CN116613510A - Terminal - Google Patents

Terminal Download PDF

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Publication number
CN116613510A
CN116613510A CN202210122335.5A CN202210122335A CN116613510A CN 116613510 A CN116613510 A CN 116613510A CN 202210122335 A CN202210122335 A CN 202210122335A CN 116613510 A CN116613510 A CN 116613510A
Authority
CN
China
Prior art keywords
antenna
frame antenna
frame
terminal
feed point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210122335.5A
Other languages
Chinese (zh)
Inventor
张天成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202210122335.5A priority Critical patent/CN116613510A/en
Publication of CN116613510A publication Critical patent/CN116613510A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/48Earthing means; Earth screens; Counterpoises
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Support Of Aerials (AREA)

Abstract

The present disclosure provides a terminal, the terminal comprising: the middle frame comprises a first frame antenna, a second frame antenna and a connecting arm, wherein the connecting arm protrudes from the second frame antenna to the inside of the terminal, and a break joint is arranged between the first frame antenna and the second frame antenna; the circuit board is arranged on the middle frame and comprises a grounding part and a radio frequency circuit part; the first feed point is electrically connected with the radio frequency circuit part and the first frame antenna respectively and is used for transmitting wireless signals with a first frequency band; the parallel structure is connected with the connecting arm and is positioned at one side of the connecting arm adjacent to the first frame antenna; the first frame antenna is coupled with the second frame antenna to form a current path connected to the ground part through the parallel structure when radiating wireless signals. The technical scheme of the present disclosure can improve antenna performance.

Description

Terminal
Technical Field
The disclosure relates to the field of communication technologies, and in particular, to a terminal.
Background
With the development of the terminal, the antenna form is changed from an external antenna to an internal antenna or a frame antenna. The rapid development of communication technology causes the continuous increase of network systems, and also causes the frequency bands that the antenna of the terminal needs to support to be increased. In addition, the user needs are improved, the functions of the terminal become more and more complex, the internal space of the terminal is more tense, and the antenna performance is influenced.
Disclosure of Invention
The present disclosure provides a terminal.
According to an embodiment of the present disclosure, there is provided a terminal including:
the middle frame comprises a first frame antenna, a second frame antenna and a connecting arm, wherein the connecting arm protrudes from the second frame antenna to the inside of the terminal, and a break joint is arranged between the first frame antenna and the second frame antenna;
the circuit board is arranged on the middle frame and comprises a grounding part and a radio frequency circuit part;
the first feed point is electrically connected with the radio frequency circuit part and the first frame antenna respectively and is used for transmitting wireless signals with a first frequency band;
the parallel structure is connected with the connecting arm and is positioned at one side of the connecting arm adjacent to the first frame antenna;
the first frame antenna is coupled with the second frame antenna to form a current path connected to the ground part through the parallel structure when radiating wireless signals.
In some embodiments, the terminal comprises:
the second feed point is electrically connected with the radio frequency circuit part and the connecting arm respectively and is used for transmitting wireless signals with a second frequency band;
the parallel structure is positioned between the second feed point and the first frame antenna.
In some embodiments, the terminal further comprises:
and the third antenna is arranged on the inner side of the second frame antenna and is coupled with the second frame antenna.
In some embodiments, the radiator of the third antenna is parallel to the second bezel antenna.
In some embodiments, the third antenna comprises an LDS antenna or an FPC antenna.
In some embodiments, the circuit board has a first mounting hole; the connecting arm has a second mounting hole, the first and second mounting holes being aligned;
the terminal further comprises:
the fastener is respectively penetrated in the first mounting hole and the second mounting hole to connect the circuit board and the connecting arm.
In some embodiments, the parallel structure includes a capacitor.
In some embodiments, the connecting arm is adjacent to the break.
In some embodiments, the terminal further comprises:
the third feed point is electrically connected with the radio frequency circuit part and the first frame antenna respectively and is separated from the first feed point, and the first feed point is positioned between the third feed point and the fracture;
the third feed point is used for transmitting wireless signals with a third frequency band and/or a fourth frequency band.
In some embodiments, the terminal further comprises:
the first feed spring piece is respectively and electrically connected with the radio frequency circuit part and the first frame antenna, and the first feed point is formed at the joint of the first feed spring piece and the first frame antenna;
the second feed spring piece is respectively and electrically connected with the radio frequency circuit part and the first frame antenna, and the third feed point is formed at the joint of the second feed spring piece and the first frame antenna.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
as can be seen from the foregoing embodiments, in the embodiments of the present disclosure, the first frame antenna may be used as a radiating arm for receiving or transmitting a wireless signal, and be used as a part of an antenna for receiving and transmitting a wireless signal in a terminal. When the radio frequency circuit part of the circuit board is fed through the first feed point, the current passing through the first frame antenna generates an electromagnetic field and transmits a wireless signal of a first frequency band, and part of the current on the first frame antenna is also coupled to the second frame antenna and is connected to the grounding part through the connecting arm of the second frame antenna and the parallel structure adjacent to the first frame antenna, which is equivalent to the return of the passage to the ground. The current path for returning to the ground of the channel reduces the coupling loss of the antenna, is more beneficial to receiving and transmitting wireless signals, weakens the LOOP (LOOP) effect of the antenna, weakens and moves forward the efficiency pits of the antenna, and improves the average value performance of the wireless signals in the first frequency band.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is one of partial structural schematic diagrams of a terminal shown according to an exemplary embodiment;
FIG. 2 is a second schematic diagram of a partial structure of a terminal according to an exemplary embodiment;
fig. 3 is a partial structural diagram of a middle frame of a terminal according to an exemplary embodiment;
fig. 4 is a partial structural schematic diagram of a circuit board of a terminal shown according to an exemplary embodiment.
Fig. 5 is a block diagram showing a composition structure of a terminal according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus consistent with some aspects of the disclosure as detailed in the accompanying claims.
Fig. 1 and 2 schematically show partial structural diagrams of a terminal, respectively. As shown in fig. 1 and fig. 2, a terminal provided in an embodiment of the present disclosure includes:
the middle frame 100 comprises a first frame antenna 110, a second frame antenna 120 and a connecting arm 130, wherein the connecting arm 130 protrudes from the second frame antenna 120 to the inside of the terminal, and a break gap 140 is formed between the first frame antenna 110 and the second frame antenna 120;
a circuit board 200 disposed on the middle frame 100, the circuit board 200 including a ground portion 210 and a radio frequency circuit portion 220;
a first feed point 151 electrically connected to the radio frequency circuit portion 220 and the first frame antenna 110, respectively, for transmitting a wireless signal having a first frequency band;
the parallel structure 180 is connected with the connecting arm 130 and is positioned at one side of the connecting arm 130 adjacent to the first frame antenna 110;
the first frame antenna 110 is coupled with the second frame antenna 120 to form a current path through the shunt structure 180 to the ground portion 210 when radiating a wireless signal.
In the embodiment of the disclosure, the first frame antenna 110, the second frame antenna 120 and the connection arm 130 all have conductivity. The first frame antenna 110 may be used as a radiating arm for receiving or transmitting wireless signals as part of an antenna for transmitting and receiving wireless signals within a terminal.
Generally, the first bezel antenna 110 and the second bezel antenna 120 are located on the same side of the center frame 100.
In some embodiments, the first bezel antenna 110 and the second bezel antenna 120 are both located on top of the terminal. As shown in fig. 3, the first and second frame antennas 110 and 120 are both located in the upper left corner of the terminal.
In practice, the break 140 shown in fig. 1 to 3 may be obtained by cutting the closed annular metal rim of the center 100. After the break 140 is formed, the break 140 may be closed with an insulating material to reduce foreign matters such as dust from entering the inside of the terminal through the break 140.
The second bezel antenna 120 and the connection arm 130 may be a physically indiscernible integral structure.
The circuit board 200 may be a motherboard within a terminal, including a processor or memory, in addition to the rf circuit portion 220 and the ground portion 210.
The docking structure 180 has a decoupling function for electrically connecting the connection arm 130 to the ground portion 210.
Without limitation, the shunt structure 180 includes a capacitor.
As shown by the white arrow (1) in connection with fig. 2, as well as fig. 4. When the radio frequency circuit portion 220 of the circuit board 200 is fed through the first feeding point 151, the current passing through the first frame antenna 110 generates an electromagnetic field and transmits a wireless signal of the first frequency band, and a part of the current on the first frame antenna 110 is coupled to the second frame antenna 120 and is connected to the grounding portion 210 through the connecting arm 130 of the second frame antenna 120 and the parallel structure 180 adjacent to the first frame antenna 110, which is equivalent to a via-to-ground.
If the parallel structure 180 is disposed on the side of the connection arm 130 away from the first frame antenna 110, as shown in fig. 4, the current path of the first frame antenna to ground is shown by the black arrow part (2). In the embodiment of the disclosure, the parallel structure 180 is located on the side of the connecting arm 130 adjacent to the first frame antenna 110, and the path of the ground return current of the first frame antenna is shown by the white arrow part (1). Compared with the current path shown in (2), the current path shown in (1) is shorter, the current path with the ground return path reduces the coupling loss of the first frame antenna, is more beneficial to receiving and transmitting wireless signals, and reduces the LOOP (LOOP) effect of the first frame antenna. The efficiency pits of the first frame antenna are weakened and move forwards, and the average value performance of the wireless signals of the first frequency band is improved.
Without limitation, the docking structure 180 is located at a position of the connection arm 130 closest to the ground portion 210 to further reduce coupling loss.
Without limitation, the first frequency band may be a WIFI5G/6E frequency band, where the first frame antenna is a WIFI5G/6E antenna.
According to some alternative embodiments, the terminal comprises:
a second feed point 131 electrically connected to the radio frequency circuit portion 220 and the connection arm 130, respectively, for transmitting a wireless signal having a second frequency band; the parallel structure 180 is located between the second feed point 131 and the first frame antenna 110.
The second feed point 131 is set, so that the second frame antenna 120 can also be used as a radiation arm, so that the second frame antenna radiates wireless signals with different frequency bands, and the number of antennas in the terminal is increased.
The second frequency band may be, without limitation, the GPS (Global Positioning System ) L5 frequency band. At this time, the first frame antenna is multiplexed as a GPS L5 antenna.
According to some optional embodiments, the terminal further comprises:
and a third antenna disposed inside the second bezel antenna 120 and coupled to the second bezel antenna 120.
The third antenna improves the radiation pattern of the first frame antenna 110 by coupling through the second frame antenna 120, compensating for the radiation capability of the first frame antenna 110.
In some embodiments, as shown in fig. 1, the third antenna includes:
an insulating bracket, which comprises a first part and a second part, wherein the first part is connected with the circuit board 200, and the second part is separated from the circuit board 200;
and a radiator 190 located at the second portion and coupled to the second bezel antenna 120.
The radiator 190 is suspended above the circuit board 200 by an insulating support.
In practical applications, the terminal further includes a battery cover, which is mounted on the middle frame 100 and covers the circuit board 200, the first feeding point 151, the parallel structure 180, the second feeding point 131, the insulating support, the radiator 190, and the like. The first frame antenna radiates wireless signals toward the battery cover. After the third antenna is added, the coupling effect of the third antenna and the second frame antenna 120 is utilized to compensate the radiation capability of the first frame antenna towards one side of the battery cover, so that the directional diagram of the first frame antenna becomes smoother, the efficiency of the first frame antenna end channel is improved, and the efficiency pit of the first frame antenna end channel is weakened.
In some embodiments, the third antenna comprises an LDS (laser formed, laser Direct Structuring) antenna or an FPC (flexible circuit board 200,Flexible Printed Circuit) antenna. But is not limited thereto.
According to some alternative embodiments, the radiator 190 of the third antenna is parallel to the second bezel antenna 120.
As shown in fig. 1, the radiator 190 is parallel to the first and second frame antennas 110 and 120, respectively. The radiator 190 is located between the second rim antenna 120 and the center position of the middle frame 100.
The parallel arrangement of the radiator 190 and the second frame antenna 120 is more beneficial to the coupling between the radiator 190 and the second frame antenna 120, and further is more beneficial to improving the radiation capability of the first frame antenna.
According to some alternative embodiments, the circuit board 200 has a first mounting hole; the connecting arm 130 has a second mounting hole 132, the first and second mounting holes 132 being aligned;
the terminal further comprises:
the fastener 170 is respectively inserted into the first mounting hole and the second mounting hole 132 to connect the circuit board 200 and the connection arm 130.
Fastener 170 may be a screw, but is not limited thereto.
If the circuit board 200 and the second bezel antenna 120 are connected by the feeding spring, in order to ensure the connection tightness of the second bezel antenna 120 and the circuit board 200, it is necessary to add a screw near the second bezel antenna 120, and the connection tightness of the second bezel antenna 120 and the circuit board 200 is reinforced by the screw. In the embodiment of the disclosure, the fastener 170 is used to connect the circuit board 200 and the connecting arm 130, so that the second feeding point 131 can feed the second frame antenna 120, the connection reliability of the middle frame 100 and the circuit board 200 is effectively ensured, the screw is not required to be arranged at the position adjacent to the second frame antenna 120, and the space occupied by at least one screw on the circuit board 200 is saved.
Without limitation, connecting circuit board 200 and connecting arm 130 with fastener 170 may save 11mm 2 Is more beneficial to the stacking of the whole terminal.
In some embodiments, the insulating support includes a third mounting hole aligned with the first mounting hole, and the fastener 170 is inserted through the first, second and third mounting holes 132, to connect the circuit board 200, the connection arm 130 and the insulating support.
When the terminal includes the third antenna, the circuit board 200, the connection arm 130 and the insulating support of the third antenna may be simultaneously connected by the fastener 170, so that the radiator 190 is suspended, which is also more advantageous in terms of space saving.
According to some alternative embodiments, the connecting arm 130 is adjacent to the break 140.
As shown in fig. 1 to 3, the edge of the connection arm 130 adjacent to the first frame antenna 110 is flush or approximately flush with the edge of the second frame antenna 120 adjacent to the first frame antenna 110, and such connection arm 130 may further ensure that the first frame antenna has a shorter path back to ground.
According to some optional embodiments, the terminal further comprises:
a third feed point 161 electrically connected to the radio frequency circuit portion 220 and the first frame antenna 110, and separately distributed from the first feed point 151, where the first feed point 151 is located between the third feed point 161 and the break 140;
the third feed point is used for transmitting wireless signals with a third frequency band and/or a fourth frequency band.
In the embodiment of the present disclosure, the third feeding point 161 and the first feeding point 151 share the first frame antenna 110 as a radiating arm, so as to realize the requirement of receiving and transmitting wireless signals of different frequency bands at the same time, and the structure of the shared first frame antenna 110 can reduce the setting of the radiating arm, thereby improving the utilization rate of the space in the terminal.
In practical applications, a frequency divider may be added to the radio frequency circuit portion 220, and the third feeding point 161 is implemented by the frequency divider to feed the first frame antenna 110, so as to transmit the radio signal in the third frequency band and the radio signal in the fourth frequency band at the same time.
When the third feeding point 161 feeds, that is, when the third feeding point 161 generates an electromagnetic field through the current of the first frame antenna 110 and transmits a wireless signal in the third frequency band and/or the fourth frequency band, a part of the current on the first frame antenna 110 is also coupled to the second frame antenna 120 and is connected to the ground portion 210 through the connecting arm 130 of the second frame antenna 120 and the parallel structure 180 adjacent to the first frame antenna 110. The placement of the shunt structure 180 can also improve the performance of the first frame antenna 110 when the third feed point 161 is feeding.
The third frequency band may be, without limitation, the GPS L1 frequency band. At this time, the first frame antenna may be multiplexed as a GPS L1 antenna. The peak performance of the GPS L1 antenna can be improved by the parallel structure 180.
The fourth frequency band may be, without limitation, WIFI2.4G, where the first frame antenna may be multiplexed into WIFI2.4G antennas.
In some embodiments, when the terminal includes the third feed point 161 and the third antenna, the third antenna can improve the radiation patterns and the radiation capacities of the GPS L1 antenna and the WIFI2.4G antenna, and can improve the peak performance of the GPS L1 antenna in addition to improving the radiation patterns of the WIFI5G/6E antenna, making up the radiation capacity of the WIFI5G/6E antenna toward the battery case, and weakening the efficiency pit of the WIFI5G/6E antenna back channel, so that the performance of the WIFI5G/6E antenna back channel is improved.
According to some optional embodiments, the terminal further comprises:
a first feeding spring 150 electrically connected to the radio frequency circuit part 220 and the first frame antenna 110, respectively, and forming the first feeding point 151 at a connection with the first frame antenna 110;
the second feeding spring 160 is electrically connected to the radio frequency circuit 220 and the first frame antenna 110, and forms the third feeding point 161 at a connection with the first frame antenna 110.
Generally, the first feeding spring 150 and the second feeding spring 160 are metal spring.
In some embodiments, the radio frequency circuit portion 220 includes:
a first matching circuit 221 electrically connected to the first feed point 151;
a second matching circuit 222 electrically connected to the second feed point 131;
a third matching circuit 223 electrically connected to the third feed point 161;
the middle frame 100 includes a long side and a short side, and the first frame antenna 110 and the second frame antenna 120 are both located on the short side;
at least part of the first matching circuit 221 is parallel to the short side of the middle frame 100, and the second matching circuit 222 and the third matching circuit 223 are perpendicular to the short side of the middle frame 100.
As shown in fig. 4, the first matching circuit 221 is arranged substantially laterally, and the second matching circuit 222 and the third matching circuit 223 are each arranged vertically. The first matching circuit 221 is located between the second matching circuit 222 and the third matching circuit 223.
Without limitation, the matching circuit may be used to perform impedance matching of the antenna to ensure efficient reception and transmission of wireless signals by the antenna.
In the embodiment of the disclosure, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a television or a wearable device.
The technical solution of the present disclosure will be further described with reference to two specific examples, and it will be understood that the present disclosure is not limited to the following embodiments.
Example one
The terminal is a mobile phone, and the mobile phone comprises a middle frame 100, a circuit board 200, a first feed point 151, a second feed point 131, a third feed point 161 and a parallel structure 180; wherein, the circuit board 200 is disposed on the middle frame 100, and the circuit board 200 includes a ground portion 210 and a radio frequency circuit portion 220. The middle frame 100 includes a first frame antenna 110, a second frame antenna 120, and a connection arm 130, where the connection arm 130 protrudes from the second frame antenna 120 toward the inside of the terminal (i.e., the connection arm 130 protrudes toward the circuit board 200), and a break 140 is provided between the first frame antenna 110 and the second frame antenna 120.
The first feed point 151 is electrically connected to the radio frequency circuit portion 220 and the first frame antenna 110, where the first frame antenna 110 is used as a WIFI5G/6E antenna for transmitting wireless signals with a WIFI5G/6E frequency band; the second feed point 131 is electrically connected to the radio frequency circuit portion 220 and the connection arm 130, respectively, and the second frame antenna 120 is used as a GPS L5 antenna for transmitting wireless signals with a GPS L5 frequency band; the third feed point 161 is electrically connected to the radio frequency circuit portion 220 and the first frame antenna 110, and is separately distributed from the first feed point 151, and the first feed point 151 is located between the third feed point 161 and the break 140; by setting the third feed point 161, the first frame antenna 110 can be further multiplexed into a GPS L1 antenna and a WIFI2.4G antenna so as to transmit a GPS L1 band wireless signal and a WIFI2.4G band wireless signal.
In this example, the first bezel antenna 110 and the second bezel antenna 120 are located in the upper left corner of the handset. As shown in fig. 3, the first frame antenna 110 may be used as a left radiating arm, the length X1 of the left radiating arm is 19.1mm (including a side surface), the second frame antenna 120 is used as a right radiating arm, the length X2 of the right radiating arm is 12.1mm, and the width X3 of the break 140 is 0.9mm. The environment of the antenna using the first and second frame antennas 110 and 120 as radiating arms is complicated, and as shown in fig. 1, the first and second frame antennas 110 and 120 are adjacent to larger metal devices such as a camera trim (DECO) 300 and a horn 400.
The length Y1 of the connection arm 130 is 3.52mm, and the distance X4 between the first feed point 151 and the third feed point 161 is 6.00mm. Generally, the middle frame 100 includes a bottom plate and a circular rim, and the break 140 is formed on the circular rim, and as shown in fig. 3, an opening 111 may be formed on the bottom plate to separate the first rim antenna 110 from the rest of the bottom plate and to separate the second rim antenna 120 from the rest of the bottom plate. Wherein, the distance Y2 between the first frame antenna 110 and the rest of the bottom board is 3.98mm, and the distance Y3 between the second frame antenna 120 and the rest of the bottom board is 1.63mm.
The radio frequency circuit portion 220 includes: a first matching circuit 221 electrically connected to the first feed point 151, a second matching circuit 222 electrically connected to the second feed point 131, and a third matching circuit 223 electrically connected to the third feed point 161. As shown in fig. 4, the first matching circuit 221 is arranged substantially laterally, and the second matching circuit 222 and the third matching circuit 223 are each arranged vertically. The first matching circuit 221 is located between the second matching circuit 222 and the third matching circuit 223.
The parallel structure 180 is connected to the connection arm 130, and is located on a side of the connection arm 130 adjacent to the first frame antenna 110, and is located between the second feed point 131 and the first frame antenna 110. The shunt structure 180 is typically a large capacitor for de-isolation.
When the first frame antenna 110 transmits a wireless signal under the feeding action of the first feeding point 151, or the first frame antenna 110 transmits a wireless signal under the feeding action of the third feeding point 161, the first frame antenna 110 and the second frame antenna 120 are coupled to form a current path (the current path is shown in (1) in fig. 4) connected to the ground portion 210 through the parallel structure 180. Taking the first frame antenna as a WIFI5G/6E antenna as an example, the coupling of the high-frequency signals by the WIFI5G/6E antenna is equivalent to the return of a path to ground. Because of the configuration of the parallel structure 180, the current path of the path to ground is shorter, so that the LOOP effect of the WIFI5G/6E antenna is reduced, the antenna coupling loss is reduced, and the efficiency pit is reduced and moves forward. As shown in table 1, this current path back to ground improves the average performance of the WIFI5G/6E antenna by 1.5dB, and improves the peak performance of the GPS L1 antenna by 1dB when the first frame antenna is multiplexed as the GPS L1 antenna.
The terminal further comprises: the third antenna, which is an LDS antenna, includes an insulating bracket and a radiator 190; the insulating bracket comprises a first part and a second part, wherein the first part is connected with the circuit board 200, and the second part is separated from the circuit board 200; the radiator 190 is located at the second portion to realize levitation of the radiator 190, and the radiator 190 is coupled with the second bezel antenna 120. As shown in fig. 1, the radiator 190 is parallel to the second bezel antenna 120. The radiator 190 improves the original radiation pattern of the first frame antenna, compensates the radiation capability of the first feed point 151 and the third feed point 161 through the first frame antenna 110 toward the battery cover side, and makes the first frame antenna pattern smoother. The efficiency pit of the WIFI5G antenna end channel is weakened, and after the third antenna is arranged as shown in the table 1, the performance of the WIFI5G antenna end channel is improved by 3dB, and meanwhile, the peak performance of the GPS L1 antenna is improved by 1dB.
Further, in the present example, the circuit board 200 has a first mounting hole, the connection arm 130 has a second mounting hole 132, the insulating bracket has a third mounting hole, and the first mounting hole, the second mounting hole 132, and the third mounting hole are aligned; the terminal further comprises: screws are respectively inserted into the first mounting hole, the second mounting hole 132 and the third mounting hole to connect the circuit board 200, the connection arm 130 and the insulating bracket. In this example, the projected diameter of the screw is 3mm and the avoidance radius is 1mm, and 11mm of connection between the circuit board 200 and the connection arm 130 by using the fastener 170 can be saved 2 Is more beneficial to the stacking of the whole terminal.
In this example, the radio frequency circuit portion 220 and the first frame antenna 110 are electrically connected through the first feeding dome 150, respectively, and a first feeding point 151 is formed at a connection with the first frame antenna 110; and, the radio frequency circuit portion 220 and the first frame antenna 110 are electrically connected through the second feeding spring 160, respectively, and a third feeding point 161 is formed at the connection with the first frame antenna 110.
Example two
The terminal is a mobile phone, and the difference between the second example and the first example is that the second example is the same as the first example except that the insulating support and the LDS radiator 190 are not provided.
Comparison scheme
The comparison scheme differs from example one in that: in the comparison scheme, the third antenna is not provided, and the parallel structure 180 is located at a side of the connection arm 130 away from the first frame antenna 110 (i.e., the parallel structure 180 is further away from the first frame antenna 110), the first frame antenna 110 and the second frame antenna 120 are coupled to a current path through the parallel structure 180 to ground further, and the current path is shown in fig. 4 (2), and the rest of the comparison scheme may be the same as the example one.
Performance test: the performance of the WIFI5G/6E antenna and the GPS L1 antenna in the WIFI5G frequency band in the example one, the example two and the comparative scheme are respectively tested, and the test results are shown in table 1. In table 1, the units in the results of TRP (total radiated power ) and TIS (total full term sensitivity, total istropic sensitivity) are dB.
TABLE 1 Performance test results
Fig. 5 is a block diagram of a terminal 800, according to an example embodiment. For example, the terminal 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, or the like.
Referring to fig. 5, the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.
The processing component 802 generally controls overall operation of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 806 provides power to the various components of the terminal 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal 800.
The multimedia component 808 includes a screen between the terminal 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the terminal 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the terminal 800. For example, the sensor assembly 814 may detect an on/off state of the terminal 800, a relative positioning of the components, such as a display and keypad of the terminal 800, a change in position of the terminal 800 or a component of the terminal 800, the presence or absence of user contact with the terminal 800, an orientation or acceleration/deceleration of the terminal 800, and a change in temperature of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communication between the terminal 800 and other devices, either wired or wireless. The terminal 800 may access a wireless network based on a communication standard, such as WiFi,4G or 5G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the terminal 800 can be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of terminal 800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
The features disclosed in the several product embodiments provided in the present disclosure may be combined arbitrarily without conflict to obtain new product embodiments.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A terminal, the terminal comprising:
the middle frame comprises a first frame antenna, a second frame antenna and a connecting arm, wherein the connecting arm protrudes from the second frame antenna to the inside of the terminal, and a break joint is arranged between the first frame antenna and the second frame antenna;
the circuit board is arranged on the middle frame and comprises a grounding part and a radio frequency circuit part;
the first feed point is electrically connected with the radio frequency circuit part and the first frame antenna respectively and is used for transmitting wireless signals with a first frequency band;
the parallel structure is connected with the connecting arm and is positioned at one side of the connecting arm adjacent to the first frame antenna;
the first frame antenna is coupled with the second frame antenna to form a current path connected to the ground part through the parallel structure when radiating wireless signals.
2. The terminal according to claim 1, characterized in that it comprises:
the second feed point is electrically connected with the radio frequency circuit part and the connecting arm respectively and is used for transmitting wireless signals with a second frequency band;
the parallel structure is positioned between the second feed point and the first frame antenna.
3. A terminal according to claim 1 or 2, characterized in that the terminal further comprises:
and the third antenna is arranged on the inner side of the second frame antenna and is coupled with the second frame antenna.
4. A terminal according to claim 3, wherein the radiator of the third antenna is parallel to the second bezel antenna.
5. A terminal according to claim 3, wherein the third antenna comprises an LDS antenna or an FPC antenna.
6. The terminal of claim 1 or 2, wherein the circuit board has a first mounting hole; the connecting arm has a second mounting hole, the first and second mounting holes being aligned;
the terminal further comprises:
the fastener is respectively penetrated in the first mounting hole and the second mounting hole to connect the circuit board and the connecting arm.
7. The terminal of claim 1, wherein the shunt structure comprises a capacitor.
8. The terminal of claim 1, wherein the connecting arm is adjacent to the break.
9. The terminal according to claim 1, characterized in that it further comprises:
the third feed point is electrically connected with the radio frequency circuit part and the first frame antenna respectively and is separated from the first feed point, and the first feed point is positioned between the third feed point and the fracture;
the third feed point is used for transmitting wireless signals with a third frequency band and/or a fourth frequency band.
10. The terminal according to claim 9, characterized in that the terminal further comprises:
the first feed spring piece is respectively and electrically connected with the radio frequency circuit part and the first frame antenna, and the first feed point is formed at the joint of the first feed spring piece and the first frame antenna;
the second feed spring piece is respectively and electrically connected with the radio frequency circuit part and the first frame antenna, and the third feed point is formed at the joint of the second feed spring piece and the first frame antenna.
CN202210122335.5A 2022-02-09 2022-02-09 Terminal Pending CN116613510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210122335.5A CN116613510A (en) 2022-02-09 2022-02-09 Terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210122335.5A CN116613510A (en) 2022-02-09 2022-02-09 Terminal

Publications (1)

Publication Number Publication Date
CN116613510A true CN116613510A (en) 2023-08-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210122335.5A Pending CN116613510A (en) 2022-02-09 2022-02-09 Terminal

Country Status (1)

Country Link
CN (1) CN116613510A (en)

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