CN203466290U - Micro double-frequency antenna - Google Patents
Micro double-frequency antenna Download PDFInfo
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- CN203466290U CN203466290U CN201320544431.5U CN201320544431U CN203466290U CN 203466290 U CN203466290 U CN 203466290U CN 201320544431 U CN201320544431 U CN 201320544431U CN 203466290 U CN203466290 U CN 203466290U
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Abstract
The utility model relates to a micro double-frequency antenna. The micro double-frequency antenna comprises a double-frequency microstrip inverted-F antenna and a grounding board, wherein the double-frequency microstrip inverted-F antenna comprises a plane rectangular sheet metal and a short circuit sheet metal, the short circuit sheet metal is placed at a relatively shorter edge of the plane rectangular sheet metal, the plane rectangular sheet metal is partially provided with an L-shaped slot to reduce an antenna area, the antenna is divided into two radiation units, the two frequency band radiation units can be adjusted, the antenna is mounted at an upper portion of the grounding board, and the dimension is 28mm*20mm*8mm. The antenna is applied to a GSM950MHz/DCS1750MHz frequency band and can realize double-frequency band wireless application.
Description
Technical field
The utility model relates to propagation and the reception field of mobile communication signal.
Background technology
Multi-functional, portable development trend along with wireless communication terminal, as the antenna system of receiving and transmitting front end also towards miniaturization, multipurpose future development, so in the design of miniature antenna, volume is little, lightweight, can be conformal with carrier, be easy to active device and circuit integratedly, the microstrip antenna of being convenient to realize multiple-frequency operation has obtained paying close attention to widely and applying.
Summary of the invention
The utility model provides a kind of Miniaturized dual-frequency antenna of the GSM950MHz/DCS1750MHz of being applied to frequency range, especially a kind of double frequency microstrip antenna.Antenna size is 28mmx20mmx8mm, has realized the object that reduces antenna size, has met the requirement of radio communication terminal miniaturization.Double-frequency micro-strip antenna is functional, meets mobile communication standard, has good application performance.
A kind of Miniaturized dual-frequency antenna, comprise double frequency microstrip antenna and ground plate, wherein double frequency microstrip antenna comprises the rectangular metal sheet of a plane, a short-circuiting jumper, this short-circuiting jumper is placed in planar rectangular sheet metal compared with the edge of minor face, rectangular metal sheet portion in plane separates L shaped groove, to reduce antenna area, antenna has been divided into two radiating elements simultaneously, the radiating element of two frequency bands can regulate respectively.Further, described antenna applications, in GSM950MHz/DCS1750MHz frequency range, can realize the wireless application of two-band.Described antenna is arranged on ground plate top, is of a size of 28mmx20mmx8mm.Between antenna and ground plate, at a distance of 8mm, air dielectric is filled in centre.
The composite material of optional filling timber prepared material, foamed material, shock-absorbing plastic or above-mentioned material also between described antenna and ground plate.
The thickness of described sheet metal is preferably 0.1mm-1.5mm.Further, the thickness of described sheet metal is preferably 0.5mm.
Accompanying drawing explanation
Fig. 1 Miniaturized dual-frequency antenna structure vertical view;
Fig. 2 Miniaturized dual-frequency antenna structure side view;
Fig. 3 is double frequency microstrip antenna assumption diagram.
Embodiment
Clearer for making the utility model implement object, technical scheme and advantage, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment is as follows:
1. Miniaturized dual-frequency antenna
It is a kind of compact dual-frequency flat plane antenna that planar inverted-F antenna is called for short PIEA.As shown in Figure 1, 2, the typical structure of PIEA comprises double frequency microstrip antenna and ground plate, wherein double frequency microstrip antenna comprises the rectangular metal sheet of a plane, a narrow short-circuiting jumper, and short-circuiting jumper is placed in planar rectangular sheet metal compared with the edge of minor face.The object of designing antenna is in needed operating frequency, to obtain desired electrical characteristic.
2. double frequency microstrip antenna
Double frequency microstrip antenna simulation architecture as shown in Figure 3.Its structure is by the metal patch portion at double frequency microstrip antenna, to separate L shaped groove to realize, metal patch is improved to reduce antenna area, and the problem that while fully taking into account antenna practical application, technique is manufactured, designed short circuit band and feeder line one bifurcation structure, be conducive to chip substrate integrated.Designed antenna can work in GSM950MHz/DCS1750MHz herein, due to the existence of L shaped groove, antenna has been divided into two radiating elements, and two frequency band antenna performances can regulate respectively.Antenna is arranged on ground plate top, size be between 28mmx20mm. antenna and ground plate at a distance of 8mm, air dielectric can be filled in centre.The antenna lower right corner is the rectangle of a 4mmx6mm, is divided into two forks of short circuit band and microstrip feed line below.
The physical dimension of the antenna after design is: L=28mm, W=20mm, L1=12mm, L2=14mm, L3=4mm, L4=8mm, L5=5mm, W1=8mm, W2=8mm, W3=19mm.
Between antenna and ground plate, all right filling timber prepared material, foamed material or shock-absorbing plastic, be more conducive to the transmission of wireless signal, and can not cause any decay to it.The thickness of above-mentioned sheet metal is between 0.1mm-1.5mm, is preferably 0.5mm, and the launching effect of signal is best.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the illustrated technical scheme of aforementioned each embodiment, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the illustrated technical scheme of each embodiment of the utility model.
Claims (5)
1. a Miniaturized dual-frequency antenna, it is characterized in that: comprise double frequency microstrip antenna and ground plate, wherein double frequency microstrip antenna comprises the rectangular metal sheet of a plane, a short-circuiting jumper, this short-circuiting jumper is placed in planar rectangular sheet metal compared with the edge of minor face, rectangular metal sheet portion in plane separates L shaped groove, antenna has been divided into two radiating elements simultaneously, described double frequency microstrip antenna is arranged on ground plate top, be of a size of 28mmx20mmx8mm, between this antenna and ground plate at a distance of 8mm.
2. Miniaturized dual-frequency antenna as claimed in claim 1, is characterized in that, between double frequency microstrip antenna and ground plate, can fill air dielectric.
3. Miniaturized dual-frequency antenna as claimed in claim 1, is characterized in that, can filling timber prepared material between double frequency microstrip antenna and ground plate, foamed material, shock-absorbing plastic.
4. Miniaturized dual-frequency antenna as claimed in claim 2 or claim 3, is characterized in that, the thickness of described rectangular metal sheet and short-circuiting jumper is 0.1mm-1.5mm.
5. Miniaturized dual-frequency antenna as claimed in claim 4, is characterized in that, the thickness of described rectangular metal sheet and short-circuiting jumper is preferably 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544431.5U CN203466290U (en) | 2013-09-04 | 2013-09-04 | Micro double-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544431.5U CN203466290U (en) | 2013-09-04 | 2013-09-04 | Micro double-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466290U true CN203466290U (en) | 2014-03-05 |
Family
ID=50178631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320544431.5U Expired - Fee Related CN203466290U (en) | 2013-09-04 | 2013-09-04 | Micro double-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466290U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449347A (en) * | 2014-05-30 | 2016-03-30 | 联想(北京)有限公司 | Antenna and communication electronic equipment |
| CN105977627A (en) * | 2016-06-08 | 2016-09-28 | 浙江工商大学 | Asymmetric coplanar feed F-shaped monopole antenna |
| CN115986379A (en) * | 2023-02-23 | 2023-04-18 | 苏州浪潮智能科技有限公司 | Planar antenna and wireless communication equipment |
-
2013
- 2013-09-04 CN CN201320544431.5U patent/CN203466290U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449347A (en) * | 2014-05-30 | 2016-03-30 | 联想(北京)有限公司 | Antenna and communication electronic equipment |
| CN105977627A (en) * | 2016-06-08 | 2016-09-28 | 浙江工商大学 | Asymmetric coplanar feed F-shaped monopole antenna |
| CN105977627B (en) * | 2016-06-08 | 2018-12-25 | 浙江工商大学 | A kind of F shape monopole antenna of asymmetric coplanar feed |
| CN115986379A (en) * | 2023-02-23 | 2023-04-18 | 苏州浪潮智能科技有限公司 | Planar antenna and wireless communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20180904 |
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| CF01 | Termination of patent right due to non-payment of annual fee |