Built-in full-frequency antenna and MIFI equipment

Abstract

The utility model provides a built-in full-frequency antenna and MIFI equipment, the built-in full-frequency antenna comprises an FPC board of which the front side is provided with a copper foil, the copper foil is provided with an ultrahigh frequency control line, a medium-high frequency control line and a low frequency control line connected with the medium-high frequency control line, the copper foil is provided with a first ground feed point, an RF feed point and a second ground feed point side by side, and the first ground feed point, the RF feed point and the second ground feed point are connected with the FPC board. The first ground feed point is arranged at the end part of the ultrahigh frequency control line, and the RF feed point and the second ground feed point are arranged on the medium-high frequency control line. The beneficial effects of the utility model are that: 1, the built-in full-frequency antenna provided by the utility model solves the problems of limited space and insufficient bandwidth of miniaturized equipment; and 2, all parts of the built-in full-frequency antenna can be mutually coupled to form resonant frequencies of some frequency bands, and the bandwidth can be properly adjusted and supplemented through the resonant frequencies.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna technical field especially relates to a built-in full frequency antenna and MIFI equipment. BACKGROUND

[0002] At present, the antenna applied to MIFI, smart phone, wearable device and other miniaturized devices often faces the problem of insufficient bandwidth due to the limited internal space of the device. The antenna of these miniaturized devices can usually only support a relatively narrow frequency range, and it is difficult to cover multiple frequency bands or a wider frequency range. For example, the traditional antenna can only support a single frequency band (such as 4G LTE), and cannot simultaneously cover 5G, WiFi, Bluetooth and other communication frequency bands. This insufficient bandwidth limits the communication capability and compatibility of miniaturized devices, and it is difficult to meet the demand of modern communication technology for multi-band or full-band support. SUMMARY

[0003] In order to solve the problem of insufficient bandwidth of miniaturized devices due to limited space in the prior art, the utility model provides a built-in full frequency antenna, which comprises an FPC board provided with a copper foil on the front, the copper foil is provided with an ultra-high frequency control line, a medium-high frequency control line and a low frequency control line connected with the medium-high frequency control line, the copper foil is provided with a first ground feed point, an RF feed point and a second ground feed point arranged side by side, the first ground feed point is arranged at the end of the ultra-high frequency control line, and the RF feed point and the second ground feed point are arranged on the medium-high frequency control line.

[0004] As a further improvement of the utility model, the medium-high frequency control line comprises a main branch, and a first branch and a second branch extending from one side of the main branch, a spacing area is arranged between the first branch and the second branch, and the spacing area is used to control the bandwidth of the low frequency band.

[0005] As a further improvement of the utility model, the second branch extends a third branch on one side, and the third branch is used to supplement the insufficient part of the resonance frequency in the medium-high frequency and ultra-high frequency bands.

[0006] As a further improvement of the utility model, a cut corner is arranged at the connection between the main branch and the first branch.

[0007] As a further improvement of the utility model, the first ground feed point and the second ground feed point are symmetrically distributed on both sides of the RF feed point and maintain a spacing space with the RF feed point.

[0008] As a further improvement of the utility model, the RF feed point and the second ground feed point are respectively arranged at the end of the first branch and the second branch.

[0009] As a further improvement of the utility model, the ultra-high frequency control line is L-shaped.

[0010] As a further improvement of the utility model, the built-in full-frequency antenna further comprises a back adhesive installed on the back adhesive area of the back of the FPC board.

[0011] As a further improvement of the utility model, the FPC board is a single-sided board.

[0012] As a further improvement of the utility model, the resonance frequency range of the ultra-high frequency control line is 2300MHz-5000MHz, the resonance frequency range of the medium-high frequency control line is 1700MHz-2700MHz, and the resonance frequency range of the low frequency control line is 600MHz-960MHz.

[0013] The utility model also discloses a MIFI device, and the MIFI device comprises the built-in full-frequency antenna of the utility model.

[0014] The utility model has the advantages of: 1. the built-in full-frequency antenna of the utility model solves the problem of limited space and insufficient bandwidth of small-sized equipment, 2. the built-in full-frequency antenna of the utility model can be coupled with each other to form some resonance frequencies of frequency bands, and the bandwidth problem can be adjusted and supplemented through the resonance frequencies, 3. the full-frequency antenna of the utility model can simultaneously cover 4G, 5G, WiFi, Bluetooth and other communication frequency bands. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the built-in full-frequency antenna structure diagram of the utility model,

[0016] Reference Signs:

[0017] 1-FPC board, 2-copper foil, 3-first ground feed point, 4-RF feed point, 5-second ground feed point, 6-ultra-high frequency control line, 7-medium-high frequency control line, 70-main branch, 71-first branch, 72-second branch, 73-third branch, 8-low frequency control line, 9-interval area, 10-cut angle. DETAILED DESCRIPTION

[0018] As Figure 1The utility model discloses a built-in full frequency antenna, including FPC board 1, FPC board 1 front is equipped with copper foil 2, is equipped with superhigh frequency control line 6, medium high frequency control line 7 and low frequency control line 8 that links to each other with medium high frequency control line 7 on copper foil 2, superhigh frequency control line 6 is mainly used for adjusting the resonant frequency of superhigh frequency band, and the working range is 2300MHz-5000MHz, medium high frequency control line 7 is mainly used for adjusting the resonant frequency of medium high frequency band, and the working range is 1700MHz-2700MHz, low frequency control line 8 is mainly used for adjusting the resonant frequency of low frequency band, and the working range is 600MHz-960MHz, and copper foil 2 is provided with first ground feed point 3, RF feed point 4, second ground feed point 5 side by side, and first ground feed point 3 is arranged at the end of superhigh frequency control line 6, and RF feed point 4, second ground feed 5 are arranged on medium high frequency control line 7, second ground feed point 5, RF feed point 4 form loop structure through electrical connection, are used for optimizing current distribution and impedance matching, and first feed point 3 is the coupling arm.

[0019] Medium high frequency control line 7 includes main branch 70 and first branch 71 and second branch 72 extending from one side of main branch 70, and interval area 9 is arranged between first branch 71 and second branch 72, and the built-in full frequency antenna adjusts the bandwidth of low frequency band through interval area 9, and the working frequency range is 600-960MHz.

[0020] Third branch 73 extends from one side of second branch 72, and third branch 73 is used to supplement the insufficient part of resonant frequency in medium high frequency and superhigh frequency band, and specifically for 2300-5000MHz band, and the role is to optimize the resonant characteristics of antenna in these frequency ranges, and to make up for performance defects.

[0021] The connecting place of main branch 70 and first branch 71 is equipped with cut angle 10, and the working bandwidth of antenna can be expanded through the cut angle design.

[0022] First ground feed point 3 and second ground feed point 5 are symmetrically distributed on the two sides of RF feed point 4 and keep a certain interval space with RF feed point 4.

[0023] RF feed point 4 and second ground feed 5 are arranged at the end of first branch 71 and second branch 72 respectively.

[0024] Superhigh frequency control line 6 is L-shaped.

[0025] The built-in full frequency antenna further includes back glue, and the back glue adopts 3M 9471 double-sided adhesive tape, and the back glue is installed in the back glue area on the back of FPC board 1.

[0026] FPC board 1 is a single-sided board.

[0027] The utility model discloses still a kind of MIFI equipment, the MIFI equipment includes the built-in full-frequency antenna of the utility model.

[0028] The utility model discloses a kind of built-in full-frequency antennas, some frequency bands of resonance are also coupled out between each part, bandwidth problem can be appropriately adjusted by these resonance frequencies.Simultaneously the built-in full-frequency antenna of the utility model is by using pure FPC structure, the broadband problem of MIFI antenna is solved.

[0029] The above content is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions.For ordinary skilled person in the art to which the utility model belongs, on the premise of not departing from the concept of the utility model, a number of simple deductions or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims

1. A built-in full frequency antenna, characterized by: The FPC board (1) is provided with a copper foil (2) on the front side, the copper foil (2) is provided with an ultra-high frequency control line (6), a medium-high frequency control line (7), and a low frequency control line (8) connected with the medium-high frequency control line (7), the copper foil (2) is provided with a first ground feed point (3), an RF feed point (4), and a second ground feed point (5) side by side, the first ground feed point (3) is arranged at the end of the ultra-high frequency control line (6), and the RF feed point (4) and the second ground feed point (5) are arranged on the medium-high frequency control line (7).

2. The internal full-range antenna of claim 1, wherein: The medium-high frequency control line (7) includes a main branch (70), a first branch (71) and a second branch (72) extending from one side of the main branch (70), and a spacing area (9) is arranged between the first branch (71) and the second branch (72), which is used to control the bandwidth of the low frequency band.

3. The internal full-range antenna of claim 2, wherein: The second branch (72) extends a third branch (73) on one side, and the third branch (73) is used to supplement the insufficient part of the resonance frequency in the medium-high frequency and ultra-high frequency bands.

4. The internal full-range antenna of claim 2, wherein: The main branch (70) is provided with a chamfer (10) at the connection with the first branch (71).

5. The internal full-range antenna of claim 1, wherein: The first ground feed point (3) and the second ground feed point (5) are symmetrically distributed on both sides of the RF feed point (4) and maintain a spacing space with the RF feed point (4).

6. The internal full-range antenna of claim 2, wherein: The RF feed point (4) and the second ground feed point (5) are respectively arranged at the end of the first branch (71) and the second branch (72).

7. The internal full-range antenna of claim 1, wherein: The ultra-high frequency control line (6) is L-shaped, and the FPC board (1) is a single-sided board.

8. The internal full-range antenna of claim 1, wherein: The built-in full-frequency antenna further comprises an adhesive, which is installed on the adhesive area on the back of the FPC board (1).

9. The internal full-range antenna of claim 1, wherein: The resonance frequency range of the ultra-high frequency control line (6) is 2300-5000MHz, the resonance frequency range of the medium-high frequency control line (7) is 1700-2700MHz, and the resonance frequency range of the low frequency control line (8) is 600-960MHz.

10. A MIFI device, characterized by: The MIFI device comprises the built-in full-frequency antenna according to any one of claims 1-9. The MIFI device comprises the built-in full-frequency antenna according to any one of claims 1-9.

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