WO2018040331A1 - Dispositif d'antenne et terminal mobile - Google Patents

Dispositif d'antenne et terminal mobile Download PDF

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Publication number
WO2018040331A1
WO2018040331A1 PCT/CN2016/107975 CN2016107975W WO2018040331A1 WO 2018040331 A1 WO2018040331 A1 WO 2018040331A1 CN 2016107975 W CN2016107975 W CN 2016107975W WO 2018040331 A1 WO2018040331 A1 WO 2018040331A1
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WO
WIPO (PCT)
Prior art keywords
throw switch
antenna device
radiator
pole single
switch
Prior art date
Application number
PCT/CN2016/107975
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English (en)
Chinese (zh)
Inventor
李克
罗振宇
Original Assignee
宇龙计算机通信科技(深圳)有限公司
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Application filed by 宇龙计算机通信科技(深圳)有限公司 filed Critical 宇龙计算机通信科技(深圳)有限公司
Publication of WO2018040331A1 publication Critical patent/WO2018040331A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use

Definitions

  • the present invention relates to the field of communications, and in particular, to an antenna device and a mobile terminal.
  • the metal traces are used in the mobile phone to achieve antenna tuning.
  • the structure of the metal wiring in the mobile phone is simple, the internal space of the mobile phone can be saved, but the metal wiring of the simple structure causes the working frequency band of the antenna to be relatively small, and it is difficult to meet the requirements of the multi-band of the mobile terminal.
  • the working frequency band of the antenna can be increased, but the complicated metal traces occupy more structural space inside the mobile phone, and thus there is no antenna with simple structure and multiple frequency bands.
  • the invention provides an antenna device and a mobile terminal which are simple in structure and realize multiple frequency bands.
  • the present invention provides an antenna device, wherein the antenna device includes a radiator, a power supply, a first switch assembly, and a second switch assembly, the radiator is provided with a feed point, and the feed source is electrically connected to the feed An electric point for feeding a feed signal to the radiator via the feed point, one end of the first switch component is electrically connected to the feed point, and the other end is grounded to adjust the radiator The low frequency resonance, one end of the second switch component is electrically connected to the radiator and is separated from the feed point, and the other end is grounded to adjust the intermediate frequency resonance or/and the high frequency resonance of the radiator.
  • the present invention also provides a mobile terminal comprising the antenna device described above.
  • the antenna device and the mobile terminal of the present invention are electrically connected to the feeding point and the ground through the first switching component, and adjust the low frequency resonance of the radiator, so that the antenna device has a plurality of low frequency bands; Simultaneously, the second switching component is electrically connected to the radiator and the ground, and the intermediate frequency resonance or/and the high frequency resonance of the radiator is adjusted, so that the antenna device has multiple intermediate frequency bands or / and multiple high frequency bands.
  • the antenna device has a multi-band operation mode under the action of disconnection or conduction of the first switch component and the second switch component, and the antenna device has a simple structure and meets multi-band communication requirements.
  • FIG. 1 is a schematic diagram of an antenna device provided by the present invention.
  • FIG. 2 is a schematic illustration of the antenna device of Figure 1;
  • FIG. 3 is a schematic illustration of the antenna device of Figure 1;
  • FIG. 4 is a schematic illustration of the antenna device of Figure 1;
  • FIG. 5 is a schematic illustration of the antenna device of Figure 1;
  • Figure 6 is a schematic illustration of the antenna device of Figure 1;
  • FIG. 7 is a schematic illustration of the antenna device of Figure 1;
  • FIG. 8 is a schematic diagram of a mobile terminal provided by the present invention.
  • an antenna device 100 provided by the present invention.
  • the antenna device 100 includes a radiator 10, a feed source 20, a first switch assembly 30, and a second switch assembly 40.
  • the radiator 10 is provided with a feed point 11.
  • the feed source 20 is electrically connected to the feed point 11 for feeding a feed signal to the radiator 10 via the feed point 11.
  • One end of the first switch component 30 is electrically connected to the feed point 11 and the other end is grounded to adjust the low frequency resonance of the radiator 10 .
  • One end of the second switch assembly 40 is electrically connected to the radiator 10 at a position separated from the feed point 11 and the other end is grounded to adjust an intermediate frequency resonance or/and a high frequency resonance of the radiator 10.
  • the antenna device 100 can be applied to a mobile terminal, which can be a mobile phone, a notebook computer, a tablet computer, or the like.
  • the antenna device 100 has a multi-band operation mode under the action of the first switch component 30 and the second switch component 40 being disconnected or turned on, and the antenna device 100 has a simple structure and meets multi-band communication requirements. .
  • the radiator 10 may be formed of a copper foil in a predetermined wiring form.
  • the radiator 10 can also be attached to a substrate and covered by a film to protect the radiator 10.
  • the radiator 10 After receiving the feed signal of the feed power source 20 via the feed point 11, the radiator 10 is excited by the feed signal of the feed power source 20, and the radiator 10 generates electromagnetic waves.
  • the radiator 10 has an elongated shape, and the length of the radiator 10 is 60 mm to 100 mm.
  • the radiator 10 may be fixed inside the casing of the mobile terminal.
  • the length of the radiator 10 may vary according to the outer dimensions of the mobile terminal, and the resonant frequency of the antenna device 100 may be adjusted by changing the length of the radiator 10.
  • the feeding point 11 can elastically contact the feeding port of the feeding power source 20 through the elastic piece, thereby realizing receiving the feeding signal of the feeding power source 20, and facilitating disassembly and maintenance of the radiator body 10.
  • the radiator 10 may also be made of other conductive metals, and the feed point 20 may also be electrically connected to the feed source 20 by soldering.
  • the feed power source 20 includes a radio frequency circuit 21 and a feed port 22 electrically connected to the radio frequency circuit 21.
  • the feed power source 20 can be disposed on a main board of the mobile terminal.
  • the feeding port 22 may be a pin disposed on the main board, and the feeding port 22 is in contact with the feeding point 11 and is electrically connected to each other, so that the radiator 10 passes through the feeding point. 11 receiving the radio frequency signal of the radio frequency circuit 21, thereby receiving the feed signal of the feed power source 20, so that the radiator 10 generates electromagnetic waves.
  • the feed power source 20 may further include a matching circuit electrically connected between the radio frequency circuit 21 and the feed port 22.
  • one end of the first switch component 30 is connected between the feed port 22 and the radio frequency circuit 21, and the other end is grounded.
  • the first switch component 30 is responsible for turning on or off the feed port 22 and the ground, thereby adjusting the feed signal of the radio frequency circuit 21 fed into the radiator 10, thereby adjusting the radiator 10 The frequency of the low frequency resonance.
  • the first switch component 30 can also be replaced by a logic circuit, or by providing a variable capacitor or a variable resistor between the feed port 22 and the ground.
  • the electrical port 21 is turned on or off from the ground.
  • the second switch component 40 is responsible for disconnecting or conducting the radiator 10 from the ground, thereby adjusting the potential property of the radiator 10 and changing the electromagnetic radiation structure of the radiator 10, To change the magnitude of the intermediate frequency resonance frequency or the high frequency resonance frequency of the radiator 10, or to simultaneously change the magnitude of the intermediate frequency resonance frequency and the frequency of the high frequency resonance frequency.
  • the position at which the second switch assembly 40 is coupled to the radiator 10 can also be changed as needed to adjust the resonant frequency of the radiator 10.
  • the second switch component 40 can also be replaced by a logic circuit, or by providing a variable capacitor or a variable resistor between the radiator 10 and the ground. 10 is turned on or off from the ground.
  • the radiator 10 further has a first branch 12 and a second branch 13, and the feed point 11 is fixed between the first branch 12 and the second branch 13, and the first branch 12 is used for A low frequency resonance is generated, the second branch 13 is used to generate intermediate frequency resonance or/and high frequency resonance, and the second switching component 40 is electrically connected to the second branch 13.
  • the first branch 12 and the second branch 13 both have an inverted "L" shape, and the length of the first branch 12 is greater than the length of the second branch 13, so that the first branch 12 The resulting resonant frequency is different from the resonant frequency produced by the second branch 13.
  • the magnitude of the resonance frequency generated by the second branch 13 can be changed by changing the length of the second branch 13, that is, the second branch 13 can be made to generate intermediate frequency resonance or high frequency resonance, or simultaneously generate intermediate frequency resonance and high Frequency resonance.
  • the radiator 10 may further include a third branch.
  • the first switch assembly 30 includes a first single-pole single-throw switch 31 and a second single-pole single-throw switch 32.
  • One end of the first single-pole single-throw switch 31 is connected to the feed point 11 The other end is connected to the first ground 51, and the second single-pole single-throw switch 32 has one end connected to the feeding point 11 and the other end connected to the second ground 52.
  • the first single-pole single-throw switch 31 includes a first fixed contact 311 and a first movable contact 312.
  • the first static contact 311 is electrically connected to the first ground 51
  • the first movable contact 312 is electrically connected to the feed port 22 .
  • the first movable contact 312 is separated or in contact with the first stationary contact 311 such that the feed port 22 is disconnected or turned on from the first ground 51.
  • the second single-pole single-throw switch 32 includes a second fixed contact 321 and a second movable contact 322.
  • the second static contact 321 is electrically connected to the second ground 52
  • the second movable contact 322 is electrically connected to the feed port 22 .
  • the second movable contact 322 is separated or in contact with the second stationary contact 321 such that the feed port 22 is disconnected or turned on from the second ground 52. Disconnecting or conducting with the first ground 51 by the feed port 22, and disconnecting or conducting the feed port 22 and the second ground 52, the first ground 51 is grounded The position is different from the second ground 52 grounding position, so that the feeding signal of the feeding port 22 can be changed in various forms, thereby adjusting the feeding port 22 to the said feeding point
  • the radiator 10 feeds a plurality of feed signals such that the antenna device 100 can obtain a plurality of low frequency resonances, that is, the antenna device 100 can obtain a plurality of low frequency bands.
  • the first single-pole single-throw switch 31 and the second single-pole single-throw switch 32 may each be replaced by a logic element; the switch assembly 30 may further include a third single-pole single-throw switch, the first A three-pole single-throw switch is connected between the feed port 22 and the ground, thereby increasing the low frequency frequency modulation structure of the antenna device 100.
  • the first single-pole single-throw switch 31 and the first ground 51 are electrically connected to the first matching circuit 61.
  • the first matching circuit 61 is composed of a capacitor device or a resistor device, or a capacitor device and a resistor device.
  • the first matching circuit 61 is connected between the first fixed contact 311 and the first ground 51 such that the feed port 22 passes through the first single-pole single-throw switch 31 and the first After the ground electrode 51 is turned on, the first matching circuit 61 is electrically connected between the feeding port 22 and the first ground electrode 51, so that the first matching circuit 61 can adjust the feeding port 22 Matching the capacitive reactance and the inductive reactance between the first ground 51, thereby changing the feed signal of the feed port 22 on the one hand, so that the low frequency resonant frequency of the radiator 10 is changed, and on the other hand
  • the first single-pole single-throw switch 31 has a large difference in the adjustment effect of the second single-pole single-throw switch 32 on the feed port 22, and on the other hand, the first matching circuit 61 can be matched.
  • the capacitive reactance of the first single-pole single-throw switch 31 is such that the feed port 22 can stably feed the feed signal to the radiator 10.
  • the first matching circuit 61 may also be electrically connected between the feed port 22 and the first single-pole single-throw switch 31.
  • the second matching circuit 62 is electrically connected between the second single-pole single-throw switch 32 and the second ground 52.
  • the second matching circuit 62 is composed of a capacitor device or a resistor device, or a capacitor device and a resistor device.
  • the second matching circuit 62 may be provided with a different capacitive device and a resistance device from the first matching circuit 61 such that the second matching circuit 61 is different in structure from the first matching circuit 61.
  • the second matching circuit 62 is connected between the second stationary contact 321 and the second ground 52 such that the feeding port 22 passes through the second single-pole single-throw switch 32 and the second After the ground 52 is turned on, the second matching circuit 62 is electrically connected between the feeding port 22 and the second ground 52, so that the second matching circuit 62 can adjust the feeding port 22 Matching the capacitive reactance and the inductive reactance between the second ground 52, thereby changing the feed signal of the feed port 22 on the one hand, so that the low frequency resonant frequency of the radiator 10 is changed, and on the other hand
  • the adjustment effect of the second single-pole single-throw switch 32 on the feed port 22 is different from the adjustment effect of the first single-pole single-throw switch 31 on the feed port 22, and on the other hand,
  • the second matching circuit 62 matches the capacitive reactance of the second single-pole single-throw switch 32 so that the feed port 22 can stably feed the feed signal to the radiator 10.
  • the second matching circuit 62 may also be electrically connected between
  • the second switch assembly 40 includes a third single-pole single-throw switch 41 and a fourth single-pole single-throw switch 42.
  • One end of the third single-pole single-throw switch 41 is connected to the second branch 14 The other end is connected to the third ground pole 53, and the fourth single pole single throw switch 42 has one end connected to the second branch 14 and the other end connected to the fourth ground pole 54.
  • the third single-pole single-throw switch 41 includes a third fixed contact 411 and a third movable contact 412.
  • the third static contact 411 is electrically connected to the third ground 53
  • the third movable contact 412 is electrically connected to the second branch 13 .
  • the third moving contact 412 is separated or in contact with the third stationary contact 411, so that the second branch 13 is disconnected or turned on from the third ground 53.
  • the fourth single pole single throw switch 42 includes a fourth fixed contact 421 and a fourth movable contact 422.
  • the fourth static contact 421 is electrically connected to the fourth ground electrode 54
  • the fourth movable contact 422 is electrically connected to the second branch 13 .
  • the fourth moving contact 422 is separated or in contact with the fourth stationary contact 421 such that the second branch 13 is disconnected or turned on from the fourth ground 534.
  • the second branch 13 is disconnected or turned on by the second branch 13 , and the second branch 13 is disconnected or turned on from the fourth ground 54 , and the third ground 53 is grounded.
  • the position is different from the grounding position of the fourth ground 54 such that the feeding signal of the second branch 13 can be changed in various forms, thereby adjusting the electromagnetic wave structure of the second branch 13, that is, changing the second
  • the resonant frequency of the branch 13 such that the antenna device 100 can obtain a plurality of intermediate frequency resonances, or a plurality of high frequency resonances, or simultaneously obtain a plurality of intermediate frequency resonances and a plurality of high frequency resonances, that is, the antenna device 100 can obtain a plurality of IF band or / and multiple HF bands.
  • the third single-pole single-throw switch 41 and the fourth single-pole single-throw switch 42 may be packaged together such that the third single-pole single-throw switch 41 and the fourth single-pole single-throw switch 42 are connected to The second branch 13 is at the same position.
  • the third single-pole single-throw switch 41 and the fourth single-pole single-throw switch 42 may each be replaced by a logic element; the second switch assembly 40 may further include a fifth single-pole single-throw switch.
  • a fifth single-pole single-throw switch connected between the second branch and the ground, thereby increasing an intermediate frequency or/and a high frequency frequency modulation structure of the antenna device 100;
  • the third single pole single throw switch 41 and the first The four single pole single throw switches 42 can also be coupled to different locations of the second branch 13, respectively.
  • the third single-pole single-throw switch 41 and the third ground 53 are electrically connected to the third matching circuit 63.
  • the third matching circuit 63 is composed of a capacitor device or a resistor device, or a capacitor device and a resistor device.
  • the third matching circuit 63 is different in structure from the first matching circuit 61 and the second matching circuit 62.
  • the third matching circuit 61 is connected between the third stationary contact 411 and the third ground 53 such that the second branch 13 passes through the third single-pole single-throw switch 41 and the third After the ground electrode 53 is turned on, the third matching circuit 63 is electrically connected between the second branch 13 and the third ground electrode 53, so that the third matching circuit 63 can adjust the second branch 13 Matching the capacitive reactance and the inductive reactance with the third ground 53 to change the feed signal of the second branch 13 on the one hand such that the intermediate frequency or/and the high frequency resonant frequency of the radiator 10 changes
  • the third matching circuit 63 can also be used to match the capacitive reactance of the third single-pole single-throw switch 41, so that the second branch 13 can stabilize the radiated electromagnetic waves.
  • the fourth single-pole single-throw switch 42 and the fourth ground 54 are electrically connected to the fourth matching circuit 64.
  • the fourth matching circuit 64 is composed of a capacitor device or a resistor device, or a capacitor device and a resistor device.
  • the fourth matching circuit 64 may be provided with a different capacitive device and a resistance device from the third matching circuit 63 such that the fourth matching circuit 64 is different in structure from the third matching circuit 63.
  • the fourth matching circuit 64 is connected between the fourth fixed contact 421 and the fourth ground 54 such that the second branch 13 passes the fourth single-pole single-throw switch 42 and the fourth After the ground electrode 54 is turned on, the fourth matching circuit 64 is electrically connected between the second branch 13 and the fourth ground electrode 54, so that the fourth matching circuit 64 can adjust the second branch 13 Matching the capacitive reactance and the inductive reactance with the fourth ground 54 to change the feed signal of the second branch 13 on the one hand such that the intermediate frequency or/and the high frequency resonant frequency of the radiator 10 changes
  • the adjustment effect of the fourth single-pole single-throw switch 42 on the second branch 13 can be made different from the adjustment effect of the third single-pole single-throw switch 41 on the second branch 13, and then another
  • the fourth matching circuit 64 can also be used to match the capacitive reactance of the fourth single-pole single-throw switch 42 so that the second branch 14 can stabilize the radiated electromagnetic waves.
  • the fourth matching circuit 64 may also be electrically connected between the second branch 13
  • the antenna device 100 further includes an antenna matching circuit 70.
  • One end of the antenna matching circuit 70 is connected to the radiator 10, and the other end is grounded.
  • the antenna matching circuit 70 is composed of a capacitor device or a resistor device, or a capacitor device and a resistor device.
  • the antenna matching circuit 70 may employ a circuit configuration different from the first matching circuit 61, the second matching circuit 62, the third matching circuit 63, and the fourth matching circuit 64.
  • the antenna matching circuit 70 is responsible for matching the capacitive reactance and the inductive reactance of the radiator 10 such that the radiator 10 can stabilize the radiated electromagnetic signal.
  • the antenna matching circuit 70 is coupled to the second branch 13 adjacent to the second switch assembly 40.
  • the antenna matching circuit 70 can also cancel the parasitic capacitive reactance of the second switching component 40, thereby improving the radiation performance of the antenna device 100.
  • the antenna device 100 provided by the present invention utilizes different combinations of the first single-pole single-throw switch 31, the second single-pole single-throw switch 32, the third single-pole single-throw switch 41, and the fourth single-pole single-throw switch 42 to thereby
  • the antenna device 100 can implement multiple communication modes, and has multiple low frequency bands, multiple intermediate frequency bands, and multiple high frequency bands. specific:
  • the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-throw switch The switch 42 is turned off, and the antenna device 100 has a first low frequency resonance, a first intermediate frequency resonance, and a first high frequency resonance.
  • the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned on, and the fourth single-pole single-throw switch The switch 42 is turned off, and the antenna device 100 has a second low frequency resonance, a second intermediate frequency resonance, and a second high frequency resonance.
  • the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-throw switch
  • the switch 42 is turned on, and the antenna device 100 has a third low frequency resonance, a third intermediate frequency resonance, and a third high frequency resonance.
  • a fourth communication mode is provided, the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned on, and the fourth single-pole single-throw switch The switch 42 is turned on, and the antenna device 100 has a fourth low frequency resonance, a fourth intermediate frequency resonance, and a fourth high frequency resonance.
  • a fifth communication mode is provided, the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-throw switch The switch 42 is turned off, and the antenna device 100 has a fifth low frequency resonance, a fifth intermediate frequency resonance, and a fifth high frequency resonance.
  • a sixth communication mode is provided, the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned on, and the fourth single-pole single-throw switch The switch 42 is turned off, and the antenna device 100 has a sixth low frequency resonance, a sixth intermediate frequency resonance, and a sixth high frequency resonance.
  • a seventh communication mode is provided, the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned on, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-throw switch The switch 42 is turned on, and the antenna device 100 has a seventh low frequency resonance, a seventh intermediate frequency resonance, and a seventh high frequency resonance.
  • the antenna device 100 has an eighth low frequency resonance, an eighth intermediate frequency resonance, and an eighth high frequency resonance.
  • a ninth communication mode is provided, the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-throw switch The switch 42 is turned off and the antenna device 100 has a ninth low frequency resonance, a ninth intermediate frequency resonance, and a ninth high frequency resonance.
  • a tenth communication mode is provided, the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned on, and the fourth single-pole single-throw switch The switch 42 is turned off and the antenna device 100 has a tenth low frequency resonance, a tenth intermediate frequency resonance, and a tenth high frequency resonance.
  • An eleventh communication mode is provided, the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-turn The throw switch 42 turns on the antenna device 100 to have an eleventh low frequency resonance, an eleventh intermediate frequency resonance, and an eleventh high frequency resonance.
  • the first single-pole single-throw switch 31 is turned on, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned on, and the fourth single-pole single-turn The throw switch 42 is turned on, and the antenna device 100 has a twelfth low frequency resonance, a twelfth intermediate frequency resonance, and a twelfth high frequency resonance.
  • a thirteenth communication mode is provided, the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-turn switch
  • the throw switch 42 turns off the antenna device 100 to have a thirteenth low frequency resonance, a thirteenth intermediate frequency resonance, and a thirteenth high frequency resonance.
  • the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned on, and the fourth single-pole single-turn
  • the throw switch 42 turns off the antenna device 100 to have a fourteenth low frequency resonance, a fourteenth intermediate frequency resonance, and a fourteenth high frequency resonance.
  • a fifteenth communication mode is provided, the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned off, the third single-pole single-throw switch 41 is turned off, and the fourth single-pole single-turn switch The throw switch 42 is turned on, and the antenna device 100 has a fifteenth low frequency resonance, a fifteenth intermediate frequency resonance, and a fifteenth high frequency resonance.
  • the first single-pole single-throw switch 31 is turned off, the second single-pole single-throw switch 32 is turned off, and the third single-pole single-throw switch 41 is turned on, the fourth single-pole single-turn The throw switch 42 is turned on, and the antenna device 100 has a sixteenth low frequency resonance, a sixteenth intermediate frequency resonance, and a sixteenth high frequency resonance.
  • the first switch component 30 and the second switch component 40 are turned on or off in different forms, so that the antenna device 100 can obtain sixteen communication modes, please refer to the figure that the antenna device 100 is more A reflection graph for a communication mode. It can be understood that, in other embodiments, if the first switch component 30 further includes a fifth single-pole single-throw switch, the first switch component 30 and the second switch component 40 are combined in different forms, so that The antenna device 100 can obtain thirty-two different communication modes, that is, the antenna device 100 can obtain thirty-two low frequency resonances, thirty-two intermediate frequency resonances, and thirty-two high frequency resonances; The second switch assembly 40 further includes a sixth single-pole single-throw switch, and the antenna device 100 can obtain sixty-four different communication modes.
  • the present invention further provides a mobile terminal 200 including a control circuit 80 and an antenna device 100 as described above, the control circuit 80 being electrically connected to the antenna device 100, The antenna device 100 is controlled to operate, and the transceiving signal of the antenna device 100 is processed.
  • control circuit 80 can be disposed on the main board of the mobile terminal 200.
  • the control circuit 80 electrically connects the first single-pole single-throw switch 31, the second single-pole single-throw switch 32, the third single-pole single-throw switch 41, and the fourth single-pole single-throw switch 42 of the antenna device 100 to control the
  • the first single pole single throw switch 31, the second single pole single throw switch 32, the third single pole single throw switch 41 and the fourth single pole single throw switch 42 are turned off or turned on, so that the antenna device 100 is
  • the control commands of control circuit 80 switch out a number of different communication modes.
  • the mobile terminal 200 refers to a computer device that can be used in mobile, including but not limited to a mobile phone, a notebook, a tablet, a POS machine, a car computer, a camera, and the like.
  • the antenna device and the mobile terminal of the present invention are electrically connected to the feeding point and the ground through the first switching component, and adjust the low frequency resonance of the radiator, so that the antenna device has a plurality of low frequency bands; Simultaneously, the second switching component is electrically connected to the radiator and the ground, and the intermediate frequency resonance or/and the high frequency resonance of the radiator is adjusted, so that the antenna device has multiple intermediate frequency bands or / and multiple high frequency bands.
  • the antenna device has a multi-band operation mode under the action of disconnection or conduction of the first switch component and the second switch component, and the antenna device has a simple structure and meets multi-band communication requirements.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

L'invention concerne un dispositif d'antenne et un terminal mobile. Le dispositif d'antenne comprend un radiateur, une source d'alimentation, un premier ensemble commutateur et un second ensemble commutateur. Le radiateur est pourvu d'un point d'alimentation. La source d'alimentation, qui est électriquement connectée au point d'alimentation, est utilisée pour alimenter le radiateur avec un signal d'alimentation par l'intermédiaire du point d'alimentation. Une extrémité du premier ensemble commutateur est connectée électriquement au point d'alimentation, et l'autre extrémité de celui-ci est mise à la terre pour ajuster une résonance basse fréquence du radiateur. Une extrémité du second ensemble commutateur est électriquement connectée à une position dans laquelle le radiateur est isolé du point d'alimentation, et l'autre extrémité de celui-ci est mise à la terre pour ajuster une résonance de fréquence intermédiaire et/ou une résonance haute fréquence du radiateur. Le dispositif d'antenne comporte une pluralité de bandes de fréquences intermédiaires et/ou une pluralité de bandes hautes fréquences. Le dispositif d'antenne a un mode de fonctionnement multibande sous l'effet du premier composant commutateur et du second composant commutateur étant éteints ou allumés, et, par conséquent, le dispositif d'antenne est de structure simple et répond aux exigences de communication multi-bandes.
PCT/CN2016/107975 2016-08-31 2016-11-30 Dispositif d'antenne et terminal mobile WO2018040331A1 (fr)

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