CN2724222Y - Circuit board multiple frequency broad band mobile phone antenna - Google Patents
Circuit board multiple frequency broad band mobile phone antenna Download PDFInfo
- Publication number
- CN2724222Y CN2724222Y CN 200420084781 CN200420084781U CN2724222Y CN 2724222 Y CN2724222 Y CN 2724222Y CN 200420084781 CN200420084781 CN 200420084781 CN 200420084781 U CN200420084781 U CN 200420084781U CN 2724222 Y CN2724222 Y CN 2724222Y
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- China
- Prior art keywords
- circuit board
- mobile phone
- face
- antenna
- low frequency
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- Expired - Fee Related
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Abstract
The utility model provides a circuit board multiple frequency broad band mobile phone antenna, comprising a shell, radiating elements. The radiating element is a circuit board, and the A face of the circuit board is provided with equivalent length formed on a copper sheet. The circuit board is electrically connected with a mobile phone, and current feeding is between the circuit board and the mobile phone. The A face of the circuit board is antenna units of low frequency terminal, and generates resonance when the antenna units of low frequency terminal is 1/4 wave length of the low frequency band electromagnetic wave signal. The B face of the circuit board is provided with equivalent length formed on a copper sheet, and is voltage feed by coupled mode between the B face of the circuit board and the mobile phone. The B face is antenna units of high frequency terminal, and generates resonance when the antenna units of high frequency low frequency terminal is 1/2 wave length of the high frequency band electromagnetic wave signal. The utility model has the advantages of small volume, saving resource, good consistency, stable performance, lightweight, easy assembly, and low cost.
Description
Technical field
The utility model relates to a kind of multifrequency broad-band antenna, particularly a kind of multifrequency broadband antenna for mobile phone
Background technology
Existing antenna for mobile phone adopts the limited floor list to prop up dual-band antenna mostly, and this antenna comprises that shell, the tubular metal width of cloth penetrate the unit, and the width of cloth is penetrated the unit and comprised wire spiral and metallic support.Shell is enclosed within the width of cloth and penetrates on the unit, and the width of cloth is penetrated the unit and is electrically connected with the floor, and shell also has rosette, decoction cap etc.Above-mentioned antenna mostly is a metalwork, therefore occurs machining accuracy easily, the copper material resource consumption, and large-area electroplating produces environmental issue.Cost is also than higher, the electrical property instability, and working band is narrow, is subjected to the human influence big, has problems such as constant weight.
Summary of the invention
The purpose of this utility model provides a kind of circuit board multifrequency broadband antenna for mobile phone, little, the lightness of this antenna volume, and resource is saved in stable performance, produces in batches easily, and cost is low.
For achieving the above object the utility model by the following technical solutions: sort circuit plate multifrequency broadband antenna for mobile phone, it comprises shell, the width of cloth is penetrated the unit, it is a circuit board that the described width of cloth is penetrated the unit, on the circuit board A face equivalent length that forms is arranged on copper sheet, it is electrically connected with mobile phone, and between the mobile phone current feed, circuit board A face is the low frequency end antenna element, it produces resonance when 1/4 wavelength of low-frequency band electromagnetic wave signal, on the circuit board B face equivalent length that forms is arranged on copper sheet, make voltage feed with coupled modes between it and the mobile phone, the B face of circuit board is the front end antenna element, and it produces resonance when 1/2 wavelength of high frequency band electromagnetic wave signal.
Description of drawings
Fig. 1: the antenna structure view that the utility model provides
Fig. 2: the A face is arranged schematic diagram among Fig. 1
Fig. 3: the B face is arranged schematic diagram among Fig. 1
Fig. 4: the equivalent circuit diagram of the utility model antenna
Fig. 5: the standing-wave ratio performance of the utility model antenna under different frequency
Fig. 6: the standing-wave ratio performance of existing coil antenna under different frequency
Embodiment
Among Fig. 1, it is circuit board that the width of cloth of antenna is penetrated the unit, and the equivalent length 1 that forms on copper sheet is arranged on the circuit board A face, and it is electrically connected with mobile phone, is current feed.The equivalent length 2 that forms on copper sheet is arranged on the circuit board B face; it directly is not electrically connected with mobile phone; but adopt the form that is coupled; make voltage feed (its coupled relation is asked for an interview the equivalent electric circuit of Fig. 4); among Fig. 1; 3 is signal feed-in point, and 6 is outer containment vessel, and it is stuck in the groove 4 on the support 5.Circuit board A face is that the low frequency end antenna element is when centre frequency 900Mhz, it produces resonance when 1/4 wavelength of electromagnetic wave signal, with the corresponding B face of A face be the front end antenna element when centre frequency is 1800MHz, it produces resonance when 1/2 wavelength of high frequency band electromagnetic wave signal.
Among Fig. 2,3 is signal feed-in point, and among Fig. 3, the equivalent length 2 that forms on copper sheet is not connected with signal feed-in point, leaves a distance (forming coupling capacitance C).
Among Fig. 4, the A face is the low frequency end antenna element, it directly passes through current feed, the voltage feed that the front end antenna element obtains by coupling coefficient M, the power of voltage feed depends on coupling coefficient M, to the influential concrete parameter of the M area size that is printed circuit board (PCB), and the dielectric constant of material and coupling capacitance.
Among Fig. 5, Fig. 6, its abscissa is represented frequency, and ordinate is represented standing-wave ratio.
Among Fig. 5,1 point: frequency is 880.00MHz, standing-wave ratio 1.809; 2 points: frequency is 960.00MHz, standing-wave ratio 1.941; 3 points: frequency is 1710.00MHz, standing-wave ratio 2.177; 4 points: frequency is 1890.00MHz, standing-wave ratio 1.702.
Among Fig. 6,1 point: frequency is 880.00MHz, standing-wave ratio 2.218; 2 points: frequency is 960.00MHz, standing-wave ratio 2.850; 3 points: frequency is 1710.00MHz, standing-wave ratio 2.086:4 point: frequency is 1890.00MHz, standing-wave ratio 1.644.
Because adopt structure of the present utility model, from Fig. 5, Fig. 6 as can be seen, the utility model promptly all has reasonable standing-wave ratio characteristic from 880-2000MHz under different frequencies, directivity and average gain are all than higher.
The utility model has the advantages that: this antenna volume miniaturization, save resource, high conformity, stable performance, in light weight, assembling easily, cost is low.
Claims (2)
1, a kind of circuit board multifrequency broadband antenna for mobile phone, it comprises shell, the width of cloth is penetrated the unit, it is characterized in that: it is a circuit board that the described width of cloth is penetrated the unit, on the circuit board A face equivalent length that forms is arranged on copper sheet, it is electrically connected with mobile phone, and between the mobile phone current feed, circuit board A face is the low frequency end antenna element, it produces resonance when 1/4 wavelength of low-frequency band electromagnetic wave signal, on the circuit board B face equivalent length that forms is arranged on copper sheet, make voltage feed with coupled modes between it and the mobile phone, the B face of circuit board is the front end antenna element, and it produces resonance when 1/2 wavelength of high frequency band electromagnetic wave signal.
2, circuit board multifrequency according to claim 1 broadband antenna for mobile phone, it is characterized in that described low frequency end antenna element resonates when centre frequency is 1/4 wavelength of 900MHz, described front end antenna element resonates when centre frequency is 1/2 wavelength of 1800MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084781 CN2724222Y (en) | 2004-08-09 | 2004-08-09 | Circuit board multiple frequency broad band mobile phone antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084781 CN2724222Y (en) | 2004-08-09 | 2004-08-09 | Circuit board multiple frequency broad band mobile phone antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2724222Y true CN2724222Y (en) | 2005-09-07 |
Family
ID=35037842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420084781 Expired - Fee Related CN2724222Y (en) | 2004-08-09 | 2004-08-09 | Circuit board multiple frequency broad band mobile phone antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2724222Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772860B (en) * | 2007-06-22 | 2013-09-04 | 诺基亚公司 | An apparatus, method and computer program for wireless communication |
| CN101079651B (en) * | 2007-06-29 | 2014-11-05 | 中兴通讯股份有限公司 | An antenna set on the mobile mainboard and mainboard including this antenna |
-
2004
- 2004-08-09 CN CN 200420084781 patent/CN2724222Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772860B (en) * | 2007-06-22 | 2013-09-04 | 诺基亚公司 | An apparatus, method and computer program for wireless communication |
| CN101079651B (en) * | 2007-06-29 | 2014-11-05 | 中兴通讯股份有限公司 | An antenna set on the mobile mainboard and mainboard including this antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |