CN210006930U - Electronic device - Google Patents
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- CN210006930U CN210006930U CN201822277274.1U CN201822277274U CN210006930U CN 210006930 U CN210006930 U CN 210006930U CN 201822277274 U CN201822277274 U CN 201822277274U CN 210006930 U CN210006930 U CN 210006930U
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Abstract
electronic device is provided, the electronic device includes a body and an antenna assembly, the body includes a part, a second part foldable relative to the 0 part and a third part connected to the 1 part and the second part, the antenna assembly includes a 3 th antenna radiation part arranged on the 2 th part and a 4 th extension radiation part arranged on the third part, and an 7 th logic circuit connected with the 5 th antenna radiation part and the 6 th extension radiation part, when the th part is folded relative to the second part, the th antenna radiation part and the th extension radiation part are conducted through the logic circuit, so that the th antenna radiation part and the th extension radiation part cooperate to generate resonance, and the th extension radiation part is less interfered by the th part or the second part, thereby providing extra radiation area and being beneficial to improving the overall antenna performance.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to kinds of electronic equipment.
Background
A typical folding handset includes two foldable parts, and in the folded state of the two parts, the radiation signal of the radiator of parts is easily interfered by another parts, resulting in reduced antenna performance.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides electronic equipment, which comprises
A body comprising a th portion, a second portion foldable relative to the th portion, and a third portion connected to the th portion and the second portion;
an antenna assembly comprising a th antenna radiating portion disposed at the th portion, a th extended radiating portion disposed at the third portion, and a th logic circuit connecting the th antenna radiating portion and the th extended radiating portion, wherein the th portion is folded with respect to the second portion, and the th antenna radiating portion is in electrical communication with the th extended radiating portion via the th logic circuit.
The embodiment of the application provides electronic devices, through the antenna radiation part set up in 0 part, and the 1 extension radiation part set up in the third part, lie in the middle pivot portion of electronic device, resonance space is big, is difficult to receive 2 part or the folded state of second part influence of 382 part or second part, work as the part is folded relatively the second part, pass through the logic circuit switch on the antenna radiation part with the extension radiation part, make the antenna radiation part with the extension radiation part produces resonance in coordination, the interference that the part or the second part received the extension radiation part is little, can provide extra radiation area, be favorable to improving whole antenna performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram ii of an electronic device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram three of an electronic device provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram five of an electronic device provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram six of an electronic device provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram seventh of an electronic device provided in the embodiment of the present application;
fig. 8 is a schematic structural diagram eight of an electronic device provided in the embodiment of the present application.
Detailed Description
Referring to fig. 1, an embodiment of the present application provides electronic device 100, where the electronic device 100 includes a body 10 and an antenna assembly 20, the body 10 includes a th portion 11, a second portion 12 foldable with respect to the 0 th portion 11, and a third portion 13 connected to the 1 th portion 11 and the second portion 12, the antenna assembly 20 includes a 3 rd antenna radiation portion 21 disposed on the 2 th portion 11, a th extension radiation portion 22 disposed on the third portion 13, and a th logic circuit 23 connected to the th antenna radiation portion 21 and the th extension radiation portion 22, where the th portion 11 is folded with respect to the second portion 12, and the th antenna radiation portion 21 is in communication with the th extension radiation portion 22 through the th logic circuit 23.
Referring to fig. 2, the electronic device 100 further includes a flexible display 30, the flexible display 30 includes an th display portion 31, a second display portion 32 disposed opposite to the th display portion 31, and a flexible display portion 33 connected between the th display portion 31 and the second display portion 32, the th display portion 31 is fixedly connected to the th portion 11, the second display portion 32 is fixedly connected to the second portion 12, when the th portion 11 is folded opposite to the second portion 12, the th portion 11 and the second portion 12 can drive the flexible display 30 to bend and deform, so that the electronic device 100 can be folded in half for storage, the th portion 11 is flattened with the second portion 12, the th portion 11 and the second portion 12 drive the flexible display 30 to be flattened, so that the electronic device 100 has a larger display area, and thus the electronic device 100 can be adapted to different use states.
When the th portion 11 is folded with respect to the second portion 12, the st antenna radiation portion 21 and the th extension radiation portion 22 are conducted through the th logic circuit 23, so that the th antenna radiation portion 21 and the th extension radiation portion 22 cooperatively resonate, and the th extension radiation portion 22 is less interfered by the th portion 11 or the second portion 12, an additional radiation area can be provided, which is favorable for improving the overall antenna performance.
Referring to fig. 1 and 3, in this embodiment, the th portion 11 is a housing for carrying the th display portion 31, the th portion 11 and the th display portion 31 are both rectangular, a th receiving cavity 14 is formed between the th portion 11 and the th display portion 31, the th receiving cavity 14 can be used for arranging functional devices such as circuit boards, cameras and speakers, the 356 th portion 11 has a th connecting edge 111 adjacent to the third portion 13 and a th free edge 112 opposite to the th connecting edge 111, and two 1 th side edges 113 connecting the th connecting edge 111 and the 0 th free edge 112, the th connecting edge 111 connecting the third portion 13, the th free edge 112 is located between the th connecting edge 111 and the th receiving edge of the th portion 11, the th receiving cavity 14 is located between the 599 th connecting edges 113 and the 599 th connecting edge 112.
The second portion 12 is a housing carrying the second display portion 32, the second portion 12 and the second display portion 32 are rectangular, a second receiving cavity 15 is formed between the second portion 12 and the second display portion 32, the second receiving cavity 15 can be used for arranging functional devices such as circuit boards, cameras and speakers, the second portion 12 has a second connecting edge 121 adjacent to the third portion 13 and a second free edge 122 opposite to the second connecting edge 121, and two second side edges 123 connecting the second connecting edge 121 and the second free edge 122, the second connecting edge 121 connects the third portion 13, the second connecting edge 121 is parallel to the third connecting edge 111, the second free edge 122 is located on the side of the second portion 12 away from the third portion 13 , and the second receiving cavity 15 is located between the second connecting edge 121, the second free edge 122 and the second side edges 123.
The third section 13 is a housing connected between the th section 11 and the second section 12, the third section 13 is disposed opposite to the flexible display unit 33, the third section 13 has two end portions 131 disposed opposite to each other, the length direction of the third section 13 is the opposite direction of the two end portions 131, the connecting edge 111 extends in a direction parallel to the length direction of the third section 13, and the second connecting edge 121 extends in a direction parallel to the length direction of the third section 13, the third section 13 can provide a larger layout area for the th expansion radiating section 22, the rd section 11 is folded with respect to the second section 12, the third section 13 protrudes with respect to the 865 8292 th section 11 and the second section 12, so that the th expansion radiating section 22 located in the third section 13 is far from the th section 11 and the second section 12, and interference of the second section 12 is avoided by the th antenna radiating section 21 being connected with the second expansion section 22 through the 586323, so that interference of the antenna radiating section 21 with the antenna expansion section 22 is prevented from the antenna structure and the flexible display screen structure from being turned off the antenna section 23.
Referring to fig. 1, in this embodiment, the th antenna radiating portion 21 is disposed at the th portion 11 adjacent to the 0 th side edge 113, the electronic device 100 further includes a circuit board 40 disposed at the 1 th portion 11 and a feeding source 50 disposed on the circuit board 40, the circuit board 40 and the 2 th antenna radiating portion 21 are both fixed in the 3 th accommodating cavity 14, the feeding source 50 can be electrically connected to the 4 th antenna radiating portion 21 through a feeding spring or a conductive cable, the 5 logic circuit 23 is connected between the 6 th antenna radiating portion 21 and the th extended radiating portion 22, the th logic circuit 23 includes at least switching devices 231, the switching of the th logic circuit 23 can be controlled by the switching device 231, and the th antenna radiating portion 21 and the th extended radiating portion 22 are connected or not connected.
Referring to fig. 3, in a state where the th part 11 is folded with respect to the second part 12, the th logic circuit 23 is turned on to make the th antenna radiation part 21 turn on the st extension radiation part 22, so as to form a new antenna structure, which is beneficial to extending the antenna bandwidth and improving the antenna performance, and the th antenna radiation part 21 is located on a plane substantially perpendicular to the plane of the th extension radiation part 22, so that the antenna structure formed by the th antenna radiation part 21 and the th extension radiation part 22 can simultaneously receive and transmit horizontal polarized waves and vertical polarized waves, thereby ensuring that the antenna structure can continuously and stably receive and transmit wireless communication signals.
Referring to fig. 4, , the antenna radiating portion 21 has a end 211 adjacent to the third portion 13, a second end 212 opposite to the end 211, and a connection point 213 located between the end 211 and the second end 212, the end 211 is used for feeding an excitation signal, the logic circuit 23 is connected to the connection point 213, and the expansion radiating portion 22 is grounded.
In this embodiment, said antenna radiating portion 21 is located between said connecting edge 111 and said free edge 112, said th antenna radiating portion 21 extends in a direction perpendicular to said th 2 connecting edge 111, i.e. the relative direction of said rd end 211 and said second end 212 is perpendicular to said th connecting edge 111, said th antenna radiating portion 21 is provided with a th feeding point 214 at said th 6 end 211, said th feeding point 214 is used for feeding an excitation signal, said th feeding point 214 is electrically connected to said feed power source 50, so that said feed power source 50 feeds said th antenna radiating portion 21 through said th feeding point 214, when said th logic circuit 23 switches on said th 2 connecting point 213 and said th 3 expansion radiating portion 22, the portion 211 to said th connecting point 213 and said th expansion radiating portion 213, said th expansion radiating portion 213 and said th expansion radiating portion 22 are connected through said th logic circuit 23, so that said first expansion radiating portion and said th expansion portion can function as a high efficiency of said first expansion radiating portion and said antenna radiating portion can reduce the energy radiated by said first antenna radiating portion and said second expansion radiating portion of said and said antenna radiating structure can function as said first antenna radiating portion is used for reducing said first radiating energy radiated by said first antenna radiating portion and said first expansion portion and said first expansion radiating portion and said first antenna radiating portion is used for said first antenna radiating device and said .
The th antenna radiating part 21 extends in a direction perpendicular to the th connecting edge 111, that is, the 0 th antenna radiating part 21 is arranged in the width direction of the electronic device 100, that is, in a direction perpendicular to the 1 th connecting edge 111, the third portion 13 can provide a large arrangement space for the th extended radiating part 22 in the length direction, the th extended radiating part 22 extends in a direction parallel to the th connecting edge 111, that is, the th extended radiating part 22 extends in a direction parallel to the length direction of the third portion 13, so that the space required for the th extended radiating part 22 to be arranged in the width direction of the third portion 13 can be reduced without changing the size of the th extended radiating part 22, and the th antenna radiating part 21 and the th extended radiating part 22 form an L-type antenna radiating structure, which can transmit and receive both horizontally polarized waves and vertically polarized waves.
Referring to fig. 5, , the antenna radiating portion 21 has a plurality of connecting points 213 located between the th end 211 and the second end 212, and the th logic circuit 23 is connected to any of the plurality of connecting points 213.
In this embodiment, a plurality of the first connection points 213 are arranged side by side along the extending direction of the antenna radiating section 21, the second 1 switching device 231 is a single-pole multi-throw switch, and the second 2 connection point 213 can be connected to any of the plurality of the second 2 connection points 213, so that the 4 antenna radiating section 21, the logic circuit 23 and the extension radiating section 22 form an antenna signal loop, so that the physical size of the antenna signal loop connected to the fifth antenna radiating section 21 can be adjusted, that is, the physical size of the first end 211 to the corresponding first connection point 213 connected to the switching device 231 is adjusted, so that the antenna structure composed of the first antenna radiating section 21 and the 72 extension radiating section 22 can transmit and receive wireless communication signals in different antenna frequency bands, the first extension radiating section 22 is provided with a plurality of connection points 221 and a plurality of connection points 221, the connection points 221 and the plurality of the connection points 221 are connected to the second extension switch device 231, so that the plurality of the connection points 231 can be adjusted in series connection direction of the second extension switch 72 extension , so that the plurality of the connection points extension devices 231 can be adjusted, so that the connection points of the connection points extension devices 231 can be connected to the connection point of the second extension devices 231 can be connected to the second extension devices 231, so that the connection point extension devices can be connected to the connection point extension devices 72 extension devices 231 can be connected to the connection point extension devices 72 extension devices 231.
When the electronic device 100 is in the folded state and the th antenna radiation part 21 is strongly shielded or interfered, the physical size of the part of the th antenna radiation part 21 accessing the antenna signal loop may be selected to be small, and the physical size of the part of the th extended radiation part 22 accessing the antenna signal loop may be selected to be large, so that the two are combined to match the conductive length required by the antenna structure, and when the electronic device 100 is in the unfolded state and the shielding effect or interference of the second extended radiation part 25 is strong, the physical size of the part of the th antenna radiation part 21 accessing the antenna signal loop may be selected to be large, and the physical size of the part of the th extended radiation part 22 accessing the antenna signal loop is selected to be small, so that the two are combined to match the conductive length required by the antenna structure.
Referring to fig. 6, further , the antenna assembly 20 further includes a second antenna radiation portion 24 disposed on the second portion 12, the antenna assembly 20 further includes a second logic circuit 26 and a second extended radiation portion 25 disposed on the third portion 13 and grounded, and the second logic circuit 26 connects the second antenna radiation portion 24 and the second extended radiation portion 25.
In this embodiment, the second antenna radiation portion 24 is disposed on the second portion 12 adjacent to the second side edge 123, the second antenna radiation portion 24 has a third terminal 241 adjacent to the third portion 13 and a fourth terminal 242 disposed opposite to the third terminal 241, the second antenna radiation portion 24 extends along a direction perpendicular to the second connection edge 121, that is, the opposite direction of the third terminal 241 and the fourth terminal 242 is perpendicular to the second connection edge 121, the second antenna radiation portion 24 has a second feeding point 244 at the fourth terminal 242, the second feeding point 244 is used for feeding an excitation signal, the electronic device 100 further includes a circuit board 40 disposed on the second portion 12 and a feeding source 50 disposed on the circuit board 40, the feeding source 50 may be electrically connected to the second feeding point 243 of the second antenna radiation portion 24 via a feeding spring or a conductive cable, the second logic circuit connection point 26 may be connected to the second logic circuit connection point 243 of the second antenna radiation portion 24, the second logic circuit connection point 26 may be connected to the second logic circuit connection point 261, and the second antenna radiation portion 26 may be connected to the second logic circuit connection point 261, and the second logic circuit connection point 261 may be connected to the second antenna radiation portion 26, and the second logic connection point 261, and the second switch 26 may be connected to the second logic connection point 261, and the second switch 26.
Referring to fig. 7, in a state where the second section 11 is folded with respect to the second section 12, the antenna radiation section 21 and the second antenna radiation section 24 are at least partially overlapped, the 1 antenna radiation section 21 and the 2 extended radiation section 22 are conducted through the 0 logic circuit 23, so that the portion from the fourth end 211 to the second connection point 213 of , the 5 logic circuit 23 and the extended radiation section 22 form an antenna signal loop, the second logic circuit 26 conducts the second antenna radiation section 24 and the second extended radiation section 25, so that the portion from the fourth end 242 to the second connection point 243, the second logic circuit 26 and the second extended radiation section 25 form an antenna signal loop, the folded state of the section 11 with respect to the second section 12, the portion from the second end 211 to the connection point 213 of the second connection point 213 to the second connection point 213, and the second extended radiation section 5966 are mutually separated from each other, so that the antenna radiation structure from the second antenna radiation section 21 and the extended radiation section 24 are mutually interfered with the antenna structure 7378, so that the antenna radiation section 242 and the second extended radiation section 23 are mutually separated from each other, so that the antenna radiation section 11 and the antenna radiation structure are located near the antenna structure 638 and the antenna structure may be understood that the antenna radiation structure may be mutually interfered with the second extended radiation section 6321 and the antenna structure.
Referring to fig. 7, in this embodiment, in a state where the second section 11 of the third antenna is folded with respect to the second section 12, the fourth antenna radiation section 21 and the second antenna radiation section 24 are completely overlapped, so that the second antenna radiation section 21 and the second antenna radiation section 24 form a symmetrical antenna radiation structure, thereby preventing the second antenna radiation section 21 and the second antenna radiation section 24 from being staggered to occupy more space, and enabling the electronic device 100 to transmit and receive wireless communication signals on both front and back sides, the fourth 2 section 11 is folded with respect to the second section 12, a portion from the end 211 to the connection point 213 overlaps a portion from the third end 241 to the second connection point 243, a portion from the second end 212 to the connection point 243 overlaps a portion from the fourth end 242 to the second connection point, and a portion from the third end 241 to the second connection point 243 overlaps a portion from the fourth end 242 to the second connection point 213 is connected through the third logic circuit 23, the third end 383 connection 213 and the second extension section 42 are connected through the second connection point 31, and the second antenna radiation section 21 is prevented from interfering with the second antenna radiation section 21 and the second antenna radiation section 21 is connected through the second extension section 28, the second antenna radiation section 28, and the second antenna radiation section 21 is prevented from interfering with the second antenna radiation section 21 and the second antenna radiation section 21 when the second antenna radiation section 21 is folded with the second connection point 21.
Referring to fig. 8, in a stage , the expanded radiating portion 22 and the second expanded radiating portion 25 are respectively disposed adjacent to two end portions 131 of the third portion 13, in this embodiment, the third portion 13 includes a 0 metal portion 132, a second metal portion 133 and a third metal portion 134 which are sequentially arranged side by side, the 1 metal portion 132 and the third metal portion 134 are respectively disposed adjacent to two end portions 131 of the third portion 13, the second metal portion 133 is disposed between the 2 metal portion 132 and the third metal portion 134, the 3 metal portion 132 is spaced apart from the second metal portion 133, so that a gap 135 is formed between the second ground metal portion 132 and the second metal portion 133, a non-signal shielding material is filled in the 6 gap 135, the second metal portion 133 is spaced apart from the third metal portion 133, a second gap 136 is formed between the second metal portion 133 and the third metal portion 134, a non-signal shielding material is filled in the 856 gap 135, the second metal portion 133 is disposed between the second metal portion 133 and the third metal portion 133, the expanded by the radiation shielding material, the radiation spreading portion 9626, the radiation shielding material may be disposed between the second expanded portion 9626, the radiation spreading portion 9626, the radiation shielding material is disposed between the second expanded metal portion 9626, and the radiation spreading portion 9626 may be disposed between the radiation spreading portion 11, and the radiation spreading portion 3625, or between the radiation spreading portion 3625, and the radiation spreading portion 3625 may be disposed between the radiating portion 3625, and the radiating portion 3625.
The embodiment of the application provides electronic devices, through the antenna radiation part set up in 0 part, and the 1 extension radiation part set up in the third part, lie in the middle pivot portion of electronic device, resonance space is big, is difficult to receive 2 part or the folded state of second part influence of 382 part or second part, work as the part is folded relatively the second part, pass through the logic circuit switch on the antenna radiation part with the extension radiation part, make the antenna radiation part with the extension radiation part produces resonance in coordination, the interference that the part or the second part received the extension radiation part is little, can provide extra radiation area, be favorable to improving whole antenna performance.
In summary, although the present application has been described with reference to the preferred embodiments, the present application is not limited to the preferred embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the protection scope of the present application is determined by the scope of the appended claims.
Claims (11)
- An electronic device of the kind 1, , comprisingA body comprising a th portion, a second portion foldable relative to the th portion, and a third portion connected to the th portion and the second portion;an antenna assembly comprising a th antenna radiating portion disposed at the th portion, a th extended radiating portion disposed at the third portion, and a th logic circuit connecting the th antenna radiating portion and the th extended radiating portion, wherein the th portion is folded with respect to the second portion, and the th antenna radiating portion is in electrical communication with the th extended radiating portion via the th logic circuit.
- 2. The electronic device as claimed in claim 1, wherein said th antenna radiating portion has a th end adjacent to said third portion and a second end disposed opposite to said th end, and a th connection point located between said th end and said second end, said th end is used for feeding excitation signals, said th logic circuit is connected to said th connection point, and said th extended radiating portion is grounded.
- 3. The electronic device as claimed in claim 2, wherein said th antenna radiating portion is provided with a plurality of said th connection points located between said th and second ends, and said th logic circuit is connected to any of a plurality of said th connection points.
- 4. The electronic device according to claim 3, wherein the th expanded radiating part is provided with a plurality of connection points side by side, and the th logic circuit is connected to any of the plurality of connection points.
- 5. The electronic device of claim 1, wherein the antenna assembly further comprises a second antenna radiating portion disposed in the second portion, the antenna assembly further comprising a second logic circuit and a second extended radiating portion disposed in the third portion and grounded, the second logic circuit connecting the second antenna radiating portion and the second extended radiating portion.
- 6. The electronic device according to claim 5, wherein the second antenna radiation portion is provided with a third terminal adjacent to the third portion and a fourth terminal disposed opposite to the third terminal, and a second connection point located between the third terminal and the fourth terminal, the fourth terminal is used for feeding an excitation signal, and the second logic circuit is connected to the second connection point.
- 7. The electronic device according to claim 5, wherein the third portion is provided with two end portions that are oppositely disposed, and the th extended radiating portion and the second extended radiating portion are disposed adjacent to the two end portions of the third portion, respectively.
- 8. The electronic device of claim 5, wherein the th portion is folded relative to the second portion, the th antenna radiating portion completely overlaps the second antenna radiating portion.
- 9. The electronic device of any of claims 1-8 , wherein the portion has a connection edge connected to the third portion, the antenna radiating portion extends in a direction perpendicular to the connection edge, and the extended radiating portion extends in a direction parallel to the connection edge.
- 10. The electronic device of any of claims 1-8 , further comprising a circuit board fixedly attached to the th portion and a power supply disposed on the circuit board, the power supply electrically coupled to the th antenna radiating portion and electrically coupled to the th extension radiating portion via the th logic circuit.
- 11. The electronic device of any of claims 1-8, further comprising a flexible display screen comprising a th display portion and a second display portion disposed opposite the th display portion, and a flexible display portion coupled between the th display portion and the second display portion, wherein the th display portion is fixedly coupled to the th portion, and the second display portion is fixedly coupled to the second portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277274.1U CN210006930U (en) | 2018-12-29 | 2018-12-29 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277274.1U CN210006930U (en) | 2018-12-29 | 2018-12-29 | Electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210006930U true CN210006930U (en) | 2020-01-31 |
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ID=69299621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277274.1U Active CN210006930U (en) | 2018-12-29 | 2018-12-29 | Electronic device |
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| Country | Link |
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| CN (1) | CN210006930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190143A1 (en) * | 2020-03-23 | 2021-09-30 | RealMe重庆移动通信有限公司 | Wearable electronic device |
| WO2024063621A1 (en) * | 2022-09-23 | 2024-03-28 | 삼성전자주식회사 | Electronic device comprising connection structure used as signal transmission path |
-
2018
- 2018-12-29 CN CN201822277274.1U patent/CN210006930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190143A1 (en) * | 2020-03-23 | 2021-09-30 | RealMe重庆移动通信有限公司 | Wearable electronic device |
| WO2024063621A1 (en) * | 2022-09-23 | 2024-03-28 | 삼성전자주식회사 | Electronic device comprising connection structure used as signal transmission path |
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