Mobile device and antenna structure
阅读说明:本技术 移动装置和天线结构 (Mobile device and antenna structure ) 是由 张祐嘉 魏婉竹 郭俊宏 林宗德 于 2019-04-10 设计创作,主要内容包括:本发明提供了一种移动装置和天线结构,其中移动装置包括:一无线区域网络模块、一无线广域网络模块、一第一天线元件、一第二天线元件、一第三天线元件、一第四天线元件、一第一切换器,以及一第二切换器。无线区域网络模块具有一第一埠和一第二埠。无线广域网络模块具有一第三埠、一第四埠、一第五埠,以及一第六埠。第一天线元件耦接至第三埠。第一切换器根据一第一控制信号来将第二天线元件耦接至第一埠或第四埠。第二切换器根据一第二控制信号来将第三天线元件耦接至第二埠或第五埠。第四天线元件耦接至第六埠。(The invention provides a mobile device and an antenna structure, wherein the mobile device comprises: the wireless switch device comprises a wireless local area network module, a wireless wide area network module, a first antenna element, a second antenna element, a third antenna element, a fourth antenna element, a first switch and a second switch. The wireless local area network module has a first port and a second port. The wireless wide area network module has a third port, a fourth port, a fifth port, and a sixth port. The first antenna element is coupled to the third port. The first switch couples the second antenna element to the first port or the fourth port according to a first control signal. The second switch couples the third antenna element to the second port or the fifth port according to a second control signal. The fourth antenna element is coupled to the sixth port.)
1. A mobile device, comprising:
a wireless local area network module having a first port, a second port, and a first control port;
a wireless wide area network module having a third port, a fourth port, a fifth port, and a sixth port;
a first antenna element coupled to the third port;
a second antenna element;
a first switch for coupling the second antenna element to the first port or the fourth port according to a first control signal;
a third antenna element;
a second switch for coupling the third antenna element to the second port or the fifth port according to a second control signal; and
a fourth antenna element coupled to the sixth port;
wherein the first control port is used for outputting a wireless local area network status signal;
wherein the first control signal and the second control signal are determined at least according to the wlan status signal.
2. The mobile device of claim 1, wherein the first antenna element and the fourth antenna element both cover a first frequency band, and the second antenna element and the third antenna element both cover the first frequency band or a second frequency band.
3. The mobile apparatus of claim 2, wherein the first frequency band is 1805MHz to 2690MHz, the low frequency portion of the second frequency band is 2400MHz to 2500MHz, and the high frequency portion of the second frequency band is 5150MHz to 5850 MHz.
4. The mobile apparatus of claim 1, wherein the wireless local area network module is in an on state if the wireless local area network status signal is at a low logic level, and wherein the wireless local area network module is in an off state if the wireless local area network status signal is at a high logic level.
5. The mobile device of claim 1, wherein the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port if the wireless local area network module is in an on state, and wherein the first switch couples the second antenna element to the fourth port and the second switch couples the third antenna element to the fifth port if the wireless local area network module is in an off state.
6. The mobile device of claim 1, further comprising:
an embedded controller for generating the first control signal and the second control signal.
7. The mobile device as claimed in claim 6, wherein the WWAN module further has a second control port for outputting a WWAN status signal, and the embedded controller determines the first control signal and the second control signal according to the WWAN status signal and the WWAN status signal.
8. The mobile apparatus of claim 7, wherein the WWAN module is in an ON state if the WWAN status signal is at a low logic level, and wherein the WWAN module is in an OFF state if the WWAN status signal is at a high logic level.
9. The mobile device of claim 7, wherein if the WLAN module is in an active state and the WWAN module is in an active state, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port, wherein if the WLAN module is in an active state and the WWAN module is in an inactive state, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port, wherein if the WLAN module is in an inactive state and the WWAN module is in an active state, the first switch couples the second antenna element to the fourth port and the second switch couples the third antenna element to the fifth port, and wherein if the WLAN module is in an inactive state and the WWAN module is in an inactive state, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port.
10. The mobile device of claim 6, wherein the WWAN module further has a third control port for outputting an antenna control signal, and the embedded controller determines the first control signal and the second control signal according to the WLAN status signal and the antenna control signal.
11. The mobile apparatus of claim 10, wherein the antenna control signal indicates the wireless wide area network module is operating in a small-format mimo mode if the antenna control signal is at a low logic level, and wherein the antenna control signal indicates the wireless wide area network module is operating in a large-format mimo mode if the antenna control signal is at a high logic level.
12. The mobile device of claim 11, wherein the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port if the WLAN module is in an active state and the WWAN module is operating in the GMIMO mode, wherein the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port if the WLAN module is in an active state and the WWAN module is operating in the SMIMO mode, wherein the first switch couples the second antenna element to the fourth port and the second switch couples the third antenna element to the fifth port if the WLAN module is in an inactive state and the WWAN module is operating in the GMIMO mode, and wherein if the wlan module is in an off state and the wan module is operating in the mimo mode, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port.
13. The mobile device of claim 6, wherein the first port further supports a bluetooth function, the wlan module further has a fourth control port for selectively outputting a wlan priority signal, and the first switch forces the second antenna element to be coupled to the first port if the embedded controller receives the wlan priority signal.
14. The mobile device of claim 1, wherein the second antenna element and the third antenna element each have an antenna structure, and the antenna structure comprises:
a grounding element;
a short circuit connection part coupled to the grounding element;
a first radiation part coupled to the short circuit connection part;
a second radiation part coupled to the short circuit connection part, wherein the second radiation part and the first radiation part extend in the opposite direction;
a feed-in connecting part having a feed-in point;
a third radiation part coupled to the feed-in connection part; and
a fourth radiation part coupled to the feeding connection part, wherein the fourth radiation part and the third radiation part extend in substantially opposite directions.
15. The mobile device as claimed in claim 14, wherein the combination of the short circuit connection portion, the first radiation portion, and the second radiation portion forms a larger T-shaped structure, and wherein the combination of the feeding connection portion, the third radiation portion, and the fourth radiation portion forms a smaller T-shaped structure.
16. The mobile device of claim 15, wherein a coupling gap is formed between the larger T-shaped structure and the smaller T-shaped structure such that the larger T-shaped structure is coupled and excited by the smaller T-shaped structure.
17. The mobile device as claimed in claim 14, wherein the length of the first radiating portion is greater than the length of the second radiating portion and the length of the third radiating portion, and the length of the third radiating portion is greater than the length of the fourth radiating portion.
18. An antenna structure, comprising:
a grounding element;
a short circuit connection part coupled to the grounding element;
a first radiation part coupled to the short circuit connection part;
a second radiation part coupled to the short circuit connection part, wherein the second radiation part and the first radiation part extend in the opposite direction;
a feed-in connecting part having a feed-in point;
a third radiation part coupled to the feed-in connection part; and
a fourth radiation part coupled to the feeding connection part, wherein the fourth radiation part and the third radiation part extend in substantially opposite directions.
19. The antenna structure of claim 18, wherein a combination of the short circuit connection portion, the first radiating portion, and the second radiating portion forms a larger T-shaped structure, and wherein a combination of the feed connection portion, the third radiating portion, and the fourth radiating portion forms a smaller T-shaped structure.
20. The antenna structure of claim 18 wherein the antenna structure covers a first frequency band between 1805MHz and 2690MHz or a second frequency band having a low frequency portion between 2400MHz and 2500MHz and a high frequency portion between 5150MHz and 5850 MHz.
Technical Field
The present invention relates to a mobile device, and more particularly, to a mobile device and an antenna structure thereof.
Background
With the development of mobile communication technology, mobile devices have become increasingly popular in recent years, such as: portable computers, mobile phones, multimedia players and other portable electronic devices with mixed functions. To meet the demand of people, mobile devices generally have a function of wireless communication. Some cover long-range wireless communication ranges, such as: the mobile phone uses 2G, 3G, LTE (Long Term Evolution) system and its used frequency bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz for communication, while some cover short-distance wireless communication ranges, for example: Wi-Fi and Bluetooth systems use frequency bands of 2.4GHz, 5.2GHz, and 5.8GHz for communication.
An Antenna (Antenna) is an indispensable element in the field of wireless communication. If the Bandwidth (Bandwidth) of the antenna for receiving or transmitting signals is insufficient, the communication quality of the mobile device is easily degraded. Therefore, it is a challenge for antenna designers how to design a small-sized, broadband antenna element in a limited space of a mobile device. In addition, the trend of new generation products is to increase the number of antennas in the mobile device in order to achieve higher mobile internet access speed. However, it is also a challenge for system designers to increase the number of antennas without increasing the size of the product.
Disclosure of Invention
In a preferred embodiment, the present invention provides a mobile device, comprising: a wireless local area network module having a first port, a second port, and a first control port; a wireless wide area network module having a third port, a fourth port, a fifth port, and a sixth port; a first antenna element coupled to the third port; a second antenna element; a first switch for coupling the second antenna element to the first port or the fourth port according to a first control signal; a third antenna element; a second switch for coupling the third antenna element to the second port or the fifth port according to a second control signal; and a fourth antenna element coupled to the sixth port; wherein the first control port is used for outputting a wireless local area network status signal; wherein the first control signal and the second control signal are determined at least according to the wlan status signal.
In some embodiments, the first antenna element and the fourth antenna element both cover a first frequency band, and the second antenna element and the third antenna element both cover the first frequency band or a second frequency band.
In some embodiments, the first frequency band is between 1805MHz to 2690MHz, the low frequency portion of the second frequency band is between 2400MHz to 2500MHz, and the high frequency portion of the second frequency band is between 5150MHz to 5850 MHz.
In some embodiments, the wireless local area network module is in an on state if the wireless local area network status signal is at a low logic level, and the wireless local area network module is in an off state if the wireless local area network status signal is at a high logic level.
In some embodiments, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port if the wireless area network module is in an on state, and wherein the first switch couples the second antenna element to the fourth port and the second switch couples the third antenna element to the fifth port if the wireless area network module is in an off state.
In some embodiments, the mobile device further comprises: an embedded controller for generating the first control signal and the second control signal.
In some embodiments, the wireless wide area network module further has a second control port for outputting a wireless wide area network status signal, and the embedded controller determines the first control signal and the second control signal according to the wireless wide area network status signal and the wireless wide area network status signal.
In some embodiments, the wireless wide area network module is in an on state if the wireless wide area network status signal is at a low logic level, and the wireless wide area network module is in an off state if the wireless wide area network status signal is at a high logic level.
In some embodiments, if the wireless local area network module is in an on state and the wireless wide area network module is in an on state, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port, wherein if the wireless local area network module is in an on state and the wireless wide area network module is in an off state, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port, wherein if the wireless local area network module is in an off state and the wireless wide area network module is in an on state, the first switch couples the second antenna element to the fourth port and the second switch couples the third antenna element to the fifth port, and wherein if the wireless local area network module is in an off state and the wireless wide area network module is in an off state, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port.
In some embodiments, the wlan module further has a third control port for outputting an antenna control signal, and the embedded controller determines the first control signal and the second control signal according to the wlan status signal and the antenna control signal.
In some embodiments, the antenna control signal is at a low logic level indicating that the wireless wide area network module is operating in a small-sized mimo mode, and wherein the antenna control signal is at a high logic level indicating that the wireless wide area network module is operating in a large-sized mimo mode.
In some embodiments, if the wireless local area network module is in an active state and the wireless wide area network module operates in the massive mimo mode, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port, wherein if the wireless local area network module is in an inactive state and the wireless wide area network module operates in the massive mimo mode, the first switch couples the second antenna element to the fourth port and the second switch couples the third antenna element to the fifth port, and wherein if the wlan module is in an off state and the wan module is operating in the mimo mode, the first switch couples the second antenna element to the first port and the second switch couples the third antenna element to the second port.
In some embodiments, the first port further supports a bluetooth function, the wlan module further has a fourth control port for selectively outputting a wlan priority signal, and the first switch forces the second antenna element to be coupled to the first port if the embedded controller receives the wlan priority signal.
In some embodiments, the second antenna element and the third antenna element each have an antenna structure, and the antenna structure includes: a grounding element; a short circuit connection part coupled to the grounding element; a first radiation part coupled to the short circuit connection part; a second radiation part coupled to the short circuit connection part, wherein the second radiation part and the first radiation part extend in the opposite direction; a feed-in connecting part having a feed-in point; a third radiation part coupled to the feed-in connection part; and a fourth radiation part coupled to the feeding connection part, wherein the fourth radiation part and the third radiation part extend in substantially opposite directions.
In some embodiments, the combination of the short circuit connection portion, the first radiation portion, and the second radiation portion forms a larger T-shaped structure, and the combination of the feed connection portion, the third radiation portion, and the fourth radiation portion forms a smaller T-shaped structure.
In some embodiments, a coupling gap is formed between the larger T-shaped structure and the smaller T-shaped structure, such that the larger T-shaped structure is excited by the smaller T-shaped structure in a coupled manner.
In some embodiments, the length of the first radiating portion is greater than the length of the second radiating portion and the length of the third radiating portion, and the length of the third radiating portion is greater than the length of the fourth radiating portion.
In another preferred embodiment, the present invention provides an antenna structure, comprising: a grounding element; a short circuit connection part coupled to the grounding element; a first radiation part coupled to the short circuit connection part; a second radiation part coupled to the short circuit connection part, wherein the second radiation part and the first radiation part extend in the opposite direction; a feed-in connecting part having a feed-in point; a third radiation part coupled to the feed-in connection part; and a fourth radiation part coupled to the feeding connection part, wherein the fourth radiation part and the third radiation part extend in substantially opposite directions.
In some embodiments, the antenna structure covers a first frequency band between 1805MHz and 2690MHz or a second frequency band having a low frequency portion between 2400MHz and 2500MHz and a high frequency portion between 5150MHz and 5850 MHz.
Drawings
Fig. 1 is a schematic diagram illustrating a mobile device according to an embodiment of the invention.
Fig. 2 is a schematic diagram illustrating a mobile device according to an embodiment of the invention.
Fig. 3 is a schematic diagram illustrating a mobile device according to an embodiment of the invention.
Fig. 4 is a diagram illustrating a mobile device according to an embodiment of the invention.
Fig. 5 is a top view of an antenna structure according to an embodiment of the invention.
Fig. 6 is a return loss diagram illustrating an antenna structure according to an embodiment of the present invention.
Fig. 7 is a return loss diagram illustrating an antenna structure according to an embodiment of the present invention.
Fig. 8 is a diagram illustrating an actual product of a mobile device according to an embodiment of the invention.
Reference numerals:
100. 200, 300, 400, 800-mobile device;
110-wireless area network module;
120-wireless wide area network module;
131 to a first antenna element;
132 to a second antenna element;
133 to a third antenna element;
134 to a fourth antenna element;
140-a first switch;
150 to a second switch;
260-embedded controller;
500-an antenna structure;
505-a dielectric substrate;
510-a grounding element;
520-short circuit connection part;
521-a first end of the short circuit connection;
522 to a second end of the short circuit connection;
530-a first radiation part;
531 to a first end of the first radiating section;
532-a second end of the first radiating part;
540 to a second radiation section;
541-a first end of a second radiating part;
542 to a second end of the second radiating section;
550-feeding in a connecting part;
551-feeding in the first end of the connecting part;
552 to a second end of the feed connection;
560 to a third radiation section;
561 a first end of a third radiation part;
562 to a second end of the third radiating section;
570 to a fourth radiation section;
571 to a first end of the fourth radiation part;
572 to a second end of the fourth radiation portion;
590-signal source;
FB1 — first frequency band;
FB 2-second band;
FB 21-the low frequency portion of the second band;
FB 22-the high frequency portion of the second band;
FP-feed point;
GC 1-coupling gap;
l1, L2, L3, L4-length;
p1-first port;
p2-second port;
p3-third port;
p4-fourth port;
p5-fifth port;
p6-sixth port;
PC 1-a first control port;
PC 2-a second control port;
PC 3-third control port;
PC 4-the fourth control port;
SC 1-first control signal;
SC 2-second control signal;
SA-antenna control signals;
SL-wireless area network status signals;
SP-wireless area network priority signal;
SW-WWAN status signal.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below.
Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The term "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to achieve the basic technical result. Furthermore, the term "coupled" is used in this specification to include any direct or indirect electrical connection. Thus, if a first device couples to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.
Fig. 1 is a diagram illustrating a mobile device 100 according to an embodiment of the invention. For example, the mobile device 100 may be a Notebook Computer (Notebook Computer) or a Tablet Computer (Tablet Computer). As shown in fig. 1, the mobile device 100 at least includes: a Wireless Local Area Network (WLAN)
The shapes and kinds of the
In some embodiments, the
However, the present invention is not limited thereto. In other embodiments, the
In other embodiments, the
The
The
The following embodiments will describe the operation principle of the mobile device 100 in detail. It must be understood that these drawings and descriptions are only exemplary and are not intended to limit the scope of the present invention.
In some embodiments, the first control port PC1 of the
wireless area network status signal
Second antenna element
Third antenna element
Low logic level
Coupling to wireless local area network module
Coupling to wireless local area network module
High logic level
Coupling to wireless wide area network module
Coupling to wireless wide area network module
Table one: first switching truth table
As described in table one, if the
Fig. 2 is a diagram illustrating a
table two: second switching truth table
According to table two, if the
Fig. 3 is a diagram illustrating a
table three: third switching truth table
According to table three, if the
Fig. 4 is a diagram illustrating a
According to the embodiments of fig. 1-4, the present invention gives priority to the use of the
The following embodiments will describe the antenna structure of the
Fig. 5 is a top view of an antenna structure 500 according to an embodiment of the invention. For example, the aforementioned
The grounding element 510 may be a Ground Copper Foil (Ground Copper Foil), which may be substantially rectangular in shape. The Ground element 510 is used for providing a Ground Voltage (Ground Voltage). The short circuit connection 520 may have a substantially straight bar shape. The short circuit connection 520 has a first end 521 and a second end 522, wherein the first end 521 of the short circuit connection 520 is coupled to the ground element 510. The first radiation portion 530 may substantially have a straight bar shape, which may be substantially perpendicular to the short connection portion 520. The first radiating portion 530 has a first End 531 and a second End 532, wherein the first End 531 of the first radiating portion 530 is coupled to the second End 522 of the short-circuit connecting portion 520, and the second End 532 of the first radiating portion 530 is an Open End (Open End). The second radiation part 540 may substantially have a straight bar shape, which may be substantially perpendicular to the short connection part 520. The second radiation part 540 has a first end 541 and a second end 542, wherein the first end 541 of the second radiation part 540 is coupled to the second end 522 of the short-circuit connection part 520, and the second end 542 of the second radiation part 540 is an open end. The second end 542 of the second radiating portion 540 and the second end 532 of the first radiating portion 530 may extend in substantially opposite directions. The length L1 of the first radiation part 530 may be greater than the length L2 of the second radiation part 540. For example, the length L1 of the first radiation part 530 may be at least 5 times or more the length L2 of the second radiation part 540. In some embodiments, the combination of the short circuit connection part 520, the first radiation part 530, and the second radiation part 540 together form a larger T-shaped structure.
The feed connection 550 may be substantially in the shape of a straight bar. The Feeding connection portion 550 has a first end 551 and a second end 552, wherein a Feeding Point (FP) is located at the first end 551 of the Feeding connection portion 550. The feed point FP may be coupled to a Signal Source (Signal Source) 590. For example, the signal source 590 may be a Radio Frequency (RF) module, which may be used to excite the antenna structure 500. The signal source 590 may be equivalent to the first port P1 or the second port P2 of the
Fig. 6 is a Return Loss (Return Loss) diagram of an antenna structure 500 according to an embodiment of the invention. In the embodiment of fig. 6, the antenna structure 500 is coupled to any port of the wireless wide
In some embodiments, the principles of operation of the antenna structure 500 may be as follows. The first radiation portion 530, the third radiation portion 560, and the fourth radiation portion 570 can be excited together to generate the first
In some embodiments, the element dimensions of the antenna structure 500 may be as follows. The length L1 of the first radiation part 530 may be substantially equal to 0.25 times the wavelength (λ/4) of the lowest frequency of the first
Fig. 8 is a diagram illustrating an actual product of a
The present invention proposes a novel mobile device comprising a multiband antenna structure and a corresponding switching mechanism. In general, the present invention has at least advantages of small size, wide frequency band, and small number of antennas, so it is well suited for various Narrow frame (Narrow Border) mobile communication devices.
It is noted that the sizes, shapes and frequency ranges of the above-mentioned components are not limitations of the present invention. The antenna designer can adjust these settings according to different needs. The mobile device and the antenna structure of the present invention are not limited to the states illustrated in fig. 1 to 8. The present invention may include only any one or more features of any one or more of the embodiments of fig. 1-8. In other words, not all illustrated features may be implemented in the mobile device and antenna structure of the present invention.
Ordinal numbers such as "first," "second," "third," etc., in the specification and in the claims, do not have a sequential relationship with each other, but are used merely to identify two different elements having the same name.
Although the present invention has been described with reference to particular embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
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