CN110336113B - Reconfigurable antenna and display screen component integrated electronic equipment - Google Patents
Reconfigurable antenna and display screen component integrated electronic equipment Download PDFInfo
- Publication number
- CN110336113B CN110336113B CN201910385751.2A CN201910385751A CN110336113B CN 110336113 B CN110336113 B CN 110336113B CN 201910385751 A CN201910385751 A CN 201910385751A CN 110336113 B CN110336113 B CN 110336113B
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- antenna
- switch unit
- display screen
- antenna switch
- reconfigurable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
Abstract
The invention provides an electronic device integrating a reconfigurable antenna and a display screen assembly, which comprises the reconfigurable antenna and the display screen assembly, wherein a flexible circuit board comprises a transmission line part, a first projection part and a second projection part which are positioned at the bottom of the flexible circuit board and a connector for interconnecting with a main circuit board PCB; a radiator of the reconfigurable antenna is arranged on the first protruding part, and a second antenna switch unit is arranged on the second protruding part; the path selection switch, the first antenna switch unit and the second antenna switch unit jointly form a reconfigurable antenna feed path and an aperture tuning path reconfiguration switching mechanism. The invention improves the system integration level, reduces the printed circuit board PCB required by antenna feed and aperture tuning positioned at the bottom of the electronic equipment, and the reconfigurable antenna can switch the working mode in a mode of switching the feed path and the aperture tuning position and optimally configure the antenna state.
Description
Technical Field
The invention relates to electronic equipment, in particular to electronic equipment integrating a reconfigurable antenna and a display screen component.
Background
With the advent of the 5G era, the use of mobile electronic devices such as smart phones has become more and more popular. In the 5G communication era, the number of frequency bands and the number of antennas are increased. The size of electronic devices is becoming smaller and lighter, and the screen occupation ratio is increasing. The clearance environment of the antenna is continuously reduced, so that the efficiency is lower and lower. The antenna radiator is made of a metal body of the metal middle frame or the metal rear cover of the intelligent device, so that the antenna can be far away from surrounding metal as far as possible, the clearance of the antenna is increased, and the efficiency of the antenna is improved. The tuning device Tuner, such as a tuning switch or a variable capacitor, is arranged at a proper position of an antenna feed path or an antenna radiator, so that the antenna can work in different frequency bands corresponding to different tuning device states, and the broadband and multiband work of the antenna can be realized. For feeding and tuning of the antenna at the bottom of the whole machine, a small printed circuit board is usually used for placing an antenna feeding unit, a tuning unit and the like. Radio frequency signals are conducted from the main printed circuit board PCB to the bottom small printed circuit board via coaxial lines. And a control signal and a power supply line of the tuning device are switched from the main board to the small printed circuit board PCB through the USB flexible signal flat cable so as to realize the control of the tuning device.
However, the antenna at the bottom of the smart device uses a part of the metal body of the metal middle frame or the metal rear cover as the antenna radiator, and the antenna needs to be disconnected from the main metal body through a gap. Therefore, a gap with the width of about 2 mm exists between the antenna radiator and the main metal body, and the physical connection strength is ensured through processes such as nano injection molding inside the gap. Therefore, this slot area will generally be the area where the antenna electric field strength is greater. When a consumer holds the gap area by hands or the head is close to the gap area, a medium is loaded on the antenna by a human body, so that the resonance frequency shift and the efficiency sharp attenuation of the antenna can be caused, and the communication signal is interrupted or even lost.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electronic device integrating a reconfigurable antenna and a display screen component, which improves the system integration level, reduces the Printed Circuit Boards (PCBs) required by antenna feed and aperture tuning positioned at the bottom of the electronic device, wherein the reconfigurable antenna is provided with two different antenna feed and aperture tuning paths, can be switched from one antenna working mode to another antenna working mode in a mode of switching the feed path and the aperture tuning position, and optimally configures the state of the antenna so as to realize better performance experience.
The technical scheme adopted by the invention for solving the technical problem is as follows: an electronic device integrating a reconfigurable antenna and a display screen assembly comprises a main circuit board PCB and a battery, and further comprises the reconfigurable antenna and display screen assembly, wherein the reconfigurable antenna and display screen assembly comprises a reconfigurable antenna, a display screen assembly and a metal middle frame; the radiator of the reconfigurable antenna is a first antenna radiator and comprises a first antenna switch unit, a second antenna switch unit and a grounding point, wherein the first antenna switch unit and the grounding point are arranged on a first protruding part, and the second antenna switch unit is arranged on a second protruding part; the first antenna switch unit and the second antenna switch unit are conducted with the antenna radiating body through metal elastic sheets or metal screws, the grounding point is connected with the first antenna radiating body, and the first antenna switch unit and the second antenna switch unit are respectively connected with the path selection switch; the common end of the path selection switch is connected with a radio frequency transmission line positioned in the flexible circuit board and is connected to a radio frequency module of the main circuit board PCB through a connector, the path selection switch is also connected with the first antenna switch unit and the second antenna switch unit respectively, and the path selection switch, the first antenna switch unit and the second antenna switch unit jointly form a reconfigurable antenna feed path and an aperture tuning path reconfiguration switching mechanism.
Preferably, when the path selection switch is connected to the first antenna switch unit and disconnected from the second antenna switch unit, the antenna feeds power through the first antenna switch unit, the other ground switch and the auxiliary inductance-capacitance device of the first antenna switch unit serve as impedance matching devices connected in parallel to the ground, and the other ground switch and the auxiliary inductance-capacitance device of the second antenna switch unit serve as antenna aperture tuning devices.
Preferably, when the path selection switch is connected to the second antenna switch unit and disconnected from the first antenna switch unit, the antenna feeds power through the second antenna switch unit, the other ground switch and the auxiliary inductance-capacitance device of the second antenna switch unit serve as impedance matching devices connected in parallel to the ground, and the other ground switch and the auxiliary inductance-capacitance device of the first antenna switch unit serve as antenna aperture tuning devices.
Preferably, the transmission line part comprises a first control line, a second control line and a first radio frequency line, the first control line and the second control line are respectively used for controlling the first antenna switch unit and the second antenna switch unit, one end of the first radio frequency line is connected with the radio frequency module through the connector, and the other end of the first radio frequency line is connected with the path selection switch.
Preferably, the path selection switch is a single-pole double-throw switch, and the first antenna switch unit and the second antenna switch unit are both single-pole double-throw switches.
Preferably, the display screen module comprises a protective plate, a touch screen module and a display module, wherein the protective plate is made of transparent plastic or glass, sapphire and the like, and the protective plate covers the display screen module.
Preferably, the flexible circuit board is made of modified polyimide MPI, liquid crystal polymer LCP or Low Temperature Co-fired Ceramic LTCC. The dielectric constant is almost kept constant; the tangent loss is small, the thermal expansion is very small, and the high-frequency high-speed soft board can be realized on the premise of ensuring higher reliability. The antenna feed radio frequency circuit is a strip line arranged in the flexible circuit board, replaces the traditional coaxial line, saves the cost, and solves the problem that the coaxial line cannot be placed due to the insufficient available height in the electronic equipment.
The electronic device provided by the invention includes but is not limited to mobile communication devices, such as mobile phones, wearable devices, car networking devices, unmanned aerial vehicles, tablet computers and the like. The reconfigurable antenna comprises a feed line, a path selection unit, a feed unit (including an impedance matching unit), a direct feed unit or an indirect coupling feed unit, an antenna radiator, an aperture tuning unit and the like. The antenna provided by the invention has the advantages that except the antenna radiator, other constituent units are integrated on the display screen assembly.
The reconfigurable antenna has the advantages that the system integration level is improved, the Printed Circuit Board (PCB) required by antenna feed and aperture tuning at the bottom of the electronic equipment is reduced, the reconfigurable antenna is provided with two different antenna feed and aperture tuning paths, one antenna working mode can be switched to another antenna working mode by switching the feed path and the aperture tuning position, and the antenna state is optimally configured, so that better performance experience is realized. The antenna configuration states of different usage scenarios of the user, such as left-handed, right-handed, head-on-hand, etc., can be preset in the configuration system of the electronic device 10. When the electronic device 10 detects that it is located in a certain operating frequency band or a certain user usage scenario, the antenna state may be configured differently, so that the antenna operates in an optimal demand state.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is a schematic diagram of an internal structure according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of a transmission line segment according to an embodiment of the present invention.
Fig. 5 is a schematic view of a metal middle frame according to an embodiment of the invention.
Fig. 6 is a schematic diagram of a reconfigurable antenna according to an embodiment of the present invention.
The invention is further described below with reference to the accompanying drawings.
Detailed Description
Shown in the attached drawings, the electronic device with the reconfigurable antenna and the display screen assembly integrated comprises a main circuit board PCB30 and a battery 40, and further comprises a reconfigurable antenna and display screen integrated assembly 20, wherein the reconfigurable antenna and display screen integrated assembly 20 comprises a reconfigurable antenna, a display screen assembly 21 and a metal middle frame 22, the display screen assembly 21 comprises a flexible circuit board 211 and a display screen module 212, and the display screen module 212 comprises a protective plate, a touch screen module and a display module, wherein the protective plate, the touch screen module and the display module cover the transparent plastic or glass, the sapphire and the like. The flexible circuit board 211 comprises display module control lines, a driving IC, a transmission line portion 2111, a first protrusion portion 2112 and a second protrusion portion 2113 at the bottom of the flexible circuit board 211, and a connector 2110 for interconnection with a main circuit board PCB 30; the radiator of the reconfigurable antenna is a first antenna radiator 221, and includes a first antenna switch unit 2118, a second antenna switch unit 2119 and a grounding point 2120, the first antenna switch unit 2118 and the grounding point 2120 are disposed on the first protrusion portion 2112, and the second antenna switch unit 2119 is disposed on the second protrusion portion 2113; the first antenna switch unit 2118 and the second antenna switch unit 2119 are conducted to the antenna radiator through a metal elastic sheet or a metal screw, the grounding point 2120 is connected to the first antenna radiator 221, and the first antenna switch unit 2118 and the second antenna switch unit 2119 are connected to the path selection switch 2117 respectively; the common end of the path selection switch 2117 is connected to a radio frequency transmission line located inside the flexible circuit board 211, and is connected to a radio frequency module of the main circuit board PCB30 through a connector 2110, the path selection switch 2117 is further connected to the first antenna switch unit 2118 and the second antenna switch unit 2119, respectively, and the path selection switch 2117, the first antenna switch unit 2118 and the second antenna switch unit 2119 jointly form a reconfigurable antenna feed path and an aperture tuning path reconfigurable switching mechanism. The transmission line portion 2111 includes a first control line 2114, a second control line 2115 and a first radio frequency line 2116, the first control line 2114 and the second control line 2115 are respectively used for controlling a first antenna switch unit 2118 and a second antenna switch unit 2119, one end of the first radio frequency line 2116 is connected to the radio frequency module through a connector 2110, and the other end is connected to a path selection switch 2117.
When the path selection switch 2117 is connected to the first antenna switch 2118 and disconnected from the second antenna switch 2119, the antenna feeds power through the first antenna switch 2118, the other ground switch and the auxiliary inductive capacitor device of the first antenna switch 2118 serve as impedance matching devices connected in parallel to the ground, and the other ground switch and the auxiliary inductive capacitor device of the second antenna switch 2119 serve as antenna aperture tuning devices.
When the path selection switch 2117 is connected to the second antenna switch 2119 and disconnected from the first antenna switch 2118, the antenna feeds power through the second antenna switch 2119, the other ground switch and the auxiliary inductive capacitor device of the second antenna switch 2119 serve as impedance matching devices connected in parallel to the ground, and the other ground switch and the auxiliary inductive capacitor device of the first antenna switch 2118 serve as antenna aperture tuning devices.
The antenna impedance matching device is used for improving the antenna impedance, can be in an open-loop matching mode or a closed-loop matching mode, and can tune the impedance of different frequency bands and different use scenes of the antenna by selecting the inductance-capacitance devices corresponding to different switch paths, so that the use requirements of wide frequency bands, multiple frequency bands and multiple use scenes of the antenna can be met. As a preferred embodiment, the first antenna switch unit 2118 and the second antenna switch unit 2119 provided by the present invention may adopt a single-pole four-throw SP4T switch. The fourth port of the first antenna switch element 2118 and the first port of the second antenna switch element 2119 are connected to the first port and the second port of the SPDT path selection switch 2117, respectively. The remaining ports of the first antenna switch element 2118 and the second antenna switch element 2119 are connected to ground through inductive capacitors. When the first antenna switch 2118 and the path selection switch 2117 are turned on, the second antenna switch 2119 and the path selection switch 2117 are turned off. The rf signal is fed to the antenna radiator through the path selection switch 2117 and the first antenna switch unit 2118. The remaining three switches of the first antenna switching unit 2118 serve as antenna matching connected in parallel to the ground, and can perform an impedance matching function. The remaining three switches of the second antenna switch unit 2119 perform inductive or capacitive loading on the antenna radiator to change the antenna radiation length, thereby realizing switching of different frequency bands of the antenna. When the second antenna switch 2119 and the path selection switch 2117 are turned on, the first antenna switch 2118 and the path selection switch 2117 are turned off. The rf signal is fed to the antenna radiator through the path selection switch 2117 and the second antenna switch unit 2119. The remaining three switches of the second antenna switching unit 2119 serve as antenna matching connected in parallel to the ground, and can perform an impedance matching function. The remaining three switches of the first antenna switch unit 2118 perform inductive or capacitive loading on the antenna radiator to change the antenna radiation length, thereby realizing switching of different frequency bands of the antenna. According to the reconfigurable antenna provided by the invention, when the head or hand of a consumer approaches the antenna and the intelligent device detects the performance deterioration of the antenna, the reconfigurable antenna can be switched to another antenna working mode in a mode of switching the feed path and the aperture tuning position, so that better performance experience is realized.
The invention provides a metal middle frame 22 of an electronic device 10. The metal bezel 22 is used for supporting the electronic device 10 and provides a complete metal reference ground for the electronic device 10. The bottom of the metal middle frame 22 is provided with a first clearance area, and the first clearance area divides the first antenna radiator 221 from the frame main body at the bottom of the metal middle frame 22 through a fracture. The width of the broken seam is usually about 1-3 mm. The first clearance area can also be provided with a loudspeaker, a USB, a headset and the like. And the antenna radiator is physically connected at the broken joint through nano injection molding or other processes. The shape, the number and the position of the broken seam can be set at will. The first antenna radiator 221 is connected to the first antenna switch unit 2118 and the second antenna switch unit 2119 through metal elastic pieces or metal screws.
Fig. 6 is a schematic diagram of a reconfigurable antenna provided by the present invention. As a person skilled in the art, other variations, such as changing the impedance matching form of the antenna, changing the type, number and position of the aperture tuning devices, changing the number and position of the grounding points, etc., can be easily derived based on the present invention without making the inventive invention.
As a derivative form of the present invention, those skilled in the art can provide one or more protrusions on the flexible circuit board 211 of the display panel assembly for placing the antenna feeding unit and the antenna aperture tuning unit without the inventive inventions. The antenna feed unit can be combined and matched by one or more tuning switches and a variable capacitor, and the antenna aperture tuning unit can also be combined and matched by one or more tuning switches and a variable capacitor. The radiator of the antenna can also be extended or added with branches at any position through a metal elastic sheet or a Flexible Printed Circuit (FPC). The feed circuit, the feed unit, the aperture tuning unit and the related control circuit of the antenna are all integrated on the flexible circuit board of the display screen assembly. The system integration level is improved, the Printed Circuit Board (PCB) required by antenna feed and aperture tuning at the bottom of the electronic equipment is reduced, the flexibility of the aperture tuning position is improved, and the problem that the PCB cannot be arranged at the positions of devices such as a horn sound cavity and the like, and a plurality of switch units are inconveniently arranged is effectively solved.
Claims (7)
1. An electronic device with a reconfigurable antenna integrated with a display screen assembly, the electronic device (10) comprising a main circuit board, PCB, (30) and a battery (40), characterized in that: the reconfigurable antenna and display screen integrated assembly (20) comprises a reconfigurable antenna, a display screen assembly (21) and a metal middle frame (22), the display screen assembly (21) comprises a flexible circuit board (211) and a display screen module (212), the flexible circuit board (211) comprises a transmission line part (2111), a first protruding part (2112) and a second protruding part (2113) which are positioned at the bottom of the flexible circuit board (211) and a connector (2110) which is used for being interconnected with a main circuit board PCB (30); the radiator of the reconfigurable antenna is a first antenna radiator (221) and comprises a first antenna switch unit (2118), a second antenna switch unit (2119) and a grounding point (2120), the first antenna switch unit (2118) and the grounding point (2120) are arranged on the first protruding portion (2112), and the second antenna switch unit (2119) is arranged on the second protruding portion (2113); the first antenna switch unit 2118 and the second antenna switch unit 2119 are conducted with the first antenna radiator (221) through a metal elastic sheet or a metal screw, the grounding point (2120) is connected with the first antenna radiator (221), and the first antenna switch unit (2118) and the second antenna switch unit (2119) are respectively connected with the path selection switch (2117); the common end of the path selection switch (2117) is connected with a radio frequency transmission line positioned in the flexible circuit board (211) and is connected to a radio frequency module of the main circuit board PCB (30) through a connector (2110), the path selection switch (2117) is also connected with a first antenna switch unit (2118) and a second antenna switch unit (2119) respectively, and the path selection switch (2117) and the first antenna switch unit (2118) and the second antenna switch unit (2119) jointly form a reconfigurable antenna feed path and an aperture tuning path reconfigurable switching mechanism.
2. The reconfigurable antenna and display screen assembly integrated electronic device of claim 1, wherein: when the path selection switch (2117) is connected to the first antenna switch unit (2118) and disconnected from the second antenna switch unit (2119), the antenna is fed through the first antenna switch unit (2118).
3. The reconfigurable antenna and display screen assembly integrated electronic device of claim 1, wherein: when the path selection switch (2117) is connected to the second antenna switch unit (2119) and disconnected from the first antenna switch unit (2118), the antenna is fed through the second antenna switch unit (2119).
4. The reconfigurable antenna and display screen assembly integrated electronic device of claim 1, wherein: the transmission line part (2111) comprises a first control line (2114), a second control line (2115) and a first radio frequency line (2116), the first control line (2114) and the second control line (2115) are respectively used for controlling a first antenna switch unit (2118) and a second antenna switch unit (2119), one end of the first radio frequency line (2116) is connected with the radio frequency module through a connector (2110), and the other end of the first radio frequency line is connected with a path selection switch (2117).
5. The reconfigurable antenna and display screen assembly integrated electronic device of claim 1, wherein: the path selection switch (2117) is a single-pole double-throw switch, and the first antenna switch unit (2118) and the second antenna switch unit (2119) are both single-pole double-throw switches.
6. The reconfigurable antenna and display screen assembly integrated electronic device of claim 1, wherein: the display screen module (212) comprises a transparent plastic, glass or sapphire protection plate, a touch screen module and a display module, wherein the transparent plastic, glass or sapphire protection plate, the touch screen module and the display module are covered on the display screen module.
7. The reconfigurable antenna and display screen assembly integrated electronic device of claim 1, wherein: the flexible circuit board (211) is made of modified polyimide MPI, liquid crystal polymer LCP or Low Temperature Co-fired Ceramic LTCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385751.2A CN110336113B (en) | 2019-05-09 | 2019-05-09 | Reconfigurable antenna and display screen component integrated electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385751.2A CN110336113B (en) | 2019-05-09 | 2019-05-09 | Reconfigurable antenna and display screen component integrated electronic equipment |
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| CN110336113A CN110336113A (en) | 2019-10-15 |
| CN110336113B true CN110336113B (en) | 2021-07-20 |
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| CN201910385751.2A Active CN110336113B (en) | 2019-05-09 | 2019-05-09 | Reconfigurable antenna and display screen component integrated electronic equipment |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514578A (en) * | 2016-01-29 | 2016-04-20 | 广东欧珀移动通信有限公司 | Antenna system and mobile terminal |
| KR102584972B1 (en) * | 2016-08-29 | 2023-10-05 | 삼성전자주식회사 | Wearable Device Including Multi-Band Antenna |
| CN107959120B (en) * | 2016-10-17 | 2020-07-10 | 比亚迪股份有限公司 | Reconfigurable antenna and mobile terminal |
| CN206452415U (en) * | 2017-01-10 | 2017-08-29 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN207572519U (en) * | 2017-06-06 | 2018-07-03 | 惠州Tcl移动通信有限公司 | Mobile terminal and its near-field communication aerial with display screen |
| CN109193116A (en) * | 2018-08-31 | 2019-01-11 | Oppo广东移动通信有限公司 | The control method of electronic equipment and electronic equipment |
| CN109407369A (en) * | 2018-11-19 | 2019-03-01 | 惠州Tcl移动通信有限公司 | A kind of liquid crystal display die set and intelligent terminal |
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Effective date of registration: 20211012 Address after: 314400 Building 1 (East), No.306 Gushui Road, Haichang street, Haining City, Jiaxing City, Zhejiang Province Patentee after: TIANTONG RUIHONG TECHNOLOGY Co.,Ltd. Address before: 314400 no.23-1, Shuangxue Road, Haining Economic Development Zone, Haining City, Jiaxing City, Zhejiang Province Patentee before: Tiantong Kaimei Microelectronics Co.,Ltd. |
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