CN2896550Y - Panel antenna with shont-circuit rod - Google Patents
Panel antenna with shont-circuit rod Download PDFInfo
- Publication number
- CN2896550Y CN2896550Y CNU2006200000290U CN200620000029U CN2896550Y CN 2896550 Y CN2896550 Y CN 2896550Y CN U2006200000290 U CNU2006200000290 U CN U2006200000290U CN 200620000029 U CN200620000029 U CN 200620000029U CN 2896550 Y CN2896550 Y CN 2896550Y
- Authority
- CN
- China
- Prior art keywords
- short bar
- antenna
- plate aerial
- short
- utility
- 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 - Lifetime
Links
Images
Landscapes
- Waveguide Aerials (AREA)
Abstract
A plate antenna with short-trace bar is applied to the multi-band hand-held electronic device, which includes two major resonant radiating elements bending to each other, and a short trace. Wherein, the short trace is connected between the feed-point and the ground point, thereby enabling the antenna with broad-bandwidth effect under multi-frequencies by the loop surface current caused by the short trace.
Description
Technical field
The utility model relates to a kind of plate aerial, refer to especially a kind of at antenna the feed side and earth terminal between be provided with a short bar, make antenna can under multi-frequency, obtain the plate aerial with short bar of wideband effect.
Background technology
Because the progress of wireless communication technique, multiband action hand-hold type (multi-band mobile handset) electronic installation is quite popular, for example mobile phone, PDA and GSM etc.
Be fit to the narrow and small multiband action portable electric device use antenna of this type of volume for reaching, and have the plate type antenna of a kind of PIFA (planar inverted-F antenna) to design, it has been offered several groovings on plate aerial body of feed side and earth terminal and has formed the shape of falling F having, constitute two radiant elements (radiatingelement) and form different current circuits, and reach the wide frequency antenna that can receive two kinds of frequency bands.
But the plate aerial shape that this kind is general is to design according to mobile phone inner housing form basically.In practical application, mobile phone for example, because consolidation size (finite size) requirement, its inner shell lacks height, will reduce the bandwidth (bandwidth) of antenna.
Novel content
The utility model purpose is, a kind of plate aerial with short bar is provided, and is to solve the problem of known technology, makes antenna can obtain the wideband effect under multi-frequency.
The utility model structure: a kind of plate aerial with short bar, it is characterized in that, comprise that two crooked mutually main resoance radiation elements and are used to cause the short bar of loop surface current, this short bar is connected between one of an antenna feed side and the earth terminal.
Wherein, plate aerial has the radiant element size of resonance frequency quarter-wave length.
Wherein, short bar is positioned in order to produce the position of GSM frequency band.
The utility model beneficial effect: according to said structure, the utility model makes antenna can obtain the wideband effect under multi-frequency; In addition, the plate aerial with short bar provided by the utility model under the situation that changes the short bar position, can increase bandwidth (bandwidth) and can be used for GSM frequency band (band); Position (location) and rod wide (trace-width) optimization by with short bar can obtain best impedance matching (impedance matching).
Below, architectural feature of the present utility model will be described in detail according to the embodiment shown in the drawing and use effect.
Description of drawings
Fig. 1: stereo appearance figure of the present utility model,
Fig. 2: the plane graph that antenna launches among Fig. 1,
Fig. 3: do not add the antenna plane radiation pattern figure of the utility model short bar,
Fig. 4: represent planar radiation field boundary type figure of the present utility model,
Fig. 5: the another kind of illustration of implementing of the present utility model.
Embodiment
See also Fig. 1 and Fig. 2, plate aerial 10 provided by the utility model, its structure comprises two crooked mutually main resoance radiation element 11 and short bars 12, this short bar is connected between antenna feed side 13 and the earth terminal 14, and it forms with copper base etching (etched) and the below has plastic cement tray (plasticholder).
Plate aerial 10 has the radiant element size of resonance frequency quarter-wave (quarter-wavelength) length, and this resonance frequency (resonant frequencies) can be adjusted by changing radiant element 11 sizes based on this.
In practical application, because the consolidation dimensional requirement, the inner shell that plate aerial is installed lacks height, will reduce the bandwidth of antenna.In order to compensate this environmental problem, the utility model mainly utilizes a short bar 12 to be connected between the feed side 13 and earth terminal 14 of antenna, to distinguish resonator.Because short bar 12 will cause the loop surface current of antenna, make antenna can obtain the wideband effect under multi-frequency.
In Fig. 1, bandwidth (bandwidth) is according to the size of radiant element 11 and short bar 12 positions and set.If change short bar 12 positions, can increase bandwidth and be used for the GSM frequency band.Position and excellent wide optimization as with short bar can obtain best impedance matching (impedance matching).
Shown that in Fig. 3 plate aerial does not add the test result of short bar 12 of the present utility model, wherein:
| 1：Mkr(MHz) | 2：Mkr(MHz) dB |
| 1：880.0000 4.630 2：960.0000 3.322 3：1710.0000 2.316 4：1880.0000 2.875 5>1990.0000 5.198 |
Fig. 4 then is the test result of the utility model antenna, wherein:
| 1：Mkr(MHz) | 2：Mkr(MHz) dB |
| 1：880.0000 1.290 2：960.0000 2.619 3：1710.0000 1.706 4：1880.0000 2.071 5>1990.0000 2.994 |
Aerial voltage standing-wave ratio of the present utility model (VSWR) is 1.29 at 880MHz shown in Fig. 4,960MHz is 2.619,1710MHz is 1.706, and 1880MHz is 2.071, and 1990MHz is 2.994, its standing-wave ratio all approaches 2, far beyond being 4.630,3.322,2.316 under the antenna same frequency that does not add short board, 2.875 5.198 (referring to Fig. 3) are desirable wide frequency antenna.
Plate aerial with short bar provided by the utility model, radiant element shape is not wherein exceeded with that shown in Figure 1, Figure 5 shows that another embodiment of the utility model.It places a side of radiant element according to the concrete enforcement space of device with short bar 12 and feed side 13 and earth terminal 14, and its effect is identical with previous embodiment.
Claims (3)
1. the plate aerial with short bar is characterized in that, comprises that two crooked mutually main resoance radiation elements and are used to cause the short bar of loop surface current, and this short bar is connected between one of an antenna feed side and the earth terminal.
2. according to the described plate aerial with short bar of claim 1, it is characterized in that: plate aerial has the radiant element size of resonance frequency quarter-wave length.
3. according to the described plate aerial with short bar of claim 1, it is characterized in that: short bar is positioned in order to produce the position of GSM frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200000290U CN2896550Y (en) | 2006-01-04 | 2006-01-04 | Panel antenna with shont-circuit rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200000290U CN2896550Y (en) | 2006-01-04 | 2006-01-04 | Panel antenna with shont-circuit rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896550Y true CN2896550Y (en) | 2007-05-02 |
Family
ID=38066123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200000290U Expired - Lifetime CN2896550Y (en) | 2006-01-04 | 2006-01-04 | Panel antenna with shont-circuit rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896550Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901966B (en) * | 2009-05-25 | 2013-07-10 | 财团法人工业技术研究院 | Antenna structure with characteristic of switching between different radiation patterns and preparation method thereof |
| WO2015039435A1 (en) * | 2013-09-22 | 2015-03-26 | 中兴通讯股份有限公司 | Multi-frequency antenna and terminal |
-
2006
- 2006-01-04 CN CNU2006200000290U patent/CN2896550Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901966B (en) * | 2009-05-25 | 2013-07-10 | 财团法人工业技术研究院 | Antenna structure with characteristic of switching between different radiation patterns and preparation method thereof |
| WO2015039435A1 (en) * | 2013-09-22 | 2015-03-26 | 中兴通讯股份有限公司 | Multi-frequency antenna and terminal |
| US10116040B2 (en) | 2013-09-22 | 2018-10-30 | Zte Corporation | Multi-frequency antenna and terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101043101A (en) | Single feeder built-in multi-frequency band antenna for mobile communication terminal | |
| US20070018892A1 (en) | Planar inverted F antenna and method of making the same | |
| CN1925221B (en) | Monopole antenna | |
| CA2592522A1 (en) | Internal multi-band antenna with planar strip elements | |
| CA2529796C (en) | Internal antenna with slots | |
| CN101501933A (en) | Mechanically tunable antenna for communication devices | |
| CN103337697B (en) | Seven-band planar terminal antenna | |
| CN200979907Y (en) | A novel built-in antenna system for a mobile phone | |
| GB2427311A (en) | Antenna system including a compact ground component with a resonant element | |
| CN101505000A (en) | Multi-frequency band antenna and wireless communication terminal using the same | |
| CN2896550Y (en) | Panel antenna with shont-circuit rod | |
| CN203367465U (en) | Novel ultra-wideband LTE antenna having metal frame | |
| CN104347925B (en) | A kind of antenna assembly of terminal device | |
| Rhyu et al. | Multi-band hybrid antenna for ultra-thin mobile phone applications | |
| CN2911984Y (en) | Double-frequency PIFA antenna adopting loop type oscillator | |
| US8354964B2 (en) | Antenna system having compact PIFA resonator with open sections | |
| US9099779B2 (en) | Antenna assembly and wireless communication device employing same | |
| Li et al. | Extremely compact dual-band PIFAs for MIMO application | |
| EP1956679A2 (en) | Miniaturized multi-band antenna | |
| CN114094329A (en) | Symmetrical top Peano fractal loaded microstrip patch antenna | |
| CN2502417Y (en) | Double-frequency or multi-frequency plane reverse F shape aerial | |
| US20130342420A1 (en) | Antenna assembly with multiband function | |
| CN111478039A (en) | Miniaturized dual-band PIFA antenna and compact combined antenna | |
| Bhatti et al. | Design of a compact internal antenna for multi-band personal communication handsets | |
| CN2729928Y (en) | Two-frequency antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070502 |
|
| EXPY | Termination of patent right or utility model |