TW202103376A - Rectangular triple-band antenna device - Google Patents

Abstract

A rectangular triple-band antenna device is provided, which includes a first radiating conductor pattern and a second radiating conductor pattern. The first radiating conductor pattern orderly includes a first head block, a first connection channel and a first rear block. The first connection channel extends from one side of a width direction perpendicular to a length direction and connects to the first rear block. The second radiating conductor pattern is disposed between the first head block and the first rear block in the length direction, and orderly includes a second head block and a second connection channel. The second head block is adjacent to one end of the first head block. The second connection channel is adjacent to the first connection channel; the second connection channel is formed to be continuous hairpin turns and extends from the second head block to the second rear block in the length direction.

Description

Rectangular tri-band antenna device

The present invention relates to an antenna device, in particular to a rectangular three-band antenna device.

Due to the advancement of technology, various mobile electronic devices and wireless communication devices, such as smart phones, notebook computers, wireless access points and smart moderns, are developing rapidly. In order to meet the requirements of the above-mentioned various electronic devices, various antennas have been developed to enable the electronic devices to achieve better performance. However, in order to achieve better performance, the existing broadband antenna may need to have a three-dimensional structure, which makes the structure complex and increases its manufacturing cost.

In addition, since the existing broadband antennas may need to have a three-dimensional structure, they are easily deformed due to external forces, which affects their performance.

In addition, due to the complex structure of the existing broadband antenna, its characteristics are also difficult to adjust, making it difficult to meet different requirements, and its application is also greatly restricted.

Furthermore, the existing broadband antennas may require an additional ground terminal, and therefore need to be installed in a specific location of the device, which is extremely inconvenient to use.

Therefore, how to propose an antenna that can effectively improve the various limitations of existing broadband antennas has become an urgent problem.

In view of the above-mentioned problems of the prior art, one of the objectives of the present invention is to provide a rectangular three-band antenna device to solve the various limitations of the existing broadband antenna.

According to one of the objectives of the present invention, a rectangular tri-band antenna device is provided, which includes a first radiating conductor pattern and a second radiating conductor pattern. The first radiating conductor pattern is sequentially arranged with a first starting block, a first connecting channel and a first ending block in a length direction. The first connecting channel extends from one side in the width direction perpendicular to the length direction toward the first terminal block and is connected to the first terminal block. The second radiating conductor pattern is located between the first starting block and the first ending block in the length direction, and is sequentially provided with a second starting block and a second connecting channel. The second starting block is adjacent to one end of the first starting block and is provided with a signal feed point. The second connecting channel is adjacent to the first connecting channel and extends from the second starting block to the second ending block in the shape of a continuous hairpin in the length direction. Wherein, the length of the second start block and the second end block in the length direction, plus the actual length of the second link channel in the length direction and the width direction, is between the corresponding high-band high-frequency wavelength Between 0.3 and 0.7 times. The second radiating conductor pattern is sequentially provided with a second connecting channel and a third connecting channel in the width direction. The third connecting passage extends from the second starting block to the third ending block in the length direction, and the total length of the second starting block, the third connecting passage and the third ending block in the length direction is defined by It is between 0.3 and 0.7 times the wavelength of the corresponding high frequency band and low frequency. The first radiating conductor pattern further includes a signal ground point; the signal ground point is arranged at an end of the first starting block adjacent to the second starting block. The total length of the first radiating conductor pattern in the length direction from the signal grounding point to the first connecting channel to the end of the first terminal block farthest from the second radiating conductor pattern is between 0.3 and 0.7 times the wavelength of the corresponding low frequency band between.

In a preferred embodiment, the first connecting channel is sequentially provided with a first part, a second part, a third part and a fourth part in the length direction, and the width of the fourth part in the width direction Greater than the width of the first part, the second part and the third part in the width direction, the width of the first part in the width direction is greater than the width of the second part and the third part in the width direction, and the third part The width in the width direction is greater than the width of the second part in the width direction.

In a preferred embodiment, the length of the second part in the longitudinal direction is greater than the length of the first part, the third part and the fourth part in the longitudinal direction, and the length of the fourth part in the longitudinal direction is greater than that of the first part. The length of the first part and the third part in the length direction, the length of the first part in the length direction is greater than the length of the third part in the length direction.

In a preferred embodiment, the rectangular tri-band antenna device further includes a first impedance matching adjustment zone, and the first impedance matching adjustment zone is sequentially provided with a first impedance matching part and a second impedance matching part along the length direction. , The first impedance matching part is arranged on a side of the second part, and the second impedance matching part is arranged on a side of the third part.

In a preferred embodiment, the first end block is sequentially provided with a first part and a second part in the width direction, and the length of the second part in the length direction is greater than that of the first part in the length direction. Length, and the width of the first part in the width direction is greater than the width of the second part in the width direction.

In a preferred embodiment, the second connecting channel is provided with a first bending portion, a second bending portion, a third bending portion, a fourth bending portion, and a fifth bending portion in sequence along the length direction. Form the shape of a continuous hairpin bend.

In a preferred embodiment, the first bending portion, the third bending portion, and the fifth bending portion are facing and adjacent to the third connecting channel, and the second bending portion and the fourth bending portion are facing and adjacent to In the second connecting channel.

In a preferred embodiment, the length of the third connecting channel in the longitudinal direction is greater than the length of the third terminal block in the longitudinal direction, and the width of the third connecting channel in the width direction is greater than the width of the third terminal block in the width direction .

In a preferred embodiment, the rectangular tri-band antenna device further includes a second impedance matching adjustment area, and the second impedance matching adjustment area is connected to the second starting block and extends in the direction of the second connecting channel.

In a preferred embodiment, the first starting block, the first connecting channel and the first ending block form a notch, and the second radiation conductor pattern is disposed in the notch.

In summary, according to the rectangular three-band antenna device of the present invention, it can have one or more of the following advantages:

(1) In an embodiment of the present invention, a rectangular tri-band antenna device includes a first radiating conductor pattern, a second radiating conductor pattern, a first impedance matching adjustment area and a second impedance matching adjustment area, and the first radiating conductor pattern, The second radiating conductor pattern, the first impedance matching adjustment area and the second impedance matching adjustment area have a special structure design, so that the characteristics of the rectangular tri-band antenna device can be easily adjusted to meet various needs, and the application is more extensive.

(2) In an embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, so the structure is simpler, and its manufacturing cost can be further reduced.

(3) In an embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, so it will not be deformed by external forces, so that it can always exert the best performance.

(4) In an embodiment of the present invention, the rectangular tri-band antenna device does not require an additional ground terminal, so it can be set at any position of the device, which is more convenient to use.

(5) In an embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, and has a special structural design, so its size can be greatly reduced, making it applicable to devices with limited space.

Hereinafter, the embodiments of the rectangular tri-band antenna device according to the present invention will be described with reference to related drawings. For clarity and convenience of the drawings, the components in the drawings may be exaggerated or reduced in size and proportion. . In the following description and/or the scope of the patent application, when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or an intervening element may be present; and when referring to an element When "directly connected" or "directly coupled" to another element, there is no intervening element, and other words used to describe the relationship between elements or layers should be interpreted in the same way. To facilitate understanding, the same elements in the following embodiments are described with the same symbols.

Please refer to FIG. 1, which is a structural diagram of the rectangular tri-band antenna device according to the first embodiment of the present invention. As shown in FIG. 1, the rectangular tri-band antenna device 1 includes a first radiation conductor pattern 11 and a second radiation conductor pattern 12.

The first radiating conductor pattern 11 is sequentially provided with a first starting block 111, a first connecting channel 112, and a first ending block 113 in the longitudinal direction D1. The first connecting channel 112 is connected to the first starting block 111, and extends from one side in the width direction D2 toward the first end block 113 and is connected to the first end block 113; wherein, the length direction D1 and the width direction D2 Perpendicular to each other. The first starting block 111, the first connecting channel 112, and the first ending block 113 form a notch S. In addition, the first radiating conductor pattern 11 also includes a signal ground point GP. The signal ground point GP is disposed at one end of the first starting block 111 adjacent to the second starting block 121; therefore, the first starting block 111 is also at the same time As an access area, and provide access to the area function.

Please refer to FIG. 2, which is a schematic diagram of the first connection channel of the rectangular tri-band antenna device according to the first embodiment of the present invention. As shown in FIG. 2, in the longitudinal direction D1, the first connecting passage 112 is sequentially provided with a first portion 1121, a second portion 1122, a third portion 1123, and a fourth portion 1124. As far as the width in the width direction D2 is concerned, the fourth part 1124>the first part 1121>the third part 1123>the second part 1122; therefore, the first connecting channel 112 firstly narrows and then extends gradually. Wide extension. In terms of the length in the longitudinal direction D1, the second part 1122>the fourth part 1124>the first part 1121>the third part 1123.

In addition, the rectangular tri-band antenna device 1 further includes a first impedance matching adjustment area I1. In the length direction D1, the first impedance matching adjustment area I1 is sequentially provided with a first impedance matching part and a second impedance matching part. The first impedance matching part is arranged on one side of the second part 1122, and the second impedance matching part is arranged on one side of the third part 1123.

Please refer to FIG. 3, which is a schematic diagram of the first terminal block of the rectangular tri-band antenna device according to the first embodiment of the present invention. As shown in FIG. 3, in the width direction D2, the first end block 113 is sequentially provided with a first portion 1131 and a second portion 1132. The length of the second portion 1132 in the longitudinal direction D1 is greater than the length of the first portion 1131 in the longitudinal direction D1, and the width of the first portion 1131 in the width direction D2 is greater than the width of the second portion 1132 in the width direction D2.

As shown in FIG. 1, the second radiating conductor pattern 12 is disposed in the above-mentioned notch S, and is located between the first starting block 111 and the first ending block 113 in the length direction D1. In the length direction D1, the second radiating conductor pattern 12 is sequentially provided with a second starting block 121, a second connecting channel 122, and a second ending block 123. The second start block 121 is adjacent to one end of the first start block 111 and is provided with a signal feed point FP. The second connecting channel 122 is adjacent to the first connecting channel 112 and connected to the second starting block 121. Wherein, the second connecting channel 122 extends from the second start block 121 to the second end block 123 in the length direction D1, and generates a plurality of bends on the extended path to form a continuous hairpin bend shape.

In addition, the second radiating conductor pattern 12 is provided with a third connection channel 124 in the width direction D2 in addition to the aforementioned second connection channel 122. The third connecting channel 124 is connected to the second start block 121 and extends from the second start block 121 to the third end block 125 in the length direction D1.

Please refer to FIG. 4, which is a schematic diagram of the second connection channel of the rectangular tri-band antenna device according to the first embodiment of the present invention. As shown in FIG. 4, the second connecting passage 122 respectively extends to the second connecting passage 122 and the third connecting passage 124 and generates a plurality of bends. Wherein, the second connecting channel 122 sequentially includes a first bending portion 1221, a second bending portion 1222, a third bending portion 1223, a fourth bending portion 1224, and a fifth bending portion 1225 in the longitudinal direction D1; The first bending portion 1221, the third bending portion 1223, and the fifth bending portion 1225 face the third connecting passage 124, and the second bending portion 1222 and the fourth bending portion 1224 face and are adjacent to the second connecting passage 122 .

Please refer to FIG. 5, which is a schematic diagram of the current path of the rectangular tri-band antenna device according to the first embodiment of the present invention. As shown in Figure 5, the arrow A1 represents the first type of current path; the first radiating conductor pattern 11 extends from the signal ground point GP to the first connection channel 112 in the length direction D1 to the first terminal block 113, which is the farthest away from the second radiation. The total length of one end of the conductor pattern 12 (as indicated by the arrow A1 in FIG. 2) is approximately 0.3 to 0.7 times the wavelength of the low frequency band of the rectangular tri-band antenna device 1.

Arrow A2 represents the second current path; the length of the second start block 121 and the second end block 123 in the length direction D1 plus the actual length of the second connecting channel 122 in the length direction D1 and the width direction D2 The total length of is approximately between 0.3 and 0.7 times the high-frequency and high-frequency wavelength of the rectangular three-band antenna device 1.

Arrow A3 represents the third current path; the total length of the second starting block 121, the third connecting channel 124, and the third end block 125 in the length direction D1 (as shown by the arrow A3 in Figure 2) is approximately It is between 0.3 and 0.7 times the wavelength of the high-frequency and low-frequency of the rectangular three-frequency antenna device 1.

Please refer to FIG. 6, which is a simulation result diagram of the rectangular tri-band antenna device according to the first embodiment of the present invention. As shown in the figure, the horizontal axis represents frequency (GHz), and the vertical axis represents reflection loss (dB). The curve L1 represents the high-band high frequency, the curve L2 represents the low-band frequency, the curve L3 represents the high-band low frequency, and the straight line SL is the -10dB standard line. In this embodiment, the high-band frequency is LTE-Band 7 (2500-2690 MHz); the low-band frequency is LTE-Band 28 (703-803 MHz); the high-band frequency is LTE-Band 3 (1710-1880 MHz). It can be clearly seen from the figure that the reflection losses of the high-band high-frequency, high-band low-frequency, and low-band frequency all meet the standard; therefore, the rectangular three-band antenna device 1 can indeed achieve excellent performance.

It can be seen from the above that the rectangular tri-band antenna device 1 including the first radiating conductor pattern 11 and the second radiating conductor pattern 12 has a special structure design, and the rectangular tri-band antenna device 1 may also include a first impedance matching adjustment region I1 and a second impedance matching adjustment region I1. The impedance matching adjustment zone I2 makes it easy to adjust the characteristics of the rectangular tri-band antenna device 1, so it can be applied to various operating frequencies, such as LTE-Band 28 (703~803MHz), LTE-Band 20 (791~862MHz), LTE-Band 1 (1920~2170MHz), LTE-Band 3 (1710~1880MHz), LTE-Band 4 (1710~2155MHz), LTE-Band 7 (2500~2690MHz), LTE-Band 40 (2300~2400MHz), LTE-Band 38 (2570~2620MHz) and UMTS (1920~2170MHz). Therefore, the rectangular tri-band antenna device 1 can meet the requirements of various wireless network devices.

In addition, the rectangular tri-band antenna device 1 can be realized through a printed antenna, so it does not have a three-dimensional structure, so that the manufacturing cost can be further reduced, the size can be further reduced, and it will not be deformed due to external forces. In summary, the rectangular three-band antenna device 1 can indeed improve the shortcomings of the existing broadband antenna.

It is worth mentioning that the existing broadband antenna may need to have a three-dimensional structure, which makes the structure complicated and increases its manufacturing cost. According to the embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, so the structure is simpler, and its manufacturing cost can be further reduced.

In addition, since the existing broadband antenna may need to have a three-dimensional structure, it is easy to deform due to external forces, which affects its performance. On the contrary, according to the embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, so it will not be deformed by external forces, so that it can always exert the best performance.

In addition, due to the complex structure of the existing broadband antenna, its characteristics are also difficult to adjust, making it difficult to meet different requirements, and its application is also greatly restricted. In contrast, according to an embodiment of the present invention, the rectangular tri-band antenna device includes a first radiating conductor pattern, a second radiating conductor pattern, a first impedance matching adjustment area and a second impedance matching adjustment area, and the first radiating conductor pattern and the second radiating conductor pattern The two radiating conductor patterns, the first impedance matching adjustment area and the second impedance matching adjustment area have a special structure design, so that the characteristics of the rectangular tri-band antenna device can be easily adjusted to meet various needs, and the application is more extensive.

In addition, the existing broadband antennas may require an additional ground terminal, and therefore need to be installed in a specific location of the device, which is extremely inconvenient to use. On the contrary, according to the embodiment of the present invention, the rectangular tri-band antenna device does not require an additional ground terminal, so it can be set at any position of the device, which is more convenient to use.

Furthermore, according to the embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, and has a special structural design, so its size can be greatly reduced, making it applicable to devices with limited space. It can be seen from the above that the printed multi-frequency antenna of the embodiment of the present invention can indeed achieve excellent technical effects.

Please refer to FIG. 7, which is a structural diagram of a rectangular tri-band antenna device according to a second embodiment of the present invention. As shown in the figure, the rectangular tri-band antenna device 1 includes a first radiation conductor pattern 11 and a second radiation conductor pattern 12.

The structure of the rectangular three-band antenna device 1 is similar to that of the first embodiment, so it will not be described here. The difference from the first embodiment is that in this embodiment, the size of the first impedance matching adjustment area I1 has been adjusted; the size of the first impedance matching adjustment area I1 is related to the impedance matching of the first radiating conductor pattern 11. Therefore, changing the size of the first impedance matching adjustment region I1 can adjust the impedance matching of the first radiating conductor pattern 11.

Please refer to FIG. 8, which is a structural diagram of a rectangular tri-band antenna device according to a second embodiment of the present invention. As shown in the figure, the rectangular tri-band antenna device 1 includes a first radiation conductor pattern 11 and a second radiation conductor pattern 12.

The structure of the rectangular three-band antenna device 1 is similar to that of the first embodiment, so it will not be described here. The difference from the first embodiment is that in this embodiment, the size of the second impedance matching adjustment area I2 has been adjusted; the size of the second impedance matching adjustment area I2 is related to the impedance matching of the second radiating conductor pattern 12. Therefore, changing the size of the second impedance matching adjustment region I2 can adjust the impedance matching of the second radiating conductor pattern 12.

In summary, according to the embodiment of the present invention, the rectangular tri-band antenna device includes a first radiating conductor pattern, a second radiating conductor pattern, a first impedance matching adjustment area, and a second impedance matching adjustment area, and the first radiating conductor pattern The second radiating conductor pattern, the first impedance matching adjustment area and the second impedance matching adjustment area have a special structure design, so that the characteristics of the rectangular tri-band antenna device can be easily adjusted to meet various needs, and the application is more extensive.

In addition, according to the embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, so the structure is simpler, and its manufacturing cost can be further reduced.

In addition, according to the embodiments of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, so it will not be deformed by external forces, so that it can always exert the best performance.

In addition, according to the embodiment of the present invention, the rectangular tri-band antenna device does not require an additional ground terminal, so it can be set at any position of the device, which is more convenient to use.

Furthermore, according to the embodiment of the present invention, the rectangular tri-band antenna device does not need to be implemented in a three-dimensional structure, and has a special structural design, so its size can be greatly reduced, making it applicable to devices with limited space.

It can be seen that the present invention has indeed achieved the desired enhancement effect under the breakthrough of the previous technology, and it is not easy to think about by those who are familiar with the art. Its progressiveness and practicability have clearly met the requirements of patent application. I filed a patent application in accordance with the law, and I implore your office to approve this invention patent application to encourage creativity and to feel good.

The above description is only illustrative, and not restrictive. Any other equivalent modifications or changes that do not depart from the spirit and scope of the present invention should be included in the scope of the appended patent application.

1: Rectangular tri-band antenna device 11: The first radiating conductor pattern 111: The first starting block 112: The first link channel 1121: The first part of the first link channel 1122: The second part of the first link channel 1123: The third part of the first link channel 1124: The fourth part of the first link channel 113: First End Block 1131: The first part of the first end block 1132: The second part of the first end block 12: The second radiating conductor pattern 121: The second starting block 122: Second Link Channel 1221: The first bending part 1222: second bending part 1223: third bending part 1224: Fourth bending part 1225: Fifth bending part 123: second end block 124: Third Link Channel 125: Third End Block I1: The first impedance matching adjustment zone I2: The second impedance matching adjustment zone GP: Signal ground point FP: signal feed point S: Notch D1: length direction D2: width direction A1~A3: Arrow L1~L3: Curve SL: Standard line

Figure 1 is a structural diagram of a rectangular tri-band antenna device according to the first embodiment of the present invention.

Figure 2 is a schematic diagram of the first connection channel of the rectangular tri-band antenna device according to the first embodiment of the present invention.

Figure 3 is a schematic diagram of the first end block of the rectangular tri-band antenna device according to the first embodiment of the present invention.

Figure 4 is a schematic diagram of the second connection channel of the rectangular tri-band antenna device according to the first embodiment of the present invention.

Figure 5 is a schematic diagram of the current path of the rectangular tri-band antenna device according to the first embodiment of the present invention.

Fig. 6 is a diagram showing the simulation result of the rectangular tri-band antenna device of the first embodiment of the present invention.

Fig. 7 is a structural diagram of a rectangular tri-band antenna device according to the second embodiment of the present invention.

Fig. 8 is a structural diagram of a rectangular tri-band antenna device according to a third embodiment of the present invention.

1: Rectangular tri-band antenna device

11: The first radiating conductor pattern

111: The first starting block

112: The first link channel

113: First End Block

12: The second radiating conductor pattern

121: The second starting block

122: Second Link Channel

123: second end block

124: Third Link Channel

125: Third End Block

I1: The first impedance matching adjustment zone

I2: The second impedance matching adjustment zone

GP: Signal ground point

FP: signal feed point

S: Notch

D1: length direction

D2: width direction

Claims (10)

A rectangular tri-band antenna device, which contains: A first radiating conductor pattern is sequentially arranged in a length direction with: A first starting block; A first connection channel; A first end block; Wherein, the first connecting channel extends from a side in a width direction perpendicular to the length direction toward the first terminal block and is connected to the first terminal block; A second radiating conductor pattern is located between the first start block and the first end block in the length direction, and is sequentially arranged with: A second starting block, adjacent to one end of the first starting block, a signal feeding point is provided; A second connecting passage, adjacent to the first connecting passage, in the shape of a continuous hairpin bend in the length direction, extending from the second starting block to a second ending block; Wherein, the length of the second start block and the second end block in the length direction, plus an actual cumulative length of the second connecting channel in the length direction and the width direction, is between the corresponding one Between 0.3 and 0.7 times the wavelength of high frequency and high frequency; and The second radiating conductor patterns are sequentially arranged in the width direction: The second connecting channel; and A third connecting channel extends from the second starting block to a third ending block in the length direction, and the second starting block, the third connecting channel, and the third ending block The total length in the length direction is between 0.3 and 0.7 times the wavelength of the corresponding high frequency band and low frequency; Wherein, the first radiating conductor pattern further includes: A signal grounding point is arranged at one end of the first starting block adjacent to the second starting block, and the first radiating conductor pattern extends from the signal grounding point to the first connecting channel in the length direction The total length of one end of the first terminal block farthest away from the second radiating conductor pattern is between 0.3 and 0.7 times the wavelength of a corresponding low-band frequency. For example, the rectangular three-band antenna device described in item 1 of the scope of patent application, wherein the first connecting channel is sequentially arranged in the length direction with a first part, a second part, a third part, and a first part. Four parts, the width of the fourth part in the width direction is greater than the width of the first part, the second part and the third part in the width direction, the width of the first part in the width direction The width is greater than the width of the second part and the third part in the width direction, and the width of the third part in the width direction is greater than the width of the second part in the width direction. The rectangular three-band antenna device described in item 2 of the scope of patent application, wherein the length of the second part in the length direction is greater than that of the first part, the third part and the fourth part in the length direction The length of the fourth part in the length direction is greater than the length of the first part and the third part in the length direction, and the length of the first part in the length direction is greater than the length of the third part The length in the length direction. The rectangular tri-band antenna device described in item 2 of the scope of patent application further includes a first impedance matching adjustment area, and the first impedance matching adjustment area is sequentially arranged in a length direction with a first impedance matching portion and a The second impedance matching part, the first impedance matching part is arranged on a side of the second part, and the second impedance matching part is arranged on a side of the third part. For the rectangular three-band antenna device described in item 1 of the scope of patent application, the first end block is sequentially arranged with a first part and a second part in the width direction, and the second part is in the The length of the longitudinal direction is greater than the length of the first portion in the longitudinal direction, and the width of the first portion in the width direction is greater than the width of the second portion in the width direction. The rectangular three-band antenna device described in the first item of the scope of patent application, wherein the second connecting channel is sequentially provided with a first bending portion, a second bending portion, and a third bending portion in the length direction , A fourth bending part and a fifth bending part to form a continuous hairpin bending shape. For the rectangular three-band antenna device described in item 6 of the scope of patent application, wherein the first bending portion, the third bending portion, and the fifth bending portion face and are adjacent to the third connecting channel, and the The second bending portion and the fourth bending portion face and are adjacent to the second connecting channel. The rectangular three-band antenna device described in the first item of the scope of patent application, wherein the length of the third connecting channel in the longitudinal direction is greater than the length of the third terminal block in the longitudinal direction, and the third connecting channel is in the width The width of the direction is greater than the width of the third terminal block in the width direction. The rectangular tri-band antenna device described in the first item of the scope of the patent application further includes a second impedance matching adjustment area, the second impedance matching adjustment area is connected to the second starting block and facing the second connecting channel In the direction of extension. According to the rectangular three-band antenna device described in claim 1, wherein the first starting block, the first connecting channel, and the first ending block form a notch, and the second radiating conductor pattern is disposed on the In the notch.

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