CN201167131Y

CN201167131Y - Double-frequency coupling antennae

Info

Publication number: CN201167131Y
Application number: CN 200820000197
Authority: CN
Inventors: 黄钦雄; 彭明熯; 林宗铭; 罗家镇; 陈明来
Original assignee: Joinsoon Electronic Manufacturing Co Ltd
Current assignee: DONGGUAN JOINSOON ELECTRONICS Manufacturing Co Ltd
Priority date: 2008-01-21
Filing date: 2008-01-21
Publication date: 2008-12-17
Anticipated expiration: 2018-01-21

Abstract

The utility model is a dual-frequency coupled antenna which is characterized in that the dual-frequency coupled antenna includes the following components: an insulating base plate for providing a printing set metal film layer; a grounding part, which has one end connected with a first radiation part electrically and the other end connected with a second radiation part, and has the same electric potential as the grounding end of an antenna receiver; the first radiation part, which is provided with a middle turning coupled section energy-coupled with the second radiation part, extends into a feed-in point for being connected with a signal feed-in line electrically, and then connected to the grounding part; the second radiation part, which connectedly arranges an extended turn at the grounding part and forms an electrical insulating corresponding interval between an end part of the second radiation part and the coupled section of the first radiation part; and the signal feed-in line, which is a coaxial cable with a main signal end line connected with the feed-in point of the first radiation part electrically, and a grounding end line connected with the grounding part electrically for sending the signal into a receiving/transmitting circuit.

Description

The double frequency coupled antenna

Technical field

The utility model relates to a kind of double frequency coupled antenna, what be particularly related to is an a kind of inverse-F antenna and coupled antenna one each other that is provided with in the plane, have double frequency and volume is little, provide wireless network employed dual-band antenna, its effect by coupling can reach optimized frequency response.

Background technology

WLAN has four kinds of standards surely, comprise IEEE802.11, the IEEE802.11b and the Bluetooth that are useful in the 2.4GHz frequency range, and the IEEE802.11a that is useful in the 5GHz frequency range, wherein when the wireless application electronic installation is operated in a plurality of radio band for adapting to the various criterion needs, then need corresponding antenna to cooperate.

See also existing dual-band antenna 100 stereograms of Fig. 1, it is to utilize a kind of reversed F-typed dual-band antenna, in order to receive the signal of a first frequency and a second frequency, described antenna 100 is provided with one first plane, 200 conducting subassemblies and one second plane, 300 conducting subassemblies, described first plane 200 conducting subassemblies are a L type structure, described again second plane 300 conducting subassemblies are a crooked rectangular configuration, and it is vertical with first plane conduct component and be connected a contact 400, when second plane, 300 conducting subassembly areas are excessive, easily cause fracture with described first plane 200 conducting subassembly indirection point.Though but above-mentioned antenna 100 its can adjust its frequency range, impedance matching and gain by the moulding of described first plane conduct component and second plane conduct component, the gain of the described antenna of the normal influence of area size of right described second plane conduct component, if needing also, the antenna of high frequency range certainly will will strengthen its substrate area, therefore be confined to and be embedded the spatial limitation between device, so described antenna can't effectively fill part its substrate area of expansion.

Therefore prior art summary has following shortcoming:

1. prior art is subject to limited space, and also high frequency range can't be arranged.

2. prior art easily causes the fracture with the described first plane conduct component indirection point when the second plane conduct component area is excessive.

3. when prior art is used, induction resonance scarce capacity, shortcomings such as the smaller increase circuit design of voltage standing wave(VSW) difficulty.

4. the shortcoming that the prior art processing procedure is loaded down with trivial details, manufacturing cost is too high and use installing to be difficult for.

So, how above-mentioned defective is forgone, be the place of the technical difficulties of this case utility model designer institute desire solution.In view of this, this case utility model designer is based on the experience of being engaged in the Related product design for many years, thoughts are in the inconvenience of above-mentioned traditional articles for use, take great pains to attain one's goal through for many years and to concentrate on studies, study improvement, finally the many shortcomings of existing dual-band antenna of can forgoing are are successfully researched and developed and are finished this case, and the utility model is born, and to promote effect.

Summary of the invention

The purpose of this utility model is: a kind of double frequency coupled antenna is provided, particularly about on the plane, be provided with an inverse-F antenna and coupled antenna one each other, has double frequency and volume is little, provide wireless network employed dual-band antenna, its effect by coupling can reach optimized frequency response.

The purpose of this utility model also is: provide a kind of and have low cost of manufacture, processing procedure is simple and easy and uses installing easily, have moulding light and handy (Low Profile) and lightweight advantage again.

The purpose of this utility model is in addition: provide a kind of have volume little, look good with various electronics and use, and the tool market competitiveness is that value is required with reality on business circles and the industrial circle.

The purpose of this utility model is again: a kind of bifrequency that has is provided, possesses the broadband character of coupled antenna, the low feed-in that radiation efficiency is high is lost and is hanged down reflection loss again.

For realizing these the purpose of this utility model, and according to such as enforcement and the general description and other advantage, the utility model provides a kind of double frequency coupled antenna, it is that technical scheme is, its feature comprises:

One insulated substrate provides printing and installs metal film layer, and described metal film layer includes: grounding parts, first Department of Radiation and second Department of Radiation;

One grounding parts is to be formed by the electrical conductor of a metal film layer, and the one end is electrically connected with first Department of Radiation, and its other end is to be connected with second Department of Radiation, and described grounding parts is idiostatic with the earth terminal of antenna receiver in addition;

One first Department of Radiation, for metal film layer is printed on the insulated substrate, it is provided with, and the turnover coupled section is coupled with the second Department of Radiation energy in the middle of one, and extends to a load point and be electrically connected with signal feed-in line, is connected to grounding parts again;

One second Department of Radiation, for metal film layer is printed on the described insulated substrate, it is connected with at grounding parts and extends turnover, again between its end and the first Department of Radiation coupled section, form a corresponding spacing that is electrically insulated distance, to reach the frequency response of coupling energy induction optimization;

One signal feed-in line is coaxial wire, and its main signal end line is to be electrically connected with the load point of first Department of Radiation, and its ground connection end line is electrically connected with described grounding parts again, in order to described signal is sent in reception/radiating circuit.

Aspect another, described double frequency coupled antenna comprises that further wherein said first Department of Radiation to free-ended total length, is about 1/4th of frequency response wavelength from load point of the present utility model.

Aspect another, described double frequency coupled antenna comprises that further the frequency radiation frequency range of wherein said first Department of Radiation is 2.4 MHz to 2.5 MHz of the present utility model.

Aspect another, described double frequency coupled antenna comprises that further the wherein said second Department of Radiation total length is about 1/4th of frequency response wavelength of the present utility model.

Aspect another, described double frequency coupled antenna comprises that further the frequency radiation frequency range of wherein said second Department of Radiation is 4.8 MHz to 5.1 MHz of the present utility model.

The beneficial effects of the utility model are compared with the prior art, well solved the double frequency coupled antenna, little, the high-quality problem of volume looks good with various electronics and uses, and the tool market competitiveness is that value is required with reality on business circles and the industrial circle.Its effect by coupling can reach optimized frequency response, provides wireless network employed dual-band antenna.Reach low cost of manufacture, processing procedure is simple and easy and has used installing easily, had moulding light and handy (Low Profile) and lightweight effect again.

Description of drawings

Fig. 1 has the dual-band antenna stereogram now;

Fig. 2 is a plane graph of the present utility model;

Fig. 3 is a coupled section schematic diagram of the present utility model;

Fig. 4 is an enforcement illustration of the present utility model.

Description of reference numerals: 100-antenna; 200-first plane; 300-second plane; The 400-contact;

1-double frequency coupled antenna; The 10-insulated substrate; The 2-grounding parts; 3-first Department of Radiation; The 30-coupled section; The 31-load point; The 32-free end; 4-second Department of Radiation; The 40-end; 5-signal feed-in line; 50-main signal end line; 51-ground connection end line; The a-corresponding spacing; The b-width.

Embodiment

Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.

At first seeing also Fig. 2 to shown in Figure 4, is plane graph of the present utility model, coupled section schematic diagram of the present utility model and enforcement illustration of the present utility model, a kind of double frequency coupled antenna 1 of the utility model wherein, and it comprises:

One insulated substrate 10 provides printing and installs metal film layer, and described metal film layer includes: grounding parts 2, first Department of Radiation 3 and second Department of Radiation 4;

One grounding parts 2 is to be formed by the electrical conductor of a metal film layer, and the one end is electrically connected with first Department of Radiation 3, and its other end is to be connected with second Department of Radiation 4, and described grounding parts 2 is idiostatic with the earth terminal of antenna receiver in addition;

One first Department of Radiation 3, for metal film layer is printed on the insulated substrate, turnover coupled section 30 and second Department of Radiation, 4 energy coupling in the middle of it is provided with one, and extend to a load point 31 and be electrically connected with signal feed-in line 5, be connected to grounding parts 2 again, described again first Department of Radiation 3, total length from load point 31 to free end 32, be about 1/4th of frequency response wavelength, the frequency radiation frequency range of described first Department of Radiation 3 is 2.4 MHz to 2.5 MHz in addition;

One second Department of Radiation 4, for metal film layer is printed on the described insulated substrate, it is connected with at grounding parts 2 and extends turnover, again between its end 40 and first Department of Radiation, 3 coupled section 30, form a corresponding spacing a who is electrically insulated distance, to reach the frequency response of coupling energy induction optimization, described again second Department of Radiation, 4 total lengths are about 1/4th of frequency response wavelength, and the frequency radiation frequency range of described second Department of Radiation 4 is 4.8 MHz to 5.1 MHz in addition;

One signal feed-in line 5 is coaxial wire, and its main signal end line 50 is to be electrically connected with the load point 31 of first Department of Radiation 3, and its ground connection end line 51 is electrically connected with described grounding parts 2 again, in order to described signal is sent in reception/radiating circuit.

See also shown in Figure 3ly again, between described second Department of Radiation 4 and described first Department of Radiation 3, form a corresponding spacing a who is electrically insulated distance,, can adjust and reach coupling energy and respond to the optimization frequency response by the width b of corresponding spacing a and second Department of Radiation 4.

Show its progressive and practicality for the utility model is also added, hereby its advantage be listed below:

The utility model low cost of manufacture, processing procedure is simple and easy and use installing easily.

2. the utlity model has moulding light and handy (LowProfile) and lightweight advantage.

Volume little, look good with various electronics and use, and the tool market competitiveness.

4. have on business circles and the industrial circle value with actual required.

In sum, the utility model is being broken through under the previous technical pattern, has reached really that institute's wish promotes Effect, and also non-be familiar with described skill person institute easily full of beard with; Moreover, before the utility model application not Open, the progressive of its tool, practicality, the aobvious application important document that has met new patent proposes new in accordance with the law The type application.

More than explanation is novel just illustrative for this, and nonrestrictive, ordinary skill people The member understands, and in the situation that does not break away from the spirit and scope that following claims limit, can make and being permitted Revise changes more, or equivalence, but all will fall in the protection domain of the present utility model.

Claims

1, a kind of double frequency coupled antenna, it is characterized in that: it comprises:

One insulated substrate, it provides printing that metal film layer is set;

One grounding parts is to be formed by the electrical conductor of a metal film layer, and the one end is electrically connected with one first Department of Radiation, and its other end is to be connected with second Department of Radiation, and described grounding parts is idiostatic with the earth terminal of antenna receiver in addition;

Described first Department of Radiation, for metal film layer is printed on the described insulated substrate, it is provided with, and the turnover coupled section is coupled with one second Department of Radiation energy in the middle of one, and extends to a load point and be electrically connected with a signal feed-in line, is connected to grounding parts again;

Described second Department of Radiation, for metal film layer is printed on the described insulated substrate, it is connected with at grounding parts and extends turnover, between its end and the described first Department of Radiation coupled section, forms a corresponding spacing that is electrically insulated again;

Described signal feed-in line is coaxial wire, and its main signal end line is to be electrically connected with the load point of described first Department of Radiation, and its ground connection end line is electrically connected with described grounding parts again, in order to described signal is sent in reception/radiating circuit.

2, double frequency coupled antenna according to claim 1 is characterized in that: described first Department of Radiation is 1/4th of a frequency response wavelength from load point to free-ended total length.

3, double frequency coupled antenna according to claim 1 is characterized in that: the frequency radiation frequency range of described first Department of Radiation is 2.4 MHz to 2.5 MHz.

4, double frequency coupled antenna according to claim 1 is characterized in that: the described second Department of Radiation total length is 1/4th of a frequency response wavelength.

5, double frequency coupled antenna according to claim 1 is characterized in that: the frequency radiation frequency range of described second Department of Radiation is 4.8 MHz to 5.1 MHz.