TW202032851A - Mobile device and antenna module - Google Patents

Abstract

An antenna module includes a nonconductive holder, an antenna element, and a noise suppression element. The nonconductive holder has a first surface and a second surface which are opposite to each other. A plurality of openings are formed through the first surface and the second surface of the nonconductive holder. The antenna element is disposed on the first surface of the nonconductive holder. The antenna element is configured to cover a low-frequency band and a high-frequency band. The noise suppression element is disposed on the second surface of the nonconductive holder. The noise suppression element is configured to reduce the interference caused by electromagnetic waves of the low-frequency band of the antenna element.

Description

Mobile devices and antenna modules

The present invention relates to a mobile device (Mobile Device), and particularly relates to a mobile device and its antenna module (Antenna Module).

With the development of mobile communication technology, mobile devices have become more and more common in recent years, such as portable computers, mobile phones, multimedia players and other portable electronic devices with mixed functions. In order to meet people's needs, mobile devices usually have wireless communication functions. Some cover long-distance wireless communication ranges. For example, mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and the 700MHz, 850 MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz, and 2500MHz frequency bands used for communication. Others cover short-distance wireless communication ranges, such as: Wi-Fi and Bluetooth systems use 2.4GHz, 5.2GHz and 5.8GHz frequency bands for communication.

Antenna is an indispensable component in mobile devices that support wireless communication. However, because the internal space of the mobile device is often extremely limited, it may happen that the antenna and the air outlet of the heat dissipation module overlap each other, which greatly reduces the heat dissipation efficiency of the mobile device. In view of this, it is necessary to propose a brand-new solution that takes into account the dual goals of improving heat dissipation efficiency and suppressing electromagnetic noise.

In a preferred embodiment, the present invention provides a mobile device that includes: a frame; a back cover; a battery module; a main circuit board adjacent to the battery module; a fan module adjacent to the main circuit Board; and an antenna module adjacent to the fan module, wherein the antenna module includes; a non-conductor supporting element having a first surface and a second surface opposed to each other, wherein a plurality of openings are formed and penetrated Pass through the first surface and the second surface of the non-conductor support element; an antenna element disposed on the first surface of the non-conductor support element and used to cover a low frequency band and a high frequency band; and a noise suppression The element is arranged on the second surface of the non-conductor supporting element, wherein the noise suppression element is used to prevent the electromagnetic wave of the low frequency band of the antenna element from causing interference to the main circuit board; wherein the battery module and the main circuit The board, the fan module, and the antenna module are all arranged between the frame and the back cover.

In some embodiments, the fan module is used to generate an air flow, and the air flow passes through the openings of the non-conductor support element.

In some embodiments, the antenna element has a vertical projection on the second surface of the non-conductor support element, and the vertical projection at least partially overlaps the noise suppression element.

In some embodiments, the low frequency band is between 2400 MHz and 2500 MHz, and the high frequency band is between 5150 MHz and 5850 MHz.

In some embodiments, the first metal part has an L shape, a straight strip shape, a U shape, or a meander shape.

In some embodiments, the noise suppression element includes at least a first metal part, and if the noise suppression element is coupled to a ground potential, the length of the first metal part is approximately equal to 0.25 times the low frequency band wavelength.

In some embodiments, the noise suppression element further includes a second metal part, and the length of the second metal part is approximately equal to 0.25 times the wavelength of the high frequency band.

In some embodiments, the second metal part presents an L-shape.

In some embodiments, the noise suppression element includes at least a first metal part, and if the noise suppression element is in a floating state, the length of the first metal part is approximately equal to 0.5 times the wavelength of the low frequency band.

In another preferred embodiment, the present invention provides an antenna module including: a non-conductor support element having a first surface and a second surface opposite to each other, wherein a plurality of openings are formed and penetrate the non-conductor The first surface and the second surface of the supporting element; an antenna element arranged on the first surface of the non-conductor supporting element and used to cover a low frequency band and a high frequency band; and a noise suppression element arranged On the second surface of the non-conductor supporting element, the noise suppression element is used to avoid interference caused by electromagnetic waves in the low frequency band of the antenna element.

In order to make the purpose, features and advantages of the present invention more comprehensible, specific embodiments of the present invention are listed below, with the accompanying drawings, and detailed descriptions are as follows.

Certain words are used in the specification and the scope of the patent application to refer to specific elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and the scope of patent application do not use differences in names as a way to distinguish elements, but use differences in functions of elements as a criterion. The terms "including" and "including" mentioned in the entire specification and the scope of the patent application are open-ended terms, so they should be interpreted as "including but not limited to". The term "approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and achieve the basic technical effect. In addition, the term "coupling" includes any direct and indirect electrical connection means in this specification. Therefore, if it is described that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connecting means. Two devices.

FIG. 1 is a cross-sectional view of a mobile device 100 according to an embodiment of the invention. For example, the mobile device 100 may be a smart phone (Smart Phone), a tablet computer (Tablet Computer), or a notebook computer (Notebook Computer). In the embodiment of Figure 1, the mobile device 100 includes: a frame 111, a back cover 112, a battery module 113, and a main circuit board 114 , A fan module (Fan Module) 115, and an antenna module (Antenna Module) 120. It must be understood that, although not shown in Figure 1, the mobile device 100 may further include other components, such as a display (Display Device), a speaker (Speaker), a touch control module (Touch Control Module), and A housing (Housing).

The frame 111 and the back cover 112 can be made of metal material or non-conductor material. The frame 111 can be a keyboard frame (Keyboard Frame) or a display frame (Display Frame), and a keyboard (Keyboard) or a display (Display Device) can be embedded in a hollow part of the frame 111. The back cover 112 is disposed relative to the frame 111 and can be used as a part of the casing of the mobile device 100. The bezel 111 and the back cover 112 can jointly enclose an internal design space of the mobile device 100. If the mobile device 100 is a notebook computer, the frame 111 and the back cover 112 can be respectively the "C part" and the "D part" commonly known in the field of notebook computers. The shape and style of the frame 111 and the back cover 112 are not particularly limited in the present invention.

The battery module 113 is used to provide power to the mobile device 100. The main circuit board 114 is adjacent to the battery module 113. The main circuit board 114 can be used to carry various electronic components, such as integrated circuit (IC) components. The fan module 115 is adjacent to the main circuit board 114. The fan module 115 can be used to generate an air flow 118 to take away the heat generated by the mobile device 100, which helps to improve the heat dissipation efficiency of the mobile device 100 (Heat Dissipation Efficiency). The antenna module 120 is adjacent to the fan module 115. The antenna module 120 can be used to transmit or receive electromagnetic signals so that the mobile device 100 can support the function of wireless communication. It must be noted that the term "adjacent" or "adjacent" in this specification can mean that the distance between the corresponding two elements is less than a predetermined distance (for example: 10mm or less), and it can also include the two elements directly contacting each other. Situation (that is, the aforementioned spacing is shortened to 0). In the mobile device 100, the battery module 113, the main circuit board 114, the fan module 115, and the antenna module 120 are all disposed between the frame 111 and the back cover 112. In detail, the main circuit board 114 may be between the battery module 113 and the fan module 115, and the fan module 115 may be between the main circuit board 114 and the antenna module 120, but it is not limited to this.

FIG. 2A is a perspective view of the antenna module 120 according to an embodiment of the invention. FIG. 2B is a back view of the antenna module 120 according to an embodiment of the invention. Please refer to Figures 2A and 2B together. In the embodiment shown in FIGS. 2A and 2B, the antenna module 120 includes a nonconductive holder 130, an antenna element (Antenna Element) 139, and a noise suppression element (Noise Suppression Element) 140. The non-conductor supporting element 130 may substantially exhibit a rectangular parallelepiped or a cube. The non-conductor support element 130 has a first surface E1 and a second surface E2 opposite to each other. The second surface E2 of the non-conductor support element 130 is adjacent to and faces the fan module 115. The thickness H1 of the non-conductor supporting element 130 (that is, the distance between the first surface E1 and the second surface E2) may be less than 10 mm. A plurality of openings 131, 132, 133, 134, 135 are formed and penetrate the first surface E1 and the second surface E2 of the non-conductor supporting element 130. The aforementioned openings 131, 132, 133, 134, 135 can be completely separated from each other. The number and shape of the aforementioned openings 131, 132, 133, 134, 135 are not particularly limited in the present invention. For example, the aforementioned openings 131, 132, 133, 134, 135 can each be a square opening, a circular opening, an oval opening, or a triangular opening, and the aforementioned openings 131, 132 The total number of, 133, 134, 135 can be 3, 5, 7, 10, or more. In some embodiments, the aforementioned openings 131, 132, 133, 134, 135 are substantially arranged on the same straight line. It must be noted that when the fan module 115 generates an airflow 118 (usually a hot airflow), the airflow 118 can be transmitted outward through the openings 131, 132, 133, 134, 135 of the non-conductor support element 130. It will not be blocked by the antenna module 120.

The antenna element 139 is disposed on the first surface E1 of the non-conductor support element 130. The antenna element 139 can be a monopole antenna (Monopole Antenna), a dipole antenna (Dipole Antenna), a dual-branch antenna (Dual-Branch Antenna), a patch antenna (Patch Antenna), or a plane inverted F-shaped Antenna (Planar Inverted F Antenna, PIFA), but it is not limited to this. For example, the antenna element 139 may have a feeding point FP coupled to a signal source (not shown), and may have a substantially T-shape. The antenna element 139 can further extend and at least partially surround any one or more of the aforementioned openings 131, 132, 133, 134, and 135. In some embodiments, the antenna element 139 is used to cover a low-frequency band (Low-Frequency Band) and a high-frequency band (High-Frequency Band), where the low-frequency band can be between 2400MHz and 2500MHz, and the high-frequency band Can be between 5150MHz to 5850MHz. Therefore, the antenna element 139 can at least support WLAN (Wireless Local Area Networks) 2.4GHz/5GHz dual-band operation.

The noise suppression element 140 includes at least a first metal element (Metal Element) 150 and is disposed on the second surface E2 of the non-conductor support element 130. That is, the noise suppression component 140 is adjacent to and faces the fan module 115. The shape of the first metal part 150 is not particularly limited in the present invention. For example, the first metal portion 150 may extend and at least partially surround any one or more of the aforementioned openings 131, 132, 133, 134, and 135. The first metal part 150 has a first end 151 and a second end 152, wherein the length LA of the first metal part 150 (that is, the length LA from the first end 151 to the second end 152) is approximately equal to the antenna element 0.25 or 0.5 times the wavelength (λ/4 or λ/2) of the low frequency band of 139. According to the actual measurement results, under the aforementioned length conditions, the noise suppression element 140 can prevent the electromagnetic waves of the antenna element 139 from causing interference to the main circuit board 114 (especially low-frequency electromagnetic waves), so as to improve the electromagnetic compatibility of the mobile device 100 ( Electromagnetic Compatibility, EMC). In some embodiments, the antenna element 139 has a vertical projection (Vertical Projection) on the second surface E2 of the non-conductor support element 130, and the vertical projection is at least part of the first metal portion 150 of the noise suppression element 140 Overlap or completely overlap to enhance the shielding effect of the noise suppression component 140.

Under the design of the present invention, the antenna module 120 can be appropriately integrated with the fan module 115 to save the internal design space of the mobile device 100. In detail, the antenna element 139 of the antenna module 120 enables the mobile device 100 to support the wireless communication function. The non-conductor support element 130 of the antenna module 120 and its openings 131, 132, 133, 134, 135 can help the fan module 115 to eliminate the high-temperature air flow 118. In addition, the noise suppression element 140 of the antenna module 120 can further protect the main circuit board 114 from the electromagnetic waves of the antenna element 139. Based on the above advantages, in other embodiments, the antenna module 120 can also be designed and used separately, and does not have to be installed inside the mobile device 100.

FIG. 3 is a cross-sectional view of a mobile device 300 according to another embodiment of the invention. In the embodiment of FIG. 3, the mobile device 300 is a notebook computer, which further includes an upper cover 310 and a hinge element 320, and the first surface E1 of the aforementioned non-conductor support element 130 It is adjacent to the rotating shaft element 320 of the notebook computer, so that the antenna element 139 can easily transmit or receive electromagnetic waves outward. The remaining features of the mobile device 300 in Fig. 3 are similar to those of the mobile device 100 in Fig. 1. Therefore, both embodiments can achieve similar operating effects.

The following embodiments will introduce various detailed configurations (Configuration) of the noise suppression element 140 in detail. It must be understood that these drawings and descriptions are only examples and are not used to limit the scope of the present invention.

FIG. 4A shows a back view of the antenna module 421 according to an embodiment of the invention. In the embodiment shown in FIG. 4A, a noise suppression element 441 of the antenna module 421 is coupled to a ground potential (Ground Voltage) VSS. In detail, the noise suppression element 441 includes a first metal part 450 and a second metal part 460, wherein the combination of the first metal part 450 and the second metal part 460 may substantially present a T-shape. The first metal part 450 may substantially exhibit an L shape. The first metal part 450 has a first end 451 and a second end 452. The first end 451 of the first metal part 450 is coupled to the ground potential VSS, and the second end 452 of the first metal part 450 is a Open End. The second metal part 460 may also be substantially L-shaped. The second metal part 460 has a first end 461 and a second end 462. The first end 461 of the second metal part 460 is coupled to the ground potential VSS, and the second end 462 of the second metal part 460 is a The open end extends in a direction away from the second end 452 of the first metal part 450. The length L1 of the first metal part 450 (that is, the length L1 from the first end 451 to the second end 452) is approximately equal to 0.25 times the wavelength (λ/4) of the low frequency band of the antenna element 139. The length L2 of the second metal portion 460 (that is, the length L2 from the first end 461 to the second end 462) is approximately equal to 0.25 times the wavelength (λ/4) of the high frequency band of the antenna element 139. According to actual measurement results, under the aforementioned length condition, the noise suppression element 441 can simultaneously prevent the high and low frequency electromagnetic waves of the antenna element 139 from causing interference to the main circuit board 114.

FIG. 4B is a back view of the antenna module 422 according to another embodiment of the invention. A noise suppression element 442 of the antenna module 422 is coupled to the ground potential VSS. FIG. 4C is a back view of the antenna module 423 according to another embodiment of the invention. A noise suppression element 443 of the antenna module 423 is coupled to the ground potential VSS. FIG. 4D is a back view of the antenna module 424 according to another embodiment of the invention. A noise suppression element 444 of the antenna module 424 is coupled to the ground potential VSS. Figures 4B, 4C, and 4D can all be regarded as the slight changes in Figure 4A. The remaining features of the antenna modules 422, 423, and 424 in Figs. 4B, 4C, and 4D are similar to those of the antenna module 421 in Fig. 4A. Therefore, these embodiments can achieve similar operating effects.

FIG. 5A shows a back view of the antenna module 521 according to an embodiment of the invention. In the embodiment of FIG. 5A, a noise suppression element 541 of the antenna module 521 is coupled to the ground potential VSS. In detail, the noise suppression element 541 includes a first metal part 550. The first metal part 550 may substantially exhibit an L shape. The first metal part 550 has a first end 551 and a second end 552. The first end 551 of the first metal part 550 is coupled to the ground potential VSS, and the second end 552 of the first metal part 550 is a Open end. The length L1 of the first metal portion 550 (that is, the length L3 from the first end 551 to the second end 552) is approximately equal to 0.25 times the wavelength (λ/4) of the low frequency band of the antenna element 139. According to the actual measurement results, under the aforementioned length condition, the noise suppression element 541 can prevent the low-frequency electromagnetic waves of the antenna element 139 from causing interference to the main circuit board 114.

FIG. 5B is a back view of the antenna module 522 according to another embodiment of the invention. A noise suppression element 542 of the antenna module 522 is coupled to the ground potential VSS. FIG. 5C is a back view of the antenna module 523 according to another embodiment of the invention. A noise suppression element 543 of the antenna module 523 is coupled to the ground potential VSS. FIG. 5D is a back view of the antenna module 524 according to another embodiment of the invention. A noise suppression element 544 of the antenna module 524 is coupled to the ground potential VSS. FIG. 5E is a back view of the antenna module 525 according to another embodiment of the invention. A noise suppression element 545 of the antenna module 525 is coupled to the ground potential VSS. FIG. 5F is a back view of the antenna module 526 according to another embodiment of the invention. A noise suppression element 546 of the antenna module 526 is coupled to the ground potential VSS. FIG. 5G is a back view of the antenna module 527 according to another embodiment of the invention. A noise suppression element 547 of the antenna module 527 is coupled to the ground potential VSS. FIG. 5H is a back view of the antenna module 528 according to another embodiment of the invention. A noise suppression element 548 of the antenna module 528 is coupled to the ground potential VSS. Figures 5B, 5C, 5D, 5E, 5F, 5G, and 5H can all be regarded as the slight changes in Figure 5A. The remaining features of the antenna modules 522, 523, 524, 525, 526, 527, and 528 in Figures 5B, 5C, 5D, 5E, 5F, 5G, and 5H are similar to the antenna module 521 in Figure 5A, so these implementations Both cases can achieve similar operating effects.

FIG. 6A shows a back view of the antenna module 621 according to an embodiment of the invention. In the embodiment of FIG. 6A, a noise suppression element 641 of the antenna module 621 is in a floating state and is not coupled to the ground potential VSS. In detail, the noise suppression element 641 includes a first metal part 650. The first metal part 650 may substantially exhibit a straight strip shape. The first metal part 650 has a first end 651 and a second end 652, wherein the first end 651 and the second end 652 of the first metal part 650 are both open ends. The length L4 of the first metal part 650 (that is, the length L4 from the first end 651 to the second end 652) is approximately equal to 0.5 times the wavelength (λ/2) of the low frequency band of the antenna element 139. According to actual measurement results, under the aforementioned length condition, the noise suppression element 641 can prevent the low-frequency electromagnetic waves of the antenna element 139 from causing interference to the main circuit board 114. In other embodiments, the first metal portion 650 can also be changed to approximately present an L-shape, a U-shape, or a meandering shape (for example, an S-shape, an N-shape, or a Z-shape) instead of Affect the shielding effect of the noise suppression component 641.

FIG. 6B is a back view of the antenna module 622 according to another embodiment of the invention. A noise suppression element 642 of the antenna module 622 is in a floating state. FIG. 6C is a back view of the antenna module 623 according to another embodiment of the invention. The noise suppression element 643 of the antenna module 623 is in a floating state. FIG. 6D shows a back view of the antenna module 624 according to another embodiment of the invention. A noise suppression element 644 of the antenna module 624 is in a floating state. FIG. 6E is a back view of the antenna module 625 according to another embodiment of the invention. A noise suppression element 645 of the antenna module 625 is in a floating state. FIG. 6F is a back view of the antenna module 626 according to another embodiment of the invention. A noise suppression element 646 of the antenna module 626 is in a floating state. Figures 6B, 6C, 6D, 6E, and 6F can all be regarded as the slight changes in Figure 6A. The rest of the features of the antenna modules 622, 623, 624, 625, 626 in Figures 6B, 6C, 6D, 6E, and 6F are similar to those of the antenna module 621 in Figure 6A, so these embodiments can achieve similar operating effects. .

The present invention provides a novel mobile device and antenna module, which can effectively save the internal design space of the mobile device. Generally speaking, the present invention at least has multiple advantages such as improving communication quality, enhancing heat dissipation efficiency, and improving electromagnetic compatibility, so it is very suitable for application in various miniaturized mobile communication devices.

It should be noted that the above-mentioned component size, component shape, and frequency range are not the limiting conditions of the present invention. The antenna designer can adjust these settings according to different needs. The mobile device and antenna module of the present invention are not limited to the state shown in Figures 1-6. The present invention may only include any one or more of the features of any one or more of the embodiments in FIGS. 1-6. In other words, not all the features shown in the figures need to be implemented in the mobile device and antenna module of the present invention.

The ordinal numbers in this specification and the scope of the patent application, such as "first", "second", "third", etc., do not have a sequential relationship between each other, and they are only used to distinguish two having the same Different components of the name.

Although the present invention is disclosed as above in a preferred embodiment, it is not intended to limit the scope of the present invention. Anyone who is familiar with the art can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to those defined by the attached patent scope.

100, 300: Mobile device 111: Frame 112: Back cover 113: Battery module 114: Main circuit board 115: Fan module 118: Airflow 120, 421, 422, 423, 424, 521, 522, 523, 524, 525 , 526, 527, 528, 621, 622, 623, 624, 625, 626: antenna module 130: non-conductor support element 131, 132, 133, 134, 135: opening 139: antenna element 140, 441, 442, 443, 444, 541, 542, 543, 544, 545, 546, 547, 548, 641, 642, 643, 644, 645, 646: noise suppression element 150, 450, 550, 650: first metal part 151, 451, 551, 651: the first end of the first metal part 152, 452, 552, 652: the second end of the first metal part 310: the upper cover 320: the shaft element 460: the second metal part 461: the second metal part First end 462: The first end of the second metal part E1: The first surface of the non-conductor support element E2: The second surface of the non-conductor support element FP: Feeding point H1: Thickness L1, L2, L3, L4, LA :length

Figure 1 is a cross-sectional view of a mobile device according to an embodiment of the invention. FIG. 2A is a perspective view of the antenna module according to an embodiment of the invention. FIG. 2B is a back view of the antenna module according to an embodiment of the invention. Figure 3 is a cross-sectional view of a mobile device according to another embodiment of the invention. FIG. 4A shows a back view of the antenna module according to an embodiment of the invention. FIG. 4B is a back view of the antenna module according to another embodiment of the invention. FIG. 4C is a back view of the antenna module according to another embodiment of the invention. FIG. 4D is a back view of the antenna module according to another embodiment of the invention. FIG. 5A is a back view of the antenna module according to an embodiment of the invention. FIG. 5B is a back view of the antenna module according to another embodiment of the invention. FIG. 5C is a back view of the antenna module according to another embodiment of the invention. FIG. 5D is a back view of the antenna module according to another embodiment of the invention. FIG. 5E is a back view of the antenna module according to another embodiment of the invention. FIG. 5F is a back view of the antenna module according to another embodiment of the invention. Fig. 5G is a back view of the antenna module according to another embodiment of the invention. Fig. 5H is a back view of the antenna module according to another embodiment of the present invention. FIG. 6A is a back view of the antenna module according to an embodiment of the invention. FIG. 6B is a back view of the antenna module according to another embodiment of the invention. FIG. 6C is a back view of the antenna module according to another embodiment of the invention. FIG. 6D is a back view of the antenna module according to another embodiment of the invention. FIG. 6E is a back view of the antenna module according to another embodiment of the invention. FIG. 6F is a back view of the antenna module according to another embodiment of the invention.

120: Antenna Module

130: Non-conductor support element

131, 132, 133, 134, 135: opening

140: Noise suppression components

150: The first metal part

151: The first end of the first metal part

152: The second end of the first metal part

E2: The second surface of the non-conductor supporting element

LA: Length

Claims (10)

A mobile device includes: a frame; a back cover; a battery module; a main circuit board adjacent to the battery module; a fan module adjacent to the main circuit board; and an antenna module adjacent to The fan module, wherein the antenna module includes; a non-conductor support element having a first surface and a second surface opposite to each other, wherein a plurality of openings are formed and penetrate the first surface of the non-conductor support element And the second surface; an antenna element disposed on the first surface of the non-conductor support element and used to cover a low frequency band and a high frequency band; and a noise suppression element disposed on the non-conductor support element On the second surface, the noise suppression element is used to prevent electromagnetic waves in the low frequency band of the antenna element from causing interference to the main circuit board; wherein the battery module, the main circuit board, the fan module, and the antenna The modules are all arranged between the frame and the back cover. For the mobile device described in item 1 of the scope of patent application, the fan module is used to generate an air flow, and the air flow passes through the openings of the non-conductor support element. According to the mobile device described in claim 1, wherein the antenna element has a vertical projection on the second surface of the non-conductor support element, and the vertical projection at least partially overlaps the noise suppression element. For the mobile device described in item 1 of the scope of patent application, the low-frequency band is between 2400MHz and 2500MHz, and the high-frequency band is between 5150MHz and 5850MHz. For the mobile device described in item 1 of the scope of patent application, the first metal part is in an L shape, a straight strip shape, a U shape, or a serpentine shape. For the mobile device described in claim 1, wherein the noise suppression element includes at least a first metal part, and if the noise suppression element is coupled to a ground potential, the length of the first metal part is Roughly equal to 0.25 times the wavelength of the low frequency band. For the mobile device described in item 6 of the scope of patent application, the noise suppression element further includes a second metal part, and the length of the second metal part is approximately equal to 0.25 times the wavelength of the high frequency band. In the mobile device described in item 7 of the scope of the patent application, the second metal part presents an L-shape. For the mobile device described in claim 1, wherein the noise suppression element includes at least a first metal part, and if the noise suppression element is in a floating state, the length of the first metal part is approximately equal to 0.5 times the wavelength of the low frequency band. An antenna module includes: a non-conductor support element having a first surface and a second surface opposite to each other, wherein a plurality of openings are formed and penetrate the first surface and the second surface of the non-conductor support element An antenna element arranged on the first surface of the non-conductor support element and used to cover a low frequency band and a high frequency band; and a noise suppression element arranged on the second surface of the non-conductor support element, The noise suppression element is used to avoid interference caused by electromagnetic waves in the low frequency band of the antenna element.

Images