Antenna system

Abstract

This invention provides an antenna system comprising: a first grounding component, a second grounding component, a first radiating section, a second radiating section, a third radiating section, a fourth radiating section, a fifth radiating section, a sixth radiating section, a seventh radiating section, an eighth radiating section, and a ninth radiating section. The first radiating section has a first feed point. The second radiating section is coupled to the first radiating section. The third radiating section is coupled to the first radiating section. The fifth radiating section is coupled to the second grounding component, and is adjacent to the second radiating section. The first, second, third, fourth, and fifth radiating sections can form a first antenna structure. The sixth, seventh, eighth, and ninth radiating sections can form a second antenna structure.

Description

Technical Field

[0001] This utility model relates to an antenna system, and more particularly to an antenna system having a wideband. Background Technology

[0002] With the advancement of mobile communication technology, mobile devices have become increasingly common in recent years, such as laptops, mobile phones, multimedia players, and other portable electronic devices with multiple functions. To meet people's needs, mobile devices typically have wireless communication capabilities. Some cover long-range wireless communication, such as mobile phones using 2G, 3G, and LTE (Long Term Evolution) systems and their respective frequency bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz, and 2500MHz. Others cover short-range wireless communication, such as Wi-Fi and Bluetooth systems using the frequency bands of 2.4GHz, 5.2GHz, and 5.8GHz.

[0003] Antennas are indispensable components in wireless communication. If the operating bandwidth of an antenna used for receiving or transmitting signals is too narrow, it can easily lead to a degradation in the communication quality of mobile devices. Therefore, designing a small-size, wide-bandwidth antenna system with high isolation is an important task for designers. Utility Model Content

[0004] In a preferred embodiment, the present invention provides an antenna system comprising: a first grounding component; a second grounding component; a first radiating portion having a first feed point; a second radiating portion coupled to the first radiating portion; a third radiating portion coupled to the first radiating portion, wherein the second radiating portion and the third radiating portion extend in substantially opposite directions; a fourth radiating portion coupled to the first radiating portion, wherein the fourth radiating portion is adjacent to the first grounding component; and a fifth radiating portion coupled to the second grounding component, wherein the fifth radiating portion is adjacent to the first grounding component. The second radiating section; a sixth radiating section having a second feed point; a seventh radiating section coupled to the sixth radiating section; an eighth radiating section coupled to the sixth radiating section; and a ninth radiating section, wherein the sixth radiating section is coupled to the second grounding component via the ninth radiating section; wherein the first radiating section, the second radiating section, the third radiating section, the fourth radiating section, and the fifth radiating section form a first antenna structure; wherein the sixth radiating section, the seventh radiating section, the eighth radiating section, and the ninth radiating section form a second antenna structure.

[0005] In some embodiments, the second radiating portion is in the form of a first zigzag shape and includes a first segment, a second segment, and a third segment, while the fifth radiating portion is in the form of a second zigzag shape and includes a fourth segment, a fifth segment, and a sixth segment.

[0006] In some embodiments, a first coupling gap is formed between the first grounding component and the fourth radiating portion, and a second coupling gap is formed between the second radiating portion and the fifth radiating portion.

[0007] In some embodiments, the first antenna structure covers a first frequency band, a second frequency band, and a third frequency band, wherein the first frequency band is between 690MHz and 960MHz, the second frequency band is between 1700MHz and 2200MHz, and the third frequency band is between 2300MHz and 2700MHz.

[0008] In some embodiments, the total length of the first radiating portion and the second radiating portion is approximately equal to 0.25 times the wavelength of the second frequency band.

[0009] In some embodiments, the total length of the first radiating portion and the third radiating portion is approximately equal to 0.25 times the wavelength of the third frequency band.

[0010] In some embodiments, the length of the fifth radiating element is approximately equal to 0.25 times the wavelength of the first frequency band.

[0011] In some embodiments, the second antenna structure covers a fourth frequency band and a fifth frequency band, the fourth frequency band being between 2400MHz and 2500MHz, and the fifth frequency band being between 5150MHz and 7125MHz.

[0012] In some embodiments, the total length of the sixth radiating portion and the seventh radiating portion is approximately equal to 0.25 times the wavelength of the fourth frequency band.

[0013] In some embodiments, the total length of the sixth radiating portion and the eighth radiating portion is approximately equal to 0.25 times the wavelength of the fifth frequency band. Attached Figure Description

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram showing an antenna system according to an embodiment of the present invention.

[0016] Figure 2This is a voltage standing wave ratio diagram showing the first antenna structure of the antenna system according to an embodiment of the present invention.

[0017] Figure 3 This is a voltage standing wave ratio (VSWR) diagram showing the second antenna structure of the antenna system according to an embodiment of the present invention.

[0018] Figure label:

[0019] 100: Antenna System

[0020] 101: First grounding component

[0021] 102: Second grounding component

[0022] 105: Dielectric substrate

[0023] 110: First Radiation Section

[0024] 111: The first end of the first radiating section

[0025] 112: The second end of the first radiating section

[0026] 120: Second Radiation Section

[0027] 121: The first end of the second radiating section

[0028] 122: The second end of the second radiating section

[0029] 124: First Section

[0030] 125: Second Section

[0031] 126: Third Section

[0032] 130: Third Radiation Section

[0033] 131: The first end of the third radiating section

[0034] 132: The second end of the third radiating section

[0035] 140: Fourth Radiation Department

[0036] 141: The first end of the fourth radiating section

[0037] 142: The second end of the fourth radiating section

[0038] 150: Fifth Radiation Department

[0039] 151: The first end of the fifth radiating section

[0040] 152: The second end of the fifth radiating section

[0041] 154: Section 4

[0042] 155: Fifth Section

[0043] 156: Section Six

[0044] 160: Sixth Radiation Department

[0045] 161: The first end of the sixth radiating section

[0046] 162: The second end of the sixth radiating section

[0047] 170: Seventh Radiation Department

[0048] 171: The first end of the seventh radiating section

[0049] 172: The second end of the seventh radiating section

[0050] 180: Eighth Radiation Department

[0051] 181: The first end of the eighth radiating section

[0052] 182: The second end of the eighth radiating section

[0053] 190: Ninth Radiation Department

[0054] 191: The first end of the ninth radiating section

[0055] 192: The second end of the ninth radiating section

[0056] 198: First Signal Source

[0057] 199: Second signal source

[0058] FB1: First Band

[0059] FB2: Second Band

[0060] FB3: Third Band

[0061] FB4: Fourth Band

[0062] FB5: Fifth Band

[0063] FP1: First feed point

[0064] FP2: Second feed point

[0065] GC1: First coupling gap

[0066] GC2: Second coupling gap

[0067] L1, L2, L3, L4, L5, L6: Length

[0068] θ1: First obtuse angle

[0069] θ2: Second obtuse angle

[0070] θ3: Third obtuse angle

[0071] θ4: Fourth obtuse angle Detailed Implementation

[0072] To make the objectives, features and advantages of this utility model more apparent and understandable, specific embodiments of this utility model are described below in conjunction with the accompanying drawings for detailed explanation.

[0073] Certain terms are used in this specification and the claims to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and the claims do not distinguish components by differences in name, but by differences in function. The terms "comprising" and "including" used throughout this specification and the claims are open-ended and should be interpreted as "including but not limited to". The term "generally" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and achieve the basic technical effect within a certain margin of error. Furthermore, the term "coupled" in this specification includes any direct and indirect electrical connection means. Therefore, if a first device is described as 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 via other devices or connection means.

[0074] The following disclosure provides many different embodiments or examples to implement the various features of this invention. The following disclosure describes specific examples of the various components and their arrangements for simplification. Of course, these specific examples are not intended to be limiting. For example, if this specification describes a first feature formed on or above a second feature, it indicates that it may include embodiments where the first and second features are in direct contact, or embodiments where additional features are formed between the first and second features, so that the first and second features may not be in direct contact. Furthermore, the same reference numerals and / or designations may be repeated in different examples of the following specification. These repetitions are for simplification and clarity and are not intended to limit any specific relationship between the different embodiments and / or structures discussed.

[0075] Furthermore, spatially related terms, such as "below," "below," "lower," "above," "higher," and similar terms, are used to facilitate the description of the relationship between one component or feature in the icon and another component or feature(s). In addition to the orientations shown in the accompanying drawings, these spatially related terms are intended to encompass different orientations of the device in use or operation. The device may be rotated to different orientations (90 degrees or other orientations), and the spatially related terms used herein can be interpreted in the same way.

[0076] Figure 1 This is a schematic diagram showing an antenna system 100 according to an embodiment of the present invention. The antenna system 100 can be used in a mobile device, such as a smartphone, tablet computer, notebook computer, wireless access point, router, or any device with communication capabilities. Alternatively, the antenna system 100 can be used in an electronic device, such as any unit in an Internet of Things (IoT) system.

[0077] exist Figure 1 In the embodiments, the antenna system 100 includes at least: a first ground element 101, a second ground element 102, a first radiation element 110, a second radiation element 120, a third radiation element 130, a fourth radiation element 140, a fifth radiation element 150, a sixth radiation element 160, a seventh radiation element 170, an eighth radiation element 180, and a ninth radiation element 190, wherein the first ground element 101, the second ground element 102, the first radiation element 110, the second radiation element 120, the third radiation element 130, the fourth radiation element 140, the fifth radiation element 150, the sixth radiation element 160, the seventh radiation element 170, the eighth radiation element 180, and the ninth radiation element 190 can all be made of metal materials, such as copper, silver, aluminum, iron, or their alloys.

[0078] For example, the first grounding component 101 and the second grounding component 102 may each be implemented by a grounding copper foil, the shape and style of which are not particularly limited in this invention. In some embodiments, the first grounding component 101 and the second grounding component 102 are separate from each other. In other embodiments, the first grounding component 101 and the second grounding component 102 are both coupled to a system ground plane (not shown).

[0079] The first radiating section 110 can generally be shaped as a short, straight strip. Specifically, the first radiating section 110 has a first end 111 and a second end 112, wherein a first feeding point FP1 is located at the first end 111 of the first radiating section 110. The first feeding point FP1 can also be coupled to a first signal source 198. For example, the first signal source 198 can be a radio frequency (RF) module.

[0080] The second radiating portion 120 can generally present a first polyline shape. Specifically, the second radiating portion 120 has a first end 121 and a second end 122, wherein the first end 121 of the second radiating portion 120 is coupled to the second end 112 of the first radiating portion 110, and the second end 122 of the second radiating portion 120 is an open end. In some embodiments, the second radiating portion 120 includes a first segment 124, a second segment 125, and a third segment 126 that are not parallel to each other, wherein the second segment 125 is coupled between the first segment 124 and the third segment 126. For example, a first obtuse angle θ1 can be formed between the first segment 124 and the second segment 125, and a second obtuse angle θ2 can be formed between the second segment 125 and the third segment 126.

[0081] The third radiating portion 130 may be generally a long, straight strip, and may be generally perpendicular to the first radiating portion 110. Specifically, the third radiating portion 130 has a first end 131 and a second end 132, wherein the first end 131 of the third radiating portion 130 is coupled to the second end 112 of the first radiating portion 110, and the second end 132 of the third radiating portion 130 is an open-circuit end. For example, the second end 122 of the second radiating portion 120 and the second end 132 of the third radiating portion 130 may extend in generally opposite and mutually distant directions.

[0082] The fourth radiating portion 140 may be generally a medium-length straight strip and may be generally parallel to the third radiating portion 130. Specifically, the fourth radiating portion 140 has a first end 141 and a second end 142, wherein the first end 141 of the fourth radiating portion 140 is coupled to the first end 111 of the first radiating portion 110, and the second end 142 of the fourth radiating portion 140 is an open-circuit end. For example, the second ends 132 of the third radiating portion 130 and 142 of the fourth radiating portion 140 may both extend in generally the same direction. In some embodiments, the combination of the first radiating portion 110, the second radiating portion 120, the third radiating portion 130, and the fourth radiating portion 140 may generally form a Y-shape. In some embodiments, the fourth radiating portion 140 is adjacent to the first grounding component 101, wherein a first coupling gap GC1 may be formed between the first grounding component 101 and the fourth radiating portion 140. It should be noted that the terms “adjacent” or “adjacent” in this specification may refer to a distance between two corresponding components that is less than a predetermined distance (e.g., 10 mm or less), but generally do not include cases where the two corresponding components are in direct contact with each other (i.e., the aforementioned distance is reduced to 0).

[0083] The fifth radiating portion 150 may generally present a second zigzag shape. Specifically, the fifth radiating portion 150 has a first end 151 and a second end 152, wherein the first end 151 of the fifth radiating portion 150 is coupled to the second grounding component 102, and the second end 152 of the fifth radiating portion 150 is an open-circuit end. For example, the second end 122 of the second radiating portion 120 and the second end 152 of the fifth radiating portion 150 may extend in generally opposite and mutually distant directions. In some embodiments, the fifth radiating portion 150 includes a fourth segment 154, a fifth segment 155, and a sixth segment 156 that are not parallel to each other, wherein the fifth segment 155 is coupled between the fourth segment 154 and the sixth segment 156. For example, a third obtuse angle θ3 may be formed between the fourth segment 154 and the fifth segment 155, and a fourth obtuse angle θ4 may be formed between the fifth segment 155 and the sixth segment 156. In some embodiments, the fifth radiating portion 150 is adjacent to the second radiating portion 120, wherein a second coupling gap GC2 may be formed between the second radiating portion 120 and the fifth radiating portion 150.

[0084] The sixth radiating section 160 may generally take the form of another shorter straight strip. Specifically, the sixth radiating section 160 has a first end 161 and a second end 162, wherein a second feed point FP2 is located at the first end 161 of the sixth radiating section 160. The second feed point FP2 may further be coupled to a second signal source 199. For example, the second signal source 199 may be another radio frequency module.

[0085] The seventh radiating section 170 may take the form of another relatively long straight strip, which may be approximately perpendicular to the sixth radiating section 160. In detail, the seventh radiating section 170 has a first end 171 and a second end 172, wherein the first end 171 of the seventh radiating section 170 is coupled to the second end 162 of the sixth radiating section 160, and the second end 172 of the seventh radiating section 170 is an open-circuit end.

[0086] The eighth radiating section 180 may generally take the form of another medium-length straight strip, which may be generally perpendicular to the sixth radiating section 160. Specifically, the eighth radiating section 180 has a first end 181 and a second end 182, wherein the first end 181 of the eighth radiating section 180 is coupled to the second end 162 of the sixth radiating section 160, and the second end 182 of the eighth radiating section 180 is an open-circuit end. For example, the second ends 172 of the seventh radiating section 170 and the second ends 182 of the eighth radiating section 180 may extend in generally opposite and mutually distant directions. In some embodiments, the combination of the sixth radiating section 160, the seventh radiating section 170, and the eighth radiating section 180 may generally form a T-shape.

[0087] The ninth radiating section 190 can generally be L-shaped. Specifically, the ninth radiating section 190 has a first end 191 and a second end 192, wherein the first end 191 of the ninth radiating section 190 is coupled to the second grounding component 102, and the second end 192 of the ninth radiating section 190 is coupled to the first end 161 of the sixth radiating section 160. That is, the sixth radiating section 160 can be coupled to the second grounding component 102 via the ninth radiating section 190.

[0088] In some embodiments, the antenna system 100 further includes a dielectric substrate 105, wherein the first grounding component 101, the second grounding component 102, the first radiating portion 110, the second radiating portion 120, the third radiating portion 130, the fourth radiating portion 140, the fifth radiating portion 150, the sixth radiating portion 160, the seventh radiating portion 170, the eighth radiating portion 180, and the ninth radiating portion 190 can all be disposed on the same surface of the dielectric substrate 105. For example, the dielectric substrate 105 can be an FR4 (Flame Retardant 4) substrate, a printed circuit board (PCB), or a flexible printed circuit (FPC), but is not limited to these.

[0089] In a preferred embodiment, the first radiating part 110, the second radiating part 120, the third radiating part 130, the fourth radiating part 140, and the fifth radiating part 150 can jointly form a first antenna structure of the antenna system 100. Additionally, the sixth radiating part 160, the seventh radiating part 170, the eighth radiating part 180, and the ninth radiating part 190 can jointly form a second antenna structure of the antenna system 100. Since the aforementioned first antenna structure and second antenna structure are well integrated, the overall size of the antenna system 100 can be significantly reduced.

[0090] Figure 2 This is a voltage standing wave ratio (VSWR) graph showing the first antenna structure of the antenna system 100 according to an embodiment of the present invention, where the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the voltage standing wave ratio. Figure 2 Based on the measurement results, the first antenna structure of the antenna system 100 can cover a first frequency band FB1, a second frequency band FB2, and a third frequency band FB3. For example, the first frequency band FB1 can be between 690MHz and 960MHz, the second frequency band FB2 can be between 1700MHz and 2200MHz, and the third frequency band FB3 can be between 2300MHz and 2700MHz. Therefore, the first antenna structure of the antenna system 100 will at least support broadband operation of LTE (Long Term Evolution).

[0091] Figure 3 This is a voltage standing wave ratio (VSWR) diagram showing the second antenna structure of the antenna system 100 according to an embodiment of the present invention, where the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the VSWR. Figure 3 Based on the measurement results, the second antenna structure of antenna system 100 can cover a fourth frequency band FB4 and a fifth frequency band FB5. For example, the fourth frequency band FB4 can be between 2400MHz and 2500MHz, while the fifth frequency band FB5 can be between 5150MHz and 7125MHz. Therefore, the second antenna structure of antenna system 100 will at least support broadband operation of WLAN (Wireless Local Area Network), Wi-Fi 6E, and Wi-Fi 7.

[0092] In some embodiments, the antenna system 100 operates as follows: The first radiator 110 and the second radiator 120 can generate the aforementioned second frequency band FB2. The first radiator 110 and the third radiator 130 can generate the aforementioned third frequency band FB3. The fourth radiator 140 can be used to fine-tune the impedance matching of the aforementioned third frequency band FB3. The fifth radiator 150 can be coupled and excited by the second radiator 120 to generate the aforementioned first frequency band FB1. The first coupling gap GC1 and the second coupling gap GC2 can be used to fine-tune the impedance matching of the aforementioned first frequency band FB1 and second frequency band FB2. The sixth radiator 160 and the seventh radiator 170 can generate the aforementioned fourth frequency band FB4. The sixth radiator 160 and the eighth radiator 180 can generate the aforementioned fifth frequency band FB5.

[0093] In some embodiments, the component dimensions of the antenna system 100 may be as described below. The total length L1 of the first radiator 110 and the second radiator 120 may be approximately equal to 0.25 times the wavelength (λ / 4) of the second frequency band FB2 of the first antenna structure of the antenna system 100. The total length L2 of the first radiator 110 and the third radiator 130 may be approximately equal to 0.25 times the wavelength (λ / 4) of the third frequency band FB3 of the first antenna structure of the antenna system 100. The length L3 of the fourth radiator 140 may be between 7 mm and 12 mm. The length L4 of the fifth radiator 150 may be approximately equal to 0.25 times the wavelength (λ / 4) of the first frequency band FB1 of the first antenna structure of the antenna system 100. The total length L5 of the sixth radiator 160 and the seventh radiator 170 may be approximately equal to 0.25 times the wavelength (λ / 4) of the fourth frequency band FB4 of the second antenna structure of the antenna system 100. The total length L6 of the sixth radiating section 160 and the eighth radiating section 180 can be approximately equal to 0.25 times the wavelength (λ / 4) of the fifth frequency band FB5 of the second antenna structure of the antenna system 100. The width of the first coupling gap GC1 can be between 1 mm and 2 mm. The width of the second coupling gap GC2 can be between 2 mm and 4 mm. The first obtuse angle θ1 can be between 140 degrees and 165 degrees. The second obtuse angle θ2 can be between 140 degrees and 165 degrees. The third obtuse angle θ3 can be between 150 degrees and 175 degrees. The fourth obtuse angle θ4 can be between 150 degrees and 175 degrees. The above component size ranges are derived from multiple experimental results, which help optimize the operating bandwidth and impedance matching of the antenna system 100, while also minimizing environmental interference factors of the antenna system 100.

[0094] In some embodiments, the aforementioned antenna system 100 can be applied to a drone (not shown). Since the drone includes the aforementioned antenna system 100, it will be able to support wireless communication functionality. In some embodiments, the aforementioned drone further includes a radio frequency circuit, a filter, an amplifier, a processor, and / or a housing, but is not limited thereto.

[0095] This invention proposes a novel antenna system. Compared with traditional designs, this invention has advantages such as small size, multiple frequency bands, low environmental interference, and high communication quality, making it well-suited for various mobile communication devices or the Internet of Things.

[0096] It is worth noting that the component dimensions, shapes, and frequency ranges described above are not limiting conditions of this invention. Antenna designers can adjust these multiple settings according to different needs. The antenna system of this invention is not limited to the state illustrated in Figures 1-3. This invention may include only any one or more features of any one or more embodiments in Figures 1-3. In other words, not all features shown in the figures need to be implemented simultaneously in the antenna system of this invention.

[0097] The ordinal numbers in this specification and the claims, such as "first", "second", "third", etc., are not sequential in any particular order; they are only used to distinguish between two different components with the same name.

[0098] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. An antenna system, characterized in that, include: First grounding component; A second grounding component; A first radiating section having a first feed point; A second radiating part is coupled to the first radiating part; A third radiating portion is coupled to the first radiating portion, wherein the second radiating portion and the third radiating portion extend in substantially opposite directions; A fourth radiating part is coupled to the first radiating part, wherein the fourth radiating part is adjacent to the first grounding component; A fifth radiating part is coupled to the second grounding component, wherein the fifth radiating part is adjacent to the second radiating part; A sixth radiating section having a second feed point; A seventh radiating part is coupled to the sixth radiating part; An eighth radiating section is coupled to the sixth radiating section; as well as A ninth radiating section, wherein the sixth radiating section is coupled to the second grounding component via the ninth radiating section; The first radiating part, the second radiating part, the third radiating part, the fourth radiating part, and the fifth radiating part form a first antenna structure; The sixth, seventh, eighth, and ninth radiating sections form a second radome structure.

2. The antenna system as described in claim 1, characterized in that, The second radiating part is in the form of a first broken line and includes a first segment, a second segment, and a third segment, while the fifth radiating part is in the form of a second broken line and includes a fourth segment, a fifth segment, and a sixth segment.

3. The antenna system as described in claim 1, characterized in that, A first coupling gap is formed between the first grounding component and the fourth radiating part, and a second coupling gap is formed between the second radiating part and the fifth radiating part.

4. The antenna system as described in claim 1, characterized in that, The first antenna structure covers a first frequency band, a second frequency band, and a third frequency band. The first frequency band is between 690MHz and 960MHz, the second frequency band is between 1700MHz and 2200MHz, and the third frequency band is between 2300MHz and 2700MHz.

5. The antenna system as described in claim 4, characterized in that, The total length of the first radiating part and the second radiating part is approximately equal to 0.25 times the wavelength of the second frequency band.

6. The antenna system as described in claim 4, characterized in that, The total length of the first radiating section and the third radiating section is approximately equal to 0.25 times the wavelength of the third frequency band.

7. The antenna system as described in claim 4, characterized in that, The length of the fifth radiating element is approximately 0.25 times the wavelength of the first frequency band.

8. The antenna system as claimed in claim 1, characterized in that, The second antenna structure covers a fourth frequency band and a fifth frequency band, the fourth frequency band being between 2400MHz and 2500MHz, and the fifth frequency band being between 5150MHz and 7125MHz.

9. The antenna system as described in claim 8, characterized in that, The total length of the sixth and seventh radiating sections is approximately equal to 0.25 times the wavelength of the fourth frequency band.

10. The antenna system as claimed in claim 8, characterized in that, The total length of the sixth and eighth radiating sections is approximately equal to 0.25 times the wavelength of the fifth frequency band.

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