CN100438208C

CN100438208C - Metallic conductor for super wide band mobile terminal antenna

Info

Publication number: CN100438208C
Application number: CNB200410045762XA
Authority: CN
Inventors: 李映红; 于伟; 李文
Original assignee: SANLI COMMUNICATION DESIGN CO Ltd
Current assignee: SANLI COMMUNICATION DESIGN CO Ltd
Priority date: 2004-05-27
Filing date: 2004-05-27
Publication date: 2008-11-26
Anticipated expiration: 2024-05-27
Also published as: CN1705160A

Abstract

The present invention relates to a metal conductor for mobile terminal antennae with super wide frequency bands, and comprises a radiator branch 1 and a radiator branch 2. Each radiator branch can be a straight line, a circle line, a broken line, a saw-tooth line or the combination of the straight line, the circle line, the broken line and the saw-tooth line; the two radiator branches are fed at the same point, and take the feeding point as a demarcation point; each radiator branch also comprises at least one partial loop; the two radiator branches are short-circuited by at least one metal compensation sheet of which the quantity and the position are determined by mobile terminals with different models and structures; shapes, lengths, widths and intervals of all radiator branch lines can be same and can also be different. The fine matching of a mobile terminal from GSM to PCS can be realized by adjusting the shape and the size of each conductor branch, the mutual positions among all conductor branches, and the quantity and the position of the metal compensation sheet and the partial loop.

Description

Extremely wide frequency band portable terminal aerial metallic conductor

Technical field

The present invention relates to a kind of metallic conductor of mobile terminal antenna, relate in particular at the good mobile terminal antenna metallic conductor of ultratvide frequency band coupling.

Background technology

Along with the development of mobile communication industry and the increase of the market demand, the demand of portable terminal develops towards the direction of multiband, also just require mobile terminal antenna can be in plural at least frequency range receiving and transmitting signal.Because the restriction of overall dimension, traditional portable terminal external antenna adopts the form of helical antenna (helical wire or time type sheet metal) usually, the frequency response characteristic of the size adjustment antenna by changing a spiral, in the hope of reaching two matched well in the above working frequency range, but actual effect is unsatisfactory.

Summary of the invention

The purpose of this invention is to provide a kind of at GSM800, GSM900, PCS, DCS, the mobile terminal antenna metallic conductor that the ultratvide frequency band of GPS coupling is good.

Mobile terminal antenna metallic conductor of the present invention, adopt two metallic conductor branches as antenna radiator, two radiant body branches are passed through at least one patch phase short circuit, and by mutual alignment, the quantity of patch and the adjusting of position between the shape of each conductor branch, size, each conductor branch are realized (comprising GSM800 from GSM800 to PCS, GSM900, PCS, DCS, GPS) the ultratvide frequency band antenna of scope.

Technical scheme of the present invention is: the metallic conductor of described antenna comprises radiant body branch one and radiant body branch two; Each radiant body branch can be straight line, return the combination of molded lines, broken line, jaggies or above-mentioned several forms, and two radiant body branches are at the same point feed, and is separation with the distributing point; Radiant body branch can also comprise at least one minor loop; Two radiant body branches are by at least one patch phase short circuit; Patch can be done as a whole processing with other metal conductor portion, and its quantity and position are determined according to the portable terminal of different model, structure; The shape of each radiant body branch line, length, width and spacing can be identical, also can be different.

The invention has the beneficial effects as follows, at the portable terminal of different model, structure, by shape, length, width and the spacing of regulating two radiant body branches, and the quantity of patch and position, can reach GSM800, GSM900, PCS, the matched well in the DCS, GPS ultrabroad band.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Figure 1 shows that several traditional antenna forms.

Fig. 2 is the embodiment of two kinds of antenna metallic conductors of the present invention.

Fig. 3 is the embodiment of other several antenna metallic conductors of the present invention.

Fig. 4 has provided the minor loop embodiment that comprises of the present invention.

Fig. 5 is the embodiment of the difform radiant body of the present invention branch.

Among the figure: 1-distributing point one, 2-radiant body branch one, 3-radiant body branch two, 4-minor loop, 5-patch.

Embodiment

Fig. 1 has enumerated the version of several traditional antennas and the schematic diagram of wire spiral (returning molded lines).Fig. 1 (a) is a kind of two-band helical antenna; Fig. 1 (b) is the schematic diagram of another kind of helical antenna, except that pitch changes, screw diameter also changes; Fig. 1 (c) is to return the antenna pattern schematic diagram of type metal wire replacement helix.

Fig. 2 has provided the embodiment of two kinds of antenna metallic conductors of the present invention.With distributing point 1 is two metallic conductor branches of starting point, be respectively radiant body branch 1 and radiant body branch 23, the two radiant body branches feed on the distributing point 1 that coexists, be that distributing point 1 is the separation of two branches, except that distributing point 1, by at least one patch 5 phase short circuit, radiant body branch 23 shown in Fig. 2 (a) is common time molded lines between two radiant body branches, and radiant body branch shown in Fig. 2 (b) 23 is for comprising the molded lines that returns of minor loop.

The shape of metallic conductor, structure need be complementary with the portable terminal of different model, structure, by shape, length, width and the spacing of regulating two radiant body branches, and the quantity of patch and position, can reach GSM800, GSM900, PCS, the matched well in the DCS, GPS ultrabroad band.Fig. 3 has provided several versions with Fig. 2 equivalence, all is specific embodiments of the invention.

Radiant body branch one 2 L-shaped broken lines (Fig. 3 (a)), when distributing point was positioned at the broken line high order end, branch 1 was Shu shape straight line (Fig. 3 (c)); Radiant body branch 1 from distributing point 1 initial wide to terminal principal vertical line can be equal (Fig. 3 (a), Fig. 3 (c), Fig. 3 (d)), also can be unequal (Fig. 3 (b)).

Radiant body branch 23 is horizontal rising and returns molded lines, returns molded lines live width, spacing, horizontal line length, vertical line length and return the molded lines total length all can to change according to the requirement of different mobile terminal.Horizontal line length can equate that (Fig. 3 (b), Fig. 3 (d)) can not wait (Fig. 3 (a), Fig. 3 (c)) yet; Radiant body branch 23 is initial from distributing point 1 only can be to wait width (Fig. 3 (b), Fig. 3 (c)) to end, also can be (Fig. 3 (a), the Fig. 3 (d)) that does not wait width; Horizontal spacing can equate (Fig. 3 (b)), also can unequal (Fig. 3 (a), Fig. 3 (c), Fig. 3 (d)); The effective depth of two radiant body branches can equate (Fig. 3 (b), Fig. 3 (c)), also can not wait (Fig. 3 (a), Fig. 3 (d)).

The live width of radiant body branch 1 and radiant body branch 23 can identical (Fig. 2) according to the requirement of different mobile terminal, also can different (Fig. 3).

Distributing point 1 is the joinings of two radiant body branches at base level line segment (a nethermost horizontal line section among the figure), when distributing point 1 is positioned at the high order end of base level line segment, radiant body branch one becomes Shu shape straight line (Fig. 3 (c)) by L (Fig. 3 (a), Fig. 3 (b), Fig. 3 (d)) shape broken line; When distributing point 1 was positioned at the low order end of base level line segment, the base level line segment of radiant body branch two shortened to zero (Fig. 3 (d)).

Radiant body branch 23 can be that (Fig. 2 (a) Fig. 3), also can be time molded lines (Fig. 2 (b) that comprises minor loop to the common molded lines that returns, Fig. 4), at different mobile terminal antennas,, can play the effect of auxiliary adjustment antenna performance by to the position of minor loop, the adjusting of quantity.

Except that distributing point, two radiant body branches 2 link to each other by at least one patch 5 with 3, the position of patch 5 can be positioned at top, the middle part of conductor, the optional position of bottom according to the requirement of the portable terminal that matches, and its quantity and size are determined according to the needs of the portable terminal that matches.Patch 5 can be done as a whole machine-shaping with other metal conductor portion.

As shown in Figure 5, each radiant body branch can be straight line, the combination of returning molded lines, broken line, jaggies or above-mentioned several forms.

The present invention both can be used for built-in antenna, also can be used for the external antenna.

The form of metallic conductor shown in the above-mentioned figure is preferred specific embodiments more of the present invention; but the present invention is not limited to this several embodiment; all simple equivalences of doing according to claim scope of the present invention and summary of the invention change and modify, and all should belong within the scope of patent protection of the present invention.

Claims

1. the antenna metallic conductor of a portable terminal, comprise two branched structures: radiant body branch one and radiant body branch two, these two radiant body branches are connected at the distributing point place, extending respectively becomes a suitably antenna conductor of size, it is characterized in that two radiant bodies are by at least one patch phase short circuit.

2. the antenna metallic conductor of portable terminal as claimed in claim 1 is characterized in that, described each radiant body branch is straight line, the combination of returning molded lines, broken line, jaggies or above-mentioned several forms.

3. the antenna metallic conductor of portable terminal as claimed in claim 2, it is characterized in that, described radiant body branch one is Shu shape straight line, and described radiant body branch two is horizontal rising and returns molded lines, and the distributing point in radiant body branch one lower end is connected with radiant body branch one.

4. the antenna metallic conductor of portable terminal as claimed in claim 2, it is characterized in that, described radiant body branch one L-shaped broken line, described radiant body branch two is horizontal rising and returns molded lines, is connected with radiant body branch one at the distributing point of radiant body branch one L shaped line right-hand member.

5. the antenna metallic conductor of portable terminal as claimed in claim 2 is characterized in that, the width of described each radiant body branch line equates.

6. the antenna metallic conductor of portable terminal as claimed in claim 2 is characterized in that, described each radiant body branch line has at least the width of one section width and other parts unequal.

7. the antenna metallic conductor of portable terminal as claimed in claim 2 is characterized in that, the spacing between described each radiant body branch line equates or do not wait.

8. the antenna metallic conductor of portable terminal as claimed in claim 2 is characterized in that, the horizontal length of described each radiant body branch line equates or do not wait.

9. the antenna metallic conductor of portable terminal as claimed in claim 2 is characterized in that, the effective depth of described two radiant body branches equates or do not wait.

10. the antenna metallic conductor of portable terminal as claimed in claim 2 is characterized in that, described radiant body branch comprises at least one minor loop.

11. the antenna metallic conductor as claim 3 or 4 described portable terminals is characterized in that, described radiant body branch two comprises at least one minor loop.

12. the antenna metallic conductor as claim 2 or 3 or 4 described portable terminals is characterized in that, described patch and other metal conductor portion structure that is formed in one.