CN113571869A - Antenna structure - Google Patents
Antenna structure Download PDFInfo
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- CN113571869A CN113571869A CN202010349300.6A CN202010349300A CN113571869A CN 113571869 A CN113571869 A CN 113571869A CN 202010349300 A CN202010349300 A CN 202010349300A CN 113571869 A CN113571869 A CN 113571869A
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- 239000002184 metal Substances 0.000 claims abstract description 116
- 239000000615 nonconductor Substances 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 4
- 238000010295 mobile communication Methods 0.000 abstract description 4
- 239000002356 single layer Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 230000005855 radiation Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 230000001939 inductive effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
- H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Abstract
An antenna structure. The antenna structure includes: a grounding metal part, a first metal part and a second metal part; the grounding metal part is provided with a slot; a feed-in point is positioned on the first metal part; the first metal part and the second metal part are both coupled to the grounding metal part and extend towards the inside of the slotted hole; the slotted hole comprises a first branch part, a second branch part, a third branch part and a fourth branch part; the first metal part is arranged between the second branch part and the third branch part of the slotted hole, and the second metal part is arranged between the third branch part and the fourth branch part of the slotted hole. The invention has at least the advantages of small size, wide frequency band, single-layer planar design, and the like, so the invention is suitable for being applied to various mobile communication devices.
Description
Technical Field
The present invention relates to an Antenna Structure (Antenna Structure), and more particularly, to a Wideband (Wideband) Antenna Structure.
Background
With the development of mobile communication technology, mobile devices have become increasingly popular in recent years, such as: portable computers, mobile phones, multimedia players and other portable electronic devices with mixed functions. To meet the demand of people, mobile devices generally have a function of wireless communication. Some cover long-range wireless communication ranges, such as: mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz, and 2500MHz used by them for communication, while some cover short-range wireless communication ranges, for example: Wi-Fi and Bluetooth systems use frequency bands of 2.4GHz, 5.2GHz, and 5.8GHz for communication.
An antenna is an indispensable element in the field of wireless communication. If the Bandwidth (Bandwidth) of the antenna for receiving or transmitting signals is insufficient, the communication quality of the mobile device is easily degraded. Therefore, how to design a small-sized and wide-band antenna element is an important issue for an antenna designer.
Therefore, it is desirable to provide an antenna structure to solve the above problems.
Disclosure of Invention
In a preferred embodiment, the present invention provides an antenna structure, including: a grounding metal part having a slot; a first metal part, wherein a feed-in point is positioned on the first metal part; and a second metal portion, wherein the first metal portion and the second metal portion are both coupled to the grounding metal portion and both extend toward the inside of the slot; wherein the slot comprises a first branch portion, a second branch portion, a third branch portion, and a fourth branch portion; wherein the first metal portion is interposed between the second branch portion and the third branch portion, and the second metal portion is interposed between the third branch portion and the fourth branch portion.
In some embodiments, the antenna structure further comprises: and a non-conductor supporting element, wherein the grounding metal part, the first metal part and the second metal part are all arranged on the non-conductor supporting element.
In some embodiments, the non-conductive support element is a plastic element, a printed circuit board, or a flexible circuit board.
In some embodiments, the first leg portion and the second leg portion of the slot are both located on one side of the feed point, and the third leg portion and the fourth leg portion of the slot are both located on an opposite side of the feed point.
In some embodiments, the first leg portion of the slot has a first closed end, the second leg portion of the slot has a second closed end, the third leg portion of the slot has a third closed end, and the fourth leg portion of the slot has a fourth closed end.
In some embodiments, the antenna structure covers a first frequency band between 2400MHz and 2500MHz, a second frequency band between 5000MHz and 6000MHz, and a third frequency band between 6000MHz and 7125 MHz.
In some embodiments, the slot further comprises a first connecting portion, a second connecting portion, a third connecting portion, and a fourth connecting portion, the first connecting portion is connected between the first leg portion and the second leg portion, the second connecting portion and the third connecting portion are both connected between the second leg portion and the third leg portion, and the fourth connecting portion is connected between the third leg portion and the fourth leg portion.
In some embodiments, the feed point is between the second connecting portion and the third connecting portion of the slot.
In some embodiments, the combination of the first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion of the slot exhibits a straight bar shape.
In some embodiments, the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion of the slot each present a straight strip shape.
In some embodiments, the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion of the slot are substantially parallel to each other.
In some embodiments, the first leg portion and the second leg portion of the slot each have a relatively large width, and the third leg portion and the fourth leg portion of the slot each have a relatively small width.
In some embodiments, the total length of the first branch portion, the first connection portion, and the second connection portion of the slot is between 0.5 and 1 wavelength of the center frequency of the first frequency band.
In some embodiments, a total length of the third branch portion and the third connecting portion of the slot is between 0.5 times and 1 times a wavelength of a center frequency of the second frequency band.
In some embodiments, a total length of the fourth branch portion, the fourth connecting portion, and the third connecting portion of the slot is between 0.5 times and 1 times a wavelength of a center frequency of the third frequency band.
In some embodiments, the second connecting portion and the third connecting portion of the slot each present a non-uniform width L-shape.
In some embodiments, the antenna structure further comprises: a third metal portion coupled to the grounding metal portion, wherein the third metal portion is disposed opposite to the first metal portion.
In some embodiments, the antenna structure further comprises: a fourth metal portion coupled to the grounding metal portion, wherein the fourth metal portion is disposed opposite to the second metal portion.
In some embodiments, the second leg portion of the slot further comprises a right angle bent end region.
In some embodiments, the third leg portion and the fourth leg portion of the slot are substantially perpendicular to each other.
Compared with the prior art, the invention has the advantages of small size, wide frequency band, single-layer planar design and the like, so the invention is very suitable for being applied to various mobile communication devices.
Drawings
Fig. 1 is a schematic diagram of an antenna structure according to an embodiment of the invention.
Fig. 2 is a voltage standing wave ratio diagram of an antenna structure according to an embodiment of the invention.
Fig. 3 is a schematic diagram of an antenna structure according to an embodiment of the invention.
Fig. 4 shows a voltage standing wave ratio diagram of an antenna structure according to an embodiment of the invention.
Fig. 5 is a schematic diagram of an antenna structure according to an embodiment of the invention.
Fig. 6 shows a voltage standing wave ratio diagram of an antenna structure according to an embodiment of the invention.
Description of the main component symbols:
100. 300, 500 antenna structure
110. 310, 510 grounding metal part
121. 321, 521 first metal part
122. 322, 522 second metal part
130. 330, 530 slotted hole
140. 340, 540 first branch portion of slot
141. 341, 541 first closed end
150. Second branch part of 350, 550 slotted hole
151. 351, 551 second closed end
160. Third leg portion of 360, 560 slot
161. 361, 561 third closed end
170. The fourth leg portion of the 370, 570 slot
171. 371, 571 fourth closed end
185. 385, 585 slotted first attachment portion
186. 386, 586 second attachment portion of slot
187. Third connecting part of 387, 587 slotted holes
188. 388, 588 slot fourth attachment
190. 390, 590 non-conductor support element
323. 523 third metal part
324. 524 fourth metal part
555 end area bent at right angle
FP1, FP2, FP3 feed-in points
FB1, FB4, FB7 first frequency band
FB2, FB5, FB8 second frequency band
FB3, FB6, FB9 third frequency band
L1, L2, L3 Length
W1, W2, W3, W4 Width
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below.
Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The term "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to achieve the basic technical result. In addition, the term "coupled" is used herein to encompass any direct or indirect electrical connection. Thus, if a first device couples to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.
The following disclosure provides many different embodiments, or examples, for implementing different features of the disclosure. The following disclosure describes specific examples of components and arrangements thereof to simplify the description. Of course, these specific examples are not intended to be limiting. For example, if the disclosure recites a first feature formed on or above a second feature, that is, embodiments that may include direct contact between the first and second features, embodiments that include additional features formed between the first and second features, such that the first and second features may not be in direct contact may also be included. In addition, the same reference signs or (and) labels may be reused in different examples disclosed below. These iterations are for simplicity and clarity and are not intended to limit the particular relationship between the various embodiments or (and) structures discussed.
Fig. 1 shows a schematic diagram of an Antenna Structure (Antenna Structure)100 according to an embodiment of the invention. The antenna structure 100 can be applied to a mobile device, for example: a Smart Phone (Smart Phone), a Tablet Computer (Tablet Computer), or a Notebook Computer (Notebook Computer). As shown in fig. 1, the antenna structure 100 includes a Ground Metal Element (Ground Metal Element)110, a first Metal Element (Metal Element)121, and a second Metal Element 122.
The ground metal portion 110 has a Slot 130, which is a non-metal region. A Feeding Point (FP 1) is located on the first metal part 121. The feed point FP1 may be coupled to the positive pole of a Signal Source (Signal Source), and the negative pole of the Signal Source may be coupled to the ground metal 110. For example, the signal source (not shown) may be a Radio Frequency (RF) module, which may be used to excite the antenna structure 100. The first metal portion 121 and the second metal portion 122 are both coupled to the grounding metal portion 110 and both extend toward the inside of the slot 130, so that the slot 130 may have an irregular shape as a whole.
The slot 130 includes a first Branch Portion (Branch Portion)140, a second Branch Portion 150, a third Branch Portion 160, and a fourth Branch Portion 170, wherein the first metal Portion 121 is interposed between the second Branch Portion 150 and the third Branch Portion 160, and the second metal Portion 122 is interposed between the third Branch Portion 160 and the fourth Branch Portion 170. For example, the first branch portion 140, the second branch portion 150, the third branch portion 160, and the fourth branch portion 170 of the slot 130 may each have a substantially straight bar shape, but are not limited thereto. In some embodiments, the first leg portion 140, the second leg portion 150, the third leg portion 160, and the fourth leg portion 170 of the slot 130 are substantially parallel to one another. The first leg portion 140 and the second leg portion 150 of the slot 130 may both be located on the same side (e.g., left side) of the feed point FP1, while the third leg portion 160 and the fourth leg portion 170 of the slot 130 may both be located on the opposite side (e.g., right side) of the feed point FP 1. In detail, the first branch portion 140 of the slot 130 has a first Closed End (Closed End)141, the second branch portion 150 of the slot 130 has a second Closed End 151, the third branch portion 160 of the slot 130 has a third Closed End 161, and the fourth branch portion 170 of the slot 130 has a fourth Closed End 171. In some embodiments, the first closed end 141, the second closed end 151, the third closed end 161, and the fourth closed end 171 are all substantially located on the same straight line.
In some embodiments, the slot 130 further includes a first Connection Portion (Connection Portion)185, a second Connection Portion 186, a third Connection Portion 187, and a fourth Connection Portion 188, wherein the first Connection Portion 185 is connected between the first leg Portion 140 and the second leg Portion 150, the second Connection Portion 186 and the third Connection Portion 187 are both connected between the second leg Portion 150 and the third leg Portion 160, and the fourth Connection Portion 188 is connected between the third leg Portion 160 and the fourth leg Portion 170. For example, the combination of the first connecting portion 185, the second connecting portion 186, the third connecting portion 187, and the fourth connecting portion 188 of the slot 130 may be substantially in the shape of a straight bar, but is not limited thereto. In detail, the feed point FP1 is interposed between the second connecting portion 186 and the third connecting portion 187 of the slot 130.
In some embodiments, the antenna structure 100 further includes a non-conductive Support Element (non-conductive Support Element) 190. The grounding metal portion 110, the first metal portion 121, and the second metal portion 122 may form a Planar Structure and are disposed on the non-conductive supporting element 190. The non-conductive support element 190 can be a plastic element, a Printed Circuit Board (PCB), or a Flexible Circuit Board (FCB). For example, if the non-conductive supporting device 190 is a plastic housing, the grounding metal portion 110, the first metal portion 121, and the second metal portion 122 can be attached to the non-conductive supporting device 190 by Laser Direct Structuring (LDS) technology.
Fig. 2 shows a Voltage Standing Wave Ratio (VSWR) diagram of the antenna structure 100 according to an embodiment of the invention, wherein the horizontal axis represents operating frequency (MHz) and the vertical axis represents the VSWR. According to the measurement results shown in fig. 2, the antenna structure 100 can cover a first Frequency Band (Frequency Band) FB1, a second Frequency Band FB2, and a third Frequency Band FB3, wherein the first Frequency Band FB1 is between 2400MHz and 2500MHz, the second Frequency Band FB2 is between 5000MHz and 6000MHz, and the third Frequency Band FB3 is between 6000MHz and 7125 MHz. In some embodiments, the Radiation Gain (Radiation Gain) of the antenna structure 100 in the first frequency band FB1 may be up to about-2.61 dB, the Radiation Gain of the antenna structure 100 in the second frequency band FB2 may be up to about-4 dB, and the Radiation Gain of the antenna structure 100 in the third frequency band FB3 may be up to about-3.71 dB. Thus, the antenna structure 100 will support at least the broadband operation of both Wi-Fi5(IEEE 802.11ac) and Wi-Fi 6(IEEE 802.11ax) standards.
In some embodiments, the principles of operation of the antenna structure 100 may be as follows. The first branch portion 140, the first connection portion 185, and the second connection portion 186 of the slot 130 can be jointly excited to generate the first frequency band FB 1. The third branch portion 160 and the third connecting portion 187 of the slot 130 can be excited together to generate the aforementioned second frequency band FB 2. The fourth branch portion 170, the fourth connecting portion 188 and the third connecting portion 187 of the slot 130 can jointly excite the third frequency band FB 3. The first metal part 121 may provide an inductive (inductive) characteristic to fine tune an Impedance Matching (Impedance Matching) of the first frequency band FB 1. The second metal portion 122 may also provide an inductive characteristic to fine tune the impedance matching of the second frequency band FB2 and the third frequency band FB 3. In addition, the second branch portion 150 of the slot 130 can simultaneously fine tune the impedance matching of the first frequency band FB1, the second frequency band FB2, and the third frequency band FB 3.
In some embodiments, the element dimensions of the antenna structure 100 may be as follows. The total length L1 of the first branch portion 140, the first connection portion 185, and the second connection portion 186 of the slot 130 (i.e., the total length L1 from the feed point FP1, through the second connection portion 186 and the first connection portion 185, and to the first closed end 141 of the first branch portion 140) may be between 0.5 times and 1 time the center Frequency (Central Frequency) of the first Frequency band FB1 of the antenna structure 100 (0.5 λ and 1 λ). The total length L2 of the third branch portion 160 and the third connecting portion 187 of the slot 130 (i.e., the total length L2 from the feed point FP1, through the third connecting portion 187, and to the third closed end 161 of the third branch portion 160) may be between 0.5 times and 1 time of the central frequency of the second frequency band FB2 of the antenna structure 100 (0.5 λ -1 λ). The total length L3 of the fourth branch portion 170, the fourth connecting portion 188, and the third connecting portion 187 of the slot 130 (i.e., the total length L3 from the feed point FP1, through the third connecting portion 187 and the fourth connecting portion 188, and to the fourth closed end 171 of the fourth branch portion 170) may be between 0.5 and 1 times the center frequency of the third frequency band FB3 of the antenna structure 100 (0.5 λ -1 λ). Both the first leg portion 140 and the second leg portion 150 (or the first closed end 141 and the second closed end 151) of the slot 130 have relatively large widths W1, W2, while both the third leg portion 160 and the fourth leg portion 170 (or the third closed end 161 and the fourth closed end 171) of the slot 130 have relatively small widths W3, W4. The widths W1, W2, W3 and W4 may be all greater than or equal to 0.3 mm. For example, the width W1 of the first leg portion 140 may be greater than 3 times the width W4 of the fourth leg portion 170, while the width W2 of the second leg portion 150 may be greater than 2 times the width W3 of the third leg portion 160. The thickness of the non-conductive support element 190 may be greater than or equal to 0.2 mm. The overall length of the antenna structure 100 is approximately 8mm and the overall width is approximately 25 mm. The above size ranges are found from multiple experimental results, which help to optimize the operating Bandwidth (Operation Bandwidth) and impedance matching of the antenna structure 100.
Various alternative embodiments of the antenna structure 100 will be described below. It must be understood that these drawings and descriptions are only exemplary and are not intended to limit the scope of the present invention.
Fig. 3 is a diagram illustrating an antenna structure 300 according to an embodiment of the invention. Fig. 3 is similar to fig. 1. In the embodiment of fig. 3, the antenna structure 300 includes a ground metal portion 310, a first metal portion 321, a second metal portion 322, a third metal portion 323, a fourth metal portion 324, and a non-conductor support element 390, wherein a feed point FP2 is located on the first metal portion 321. In detail, the grounding metal portion 310 has a slot 330, wherein the slot 330 includes: a first leg portion 340 having a first closed end 341, a second leg portion 350 having a second closed end 351, a third leg portion 360 having a third closed end 361, a fourth leg portion 370 having a fourth closed end 371, a first connecting portion 385, a second connecting portion 386, a third connecting portion 387, and a fourth connecting portion 388.
The main difference from the antenna structure 100 of the embodiment of fig. 1 is that the first metal portion 321 may substantially have an L-shape, the second metal portion 322 may substantially have a straight strip shape, the third metal portion 323 may substantially have a smaller square shape, and the fourth metal portion 324 may substantially have a larger square shape. In addition, the second connecting portion 386 and the third connecting portion 387 of the slot 330 may each substantially assume a non-uniform width L-shape. The third metal portion 323 and the fourth metal portion 324 are both coupled to the grounding metal portion 310 and both extend toward the inside of the slot 330. The third metal part 323 may be disposed opposite to the first metal part 321, and may be separated by the second connection part 386 of the slot 330. The fourth metal portion 324 may be disposed opposite to the second metal portion 322, and may be separated by the fourth connection portion 388 of the slot 330.
Fig. 4 shows a voltage standing wave ratio diagram of the antenna structure 300 according to an embodiment of the invention, wherein the horizontal axis represents operating frequency (MHz) and the vertical axis represents voltage standing wave ratio. According to the measurement results shown in fig. 4, the antenna structure 300 covers a first frequency band FB4, a second frequency band FB5, and a third frequency band FB6, wherein the first frequency band FB4 is between 2400MHz and 2500MHz, the second frequency band FB5 is between 5000MHz and 6000MHz, and the third frequency band FB6 is between 6000MHz and 7125 MHz. In some embodiments, the antenna structure 300 may have a radiation gain of up to about-3.02 dB in the first frequency band FB4, a radiation gain of up to about-3.22 dB in the second frequency band FB5, and a radiation gain of up to about-3.43 dB in the third frequency band FB 6. Generally, the addition of the third metal part 323 and the fourth metal part 324 can provide an additional inductive characteristic and can simultaneously fine tune the impedance matching of the first frequency band FB4, the second frequency band FB5, and the third frequency band FB 6. The remaining features of the antenna structure 300 of fig. 3 are similar to those of the antenna structure 100 of fig. 1, so that similar operation effects can be achieved in both embodiments.
Fig. 5 is a diagram illustrating an antenna structure 500 according to an embodiment of the invention. Fig. 5 is similar to fig. 1. In the embodiment of fig. 5, the antenna structure 500 includes a grounding metal portion 510, a first metal portion 521, a second metal portion 522, a third metal portion 523, a fourth metal portion 524, and a non-conductor supporting element 590, wherein a feeding point FP3 is located on the first metal portion 521. In detail, the grounding metal portion 510 has a slot 530, wherein the slot 530 includes: a first leg portion 540 having a first closed end 541, a second leg portion 550 having a second closed end 551, a third leg portion 560 having a third closed end 561, a fourth leg portion 570 having a fourth closed end 571, a first connection portion 585, a second connection portion 586, a third connection portion 587, and a fourth connection portion 588.
The main difference from the antenna structure 100 of the embodiment of fig. 1 is that the first metal part 521 may substantially have an L-shape, the second metal part 522 may substantially have a larger square shape, the third metal part 523 may substantially have a smaller square shape, and the fourth metal part 524 may substantially have an elongated rectangular shape. In addition, the second leg portion 550 of the slot 530 may also include a right angle bent end region 555 (adjacent to the second closed end 551), and the third leg portion 560 and the fourth leg portion 570 of the slot 530 may be substantially perpendicular to each other. The third metal portion 523 and the fourth metal portion 524 are both coupled to the grounding metal portion 510 and both extend toward the inside of the slot 530. The third metal portion 523 may be disposed opposite to the first metal portion 521, and may be separated from the first metal portion by a second connecting portion 586 of the slot 530. The fourth metal portion 524 may be disposed opposite to the second metal portion 522, and may be separated from the second metal portion by a fourth branch portion 570 of the slot 530.
Fig. 6 shows a voltage standing wave ratio diagram of an antenna structure 500 according to an embodiment of the invention, wherein the horizontal axis represents operating frequency (MHz) and the vertical axis represents voltage standing wave ratio. According to the measurement results shown in fig. 6, the antenna structure 500 covers a first frequency band FB7, a second frequency band FB8, and a third frequency band FB9, wherein the first frequency band FB7 is between 2400MHz and 2500MHz, the second frequency band FB8 is between 5000MHz and 6000MHz, and the third frequency band FB9 is between 6000MHz and 7125 MHz. In some embodiments, the radiation gain of the antenna structure 500 in the first frequency band FB7 may be up to about-2.51 dB, the radiation gain of the antenna structure 500 in the second frequency band FB8 may be up to about-3.57 dB, and the radiation gain of the antenna structure 500 in the third frequency band FB9 may be up to about-3.62 dB. Generally speaking, the right-angled bent end region 555 of the second branch portion 550 of the slot 530 can fine-tune the impedance matching of the second frequency band FB8 and the third frequency band FB9, and the third branch portion 560 and the fourth branch portion 570 substantially orthogonal to each other can increase the operating bandwidth of the second frequency band FB8 and the third frequency band FB 9. The remaining features of the antenna structure 500 of fig. 5 are similar to those of the antenna structure 100 of fig. 1, so that similar operation effects can be achieved in both embodiments.
The present invention provides a novel antenna structure. Compared with the prior art, the invention has the advantages of small size, wide frequency band, single-layer planar design and the like, so the invention is very suitable for being applied to various mobile communication devices.
It is noted that the sizes, shapes and frequency ranges of the above-mentioned components are not limitations of the present invention. The antenna designer can adjust these settings according to different needs. The antenna structure of the present invention is not limited to the states illustrated in fig. 1 to 6. The present invention may include only any one or more features of any one or more of the embodiments of fig. 1-6. In other words, not all illustrated features may be implemented in the antenna structure of the present invention at the same time.
Ordinal numbers such as "first," "second," "third," etc., in the specification and claims are not to be given a sequential order, but are merely used to identify two different elements having the same name.
The present invention is not limited to the above embodiments, but rather, various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is to be determined by the appended claims.
Claims (20)
1. An antenna structure, comprising:
a grounding metal part, which is provided with a slot;
a first metal part, wherein a feed-in point is positioned on the first metal part; and
a second metal portion, wherein the first metal portion and the second metal portion are both coupled to the grounding metal portion and both extend toward the inside of the slot;
wherein the slot comprises a first branch portion, a second branch portion, a third branch portion, and a fourth branch portion;
wherein the first metal portion is interposed between the second branch portion and the third branch portion, and the second metal portion is interposed between the third branch portion and the fourth branch portion.
2. The antenna structure of claim 1, further comprising:
and a non-conductor supporting element, wherein the grounding metal part, the first metal part and the second metal part are all arranged on the non-conductor supporting element.
3. The antenna structure of claim 2, wherein the non-conductive supporting element is a plastic element, a printed circuit board, or a flexible circuit board.
4. The antenna structure of claim 1, wherein the first branch portion and the second branch portion of the slot are both located on one side of the feed point, and the third branch portion and the fourth branch portion of the slot are both located on an opposite side of the feed point.
5. The antenna structure of claim 1, wherein the first branch portion of the slot has a first closed end, the second branch portion of the slot has a second closed end, the third branch portion of the slot has a third closed end, and the fourth branch portion of the slot has a fourth closed end.
6. The antenna structure of claim 1, wherein the antenna structure covers a first frequency band between 2400MHz and 2500MHz, a second frequency band between 5000MHz and 6000MHz, and a third frequency band between 6000MHz and 7125 MHz.
7. The antenna structure of claim 6, wherein the slot further comprises a first connection portion, a second connection portion, a third connection portion, and a fourth connection portion, the first connection portion being connected between the first branch portion and the second branch portion, the second connection portion and the third connection portion both being connected between the second branch portion and the third branch portion, and the fourth connection portion being connected between the third branch portion and the fourth branch portion.
8. The antenna structure of claim 7, wherein the feed point is between the second connecting portion and the third connecting portion of the slot.
9. The antenna structure of claim 7, wherein a combination of the first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion of the slot exhibits a straight strip shape.
10. The antenna structure of claim 1, wherein the first branch portion, the second branch portion, the third branch portion, and the fourth branch portion of the slot each present a straight strip shape.
11. The antenna structure of claim 1, wherein the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion of the slot are substantially parallel to each other.
12. The antenna structure of claim 1, wherein the first branch portion and the second branch portion of the slot each have a relatively large width, and the third branch portion and the fourth branch portion of the slot each have a relatively small width.
13. The antenna structure of claim 7, wherein the total length of the first branch portion, the first connecting portion, and the second connecting portion of the slot is between 0.5 times and 1 times the wavelength of the center frequency of the first frequency band.
14. The antenna structure of claim 7, wherein the total length of the third branch portion and the third connecting portion of the slot is between 0.5 times and 1 times the wavelength of the center frequency of the second frequency band.
15. The antenna structure of claim 7, wherein the total length of the fourth branch portion, the fourth connecting portion, and the third connecting portion of the slot is between 0.5 times and 1 times the wavelength of the center frequency of the third frequency band.
16. The antenna structure according to claim 7, wherein the second connection portion and the third connection portion of the slot each exhibit an L-shape of unequal width.
17. The antenna structure of claim 1, further comprising:
a third metal portion coupled to the ground metal portion, wherein the third metal portion is disposed opposite to the first metal portion.
18. The antenna structure of claim 17, further comprising:
a fourth metal portion coupled to the ground metal portion, wherein the fourth metal portion is disposed opposite to the second metal portion.
19. The antenna structure of claim 1 wherein the second leg portion of the slot further comprises a right angle bent end region.
20. The antenna structure of claim 1 wherein the third leg portion and the fourth leg portion of the slot are substantially perpendicular to each other.
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|---|---|---|---|
| CN202010349300.6A CN113571869A (en) | 2020-04-28 | 2020-04-28 | Antenna structure |
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| CN202010349300.6A CN113571869A (en) | 2020-04-28 | 2020-04-28 | Antenna structure |
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| CN113571869A true CN113571869A (en) | 2021-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051146A (en) * | 2022-06-16 | 2022-09-13 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343208B1 (en) * | 1998-12-16 | 2002-01-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Printed multi-band patch antenna |
| US20060164314A1 (en) * | 2005-01-25 | 2006-07-27 | Alps Electric Co., Ltd. | Compact antenna device radiating circularly polarized wave |
| US7358903B1 (en) * | 2007-04-02 | 2008-04-15 | Cheng Uei Precision Industry Co., Ltd. | Triple-band embedded antenna |
| TW200924283A (en) * | 2007-11-22 | 2009-06-01 | Arcadyan Technology Corp | Dual band antenna |
| CN102738559A (en) * | 2011-04-11 | 2012-10-17 | 宏碁股份有限公司 | Communication electronic device and antenna structure thereof |
| US20130027254A1 (en) * | 2011-07-25 | 2013-01-31 | Heikki Korva | Multiband slot loop antenna apparatus and methods |
| US20130063321A1 (en) * | 2011-08-26 | 2013-03-14 | Leonard Ruvinsky | Multi-arm conformal slot antenna |
| US20160285167A1 (en) * | 2015-03-24 | 2016-09-29 | Htc Corporation | Mobile device and manufacturing method thereof |
| TW201801399A (en) * | 2016-06-28 | 2018-01-01 | 國立高雄師範大學 | Open slot antenna |
| TWI646727B (en) * | 2017-06-14 | 2019-01-01 | 宏碁股份有限公司 | Mobile device |
-
2020
- 2020-04-28 CN CN202010349300.6A patent/CN113571869A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343208B1 (en) * | 1998-12-16 | 2002-01-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Printed multi-band patch antenna |
| US20060164314A1 (en) * | 2005-01-25 | 2006-07-27 | Alps Electric Co., Ltd. | Compact antenna device radiating circularly polarized wave |
| US7358903B1 (en) * | 2007-04-02 | 2008-04-15 | Cheng Uei Precision Industry Co., Ltd. | Triple-band embedded antenna |
| TW200924283A (en) * | 2007-11-22 | 2009-06-01 | Arcadyan Technology Corp | Dual band antenna |
| CN102738559A (en) * | 2011-04-11 | 2012-10-17 | 宏碁股份有限公司 | Communication electronic device and antenna structure thereof |
| US20130027254A1 (en) * | 2011-07-25 | 2013-01-31 | Heikki Korva | Multiband slot loop antenna apparatus and methods |
| US20130063321A1 (en) * | 2011-08-26 | 2013-03-14 | Leonard Ruvinsky | Multi-arm conformal slot antenna |
| US20160285167A1 (en) * | 2015-03-24 | 2016-09-29 | Htc Corporation | Mobile device and manufacturing method thereof |
| TW201801399A (en) * | 2016-06-28 | 2018-01-01 | 國立高雄師範大學 | Open slot antenna |
| TWI646727B (en) * | 2017-06-14 | 2019-01-01 | 宏碁股份有限公司 | Mobile device |
Non-Patent Citations (3)
| Title |
|---|
| ABDULLAH HASKOU: "Compact, Multi-Band, Slot Antenna", 《2019 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND USNC-URSI RADIO SCIENCE MEETING》 * |
| 张涌萍: "具有优越陷波选择性和带宽的超宽带缝隙天线", 《 现代电子技术》 * |
| 曾会勇: "双/多频平面天线单元的研究现状及进展", 《2017年全国天线年会论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051146A (en) * | 2022-06-16 | 2022-09-13 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
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