CN102044743B - Single-frequency antenna - Google Patents
Single-frequency antenna Download PDFInfo
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- CN102044743B CN102044743B CN 200910178181 CN200910178181A CN102044743B CN 102044743 B CN102044743 B CN 102044743B CN 200910178181 CN200910178181 CN 200910178181 CN 200910178181 A CN200910178181 A CN 200910178181A CN 102044743 B CN102044743 B CN 102044743B
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- radiant body
- band antenna
- distributing point
- layed
- substrate
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Abstract
The invention provides a single-frequency antenna, comprising a base plate, a first radiator, a conductive material, an impedance matching circuit, a feeding point, a second radiator and a conductive connection unit. Therefore, the antenna structure can be contracted to be arranged in a small wireless transmission device, and the signal transmission efficiency is favorable.
Description
Technical field
The present invention is relevant for a kind of single-band antenna, refers to especially a kind of antenna structure be dwindled to be arranged in the small-sized radio transmitting device, and the good single-band antenna of signal transmission efficiency.
Background technology
Because electronic installation moves towards microminiaturized design now, causes the casing of electronic apparatus inner space narrow and small, can allow that the space of antenna storing is also more and more narrower and small, and then the signal of potato masher antenna receives.Cause its operation frequency range to be restricted.
Therefore, how developing a kind of single-band antenna, antenna structure can be dwindled be arranged in the small-sized radio transmitting device, and signal transmission efficiency is good, will be that the present invention desires actively to inquire into part.
Summary of the invention
Main purpose of the present invention is for proposing a kind of single-band antenna, and its key property is for to dwindle antenna structure to be arranged in the small-sized radio transmitting device, and signal transmission efficiency is good.
In order to achieve the above object, the present invention is a kind of single-band antenna, includes: a substrate comprises one first and one second; One first radiant body comprises one first end and one second end, and it is layed in described first, and it is deflection structure that wherein said first radiant body is positioned between described first end and described second end; One conductive materials, it is layed in described first; One impedance matching circuit, it is layed in described first and make described first radiant body and described conductive materials is electric joins; One distributing point, it is layed in described first and be located at described first radiant body; One second radiant body, it is layed in described second; And one the conduction linkage unit, it is arranged in described first end and described electric joining of second radiant body that described substrate makes described first radiant body; The total length that wherein said first radiant body, described second radiant body engage with described conduction linkage unit determines the frequency of operation of described single-band antenna.
The preferably, described first of substrate of the present invention is arranged at the symmetrical plane of two of described substrate respectively with described second.
The preferably, described first of substrate of the present invention is two symmetrical non-coplanar flat with described second.
The preferably, distributing point of the present invention is in abutting connection with described second end of described first radiant body.
The preferably, the contiguous described distributing point in impedance matching circuit of the present invention and the described first radiant body junction,
The preferably, conductive materials of the present invention is a ground plane.
Preferably, the present invention more comprise a coaxial cable and described distributing point is electric joins, with the transmission signal.
Preferably, the present invention more comprise a microstrip line and described distributing point is electric joins, with the transmission signal.
Preferably, the present invention more comprise altogether ground roll and lead with described distributing point is electric and join, with the transmission signal.
The preferably, substrate of the present invention, described first radiant body, described conductive materials, described impedance matching circuit and described distributing point are integrally formed.
The preferably, substrate of the present invention is a printed circuit board (PCB).
So, compared with prior art, the present invention can dwindle antenna structure to be arranged in the small-sized radio transmitting device, and signal transmission efficiency is good.
Description of drawings
Fig. 1 is the front view of specific embodiments of the invention;
Fig. 2 is the rear view of specific embodiments of the invention;
Fig. 3 is the single-band antenna body stereogram of specific embodiments of the invention;
Fig. 4 is that preferred embodiment 2GHz to 3GHz according to the present invention is to the measurement figure of voltage standing wave ratio;
Fig. 5 A is that X-Y plane according to preferred embodiment of the present invention is in the measured antenna patterns illustrated figure of 2.4GHz frequency;
Fig. 5 B is that X-Y plane according to preferred embodiment of the present invention is in the measured antenna patterns illustrated figure of 2.45GHz frequency;
Fig. 5 C is that X-Y plane according to preferred embodiment of the present invention is in the measured antenna patterns illustrated figure of 2.5GHz frequency;
Fig. 6 A is that Y-Z plane according to preferred embodiment of the present invention is in the measured antenna patterns illustrated figure of 2.4GHz frequency;
Fig. 6 B is that Y-Z plane according to preferred embodiment of the present invention is in the measured antenna patterns illustrated figure of 2.45GHz frequency;
Fig. 6 C is that Y-Z plane according to preferred embodiment of the present invention is in the measured antenna patterns illustrated figure of 2.5GHz frequency.
Description of reference numerals: 1-single-band antenna; The 2-substrate; 3-first radiant body; The 4-conductive materials; 5-impedance matching circuit; The 6-distributing point; 7-second radiant body; 8-conducts electricity linkage unit.
Embodiment
For fully understanding feature of the present invention and effect, by following specific embodiment, and cooperate appended graphicly, the present invention is described in detail, illustrate as afterwards:
Fig. 1, Fig. 2 and Fig. 3 are respectively front view, rear view and the single-band antenna body stereogram of specific embodiments of the invention, please also refer to Fig. 1, Fig. 2 and Fig. 3, the present invention is a kind of single-band antenna 1, include: a substrate 2 (for example, one printed circuit board (PCB)), comprise one first with one second, whether wherein said first be arranged at the symmetrical plane of two of described substrate 2 with described second face there is no particular restriction, the user can and need make suitable change according to product structure; One first radiant body 3, it is layed in described first, and wherein said first radiant body 3 is deflection structures, and in general, described first radiant body 3 comprises one first end and one second end, and described deflection structure is between described first end and described second end; One conductive materials 4, it is layed in described first, and wherein said conductive materials generally is a ground plane; One impedance matching circuit 5, it is layed in described first and make described first radiant body 3 and 4 electric joining of described conductive materials, with the usefulness as ground connection, and by adjusting described impedance matching circuit 5 and the described first radiant body 3 electric positions that join, or change described impedance matching circuit 5 and the conductive materials 4 electric positions that join, also or change line length or the live width of described impedance matching circuit 5, all can change antenna impedance, antenna bandwidth and standing-wave ratio; One distributing point 6, it is layed in described first and be located at described first radiant body 3, for aerial signal can be transmitted smoothly, preferable utilize a coaxial cable, a microstrip line or altogether ground roll lead and described 6 electric joining of distributing point, do not have overlapping between wherein said distributing point 6 and the described impedance matching circuit 5, and described impedance matching circuit 5 and the described distributing point 6 of the preferable vicinity in described first radiant body, 3 junctions are being set on the position; One second radiant body 7, it is layed in described second, and its length there is no particular restriction, and the user can adjust according to need voluntarily; And one the conduction linkage unit 8, it is arranged in described substrate 2 and makes described first radiant body 3 and described 7 electric joining of second radiant body, preferably, described conduction linkage unit 8 connects described first end of described first radiant body 3, and described distributing point 6 is in abutting connection with described second end of described first radiant body 3.In general, for making antenna obtain preferable transmitting-receiving usefulness and reducing manufacturing cost, preferably described substrate 2, described first radiant body 3, described conductive materials 4, described impedance matching circuit 5 and described distributing point 6 are integrally formed metal structures.
Fig. 4 is according to the measurement figure of aforementioned preferred embodiment 2GHz to 3GHz of the present invention to voltage standing wave ratio, please refer to Fig. 4, in the scope of the wave band 2.4GHz to 2.5GHz commonly used of wireless product now, can learn that by the reality measurement single-band antenna of the present invention is on its corresponding work bandwidth, really have good signal transmitting-receiving usefulness, and emphasis is single-band antenna of the present invention existing single-band antenna size is more exquisite.
Fig. 5 A to Fig. 5 C is respectively the antenna patterns illustrated figure measured according to the X-Y plane of aforesaid preferred embodiment, it has measured the frequency of 2.4GHz, 2.45Ghz to 2.5GHz respectively, shown by Fig. 5 A to Fig. 5 C, in aforesaid frequency range, single-band antenna of the present invention all has good signal transmitting-receiving usefulness really on each plane and direction.
Fig. 6 A to Fig. 6 C is respectively the antenna patterns illustrated figure measured according to the Y-Z plane of aforesaid preferred embodiment, it has measured the frequency of 2.4GHz, 2.45Ghz to 2.5GHz respectively, shown by Fig. 6 A to Fig. 6 C, in aforesaid frequency range, single-band antenna of the present invention all has good signal transmitting-receiving usefulness really on each plane and direction.
Can clearly be understood by the above, the invention provides a kind of single-band antenna, antenna structure can be dwindled be arranged in the small-sized radio transmitting device, and obtain good signal transmission usefulness.
Below patent application case of the present invention is described in detail, but the above only is the preferred embodiment of patent application case of the present invention, when not limiting the scope that patent application case of the present invention is implemented.Be that all equalizations of doing according to patent application case application range of the present invention change and modify etc., all should still belong in the patent covering scope of patent application case of the present invention.
Claims (13)
1. single-band antenna is characterized in that it includes:
One substrate comprises one first and one second;
One first radiant body, it is layed in described first, and wherein said first radiant body is deflection structure;
One conductive materials, it is layed in described first;
One impedance matching circuit, it is layed in described first and make described first radiant body and described conductive materials is electric joins;
One distributing point, it is layed in described first and be located at described first radiant body;
One second radiant body, it is layed in described second; And
One conduction linkage unit, it is arranged in described substrate and makes described first radiant body and described electric joining of second radiant body.
2. single-band antenna as claimed in claim 1 is characterized in that, described first is arranged at the symmetrical plane of two of described substrate respectively with described second.
3. single-band antenna as claimed in claim 1 is characterized in that, described first is two symmetrical non-coplanar flat with described second.
4. single-band antenna as claimed in claim 1 is characterized in that, more comprises a coaxial cable and described distributing point is electric joins, with the transmission signal.
5. single-band antenna as claimed in claim 1 is characterized in that, more comprises a microstrip line and described distributing point is electric joins, with the transmission signal.
6. single-band antenna as claimed in claim 1 is characterized in that, more comprises altogether ground roll and leads with described distributing point is electric and join, with the transmission signal.
7. single-band antenna as claimed in claim 1 is characterized in that, described substrate, described first radiant body, described conductive materials, described impedance matching circuit and described distributing point are integrally formed.
8. single-band antenna as claimed in claim 1 is characterized in that, described substrate is a printed circuit board (PCB).
9. single-band antenna as claimed in claim 1 is characterized in that, described first radiant body comprises one first end and one second end, and between described deflection structure described first end in seat and described second end.
10. single-band antenna as claimed in claim 9 is characterized in that, described conduction linkage unit connects described first end of described first radiant body.
11. single-band antenna as claimed in claim 9 is characterized in that, described distributing point is in abutting connection with described second end of described first radiant body.
12. single-band antenna as claimed in claim 1 is characterized in that, the contiguous described distributing point in described impedance matching circuit and the described first radiant body junction.
13. single-band antenna as claimed in claim 1 is characterized in that, described conductive materials is a ground plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910178181 CN102044743B (en) | 2009-10-15 | 2009-10-15 | Single-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910178181 CN102044743B (en) | 2009-10-15 | 2009-10-15 | Single-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102044743A CN102044743A (en) | 2011-05-04 |
| CN102044743B true CN102044743B (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910178181 Expired - Fee Related CN102044743B (en) | 2009-10-15 | 2009-10-15 | Single-frequency antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN102044743B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242962B (en) * | 2013-06-18 | 2017-06-27 | 联想(北京)有限公司 | A kind of method of reseptance and receiver of pending signal |
| CN107403992A (en) * | 2016-05-20 | 2017-11-28 | 中兴通讯股份有限公司 | A kind of antenna and terminal device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1694303A (en) * | 2004-05-04 | 2005-11-09 | 三星电机株式会社 | Multi-band multi-layered chip antenna using double coupling feeding |
| CN2840342Y (en) * | 2005-06-21 | 2006-11-22 | 达智科技股份有限公司 | Single-pole antenna |
-
2009
- 2009-10-15 CN CN 200910178181 patent/CN102044743B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1694303A (en) * | 2004-05-04 | 2005-11-09 | 三星电机株式会社 | Multi-band multi-layered chip antenna using double coupling feeding |
| CN2840342Y (en) * | 2005-06-21 | 2006-11-22 | 达智科技股份有限公司 | Single-pole antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102044743A (en) | 2011-05-04 |
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Granted publication date: 20130703 Termination date: 20161015 |