CN210245725U - Micro-slit coupling antenna - Google Patents

Micro-slit coupling antenna Download PDF

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Publication number
CN210245725U
CN210245725U CN201921291152.6U CN201921291152U CN210245725U CN 210245725 U CN210245725 U CN 210245725U CN 201921291152 U CN201921291152 U CN 201921291152U CN 210245725 U CN210245725 U CN 210245725U
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China
Prior art keywords
gap
micro
antenna
slot
feed point
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CN201921291152.6U
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Chinese (zh)
Inventor
Yuan Li
李源
Rong Fu
付荣
Xiange Yang
杨先歌
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Lanto Electronic Ltd
Kunshan Liantao Electronics Co Ltd
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Lanto Electronic Ltd
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Abstract

A micro-gap coupling antenna comprises a metal shell, a micro gap penetrating through the metal shell, a printed circuit board and a mainboard accommodated in the metal shell, an antenna feed point and an antenna feed point arranged on the printed circuit board, and a signal transmission line electrically connected between the antenna feed point and the mainboard, wherein the micro gap penetrates through a first side wall of the metal shell, the antenna feed point and the antenna feed point are positioned on a first side face, facing the first side wall, of the printed circuit board, the micro gap comprises a first gap, a second gap and a third gap, the first gap and the second gap are arranged at intervals, the third gap is communicated with the first gap and the second gap, and at least part of wiring of the signal transmission line is positioned between the first gap and the second gap and is coupled with the micro gap.

Description

Micro-slit coupling antenna
Technical Field
The utility model relates to a micro-slit coupling antenna belongs to communication technology field.
Background
At present, in mobile terminals, the design of the metal shell adopted by more and more mobile devices improves the excellent hand feeling of users, improves the structural strength and achieves the purposes of miniaturization and lightness of the whole mobile terminal.
When the metal shell is used, if the antenna adopts a common IFA G-shaped wiring, the antenna can not radiate under the environment of a complete machine closed loop formed by the full metal shell. In order to meet the radiation of the antenna, a gap can be formed in a local area of the metal shell corresponding to the antenna, and then the gap is filled with plastic, so that although the basic antenna performance requirements can be met, the attractiveness of the whole structure is affected, the strength of the whole machine is reduced, the continuity of the whole machine is damaged, and the processing difficulty is improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a slit coupling antenna that intensity is high, pleasing to the eye and excellent performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a micro-gap coupling antenna comprises a metal shell, a micro gap penetrating through the metal shell, a printed circuit board and a mainboard accommodated in the metal shell, an antenna feed point and an antenna feed point arranged on the printed circuit board, and a signal transmission line electrically connected between the antenna feed point and the mainboard, wherein the micro gap penetrates through a first side wall of the metal shell, the antenna feed point and the antenna feed point are positioned on a first side face, facing the first side wall, of the printed circuit board, the micro gap comprises a first gap, a second gap and a third gap, the first gap and the second gap are arranged at intervals, the third gap is communicated with the first gap and the second gap, and at least part of wiring of the signal transmission line is positioned between the first gap and the second gap and is coupled with the micro gap.
Further, on the first side face, the antenna feed point at least partially coincides with a projection of the first slot, and the antenna feed point at least partially overlaps with a projection of the second slot.
Further, the first slit and the second slit extend in a first direction, and the third slit extends in a second direction perpendicular to the first direction.
Further, the micro gap is H-shaped.
Further, the first side of the printed circuit board has a dimension of 100MM in the first direction and a dimension of 12MM in the second direction, the first and second slits have a dimension of 65MM in the first direction and a dimension of 2MM in the second direction, and the third slit has a dimension of 6MM in the second direction.
Further, the micro-slits can be arranged in an E shape, a G shape, a K shape, a B shape, a 6 shape or a Z shape.
Compared with the prior art, the utility model discloses micro-gap coupling antenna is in run through one on the metal casing micro-gap with on the printed circuit board signal transmission line coupling forms the antenna, is not breaking metal casing's continuity, does not reduce metal casing's intensity with do not destroy under the prerequisite of metal casing's aesthetic property, guarantee the good performance of antenna.
Drawings
Fig. 1 is a front view of the micro-slot coupled antenna of the present invention.
Fig. 2 is a rear view of the printed circuit board, the antenna feed point, and the signal transmission line of the micro-slot coupled antenna of the present invention.
Fig. 3 is a schematic perspective view of the micro-slit coupled antenna of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 3, the present invention discloses a micro-gap coupling antenna 100, which includes a metal housing 1, a micro-gap 2 penetrating through the metal housing 1, a printed circuit board 3 accommodated in the metal housing 1, an antenna feeding point 4 and an antenna feeding point 5 disposed on the printed circuit board 3, a main board 6 disposed in the metal housing 1, and a signal transmission line 7 electrically connected between the antenna feeding point 4 and the main board 6. The metal shell 1 and the printed circuit board 3 form an antenna environment, and the antenna feed point 4, the antenna feed point 5, the signal transmission line 7 and the micro slot 2 form an antenna.
Referring to fig. 1, the left-right direction in fig. 1 is defined as the left-right direction, the up-down direction is defined as the up-down direction, and the direction perpendicular to the paper surface is defined as the front-back direction. In the following description, upper, lower, left, right, front, and rear are used to describe the positional relationship between the relevant elements, so that the explanation for describing the positional relationship of one element with another element becomes simple, but the description in these orientations does not have any limiting meaning to the technique itself. The terms "first," "second," "third," and the like may be used herein to describe various elements, but these elements are not limited by these terms, which are used merely to distinguish the described objects, not in any sequential or technical sense.
Referring to fig. 3, the first side wall of the metal housing 1 through which the micro-slot 2 penetrates, the antenna feeding point 4 and the antenna feeding point 5 are located on a first side surface of the printed circuit board 3 facing the first side wall and are arranged at intervals in the up-down direction, the antenna feeding point 4 is located at the upper side of the antenna feeding point 5, the first side wall of the metal shell 1 through which the micro-slot 2 penetrates is located at the same side as the first side wall, the antenna feed point 4 and the antenna feed point 5 are at least partially overlapped with the micro-slot 2 in the left-right direction and the up-down direction, namely, the antenna feed point 4 and the antenna feed ground point 5 at least partially overlap with the projection of the micro slot 2 on the first side surface, so that the trace of the signal transmission line 7 is at least partially located between the micro slots 2.
Referring to fig. 1, the micro slot 2 includes a first slot 21, a second slot 22 extending in a left-right direction and spaced apart from each other in a top-bottom direction, and a third slot 23 extending in the top-bottom direction and communicating the first slot 21 and the second slot 22, the first slot 21, the second slot 22, and the third slot 23 have uniform widths, when viewed from front to back, the micro slot 2 is in an H shape horizontally disposed, the antenna feeding point 4 at least partially overlaps the first slot 21, the antenna feeding point 5 at least partially overlaps the second slot 22, in other words, on the first side surface, the antenna feeding point 4 at least partially overlaps the projection of the first slot 21, and the antenna feeding point 5 at least partially overlaps the projection of the second slot 22, so that at least a portion of the signal transmission line 7 is located between the first slot 21 and the second slot 22 and is connected to the micro slot 21 The slot 2 is coupled, and the coupled micro slot 2 has an antenna function, can cover communication frequency bands of 2.4-2.5 Ghz and 5Ghz-6Ghz, and has excellent antenna performance.
In this embodiment, the first side surface of the printed circuit board 3 has a dimension of 100MM in the left-right direction and a dimension of 12MM in the up-down direction, the first slit 21 and the second slit 22 of the metal case 1 have a dimension of 65MM in the left-right direction and a dimension of 2MM in the up-down direction, and the third slit 23 has a dimension of 6MM in the up-down direction.
In other embodiments, the micro slot 2 may be configured in an "E" shape, a "G" shape, a "K" shape, a "B" shape, a "6" shape, a "Z" shape, etc., and the first slot 21 and the second slot 22 may not overlap with the antenna feeding point 4 and the antenna feeding point 5, as long as the trace of the signal transmission line 7 is at least partially located between the first slot 21 and the second slot 22 of the micro slot 2, and the dimensions of the first slot 21 and the second slot 22 in the left-right direction depend on the antenna frequency, and the lower the frequency, the longer the required slot length, the higher the frequency, and the shorter the required slot length.
The utility model discloses micro-gap coupling antenna 100 is in run through one on metal casing 1 micro-gap 2 with on the printed circuit board 3 signal transmission line 7 coupling forms the antenna, is not breaking metal casing 1's continuity, does not reduce metal casing 1's intensity with do not destroy under the prerequisite of metal casing 1's aesthetic property, guarantee the good performance of antenna.
The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims (6)

1. A micro-slot coupled antenna (100), characterized by: including metal casing (1), run through miniature gap (2) of metal casing (1), hold in printed circuit board (3) and mainboard (6) in metal casing (1), set up antenna feed point (4) and antenna feed place (5) on printed circuit board (3) and electric connection in antenna feed point (4) with signal transmission line (7) between mainboard (6), miniature gap (2) run through the first lateral wall of metal casing (1), antenna feed point (4) and antenna feed place (5) are located towards of printed circuit board (3) on the first side of first lateral wall, miniature gap (2) are including first gap (21), second gap (22) that the interval set up and communicate first gap (21) with third gap (23) of second gap (22), the trace of the signal transmission line (7) is at least partially positioned between the first gap (21) and the second gap (22) to be coupled with the micro-gap (2).
2. The micro-slot coupled antenna (100) of claim 1, wherein: on the first side, the antenna feed point (4) at least partially coincides with the projection of the first slot (21), and the antenna feed point (5) at least partially overlaps with the projection of the second slot (22).
3. The micro-slot coupled antenna (100) of claim 1, wherein: the first slit (21) and the second slit (22) extend in a first direction, and the third slit (23) extends in a second direction perpendicular to the first direction.
4. The micro-slot coupled antenna (100) of claim 3, wherein: the micro gap (2) is H-shaped.
5. The micro-slot coupled antenna (100) of claim 4, wherein: the first side of the printed circuit board (3) has a dimension of 100MM in the first direction and a dimension of 12MM in the second direction, the first gap (21) and the second gap (22) have a dimension of 65MM in the first direction and a dimension of 2MM in the second direction, and the third gap (23) has a dimension of 6MM in the second direction.
6. The micro-slot coupled antenna (100) of claim 2, wherein: the micro-gap (2) can also be arranged in an E shape, a G shape, a K shape, a B shape, a 6 shape or a Z shape.
CN201921291152.6U 2019-08-11 2019-08-11 Micro-slit coupling antenna Active CN210245725U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921291152.6U CN210245725U (en) 2019-08-11 2019-08-11 Micro-slit coupling antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921291152.6U CN210245725U (en) 2019-08-11 2019-08-11 Micro-slit coupling antenna

Publications (1)

Publication Number Publication Date
CN210245725U true CN210245725U (en) 2020-04-03

Family

ID=69963759

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921291152.6U Active CN210245725U (en) 2019-08-11 2019-08-11 Micro-slit coupling antenna

Country Status (1)

Country Link
CN (1) CN210245725U (en)

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