Electronic devices and their antenna structures

Abstract

An electronic device and its antenna structure are disclosed. The electronic device includes an antenna structure and a feed element; the antenna structure includes a first radiator, a ground element, a second radiator, and a third radiator; the first radiator includes a first radiating portion, a second radiating portion, a feed element, and a ground element; the ground element includes a first segment, a second segment, a third segment, a fourth segment, and a fifth segment; the first segment is connected between the first radiating portion and the feed element, and a first predetermined distance between the fourth segment and the fifth segment is between 1 mm and 20 mm; the ground element is connected between the fourth segment and the fifth segment; the second radiator is connected to the ground element, and the second radiator includes a third radiating portion, which is separate from and coupled to the second radiating portion; the third radiator is connected to the feed element, and is separate from and coupled to the first segment; the feed element includes a feed end and a ground end. The electronic device and its antenna structure of the present invention generate an operating frequency band that meets the requirements of high-frequency bandwidth.

Description

Technical Field

[0001] This invention relates to an electronic device, and more particularly to an electronic device having an antenna structure. Background Technology

[0002] First, current electronic devices, such as laptops, are not only trending towards thinner and lighter designs, but also need to maintain high performance. In existing technologies, the antenna structure design within electronic devices, in order to meet the requirement of low profile height, often results in insufficient bandwidth (especially high-frequency bandwidth).

[0003] Therefore, how to improve the communication quality of electronic devices and overcome the above-mentioned defects through improvements in antenna structure design has become one of the important issues that this technology aims to address. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electronic device and its antenna structure that address the shortcomings of the prior art.

[0005] To solve the aforementioned technical problems, the present invention provides an electronic device comprising an antenna structure and a feed element. The antenna structure includes a first radiating element, a grounding element, a second radiating element, and a third radiating element. The first radiating element includes a first radiating portion, a second radiating portion, a feed element, and a grounding portion. The first radiating portion extends along a first direction, and the second radiating portion extends along a second direction, the first direction being opposite to the second direction. The feed element is connected between the first radiating portion and the second radiating portion. The grounding portion includes a first segment connected between the first radiating portion and the feed element, a second segment connected to the first segment and bending relative to the first segment, a third segment connected to the second segment and bending relative to the second segment, and a fourth segment and a fifth segment connected to the third segment and bending relative to the third segment. A first predetermined spacing, between 1 mm and 20 mm, is provided between the fourth segment and the fifth segment. The grounding element is connected between the fourth segment and the fifth segment. The second radiating element is connected to the grounding element. The second radiating element includes a third radiating portion, which is separate from and coupled to the second radiating portion. The third radiating element is connected to the feed-in portion, and is separate from and coupled to the first section of the grounding portion. The feed-in portion includes a feed-in terminal and a grounding terminal, with the feed-in terminal electrically connected to the feed-in portion and the grounding terminal electrically connected to the grounding element.

[0006] To solve the aforementioned technical problems, another technical solution adopted by the present invention is to provide an antenna structure, which includes a first radiating element, a grounding element, a second radiating element, and a third radiating element. The first radiating element includes a first radiating portion, a second radiating portion, a feed portion, and a grounding portion. The first radiating portion extends along a first direction, and the second radiating portion extends along a second direction, the first direction being opposite to the second direction. The feed portion is connected between the first radiating portion and the second radiating portion and is electrically connected to the feed element. The grounding portion includes a first segment connected between the first radiating portion and the feed portion, a second segment connected to the first segment and turning relative to the first segment, a third segment connected to the second segment and turning relative to the second segment, and a fourth segment and a fifth segment connected to the third segment and turning relative to the third segment. A first predetermined spacing, between 1 mm and 20 mm, is provided between the fourth segment and the fifth segment. The grounding element is connected to the fourth segment and the fifth segment. The second radiating element is connected to the grounding element. The second radiating element includes a third radiating portion, which is separate from and coupled to the second radiating portion. The third radiating element is connected to the feed-in portion, and is separate from and coupled to the first section.

[0007] One of the beneficial effects of the present invention is that the electronic device and its antenna structure provided by the present invention can meet the high frequency bandwidth requirements by means of the technical solutions of "a first predetermined distance between the fourth segment and the fifth segment, the first predetermined distance being between 1mm and 20mm" and "the third radiating element being connected to the feed portion, and the third radiating element being separated from and coupled to the first segment of the ground portion".

[0008] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the antenna structure according to an embodiment of the present invention.

[0010] Figure 2 for Figure 1 An enlarged schematic diagram of Part II.

[0011] Figure 3 for Figure 1 A schematic diagram of the switching circuit, control circuit, and fourth radiating element.

[0012] Figure 4 This is a schematic diagram of an antenna structure according to another embodiment of the present invention.

[0013] Figure 5This is a schematic diagram illustrating the performance of the antenna structure of the present invention.

[0014] Figure 6 for Figure 5 An enlarged diagram of section VI.

[0015] Explanation of key component symbols:

[0016] D electronic device

[0017] T substrate

[0018] 1. First radiating element

[0019] 11 First Radiation Section

[0020] 12 Second Radiation Section

[0021] 121 Opening End

[0022] 13 Feeding Department

[0023] 131 Feed Inlet

[0024] 14 Grounding Part

[0025] 141 First Section

[0026] 142 Second Section

[0027] 1421 First side

[0028] 1422 Second side

[0029] Section 3 of 143

[0030] 144 Fourth Section

[0031] Section 5 of 145

[0032] 15 Fourth Radiation Section

[0033] 151, 152 side

[0034] 16 Radiation Branch

[0035] 161 Opening End

[0036] 2 Second radiating element

[0037] 21 Third Radiation Department

[0038] 211 Opening End

[0039] 22 body part

[0040] 23 Connecting parts

[0041] 231 Connection

[0042] 3 Third radiating component

[0043] 4 grounding components

[0044] 5. Fourth radiating component

[0045] G1 First Predetermined Spacing

[0046] G2 Second Pre-determined Spacing

[0047] H1 First Predetermined Distance

[0048] H2 Second Pre-determined Distance

[0049] H3 Third Pre-determined Distance

[0050] E1 First Electrical Length

[0051] E2 Second Electrical Length

[0052] L1 First Predetermined Length

[0053] L2 Second Predetermined Length

[0054] W1 First Pre-determined Width

[0055] W2 Second Pre-determined Width

[0056] F-feeder

[0057] F1 feed terminal

[0058] F2 grounding terminal

[0059] S-switching circuit

[0060] R control circuit

[0061] P signal transmission path

[0062] P1 First Path

[0063] P2 Second Path

[0064] P3 Third Path

[0065] SW1 First Switch

[0066] SW2 Second Switch

[0067] SW3 Third Switch

[0068] A1 First Passive Component

[0069] A2 Second Passive Component

[0070] Curves M1, M2, M3, and M4

[0071] X and Y directions Detailed Implementation

[0072] The following specific embodiments illustrate the implementation of the "electronic device and its antenna structure" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention. In addition, it should be understood that although terms such as "first," "second," and "third" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are mainly used to distinguish one element from another. Furthermore, the term "or" as used herein may, depending on the actual situation, include any one or more combinations of the associated listed items. Furthermore, in the entire text of this invention, "connect" means that there is a physical connection between two elements, and that the connection is direct or indirect. In the entire text of this invention, "couple" means that there are two elements that are separate from each other and have no physical connection, but rather that the electric field energy generated by the current of one element excites the electric field energy of the other element.

[0073] [Example]

[0074] See Figure 1 As shown, an embodiment of the present invention provides an electronic device D, which includes an antenna structure and a feed element F. The antenna structure includes a first radiator 1, a second radiator 2, a third radiator 3, and a ground element 4. Furthermore, the antenna structure may also include a substrate T, on which the first radiator 1, the second radiator 2, and the ground element 4 may be disposed. For example, the first radiator 1, the second radiator 2, the third radiator 3, and the ground element 4 may be a metal sheet, a metal wire, or other conductive material with conductive properties; the feed element F may be a coaxial cable; and the substrate T may be an FR4 (Flame Retardant 4) substrate, a printed circuit board (PCB), or a flexible printed circuit board (FPCB), however, the present invention is not limited thereto.

[0075] As described above, the first radiating element 1 includes a first radiating portion 11, a second radiating portion 12, a feed portion 13, and a grounding portion 14. The first radiating portion 11 extends along a first direction (positive X-axis direction), and the second radiating portion 12 extends along a second direction (negative X-axis direction), that is, the first radiating portion 11 and the second radiating portion 12 are parallel to each other and extend in opposite directions. Furthermore, the length of the first radiating portion 11 extending along the first direction is greater than the length of the second radiating portion 12 extending along the second direction. In addition, the feed portion 13 is connected between the first radiating portion 11 and the second radiating portion 12, and the feed portion 13 may extend towards a third direction (negative Y-axis) relative to the connection between the feed portion 13 and the second radiating portion 12. One end of the grounding portion 14 is connected between the first radiating portion 11 and the feed portion 13, and the other end is connected to the grounding element 4. Thus, the first radiating element 1 of the present invention can be a planar inverted-F antenna (PIFA) architecture; however, the present invention is not limited thereto.

[0076] The second radiating element 2 is connected to the grounding element 4. The second radiating element 2 includes a third radiating section 21, which is separate from and coupled to the second radiating section 12. The third radiating element 3 is connected to the feed section 13, and is separate from and coupled to the first section of the grounding section. The feed section F includes a feed terminal F1 and a ground terminal F2, with the feed terminal F1 electrically connected to the feed section 13 and the ground terminal F2 electrically connected to the grounding element 4. For example, the third radiating section 21 can generate a center frequency of approximately 1700 MHz, and the second radiating section 12 can generate a center frequency of approximately 2500 MHz. The third radiating section 21 and the second radiating section 12 are separate from and coupled to excite a first operating frequency band with a frequency range (i.e., bandwidth) between 1710 MHz and 2690 MHz.

[0077] See Figure 1 and Figure 2 As shown, Figure 2 for Figure 1An enlarged schematic diagram of part II. The second radiator 2 also includes a body portion 22 and a connecting portion 23. The connecting portion 23 is connected to the grounding member 4, and the body portion 22 is connected between the third radiator 21 and the connecting portion 23. The feed-in portion 13 has a feed point 131, which is the connection point where the feed end F1 of the feeder F is connected to the feed-in portion 13. Therefore, the feeder F is electrically connected to the feed end F1 through the feed point 131 to feed in a signal and transmit the signal to the feed-in portion 13. The connecting portion 23 is electrically connected between the connection point 231 of the grounding member 4 and an open end 211 of the third radiator 21 with a first electrical length E1, and between the feed point 131 and an open end 121 of the second radiator 12 with a second electrical length E2. The first electrical length E1 is greater than the second electrical length E2 (it should be noted that the electrical length refers to the length of the electrical path when the signal is transmitted on the radiator). Furthermore, the main body 22 has a first predetermined width W1 in the horizontal direction (parallel to the first direction), and the connecting part 23 has a second predetermined width W2 in the vertical direction (parallel to the third direction), wherein the first predetermined width W1 is greater than twice the second predetermined width W2. This invention, through the aforementioned technical feature that the first predetermined width W1 is greater than twice the second predetermined width W2, can further adjust the bandwidth of the first operating frequency band of the antenna structure, making its bandwidth greater than the range of 1710MHz to 2690MHz.

[0078] Furthermore, as described above, the third radiating part 21 is separated from the grounding member 4 by a first predetermined distance H1, and the second radiating part 12 is separated from the grounding member 4 by a second predetermined distance H2. The first predetermined distance H1 is not equal to the second predetermined distance H2. It is worth noting that in this embodiment, the first predetermined distance H1 is greater than the second predetermined distance H2, meaning that the third radiating part 21 is farther away from the grounding member 4 than the second radiating part 12. Therefore, by designing the third radiating part 21 to be farther away from the grounding member 4 than the second radiating part 12, the present invention improves the gain in the bandwidth range of 1710MHz to 2300MHz in the first operating frequency band.

[0079] Continue reading Figure 1As shown, the grounding portion 14 includes a first section 141 connected between the first radiating portion 11 and the feed portion 13, a second section 142 connected to the first section 141 and turning relative to the first section 141, a third section 143 connected to the second section 142 and turning relative to the second section 142, and a fourth section 144 and a fifth section 145 connected between the third section 143 and the grounding member 4 and turning relative to the third section 143. The third radiating member 3 and the first section 141 of the grounding portion 14 are separated from each other and coupled to each other to generate a second operating frequency band with a frequency range between 3 GHz and 4 GHz. The third radiating member 3 extends along a first direction and has a first predetermined length L1 in the first direction, the first predetermined length L1 being equal to one-sixteenth of the wavelength of a center frequency of the first operating frequency band. It is worth mentioning that there is a second predetermined distance G2 between the third radiating element 3 and the first segment 141. The present invention can increase the coupling between the third radiating element 3 and the first segment 141 and adjust the bandwidth from 3 GHz to 4 GHz by adjusting the size of the second predetermined distance G2 so that the third radiating element 3 is closer to the first segment 141 (i.e., the second predetermined distance G2 is smaller).

[0080] As described above, the second segment 142 of the grounding portion 14 can generate a third operating frequency band between 4 GHz and 6 GHz. The second segment 142 extends along a third direction and has a first side 1421 and a second side 1422 parallel to the third direction. A third predetermined distance H3 is provided between the first side 1421 and the second side 1422, which is equal to one-sixteenth of the wavelength of a center frequency of the third operating frequency band. Furthermore, the fourth segment 144 and the fifth segment 145 are parallel to each other, and a first predetermined spacing G1 is provided between the fourth segment 144 and the fifth segment 145, which is between 1 mm and 20 mm.

[0081] Continue reading Figure 1As shown, the first radiator 1 further includes a fourth radiator 15, which is connected to the first radiator 11. The fourth radiator 15 extends along a second direction (opposite to the extending direction of the first radiator 11). The fourth radiator 15 is separated from and coupled to the third radiator 21 and the second radiator 12 to generate a fourth operating frequency band with a frequency range between 4 GHz and 5 GHz. Further, the fourth radiator 15 has a second predetermined length L2 in the second direction (or the distance between the opposite sides 151 and 152 of the fourth radiator 15), the second predetermined length L2 being equal to a quarter wavelength of a center frequency of the fourth operating frequency band. In addition, the antenna structure includes a fourth radiator 5 electrically connected to the grounding element 4. The first radiator 11 generates a center frequency of approximately 824 MHz, and the first radiator 11, by being separated from and coupled to the fourth radiator 5, excites a fifth operating frequency band with a frequency range between 698 MHz and 960 MHz.

[0082] Continuing from the above, the fourth segment 144 is associated with low frequencies (698-960MHz, i.e., the fifth operating frequency band), and the fifth segment 145 is associated with high frequencies (3-6GHz, i.e., the second and third operating frequency bands). This invention can adjust the length of the electrical path passing through the fourth segment 144 or the fifth segment 145 by adjusting the width of the first predetermined spacing G1, thereby causing a frequency shift. For example, if the width of the first predetermined spacing G1 is increased while the position of the fourth segment 144 is fixed (i.e., the fifth segment 145 moves in the positive X direction), the frequency shifts to a higher frequency; if the width of the first predetermined spacing G1 is decreased (i.e., the fifth segment 145 moves in the negative X direction), the frequency shifts to a lower frequency. Conversely, if the width of the first predetermined spacing G1 is increased while the fifth segment 145 is fixed (i.e., the fourth segment 144 moves in the negative X direction), the frequency shifts to a lower frequency; if the width of the first predetermined spacing G1 is decreased while the fourth segment 144 moves in the positive X direction, the frequency shifts to a higher frequency.

[0083] Next, please refer to the following: Figure 1 and Figure 4 As shown, Figure 4 This is a schematic diagram of an antenna structure according to another embodiment of the present invention. (Comparison) Figure 4 and Figure 1 It can be seen that, Figure 4 and Figure 1 They have similar structures (the similarities will not be elaborated further). The difference lies in... Figure 4The fourth radiating section 15 further includes a radiating branch 16, which extends along a second direction (opposite to the extending direction of the third radiating section 21). More specifically, the radiating branch 16 is located above the third radiating section 21, and the second radiating section 12 is located below the third radiating section 21, that is, the third radiating section 21 is located between the radiating branch 16 and the second radiating section 12. Therefore, the present invention can adjust the bandwidth and impedance matching of the antenna structure at high frequencies (5GHz) by setting the radiating branch 16. It is worth mentioning that... Figure 4 In the embodiment shown, the second predetermined length L2 refers to the distance between the side 151 of the fourth radiating portion 15 and an open end 161 of the radiating branch 16.

[0084] See Figure 1 and Figure 3 As shown, Figure 3 for Figure 1 A schematic diagram of the switching circuit, control circuit, and fourth radiating element is provided. The antenna structure also includes a switching circuit S, which is electrically connected between the fourth radiating element 5 and the grounding element 4. This invention can further adjust different center frequencies in the fifth operating frequency band by switching the switching circuit S. For example, the switching circuit S includes a first mode and a second mode. The first mode has a first path P1, and the second mode has a second path P2. The first path P1 has a first impedance value, and the second path P2 has a second impedance value, wherein the first impedance value is different from the second impedance value.

[0085] Furthermore, the electronic device D may further include a control circuit R, which is electrically connected to the switching circuit S. The control circuit R controls the switching circuit S to switch between a first mode and a second mode, thereby controlling the operating frequency band of the antenna structure. For example, the control circuit R may be a microcontroller or a circuit on a mainboard to control the switching circuit S; however, the invention is not limited thereto.

[0086] For example, the switching circuit S includes a signal conduction path P and at least one ground path electrically connected to the signal conduction path P. Figure 3The example uses the first path P1, the second path P2, and the third path P3. Further, at least one grounding path may have a switching switch (e.g., the first switching switch SW1, the second switching switch SW2, and / or the third switching switch SW3) connected in series. In addition to the switching switch, the grounding path may also have a passive element (e.g., the first passive element A1 and / or the second passive element A2) connected in series. For example, the passive element may be an inductor, capacitor, or resistor. The electronic device D can use the passive element to adjust the operating bandwidth, impedance matching, return loss, and / or radiation efficiency of the antenna structure. Furthermore, the grounding path may not have any passive elements; that is, the invention is not limited by the presence or absence of passive elements. Further, the control circuit R can be used to control whether at least one grounding path (e.g., the first path P1, the second path P2, and / or the third path P3) is on, so that by selecting the grounding path, the switching circuit S can be switched between a first mode and a second mode.

[0087] As stated above, Figure 3 As shown, the first path P1, the second path P2, and the third path P3 are electrically connected to the signal conduction path P, and a first switch SW1, a second switch SW2, and a third switch SW3 are connected in series in each of the three paths. No passive element is provided on the first path P1, a first passive element A1 is connected in series on the second path P2, and a second passive element A2 is connected in series on the third path P3. For example, the first passive element A1 on the second path P2 can be a 6.8pF capacitor, and the second passive element A2 on the third path P3 can be an 18nH inductor, but the invention is not limited to these.

[0088] Furthermore, for example, the present invention can be developed into four modes of switching implementation. In the first mode, the fourth radiating element 5 is electrically connected to the control circuit R, while the first path P1, the second path P2, and the third path P3 are all in an open circuit state. In the second mode, the fourth radiating element 5 is grounded through the first path P1, that is, the fourth radiating element 5 is electrically connected to the control circuit R, and the first path P1 is in a conducting state, while the second path P2 and the third path P3 are both in an open circuit state. In the third mode, the fourth radiating element 5 is grounded through the second path P2, that is, the fourth radiating element 5 is electrically connected to the control circuit R, and the second path P2 is in a conducting state, while the first path P1 and the third path P3 are both in an open circuit state. In the fourth mode, the fourth radiating element 5 is grounded through the third path P3, that is, the fourth radiating element 5 is electrically connected to the control circuit R, and the third path P3 is in a conducting state, while the first path P1 and the second path P2 are both in an open circuit state.

[0089] Therefore, when the first path P1 is in the conducting state and the second path P2 and the third path P3 are in the non-conducting state, the center frequency of the operating frequency band between 698MHz and 960MHz can be closer to 698MHz. When the second path P2 is in the conducting state and the first path P1 and the third path P3 are in the non-conducting state, the center frequency of the operating frequency band between 698MHz and 960MHz can be closer to 960MHz. However, the present invention is not limited thereto. In other words, the switching circuit S can selectively use the first passive element A1 and / or the second passive element A2 to adjust the center frequency of the fifth operating frequency band.

[0090] Next, please refer to Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram illustrating the performance of the antenna structure of the present invention. Figure 6 for Figure 5 An enlarged diagram of section VI. Figure 5 and Figure 6 Curve M1 in the figure represents the return loss curve of electronic device D in the first mode. In the first mode, the fourth radiating element 5 is electrically connected to the control circuit R, and the first switching switch SW1, the second switching switch SW2, and the third switching switch SW3 are in a non-conducting state. Figure 5 and Figure 6 Curve M2 in the figure represents the return loss curve of electronic device D in the second mode. In the second mode, the fourth radiating element 5 is electrically connected to the control circuit R, the first switching switch SW1 is in the on state, while the second switching switch SW2 and the third switching switch SW3 are in the off state. Figure 5 and Figure 6 Curve M3 in the figure represents the return loss curve of electronic device D in the third mode. In the third mode, the fourth radiating element 5 is electrically connected to the control circuit R, the second switching switch SW2 is in the on state, and the first switching switch SW1 and the third switching switch SW3 are in the off state. Figure 5 and Figure 6 Curve M4 in the figure represents the return loss curve of electronic device D in the fourth mode. In the fourth mode, the fourth radiating element 5 is electrically connected to the control circuit R, and the third switching switch SW3 is in the on state, while the first switching switch SW1 and the second switching switch SW2 are in the off state. Therefore, the present invention can adjust the operating bandwidth, impedance matching, return loss, and / or radiation efficiency generated by the antenna structure through the selection of different paths, so that the bandwidth generated by the antenna structure can meet the user's requirements (i.e., Figure 5 and Figure 6 The specifications shown (SPEC) are as follows.

[0091] [Beneficial Effects of the Examples]

[0092] The beneficial effects of the present invention are that the electronic device D and its antenna structure provided by the present invention can generate a first operating frequency band with a frequency range (i.e., bandwidth) between 1710MHz and 2690MHz by separating and coupling the third radiating part 21 and the second radiating part 12 to each other; and generate a second operating frequency band with a frequency range between 3GHz and 4GHz by separating and coupling the third radiating element 3 and the first segment 141 of the ground part 14 to each other. Furthermore, the present invention can also generate a third operating frequency band with a frequency range between 4GHz and 6GHz by the second segment 142 of the ground part 14. Additionally, the present invention can also generate a fourth operating frequency band with a frequency range between 4GHz and 5GHz by separating and coupling the fourth radiating part 15 to the third radiating part 21 and the second radiating part 12 to each other. Moreover, the first radiating part 11 and the fourth radiating element 5 can be separated and coupled to each other to generate a fifth operating frequency band with a frequency range between 698MHz and 960MHz. Therefore, the operating frequency band generated by the antenna structure in electronic device D can meet the requirements of high-frequency and low-frequency bandwidth, conforming to the specifications of Sub-6 full-band antenna.

[0093] The above-disclosed content is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the scope of the claims of the present invention.

Claims

1. An electronic device comprising: An antenna structure, the antenna structure includes: A first radiating element includes a first radiating portion, a second radiating portion, a feed portion, and a grounding portion. The first radiating portion extends along a first direction, and the second radiating portion extends along a second direction, which is opposite to the second direction. The feed portion is connected between the first radiating portion and the second radiating portion. The grounding portion includes a first segment connected between the first radiating portion and the feed portion, a second segment connected to the first segment and turning relative to the first segment, a third segment connected to the second segment and turning relative to the second segment, a fourth segment connected to the third segment and turning relative to the third segment, and a fifth segment. The fourth segment and the fifth segment have a first predetermined distance, which is between 1 mm and 20 mm. A grounding element is connected between the fourth section and the fifth section; A second radiating element is connected to the grounding element. The second radiating element includes a third radiating portion, which is separate from and coupled to the second radiating portion. A third radiating element is connected to the feed section, and the third radiating element is separate from and coupled to the first section; as well as A feeder includes a feed end and a ground end, the feed end being electrically connected to the feed section and the ground end being electrically connected to the grounding member.

2. The electronic device as claimed in claim 1, wherein, The third radiating element is coupled to the first segment of the grounding portion to generate a second operating frequency band with a frequency range between 3 GHz and 4 GHz; wherein the third radiating element extends along the first direction and has a first predetermined length in the first direction, the first predetermined length being equal to one-sixteenth of the wavelength of a center frequency of the second operating frequency band.

3. The electronic device as claimed in claim 1, wherein, The third radiating element is coupled to the second radiating element to generate a first operating frequency band with a frequency range between 1710 Hz and 2690 Hz; wherein the third radiating element is separated from the grounding element by a first predetermined distance, and the second radiating element is separated from the grounding element by a second predetermined distance, and the first predetermined distance is not equal to the second predetermined distance.

4. The electronic device as claimed in claim 1, wherein, The second segment of the grounding portion can generate a third operating frequency band between 4 GHz and 6 GHz. The second segment extends along a third direction and has a first side and a second side parallel to the third direction. There is a third predetermined distance between the first side and the second side, which is equal to one-sixteenth of the wavelength of a center frequency of the third operating frequency band.

5. The electronic device as claimed in claim 1, wherein, The first radiating element further includes a fourth radiating part connected to the first radiating part. The fourth radiating part is separate from and coupled to the third and second radiating parts to generate a fourth operating frequency band with a frequency range between 4 GHz and 5 GHz. The fourth radiating part extends along the second direction and has a second predetermined length in the second direction. The second predetermined length is equal to one-quarter wavelength of a center frequency of the fourth operating frequency band.

6. The electronic device as claimed in claim 5, wherein, The fourth radiating part includes a radiating branch that extends along the second direction, and the third radiating part is located between the radiating branch and the second radiating part.

7. The electronic device as claimed in claim 1, wherein, The second radiating element further includes a body portion and a connecting portion, the connecting portion being connected to the grounding element, and the body portion being connected between the third radiating element and the connecting portion; wherein, the connecting portion is electrically connected between a connection point of the grounding element and an open end of the third radiating element with a first electrical length, the feed portion has a feed point, and the feed point and an open end of the second radiating element have a second electrical length, the first electrical length being greater than the second electrical length; wherein, the body portion has a first predetermined width in the first direction, the connecting portion has a second predetermined width in a third direction, the first direction being perpendicular to the third direction, and the first predetermined width being greater than twice the second predetermined width.

8. The electronic device as claimed in claim 1, wherein, The antenna structure also includes a fourth radiating element and a switching circuit electrically connected to the fourth radiating element. The fourth radiating element is coupled to the first radiating element and, through switching by the switching circuit, generates operating frequency bands with different center frequencies. The switching circuit includes a first mode and a second mode. The first mode has a first path, and the second mode has a second path. The first path has a first impedance value, and the second path has a second impedance value, and the first impedance value is different from the second impedance value.

9. The electronic device of claim 8, further comprising a control circuit electrically connected to the switching circuit, the switching circuit being controlled by the control circuit to switch to one of the first mode and the second mode.

10. An antenna structure comprising: A first radiating element includes a first radiating portion, a second radiating portion, a feed portion, and a grounding portion. The first radiating portion extends along a first direction, and the second radiating portion extends along a second direction, which is opposite to the second direction. The feed portion is connected between the first radiating portion and the second radiating portion and is electrically connected to a feed element. The grounding portion includes a first segment connected between the first radiating portion and the feed portion, a second segment connected to the first segment and turning relative to the first segment, a third segment connected to the second segment and turning relative to the second segment, and a fourth segment and a fifth segment connected to the third segment and turning relative to the third segment. The fourth segment and the fifth segment have a first predetermined distance between 1 mm and 20 mm. A grounding element is connected between the fourth section and the fifth section; A second radiating element is connected to the grounding element. The second radiating element includes a third radiating portion, which is separate from and coupled to the second radiating portion. as well as A third radiating element is connected to the feed section, and the third radiating element is separate from and coupled to the first section.

11. The antenna structure as described in claim 10, wherein, The third radiating element is coupled to the first segment of the grounding portion to generate a second operating frequency band with a frequency range between 3 GHz and 4 GHz; wherein the third radiating element extends along the first direction and has a first predetermined length in the first direction, the first predetermined length being equal to one-sixteenth of the wavelength of a center frequency of the second operating frequency band.

12. The antenna structure as described in claim 10, wherein, The third radiating element is coupled to the second radiating element to generate a first operating frequency band with a frequency range between 1710 Hz and 2690 Hz; wherein the third radiating element is separated from the grounding element by a first predetermined distance, and the second radiating element is separated from the grounding element by a second predetermined distance, and the first predetermined distance is not equal to the second predetermined distance.

13. The antenna structure as described in claim 10, wherein, The second segment of the grounding portion can generate a third operating frequency band between 4 GHz and 6 GHz. The second segment extends along a third direction and has a first side and a second side parallel to the third direction. There is a third predetermined distance between the first side and the second side, which is equal to one-sixteenth of the wavelength of a center frequency of the third operating frequency band.

14. The antenna structure as described in claim 10, wherein, The first radiating element further includes a fourth radiating part connected to the first radiating part. The fourth radiating part is separate from and coupled to the third and second radiating parts to generate a fourth operating frequency band with a frequency range between 4 GHz and 5 GHz. The fourth radiating part extends along the second direction and has a second predetermined length in the second direction. The second predetermined length is equal to one-quarter wavelength of a center frequency of the fourth operating frequency band.

15. The antenna structure as described in claim 14, wherein, The fourth radiating part includes a radiating branch that extends along the second direction, and the third radiating part is located between the radiating branch and the second radiating part.

16. The antenna structure as described in claim 10, wherein, The second radiating element further includes a body portion and a connecting portion, the connecting portion being connected to the grounding element, and the body portion being connected between the third radiating element and the connecting portion; wherein, the connecting portion is electrically connected between a connection point of the grounding element and an open end of the third radiating element with a first electrical length, the feed portion has a feed point, and the feed point and an open end of the second radiating element have a second electrical length, the first electrical length being greater than the second electrical length; wherein, the body portion has a first predetermined width in the first direction, the connecting portion has a second predetermined width in a third direction, the first direction being perpendicular to the third direction, and the first predetermined width being greater than twice the second predetermined width.

17. The antenna structure of claim 10, further comprising a fourth radiating element and a switching circuit, the switching circuit being electrically connected to the fourth radiating element; wherein, The fourth radiator is coupled to the first radiator, and the fourth radiator is switched by the switching circuit to generate operating frequency bands with different center frequencies.

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