CN202259670U - Terminal built-in antenna - Google Patents
Terminal built-in antenna Download PDFInfo
- Publication number
- CN202259670U CN202259670U CN 201120354661 CN201120354661U CN202259670U CN 202259670 U CN202259670 U CN 202259670U CN 201120354661 CN201120354661 CN 201120354661 CN 201120354661 U CN201120354661 U CN 201120354661U CN 202259670 U CN202259670 U CN 202259670U
- Authority
- CN
- China
- Prior art keywords
- antenna
- pcb
- ground wire
- circuit board
- pcb circuit
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a terminal built-in antenna. The antenna comprises a PCB and a radiator arranged on the PCB, wherein the radiator is provided with a signal feeding pin connected with a signal feeding point on the PCB; a curved out-of-shape ground wire is also arranged on the PCB and connected with the signal feeding point; and the shape and the structure of the ground wire vary with different product requirements. In the built-in antenna provided by the utility model, a grounding feeding pin of a common PIFA (Planar Inverted-F Antenna) is removed and replaced by the ground wire on the PCB, which is curved and out of shape to some extent and connected to the signal feeding point, so that the resonance and performance of a normal PIFA can be obtained; and as the grounding feeding pin is omitted, the risk of loose contact of the antenna can be reduced, or an ejector pin is omitted to lower the cost.
Description
Technical field
The utility model relates to a kind of mobile phone terminal built-in aerial, and especially a kind of PIFA built-in aerial of stent-type belongs to the mobile communication equipment technical field.
Background technology
Along with the development of mobile communication technology, the design of mobile communication equipment has been proposed increasingly high requirement, the miniaturization of communication terminal and multifunction become a trend of present development.Antenna for mobile phone has very important influence for communication quality; At present antenna for mobile phone mainly is divided into built-in and two kinds of external antennas; Because that built-in aerial has is not fragile, to human body radiation little etc. advantage, at present, mainly use built-in aerial to carry out Antenna Design.
The terminal built-in antenna of main flow all is monopole (monopole) or PIFA (pico farad) antenna at present; Monopole is applied to the environment that the antenna below does not have PCB ground; PIFA then is applied to the environment that there is PCB ground the antenna below; Monopole has only a feed pin, and the PIFA antenna then also has a ground connection feedback pin.
The PIFA antenna is to make a kind of built-in aerial with the most use now, and it is developed by inverted F shaped antenna, has little, the height that gains of volume, the characteristics of the relative broad of bandwidth.Existing P IFA antenna all has two feed pin, owing to increased a ground connection feedback pin, has increased the risk of antenna loose contact, and has increased the expense of a thimble, has increased cost.
The utility model content
The utility model promptly is to have the characteristics of two feed pin to present PIFA antenna, and existing P IFA antenna is designed change, is utilized in the improvement of carrying out on the PCB; The ground connection feedback pin of PIFA antenna is removed; What replace it is the ground wire that on pcb board, has certain crooked cabling, and this ground wire is connected on the signal feed point, and its advantage is in some environment, more to save the space; Also more save cost, reliability of structure is better.
Specifically; The described a kind of terminal built-in antenna of the utility model; Comprise the PCB circuit board and be erected at the radiant body on the PCB circuit board; It is characterized in that: described radiant body has signal feedback pin and is connected with signal feed point on the PCB circuit board, on the PCB circuit board, also is provided with bending ground wire out of shape, and this ground wire is connected on the signal feed point.
Described ground wire is according to the Different products requirement, and its structure has difference.
In the utility model, the PCB circuit version of mobile phone is exactly the reference ground of antenna for mobile phone, lets antenna away from other circuit of mobile phone, is the key that improves the antenna for mobile phone emission effciency.Radiant body area 550～600mm
2, with the distance of PCB circuit board be 6～7mm.The PIFA antenna is the design environment structure as requested, and electrical property is quite superior, comprises the SAR index, has been applicable to the certain thickness mobile phone products, folding, slip lid, spiral cover, plate rolls.
In the antenna view field of PCB circuit board, complete floor file is arranged; Do not arrange components and parts simultaneously at antenna side; Particularly motor, SPEAKER, RECEIVER etc. are than the element and the low frequency driving element of big metal structure, and they have very big negative effect to the electrical performance of antenna.
The described terminal built-in antenna of the utility model has following outstanding feature:
1. the size of antenna is dwindled to some extent, so this technology can reduce the real area of antenna, and its performance has no reduction;
2. for the ground wire of this bending cabling, the meeting basis is the difference of product not, and structure also can be different;
3. this antenna can reduce by a ground connection feed, can reduce the risk of antenna loose contact, perhaps reduces the expense of a thimble, has reduced cost.
Description of drawings
Fig. 1 is the structural representation of PIFA antenna in the background technology;
Fig. 2 is the structural representation of terminal built-in antenna among the utility model embodiment;
Wherein, 1 is that to present pin, 4 for ground connection feedback pin, 32 for signal for radiant body, 31 be ground wire to PCB circuit board, 2.
Embodiment
Below in conjunction with accompanying drawing and background technology the described terminal built-in antenna of the utility model is described; Purpose is better to understand the content of the utility model for the public, rather than to the restriction of said technology contents, in fact; With of the improvement of the identical or approximate principle of the utility model to said terminal built-in antenna; Comprising the shape of ground wire, the variation of structure, is purpose to reach identical function, then all within the utility model technical scheme required for protection.
Like Fig. 1, common PIFA antenna has PCB circuit board 1 and is erected at the radiant body 2 on the PCB circuit board 1, and wherein radiant body 2 has two feed pin, presents pin 31 for ground connection for one, connects PCB ground; Another is a signal feedback pin 32, connects signal, and resonance is in 900 and 1800 two-bands.
In the embodiment of the utility model; Like Fig. 2; Comprise PCB circuit board 1 and be erected at the radiant body 2 on the PCB circuit board 1 that wherein, described radiant body 2 has a signal feedback pin 32 and is connected with signal feed point on the PCB circuit board 1; On PCB circuit board 1, also be provided with crooked ground wire 4 out of shape, be connected on the signal feed point.
In the described built-in aerial of the utility model, the ground connection of PIFA antenna in the background technology is presented pin remove, what replace it is the ground wire that certain crooked cabling is arranged on the pcb board, is connected on the signal feed point, can obtain the resonance and the performance of normal PIFA antenna.
Claims (3)
1. terminal built-in antenna; Comprise the PCB circuit board and be erected at the radiant body on the PCB circuit board; It is characterized in that: described radiant body has signal feedback pin and is connected with signal feed point on the PCB circuit board; On the PCB circuit board, also be provided with crooked ground wire out of shape, this ground wire is connected on the signal feed point.
2. terminal built-in antenna according to claim 1 is characterized in that: said radiant body area is 550～600mm
2
3. terminal built-in antenna according to claim 1 is characterized in that: the distance of said radiant body and PCB circuit board is 6～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120354661 CN202259670U (en) | 2011-09-21 | 2011-09-21 | Terminal built-in antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120354661 CN202259670U (en) | 2011-09-21 | 2011-09-21 | Terminal built-in antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259670U true CN202259670U (en) | 2012-05-30 |
Family
ID=46120863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120354661 Expired - Fee Related CN202259670U (en) | 2011-09-21 | 2011-09-21 | Terminal built-in antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066070A (en) * | 2018-08-07 | 2018-12-21 | 福州福大信捷天线技术有限公司 | A kind of RFID reader antenna and its application method |
-
2011
- 2011-09-21 CN CN 201120354661 patent/CN202259670U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066070A (en) * | 2018-08-07 | 2018-12-21 | 福州福大信捷天线技术有限公司 | A kind of RFID reader antenna and its application method |
| CN109066070B (en) * | 2018-08-07 | 2024-02-06 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101106211B (en) | Dual loop multi-frequency antenna | |
| EP3343695B1 (en) | Antenna device for mobile terminal and mobile terminal | |
| US20150244063A1 (en) | Apparatus for wireless communication | |
| CN102368575A (en) | Built-in secondary radiating antenna | |
| US10199730B2 (en) | Coupled antenna system for multiband operation | |
| CN106025509A (en) | Shell, antenna device and mobile terminal | |
| US20160198027A1 (en) | Apparatus for Wireless Communication | |
| CN101719586B (en) | Communication device, horn and antenna assembly thereof | |
| US20180342808A1 (en) | Antenna structure | |
| CN101582532A (en) | Antenna of coplanarity coupling type feed-in multi-frequency action communication device | |
| CN201732860U (en) | Long-term evolution antenna structure | |
| CN203071225U (en) | Loop antenna for mobile terminal | |
| CN203367465U (en) | Novel ultra-wideband LTE antenna having metal frame | |
| CN103682563B (en) | Hand-hold electronic device | |
| CN202259670U (en) | Terminal built-in antenna | |
| CN202474230U (en) | CMMB built-in antenna and mobile terminal | |
| WO2014161331A1 (en) | Antenna apparatus for terminal device | |
| CN208589540U (en) | A kind of LTE band antenna structure for small device | |
| US20100245203A1 (en) | Multiband antenna | |
| CN202905935U (en) | Small high-performance chip antenna | |
| CN201038319Y (en) | Multi-frequency antenna | |
| CN101359763A (en) | Double-frequency antenna | |
| CN103618133B (en) | A kind of LTE antenna with parasitic element and manufacture method thereof | |
| TWI617087B (en) | Antenna structure and wireless communication device using the same | |
| CN201985245U (en) | Cell phone antenna |
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: 20120530 Termination date: 20200921 |