Mobile device supporting wideband operation
Patent Information
- Application Number
- CN202510340974.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-09-22
AI Technical Summary
倘若用于接收或发射信号的天线其操作频宽(Operational Bandwidth)过窄，则很容易造成移动装置的通信品质下降
[0015]本发明的有益效果在于，本发明提出一种新颖的移动装置及其天线结构。与传统设计相比，本发明至少具有小尺寸、宽频带、高辐射增益，以及低制造成本等优势，故其很适合应用于各种各式的通信装置当中。
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Figure CN122800902A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a mobile device, and more particularly to a mobile device that supports wideband operation. 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 ranges; for example, mobile phones use 2G, 3G, and LTE (Long Term Evolution) systems and the frequency bands they use: 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz, and 2500MHz. Others cover short-range wireless communication ranges; for example, Wi-Fi and Bluetooth systems use 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 structure is an important task for designers. Summary of the Invention
[0004] The purpose of this invention is to provide a mobile device that supports wideband operation in order to solve at least one of the above-mentioned problems.
[0005] In a preferred embodiment, the present invention provides a mobile device supporting wideband operation, comprising: a grounding element; a first radiating portion coupled to the grounding element; a feed radiating portion having a feed point; a second radiating portion coupled to the feed radiating portion, wherein the second radiating portion is adjacent to the first radiating portion; a connecting radiating portion coupled to the feed point; a third radiating portion coupled to the connecting radiating portion; a fourth radiating portion coupled to the connecting radiating portion, wherein the connecting radiating portion, the third radiating portion, and the fourth radiating portion are all adjacent to the first radiating portion; a fifth radiating portion coupled to the connecting radiating portion; and a stamped metal portion coupled to the first radiating portion, wherein the stamped metal portion extends substantially along the first radiating portion; wherein the first radiating portion, the feed radiating portion, the second radiating portion, the connecting radiating portion, the third radiating portion, the fourth radiating portion, the fifth radiating portion, and the stamped metal portion together form an antenna structure.
[0006] In some embodiments, the first radiating portion has a larger L-shape, the second radiating portion has a smaller L-shape, and the combination of the feed radiating portion, the connecting radiating portion, the third radiating portion, the fourth radiating portion, and the fifth radiating portion has an H-shape.
[0007] In some embodiments, the moving device further includes: a dielectric substrate, wherein the first radiating portion, the feed radiating portion, the second radiating portion, the connecting radiating portion, the third radiating portion, the fourth radiating portion, and the fifth radiating portion are all disposed on a specific surface of the dielectric substrate; wherein the stamped metal portion includes a first widening section and a second widening section, and the first widening section and the second widening section are both located above the dielectric substrate and are substantially parallel to each other on the specific surface.
[0008] In some embodiments, the first widening section has a first vertical projection on the specific surface of the dielectric substrate, the first vertical projection at least partially overlapping with both the first radiating portion and the second radiating portion, and the second widening section has a second vertical projection on the specific surface of the dielectric substrate, the second vertical projection not overlapping with either the third radiating portion or the fifth radiating portion.
[0009] In some embodiments, the antenna structure covers a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, and a fifth frequency band, wherein the first frequency band is between 600MHz and 800MHz, the second frequency band is between 800MHz and 960MHz, the third frequency band is between 1710MHz and 2170MHz, the fourth frequency band is between 2300MHz and 2700MHz, and the fifth frequency band is between 3300MHz and 3800MHz.
[0010] In some embodiments, the length of the first radiating portion is approximately equal to 0.25 times the wavelength of the first frequency band.
[0011] In some embodiments, the length of the feed radiating section is between 0.125 and 0.25 times the wavelength of the second frequency band.
[0012] In some embodiments, the total length of the second radiating section, the feed radiating section, the connecting radiating section, and the third radiating section is approximately equal to one wavelength of the third frequency band.
[0013] In some embodiments, the total length of the feed radiator and the second radiator is approximately equal to 0.5 times the wavelength of the fourth frequency band.
[0014] In some embodiments, the total length of the fourth radiating portion, the connecting radiating portion, and the fifth radiating portion is approximately equal to 0.5 times the wavelength of the fifth frequency band.
[0015] The beneficial effects of this invention are that it proposes a novel mobile device and its antenna structure. Compared with conventional designs, this invention has advantages such as small size, wide bandwidth, high radiation gain, and low manufacturing cost, making it well-suited for application in various communication devices. Attached Figure Description
[0016] Figure 1 This is a top view of a mobile device according to an embodiment of the present invention.
[0017] Figure 2 This is a partial view of a mobile device according to an embodiment of the present invention.
[0018] Figure 3 This is another partial view of the mobile device according to an embodiment of the present invention.
[0019] Figure 4 This is a return loss diagram of the antenna structure of a mobile device according to an embodiment of the present invention.
[0020] Figure 5 This is a radiation gain diagram of the antenna structure of a mobile device according to an embodiment of the present invention.
[0021] The attached figures are labeled as follows:
[0022] 100: Mobile devices
[0023] 110: Grounding element
[0024] 120: First Radiation Department
[0025] 121: The first end of the first radiating section
[0026] 122: The second end of the first radiating section
[0027] 124: The first, wider section
[0028] 125: The first narrower section
[0029] 130: Feed radiator
[0030] 131: First end of the feed radiator
[0031] 132: The second end of the feed radiator
[0032] 140: Second Radiation Section
[0033] 141: The first end of the second radiating section
[0034] 142: The second end of the second radiating section
[0035] 144: The second wider section
[0036] 145: The second narrower section
[0037] 150: Connecting the radiating section
[0038] 151: The first end connected to the radiating section
[0039] 152: The second end connecting the radiating section
[0040] 160: Third Radiation Section
[0041] 161: The first end of the third radiating section
[0042] 162: The second end of the third radiating section
[0043] 170: Fourth Radiation Section
[0044] 171: The first end of the fourth radiating section
[0045] 172: The second end of the fourth radiating section
[0046] 180: Fifth Radiation Department
[0047] 181: The first end of the fifth radiating section
[0048] 182: The second end of the fifth radiating section
[0049] 190: Dielectric substrate
[0050] 199: Signal Source
[0051] 200: Stamped Metal Section
[0052] 210: First widening section
[0053] 220: Second widening section
[0054] 230: First Support Section
[0055] 240: Second Support Section
[0056] CC1: First Curve
[0057] CC2: Second Curve
[0058] D1: Spacing
[0059] ES: Specific Surface
[0060] FB1: First Band
[0061] FB2: Second Band
[0062] FB3: Third Band
[0063] FB4: Fourth Band
[0064] FB5: Fifth Band
[0065] FP: Feeding Department
[0066] GC1: First coupling gap
[0067] GC2: Second coupling gap
[0068] GC3: Third coupling gap
[0069] H1: Height
[0070] L1, L2, L3, L4, L5, L6: Length
[0071] W1, W2: Width Detailed Implementation
[0072] To make the objectives, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below in conjunction with the accompanying drawings.
[0073] Certain terms are used in the specification and claims to refer to specific elements. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same element. This specification and claims do not distinguish elements by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout the specification and 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 numerous different embodiments or examples to implement the various features of this application. 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 disclosure 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 an additional feature is 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 disclosure. 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 element or feature and another(s) in the illustration. 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 top view of a mobile device 100 according to an embodiment of the present invention. Figure 2 This is a partial view of a mobile device 100 according to an embodiment of the present invention. Figure 3 This is another partial view of the mobile device 100 according to an embodiment of the present invention. Please refer to the accompanying drawings. Figure 1 , Figure 2 and Figure 3 For example, mobile device 100 could be a smartphone, a tablet computer, or a notebook computer. Figure 1 , Figure 2 and Figure 3As shown, the mobile device 100 includes at least: a ground element 110, a first radiation element 120, a feeding radiation element 130, a second radiation element 140, a connection radiation element 150, a third radiation element 160, a fourth radiation element 170, a fifth radiation element 180, and a stamping metal element 200. The ground element 110, first radiation element 120, feeding radiation element 130, second radiation element 140, connection radiation element 150, third radiation element 160, fourth radiation element 170, and fifth radiation element 180 can all be made of metal, such as copper, silver, aluminum, iron, or their alloys. It must be understood that, although not shown in… Figures 1-3 However, the mobile device 100 may also include other components, such as a processor, a touch control panel, a speaker, a power supply module, or a housing.
[0077] For example, grounding element 110 can be implemented using a ground copper foil, but it is not limited to this. In some embodiments, grounding element 110 can also be coupled to a system ground plane (not shown) of mobile device 100.
[0078] The first radiating portion 120 may generally present a large L-shape. Specifically, the first radiating portion 120 has a first end 121 and a second end 122, wherein the first end 121 of the first radiating portion 120 is coupled to the grounding element 110, and the second end 122 of the first radiating portion 120 is an open end. In some embodiments, the first radiating portion 120 includes a first wider portion 124 adjacent to the first end 121 and a first narrower portion 125 adjacent to the first end 122, wherein the first narrower portion 125 may be coupled to the grounding element 110 via the first wider portion 124. It should be noted that the terms "adjacent" or "adjacent" in this specification may refer to a distance between two corresponding elements that is less than a predetermined distance (e.g., 10 mm or less), and may also include cases where the two corresponding elements are in direct contact with each other (i.e., the aforementioned distance is reduced to 0).
[0079] The feed radiator 130 can be generally shaped as a long straight strip, and can be generally parallel to the grounding element 110. Specifically, the feed radiator 130 has a first end 131 and a second end 132, wherein a feeding point FP is located at the first end 131 of the feed radiator 130. The feeding point FP can be further coupled to a signal source 199. For example, the signal source 199 can be a radio frequency (RF) module.
[0080] The second radiating portion 140 may generally present a smaller L-shape (compared to the first radiating portion 120). Specifically, the second radiating portion 140 has a first end 141 and a second end 142, wherein the first end 141 of the second radiating portion 140 is coupled to the second end 132 of the feed radiating portion 130, and the second end 142 of the second radiating portion 140 is an open-circuit end. For example, the second end 122 of the first radiating portion 120 and the second end 142 of the second radiating portion 140 may both extend in generally the same direction. In some embodiments, the second radiating portion 140 includes a second wider portion 144 adjacent to the first end 141 and a second narrower portion 145 adjacent to the second end 142, wherein the second narrower portion 145 may be coupled to the feed radiating portion 130 via the second wider portion 144. In some embodiments, the second narrower portion 145 of the second radiating portion 140 is adjacent to the first narrower portion 125 of the first radiating portion 120, wherein a first coupling gap GC1 may be formed between the first radiating portion 120 and the second radiating portion 140.
[0081] The connecting radiating portion 150 may be generally rectangular or square. Specifically, the connecting radiating portion 150 has a first end 151 and a second end 152, wherein the first end 151 of the connecting radiating portion 150 is coupled to the feed point FP (or the first end 131 of the feed radiating portion 130). In some embodiments, the combination of the feed radiating portion 130, the connecting radiating portion 150, the third radiating portion 160, the fourth radiating portion 170, and the fifth radiating portion 180 generally forms an H-shape.
[0082] The third radiating section 160 can generally be in the shape of a medium straight bar (compared to the feed radiating section 130). In detail, the third radiating section 160 has a first end 161 and a second end 162, wherein the first end 161 of the third radiating section 160 is coupled to the second end 152 of the connecting radiating section 150, and the second end 162 of the third radiating section 160 is an open circuit end.
[0083] The fourth radiating portion 170 may generally be a shorter, straight strip (compared to the third radiating portion 160). Specifically, the fourth radiating portion 170 has a first end 171 and a second end 172, wherein the first end 171 of the fourth radiating portion 170 is coupled to the second end 152 of the connecting radiating portion 150, and the second end 172 of the fourth radiating portion 170 is an open-circuit end. For example, the second end 162 of the third radiating portion 160 and the second end 172 of the fourth radiating portion 170 may extend in generally opposite directions. In some embodiments, the connecting radiating portion 150, the third radiating portion 160, and the fourth radiating portion 170 are all adjacent to the first narrower portion 125 of the first radiating portion 120, wherein a second coupling gap GC2 may be formed between the first radiating portion 120 and each of the connecting radiating portions 150, 160, and 170. In other embodiments, a third coupling gap GC3 may also be formed between the grounding element 110 and the feed radiating portion 130.
[0084] The fifth radiating section 180 may generally take the form of another shorter, straight strip, which may be generally parallel to the third radiating section 160. Specifically, the fifth radiating section 180 has a first end 181 and a second end 182, wherein the first end 181 of the fifth radiating section 180 is coupled to the first end 151 of the connecting radiating section 150, and the second end 182 of the fifth radiating section 180 is an open-circuit end. For example, the second end 162 of the third radiating section 160 and the second end 182 of the fifth radiating section 180 may both extend in generally the same direction.
[0085] In some embodiments, the mobile device 100 further includes a dielectric substrate 190. For example, the dielectric substrate 190 may be an FR4 (Flame Retardant 4) substrate, a printed circuit board (PCB), or a flexible printed circuit (FPC). The first radiating portion 120, the feed radiating portion 130, the second radiating portion 140, the connecting radiating portion 150, the third radiating portion 160, the fourth radiating portion 170, and the fifth radiating portion 180 may all be disposed on a specific surface ES of the dielectric substrate 190. In addition, the grounding element 110 may be disposed adjacent to the dielectric substrate 190.
[0086] The stamped metal portion 200 may have a three-dimensional structure, which can be implemented by an additional iron piece and using a surface mount technology (SMT) process. For example, the stamped metal portion 200 may extend generally along the first radiating portion 120. Specifically, the stamped metal portion 200 includes: a first widening segment 210, a second widening segment 220, a first supporting segment 230, and a second supporting segment 240, wherein the width W1 of the first widening segment 210 may be greater than the width W2 of the second widening segment 220. Both the first widening segment 210 and the second widening segment 220 may be located above the dielectric substrate 190 and are generally parallel to each other on its specific surface ES. The first supporting segment 230 and the second supporting segment 240 may be opposite each other and both are generally perpendicular to each other on the specific surface ES of the dielectric substrate 190. Additionally, the first widening section 210 and the second widening section 220 can also be coupled to the first radiating section 120 via the first support section 230 and the second support section 240. In some embodiments, the first widening section 210 has a first vertical projection on a specific surface ES of the dielectric substrate 190, wherein this first vertical projection may at least partially overlap with both the first radiating section 120 and the second radiating section 140. In some embodiments, the second widening section 220 has a second vertical projection on a specific surface ES of the dielectric substrate 190, wherein this second vertical projection does not overlap with either the third radiating section 160 or the fifth radiating section 180. However, this second vertical projection may at least partially overlap with the first radiating section 120, the second radiating section 140, the connecting radiating section 150, and the fourth radiating section 170.
[0087] In a preferred embodiment, the first radiating part 120, the feed radiating part 130, the second radiating part 140, the connecting radiating part 150, the third radiating part 160, the fourth radiating part 170, the fifth radiating part 180, and the stamped metal part 200 can together form an antenna structure of the mobile device 100.
[0088] Figure 4 This is a return loss diagram of the antenna structure of a mobile device 100 according to an embodiment of the present invention, where the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the return loss (dB). Figure 4Based on the measurement results, the antenna structure of mobile device 100 can cover a first frequency band FB1, a second frequency band FB2, a third frequency band FB3, a fourth frequency band FB4, and a fifth frequency band FB5. For example, the first frequency band FB1 can be between 600MHz and 800MHz, the second frequency band FB2 can be between 800MHz and 960MHz, the third frequency band FB3 can be between 1710MHz and 2170MHz, the fourth frequency band FB4 can be between 2300MHz and 2700MHz, and the fifth frequency band FB5 can be between 3300MHz and 3800MHz. Therefore, mobile device 100 will at least support broadband operation of LTE (Long Term Evolution).
[0089] In some embodiments, the operating principle of the antenna structure of the mobile device 100 may be as follows: The first radiating section 120 can generate the aforementioned first frequency band FB1. The feed radiating section 130 can generate the aforementioned second frequency band FB2. The feed radiating section 130, the second radiating section 140, the connecting radiating section 150, and the third radiating section 160 can generate the aforementioned third frequency band FB3. The feed radiating section 130 and the second radiating section 140 can generate the aforementioned fourth frequency band FB4. The connecting radiating section 150, the fourth radiating section 170, and the fifth radiating section 180 can generate the aforementioned fifth frequency band FB5.
[0090] Figure 5 This is a radiation gain graph of the antenna structure of a mobile device 100 according to an embodiment of the present invention, where the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the radiation gain (dBi). Figure 5 As shown, a first curve CC1 represents the operating characteristics of the antenna structure of the mobile device 100 before the stamped metal part 200 is used, while a second curve CC2 represents the operating characteristics of the antenna structure of the mobile device 100 after the stamped metal part 200 is used. According to Figure 5 The comparison results show that, since the stamped metal part 200 of the mobile device 100 provides an additional current path to its antenna structure, the radiation gain of the antenna structure of the mobile device 100 in the aforementioned first frequency band FB1, second frequency band FB2, third frequency band FB3, fourth frequency band FB4, and fifth frequency band FB5 can all increase by approximately 1 dBi to 3 dBi. Therefore, the mobile device and antenna structure proposed in this invention can meet the practical application requirements of general mobile communication.
[0091] In some embodiments, the component dimensions of the mobile device 100 may be as described below. The length L1 of the first radiating section 120 may be approximately equal to 0.25 times the wavelength (λ / 4) of the first frequency band FB1 of the antenna structure of the mobile device 100. The length L2 of the feed radiating section 130 may be between 0.125 times and 0.25 times the wavelength (λ / 8 to λ / 4) of the second frequency band FB2 of the antenna structure of the mobile device 100. The total length L3 of the second radiating section 140, the feed radiating section 130, the connecting radiating section 150, and the third radiating section 160 may be approximately equal to 1 times the wavelength (1λ) of the third frequency band FB3 of the antenna structure of the mobile device 100. The total length L4 of the feed radiating section 130 and the second radiating section 140 may be approximately equal to 0.5 times the wavelength (λ / 2) of the fourth frequency band FB4 of the antenna structure of the mobile device 100. The total length L5 of the fourth radiating section 170, the connecting radiating section 150, and the fifth radiating section 180 can be approximately equal to 0.5 times the wavelength (λ / 2) of the fifth frequency band FB5 of the antenna structure of the mobile device 100. The length L6 of the stamped metal section 200 can be less than or equal to 0.25 times the wavelength (λ / 4) of the first frequency band FB1 of the antenna structure of the mobile device 100. The width W1 of the first widening section 210 can be between 6 mm and 8 mm. The width W2 of the second widening section 220 can be between 5 mm and 7 mm. The height H1 of the stamped metal section 200 on the dielectric substrate 190 can be between 2 mm and 3 mm. The width of the first coupling gap GC1 can be between 0.5 mm and 2 mm. The width of the second coupling gap GC2 can be between 0.5 mm and 2 mm. The width of the third coupling gap GC3 can be between 0.5 mm and 2 mm. The distance D1 between the second end 142 of the second radiating section 140 and the second end 172 of the fourth radiating section 170 can be between 10 mm and 20 mm. The above size range is derived from the results of multiple experiments and helps to optimize the radiation gain, impedance matching, and operational bandwidth of the antenna structure of the mobile device 100.
[0092] This invention proposes a novel mobile device and its antenna structure. Compared with conventional designs, this invention has advantages such as small size, wide bandwidth, high radiation gain, and low manufacturing cost, making it well-suited for application in various communication devices.
[0093] It is worth noting that the component dimensions, shapes, and frequency ranges described above are not limiting factors of this invention. Antenna designers can adjust these settings according to different needs. The mobile device of this invention is not limited to... Figures 1-5 The state illustrated. This invention may include only... Figures 1-5Any one or more features of any one or more embodiments. In other words, not all of the illustrated features need to be implemented simultaneously in the mobile device of the present invention.
[0094] The ordinal numbers in this specification and claims, such as "first", "second", "third", etc., are not sequential in any way; they are only used to distinguish two different elements with the same name.
[0095] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the scope of the invention. Those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A mobile device supporting wideband operation, comprising: A grounding element; A first radiating section is coupled to the grounding element; A feed radiator has a feed point; A second radiating section is coupled to the feed radiating section, wherein the second radiating section is adjacent to the first radiating section; A connecting radiating section is coupled to the feed point; A third radiating part is coupled to the connecting radiating part; A fourth radiating part is coupled to the connecting radiating part, wherein the connecting radiating part, the third radiating part, and the fourth radiating part are all adjacent to the first radiating part; A fifth radiating section, coupled to the connecting radiating section; and A stamped metal portion is coupled to the first radiating portion, wherein the stamped metal portion extends along the first radiating portion; The first radiating part, the feed radiating part, the second radiating part, the connecting radiating part, the third radiating part, the fourth radiating part, the fifth radiating part, and the stamped metal part together form an antenna structure.
2. The mobile device supporting broadband operation as claimed in claim 1, wherein the first radiating part is in the shape of a larger L, the second radiating part is in the shape of a smaller L, and the combination of the feed radiating part, the connecting radiating part, the third radiating part, the fourth radiating part, and the fifth radiating part is in the shape of an H.
3. The mobile device supporting wideband operation as described in claim 1, further comprising: A dielectric substrate, wherein the first radiating portion, the feed radiating portion, the second radiating portion, the connecting radiating portion, the third radiating portion, the fourth radiating portion, and the fifth radiating portion are all disposed on a specific surface of the dielectric substrate; The stamped metal portion includes a first widening section and a second widening section, both of which are located above the dielectric substrate and are parallel to the specific surface.
4. The mobile device supporting broadband operation as claimed in claim 3, wherein the first widening segment has a first vertical projection on the specific surface of the dielectric substrate, the first vertical projection at least partially overlapping with both the first radiating portion and the second radiating portion, the second widening segment has a second vertical projection on the specific surface of the dielectric substrate, and the second vertical projection does not overlap with either the third radiating portion or the fifth radiating portion.
5. The mobile device supporting wideband operation as claimed in claim 1, wherein the antenna structure covers a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, and a fifth frequency band, the first frequency band being between 600MHz and 800MHz, the second frequency band being between 800MHz and 960MHz, the third frequency band being between 1710MHz and 2170MHz, the fourth frequency band being between 2300MHz and 2700MHz, and the fifth frequency band being between 3300MHz and 3800MHz.
6. The mobile device supporting wideband operation as claimed in claim 5, wherein the length of the first radiating portion is equal to 0.25 times the wavelength of the first frequency band.
7. The mobile device supporting wideband operation as claimed in claim 5, wherein the length of the feed radiator is between 0.125 times and 0.25 times the wavelength of the second frequency band.
8. The mobile device supporting wideband operation as claimed in claim 5, wherein the total length of the second radiating part, the feed radiating part, the connecting radiating part, and the third radiating part is equal to one wavelength of the third frequency band.
9. The mobile device supporting wideband operation as claimed in claim 5, wherein the total length of the feed radiator and the second radiator is equal to 0.5 times the wavelength of the fourth frequency band.
10. The mobile device supporting wideband operation as claimed in claim 5, wherein the total length of the fourth radiating part, the connecting radiating part, and the fifth radiating part is equal to 0.5 times the wavelength of the fifth frequency band.