fluting does not limit; every possess without headroom ground and in antenna part have the antenna fluting, and in the ground area in earth point and the feeder section distance between the distributing point be that the design of 1/3rd pcb board width to three/two pcb board width is all within protection range of the present utility model.Below in conjunction with accompanying drawing, lift a specific embodiment and described in detail.
Please refer to Fig. 1 and Fig. 2, a kind of without headroom ground antenna system, comprise pcb board 10 and antenna part 20, antenna part 20 is connected on the metallic region of pcb board 10, in the present embodiment, the metallic region of pcb board 10 is distributed in the whole of pcb board 10, and antenna part 20 is the conductor that supports on the supporter of an entity, the lower surface of this supporter is close on the metallic region of pcb board 10, and upper surface is curved surface.Antenna part 20 comprises ground area 201, feeder section 202 and aerial radiation zone 203, ground area 201 is connected on the pcb board 10 by conductor, feeder section 202 and pcb board 10 are non-directly to be contacted, be added with signal source between feeder section 202 and the pcb board 10, ground area 201, feeder section 202 and aerial radiation zone 203 respectively corresponding antenna flutings.In the present embodiment, in the ground area 201 in earth point and the feeder section 202 distance between the distributing point be approximately 1/3rd pcb boards, 10 width to three/two pcb boards, 10 width.
In the present embodiment, the antenna fluting comprises a T-shaped groove 205, T-shaped groove 205 correspondences aerial radiation zone 203, " one " groove below of T-shaped groove 205 upper ends arranges one first sulculus 207 and the second sulculus 206, the first sulculus 207 and the second sulculus 206 are distributed in " Shu " groove both sides at T-shaped groove 205 middle parts, the opening 209 of T-shaped groove is communicated in the afterbody of T-shaped groove 205, the first sulculus 207 correspondences feeder section 202, the second sulculus 206 correspondences ground area 201, the opening of the first sulculus 207 and the second sulculus 206 lays respectively at its end (be illustrated as the opening 208 of the first sulculus, the opening of the second corresponding sulculus 206 is also for the lower end of the second sulculus 206).The utility model does not limit the shape of the first sulculus 207 and the second sulculus 206, as long as satisfy the length of " one " groove of T-shaped groove 205 upper ends greater than the length of the first sulculus 207 and the second sulculus 206, namely the first sulculus 207 and the second sulculus 206 are positioned at corresponding zone under " one " grooves of T-shaped groove 205 upper ends.Preferably, the first sulculus 207 be " inverted "L" shaped groove or fall " U " and slightly short type groove on one side, the second sulculus 206 be " inverted "L" shaped groove or " U " Yi Bian and slightly lack the type groove.
In the present embodiment, at least one end of T-shaped groove 205 upper ends " " groove connects a U-shaped groove 204, and U-shaped groove 204 is communicated with described T-shaped groove 205.Any end that is T-shaped groove 205 upper ends " " groove all can be communicated with a U-shaped groove 204, and also the two ends of " one " groove all are communicated with a U-shaped groove 204, and perhaps, the two ends of " one " groove all do not connect a U-shaped groove 204, and the utility model does not limit this.
In the present embodiment, the opening of the first sulculus 207 and the second sulculus 206 can be communicated with the opening 209 of T-shaped groove, also can not be communicated with the opening 209 of T-shaped groove, and the utility model does not limit this.
To sum up to the narration of antenna fluting, illustrate one by one below in conjunction with the structure of concrete accompanying drawing to several antenna flutings.
Please refer to Fig. 2, corresponding to the T-shaped groove 205 in aerial radiation zone 203, all connect a U-shaped groove 204 at the two ends of " one " grooves of T-shaped groove 205 upper ends, " one " groove that two U-shaped grooves 204 are T-shaped groove 205 upper ends is communicated with, and in the present embodiment, two U-shaped grooves 204 needn't be symmetrical, certainly, symmetry also can; The end of T-shaped groove 205 connects a transverse opening, and therefore, T-shaped groove 205 looks and looks like a J type groove; Under " one " grooves of T-shaped groove 205 upper ends, one first sulculus 207 and the second sulculus 206 are set, the first sulculus 207 and the second sulculus 206 are distributed in " Shu " groove both sides at T-shaped groove 205 middle parts, and the length of " one " groove is greater than the length sum of the first sulculus 207 and the second sulculus 206; The first sulculus 207 is for falling " U " and the slightly short type groove in one side, the second sulculus 206 is with " U " of the first sulculus 207 mirror images and slightly lacks the type groove on one side, the opening of the first sulculus 207 and the second sulculus 206 all is positioned at down " U " and slightly lacks the lower end of type groove on one side, in the present embodiment, the first sulculus 207 and the second sulculus 206 sizes can be identical also can be different.
Please refer to Fig. 3, corresponding to the T-shaped groove 205 in aerial radiation zone 203, the opening 209 of T-shaped groove is positioned at the end of T-shaped groove 205; Under " one " grooves of T-shaped groove 205 upper ends, one first sulculus 207 and the second sulculus 206 are set, the first sulculus 207 and the second sulculus 206 are distributed in " Shu " groove both sides at T-shaped groove 205 middle parts, and the length of " one " groove is greater than the length sum of the first sulculus 207 and the second sulculus 206; In the present embodiment, the first sulculus 207 is for falling " U " and the slightly short type groove in one side, the second sulculus 206 is with " U " of the first sulculus 207 mirror images and slightly lacks the type groove on one side, the opening of the first sulculus 207 and the second sulculus 206 lays respectively at its lower end of falling " U " and slightly lacking the type groove on one side, the opening 209 of the first sulculus 207, the second sulculus 206 and T-shaped groove is interconnected, in the present embodiment, the lower end of T-shaped groove 205 arranges a breach, and the first sulculus 207 and the second sulculus 206 are all by the therewith breach connection of one " one " type groove.
Please refer to Fig. 4, corresponding to the T-shaped groove 205 in aerial radiation zone 203, connect a U-shaped groove 204 at the left end of " one " grooves of T-shaped groove 205 upper ends, the opening 209 of T-shaped groove is positioned at the end of T-shaped groove 205; Under " one " grooves of T-shaped groove 205 upper ends, one first sulculus 207 and the second sulculus 206 are set, the first sulculus 207 and the second sulculus 206 are distributed in " Shu " groove both sides at T-shaped groove 205 middle parts, and the length of " one " groove is greater than the length sum of the first sulculus 207 and the second sulculus 206; In the present embodiment, the first sulculus 207 is for falling " U " and the slightly short type groove in one side, the second sulculus 206 is with " U " of the first sulculus 207 mirror images and slightly lacks the type groove on one side, the opening of the first sulculus 207 and the second sulculus 206 lays respectively at it, and " fall " U " and the lower end of slightly short type groove on one side, the opening 209 of the first sulculus 207, the second sulculus 206 and T-shaped groove is interconnected.In the present embodiment, the lower end of T-shaped groove 205 arranges a breach, and the first sulculus 207 and the second sulculus 206 are all by the therewith breach connection of one " one " type groove.
Please refer to Fig. 5, T-shaped groove 205 corresponding to aerial radiation zone 203, two ends at " one " grooves of T-shaped groove 205 upper ends all connect a U-shaped groove 204, " one " groove that two U-shaped grooves 204 are T-shaped groove 205 upper ends is communicated with, in the present embodiment, two U-shaped grooves 204 needn't be symmetrical, certainly, symmetry also can, the opening 209 of T-shaped groove is positioned at the end of T-shaped groove 205; Under " one " grooves of T-shaped groove 205 upper ends, one first sulculus 207 and the second sulculus 206 are set, the first sulculus 207 and the second sulculus 206 are distributed in " Shu " groove both sides at T-shaped groove 205 middle parts, and the length of " one " groove is greater than the length sum of the first sulculus 207 and the second sulculus 206; In the present embodiment, the first sulculus 207 is for falling " U " and the slightly short type groove in one side, the second sulculus 206 is with " U " of the first sulculus 207 mirror images and slightly lacks the type groove on one side, the opening of the first sulculus 207 and the second sulculus 206 lays respectively at its lower end of falling " U " and slightly lacking the type groove on one side, and the opening 209 of the first sulculus 207, the second sulculus 206 and T-shaped groove is interconnected.In the present embodiment, the first sulculus 207 and the second sulculus 206 all are communicated with by one " one " type groove " Shu " groove with T-shaped groove 205 middle parts.
Please refer to Fig. 6, can find out that the utility model has better resonant bandwidth.
Please refer to Fig. 7, the antenna efficiency of present embodiment can satisfy GSM900, GSM1800, and the communicating requirement of W2100 is compared with the PIFA antenna, and the utility model tool has more balanced performance at low frequency, and is suitable at high band and PIFA.
Please refer to Fig. 8, Fig. 9 and Figure 10, from correction data, the utility model is suitable with traditional PI FA antenna at free space, has better equalization performance in the situation that the right-hand man holds.
More than disclosed only be several specific embodiments of the application, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's the protection range.
Claims (10)
1. one kind without headroom ground antenna system, comprise pcb board and antenna part, it is characterized in that, described antenna part is connected on the metallic region of described pcb board, described antenna part comprises ground area, feeder section and aerial radiation zone, described ground area is connected on the described pcb board by conductor, is added with signal source between described feeder section and the described pcb board, the respectively corresponding antenna fluting in described ground area, feeder section and aerial radiation zone.
2. as claimed in claim 1ly it is characterized in that without headroom ground antenna system described antenna part is the conductor that supports on the supporter of an entity, the lower surface of this supporter is close on the metallic region of described pcb board, and upper surface is curved surface.
3. as claimed in claim 1 without headroom ground antenna system, it is characterized in that, described antenna fluting comprises a T-shaped groove, described T-shaped groove correspondence described aerial radiation zone, " one " groove below of described T-shaped groove upper end arranges one first sulculus and the second sulculus, described the first sulculus and the second sulculus are distributed in " Shu " groove both sides at described T-shaped groove middle part, the open communication of described T-shaped groove is in the afterbody of described T-shaped groove, described the first sulculus correspondence described feeder section, described the second sulculus correspondence described ground area, and the opening of described the first sulculus and the second sulculus lays respectively at its end.
4. as claimed in claim 3ly it is characterized in that without headroom ground antenna system at least one end of described T-shaped groove upper end " one " groove connects a U-shaped groove, described U-shaped groove is communicated with described T-shaped groove.
5. as claimed in claim 3 without headroom ground antenna system, it is characterized in that the opening of described the first sulculus and the second sulculus and the open communication of described T-shaped groove.
6. as claimed in claim 3ly it is characterized in that without headroom ground antenna system, described the first sulculus or/and the second sulculus be inverted "L" shaped groove or fall " U " and lack the type groove on one side and slightly.
7. as claimed in claim 1ly it is characterized in that without headroom ground antenna system, in the described ground area in earth point and the described feeder section distance between the distributing point be 1/3rd pcb board width to three/two pcb board width.
8. as claimed in claim 1ly it is characterized in that without headroom ground antenna system the metallic region of described pcb board is level and smooth strip, perhaps for having the strip of otch, groove, projection.
9. as claimed in claim 1 without headroom ground antenna system, it is characterized in that the metallic region of described pcb board is distributed in the Zone Full of pcb board.
10. as claimed in claim 1ly it is characterized in that without headroom ground antenna system, described antenna part be positioned at described metallic region directly over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429008 CN202871964U (en) | 2012-08-28 | 2012-08-28 | Clear ground free antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429008 CN202871964U (en) | 2012-08-28 | 2012-08-28 | Clear ground free antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871964U true CN202871964U (en) | 2013-04-10 |
Family
ID=48038655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220429008 Expired - Fee Related CN202871964U (en) | 2012-08-28 | 2012-08-28 | Clear ground free antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322275A (en) * | 2015-12-03 | 2016-02-10 | 深圳市信维通信股份有限公司 | Cavity backed slot antenna structure and electronic device |
| EP3149804A4 (en) * | 2014-05-26 | 2018-01-03 | BYD Company Limited | Electronic device and antenna of the same |
-
2012
- 2012-08-28 CN CN 201220429008 patent/CN202871964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3149804A4 (en) * | 2014-05-26 | 2018-01-03 | BYD Company Limited | Electronic device and antenna of the same |
| CN105322275A (en) * | 2015-12-03 | 2016-02-10 | 深圳市信维通信股份有限公司 | Cavity backed slot antenna structure and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20160828 |