CN101093912A - Structure of plane antenna - Google Patents
Structure of plane antenna Download PDFInfo
- Publication number
- CN101093912A CN101093912A CNA2006100864748A CN200610086474A CN101093912A CN 101093912 A CN101093912 A CN 101093912A CN A2006100864748 A CNA2006100864748 A CN A2006100864748A CN 200610086474 A CN200610086474 A CN 200610086474A CN 101093912 A CN101093912 A CN 101093912A
- Authority
- CN
- China
- Prior art keywords
- sheet metal
- radiation sheet
- earthing conductor
- antenna structure
- plane antenna
- 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.)
- Granted
Links
Images
Landscapes
- Waveguide Aerials (AREA)
Abstract
The structure of plane antenna includes a ground conductor (GC), a first radiation sheet metal (RSM), a short-circuiting jumper (SCJ), and a second RSM. Being setup above GC, the first RSM possesses a feeding point. One end of SCJ is connected to the ground conductor, and the other end is connected to a lateral margin of the first RSM. Projection of first RSM on GC is located at one side of projection of SCJ on GC. Second RSM is setup above GC and first RSM. Projection of second RSM on GC is lay across two sides of projection of SCJ on GC. Moreover, projection of second RSM on GC is overlapped on projection of first RSM on GC partially. Using second RSM, the invention increases range of signal received and transmitted by the structure of plane antenna.
Description
Technical field
The invention relates to a kind of antenna structure, and particularly relevant for the plane antenna structure that is built in electronic installation in a kind of.
Background technology
Along with progressing greatly of communication science and technology, mechanics of communication also increases in the application of sci-tech product day by day, make relevant communication product become more diverse, and the consumer is more and more higher to the functional requirement of communication product in recent years, so many communication products with different designs and function constantly are suggested, has the recent especially popular trend of computer network product of wireless telecommunications.
With regard to communication product, the design that important key is antenna is gone up in its design, because the whether good quality that will influence communication of Antenna Design quality.For instance, antenna comprises non-built-in and built-in two kinds.Non-built-in antenna comprises unipole antenna (monopole antenna), dipole antenna (dipole antenna) and helical antenna (helix antenna) etc., and built-in antenna comprises planar inverted-F antenna (Planar Inverted F Antenna, PIFA) and microstrip antenna (microstrip antenna), wherein planar inverted-F antenna is widely used on the communication product especially.
Fig. 1 is the schematic perspective view of known a kind of planar inverted-F antenna, and Fig. 2 is the end view of the planar inverted-F antenna of Fig. 1.Please also refer to Fig. 1 and Fig. 2, known planar inverted-F antenna 100 comprises that an earthing conductor 110, a radiation sheet metal 120, a short-circuiting jumper 130 and present sheet metal 140.Radiation sheet metal 120 is positioned at the top of earthing conductor 110, and keeps a suitable distance and being parallel to each other between earthing conductor 110 and the radiation sheet metal 120, and radiation sheet metal 120 has a feed point (Feed Point) FP.In addition, an end of short-circuiting jumper 130 is connected with earthing conductor 110, and its other end then is connected with a lateral margin of radiation sheet metal 120.In addition, an end of presenting sheet metal 140 is connected to the feed point FP on the radiation sheet metal 120, and the other end then is electrically connected to a signal source SS.
From the above,, on the radiation sheet metal 120 of planar inverted-F antenna 100, can set up a groove 124, radiation sheet metal 120 is separated into one second radiant section 120b of one first peripheral radiant section 120a and central authorities in order to reach the function of dual-band antenna.The first radiant section 120a and the second radiant section 120b can be respectively as a first frequency radiant body and second frequency radiant bodies, to operate under two different operating frequencies respectively.
Fig. 3 is the radiation pattern schematic diagram of the planar inverted-F antenna of Fig. 1 when operating in 2.45GHz, and Fig. 4 is the radiation pattern schematic diagram of the planar inverted-F antenna of Fig. 1 when operating in 5.25GHz.By Fig. 3 and Fig. 4 as can be known, the beamwidth of known planar inverted-F antenna is narrower.That is to say that the scope of the signal reception/transmission of planar inverted-F antenna only is defined in the less specific region, top of radiation sheet metal.Therefore, the scope that how to increase the signal reception/transmission of planar inverted-F antenna is an important problem.
Summary of the invention
The object of the present invention is to provide a kind of plane antenna structure, in order to the scope of increase signal reception/transmission, and in order to the function of double frequency signal reception/transmission to be provided.
For achieving the above object, plane antenna structure provided by the invention, it comprises:
One earthing conductor;
One first radiation sheet metal is equipped on the top of this earthing conductor, and has a feed point;
One short-circuiting jumper, the one end is connected to this earthing conductor, and its other end is connected to a lateral margin of this first radiation sheet metal, and this first radiation sheet metal is positioned at a side of the projection of this short-circuiting jumper on this earthing conductor in the projection on this earthing conductor; And
One second radiation sheet metal, be equipped on the top of this earthing conductor and this first radiation sheet metal, and this second radiation sheet metal is in the both sides of the projection on this earthing conductor across the projection of this short-circuiting jumper on this earthing conductor, and this second radiation sheet metal is overlapped in this projection of first radiation sheet metal on this earthing conductor in the projection part on this earthing conductor.
Described plane antenna structure, wherein this first radiation sheet metal is parallel to this second radiation sheet metal.
Described plane antenna structure, wherein this earthing conductor is a grounded metal sheet.
Described plane antenna structure, wherein this earthing conductor is a ground plane of a circuit board.
Described plane antenna structure also comprises:
One presents sheet metal, and the one end is connected to this feed point, and its other end is electrically connected to a signal source.
Described plane antenna structure also comprises:
One feed lines, the one end is connected to this feed point, and its other end is electrically connected to a signal source.
Described plane antenna structure, wherein this first radiation sheet metal has one first groove, it is separated into one first radiant section and one second radiant section with this first radiation sheet metal, and this second radiation sheet metal has one second groove, it is separated into one the 3rd radiant section and one the 4th radiant section with this second radiation sheet metal, and this first radiant section and the 3rd radiant section constitute a first frequency radiant body, and this second radiant section and the 4th radiant section constitute a second frequency radiant body.
Described plane antenna structure, wherein this first groove centers on this feed point, and the two ends of this first groove end at this lateral margin that this first radiation sheet metal is connected with this short-circuiting jumper.
Described plane antenna structure, wherein the two ends of this second groove end at a lateral margin of contiguous this first radiation sheet metal of this second radiation sheet metal.
In detail, the present invention includes an earthing conductor, one first radiation sheet metal, a short-circuiting jumper and one second radiation sheet metal.First radiation sheet metal is the top that is equipped on earthing conductor, and has a feed point.One end of short-circuiting jumper is connected to earthing conductor, and its other end then is connected to a lateral margin of first radiation sheet metal, and first radiation sheet metal is positioned at a side of the projection of short-circuiting jumper on earthing conductor in the projection on the earthing conductor.Second radiation sheet metal is the top that is equipped on the earthing conductor and first radiation sheet metal, and second radiation sheet metal is in the both sides of the projection on the earthing conductor across the projection of short-circuiting jumper on earthing conductor, and second radiation sheet metal is overlapped in the projection of first radiation sheet metal on earthing conductor in the projection part on the earthing conductor.
In one embodiment of this invention, first radiation sheet metal is parallel to second radiation sheet metal.
In one embodiment of this invention, earthing conductor is a grounded metal sheet.
In one embodiment of this invention, earthing conductor is a ground plane of a circuit board.
In one embodiment of this invention, plane antenna structure also comprises and presents sheet metal.An end of presenting sheet metal is connected to feed point, and its other end then is electrically connected to a signal source.
In one embodiment of this invention, plane antenna structure also comprises a feed lines.One end of feed lines is connected to feed point, and the other end of feed lines then is electrically connected to a signal source.
In one embodiment of this invention, first radiation sheet metal has one first groove, first groove is separated into one first radiant section and one second radiant section with first radiation sheet metal, second radiation sheet metal then has one second groove, second groove is separated into one the 3rd radiant section and one the 4th radiant section with second radiation sheet metal, and first radiant section and the 3rd radiant section constitute a first frequency radiant body, and second radiant section and the 4th radiant section constitute a second frequency radiant body.
In one embodiment of this invention, the first above-mentioned groove is around feed point, and the two ends of first groove end at the lateral margin that first radiation sheet metal is connected with short-circuiting jumper.
In one embodiment of this invention, the two ends of the second above-mentioned groove end at a lateral margin of contiguous first radiation sheet metal of second radiation sheet metal.
In one embodiment of this invention, the distance distance of the distance of first radiation sheet metal and earthing conductor and first radiation sheet metal and second radiation sheet metal and that equal second radiation sheet metal and earthing conductor.
Based on above-mentioned, the present invention sets up above-mentioned second radiation sheet metal and is used as a passive antenna above the earthing conductor and first radiation sheet metal, to be increased the scope of the signal reception/transmission of plane antenna structure by second radiation sheet metal.
Description of drawings
Fig. 1 is the schematic perspective view of known a kind of planar inverted-F antenna.
Fig. 2 is the end view of the planar inverted-F antenna of Fig. 1.
Fig. 3 is the radiation pattern schematic diagram of the planar inverted-F antenna of Fig. 1 when operating in 2.45GHz.
Fig. 4 is the radiation pattern schematic diagram of the planar inverted-F antenna of Fig. 1 when operating in 5.25GHz.
Fig. 5 is the stereogram of a kind of plane antenna structure of one embodiment of the invention.
Fig. 6 is the end view of the plane antenna structure of Fig. 5.
Fig. 7 is the current path schematic diagram of first and second frequency radiant body of Fig. 5.
Fig. 8 is the radiation pattern schematic diagram of the plane antenna structure of Fig. 5 when operating in 2.45GHz.
Fig. 9 is the radiation pattern schematic diagram of the plane antenna structure of Fig. 5 when operating in 5.25GHz.
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, an embodiment cited below particularly, and conjunction with figs. are described in detail below.
Fig. 5 is the stereogram of a kind of plane antenna structure of one embodiment of the invention, and Fig. 6 is the end view of the plane antenna structure of Fig. 5.Please also refer to Fig. 5 and Fig. 6, the plane antenna structure 200 of present embodiment comprises an earthing conductor 210, one first radiation sheet metal 220, a short-circuiting jumper 230 and one second radiation sheet metal 240.Earthing conductor 210 for example is a grounded metal sheet or a ground plane of a circuit board.In addition, first radiation sheet metal 220 is the tops that are equipped on earthing conductor 210, and has a feed point FP on first radiation sheet metal 220.In addition, an end of short-circuiting jumper 230 is to be connected in earthing conductor 210, and its other end then is to be connected in first radiation sheet metal 220.
In the present embodiment, first radiation sheet metal 220 can be parallel to second radiation sheet metal 240, and the distance of first radiation sheet metal 220 and earthing conductor 210 and first radiation sheet metal 220 and second radiation sheet metal 240 equal the distance of second radiation sheet metal 240 and earthing conductor 210 apart from sum.
In the present embodiment, second radiation sheet metal 240 can be supported in the top of first radiation sheet metal 220 with it by a nonmetal supporter 202, and the material of wherein nonmetal supporter 202 can be insulation materials such as Poly Foam.
It should be noted that in the present embodiment first radiation sheet metal 220 is positioned at a side of the projection 230 ' of short-circuiting jumper 230 on earthing conductor 210 in the projection on the earthing conductor 210 220 '.Second radiation sheet metal 240 is in the both sides of the projection 240 ' on the earthing conductor 210 across the projection 230 ' of short-circuiting jumper 230 on earthing conductor 210.Second radiation sheet metal 240 is overlapped in first projection 220 ' of radiation sheet metal 220 on earthing conductor 210 in the 240 ' part of the projection on the earthing conductor 210.Therefore, can be between first radiation sheet metal 220 and second radiation sheet metal 240 by the mutual transmitting signals of radiated electromagnetic wave, make the scope of signal reception/transmission of plane antenna structure 200 increase.
In the present embodiment, in order to be electrically connected to a signal source SS, plane antenna structure 200 also comprises presents sheet metal 250, and the one end is connected to the feed point FP on first radiation sheet metal 220, and its other end then is electrically connected to above-mentioned signal source SS.Therefore, signal source SS can be fed to first radiation sheet metal 220 with signal by presenting sheet metal 250, to see through first radiation fin 220 signal is sent in electromagnetic mode.In addition, the above-mentioned sheet metal 250 of presenting can replace with a feed lines (not shown).Similarly, an end of feed lines is connected to feed point FP, and its other end then is to be electrically connected to signal source SS.When feed lines was a coaxial cable (coaxial cable), its end as the core conductor of signal transmission was connected to feed point FP, and its end as the peripheral conductors of signal shielding then is connected to earthing conductor 210.
Refer again to Fig. 5, the function of dual-band antenna can be provided for the plane antenna structure 200 that makes present embodiment, first radiation sheet metal 220 of present embodiment also can have one first groove 222, and it can be separated into first radiation sheet metal 220 one second radiant section 220b of one first peripheral radiant section 220a and central authorities.In the present embodiment, above-mentioned first groove 222 is around feed point FP, and the two ends of first groove 222 are to end at the lateral margin that first radiation sheet metal 220 is connected with short-circuiting jumper 230.In addition, second radiation sheet metal 240 also can have one second groove 242, and it can be separated into second radiation sheet metal 240 one the 4th radiant section 240b of one the 3rd peripheral radiant section 240a and central authorities.In the present embodiment, the two ends of above-mentioned second groove 242 then are lateral margins that ends at second radiation sheet metal, 240 contiguous first radiation sheet metals 220.
Fig. 7 is the current path schematic diagram of first and second frequency radiant body of Fig. 5.Please refer to Fig. 5 and Fig. 7, the peripheral first radiant section 220a and the 3rd radiant section 240a can constitute a first frequency radiant body 204, and the second radiant section 220b and the 4th radiant section 240b of central authorities can constitute a second frequency radiant body 206.Therefore, the first frequency radiant body 204 of plane antenna structure 200 and second frequency radiant body 206 will can be applicable to the signal reception/transmission of double frequency.Length that it should be noted that the current path of first frequency radiant body 204 determines its applied frequency range, and the length of the current path of second frequency radiant body 206 determines its applied frequency range.
In order on radiation pattern, to make comparisons with the planar inverted-F antenna 100 of known Fig. 1, the first frequency radiant body 204 of Fig. 5 of present embodiment is set in 2.45GHz and operates, and operates and the second frequency radiant body 206 of Fig. 5 of present embodiment is set in 5.25GHz.
Fig. 8 is the radiation pattern schematic diagram of the plane antenna structure of Fig. 5 when operating in 2.45GHz.Please refer to Fig. 3 and Fig. 8, Fig. 3 shows that the planar inverted-F antenna 100 of known Fig. 1 has comparatively narrow beamwidth when operating in 2.45GHz; On the contrary, Fig. 8 shows that the plane antenna structure 200 of Fig. 5 of present embodiment has comparatively roomy beamwidth when operating in 2.45GHz.
Fig. 9 is the radiation pattern schematic diagram of the plane antenna structure of Fig. 5 when operating in 5.25GHz.Please refer to Fig. 4 and Fig. 9, Fig. 4 shows that the planar inverted-F antenna 100 of known Fig. 1 has comparatively narrow beamwidth when operating in 5.25GHz; On the contrary, Fig. 9 shows that the plane antenna structure 200 of Fig. 5 of present embodiment has comparatively roomy beamwidth when operating in 5.25GHz.
In sum, the present invention sets up second radiation sheet metal and is used as a passive antenna above the earthing conductor and first radiation sheet metal, to be increased the scope of the signal reception/transmission of plane antenna structure by second radiation sheet metal.In addition, the present invention also can be separated into a plurality of parts with first radiation sheet metal and second radiation sheet metal and constitute first frequency radiant body and second frequency radiant body, to be applied to the signal reception/transmission of double frequency.
Though the present invention describes as above with an embodiment; right its is not in order to limiting the present invention, anyly has the knack of this technical staff, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion with the content that claim was defined.
Claims (9)
1. plane antenna structure, build in being suitable for an electronic installation in, it is characterized in that this plane antenna structure comprises:
One earthing conductor;
One first radiation sheet metal is equipped on the top of this earthing conductor, and has a feed point;
One short-circuiting jumper, the one end is connected to this earthing conductor, and its other end is connected to a lateral margin of this first radiation sheet metal, and this first radiation sheet metal is positioned at a side of the projection of this short-circuiting jumper on this earthing conductor in the projection on this earthing conductor; And
One second radiation sheet metal, be equipped on the top of this earthing conductor and this first radiation sheet metal, and this second radiation sheet metal is in the both sides of the projection on this earthing conductor across the projection of this short-circuiting jumper on this earthing conductor, and this second radiation sheet metal is overlapped in this projection of first radiation sheet metal on this earthing conductor in the projection part on this earthing conductor.
2. plane antenna structure as claimed in claim 1 is characterized in that, this first radiation sheet metal is parallel to this second radiation sheet metal.
3. plane antenna structure as claimed in claim 1 is characterized in that, this earthing conductor is a grounded metal sheet.
4. plane antenna structure as claimed in claim 1 is characterized in that, this earthing conductor is a ground plane of a circuit board.
5. plane antenna structure as claimed in claim 1 is characterized in that, also comprises:
One presents sheet metal, and the one end is connected to this feed point, and its other end is electrically connected to a signal source.
6. plane antenna structure as claimed in claim 1 is characterized in that, also comprises:
One feed lines, the one end is connected to this feed point, and its other end is electrically connected to a signal source.
7. plane antenna structure as claimed in claim 1, it is characterized in that, this first radiation sheet metal has one first groove, it is separated into one first radiant section and one second radiant section with this first radiation sheet metal, and this second radiation sheet metal has one second groove, it is separated into one the 3rd radiant section and one the 4th radiant section with this second radiation sheet metal, and this first radiant section and the 3rd radiant section constitute a first frequency radiant body, and this second radiant section and the 4th radiant section constitute a second frequency radiant body.
8. plane antenna structure as claimed in claim 7 is characterized in that, this first groove is around this feed point, and the two ends of this first groove end at this lateral margin that this first radiation sheet metal is connected with this short-circuiting jumper.
9. plane antenna structure as claimed in claim 8 is characterized in that, the two ends of this second groove end at a lateral margin of contiguous this first radiation sheet metal of this second radiation sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100864748A CN101093912B (en) | 2006-06-23 | 2006-06-23 | Structure of plane antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100864748A CN101093912B (en) | 2006-06-23 | 2006-06-23 | Structure of plane antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101093912A true CN101093912A (en) | 2007-12-26 |
| CN101093912B CN101093912B (en) | 2011-06-22 |
Family
ID=38992015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100864748A Active CN101093912B (en) | 2006-06-23 | 2006-06-23 | Structure of plane antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101093912B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110877A (en) * | 2010-12-31 | 2011-06-29 | 苏州佳世达电通有限公司 | Planar antenna structure and communication terminal using same |
| WO2018170966A1 (en) * | 2017-03-20 | 2018-09-27 | 南京邮电大学 | Quasi-isotropic antenna |
| CN110729552A (en) * | 2018-07-16 | 2020-01-24 | 和硕联合科技股份有限公司 | Multiple-input multiple-output antenna structure |
| CN113140895A (en) * | 2020-01-17 | 2021-07-20 | 大唐移动通信设备有限公司 | Dual-frequency antenna and communication equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI110395B (en) * | 1997-03-25 | 2003-01-15 | Nokia Corp | Broadband antenna is provided with short-circuited microstrips |
| WO1999028990A1 (en) * | 1997-12-01 | 1999-06-10 | Kabushiki Kaisha Toshiba | Multifrequency inverted f-type antenna |
-
2006
- 2006-06-23 CN CN2006100864748A patent/CN101093912B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110877A (en) * | 2010-12-31 | 2011-06-29 | 苏州佳世达电通有限公司 | Planar antenna structure and communication terminal using same |
| WO2018170966A1 (en) * | 2017-03-20 | 2018-09-27 | 南京邮电大学 | Quasi-isotropic antenna |
| CN110729552A (en) * | 2018-07-16 | 2020-01-24 | 和硕联合科技股份有限公司 | Multiple-input multiple-output antenna structure |
| CN110729552B (en) * | 2018-07-16 | 2023-08-22 | 和硕联合科技股份有限公司 | Multiple input multiple output antenna structure |
| CN113140895A (en) * | 2020-01-17 | 2021-07-20 | 大唐移动通信设备有限公司 | Dual-frequency antenna and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101093912B (en) | 2011-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5653946B2 (en) | Modified inverted-F antenna for wireless communication | |
| US8823596B2 (en) | Monopole slot antenna for multiple input and multiple output | |
| US20130113671A1 (en) | Slot antenna | |
| KR20110043637A (en) | Compact multiband antenna | |
| CN102396109A (en) | Multi-band dipole antennas | |
| TWI487191B (en) | Antenna system | |
| CN108281754A (en) | Multi-antenna device | |
| CN109309279B (en) | Antenna structure | |
| CN101093912B (en) | Structure of plane antenna | |
| CN111478016B (en) | Mobile device | |
| US7598912B2 (en) | Planar antenna structure | |
| US20080094303A1 (en) | Planer inverted-F antenna device | |
| CN106299703A (en) | Wireless communication device and antenna module thereof | |
| US20090262027A1 (en) | Dual-Band Antenna | |
| CN111755811A (en) | Dual band antenna | |
| EP2037532A1 (en) | Flat dual-band antenna | |
| CN101431176A (en) | Double-frequency antennae | |
| CN101521309B (en) | Dual-frequency antenna | |
| CN104681993A (en) | Antenna device | |
| TWI466378B (en) | Flexible combo antenna | |
| US8416136B2 (en) | Modification on monopole antenna | |
| KR101218718B1 (en) | Diversity antenna device and mobile using the same | |
| US20140285380A1 (en) | Antenna structure and the manufacturing method therefor | |
| CN220544229U (en) | Terminal antenna and mobile terminal | |
| US20080111753A1 (en) | Dual band printed antenna and dual band printed antenna module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |