CN1913223B - Multi-frequency plane antenna - Google Patents
Multi-frequency plane antenna Download PDFInfo
- Publication number
- CN1913223B CN1913223B CN 200510089767 CN200510089767A CN1913223B CN 1913223 B CN1913223 B CN 1913223B CN 200510089767 CN200510089767 CN 200510089767 CN 200510089767 A CN200510089767 A CN 200510089767A CN 1913223 B CN1913223 B CN 1913223B
- Authority
- CN
- China
- Prior art keywords
- radiating surface
- radiation
- department
- frequency range
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A multi-frequency plane antenna is set on a circuit base plate including a first radiation part working on a first frequency band and a second radiation part working at a second band higher than said first band, in which, the first radiation part includes a first radiation surface, the first end is connected with a feed point, the second end opposite to the first is connected with an earth point, said second radiation part includes a second radiation face, the third end of which is connected with the feed point, the other fourth end opposite to the third is connected with the earth point, particularly, a groove radiation part is formed at the side closing to said earth point of the first radiation part and extending to its opposite side edge capable of generating resonance at the second band to generate resonance at the second band so as to increase the working frequency width and gain of the second radiation part at the second band.
Description
Technical field
The invention relates to a kind of built-in flat plane antenna, be meant a kind of built-in plane multifrequency antenna especially for the mobile communications device use.
Background technology
As shown in Figure 1, be a kind of multifrequency (GSM900, DCS1800 and PCS1900) flat plane antenna 1 that is arranged on the inner circuit substrate 100 of a mobile phone (figure does not show) of tradition, it comprises one first Department of Radiation 11 and one second Department of Radiation 12.First Department of Radiation 11 is to be operated in GSM900MHz low frequency frequency range, it has first radiating surface 13 that without exception is rectangle, one minor face 131 by first radiating surface 13 bends the first radiation line segment 15 that extends to a load point 14, and another minor face 132 by first radiating surface 13 bends the second radiation line segment 16 that extends to an earth point 10.And a lower-left corner of first radiating surface 13 forms a rectangle breach 130, make minor face 131 short than minor face 132, and load point 14 is positioned at minor face 131 belows and contiguous minor face 131, and earth point 10 is long limit 133 outsides adjacent with rectangle breach 130 of being positioned at first radiating surface 13 and near minor face 132, make load point 14 and earth point 10 mutually away from.
Second Department of Radiation 12 is to be operated in the DCS1800MHz/PCS1900MHz high-frequency band, it has second radiating surface 17 that is rectangle, one minor face 171 by second radiating surface 17 bends the 3rd radiation line segment 18 that extends to load point 14, and another minor face 172 by second radiating surface 17 bends the 4th radiation line segment 19 that extends to earth point 10.And second radiating surface 17 is slightly smaller than the rectangle breach 130 of first radiating surface 13, and is arranged on rectangle breach 130 places at intervals with first radiating surface 13.
And shown in the line segment 20 of Fig. 3, it is the measurement of the voltage standing wave ratio of multi-frequency plane antenna 1, unsatisfactory by visible multi-frequency plane antenna 1 shown in the figure at voltage standing wave ratio (greater than the 3) value and the frequency range of high band part, for another example shown in the diamond block of Fig. 4, be to represent the yield value of multi-frequency plane antenna 1, by wherein multi-frequency plane antenna 1 is also not satisfactory at the yield value of high band as can be known at different frequency.But, and can't increase gain and the work bandwidth of multi-frequency plane antenna 1 by increasing extra antenna in the high band part because it is limited to be subject to the area of circuit substrate.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of do not need additionally to take up room can increase the high band frequency range of antenna and the multi-frequency plane antenna of gain easily and effectively.
So multi-frequency plane antenna of the present invention is located on the circuit substrate, it comprises one first Department of Radiation and one second Department of Radiation.This first Department of Radiation is operated in one first frequency range, and has one first radiating surface, and one first end of this first radiating surface is connected with a load point, and its one second end relative with this first end is connected with an earth point.This second Department of Radiation is operated in second frequency range high than this first frequency range, and has one second radiating surface, and one the 3rd end of this second radiating surface is connected with this load point, and its one four end relative with the 3rd end is connected with this earth point.Particularly, more form a groove shape Department of Radiation towards its opposite side vertical extent at this first radiating surface near this earth terminal place, it can increase the work bandwidth and the gain of this second Department of Radiation in this second frequency range place generation resonance.
Description of drawings
Fig. 1 is the shape organigram of traditional multifrequency antenna;
Fig. 2 is the shape organigram of a preferred embodiment of multi-frequency plane antenna of the present invention;
Fig. 3 is a voltage standing wave ratio figure, shows that wherein traditional multi-frequency plane antenna and present embodiment have the voltage standing wave ratio oscillogram of multi-frequency plane antenna of the groove shape Department of Radiation of different length; And
Fig. 4 be a frequency and/the gain table of comparisons, show that wherein traditional multi-frequency plane antenna and present embodiment have the yield value that the multi-frequency plane antenna of the groove shape Department of Radiation of different length measures under different frequency responds.
The primary clustering symbol description
3 multi-frequency plane antennas, 10 earth points
11 ' first Department of Radiation, 12 second Departments of Radiation
13 ' first radiating surface, 14 load points
15 first radiation line segments, 16 second radiation line segments
17 second radiating surfaces 18 the 3rd radiation line segment
19 the 4th radiation line segments, 130 rectangle breach
131,132,171,172 minor faces, 133,134 long limits
135 groove shape Departments of Radiation
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in a following cooperation DETAILED DESCRIPTION OF THE PREFERRED with reference to the accompanying drawings, can clearly present.
Consult shown in Figure 2, it is the circuit diagram of a preferred embodiment of multi-frequency plane antenna of the present invention, and as shown in Figure 1, the multi-frequency plane antenna 3 of present embodiment is arranged on the mobile phone circuit substrate 100 of (figure does not show), and its basic building block and shape structure system is identical with multi-frequency plane antenna 1 shown in Figure 1, that is comprise one first Department of Radiation 11 ' and one second radiation 12 equally.And first Department of Radiation 11 ' is operated in one first frequency range, it is GSM900, it has one first radiating surface 13 ', one minor face 131 by first radiating surface 13 ' extends to the first radiation line segment 131 of load point 14, and another minor face 132 by first radiating surface 13 ' extends to the second radiation line segment 132 of earth point 10.
And the different principal character of present embodiment and traditional multi-frequency plane antenna 1, be also at first radiating surface, 13 ' last 133 places, long limit near earth point 10, another long limit 134 towards first radiating surface 13 ' extends to form a groove shape Department of Radiation 135, this groove shape Department of Radiation 135 is long groove shape openings, and its long limit 133 by first radiating surface 13 ' extends perpendicularly near another long limit 134 toward another long limit 134.And the length of groove shape Department of Radiation 135 and width allow to locate to produce resonance in second frequency range (being DCS1800MHz/PCS1900MHz), and increase work bandwidth and the gain of second Department of Radiation 12 in second frequency range through suitably design.
And as shown in Figure 3, line segment 21 and 22 represents to have the voltage standing wave ratio measurement of multi-frequency plane antenna 3 of the groove shape Department of Radiation 135 of different length (18.5mm and 16mm) respectively, by among the figure as can be known, by groove shape Department of Radiation 135 second Department of Radiation 12 is dropped to below 2 at the voltage standing wave(VSW) ratio of second frequency range, and voltage standing wave(VSW) ratio is lower than the more traditional multi-frequency plane antenna 1 of 2 the second frequency range frequency range scope obviously to be increased manyly, and the length of groove shape Department of Radiation 135 more or less can influence frequency range and the yield value of second Department of Radiation 12 in second frequency range.
Again as shown in Figure 4 as can be known, when wherein rectangular block represents that present embodiment is provided with groove shape Department of Radiation 135 on first radiating surface 13 ', the yield value of multi-frequency plane antenna 3 under different frequency, by visible groove shape Department of Radiation 135 wherein second Department of Radiation 12 is obviously increased with respect to traditional multi-frequency plane antenna 1 in the gain of second frequency range many, especially in PCS1900MHz frequency range part.
As shown in the above description, under the situation that load point 14 and earth point 10 comparatively separate, present embodiment forms one by the groove shape Department of Radiation 135 that can produce resonance near 133 places, long limit of earth point 10 toward another long limit 134 extensions one of first radiating surface 13 ' at the second frequency range place by going up at first radiating surface 13 ' of multi-frequency plane antenna 3, not only can effectively increase of work bandwidth and the gain of second Department of Radiation 12 in second frequency range, and do not need additionally to take the area of circuit substrate, and can be by the length of suitable adjustment groove shape Department of Radiation 135, wide or shape shape is controlled work bandwidth and the gain of second Department of Radiation 12 in second frequency range, and reaches effect of the present invention and purpose really.
The above person only is the preferred embodiments of the present invention, and when not limiting scope of the invention process with this, promptly the simple equivalent of doing according to content of the present invention generally changes and modifies, and all still belongs in the scope that the present invention contains.
Claims (6)
1. a multi-frequency plane antenna is located on the circuit substrate, comprising:
One first Department of Radiation is operated in one first frequency range, and has one first radiating surface, and one first end of this first radiating surface is connected with a load point, and one is connected with an earth point with this first end second opposed end; And
One second Department of Radiation is operated in second frequency range high than this first frequency range, and has one second radiating surface, and one the 3rd end of this second radiating surface is connected with this load point, and the 4th end that one is relative with the 3rd end is connected with this earth point;
Wherein, first end of contiguous this first radiating surface of described load point, second end of contiguous this first radiating surface of described earth point,
It is characterized in that:
In the side edge of this first radiating surface, more extend to form one and can produce the groove shape Department of Radiation that resonates at this second frequency range place towards its relative side near this earth point.
2. multi-frequency plane antenna according to claim 1, it is characterized in that, wherein this first Department of Radiation comprises that also one extends to the first radiation line segment of this load point by the bending of this first end, and one extend to the second radiation line segment of this earth point by the bending of this second end, this second Department of Radiation comprises that also one extends to the 3rd radiation line segment of this load point by the 3rd end, and one extends to the 4th radiation line segment of this earth point by the 4th end.
3. multi-frequency plane antenna according to claim 2, it is characterized in that, wherein this first radiating surface is a rectangle, the one corner has a rectangle breach, and this first end is a minor face adjacent with this rectangle breach of this first radiating surface, another minor face that this second end is this first radiating surface; This second radiating surface is a rectangle, its area is slightly little than this rectangle breach, and be arranged on this rectangle indentation, there at intervals with this first radiating surface, and the 3rd end is a minor face adjacent with this first end of this second radiating surface, the 4th end is another minor face of this second radiating surface; An and long limit adjacent of contiguous this first radiating surface of this earth point with this rectangle breach.
4. multi-frequency plane antenna according to claim 3, it is characterized in that, wherein this groove shape Department of Radiation is a long groove shape opening, and it is by the Chang Bianchu of contiguous this earth point of this first radiating surface, extends perpendicularly to towards another long limit of this first radiating surface near this another place, long limit.
5. multi-frequency plane antenna according to claim 1 is characterized in that, wherein this circuit substrate is to use for a mobile phone, and this first frequency range is GSM900MHz, and this second frequency range is DCS1800/PCS1900MHz.
6. multi-frequency plane antenna according to claim 1 is characterized in that, wherein this groove shape Department of Radiation produces resonance near this second frequency range can increase work bandwidth and the gain of this second Department of Radiation in this second frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510089767 CN1913223B (en) | 2005-08-09 | 2005-08-09 | Multi-frequency plane antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510089767 CN1913223B (en) | 2005-08-09 | 2005-08-09 | Multi-frequency plane antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1913223A CN1913223A (en) | 2007-02-14 |
| CN1913223B true CN1913223B (en) | 2010-05-05 |
Family
ID=37722066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510089767 Expired - Fee Related CN1913223B (en) | 2005-08-09 | 2005-08-09 | Multi-frequency plane antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1913223B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259775A (en) * | 1999-01-05 | 2000-07-12 | Lk－产品有限公司 | Plane and double frequency aerial, radio frequency device using same |
| US6670923B1 (en) * | 2002-07-24 | 2003-12-30 | Centurion Wireless Technologies, Inc. | Dual feel multi-band planar antenna |
-
2005
- 2005-08-09 CN CN 200510089767 patent/CN1913223B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259775A (en) * | 1999-01-05 | 2000-07-12 | Lk－产品有限公司 | Plane and double frequency aerial, radio frequency device using same |
| US6670923B1 (en) * | 2002-07-24 | 2003-12-30 | Centurion Wireless Technologies, Inc. | Dual feel multi-band planar antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1913223A (en) | 2007-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9774071B2 (en) | Antenna structure | |
| CN107305409B (en) | Mobile device | |
| CN103606736B (en) | A kind of Novel LTE antenna with all-metal frame | |
| US8599084B2 (en) | Mobile communication device and antenna | |
| CN102983405B (en) | Portable electronic device | |
| CN103151601B (en) | A kind of bottom edge slot coupled antenna | |
| US20090135066A1 (en) | Internal Monopole Antenna | |
| CN103779654B (en) | A kind of double-frequency broadband Bow―tie antenna adopting self similarity feeding technique | |
| TWI539662B (en) | Communication device with reconfigurable low-profile antenna element | |
| JP2007123982A (en) | Multiband compatible antenna system and communication terminal | |
| TWI622230B (en) | Antenna structure and wireless communication device using the same | |
| US9455499B2 (en) | Communication device and antenna element therein | |
| US8872705B2 (en) | Dual-band mobile communication device having an antenna structure integrated with a coupling feed thereof | |
| EP2615683A1 (en) | Communication device and antenna structure therein | |
| CN104425880A (en) | Mobile device | |
| EP2645477A1 (en) | Antenna and terminal having same | |
| US10109926B2 (en) | Antenna radiator, antenna and mobile terminal | |
| EP2930789A1 (en) | Broadband mobile phone antenna with parasitic antenna and mobile phone thereof | |
| JP2007159140A (en) | Antenna for sliding-type mobile communication terminal device | |
| EP2541678A1 (en) | Mobile communication antenna device and mobile communication terminal device | |
| CN103928748B (en) | Communicator | |
| TW202327166A (en) | Antenna structure | |
| CN102956959B (en) | Communication electronic device and antenna structure thereof | |
| EP2728665A1 (en) | Communication device and wide-band antenna element therein | |
| JP2010074489A (en) | Antenna device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20150809 |
|
| EXPY | Termination of patent right or utility model |