Patent Application
20250105512
This application claims the benefit of priority to Taiwan Patent Application No. 112136237, filed on Sep. 22, 2023. The entire content of the above identified application is incorporated herein by reference.
The present disclosure relates to an antenna structure and an electronic device, and more particularly, to an antenna structure arranged around a speaker and an electronic device having such antenna structure.
There is an increasing demand for functionality and performance in electronic devices, and for electronic devices having limited volume size, the position and size of antennas in electronic devices are compressed. At the same time, the bandwidth that the antenna needs to cover is getting broader, and so the space utilization of antennas in electronic devices becomes critical.
In view of this, how to develop an antenna structure that can effectively utilize the remaining space in the electronic device and extend the bandwidth has become a goal in the related industries.
It is an aspect of the present disclosure to provide an antenna structure that includes a feeding source, a main radiation portion, a metal portion, and a grounding portion. The main radiation portion is signally connected to the feeding source. The metal portion is spaced apart from the main radiation portion by a first gap. The grounding portion is spaced apart from the metal portion by a second gap. The grounding portion is spaced apart from the main radiation portion by a third gap. The main radiation portion couples with the metal portion via the first gap, and the grounding portion couples with the metal portion via the second gap.
It is another aspect of the present disclosure to provide an electronic device that includes a metal portion and an antenna unit. The antenna unit includes a feeding source, a main radiation portion, and a grounding portion. The main radiation portion is signally connected to the feeding source and is spaced apart from the metal portion by a first gap. The grounding portion is spaced apart from the metal portion by a second gap and is connected to a grounding layer. The main radiation portion couples with the metal portion via the first gap, and the grounding portion is couples with the metal portion via the second gap.
The present disclosure can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:
The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a”, “an”, and “the” includes plural reference, and the meaning of “in” includes “in” and “on”. Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.
The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first”, “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.
In the present disclosure, when an element (i.e. a unit or a module) is described to “connect” to another element, it means to that the element is directly connected to the other element, or that certain element is indirectly connected to the other element, which implies that there is another element between the element and the other element. When an element is described to “directly connect” to another element, it means to no other element is between the element and the other element.
Specifically, the main radiation portion 120 can include a first segment 121 and a second segment 122. The first segment 121 is connected to the feeding source 110. The second segment 122 is perpendicularly connected to the first segment 121 and extends in a direction toward the metal portion 130. There is a first gap G1 between the second segment 122 and the metal portion 130. The grounding portion 140 includes a third segment 141, a fourth segment 142, and a grounding layer 143. The third segment 141 is parallel to the second segment 122, and there is a third gap G3 between the second segment 122 and the third segment 141. The fourth segment 142 is perpendicularly connected to the third segment 141 and overlaps with the metal portion 130. The fourth segment 142 is connected to the grounding layer 143. In other words, the main radiation portion 120 can be in an inverted L shape; the grounding portion 140 can be in a T shape, but the present disclosure is not limited thereto. The first gap G1 can be greater than or equal to 2 millimeters and less than or equal to 6 millimeters, and the second gap G2 can be greater than or equal to 0.5 millimeters and less than or equal to 3 millimeters, but the present disclosure is not limited thereto. In
When a signal is fed from the feeding source 110, its path can be as shown in the coupling path CR in
Specifically, one end of the high-frequency radiation portion 150 is connected to the first segment 121, and the other end extends in a direction toward the second segment 122. The resonant frequency of the high-frequency radiation portion 150 is between 4 GHz and 5 GHz. The branch radiation portion 160 is located away from the metal portion 130 and is parallel to the first segment 121. The feeding source 110 and the first segment 121 are located between the branch radiation portion 160 and the metal portion 130. The resonant frequency of the branch radiation portion 160 is 3 GHZ. The floating portion 170 is connected to the metal portion 130 and is arranged between the main radiation portion 120 and the metal portion 130, and between the third segment 141 of the grounding portion 140 and the metal portion 130.
Specifically, the electronic device 200 can be a notebook computer, a personal digital assistant, or other electronic devices, but the present disclosure is not limited thereto. In the third embodiment, the metal portion M1 can be arranged in the transducer assembly, and can also be a part of the transducer assembly in the electronic device 200. In addition, the floating portion 170 can be made of metal material and can be used to block the audio source signal of the audio source line L1 from interfering with the antenna unit 202. Thus, the electronic device 200 of the present disclosure places the antenna unit 202 around the metal portion M1, effectively utilizing the space in the electronic device 200 while extending the bandwidth of the antenna unit 202.
In view of the above, the present disclosure has the following advantages. First, the antenna structure of the present disclosure can expand the low-frequency bandwidth of the antenna structure through secondary coupling of the metal portion respectively with the main radiation portion and the grounding portion, extending the low-frequency band to 1.4 GHz. Second, the electronic device of the present disclosure places the antenna unit around the metal portion, effectively utilizing the space in the electronic device while extending the bandwidth of the antenna unit. Third, the electronic device of the present disclosure can avoid the interference caused by the noise signal generated by the sensing unit to the antenna unit through the filter circuit formed by the filter component and the inductor component.
The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.
| Number | Date | Country | Kind |
|---|---|---|---|
| 112136237 | Sep 2023 | TW | national |
