CN110571507B - Mobile device and antenna structure thereof - Google Patents
Mobile device and antenna structure thereof Download PDFInfo
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- CN110571507B CN110571507B CN201810567530.2A CN201810567530A CN110571507B CN 110571507 B CN110571507 B CN 110571507B CN 201810567530 A CN201810567530 A CN 201810567530A CN 110571507 B CN110571507 B CN 110571507B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
- H01Q5/385—Two or more parasitic elements
Abstract
The invention provides a mobile device and an antenna structure thereof. The antenna structure is placed beside a pivot structure of the mobile device, and a parasitic element is arranged beside the high-frequency radiating element extending from the feed element so as to be coupled and resonated with the high-frequency radiating element to generate a resonant mode which makes up for the deficiency of the bandwidth of a high-frequency band.
Description
Technical Field
The present disclosure relates to electronic devices, and particularly to a mobile device and an antenna structure thereof.
Background
Since the metal housing has the advantages of high strength, good heat dissipation, increased appearance design, and the like, more and more mobile devices (e.g., tablet computers, notebook computers, mobile phones) adopt the metal housing. However, the metal environment formed by the housing of the mobile device often affects the performance of the antenna element. For example, the coupling effect between the metal casing of the mobile device and the antenna element may form an equivalent capacitance, and the formed equivalent capacitance tends to reduce the radiation efficiency of the antenna, thereby reducing the wireless communication quality of the mobile device. In addition, the narrow bezel design, which is becoming more popular in recent years, also greatly limits the usable range of the antenna. In order to maintain the radiation efficiency of the antenna, the conventional antenna design with an all-metal back cover is usually damaged in appearance so that the antenna has a sufficient clearance for radiation, which may destroy the aesthetic feeling of the design of the product.
Disclosure of Invention
The invention provides a mobile device and an antenna structure thereof, which can ensure that an antenna still has good antenna efficiency under the condition of not damaging the appearance of the mobile device.
The mobile device of the invention comprises a first body, a second body, a pivot structure and an antenna structure. The first body and the second body rotate relatively through a pivot structure. The antenna structure is arranged in the first body. The antenna structure comprises a planar inverted-F antenna and a first parasitic element. The planar inverted-F antenna comprises a first radiating element, a second radiating element, a feed-in element, a grounding element and a third radiating element. The second radiating element extends in the opposite direction to the first radiating element. One end of the feed-in element is coupled to the joint of the first radiation element and the second radiation element, the other end of the feed-in element is provided with a feed-in point, the feed-in point is used for receiving a feed-in signal, the feed-in element operates in a first frequency band through a first resonance path extending from the feed-in point to the open end of the first radiation element, and operates in a second frequency band through a second resonance path extending from the feed-in point to the open end of the second radiation element. The grounding piece is connected with the first radiating piece and the ground plane. One end of the third radiation element is connected with the grounding element, the other end of the third radiation element is an open end, and the third radiation element is arranged in parallel with the first radiation element and provides a third resonance path operating in the first sub-frequency band. One end of the first parasitic element is connected with the ground plane, the other end is an open end, and the first parasitic element and the third radiating element are separated by a coupling space to provide a fourth resonance path operating in the second sub-band.
In an embodiment of the invention, the antenna structure further includes a second parasitic element, one end of the second parasitic element is connected to the ground plane, and the other end of the second parasitic element is an open end, and the open end of the second parasitic element is adjacent to the open end of the first radiating element, so as to provide a fifth resonant path operating in the third sub-band.
In an embodiment of the invention, the length of the fifth resonant path is between 1/3 and 1/5 wavelengths of the lowest frequency of the third sub-band.
In an embodiment of the invention, the length of the first resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency band, the length of the second resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency band, the length of the third resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency band, and the length of the fourth resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency band.
In an embodiment of the invention, the ground plane includes a pivot structure.
In an embodiment of the invention, the pivot structure includes a metal bracket and a metal rotating shaft. The metal bracket is fixedly connected to the first body and connected to the antenna structure. The metal rotating shaft is connected with the metal support, and the first machine body rotates relative to the second machine body through the rotation of the metal support relative to the metal rotating shaft.
In an embodiment of the invention, the first body includes a metal casing, a carrying element and a plastic frame, the antenna structure is formed on the carrying element, and the metal casing and the plastic frame are stacked to form the first body.
The invention also provides an antenna structure which comprises the planar inverted-F antenna and the first parasitic element. The planar inverted-F antenna comprises a first radiating element, a second radiating element, a feed-in element, a grounding element and a third radiating element. The second radiating element extends in the opposite direction to the first radiating element. One end of the feed-in element is coupled to the joint of the first radiation element and the second radiation element, the other end of the feed-in element is provided with a feed-in point, the feed-in point is used for receiving a feed-in signal, the feed-in element operates in a first frequency band through a first resonance path extending from the feed-in point to the open end of the first radiation element, and operates in a second frequency band through a second resonance path extending from the feed-in point to the open end of the second radiation element. The grounding piece is connected with the first radiating piece and the ground plane. One end of the third radiation element is connected with the grounding element, the other end of the third radiation element is an open end, and the third radiation element is arranged in parallel with the first radiation element and provides a third resonance path operating in the first sub-frequency band. One end of the first parasitic element is connected with the ground plane, the other end is an open end, and the first parasitic element and the third radiating element are separated by a coupling space to provide a fourth resonant path operating in the second sub-band.
In an embodiment of the invention, the length of the first resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency band, the length of the second resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency band, the length of the third resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency band, and the length of the fourth resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency band.
In an embodiment of the invention, the antenna structure further includes a second parasitic element, one end of the second parasitic element is connected to the ground plane, and the other end of the second parasitic element is an open end, and the open end of the second parasitic element is adjacent to the open end of the first radiating element, so as to provide a fifth resonant path operating in the third sub-band.
In an embodiment of the invention, the length of the fifth resonant path is between 1/3 and 1/5 wavelengths of the lowest frequency of the third sub-band.
In an embodiment of the invention, the antenna structure is suitable for a mobile device, and the mobile device includes a first body, a second body and a pivot structure. The first body comprises a metal shell, a bearing piece and a plastic frame, the antenna structure is formed on the bearing piece, and the metal shell and the plastic frame are mutually overlapped to form the first body. The first body and the second body rotate relatively through a pivot structure, the antenna structure is arranged in the first body and connected with the pivot structure, and the ground plane comprises the pivot structure. The pivot structure comprises a metal bracket and a metal rotating shaft. The metal bracket is fixedly connected to the first machine body. The metal rotating shaft is connected with the metal support, and the first machine body rotates relative to the second machine body through the rotation of the metal support relative to the metal rotating shaft.
Based on the above, the embodiment of the invention arranges the antenna structure beside the pivot structure of the mobile device, and arranges the parasitic element beside the high-frequency radiating element extending from the feeding element to couple and resonate with the high-frequency radiating element to generate the resonance mode for compensating the deficiency of the bandwidth of the high-frequency band, so as to effectively improve the antenna efficiency without damaging the appearance of the mobile device.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of a mobile device according to an embodiment of the invention.
Fig. 2 is a schematic configuration diagram of an antenna structure and a pivot structure according to an embodiment of the invention.
Fig. 3 is a schematic diagram of an antenna structure according to the embodiment of fig. 2.
Fig. 4 is a schematic configuration diagram of an antenna structure according to an embodiment of the present invention.
Fig. 5 is a return loss diagram of the antenna structure according to the embodiment of fig. 2.
Fig. 6 is an efficiency diagram of the antenna structure according to the embodiment of fig. 2.
Fig. 7 is a planar radiation pattern diagram of 2.4GHz and 5GHz for the antenna structure according to the embodiment of fig. 2.
Detailed Description
Fig. 1 is a schematic diagram of a mobile device according to an embodiment of the invention. The mobile device includes a first body 102, a second body 104, a pivot structure 106, and an antenna structure 108. The pivot structure 106 is connected between the first body 102 and the second body 102, and the first body 102 and the second body 104 can rotate relative to each other through the pivot structure 106. The first body 102 may include, for example, a metal housing 110 and a plastic frame 112, and the plastic frame 112 surrounds a display panel 114 of the mobile device. The metal housing 110 and the plastic frame 112 are stacked on each other to form the first body 102 of the mobile device. In addition, the antenna structure 108 is disposed in the first body 102 and adjacent to the pivot structure 106.
Further, the antenna structure 108 and the pivot structure 106 may be configured as shown in fig. 2. In the embodiment of fig. 2, the antenna structure 108 is disposed in the frame region 202 below the first body 102, which is not used for display, so that the requirement of a narrow frame design for the left, right, and top frames of the display screen is not affected. The pivot structure 106 includes a metal bracket 106-1 and a metal shaft 106-2, and the first body 102 can rotate relative to the second body 104 by the rotation of the metal bracket 106-1 relative to the metal shaft 106-2. The metal bracket 106-1 is fixed to the first body 102 (e.g., the metal casing 110 of the first body 102) and connected to the ground plane G1 of the antenna structure 108, and the metal hinge 106-2 is connected to the metal bracket 106-1, so that the metal bracket 106-1 and the metal hinge 106-2 can be regarded as an extension of the ground plane G1 of the antenna structure. The antenna structure 108 and the metal bracket 106-1 may be connected by attaching a metal foil, for example, but not limited thereto.
In detail, the antenna structure 108 may have an overall size of 25 mm long and 10 mm wide as shown in fig. 3, and includes a planar inverted F antenna and a first parasitic element 312 and a second parasitic element 314, and the planar inverted F antenna and the first parasitic element 312 and the second parasitic element 314 may be implemented in the form of an antenna pattern formed on an insulating substrate a1, for example, implemented by a printed circuit board. In addition, as shown in fig. 4, the first body 102 may further include a carrier 402, and the antenna structure 108 may be formed on the carrier 402, wherein a thickness H1 of the carrier 402 may be, for example, 2.9 mm, and a thickness H2 of the antenna structure 108 may be, for example, 0.4 mm, so that an overall height of the metal housing 110 of the antenna is only 3.3 mm, which is beneficial to thinning the first body 102.
The planar inverted-F antenna includes a first radiating element 302, a second radiating element 304, a feeding element 306, a grounding element 308 and a third radiating element 310, wherein the second radiating element 304 and the first radiating element 302 extend in opposite directions, one end of the feeding element 306 is coupled to a junction of the first radiating element 302 and the second radiating element 304, and the other end of the feeding element 306 has a feeding point F1. The grounding element 308 connects the first radiating element 302 to the ground plane G1, the third radiating element 310 is disposed parallel to the first radiating element 302, one end of the third radiating element 310 is connected to the grounding element 308, and the other end is an open end.
The feeding element 306 can receive a feeding signal from the feeding point F1 to generate a resonant mode covering a first frequency band and a second frequency band, wherein the first frequency band can be, for example, a frequency band around 2.4GHz, and the second frequency band can be, for example, a frequency band around 5 GHz. The resonant mode of the first frequency band can be generated by a first resonant path extending from the feeding point F1 to the open end of the first radiating element 302, and the resonant mode of the second frequency band can be generated by a second resonant path extending from the feeding point F1 to the open end of the second radiating element 304, and in addition, the third radiating element 310 can also provide a third resonant path operating in a first frequency sub-band, wherein the first frequency sub-band is used to compensate for the bandwidth shortage of the second radiating element 304. Wherein the length of the first resonance path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency band, the length of the second resonance path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency band, and the length of the third resonance path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first sub-band.
In addition, one end of the first parasitic element 312 is connected to the ground plane G1, and the other end is an open end, the first parasitic element 312 and the third radiating element 310 are separated by a coupling distance D1, and coupled and resonated with the third radiating element 310, so as to provide a fourth resonant path operating in a second sub-band, wherein the second sub-band is also used to compensate for the bandwidth deficiency of the second radiating element 304, and the length of the fourth resonant path is an integer multiple of 1/4 wavelength of the lowest frequency of the second sub-band. In detail, in the present embodiment, the first parasitic element 312 has an L-shaped structure formed by a first section and a second section, but not limited thereto. One end of the first section is connected to the ground plane G1, the other end is connected to one end of the second section, the other end of the second section is an open end, the second section is disposed parallel to the third radiating element 310, and is separated from the third radiating element 310 by a coupling distance D1, so as to couple and resonate with the third radiating element 310.
In addition, the second parasitic element 314 also extends from the ground plane G1 to have an open end adjacent to the open end of the first radiating element 302, so as to provide a fifth resonant path operating at the third sub-band, wherein the length of the fifth resonant path is between 1/3 wavelengths and 1/5 wavelengths of the lowest frequency of the third sub-band. The second parasitic element 314 is used for coupling and resonating with the first radiating element 302 to generate a resonance mode of a second sub-band to compensate for the bandwidth shortage of the second radiating element 304, and can also adjust the impedance matching of the antenna structure 108 in the first frequency band to improve the antenna efficiency.
Fig. 5 is a return loss diagram of the antenna structure according to the embodiment of fig. 2. Fig. 6 is an efficiency diagram of the antenna structure according to the embodiment of fig. 2. As shown in fig. 5 and 6, the antenna structure 108 of the embodiment of fig. 2 generates resonant modes at about 2.4GHz and 5GHz, and can achieve an efficiency of almost-6 dB. Therefore, the first parasitic element 312 and the second parasitic element 314 can effectively compensate the bandwidth shortage of the high frequency band.
In addition, since the metal bracket 106-1 and the metal hinge 106-2 of the pivot structure 106 in the embodiment of fig. 2 can extend the ground plane G1 of the antenna structure 108 away from the metal housing 110, the antenna structure 108 can maintain a good radiation pattern. Fig. 7 is a planar radiation pattern diagram of 2.4GHz and 5GHz for the antenna structure according to the embodiment of fig. 2. As shown in fig. 7, the radiation patterns of the antenna structure 108 at 2.4GHz and 5GHz in the X-Y plane have no significant Null point, and can maintain a good radiation pattern even in the 180-degree direction (i.e., the direction of the metal housing 110 side of the first body 102). Although the radiation pattern at 270 degrees is relatively weak, the radiation pattern can be compensated by placing a bilaterally symmetrical antenna structure on the mobile device.
In summary, the antenna structure is disposed beside the rotating shaft of the mobile device, and the parasitic element is disposed beside the high-frequency radiating element extending from the feeding element, so as to couple with the high-frequency radiating element for resonance to generate a resonance mode for compensating for the insufficiency of the bandwidth of the high-frequency band, thereby effectively improving the antenna efficiency without damaging the appearance of the mobile device. In some embodiments, the ground plane may be extended away from the metal housing by the pivot structure, so that the antenna structure has a good radiation pattern.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (9)
1. A mobile device, comprising:
a first body;
a second body;
the first machine body and the second machine body rotate relatively through the pivot structure; and
an antenna structure disposed beside the pivot structure and located in the first body, the antenna structure including:
a planar inverted-F antenna, the planar inverted-F antenna comprising:
a first radiating member;
a second radiating element extending in a direction opposite to the first radiating element;
a feeding element, one end of which is coupled to a junction of the first radiating element and the second radiating element, the other end of which has a feeding point for receiving a feeding signal, the feeding element operating in a first frequency band through a first resonant path extending from the feeding point to an open end of the first radiating element and operating in a second frequency band through a second resonant path extending from the feeding point to an open end of the second radiating element;
a grounding element connecting the first radiating element and a ground plane, wherein the ground plane comprises the pivot structure; and
a third radiating element, one end of which is connected to the grounding element and the other end of which is an open end, the third radiating element being arranged in parallel with the first radiating element and providing a third resonant path operating in the first sub-band; and
a first parasitic element, one end of which is connected to the ground plane and the other end of which is an open end, wherein the first parasitic element and the third radiating element are separated by a coupling distance and provide a fourth resonant path operating in a second sub-band; and
a second parasitic element, one end of which is connected to the ground plane and the other end of which is an open end, wherein the open end of the second parasitic element is adjacent to the open end of the first radiating element, and the second parasitic element provides a fifth resonant path operating in a third sub-band.
2. The mobile device of claim 1, wherein a length of the fifth resonance path is between 1/3 wavelengths to 1/5 wavelengths of a lowest frequency of the third sub-band.
3. The mobile device of claim 1, wherein a length of the first resonant path is an integer multiple of 1/4 wavelengths of a lowest frequency of the first frequency band, a length of the second resonant path is an integer multiple of 1/4 wavelengths of a lowest frequency of the second frequency band, a length of the third resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency sub-band, and a length of the fourth resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency sub-band.
4. The mobile device of claim 1, wherein the pivot structure comprises:
the metal bracket is fixedly connected to the first machine body and connected with the antenna structure; and
the metal rotating shaft is connected with the metal support, and the first machine body rotates relative to the second machine body through the rotation of the metal support relative to the metal rotating shaft.
5. The mobile device according to claim 1, wherein the first body comprises a metal housing, a carrier, and a plastic frame, the antenna structure is formed on the carrier, and the metal housing and the plastic frame are stacked on each other to form the first body.
6. An antenna structure adapted for a mobile device, the antenna structure disposed beside a pivot structure of the mobile device and located in a first body of the mobile device, comprising:
planar inverted-F antenna, comprising:
a first radiating member;
a second radiating element extending in a direction opposite to the first radiating element;
a feeding element, one end of which is coupled to a junction of the first radiating element and the second radiating element, the other end of which has a feeding point for receiving a feeding signal, the feeding element operating in a first frequency band through a first resonant path extending from the feeding point to an open end of the first radiating element and operating in a second frequency band through a second resonant path extending from the feeding point to an open end of the second radiating element;
a grounding element connecting the first radiating element and a ground plane, wherein the ground plane comprises the pivot structure; and
a third radiating element, one end of which is connected to the grounding element and the other end of which is an open end, the third radiating element being arranged in parallel with the first radiating element and providing a third resonant path operating in the first sub-band; and
a first parasitic element, one end of which is connected to the ground plane and the other end of which is an open end, wherein the first parasitic element and the third radiating element are separated by a coupling distance and provide a fourth resonant path operating in a second sub-band; and
a second parasitic element, one end of which is connected to the ground plane and the other end of which is an open end, wherein the open end of the second parasitic element is adjacent to the open end of the first radiating element, and the second parasitic element provides a fifth resonant path operating in a third sub-band.
7. The antenna structure of claim 6, wherein the length of the first resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency band, the length of the second resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency band, the length of the third resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the first frequency sub-band, and the length of the fourth resonant path is an integer multiple of 1/4 wavelengths of the lowest frequency of the second frequency sub-band.
8. The antenna structure of claim 6 wherein the length of the fifth resonance path is between 1/3 wavelengths to 1/5 wavelengths of the lowest frequency of the third sub-band.
9. The antenna structure of claim 6, wherein the mobile device comprises:
the antenna structure comprises a first machine body and a second machine body, wherein the first machine body comprises a metal shell, a bearing piece and a plastic side frame, the antenna structure is formed on the bearing piece, and the metal shell and the plastic side frame are mutually overlapped to form the first machine body;
a second body; and
the pivot structure, wherein the first body and the second body rotate relatively through the pivot structure, the antenna structure is connected to the pivot structure, and the pivot structure includes:
the metal bracket is fixedly connected to the first machine body; and
the metal rotating shaft is connected with the metal support, and the first machine body rotates relative to the second machine body through the rotation of the metal support relative to the metal rotating shaft.
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| CN201810567530.2A CN110571507B (en) | 2018-06-05 | 2018-06-05 | Mobile device and antenna structure thereof |
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| CN201810567530.2A CN110571507B (en) | 2018-06-05 | 2018-06-05 | Mobile device and antenna structure thereof |
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| CN101740859A (en) * | 2008-11-25 | 2010-06-16 | 和硕联合科技股份有限公司 | Multi-band antenna |
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| CN103545604A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Electronic device and multi-band antenna thereof |
| CN104377430A (en) * | 2013-08-15 | 2015-02-25 | 宏碁股份有限公司 | Multi-band antenna |
| CN106299679A (en) * | 2015-06-04 | 2017-01-04 | 启碁科技股份有限公司 | Antenna and radiofrequency signal R-T unit |
| CN108023166A (en) * | 2016-11-04 | 2018-05-11 | 宏碁股份有限公司 | Mobile device |
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| CN110571507A (en) | 2019-12-13 |
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