CN201025632Y

CN201025632Y - Integrated Multi-Band Antenna

Info

Publication number: CN201025632Y
Application number: CNU2006201555075U
Authority: CN
Inventors: 林敬基; 施凯; 吴裕源; 苏嘉宏
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2006-12-25
Filing date: 2006-12-25
Publication date: 2008-02-20
Anticipated expiration: 2016-12-25

Abstract

The utility model discloses an integrated multifrequency antenna has the multifrequency antenna of a roughly growth bar and one and the Wi-Fi antenna that the multifrequency antenna kept a distance, and the multifrequency antenna includes that an opening locates the slotted hole of department in the middle of one of them long limit, and sets up in the opening of slotted hole near department and has the feed-in portion of first feed-in point. The Wi-Fi antenna is provided with a third radiation part, wherein a fourth radiation part and a fifth radiation part are respectively and vertically extended from two ends of the third radiation part in a reverse direction, a sixth radiation part is vertically extended from one end of the fifth radiation part, a seventh radiation part parallel to the fifth radiation part is vertically extended from the sixth radiation part, an eighth radiation part extends from the free end of the seventh radiation part and is parallel to the third radiation part, and a second feed point is arranged at the joint of the sixth radiation part and the seventh radiation part. When the integrated multi-frequency antenna is used for wireless communication, the frequency bands of GSM850, EGSM, DCS1800, PCS1900 and W-CDMA 2100 can be transmitted and received through the multi-frequency antenna, and the frequency bands of 2.4GHz and 5.2GHz can be transmitted and received through the Wi-Fi antenna.

Description

Integrated multi-frequency antenna

Affiliated technical field

The utility model relates to a kind of integrated multi-frequency antenna, refers to a kind of integrated multi-frequency antenna that is used for electronic equipments such as notebook computer especially.

Background technology

Along with the high speed development of mobile communication and the universalness of electronic equipment, people more and more wish only to be equipped with the signal that a notebook computer or other electronic equipment just can be received and dispatched multiple different frequency bands.

Existing antenna mostly is inverted-F antenna, and (Planar Inverted-F Antenna, FIFA), unipole antenna (Monopole Antenna) and loop antenna (Loop Antenna), above-mentioned antenna all can't be contained multiple different frequency band.The frequency band that is used for communication field now comprises GSM850, EGSM, DCS1800, PCS1900, W-CDMA2100 and Wi-Fi.Yet existing antenna only possesses double frequency transmitting-receiving or three function of transmitting-receiving frequently, can't contain the bandwidth of communication field now.In addition, along with the miniaturization of hand-held electronic equipment development, need one can receive and dispatch multiple different frequency bands and be suitable for being installed in the multifrequency antenna of hand-held electronic equipment really.

The utility model content

Main purpose of the present utility model is to provide a kind of integrated multi-frequency antenna, can receive and dispatch multiple frequency bands such as GSM850, EGSM, DCS1800, PCS1900, W-CDMA2100,2.4GHz and 5.2GHz.

For achieving the above object, integrated multi-frequency antenna provided by the utility model is made of metal material, comprises a multifrequency antenna and a Wi-Fi antenna.The multifrequency antenna definition has the two relative first long limits and second long limit and two relative first end and the second ends, the place is provided with a slotted eye in the middle of multifrequency antenna, slotted eye has opening and is located at the multifrequency antenna wherein peristome at place and the extension that extends toward the second end from the blind end of peristome in the middle of the long limit, the length of extension and the length of being longer than peristome, setting by slotted eye, multifrequency antenna also is formed with one first Department of Radiation of adjoining peristome and extension in Chang Bianchu, in first end and be extended with second Department of Radiation, one feeding portion with first load point is set in the vicinity place of peristome, and feeding portion also has closer distance with first end.Wi-Fi antenna and multifrequency antenna keep a distance, comprise one the 3rd Department of Radiation, the 4th Department of Radiation and one the 5th Department of Radiation that have the 4th end in the 3rd Department of Radiation opposite end reverse vertical extension one, an end vertical extent of penetrating portion in the 5th width of cloth has one the 6th width of cloth to penetrate portion, the 7th parallel Department of Radiation of portion is penetrated with the 5th width of cloth by the 6th width of cloth portion of penetrating vertical extent one again, free end extension one in the 7th Department of Radiation has the 3rd end and penetrates the 8th parallel Department of Radiation of portion with the 3rd width of cloth, and is provided with second load point at the 6th Department of Radiation and the 7th Department of Radiation junction.

When integrated multi-frequency antenna of the present utility model is used for wireless telecommunications, see through shape, the design of feeding portion coupling position and the selection of the first load point position of multifrequency antenna, make multifrequency antenna have the resonance frequency band that a resonance bands and that comprises GSM850 and EGSM frequency band comprises DCS1800, PCS1900 and W-CDMA2100 frequency band.In addition, see through the shaped design of Wi-Fi antenna and the selection of the second load point position, make the Wi-Fi antenna can receive and dispatch 2.4GHz frequency band and 5.2GHz frequency band.So integrated multi-frequency antenna can be received and dispatched GSM850, EGSM, DCS1800, PCS1900, W-CDMA2100,2.4GHz and 5.2GHz frequency band by multifrequency antenna and mistake Wi-Fi antenna.

Description of drawings

In Figure of description:

Fig. 1 is the schematic diagram of the integrated multifrequency antenna of the utility model.

Fig. 2 is that the integrated multifrequency antenna of the utility model is assembled in the rearview on the notebook computer.

Fig. 3 is that the integrated multifrequency antenna of the utility model is assembled in the part front view on the notebook computer.

The description of reference numerals of each assembly is as follows among the figure:

Integrated multi-frequency antenna 100 multifrequency antennas 1

First,

second

10,11 first,

second ends

12,13, long limit

Slotted eye 14 peristomes 140

Extension 141 first Departments of Radiation 15

Second Department of Radiation, 16 feeding portions 17

First load point, 2 first grounding parts 3

First match circuit, 4 Wi-Fi antennas 5

Three, the

4th end

50,51 the 3rd Departments of Radiation 52

The 4th Department of Radiation 53 the 5th Department of Radiation 54

The 6th Department of Radiation 55 the 7th Department of Radiation 56

The 8th Department of Radiation 57 second load points 6

Second grounding parts, 7 second match circuits 8

Notebook computer 9 screen back 90

Screen front 91 first, second leads 92,93

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, below especially exemplified by embodiment and cooperate the graphic detailed explanation of giving.

See also Fig. 1, integrated multi-frequency antenna of the present utility model 100 is made of metal material, for example make, be printed on the circuit board or form, comprise a multifrequency antenna 1 and establish one placing the contiguous place of multifrequency antenna 1 and keeping the Wi-Fi antenna 5 of a distance with multifrequency antenna 1 with other metal with the metal sheet punching press.

In the utility model, multifrequency antenna 1 is a unipole antenna.Multifrequency antenna 1 definition has the two relative first long limit, 10, second long limit 11 and two relative first end 12, the second ends 13, be provided with a slotted eye 14 in the middle of the multifrequency antenna 1, slotted eye 14 comprises that opening is located at the peristomes 140 at place in the middle of the long limit 11 of multifrequency antenna 1 second and extends the extension 141 of the blind end of peristome 140, in the utility model preferred embodiment, extension 141 is extended towards the second end 13 of multifrequency antenna 1 by the blind end of peristome 140, and the length of peristome 140 is less than the length of extension 141.Multifrequency antenna 1 forms first Department of Radiation 15 of an adjoining peristome 140 and extension 141 by the long limit 11 of being arranged on of slotted eye 14, first end 12 in multifrequency antenna 1 extends one second Department of Radiation 16, in the preferred embodiment of this utility model, second Department of Radiation 16 extends the end on long limit 10 of multifrequency antenna 1 and vertical mutually with multifrequency antenna 1.

Feeding portion 17 is connected with multifrequency antenna 1, is arranged at the contiguous place of the peristome 140 of slotted eye 14, is provided with first load point 2 in the free end of first feeding portion 17.Contiguous place in feeding portion 17 is provided with first grounding parts 3.In addition, one first match circuit 4 is arranged in the middle of feeding portion 17 and first grounding parts 3 and is connected the feeding portion 17 and first grounding parts 3 respectively, and in the utility model preferred embodiment, first match circuit 4 is a π shape circuit.

Please continue to consult Fig. 1, Wi-Fi antenna 5 is similarly a unipole antenna, and is roughly formed by elongate body bending and have one the 3rd end 50 and one the 4th end 51.Wi-Fi antenna 5 comprises that one roughly becomes the 3rd Department of Radiation 52 of rectangle, the 4th Department of Radiation 53 that has the 4th end 51 in an end vertical extent one of the 3rd Department of Radiation 52, in the 3rd Department of Radiation 52 other end vertical extent the 5th Department of Radiation 54 is arranged, in the utility model, the 4th Department of Radiation 53 and the 5th Department of Radiation 54 extend respectively in the opposite direction.Free end vertical extent in the 5th Department of Radiation 54 has the 6th Department of Radiation 55, the 7th Department of Radiation 56 that is oppositely arranged in the free end vertical extent one and the 5th extension 54 of the 6th Department of Radiation 55, the 8th Department of Radiation 57 that has the 3rd end 50 and be oppositely arranged in the free end vertical extent one of the 7th Department of Radiation 56 with the 3rd Department of Radiation 52.

In the utility model preferred embodiment, the 5th Department of Radiation 54 of Wi-Fi antenna 5 is oppositely arranged with the first end 12 of multifrequency antenna 1, four, the 5th, the 6th, the 7th and the 8th Department of Radiation 53,54,55,56,57 has roughly the same width, and the width of the 3rd Department of Radiation 52 is all greater than the width of the 4th, the 5th, the 6th, the 7th and the 8th Department of Radiation 53,54,55,56,57.Distance in the middle of distance in the middle of the 5th Department of Radiation 54 and the 7th Department of Radiation 56 and the 3rd Department of Radiation 52 and the 8th Department of Radiation 57 about equally.Be provided with second load point 6 in the 6th Department of Radiation 55 and the 7th Department of Radiation 56 junctions, one second grounding parts 7 is arranged at second load point, 6 contiguous places, one second match circuit 8 connects second load point 6 and second grounding parts 7 respectively, in the utility model preferred embodiment, second match circuit 8 is a π shape circuit.

See also Fig. 2 and Fig. 3, the utility model integrated multi-frequency antenna 100 is suitable for being installed in the portable electric device, in the preferred embodiment of the present utility model, portable electric device is a notebook computer 9, and multifrequency antenna 1 and Wi-Fi antenna 5 cooperate the mechanism design bending of notebook computer 9 to be attached in the mechanism of notebook computer 9.In the present embodiment, for avoiding the signal phase mutual interference of multifrequency antenna 1 and Wi-Fi antenna 5, so screen back 90, the second load points 6 that first load point 2 is located at notebook computer 9 then are located at the screen front 91 of notebook computer 9.First grounding parts 3 and second grounding parts 7 form with the metal shell (not shown) of notebook computer 9 respectively and electrically connect.Notebook computer 9 also is connected second load point 6 of Wi-Fi antenna 5 and second lead, the 93 transmitting-receiving electromagnetic riveting machine signals of second grounding parts 7 through first load point 2 that connects multifrequency antenna 1 respectively with first lead 92 and of first grounding parts 3.

When the utility model integrated multi-frequency antenna 100 is used for wireless telecommunications, by the shape of multifrequency antenna 1, the design of feeding portion 17 coupling positions and the selection of first load point, 2 positions, make multifrequency antenna 1 inspire the high-frequency resonant frequency band that a low-frequency resonance frequency band and that comprises GSM850 and EGSM frequency band comprises DCS1800, PCS1900 and W-CDMA2100 frequency band during electromagnetic wave in transmitting-receiving.And the electrical equipment length from 11 junctions, long limit of feeding portion 17 and multifrequency antenna 1 to second Department of Radiation 16 just is the quarter-wave of the high-frequency resonant frequency band of multifrequency antenna 1, just is the quarter-wave of the low-frequency resonance frequency band of multifrequency antenna 1 from 11 junctions, long limit of feeding portion 17 and multifrequency antenna 1 to the electrical length of first end 13 and the electrical length summation of first Department of Radiation 15.

The frequency range scope of the shaped design may command low-frequency resonance frequency band by slotted eye 14, and produce the high-frequency harmonic that a part is overlapped in the high-frequency resonant frequency band, the whole high frequency band width of integrated multi-frequency antenna 100 is increased, and promote the yield value of the whole high frequency band of integrated multi-frequency antenna 100.In addition, see through the shaped design of Wi-Fi antenna 5 and the selection of second load point, 6 positions, make Wi-Fi antenna 5 can receive and dispatch the electromagnetic riveting machine signal of 2.4GHz and 5.2GHz.From the electrical equipment length of second load point, 6 to the 3rd ends 50 just is the quarter-wave of 5.2GHz, just is the quarter-wave of 2.4GHz from the electrical equipment length of second load point, 6 to the 4th ends 51.

Via after the above-mentioned explanation as can be known, the integrated multifrequency antenna 100 of the utility model makes multifrequency antenna 1 can receive and dispatch two than the GSM850 of low frequency and DCS1800, PCS1900 and the W-CDMA2100 frequency band of EGSM frequency band and three higher-frequency by shape, the design of feeding portion 17 coupling positions and the selection of first load point, 2 positions of multifrequency antenna 1.And, make Wi-Fi antenna 5 can receive and dispatch the electromagnetic riveting machine signal of 2.4GHz and 5.2GHz by the shaped design of Wi-Fi antenna 5 and the selection of second load point, 6 positions.

Claims

1. An integrated multi-frequency antenna has a multi-frequency antenna and a Wi-Fi antenna, and the multi-frequency antenna defines two opposite first long sides and second long sides and two opposite first ends and the second long side Two ends, including:

A slot having an opening located in the middle of the second long side of the multi-frequency antenna and an extension extending from the closed end of the opening to the second end, and the length of the extension is greater than the length of the opening;

A first radiating part is formed on the second long side of the multi-frequency antenna and adjacent to the opening part and the extension part through the arrangement of the slot hole;

a second radiating portion, disposed at the first end portion and extending outward from the first long side;

a feed-in portion extending adjacent to the opening of the slot and at a relatively short distance from the first end;

a first feed-in point, arranged at the free end of the feed-in portion;

a first grounding portion, disposed adjacent to the feed-in portion;

It is characterized in that: the above-mentioned Wi-Fi antenna is set near the multi-frequency antenna and keeps a distance from the multi-frequency antenna. The Wi-Fi antenna is roughly a long strip with multiple bends, and defines a third end and a A fourth end, comprising:

a second feed point at a closer distance from the third end; and

A second grounding portion is arranged adjacent to the second feeding point.

2. The integrated multi-frequency antenna according to claim 1, characterized in that: said Wi-Fi antenna comprises:

- the third radiation section;

A fourth radiating portion with a fourth end portion and a fifth radiating portion respectively extend perpendicularly to opposite ends of the third radiating portion;

a seventh radiating part connected to the fifth radiating part through a sixth radiating part;

- a sixth radiating portion extending vertically from one end of the fifth radiating portion;

A seventh radiating portion extending vertically from the free end of the sixth radiating portion and parallel to the fifth radiating portion; and

An eighth radiating part, having a third end and extending vertically to the free end of the seventh radiating part and opposite to the third radiating part, the second feeding point is set at the junction of the sixth radiating part and the seventh radiating part , the above-mentioned second grounding portion is disposed adjacent to the second feeding point.

3. The integrated multi-frequency antenna according to claim 2, wherein the first end of the multi-frequency antenna is opposite to the fifth radiating part of the Wi-Fi antenna.

4. The integrated multi-frequency antenna according to claim 1, characterized in that: it also includes a first matching circuit and a second matching circuit, respectively connecting the feeding part and the first grounding part and the second feeding point and the second feeding point Second ground.

5. The integrated multi-frequency antenna according to claim 1, characterized in that: the integrated multi-frequency antenna is set in a notebook computer, and the first feed-in point and the second feed-in point are respectively set in the notebook computer On different sides of the computer, the first grounding part and the second grounding part are electrically connected to the metal casing of the notebook computer, and the notebook computer connects the first feed-in point with the first grounding part and the second feed-in point respectively. The point and the wire of the second grounding part send and receive electromagnetic signals.

6. A dual-frequency antenna, which is roughly formed by bending a strip body, defines a third end and a fourth end, and is characterized in that: the dual-frequency antenna includes:

- the third radiation section;

a seventh radiating part connected to the fifth radiating part through a sixth radiating part, and the seventh radiating part is arranged opposite to the fifth radiating part;

An eighth radiating portion with a third end extending vertically from the free end of the seventh radiating portion and opposite to the third radiating portion; and

A second feeding point is arranged at the junction of the sixth radiating part and the seventh radiating part.

7. The dual-band antenna according to claim 6, characterized in that: it also includes a second grounding portion arranged adjacent to the second feeding point, and a second matching circuit connected to the second feeding point and second ground.

8. The dual-band antenna according to claim 6, wherein the third radiating portion has the largest width, and the fourth, fifth, sixth, seventh and eighth radiating portions have approximately the same width .