Electronic device and antenna feed module

Abstract

An electronic device and an antenna feeding module. The electronic device includes a metal shell, a carrier, and a feeding circuit; the metal shell is provided with a slot having an open end and a closed end; the carrier is disposed on the metal shell; the feeding circuit is disposed in the carrier and includes a feeding element and a radiating element; the radiating element includes a coupling portion, a radiating branch, and a feeding portion, the feeding portion being coupled to the feeding element, a coupling gap being provided between the coupling portion and the metal shell, and the width of the coupling gap being less than 0.5 times the width of the slot; the feeding circuit is used to excite the metal shell, and the metal shell and the radiating element generate a first resonant path having a first resonant mode; the feeding circuit is used to excite the metal shell, and the coupling portion and the metal shell are coupled to each other and generate a second resonant path having a second resonant mode; the first resonant mode and the second resonant mode are different. The electronic device and the antenna feeding module provided by the present invention can reconstruct resonant paths of different lengths to meet the broadband operation requirements of the low-frequency / high-frequency bands.

Description

Technical Field

[0001] The present invention relates to an electronic device and an antenna feeding module, and more particularly to an electronic device and an antenna feeding module capable of meeting broadband operation requirements of low-frequency / high-frequency bands. Background Art

[0002] Currently, portable electronic devices (e.g., notebook computers) are becoming increasingly sophisticated in design, with thinner and wider screens. In this case, the antenna structure installed inside the product must be placed on the base of the product with a metal casing, which can easily affect the antenna performance. In addition, after the release of the IEEE 802.11ax standard, the operating frequency band of the antenna structure in existing electronic devices can no longer meet the requirements of the IEEE 802.11ax standard. 6E broadband requirements.

[0003] Therefore, how to overcome the above-mentioned defects through improvement of structural design has become one of the important issues to be solved in this field. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electronic device and an antenna feeding module to address the deficiencies of the prior art.

[0005] To address the aforementioned technical problems, one of the technical solutions employed by the present invention is to provide an electronic device comprising a metal housing, a carrier, and a feeding circuit. The metal housing has a slot defined therein, the slot comprising an open end and a closed end. The carrier is disposed on the metal housing. The feeding circuit is disposed within the carrier and comprises a feeding element and a radiating element. The vertical projection of the radiating element on the metal housing at least partially overlaps with the slot. The radiating element comprises a coupling portion, a radiating branch, and a feeding portion. The radiating branch is located between the coupling portion and the feeding portion. The feeding portion is coupled to the feeding element. A coupling gap is defined between the coupling portion and the metal housing, and the width of the coupling gap is less than 0.5 times the width of the slot. The feeding circuit is configured to excite the metal housing, causing the metal housing and the radiating element to generate a first resonant path having a first resonant mode. The feeding circuit is configured to excite the metal housing, causing the coupling portion and the metal housing to couple to form an electrical path, thereby generating a second resonant path having a second resonant mode, wherein the first resonant mode is different from the second resonant mode.

[0006] To solve the aforementioned technical problems, another technical solution adopted by the present invention is to provide an antenna feed module, which is disposed in a metal housing having a slot. The antenna feed module includes a carrier and a radiating element. The carrier is disposed in the metal housing. The radiating element is disposed on the carrier, and a vertical projection of the radiating element on the metal housing at least partially overlaps with the slot. The radiating element includes a coupling portion, a radiating branch, and a feeding portion. The radiating branch is located between the coupling portion and the feeding portion. The feeding portion is used to couple to a feeding element. A coupling gap is defined between the coupling portion and the metal housing, and the width of the coupling gap is less than 0.5 times the width of the slot.

[0007] In order to solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide an electronic device, which includes a metal shell, a carrier and a feeding circuit. The metal shell is provided with a slot, and the slot includes an open end and a closed end. The carrier is arranged in the metal shell. The feeding circuit is arranged in the carrier, and the feeding circuit includes a feeding part, a radiating part, a capacitor element and a connecting part. The vertical projection of the radiating part on the metal shell at least partially overlaps with the slot. The radiating part includes a radiating branch and a feeding part. The feeding part is coupled to the feeding part, the capacitor element is electrically connected to the radiating part, and the connecting part is coupled between the radiating part and the metal shell. The feeding circuit is used to excite the metal shell, so that the metal shell and the radiating part generate a first resonance path with a first resonance mode, or generate a second resonance path with a second resonance mode, and the first resonance mode is different from the second resonance mode.

[0008] In order to solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide an antenna feeding module, which is arranged in a metal shell having a slot, and the antenna feeding module includes a carrier, a radiating element, a capacitor element and a connector. The carrier is arranged on the metal shell. The radiating element is arranged on the carrier, and the vertical projection of the radiating element on the metal shell at least partially overlaps with the slot. The radiating element includes a radiating branch and a feeding portion, and the feeding portion is used to couple to a feeding element. The capacitor element is electrically connected to the radiating element. The connector is coupled between the radiating element and the metal shell.

[0009] One of the beneficial effects of the present invention is that the electronic device and antenna feeding module provided by the present invention can utilize the technical solutions of "a feeding circuit for stimulating the metal shell so that the coupling portion and the metal shell are coupled to each other to form an electrical path" and "a capacitor element is electrically connected to the radiating element, and a connecting element is coupled between the radiating element and the metal shell" to utilize the different characteristics of the coupling capacitor or the physical capacitor element at low frequencies / high frequencies, so that the slots in the metal shell can reorganize resonant paths of different lengths to meet the broadband operation requirements of the low-frequency / high-frequency bands.

[0010] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and illustration and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the electronic device of the present invention.

[0012] Figure 2 FIG. 1 is a partial schematic diagram of the electronic device of the present invention.

[0013] Figure 3 It is a three-dimensional schematic diagram of the metal housing and antenna feeding module of the electronic device of the present invention.

[0014] Figure 4 FIG. 4 is a schematic diagram of a slot in a metal casing of an electronic device according to the present invention.

[0015] Figure 5 FIG. 1 is a schematic diagram of the slots of the metal casing and the antenna feeding module of the electronic device of the present invention.

[0016] Figure 6 Schematic diagram of the first resonance path, the second resonance path, the third resonance path and the fourth resonance path of the first embodiment of the electronic device of the present invention.

[0017] Figure 7 FIG. 1 is a schematic diagram of a first resonant path, a second resonant path, a third resonant path, and a fourth resonant path of a second embodiment of an electronic device according to the present invention.

[0018] Figure 8 FIG. 1 is a schematic diagram of a radiation element, a capacitor element, and a connecting element of the second embodiment of the electronic device of the present invention.

[0019] Figure 9 FIG. 1 is a schematic diagram of a first resonant path, a second resonant path, a third resonant path, and a fourth resonant path of a third embodiment of an electronic device according to the present invention.

[0020] Figure 10 FIG. 4 is a schematic diagram showing the effectiveness of the antenna structure of the electronic device of the present invention.

[0021] Description of main component symbols:

[0022] D Electronic Devices

[0023] 1 Metal housing

[0024] 10 slots

[0025] 101 Open End

[0026] 102 closed end

[0027] 11 First slot wall

[0028] 12 Second slot wall

[0029] 13 Third slot wall

[0030] 14 Fourth slot wall

[0031] 15 Fifth slot wall

[0032] 2 Carrier board

[0033] 3 Feeding circuit

[0034] 31 Feedthrough

[0035] 32 Radiating Parts

[0036] 321 Radiating Branch

[0037] 3211 Open End

[0038] 322 Feeding Department

[0039] 323 Coupling

[0040] 33 Capacitor element

[0041] 34 Connectors

[0042] 341 contact points

[0043] H is the width of the coupling gap

[0044] T-slot width

[0045] P1 first resonance path

[0046] P2 Second resonance path

[0047] P3 third resonance path

[0048] P4 Fourth resonance path

[0049] A Intersection Point

[0050] L1 First axis

[0051] L2 Second axis

[0052] L3 centerline

[0053] H1 First predetermined distance

[0054] H2 Second predetermined distance

[0055] H3 Third predetermined distance

[0056] H4 Fourth predetermined distance

[0057] S Switching element

[0058] 323P coupling point

[0059] 311 vertical projection position

[0060] X, Y, Z directions DETAILED DESCRIPTION

[0061] The following is an explanation of the implementation of the "electronic device and antenna feed module" disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following embodiments will further explain the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention. In addition, it should be understood that although terms such as "first", "second", and "third" may be used in this document to describe various elements, these elements should not be limited by these terms. These terms are mainly used to distinguish one element from another. In addition, the term "or" used in this document may include any one or more combinations of the associated listed items depending on the actual situation. In addition, the term "connect" as used throughout this disclosure refers to a physical connection between two elements, whether direct or indirect, and the term "couple" as used throughout this disclosure refers to a separation between two elements without a physical connection, whereby the electric field energy generated by the current in one element excites the electric field energy in the other element.

[0062] [First embodiment]

[0063] See Figure 1 As shown, the present invention provides an electronic device D capable of transmitting and receiving radio frequency (RF) signals. For example, the electronic device D can be a smartphone, a tablet computer, or a notebook computer. While the present invention will be described using the electronic device D as a notebook computer, the present invention is not limited thereto. Furthermore, for example, the electronic device D can generate an operating frequency band within a frequency range between 2400 MHz and 2500 MHz and between 5150 MHz and 7125 MHz, the present invention is not limited thereto.

[0064] See Figure 2 、 Figure 3 and Figure 4 As shown, Figure 2 is a partial schematic diagram of the electronic device of the present invention, Figure 3 is a three-dimensional schematic diagram of the metal housing and antenna feeding module of the electronic device of the present invention, Figure 4 The figure shows a schematic diagram of a slot in the metal housing of an electronic device according to the present invention. Electronic device D comprises a metal housing 1, a carrier board 2, and a feed circuit 3. The antenna feed module primarily includes the carrier board 2 and the feed circuit 3. Metal housing 1 defines a slot 10, which includes an open end 101 and a closed end 102. The carrier board 2 is mounted on metal housing 1, and the feed circuit 3 is mounted within carrier board 2. It should be noted that the housing structure of electronic device D generally includes an upper housing and a lower housing. The upper housing can be the C component of a notebook computer, and the lower housing can be the D component of a notebook computer. In the present invention, the metal housing 1 with slot 10 represents the lower housing. For example, slot 10 can be formed along the sides and bottom of the lower housing and form an L-shape, but the present invention does not limit the shape of slot 10. Furthermore, the present invention does not limit the material of carrier board 2.

[0065] See Figure 4 and Figure 5 As shown, Figure 5 FIG. 1 is a schematic diagram of the slots of the metal casing and the antenna feeding module of the electronic device of the present invention. Figure 4 and Figure 5The following example illustrates the projection of the slot of a metal housing and the antenna feed module on the XY plane. A slot 10 is provided on the metal housing 1. The slot 10 includes an open end 101 and a closed end 102. A coupling gap is defined between the coupling portion 323 and the metal housing 1, and the width H of the coupling gap is less than 0.5 times the slot width T. Preferably, the width H of the coupling gap is less than 1 mm. The feed circuit 3 includes a feed element 31 and a radiating element 32. The vertical projection of the radiating element 32 on the metal housing 1 at least partially overlaps or completely overlaps with the slot 10. The radiating element 32 includes a radiating branch 321, a feeding portion 322, and a coupling portion 323. The radiating branch 321 is located between the coupling portion 323 and the feeding portion 322. The radiating branch 321, the feeding portion 322, and the coupling portion 323 are connected at a joint. The radiating branch 321 extends relative to the connection along the negative X-axis and toward the closed end 102. The feeding portion 322 is coupled to the feeding element 31. The coupling portion 323, the radiating branch 321, and the feeding portion 322 form a T-shape. For example, the feeding element 31 can be a coaxial cable, and the radiating element 32 can be a metal sheet, a microstrip antenna, a metal wire, or other conductive material, but the present invention is not limited thereto.

[0066] See Figure 6 As shown, Figure 6 Schematic diagram of the first resonance path, the second resonance path, the third resonance path and the fourth resonance path of the first embodiment of the electronic device of the present invention. Figure 6 The projection of the slot of the metal housing and the antenna feed module on the XY plane is used as an example. The feed element 31 is coupled to the feed portion 322 to feed the radiating element 32, causing the radiating element 32 to excite the metal housing 1, forming an antenna radiating portion in the area surrounding the slot 10 and generating multiple resonant modes with different frequency ranges. For example, the feed circuit 3 is used to excite the metal housing 1, causing the metal housing 1 and the radiating element 32 to generate a first resonant path P1 with a first resonant mode. Alternatively, the feed circuit 3 is used to excite the metal housing 1, causing the coupling portion 323 to couple with the metal housing 1, generating a coupling capacitor. This coupling capacitor forms an electrical path across the coupling gap, generating a second resonant path P2 with a second resonant mode. Furthermore, the feed circuit 3 can also excite the metal housing 1, causing the coupling portion 323 to couple with the metal housing 1, generating a third resonant path P3 with a third resonant mode and a fourth resonant path P4 with a fourth resonant mode. It is worth mentioning that the first resonance mode, the second resonance mode, the third resonance mode and the fourth resonance mode are different from each other.

[0067] Continue reading Figure 6As shown, the first resonant path P1, the second resonant path P2, the third resonant path P3, and the fourth resonant path P4 are further described in detail. Prior to this, the slot 10 is further defined. The metal shell 1 has a first slot wall 11, a second slot wall 12, a third slot wall 13, a fourth slot wall 14, and a fifth slot wall 15 at the location where the slot 10 is formed. The first slot wall 11 is parallel to the fifth slot wall 15, the second slot wall 12 is perpendicular to the first slot wall 11 and parallel to the fourth slot wall 14, and the third slot wall 13 is parallel to the first slot wall 11 and connects the second slot wall 12 and the fourth slot wall 14. Figure 6 The diagram shows the path of the first resonant path P1, which includes a first section, a second section, a third section, and a fourth section. The first section is a horizontal line segment from the vertical projection 311 of the feedthrough 31 on the metal housing 1 to the third slot wall 13. The second section is a vertical line segment the same length as the third slot wall 13. The third section is a horizontal line segment from a coupling point 323P where the coupling portion 323 is coupled to the metal housing 1 to the third slot wall 13. The fourth section is a horizontal line segment from the coupling point 323P to the fifth slot wall 15. The first resonant path P1 does not pass through the radiating element 32. It is worth noting that the path length of the first resonant path P1 is approximately 0.25 wavelengths of 2400 MHz, and the first resonant mode contributed by the first resonant path P1 covers a first operating frequency band between 2400 MHz and 2484 MHz.

[0068] Continue reading Figure 6 As shown, the second resonant path P2 includes the first, second, and third segments described above, as well as the vertical line segment from the coupling point 323P to the vertical projection position 311 on the metal housing 1. The third resonant path P3 includes the vertical line segment from the coupling point 323P to the vertical projection position 311 of the feed element 31 on the metal housing 1, as well as the fourth segment described above. The fourth resonant path P4 includes the vertical line segment from the vertical projection position 311 of the feed element 31 on the metal housing 1 to the radiating branch 321, as well as the radiating branch 321 itself. The second, third, and fourth resonant modes contributed by the second, third, and fourth resonant paths P2, P3, and P4 cover a second operating frequency band ranging from 5150 MHz to 7125 MHz.

[0069] As can be seen from the above, the difference between the first resonant path P1 and the second resonant path P2, the third resonant path P3, and the fourth resonant path P4 is that when the antenna operating frequency is lower than 2500 MHz, there is no coupling between the coupling portion 323 and the metal housing 1. Therefore, the coupling portion 323 and the metal housing 1 are equivalent to an open circuit state, and the feeding circuit 3 excites the metal housing 1 to generate the first resonant path P1. When the antenna operating frequency is higher than 5000 MHz, the coupling portion 323 and the metal housing 1 are coupled to form an electrical path. Therefore, the coupling portion 323 and the metal housing 1 are equivalent to a short circuit state. The feeding circuit 3 excites the metal housing 1 to generate the second resonant path P2, the third resonant path P3, and the fourth resonant path P4.

[0070] For example, the center frequency of the second resonant mode is 5150 MHz, the center frequency of the third resonant mode is 6200 MHz, and the center frequency of the fourth resonant mode is 6800 MHz. Therefore, the path length of the second resonant path P2 is approximately 0.5 times the wavelength of 5150 MHz, the path length of the third resonant path P3 is approximately 0.25 times the wavelength of 6200 MHz, and the path length of the fourth resonant path P4 is approximately 0.25 times the wavelength of 6800 MHz, but the present invention is not limited to this. In other words, the second resonant path P2, the second resonant path P3, and the fourth resonant path P4 will adjust their corresponding center frequencies and frequency ranges due to changes in their path lengths.

[0071] In accordance with the above, please refer to Figure 4 and Figure 5 As shown, the slot 10 defines a first axis L1 and a second axis L2 based on its extension direction. The first axis L1 is parallel to the extension direction of the slot 10 toward the open end 101, and the second axis L2 is parallel to the extension direction of the slot 10 toward the closed end 102. The first axis L1 and the second axis L2 intersect at an intersection point A, and the distance between the closed end 102 and the intersection point A is less than or equal to 0.25 times the wavelength corresponding to the lowest operating frequency in the first operating frequency band (2400MHz to 2484MHz). As a result, the slot antenna structure designed by the present invention can have a much smaller size of the slot 10 than the slot size in the prior art. For example, the slot length of a conventional slot antenna structure is about 45mm, while the slot 10 length of the slot antenna structure designed by the present invention can be reduced to about 10mm to 13mm.

[0072] In addition, if Figure 5As shown, in this embodiment, the vertical projection of the radiating branch 321 on the metal housing 1 defines a centerline L3. A first predetermined distance H1 exists between the centerline L3 and the fourth slot wall 14, and a second predetermined distance H2 exists between the centerline L3 and the second slot wall 12. The first predetermined distance H1 is less than the second predetermined distance H2. Furthermore, a third predetermined distance H3 exists between the vertical projection position 311 of the feedthrough 31 on the metal housing 1 and the third slot wall 13, and a fourth predetermined distance H4 exists between the vertical projection position 311 of the feedthrough 31 on the metal housing 1 and the fifth slot wall 15. The third predetermined distance H3 is greater than the fourth predetermined distance H4. Thus, the present invention adjusts the relative position of the radiating element 32 in the antenna feed module within the slot 10 to change the path lengths of the first resonant path P1, the second resonant path P2, the second resonant path P3, and the fourth resonant path P4, thereby adjusting the center frequencies and frequency ranges corresponding to the first resonant mode, the second resonant mode, the third resonant mode, and the fourth resonant mode to meet different broadband requirements.

[0073] It's also worth noting that, in the present invention, radiating branch 321 extends toward closed end 102 to reduce the overall antenna structure's radiated power and prevent excessively high specific absorption rate (SAR) values. However, the present invention is not limited to this. In other embodiments, radiating branch 321 may extend away from closed end 102, that is, toward open end 101, to increase the overall antenna structure's gain and radiation efficiency.

[0074] [Second embodiment]

[0075] See Figure 7 and Figure 8 As shown, Figure 7 Schematic diagram of the first resonant path, the second resonant path, the third resonant path and the fourth resonant path of the second embodiment of the electronic device of the present invention, which uses the projection of the slot of the metal shell and the antenna feeding module on the XY plane as an example for explanation. Figure 8 FIG2 is a schematic diagram of a radiation element, a capacitor element and a connecting element of a second embodiment of an electronic device of the present invention. Figure 7 and Figure 6 Comparison shows that the difference between the second embodiment and the first embodiment lies in the architecture of the antenna structure. In addition, it should be noted that the other structures of the electronic device D provided in the second embodiment are similar to those of the first embodiment and will not be repeated here.

[0076] As described above, in this embodiment, the metal shell 1 is provided with a slot 10, and the slot 10 includes an open end 101 and a closed end 102. The feeding circuit includes a feeding component 31, a radiating component 32, a capacitor element 33 and a connecting component 34, and the capacitor element 33 and the connecting component 34 together constitute a switching element S. In the present invention, the capacitance value of the capacitor element 33 is less than or equal to 0.4pF. In addition, for example, the capacitor element 33 may be, for example but not limited to, an SMT capacitor, and the connecting component 34 may be, for example but not limited to, a pogo pin. By Figure 8 It can be seen that in this embodiment, the capacitor element 33 is coupled between the connector 34 and the radiation branch 321 , and one end of the connector 34 is coupled to the capacitor element 33 , while the other end of the connector 34 contacts the metal housing 1 .

[0077] As described above, the feeding element 31 feeds power to the radiating element 32 by coupling the feeding portion 322 , so that the radiating element 32 excites the metal shell 1 , so that the metal shell 1 forms an antenna radiating portion in the peripheral area of the slot 10 and generates multiple resonant modes with multiple different frequency ranges.

[0078] Continue reading Figure 7 As shown, comparison Figure 7 and Figure 6 As can be seen, the first resonant path P1, second resonant path P2, third resonant path P3, and fourth resonant path P4 in the second embodiment are substantially identical in path composition to those in the first embodiment, with only slight differences in the path definitions of the third and fourth segments. Specifically, in this embodiment, the first resonant path P1 comprises a first segment, a second segment, a third segment, and a fourth segment. The path definitions of the first and second segments are identical to those in the first embodiment and are not further described here. The third segment is a horizontal line segment extending from a contact point 341 where the connector 34 contacts the metal housing 1 to the third slot wall 13. The fourth segment is a horizontal line segment extending from the contact point 341 to the fifth slot wall 15.

[0079] As mentioned above, the second resonant path P2 includes the first, second, and third segments, as well as the vertical segment from the contact point 341 to the vertical projection 311 of the feedthrough 31 on the metal housing 1. The third resonant path P3 includes the vertical segment from the contact point 341 to the vertical projection 311 of the feedthrough 31 on the metal housing 1, as well as the fourth segment. The fourth resonant path P4 includes the vertical segment from the vertical projection 311 of the feedthrough 31 on the metal housing 1 to the radiating branch 321, as well as the radiating branch 321 itself.

[0080] As can be seen from the above, the difference between the first resonant path P1 and the second resonant path P2, the third resonant path P3, and the fourth resonant path P4 is that when the antenna operating frequency is lower than 2500 MHz, the capacitor element 33 is in an open-circuit state, and the feeding circuit 3 excites the metal housing 1 to generate the first resonant path P1. When the antenna operating frequency is higher than 5000 MHz, the capacitor element 33 is equivalent to a short-circuit state, and the feeding circuit 3 excites the metal housing 1 to generate the second resonant path P2, the third resonant path P3, and the fourth resonant path P4. In addition, the second resonant path P2 and the second resonant path P3 both include the connector 34 and the capacitor element 33.

[0081] [Third embodiment]

[0082] See Figure 9 As shown, Figure 9 This is a schematic diagram of the first resonance path, the second resonance path, the third resonance path, and the fourth resonance path of the third embodiment of the electronic device of the present invention, which uses the projection of the slot of the metal shell and the antenna feeding module on the XY plane as an example. Figure 9 and Figure 7 A comparison reveals that the difference between the third embodiment and the second embodiment lies in the antenna structure architecture. More specifically, the difference lies in the structure of the feed circuit 3. In other words, the electronic device D provided by the present invention can have various antenna structures. It should be noted that the other structures of the electronic device D provided by the third embodiment are similar to those of the first and second embodiments, and will not be further described here.

[0083] As described above, in this embodiment, the capacitor element 33 is electrically connected to the radiating element 32, and the connector 34 is coupled between the radiating element 32 and the metal housing 1. Specifically, in this embodiment, the capacitor element 33 is coupled between the feeding element 31 and the feeding portion 322, while one end of the connector 34 is coupled to the radiating branch 321, and the other end of the connector 34 contacts the metal housing 1.

[0084] Continue reading Figure 9 As shown, comparison Figure 9 and Figure 7 As can be seen, the third embodiment shares the same paths as the second embodiment, with the second resonant path P2, the third resonant path P3, and the fourth resonant path P4. Only the composition of the first resonant path P1 differs. Specifically, in this embodiment, the first resonant path P1 includes a first segment, a second segment, a third segment, a vertical segment from a contact point 341 of the connector 34 on the metal housing 1 to the radiating branch 321, and the radiating branch 321. The path definitions of the first segment, the second segment, and the third segment are the same as those of the second embodiment and are not further described.

[0085] It is worth mentioning that, continue to compare Figure 9 and Figure 7 It can be seen that the capacitor element 33 in the second embodiment is coupled between the connecting member 34 and the radiation branch 321 (see Figure 7 ), and the capacitor element 33 in this embodiment is coupled between the feeding element 31 and the feeding portion 322 (see Figure 9 ), that is, the capacitor element 33 in the second embodiment and the present embodiment is located at different positions in the feeding circuit 3. Therefore, the first resonant path P1 of the second embodiment is also different from the first resonant path P1 of the present embodiment. In brief, the first resonant path P1 of the second embodiment extends to the fifth slot wall 15, while the first resonant path P1 of the present embodiment extends to an open-circuit end 3211 of the radiating branch. When the first resonant path P1 extends to the fifth slot wall 15, it can improve the antenna gain (Gain) and radiation efficiency of the first operating frequency band between 2400MHz and 2484MHz covered by the first resonant mode generated by the antenna structure; and when the first resonant path P1 extends to an open-circuit end 3211 of the radiating branch, it can reduce the radiation power of the entire antenna structure to avoid an excessively high SAR value.

[0086] See Figure 10 As shown, Figure 10 The schematic diagram of the antenna structure of the present invention shows the performance of the main antenna. Figure 10 It can be seen that through the antenna structure design of the present invention, the frequency range of the first resonance mode (2400MHz to 2484MHz) and the frequency range jointly covered by the second resonance mode, the third resonance mode and the fourth resonance mode (5150MHz to 7125MHz) can meet user needs.

[0087] [Beneficial Effects of Embodiments]

[0088] One of the beneficial effects of the present invention is that the electronic device and antenna feeding module provided by the present invention can utilize the technical solutions of "the feeding circuit 3 is used to excite the metal shell 1, so that the coupling part 323 and the metal shell 1 are coupled with each other to form an electrical path" and "the capacitor element 33 is electrically connected to the radiating element 32, and the connecting element 34 is coupled between the radiating element 32 and the metal shell 1" to utilize the different characteristics of the coupling capacitor or the physical capacitor element at low frequency / high frequency, so that the slot 10 of the metal shell 1 can reorganize resonant paths of different lengths to meet the broadband operation requirements of the low frequency / high frequency bands.

[0089] Furthermore, the present invention adopts the design of the slot 10 (the distance between the closed end 102 and the intersection point A is less than or equal to 0.25 times the wavelength corresponding to the lowest operating frequency in the first operating frequency band covered by the first resonance mode, see Figure 4 ), so that the size of the slot 10 designed in the present invention can be much smaller than that of the slot in the prior art.

[0090] Furthermore, the present invention adjusts the relative position of the radiating element 32 in the antenna feed module within the slot 10 (first predetermined distance H1, second predetermined distance H2, third predetermined distance H3, and fourth predetermined distance H4) to change the path lengths of the first resonant path P1, second resonant path P2, second resonant path P3, and fourth resonant path P4. This adjusts the center frequencies and frequency ranges corresponding to the first resonant mode, second resonant mode, third resonant mode, and fourth resonant mode, respectively, to meet different broadband requirements. Furthermore, the present invention can also improve the gain and radiation efficiency of the overall antenna structure or prevent excessively high SAR values by adjusting the extension direction of the radiating branch 321.

[0091] The contents disclosed above are only preferred feasible embodiments of the present invention and do not limit the scope of the claims of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention description and drawings are included in the scope of the claims of the present invention.

Claims

1. An electronic device, comprising: A metal shell having a slot formed therein, the slot including an open end and a closed end; a carrier plate, the carrier plate being disposed on the metal housing; as well as a feeding circuit disposed in the carrier board, comprising a feeding element and a radiating element, wherein a vertical projection of the radiating element on the metal housing is completely located within the slot, the radiating element and the metal housing are separated from each other and do not contact each other, the radiating element comprising a coupling portion, a radiating branch, and a feeding portion, the radiating branch being located between the coupling portion and the feeding portion, the coupling portion being closer to the metal housing than the radiating branch, the feeding portion being coupled to the feeding element, a coupling gap being defined between the coupling portion and the metal housing, and the width of the coupling gap being less than 0.5 times the width of the slot; The feeding circuit is used to excite the metal shell, so that the metal shell and the radiating element generate a first resonance path having a first resonance mode; The feeding circuit is used to excite the metal shell so that the coupling portion and the metal shell are coupled to form an electrical path and generate a second resonance path with a second resonance mode, and the first resonance mode is different from the second resonance mode.

2. The electronic device according to claim 1, wherein The slot defines a first axis and a second axis according to its extension direction, the first axis is parallel to the extension direction of the slot toward the open end, and the second axis is parallel to the extension direction of the slot toward the closed end, the first axis and the second axis intersect at an intersection point, and the distance between the closed end and the intersection point is less than or equal to 0.25 times the wavelength corresponding to the lowest operating frequency in a first operating frequency band.

3. The electronic device according to claim 1, wherein: The extension direction of the radiation branch is toward the closed end.

4. The electronic device according to claim 1, wherein: The extension direction of the radiating branch is away from the closed end.

5. The electronic device according to claim 1, wherein The metal shell has a first slot wall, a second slot wall, a third slot wall, a fourth slot wall and a fifth slot wall at the position where the slot is formed, the first slot wall is parallel to the fifth slot wall, the second slot wall is parallel to the fourth slot wall, the third slot wall is connected between the second slot wall and the fourth slot wall, and the vertical projection of the radiation branch on the metal shell defines a center line, a first predetermined distance is between the center line and the fourth slot wall, a second predetermined distance is between the center line and the second slot wall, and the first predetermined distance is smaller than the second predetermined distance.

6. The electronic device according to claim 5, wherein: A third predetermined distance is defined between a vertical projection position of the feed-in element on the metal shell and the third slot wall, and a fourth predetermined distance is defined between a vertical projection position of the feed-in element on the metal shell and the fifth slot wall, and the third predetermined distance is greater than the fourth predetermined distance.

7. The electronic device according to claim 5, wherein: The metal shell further includes a first section, a second section, a third section, and a fourth section. The first section is a horizontal line segment from a vertical projection position of the feed-in element on the metal shell to the third slot wall. The second section is a vertical line segment having the same length as the third slot wall. The third section is a horizontal line segment from a coupling point where the coupling portion is coupled to the metal shell to the third slot wall. The fourth section is a horizontal line segment from the coupling point to the fifth slot wall. The first resonant path includes the first section, the second section, the third section, and the fourth section; the second resonant path includes the first section, the second section, the third section, and a vertical line segment from the coupling point to the vertical projection position of the feeding element on the metal housing; The feeding circuit is configured to excite the metal housing, causing the coupling portion and the metal housing to couple with each other, thereby further generating a third resonant path having a third resonant mode and a fourth resonant path having a fourth resonant mode. The third resonant path includes a vertical segment from the coupling point to a vertical projection position of the feeding element on the metal housing, and the fourth segment. The fourth resonant path includes a vertical segment from the vertical projection position of the feeding element on the metal housing to the radiating branch, and the radiating branch.

8. An antenna feed module, the antenna feed module being disposed in a metal housing having a slot, the antenna feed module comprising: a carrier plate disposed in the metal housing; as well as A radiating element is disposed on the carrier board, a vertical projection of the radiating element on the metal shell is completely located within the slot, the radiating element and the metal shell are separated from each other and do not contact each other, the radiating element includes a coupling portion, a radiating branch and a feeding portion, the radiating branch is located between the coupling portion and the feeding portion, the feeding portion is used to couple to a feeding element, a coupling gap is defined between the coupling portion and the metal shell, and the width of the coupling gap is less than 0.5 times the width of the slot.

9. An electronic device, comprising: A metal shell having a slot formed therein, the slot including an open end and a closed end; a carrier plate disposed in the metal housing; as well as a feeding circuit disposed in the carrier, the feeding circuit comprising a feeding element, a radiating element, a capacitor element, and a connecting element, wherein a vertical projection of the radiating element on the metal housing at least partially overlaps with the slot, the radiating element comprising a radiating branch and a feeding portion, the feeding portion being coupled to the feeding element, the capacitor element being electrically connected to the radiating element, and the connecting element being coupled between the radiating element and the metal housing; The feed circuit is used to excite the metal shell, and the capacitor element forms an open-circuit state or a short-circuit state according to the high or low operating frequency of the antenna. When the capacitor element is in the open-circuit state, the metal shell and the radiating element generate a first resonant path having a first resonant mode; when the capacitor element is in the short-circuit state, the metal shell and the radiating element generate a second resonant path having a second resonant mode, and the first resonant mode is different from the second resonant mode.

10. The electronic device according to claim 9, wherein: The capacitor element is coupled between the feeding element and the feeding portion. One end of the connecting element is coupled to the radiation branch, and the other end of the connecting element contacts the metal shell.

11. The electronic device according to claim 10, wherein: The metal shell has a first slot wall, a second slot wall, a third slot wall, a fourth slot wall, and a fifth slot wall at a position where the slot is formed, wherein the first slot wall is parallel to the fifth slot wall, the second slot wall is parallel to the fourth slot wall, and the third slot wall is connected between the second slot wall and the fourth slot wall; The metal shell further includes a first section, a second section, a third section, and a fourth section. The first section is a horizontal line segment from the vertical projection position of the feed-in component on the metal shell to the third slot wall. The second section is a vertical line segment with the same length as the third slot wall. The third section is a horizontal line segment from a contact point of the connector on the metal shell to the third slot wall. The fourth section is a horizontal line segment from the contact point to the fifth slot wall. The first resonant path includes the first section, the second section, the third section, a vertical line segment from the contact point to the radiating branch, and the radiating branch; the second resonant path includes the first section, the second section, the third section, and a vertical line segment from the contact point to the vertical projection position of the feeding element on the metal shell; The feeding circuit is used to excite the metal shell to further generate a third resonant path having a third resonant mode and a fourth resonant path having a fourth resonant mode. The third resonant path includes a vertical line segment from the contact point to the vertical projection position of the feeding element on the metal shell and the fourth segment. The fourth resonant path includes a vertical line segment from the vertical projection position of the feeding element on the metal shell to the radiating branch and the radiating branch.

12. The electronic device according to claim 9, wherein: The capacitor element is coupled between the connector and the radiation branch. One end of the connector is coupled to the capacitor element, and the other end of the connector contacts the metal shell.

13. The electronic device according to claim 12, in, The metal shell has a first slot wall, a second slot wall, a third slot wall, a fourth slot wall, and a fifth slot wall at a position where the slot is formed, wherein the first slot wall is parallel to the fifth slot wall, the second slot wall is parallel to the fourth slot wall, and the third slot wall is connected between the second slot wall and the fourth slot wall; The metal shell further includes a first section, a second section, a third section, and a fourth section. The first section is a horizontal line segment from the vertical projection position of the feed-in component on the metal shell to the third slot wall. The second section is a vertical line segment with the same length as the third slot wall. The third section is a horizontal line segment from a contact point of the connector on the metal shell to the third slot wall. The fourth section is a horizontal line segment from the contact point to the fifth slot wall. The first resonant path includes the first section, the second section, the third section, and the fourth section; the second resonant path includes the first section, the second section, the third section, and a vertical line segment from the contact point to the vertical projection position of the feed-in element on the metal housing; The feeding circuit is used to excite the metal shell to further generate a third resonant path having a third resonant mode and a fourth resonant path having a fourth resonant mode. The third resonant path includes a vertical line segment from the contact point to the vertical projection position of the feeding element on the metal shell and the fourth segment. The fourth resonant path includes a vertical line segment from the vertical projection position of the feeding element on the metal shell to the radiating branch and the radiating branch.

14. The electronic device according to claim 9, wherein: The capacitance value of the capacitor element is less than or equal to 0.4 pF.

15. The electronic device according to claim 9, wherein The slot defines a first axis and a second axis according to its extension direction, the first axis is parallel to the extension direction of the slot toward the open end, and the second axis is parallel to the extension direction of the slot toward the closed end, the first axis and the second axis intersect at an intersection point, and the distance between the closed end and the intersection point is less than or equal to 0.25 times the wavelength corresponding to the lowest operating frequency in a first operating frequency band.

16. The electronic device according to claim 9, wherein: The metal shell has a first slot wall, a second slot wall, a third slot wall, a fourth slot wall and a fifth slot wall at the position where the slot is formed, the first slot wall is parallel to the fifth slot wall, the second slot wall is parallel to the fourth slot wall, the third slot wall is connected between the second slot wall and the fourth slot wall, and the vertical projection of the radiation branch on the metal shell defines a center line, a first predetermined distance is between the center line and the fourth slot wall, a second predetermined distance is between the center line and the second slot wall, and the first predetermined distance is smaller than the second predetermined distance.

17. The electronic device according to claim 16, wherein: A third predetermined distance is defined between a vertical projection position of the feed-in element on the metal shell and the third slot wall, and a fourth predetermined distance is defined between a vertical projection position of the feed-in element on the metal shell and the fifth slot wall, and the third predetermined distance is greater than the fourth predetermined distance.

18. An antenna feed module, the antenna feed module being disposed in a metal housing having a slot, the antenna feed module comprising: a carrier plate, the carrier plate being disposed on the metal housing; a radiating element disposed on the carrier, wherein a vertical projection of the radiating element on the metal housing at least partially overlaps with the slot, the radiating element comprising a radiating branch and a feeding portion, the feeding portion being configured to be coupled to a feeding element; a capacitor element electrically connected to the radiation element; as well as a connecting member coupled between the radiating member and the metal housing; The feeding element is coupled to the feeding portion to feed power to the radiating element, so that the radiating element excites the metal shell, and the capacitor element forms an open-circuit state or a short-circuit state according to the level of the operating frequency generated by the feeding element feeding power to the radiating element. When the capacitor element is in the open-circuit state, the metal shell and the radiating element generate a first resonant path having a first resonant mode; when the capacitor element is in the short-circuit state, the metal shell and the radiating element generate a second resonant path having a second resonant mode, and the first resonant mode is different from the second resonant mode.

19. The antenna feed module according to claim 18, wherein: The capacitor element is coupled between the feeding element and the feeding portion. One end of the connecting element is coupled to the radiation branch, and the other end of the connecting element contacts the metal shell.

20. The antenna feed module according to claim 18, wherein: The capacitor element is coupled between the connector and the radiation branch. One end of the connector is coupled to the capacitor element, and the other end of the connector contacts the metal shell.

21. The antenna feed module according to claim 18, wherein: The capacitance value of the capacitor element is less than or equal to 0.4 pF.

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