CN212908074U - LTE and WIFI integration antenna - Google Patents
LTE and WIFI integration antenna Download PDFInfo
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- CN212908074U CN212908074U CN202021761235.XU CN202021761235U CN212908074U CN 212908074 U CN212908074 U CN 212908074U CN 202021761235 U CN202021761235 U CN 202021761235U CN 212908074 U CN212908074 U CN 212908074U
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Abstract
The utility model provides a LTE and WIFI integration antenna, include: the middle part of the metal sheet is provided with a rectangular groove; the plastic bracket is embedded in one surface of the rectangular groove and locked on the metal sheet through a screw; the base plate bonds in the plastics support is close to the one side of sheetmetal, the base plate is kept away from the one side of plastics support is provided with first antenna radiating element and second antenna radiating element. Symmetrical left parasitic units and right parasitic units are arranged between the first left half-wave oscillator arm and the first ground feeding surface and between the first right half-wave oscillator arm and the first ground feeding surface, and an LTE antenna is provided; the antenna not only covers the existing commonly-used 4G network, but also covers the 3GPP and the low-frequency WIFI frequency band in the WCDMA, and further provides the WIFI antenna for realizing the coverage of the dual-frequency band.
Description
Technical Field
The utility model relates to an antenna technology field especially relates to a LTE and WIFI integration antenna.
Background
In thatRadio with a radio frequency unitThe dipole antenna in communication is widely applied due to mature research technology, simple structure and excellent performance. A conventional dipole antenna is formed by a pair of symmetrically placed conductors, fed at the center, with a total length of half a wavelength. By controlling the relationship among the current amplitude, the phase and the spatial position of the dipole, the dipole antenna can be widely applied to base station antennas, circularly polarized antennas and MIMO antennas. The current mobile communication terminals tend to be miniaturized and planarized, so the antenna design must be as small as possible while maintaining performance.
Currently, for some large-scale enterprise routing devices including 4G band, the common operating bands are LTE (1710-2690MHz), 3GPP (1920-2170MHz), WIFI (2400-2500MHz) and 5150-5850MHz), which puts increasing demands on the broadband and miniaturization of communication devices, and therefore, the support of the adaptive small-sized broadband antenna is more required. In order to realize a small and wide band, a slotline on an antenna and a non-planar structure are generally used. The slotline approach may introduce unwanted frequencies while achieving the introduction of multiple resonant frequencies. While the non-planar structure can achieve broadband, it increases the size of the antenna. Therefore, it is an urgent need in the wireless communication field to design a dipole antenna with small size and wide band.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in providing a LTE and WIFI integration antenna.
In order to solve the technical problem, the utility model provides a LTE and WIFI integration antenna, include:
the middle part of the metal sheet is provided with a rectangular groove;
the plastic bracket is embedded in one surface of the rectangular groove and locked on the metal sheet through a screw;
the substrate is bonded to one surface, close to the metal sheet, of the plastic support, and a first antenna radiation unit and a second antenna radiation unit are arranged on one surface, far away from the plastic support, of the substrate;
the first antenna radiation unit comprises a first left half-wave oscillator arm, a first right half-wave oscillator arm, a first feeding point arranged between the first left half-wave oscillator arm and the first right half-wave oscillator arm, a first feed surface arranged on the outer side of the first left half-wave oscillator arm and the first right half-wave oscillator arm, a first feed point arranged on the first feed surface, a first coaxial cable connected with the first feed point and the first feed point, and a left parasitic unit symmetrically arranged between the first left half-wave oscillator arm and the first feed surface and a right parasitic unit arranged between the first right half-wave oscillator arm and the first feed surface.
Further, the second antenna radiation unit includes a second feeding ground plane, a second feeding plane disposed outside the second feeding ground plane, a second feeding point disposed on the second feeding plane, and a second coaxial cable connecting the second feeding point and the second feeding point.
Further, the second ground feed surface is located at a side close to the first antenna radiating element.
Further, the left parasitic element and the right parasitic element are symmetrically arranged.
Furthermore, a first positioning hole is formed in one side, away from the second antenna radiating element, of the first antenna radiating element.
Furthermore, a second upper positioning hole and a second lower positioning hole are arranged on the second feeding surface.
Furthermore, the substrate is made of FR4 material.
Furthermore, the plastic support is a cuboid, an accommodating groove is formed in one surface of the plastic support, two mounting lug plates are arranged on two sides of the plastic support respectively, the plastic support is fixed on the metal sheet through screws penetrating through the mounting lug plates, and the substrate is bonded in the accommodating groove through a double-faced adhesive tape.
Further, the left parasitic element and the right parasitic element are symmetrically arranged.
The utility model discloses an LTE and WIFI integrated antenna sets up symmetrical left parasitic unit and right parasitic unit between first left half-wave oscillator arm and first feed ground, between first right half-wave oscillator arm and first feed ground, provides an LTE antenna; the antenna not only covers the existing commonly-used 4G network, but also covers the 3GPP and the low-frequency WIFI frequency band in the WCDMA, and further provides the WIFI antenna for realizing the coverage of the dual-frequency band.
Drawings
Fig. 1 is a structural diagram of the LTE and WIFI integrated antenna of the present invention;
fig. 2 is an exploded view of the LTE and WIFI integrated antenna of the present invention;
fig. 3 is a schematic diagram of a substrate of the LTE and WIFI integrated antenna of the present invention;
fig. 4 is a voltage standing wave ratio diagram of the LTE and WIFI integrated antenna of the present invention within the working frequency band, wherein the working frequency band is 1710-;
fig. 5 is a voltage standing wave ratio diagram of the LTE and WIFI integrated antenna of the present invention within the working frequency band, wherein the working frequency band is 2400-;
FIG. 5 is a voltage standing wave ratio diagram of the LTE and WIFI integrated antenna of the present invention in the working frequency band, and the result shows that the voltage standing wave ratio is less than 2.5 in the whole working frequency band (2400 plus 2500MHz &5150 plus 5850MHz)
Fig. 6 is an isolation diagram of the LTE and WIFI integrated antenna of the present invention within the working frequency band;
labeled as:
the length of the metal sheet 1, the rectangular groove 11,
a plastic bracket 2, a containing groove 21, a mounting lug plate 22,
the double-sided adhesive tape 3 is provided with a double-sided adhesive tape,
the number of the base plates 4 is such that,
a first antenna radiating element 41, a first positioning hole 411, a left parasitic element 412, a first left half-wave dipole arm 413, a first ground feed 414, a first ground feed point 415, a first feed point 416, a first coaxial cable 417, a first right half-wave dipole arm 418, a right parasitic element 419,
a second antenna radiating element 42, a second coaxial cable 421, a second feeding ground 422, a second feeding point 423, a second feeding point 424, a second upper positioning hole 425, a second feeding surface 426, a second lower positioning hole 427,
and a screw 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 6, an LTE and WIFI integrated antenna includes a metal sheet 1, wherein a rectangular groove 11 is formed in the middle of the metal sheet; the plastic bracket 2 is embedded in one surface of the rectangular groove 11 and is locked on the metal sheet 1 through a screw (not marked); the substrate 4 is bonded on one surface, close to the metal sheet 1, of the plastic support 2, and a first antenna radiation unit 41 and a second antenna radiation unit 42 are arranged on one surface, far away from the plastic support 2, of the substrate 4. The middle of the metal sheet 1 is provided with the rectangular groove 11, the plastic support 2 is installed at the rectangular groove 11 in an embedded mode, the plastic support is locked through the screw 5, the substrate 4 is bonded to the plastic support 2, the substrate 4, the plastic support 2 and the metal sheet 1 are assembled and integrated, and the assembled antenna does not occupy the internal space of a terminal and does not affect the overall attractiveness of a product.
The first antenna radiation element 41 includes a first left half-wave dipole arm 413, a first right half-wave dipole arm 418, a first feeding point 416 disposed between the first left half-wave dipole arm 413 and the first right half-wave dipole arm 418, a first ground feeding surface 414 disposed outside the first left half-wave dipole arm 413 and the first right half-wave dipole arm 418, a first ground feeding point 415 disposed on the first ground feeding surface 414, a first coaxial cable 417 connected to the first feeding point 416 and the first ground feeding point 415, a left parasitic element 412 symmetrically disposed between the first left half-wave dipole arm 413 and the first ground feeding surface 414, and a right parasitic element 419 disposed between the first right half-wave dipole arm 413 and the first ground feeding surface 414. The first left-half wave dipole arm 413, the first right-half wave dipole arm 418, the first feeding point 416 and the first feeding point 415 are all copper-clad structures, and the left parasitic element 412 and the right parasitic element 419 are symmetrically arranged with respect to the feeding line of the first coaxial cable 417, so that the resonance bandwidth of the antenna is widened, specifically, the first feeding point 416 of the first antenna radiation element 41 is connected with the signal line of the first coaxial cable 417, and the first feeding point 415 is connected with the ground line of the first coaxial cable 417.
The second antenna radiation element 42 includes a second feeding ground plane 422, a second feeding plane 426 disposed outside the second feeding ground plane 422, a second feeding point 423 disposed on the second feeding ground plane 422, a second feeding point 424 disposed on the second feeding plane 426, and a second coaxial cable 421 connecting the second feeding point 423 and the second feeding point 424. Specifically, the second feeding point 424 of the second antenna radiation unit 42 is connected to a signal line of the second coaxial cable 421, the second feeding point 423 is connected to a ground line of the second coaxial cable 421, a low frequency band (2400-.
The second ground feed surface 422 is located at a side close to the first antenna radiating element 41.
A first positioning hole 411 is formed in one side, away from the second antenna radiation unit 42, of the first antenna radiation unit 41; a second upper positioning hole 425 and a second lower positioning hole 427 are disposed on the second feeding surface 426. The first positioning hole 411, the second upper positioning hole 425 and the second lower positioning hole 427 facilitate the LTE and WIFI integrated antenna to be mounted on a required housing.
The substrate 1 is made of FR4 material, and the front surface of the substrate 1 is completely brushed with ink.
The plastic support 2 is a cuboid, an accommodating groove 21 is formed in one surface of the plastic support, two mounting lug plates 22 are arranged on two sides of the plastic support respectively, the plastic support 2 is fixed on the metal sheet 1 through screws penetrating through the mounting lug plates 22, and the substrate 4 is bonded in the accommodating groove 21 through the double-faced adhesive tape 3. The containing groove 21 is arranged on one surface of the metal boss 1 with the gap to form cavity radiation, so that normal propagation of electromagnetic waves can be ensured.
The utility model discloses an LTE and WIFI integration antenna sets up symmetrical left parasitic unit 412 and right parasitic unit 419 between first left half-wave oscillator arm 413 and first ground 414, between first right half-wave oscillator arm 413 and first ground 414, provides an LTE antenna; the antenna not only covers the existing commonly-used 4G network, but also covers the 3GPP and the low-frequency WIFI frequency band in the WCDMA, and further provides the WIFI antenna for realizing the coverage of the dual-frequency band.
Fig. 4 is a voltage standing wave ratio diagram of the LTE and WIFI integrated antenna of the present invention in the working frequency band, and the result shows that the voltage standing wave ratio is less than 2.5 in the whole working frequency band (1710-;
fig. 5 is a voltage standing wave ratio diagram of the LTE and WIFI integrated antenna of the present invention in the working frequency band, and the result shows that the voltage standing wave ratio is less than 2.5 in the whole working frequency band (2400-;
fig. 6 is the utility model discloses a LTE and WIFI integration antenna isolation map in the working frequency range, the result shows in whole working frequency range (1710 supplyes 2690MHz and 5150 supplyes 5850MHz), and the isolation of two with frequency antennas is superior to-16 dB, broadband dipole antenna also realizes good isolation performance in whole working frequency range.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.
Claims (8)
1. An LTE and WIFI integrated antenna, comprising:
the middle part of the metal sheet is provided with a rectangular groove;
the plastic bracket is embedded in one surface of the rectangular groove and locked on the metal sheet through a screw;
the substrate is bonded to one surface, close to the metal sheet, of the plastic support, and a first antenna radiation unit and a second antenna radiation unit are arranged on one surface, far away from the plastic support, of the substrate;
the first antenna radiation unit comprises a first left half-wave oscillator arm, a first right half-wave oscillator arm, a first feeding point arranged between the first left half-wave oscillator arm and the first right half-wave oscillator arm, a first feed surface arranged on the outer side of the first left half-wave oscillator arm and the first right half-wave oscillator arm, a first feed point arranged on the first feed surface, a first coaxial cable connected with the first feed point and the first feed point, and a left parasitic unit symmetrically arranged between the first left half-wave oscillator arm and the first feed surface and a right parasitic unit arranged between the first right half-wave oscillator arm and the first feed surface.
2. The integrated LTE and WIFI antenna of claim 1, wherein: the second antenna radiation unit comprises a second feed ground, a second feed surface arranged outside the second feed ground, a second feed point arranged on the second feed surface, and a second coaxial cable connected with the second feed point and the second feed point.
3. The integrated LTE and WIFI antenna of claim 2, wherein: the second ground feed surface is located at a side close to the first antenna radiating element.
4. The integrated LTE and WIFI antenna of claim 1, wherein: the left parasitic unit and the right parasitic unit are symmetrically arranged.
5. The integrated LTE and WIFI antenna of claim 1, wherein: and a first positioning hole is formed in one side, far away from the second antenna radiating unit, of the first antenna radiating unit.
6. The integrated LTE and WIFI antenna of claim 2, wherein: and a second upper positioning hole and a second lower positioning hole are formed in the second feeding surface.
7. The integrated LTE and WIFI antenna of claim 1, wherein: the substrate is made of FR4 material.
8. The integrated LTE and WIFI antenna of claim 1, wherein: the plastic support is a cuboid, an accommodating groove is formed in one surface of the plastic support, two mounting lug plates are arranged on two sides of the plastic support respectively, the plastic support is fixed on the metal sheet through screws penetrating through the mounting lug plates, and the substrate is bonded in the accommodating groove through double faced adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021761235.XU CN212908074U (en) | 2020-08-21 | 2020-08-21 | LTE and WIFI integration antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021761235.XU CN212908074U (en) | 2020-08-21 | 2020-08-21 | LTE and WIFI integration antenna |
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| CN212908074U true CN212908074U (en) | 2021-04-06 |
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| CN202021761235.XU Active CN212908074U (en) | 2020-08-21 | 2020-08-21 | LTE and WIFI integration antenna |
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| CN (1) | CN212908074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087379A1 (en) * | 2021-11-22 | 2023-05-25 | 江西创新科技有限公司 | New 4g-wifi communication antenna |
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2020
- 2020-08-21 CN CN202021761235.XU patent/CN212908074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087379A1 (en) * | 2021-11-22 | 2023-05-25 | 江西创新科技有限公司 | New 4g-wifi communication antenna |
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