CN219498173U - Reversely assembled antenna device - Google Patents
Reversely assembled antenna device Download PDFInfo
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- CN219498173U CN219498173U CN202320452460.2U CN202320452460U CN219498173U CN 219498173 U CN219498173 U CN 219498173U CN 202320452460 U CN202320452460 U CN 202320452460U CN 219498173 U CN219498173 U CN 219498173U
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Abstract
An antenna device assembled reversely comprises a metal element and an antenna body, wherein the metal element can be provided with a slot or a plurality of slots; the antenna body comprises a grounding element and a radiation excitation element, wherein the grounding element is arranged on the metal element in an electric connection manner and is adjacent to one edge of the metal element; the radiation excitation element is arranged on the metal element towards the direction away from the edge relative to the grounding element and partially covers the slot or slots to form a reversely assembled antenna device; by adjusting the relative positions of the shapes of the radiation excitation element and the grounding element of the antenna body and the slot hole of the metal element, the resonance mode can be generated and the resonance frequency band and the bandwidth can be adjusted. Therefore, the reversely assembled antenna device provided by the utility model can increase the bandwidth.
Description
Technical Field
The present utility model relates to an antenna device, and more particularly, to an antenna device with a reverse assembly for increasing bandwidth.
Background
Known mobile devices or notebook computers generally have a wireless communication function. Some cover long-range wireless communication ranges, such as: mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and their frequency bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz for communication, and some cover short range wireless communication ranges such as: wi-Fi, bluetooth systems use the frequency bands of 2.4GHz, 5.2GHz, and 5.8GHz for communication.
The antennas of the existing mobile devices or notebook computers and other devices are assembled in a forward direction; as shown in fig. 1, the forward assembly refers to that a grounding element a included in an antenna is electrically connected to a metal element B such as a metal casing, and is far away from an edge B1 of the metal element B, and a radiation excitation element C included in the antenna is disposed on the metal element B toward a direction approaching the edge B1 with respect to the grounding element a, and partially covers a slot hole disposed on the metal element B; the resonant mode is generated by the relative positions of the shapes of the radiation excitation element C and the grounding element A and the slot hole B2 of the metal element B, and the resonant frequency band and the frequency width are adjusted, so that the obtained frequency band and frequency width are only as much as the known common method can achieve.
Disclosure of Invention
The utility model aims to provide an antenna device capable of increasing the bandwidth.
The first embodiment of the utility model provides a reversely assembled antenna device, which may include: a metal element having a slot with a length of 1/4 to 1/2 wavelength range of the resonance frequency band; and an antenna body comprising: the grounding element is arranged on the metal element in an electric connection manner and is adjacent to one edge of the metal element; and a radiation excitation element disposed on the metal element in a direction away from an edge of the metal element with respect to the ground element, and partially disposed at the slot position. By adjusting the relative positions of the shapes of the radiation excitation element and the grounding element of the antenna body and the slot hole of the metal element, the antenna device with the reverse assembly mode can generate a resonance mode and adjust the resonance frequency band and the bandwidth of the antenna device.
In the antenna device of the first embodiment, the radiation excitation element may include: a feed radiation part coupled to the grounding element; the first connecting radiation part is connected with one end of the feed-in radiation part; the second connecting radiation part is connected with the other end of the feed-in radiation part; the first radiation part is connected with the first connection radiation part, and keeps a distance from the grounding element for controlling a low-frequency band; and a second radiation part connected with the second connection radiation part and keeping a distance from the grounding element for controlling the high frequency band.
In the antenna device of the first embodiment, the first connection radiating portion may be connected with an extension radiating portion.
In the antenna device of the first embodiment, all of the first radiation portion and the second radiation portion are disposed at the slot position, and a part of the extended radiation portion is disposed at the slot position.
In the antenna device of the first embodiment, the second connection radiation portion is connected to an impedance matching portion protruding toward the ground element, and the impedance matching portion is configured to increase the bandwidth of the low frequency band.
In the antenna device of the first embodiment, a first width is provided between the first radiating portion and the ground element, and a second width is provided between the second radiating portion and the ground element.
In the antenna device of the first embodiment, the extended radiating portion has a triangular shape.
In the antenna device of the first embodiment, the impedance matching section has a third width.
The second embodiment of the reversely assembled antenna device provided by the utility model can comprise: the metal element is provided with a first slot and a second slot, the total length of the first slot and the second slot is 1/2 wavelength range of the low-frequency resonance frequency band, and the length of the second slot is 1/4 wavelength range of the high-frequency resonance frequency band; and an antenna body comprising: the grounding element is arranged on the metal element in an electric connection manner and is adjacent to one edge of the metal element; and a radiation excitation element disposed on the metal element in a direction away from an edge of the metal element with respect to the ground element, and partially disposed at the slot position. By adjusting the relative positions of the shapes of the radiation excitation element and the grounding element of the antenna body and the slot hole of the metal element, the antenna device with the reverse assembly mode can generate a resonance mode and adjust the resonance frequency band and the bandwidth of the antenna device.
In the antenna device of the second embodiment, the radiation excitation element may include: a feed radiation part coupled to the grounding element; the first connecting radiation part is connected with one end of the feed-in radiation part; the second connecting radiation part is connected with the other end of the feed-in radiation part; the first radiation part is connected with the first connection radiation part, and a first width is arranged between the first radiation part and the grounding element and used for controlling a low-frequency band; and a second radiation part connected with the second connection radiation part and having a second width with the grounding element for controlling the high frequency band.
In the antenna device of the second embodiment, the second connection radiation portion is connected to an impedance matching portion protruding in a direction close to the grounding element, so as to increase the bandwidth of the low frequency band.
In the antenna device of the second embodiment, the second radiating portion is disposed at the second slot position, and the feed radiating portion, the first connecting radiating portion, the first radiating portion and the extension radiating portion are disposed at the first slot position.
In the antenna devices of the first and second embodiments, the metal element may be a casing of the electronic device.
Drawings
Fig. 1 is a schematic diagram showing a normal assembly form of a conventional antenna device;
fig. 2 is a schematic diagram showing a reverse assembly configuration of the antenna device of the present utility model;
fig. 3 is a schematic structural diagram showing an antenna device of a reverse assembly according to a first embodiment of the present utility model;
fig. 4 is a schematic structural diagram showing an antenna device of a reverse assembly according to a second embodiment of the present utility model;
fig. 5 is a comparison diagram showing the bandwidth test of the reversely assembled antenna device and the positively assembled antenna device according to the first embodiment of the present utility model; and
fig. 6 is a comparison chart of bandwidth test showing the reversely assembled antenna device and the positively assembled antenna device according to the second embodiment of the present utility model.
Description of the reference numerals
10. 10': antenna device
12. 12': metal element
120. 120' edge
121 slotted hole
121' first slot
121': second slot
14. 14': antenna body
141. 141' grounding element
142. 142': excitation element
1422. 1422' feed-in radiation part
1423. 1423': a second radiation portion
1424. 1424': a second connecting radiation portion
1425. 1425': first connecting radiation portion
1426. 1426' first radiating portion
1427. 1427': extension radiating portion
1428. 1428': impedance matching portion
15. 15': wire
16. 16': dielectric substrate
W1, W1' first width
W2, W2' second width
W3, W3' third width
Detailed Description
In order that the utility model may be readily understood, a detailed description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Some, but not all embodiments of the utility model are shown in the drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without undue experimentation, are within the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 2, the antenna device 10 of the present utility model is shown in a reverse assembly, in which a grounding element 141 included in an antenna is disposed on a metal element 12, such as a metal casing, and is close to an edge 120 of the metal element 12, and a radiation excitation element 142 included in the antenna is disposed on the metal element 12 opposite to the grounding element 141 in a direction away from the edge 120 and partially covers a slot 121 disposed on the metal element 12.
First embodiment
Fig. 3 is a schematic plan view showing the structure of an antenna device 10 according to the first embodiment of the present utility model. The antenna device 10 can be applied to a mobile device, for example: smart phones, tablet computers, or notebook computers, …, etc. In the first embodiment shown in fig. 3, the antenna device 10 includes at least: a metal element 12 and an antenna body 14; the metal element 12 may be a metal casing of the mobile device such as a smart phone, a tablet computer, or a notebook computer, …, etc., and the metal element 12 is processed to form a slot 121, and the length of the slot 121 is in the range of 1/4-1/2 wavelength of the resonance frequency band.
The antenna body 14 includes: a grounding element 141 and a radiation excitation element 142; wherein the grounding element 141 is a metal sheet of elongated shape and is disposed on the metal element 12 in electrical connection adjacent to one edge 120 of the metal element 12; the ground element 141 may be a system ground plane that may be used to provide a ground potential, and the shape of the ground element 141 is not particularly limited in the present utility model. The radiation excitation element 142 is disposed on the metal element 12 in a direction away from the edge 120 of the metal element 12 with respect to the ground element 141, and is partially disposed at the slot 121.
In more detail, the radiation excitation element 142 is integrally formed of a metal material to include: a feed-in radiation portion 1422 coupled to the grounding element 141; a first connection radiating portion 1425 connected to one end of the feed radiating portion 1422; a second connection radiating part 1424 connected to the other end of the feed radiating part 1422; a first radiating portion 1426 connected to the first connecting radiating portion 1425 and having a first width W1 with the grounding element 141 for controlling a low frequency band; and a second radiating portion 1423 connected to the second connecting radiating portion 1424 and having a second width W2 with the ground element 141 for controlling a high frequency band. In other words, the feed radiation portion 1422 is connected between the first connection radiation portion 1425 and the second connection radiation portion 1424; the first connection radiating part 1425 is connected between the feed radiating part 1422 and the first radiating part 1426; the feed radiation part 1422 is connected between the second connection radiation part 1424 and the first connection radiation part 1425; in a preferred embodiment, an extended radiating portion 1427 may be further connected to the first connection radiating portion 1425, for example, the extended radiating portion 1427 may be formed in a triangular shape.
All of the first radiating portion 1426 and the second radiating portion 1423 are disposed in the slot 121, and a portion of the extended radiating portion 1427 is disposed in the slot 121. The first radiating portion 1426 has a first width W1 with the grounding element 141, and the second radiating portion 1423 has a second width W2 with the grounding element 141.
In the first embodiment of the present utility model, the first connecting radiation portion 1425 is connected to an impedance matching portion 1428 protruding toward the grounding device 141, the impedance matching portion 1428 has a third width W3 in the direction toward the grounding device 141, and the bandwidth of the low frequency band can be increased by the impedance matching portion 1428.
Specifically, the feed-in radiation portion 1422 is substantially rectangular, and has a feed-in point for coupling to the positive electrode of the signal source. For example, the signal source may be a Radio Frequency (RF) module, which may be used to excite the antenna device 10. In addition, the negative electrode of the signal source may be coupled to the ground element 141. In some embodiments, the signal source may be coupled to the feed radiation portion 1422 via a coaxial cable.
The first connection radiating portion 1425 has a substantially rectangular elongated shape, and has one end coupled to the feed radiating portion 1422 and the other end coupled to the first radiating portion 1426. In some embodiments, the first connection radiating portion 1425 may further be connected with an impedance matching portion 1428 protruding toward the ground element 141.
The first radiating portion 1426 has a substantially rectangular shape, and one end thereof is coupled to the first connection radiating portion 1425.
The second radiating portion 1423 has a substantially square shape, and one end thereof is coupled to the second connecting radiating portion 1424.
In some embodiments, the antenna device 10 further includes a dielectric substrate 16 on which the ground element 141 and the excitation element 142 are disposed. For example, the dielectric substrate 16 may be a flexible circuit board (Flexible Printed Circuit, FPC) or a printed circuit board (Printed Circuit Board, PCB), but is not limited thereto.
As shown in fig. 5, after the above-mentioned reversely assembled antenna device 10 according to the first embodiment of the present utility model is compared with the forwardly assembled antenna device, it can be known that the bandwidth of the forwardly assembled antenna is 2.41G-2.51G and the bandwidth of the reversely assembled antenna is 2.41G-2.55G under the condition that the Voltage Standing Wave Ratio (VSWR) is less than 2, and it is obvious that the reversely assembled antenna can be increased by 36% of the bandwidth. And under the condition that the Voltage Standing Wave Ratio (VSWR) is smaller than 3, the bandwidth of the forward assembled antenna is 2.30G-2.58G, the bandwidth of the reverse assembled antenna is 2.25G-2.61G, and the same reverse assembled antenna can be increased by 28% of bandwidth.
Second embodiment
In a second embodiment shown in fig. 4, the antenna device 10' comprises at least: a metal element 12 'and an antenna body 14'; the metal element 12 'may be a metal casing of the mobile device such as a smart phone, a tablet computer, or a notebook computer, …, and the metal element 12' is processed to form two slots, a longer first slot 121 'and a shorter second slot 121", the total length of the first slot 121' and the second slot 121" is 1/2 wavelength range of the low frequency resonance band, and the length of the second slot 121 "is 1/4 wavelength range of the high frequency resonance band.
The antenna body 14' includes: a ground element 141 'and a radiation excitation element 142'; wherein the grounding element 141 'is a metal sheet of elongated shape and is disposed on the metal element 12' adjacent to an edge 120 'of the metal element 12' in electrical connection; the ground element 141 'may be a system ground plane that may be used to provide a ground potential, and the shape of the ground element 141' is not particularly limited in the present utility model. The radiation excitation element 142 'is disposed on the metal element 12' with respect to the grounding element 141 'in a direction away from the edge 120' of the metal element 12', and is partially disposed at the positions of the first slot 121' and the second slot 121″.
In more detail, the radiation excitation element 142' is integrally formed of a metal material to include: a feed-in radiation portion 1422' and coupled to the ground element 141' by a conductive wire 15 '; a first connection radiating portion 1425 'connected to one end of the feed radiating portion 1422'; a second connection radiating part 1424 'connected to the other end of the feed radiating part 1422'; a first radiating portion 1426 'connected to the first connecting radiating portion 1425' and having a first width W1 'with the ground element 141' for controlling a low frequency band; and a second radiating portion 1423 'connected to the second connecting radiating portion 1424' and having a second width W2 'with the ground element 141' for controlling a high frequency band. In other words, the first connection radiating part 1425' is connected between the first radiating part 1426' and the feed radiating part 1422 '; the second connection radiating portion 1424' is connected between the feed radiating portion 1422' and the second radiating portion 1423 '.
The second radiation portion 1423 'is disposed in the second slot 121'; the feed-in radiation portion 1422', the first connecting radiation portion 1425', the second radiation portion 1426', and the extension radiation portion 1427' are disposed at the position of the first slot 121 '. The first radiating portion 1426 'has a first width W1' with the grounding element 141', and the second radiating portion 1423' has a second width W2 'with the grounding element 141'.
In the second embodiment of the present utility model, the second connecting radiation portion 1424' is connected to an impedance matching portion 1428' protruding in a direction approaching the grounding element 141', the impedance matching portion 1428' has a third width W3' in a direction toward the grounding element 141', and the bandwidth of the low frequency band can be increased by the impedance matching portion 1428 '.
Specifically, the feed-in radiation portion 1422' is substantially rectangular, and has a feed-in point for coupling to the positive electrode of the signal source. For example, the signal source may be a Radio Frequency (RF) module, which may be used to excite the antenna device 10'. In addition, the negative electrode of the signal source may be coupled to the ground element 141'.
The feed-in radiation portion 1422 'is substantially rectangular, and is coupled to the ground element 141' by a conductive wire 15.
The first radiating portion 1426 'has a substantially elongated rectangular shape, and one end thereof is coupled to the first connecting radiating portion 1425'.
The second radiating portion 1423' has a substantially rectangular shape, and one end thereof is coupled to the feed radiating portion 1422' via the second connecting radiating portion 1424 '.
In some embodiments, the antenna device 10 'further includes a dielectric substrate 16' for the ground element 141 'and the excitation element 142' to be disposed thereon. For example, the dielectric substrate 16' may be a flexible circuit board (Flexible Printed Circuit, FPC) or a printed circuit board (Printed Circuit Board, PCB), but is not limited thereto.
As shown in fig. 6, by comparing the above-mentioned reversely assembled antenna device 10' according to the second embodiment of the present utility model with the forwardly assembled antenna device, it can be known that the bandwidth of the forwardly assembled antenna is 2.40G-2.52G and the bandwidth of the reversely assembled antenna is 2.39G-2.55G when the Voltage Standing Wave Ratio (VSWR) is less than 2, and it is obvious that the reversely assembled antenna can be increased by 31% of the bandwidth. And under the condition that the Voltage Standing Wave Ratio (VSWR) is smaller than 3, the bandwidth of the forward assembled antenna is 2.35G-2.57G, the bandwidth of the reverse assembled antenna is 2.32G-2.64G, and the same reverse assembled antenna can be increased by 43% of bandwidth.
The present utility model proposes a novel antenna structure. Compared with the traditional design, the utility model has the advantage of at least being capable of increasing the bandwidth, so that the utility model is very suitable for being applied to various mobile communication devices.
It should be noted that the device size, device shape, and frequency range are not limitations of the present utility model. The antenna designer may adjust these settings according to different needs.
The foregoing examples merely represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (11)
1. An inverted-assembled antenna apparatus, comprising:
a metal element having a slot, the length of the slot being in the range of 1/4 to 1/2 wavelength of the resonance frequency band; and
an antenna body comprising:
the grounding element is arranged on the metal element in an electric connection manner and is adjacent to the edge of the metal element; and
and a radiation excitation element provided on the metal element with respect to the ground element in a direction away from an edge of the metal element, and partially disposed at the slot position.
2. The reverse assembled antenna device of claim 1, wherein the radiation excitation element comprises:
a feed radiation part coupled to the grounding element;
the first connecting radiation part is connected with one end of the feed-in radiation part;
the second connecting radiation part is connected with the other end of the feed-in radiation part;
the first radiation part is connected with the first connection radiation part, and a first width is kept between the first radiation part and the grounding element so as to control a low-frequency band; and
and the second radiation part is connected with the second connection radiation part, and a second width is kept between the second radiation part and the grounding element for controlling the high-frequency band.
3. The reversely assembled antenna device of claim 2, wherein the first connection radiating portion is connected with an extension radiating portion.
4. The reversely assembled antenna device of claim 3, wherein all of the first radiation portion and the second radiation portion are disposed at the slot position, and a part of the extended radiation portion is disposed at the slot position.
5. The reversely assembled antenna device of claim 4, wherein the second connection radiating part is connected with an impedance matching part protruding toward the ground element, the impedance matching part being for increasing the bandwidth of the low frequency band.
6. The reverse assembled antenna device of claim 2 or 5, wherein the first radiating portion has a first width with the ground element and the second radiating portion has a second width with the ground element.
7. The reverse assembled antenna device of claim 5, wherein the impedance matching section has a third width.
8. An inverted-assembled antenna apparatus, comprising:
a metal element having a first slot and a second slot, wherein the total length of the first slot and the second slot is 1/2 wavelength range of the low frequency resonance band, and the length of the second slot is 1/4 wavelength range of the high frequency resonance band; and
an antenna body comprising:
the grounding element is arranged on the metal element in an electric connection manner and is adjacent to the edge of the metal element; and
and a radiation excitation element provided on the metal element with respect to the ground element in a direction away from an edge of the metal element, and partially disposed at the slot position.
9. The reverse assembled antenna device of claim 8, wherein the radiation excitation element comprises:
a feed radiation part coupled to the grounding element;
the first connecting radiation part is connected with one end of the feed-in radiation part;
the second connecting radiation part is connected with the other end of the feed-in radiation part;
the first radiation part is connected with the first connection radiation part, and a first width is arranged between the first radiation part and the grounding element and used for controlling a low-frequency band; and
and the second radiation part is connected with the second connection radiation part and is provided with a second width with the grounding element so as to control the high-frequency band.
10. The reversely assembled antenna device of claim 9, wherein said second connecting radiating portion is connected with an impedance matching portion protruding in a direction approaching said ground element for increasing a bandwidth of said low frequency band.
11. The reversely assembled antenna device of claim 10, wherein the second radiating portion is disposed at the second slot position, and the feed radiating portion, the first connecting radiating portion, the first radiating portion and the extension radiating portion are disposed at the first slot position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320452460.2U CN219498173U (en) | 2023-03-10 | 2023-03-10 | Reversely assembled antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320452460.2U CN219498173U (en) | 2023-03-10 | 2023-03-10 | Reversely assembled antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219498173U true CN219498173U (en) | 2023-08-08 |
Family
ID=87484674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320452460.2U Active CN219498173U (en) | 2023-03-10 | 2023-03-10 | Reversely assembled antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219498173U (en) |
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2023
- 2023-03-10 CN CN202320452460.2U patent/CN219498173U/en active Active
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