WO2018040331A1 - 天线装置及移动终端 - Google Patents

天线装置及移动终端 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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WIPO (PCT)
Prior art keywords
throw switch
antenna device
radiator
pole single
switch
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Ceased
Application number
PCT/CN2016/107975
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English (en)
French (fr)
Inventor
李克
罗振宇
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.)
Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Publication date
Application filed by Yulong Computer Telecommunication Scientific Shenzhen Co Ltd filed Critical Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Publication of WO2018040331A1 publication Critical patent/WO2018040331A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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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Abstract

本发明公开了一种天线装置及移动终端，所述天线装置包括辐射体、馈电源、第一开关组件和第二开关组件，所述辐射体设有馈电点，所述馈电源电连接所述馈电点，用以经所述馈电点向所述辐射体馈入馈电信号，所述第一开关组件的一端电连接于所述馈电点，另一端接地，用以调整所述辐射体的低频谐振，所述第二开关组件的一端电连接所述辐射体与所述馈电点相隔离处，另一端接地，用以调整所述辐射体的中频谐振或/和高频谐振。所述天线装置具有多个中频频段或/和多个高频频段。所述天线装置在所述第一开关组件和所述第二开关组件的断开或导通的作用下具有多频段工作模式，进而所述天线装置结构简单并满足多频段通信要求。

Description

天线装置及移动终端
本申请要求于2016年8月31日提交中国专利局，申请号为201610796327.3、发明名称为“天线装置及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及一种天线装置及移动终端。
背景技术
目前手机中都是仅利用金属走线来实现天线调谐。然而当手机中金属走线结构简单时，可以节省手机内部空间，但是简单结构的金属走线导致天线的工作频段相对较少，难以满足移动终端多频段的需求。而通过增加金属走线结构，可以增加天线的工作频段，但是复杂的金属走线会占用手机内部较多的结构空间，从而导致目前没有一种结构简单并可以实现多种频段的天线。
发明内容
本发明提供一种结构简单并实现多种频段的天线装置及移动终端。
本发明提供一种天线装置，其中，所述天线装置包括辐射体、馈电源、第一开关组件和第二开关组件，所述辐射体设有馈电点，所述馈电源电连接所述馈电点，用以经所述馈电点向所述辐射体馈入馈电信号，所述第一开关组件的一端电连接于所述馈电点，另一端接地，用以调整所述辐射体的低频谐振，所述第二开关组件的一端电连接所述辐射体与所述馈电点相隔离处，另一端接地，用以调整所述辐射体的中频谐振或/和高频谐振。
本发明还提供一种移动终端，所述移动终端包括上述的天线装置。
本发明的天线装置及移动终端，通过所述第一开关组件电连接于所述馈电点和地极，并调整所述辐射体的低频谐振，从而使得所述天线装置具有多个低频频段；同时，还通过所述第二开关组件电连接于所述辐射体和地极，并调整所述辐射体的中频谐振或/和高频谐振，从而使得所述天线装置具有多个中频频段或/和多个高频频段。所述天线装置在所述第一开关组件和所述第二开关组件的断开或导通的作用下具有多频段工作模式，进而所述天线装置结构简单并满足多频段通信要求。
 附图说明
为了更清楚地说明本发明的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明提供的天线装置的示意图；
图2是图1的天线装置的示意图；
图3是图1的天线装置的示意图；
图4是图1的天线装置的示意图；
图5是图1的天线装置的示意图；
图6是图1的天线装置的示意图；
图7是图1的天线装置的示意图；
图8是本发明提供的移动终端的示意图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。
请参阅图1，本发明提供的一种天线装置100。所述天线装置100包括辐射体10、馈电源20、第一开关组件30和第二开关组件40。所述辐射体10设有馈电点11。所述馈电源20电连接所述馈电点11，用以经所述馈电点11向所述辐射体10馈入馈电信号。所述第一开关组件30的一端电连接于所述馈电点11，另一端接地，用以调整所述辐射体10的低频谐振。所述第二开关组件40的一端电连接所述辐射体10与所述馈电点11相隔离处，另一端接地，用以调整所述辐射体10的中频谐振或/和高频谐振。可以理解的是，所述第一开关组件30和所述第二开关组件40与地极的断开或导通，从而调整所述辐射体10的谐振频率，使得所述天线装置100具有多个频段。所述天线装置100可以应用于移动终端中，该移动终端可以是手机、笔记本电脑或平板电脑等。
通过所述第一开关组件30电连接于所述馈电点11和地极，并调整所述辐射体10的低频谐振，从而使得所述天线装置100具有多个低频频段；同时，还通过所述第二开关组件40电连接于所述辐射体10和地极，并调整所述辐射体10的中频或/和高频谐振，从而使得所述天线装置100具有多个中频频段或/和多个高频频段。所述天线装置100在所述第一开关组件30和所述第二开关组件40的断开或导通的作用下具有多频段工作模式，进而所述天线装置100结构简单并满足多频段通信要求。
本实施方式中，所述辐射体10可以由铜箔按预设走线形式构成。所述辐射体10还可以附设于基材上，并通过薄膜覆盖，从而对该辐射体10形成保护。所述辐射体10经所述馈电点11接收所述馈电源20的馈电信号后，受所述馈电源20的馈电信号激励，所述辐射体10产生电磁波。具体的，所述辐射体10呈长条状，所述辐射体10的长度为60mm~100mm。所述辐射体10可以是固定于移动终端的外壳内侧。所述辐射体10的长度可以根据移动终端的外形尺寸大小而改变，通过改变所述辐射体10的长度大小可以调节所述天线装置100的谐振频率。所述馈电点11可以通过弹片弹性接触所述馈电源20的馈电端口，从而实现接收所述馈电源20的馈电信号，并且方便对所述辐射体10进行拆卸维护。在其他实施方式中，所述辐射体10还可以是由其他导电金属构成，所述馈电点20还可以是经焊接方式电连接所述馈电源20。
本实施方式中，所述馈电源20包括射频电路21和电连接于所述射频电路21的馈电端口22。所述馈电源20可以设置于移动终端的主板上。所述馈电端口22可以是设置于主板上的引脚，所述馈电端口22与所述馈电点11相抵触，并相互导通，从而使得所述辐射体10经所述馈电点11接收所述射频电路21的射频信号，从而接收所述馈电源20的馈电信号，使得所述辐射体10产生电磁波。在其他实施方式中，所述馈电源20还可以包括电连接于所述射频电路21和所述馈电端口22之间的匹配电路。
本实施方式中，所述第一开关组件30一端连接于所述馈电端口22和所述射频电路21之间，另一端接地。所述第一开关组件30负责所述馈电端口22与地极导通或断开，从而调整所述射频电路21馈入所述辐射体10的馈电信号，从而调整所述辐射体10的低频谐振的频率。当然，在其他实施方式中，所述第一开关组件30还可以采用逻辑电路进行替换，或者是通过在所述馈电端口22和地极之间设置可变电容或可变电阻使得所述馈电端口21与地极导通或断开。
本实施方式中，所述第二开关组件40负责所述辐射体10与地极断开或导通，从而调整所述辐射体10的电位属性，并改变所述辐射体10的电磁波辐射结构，以改变所述辐射体10的中频谐振频率大小或者高频谐振频率大小，或者同时改变中频谐振频率大小和高频谐振频率大小。所述第二开关组件40连接于所述辐射体10的位置还可以根据需要进行改变，进而使得所述辐射体10的谐振频率获得调整。当然，在其他实施方式中，所述第二开关组件40还可以采用逻辑电路进行替换，或者是通过在所述辐射体10和地极之间设置可变电容或可变电阻使得所述辐射体10与地极导通或断开。
进一步地，所述辐射体10还具有第一分支12和第二分支13，所述馈电点11固定于所述第一分支12和第二分支13之间，所述第一分支12用以产生低频谐振，所述第二分支13用以产生中频谐振或/和高频谐振，所述第二开关组件40电连接于所述第二分支13。
本实施方式中，所述第一分支12和所述第二分支13均呈倒“L”状，所述第一分支12长度大于所述第二分支13长度，从而所述第一分支12的所产生的谐振频率不同于所述第二分支13所产生的谐振频率。通过改变所述第二分支13的长度可以改变所述第二分支13所产生的谐振频率大小，即可以使得所述第二分支13可以产生中频谐振或高频谐振，或者同时产生中频谐振和高频谐振。当然，在其他实施方式中，所述辐射体10还可以包括第三分支。
进一步地，请参阅图2，所述第一开关组件30包括第一单刀单掷开关31和第二单刀单掷开关32，所述第一单刀单掷开关31一端连接于所述馈电点11，另一端连接第一地极51，所述第二单刀单掷开关32一端连接于所述馈电点11，另一端连接第二地极52。
本实施方式中，所述第一单刀单掷开关31包括第一静触头311和第一动触头312。所述第一静触头311电连接于所述第一地极51，所述第一动触头312电连接于所述馈电端口22。所述第一动触头312与所述第一静触头311分离或接触，从而所述馈电端口22与所述第一地极51断开或导通。同理，所述第二单刀单掷开关32包括第二静触头321和第二动触头322。所述第二静触头321电连接于所述第二地极52，所述第二动触头322电连接于所述馈电端口22。所述第二动触头322与所述第二静触头321分离或接触，从而所述馈电端口22与所述第二地极52断开或导通。利用所述馈电端口22与所述第一地极51断开或导通，以及所述馈电端口22与所述第二地极52断开或导通，所述第一地极51接地位置不同于所述第二地极52接地位置，从而使得所述馈电端口22的馈电信号可以得到多种形式改变，进而调整所述馈电端口22经所述馈电点21向所述辐射体10馈入多种馈电信号，从而使得所述天线装置100可以获得多个低频谐振，即所述天线装置100可以获得多个低频频段。在其他实施方式中，所述第一单刀单掷开关31和所述第二单刀单掷开关32均可以采用逻辑元件替换；所述开关组件30还可以包括第三单刀单掷开关，所述第三单刀单掷开关连接于所述馈电端口22和地极之间，从而增加所述天线装置100的低频调频结构。
进一步地，请参阅图3，所述第一单刀单掷开关31和所述第一地极51之间电连接第一匹配电路61。
本实施方式中，所述第一匹配电路61由电容器件或电阻器件，或者是电容器件和电阻器件混合构成。所述第一匹配电路61连接于所述第一静触头311和所述第一地极51之间，使得所述馈电端口22经所述第一单刀单掷开关31与所述第一地极51导通后，所述馈电端口22与所述第一地极51之间还电连接所述第一匹配电路61，从而所述第一匹配电路61可以调整所述馈电端口22和所述第一地极51之间的容抗和感抗相匹配，从而一方面改变所述馈电端口22的馈电信号，使得所述辐射体10的低频谐振频率改变，另一方面可以使得所述第一单刀单掷开关31较所述第二单刀单掷开关32对所述馈电端口22的调整作用存在较大差异，再另一方面还可以利用所述第一匹配电路61匹配所述第一单刀单掷开关31的容抗，从而使得所述馈电端口22可以稳定向所述辐射体10馈入馈电信号。在其他实施方式中，所述第一匹配电路61还可以是电连接于所述馈电端口22和所述第一单刀单掷开关31之间。
进一步地，请参阅图4，所述第二单刀单掷开关32和所述第二地极52之间电连接第二匹配电路62。
本实施方式中，所述第二匹配电路62由电容器件或电阻器件，或者是电容器件和电阻器件混合构成。所述第二匹配电路62可以与所述第一匹配电路61设置不同的电容器件和电阻器件，以使所述第二匹配电路61结构不同于所述第一匹配电路61。所述第二匹配电路62连接于所述第二静触头321和所述第二地极52之间，使得所述馈电端口22经所述第二单刀单掷开关32与所述第二地极52导通后，所述馈电端口22与所述第二地极52之间还电连接所述第二匹配电路62，从而所述第二匹配电路62可以调整所述馈电端口22和所述第二地极52之间的容抗和感抗相匹配，从而一方面改变所述馈电端口22的馈电信号，使得所述辐射体10的低频谐振频率改变，另一方面可以使得所述第二单刀单掷开关32对所述馈电端口22的调整作用区别于所述第一单刀单掷开关31对所述馈电端口22的调整作用，再另一方面还可以利用所述第二匹配电路62匹配所述第二单刀单掷开关32的容抗，从而使得所述馈电端口22可以稳定向所述辐射体10馈入馈电信号。在其他实施方式中，所述第二匹配电路62还可以是电连接于所述馈电端口22和所述第二单刀单掷开关32之间。
进一步地，请参阅图5，所述第二开关组件40包括第三单刀单掷开关41和第四单刀单掷开关42，所述第三单刀单掷开关41一端连接于所述第二分支14，另一端连接第三地极53，所述第四单刀单掷开关42一端连接于所述第二分支14，另一端连接第四地极54。
本实施方式中，所述第三单刀单掷开关41包括第三静触头411和第三动触头412。所述第三静触头411电连接于所述第三地极53，所述第三动触头412电连接于所述第二分支13。所述第三动触头412与所述第三静触头411分离或接触，从而所述第二分支13与所述第三地极53断开或导通。同理，所述第四单刀单掷开关42包括第四静触头421和第四动触头422。所述第四静触头421电连接于所述第四地极54，所述第四动触头422电连接于所述第二分支13。所述第四动触头422与所述第四静触头421分离或接触，从而所述第二分支13与所述第四地极534断开或导通。利用所述第二分支13与所述第三地极53断开或导通，以及所述第二分支13与所述第四地极54断开或导通，所述第三地极53接地位置不同于所述第四地极54接地位置，从而使得所述第二分支13的馈电信号可以得到多种形式改变，进而调整所述第二分支13的电磁波结构，即改变所述第二分支13的谐振频率，从而使得所述天线装置100可以获得多个中频谐振，或多个高频谐振，或者同时获得多个中频谐振和多个高频谐振，即所述天线装置100可以获得多个中频频段或/和多个高频频段。具体的，所述第三单刀单掷开关41和所述第四单刀单掷开关42可以封装在一起，从而使得所述第三单刀单掷开关41和所述第四单刀单掷开关42连接于所述第二分支13相同位置处。在其他实施方式中，所述第三单刀单掷开关41和所述第四单刀单掷开关42均可以采用逻辑元件替换；所述第二开关组件40还可以包括第五单刀单掷开关，所述第五单刀单掷开关连接于所述第二分支和地极之间，从而增加所述天线装置100的中频或/和高频调频结构；所述第三单刀单掷开关41和所述第四单刀单掷开关42还可以分别连接于所述第二分支13的不同位置处。
进一步地，请参阅图6，所述第三单刀单掷开关41和所述第三地极53之间电连接第三匹配电路63。
本实施方式中，所述第三匹配电路63由电容器件或电阻器件，或者是电容器件和电阻器件混合构成。所述第三匹配电路63结构不同于所述第一匹配电路61和所述第二匹配电路62。所述第三匹配电路61连接于所述第三静触头411和所述第三地极53之间，使得所述第二分支13经所述第三单刀单掷开关41与所述第三地极53导通后，所述第二分支13与所述第三地极53之间还电连接所述第三匹配电路63，从而所述第三匹配电路63可以调整所述第二分支13和所述第三地极53之间的容抗和感抗相匹配，从而一方面改变所述第二分支13的馈电信号，使得所述辐射体10的中频或/和高频谐振频率改变，另一方面还可以利用所述第三匹配电路63匹配所述第三单刀单掷开关41的容抗，从而使得所述第二分支13可以稳定辐射电磁波。在其他实施方式中，所述第三匹配电路63还可以是电连接于所述第二分支13和所述第三单刀单掷开关41之间。
进一步地，请参阅图7，所述第四单刀单掷开关42和所述第四地极54之间电连接第四匹配电路64。
本实施方式中，所述第四匹配电路64由电容器件或电阻器件，或者是电容器件和电阻器件混合构成。所述第四匹配电路64可以与所述第三匹配电路63设置不同的电容器件和电阻器件，以使所述第四匹配电路64结构不同于所述第三匹配电路63。所述第四匹配电路64连接于所述第四静触头421和所述第四地极54之间，使得所述第二分支13经所述第四单刀单掷开关42与所述第四地极54导通后，所述第二分支13与所述第四地极54之间还电连接所述第四匹配电路64，从而所述第四匹配电路64可以调整所述第二分支13和所述第四地极54之间的容抗和感抗相匹配，从而一方面改变所述第二分支13的馈电信号，使得所述辐射体10的中频或/和高频谐振频率改变，另一方面可以使得所述第四单刀单掷开关42对所述第二分支13的调整作用区别于所述第三单刀单掷开关41对所述第二分支13的调整作用，再另一方面还可以利用所述第四匹配电路64匹配所述第四单刀单掷开关42的容抗，从而使得所述第二分支14可以稳定辐射电磁波。在其他实施方式中，所述第四匹配电路64还可以是电连接于所述第二分支13和所述第四单刀单掷开关42之间。
进一步地，所述天线装置100还包括天线匹配电路70，所述天线匹配电路70一端连接于所述辐射体10，另一端接地。
本实施方式中，所述天线匹配电路70由电容器件或电阻器件，或者是电容器件和电阻器件混合构成。所述天线匹配电路70可以采用不同于所述第一匹配电路61、第二匹配电路62、第三匹配电路63和第四匹配电路64的电路结构。所述天线匹配电路70负责匹配所述辐射体10的容抗和感抗，使得所述辐射体10可以稳定辐射电磁信号。所述天线匹配电路70连接于所述第二分支13邻近所述第二开关组件40处。所述天线匹配电路70还可以抵消所述第二开关组件40的寄生容抗，从而提高所述天线装置100的辐射性能。
本发明所提供的天线装置100利用所述第一单刀单掷开关31、第二单刀单掷开关32、第三单刀单掷开关41和第四单刀单掷开关42不同形式的组合，从而使得所述天线装置100可以实现多种通信模式，具有多个低频频段、多个中频频段和多个高频频段。具体的：
提供第一种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42断开，所述天线装置100具有第一低频谐振、第一中频谐振和第一高频谐振。
提供第二种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42断开，所述天线装置100具有第二低频谐振、第二中频谐振和第二高频谐振。
提供第三种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42导通，所述天线装置100具有第三低频谐振、第三中频谐振和第三高频谐振。
提供第四种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42导通，所述天线装置100具有第四低频谐振、第四中频谐振和第四高频谐振。
提供第五种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42断开，所述天线装置100具有第五低频谐振、第五中频谐振和第五高频谐振。
提供第六种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42断开，所述天线装置100具有第六低频谐振、第六中频谐振和第六高频谐振。
提供第七种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42导通，所述天线装置100具有第七低频谐振、第七中频谐振和第七高频谐振。
提供第八种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32导通，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42导通所述天线装置100具有第八低频谐振、第八中频谐振和第八高频谐振。
提供第九种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42断开所述天线装置100具有第九低频谐振、第九中频谐振和第九高频谐振。
提供第十种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42断开所述天线装置100具有第十低频谐振、第十中频谐振和第十高频谐振。
提供第十一种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42导通所述天线装置100具有第十一低频谐振、第十一中频谐振和第十一高频谐振。
提供第十二种通信模式，所述第一单刀单掷开关31导通，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42导通，所述天线装置100具有第十二低频谐振、第十二中频谐振和第十二高频谐振。
提供第十三种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42断开所述天线装置100具有第十三低频谐振、第十三中频谐振和第十三高频谐振。
提供第十四种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42断开所述天线装置100具有第十四低频谐振、第十四中频谐振和第十四高频谐振。
提供第十五种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41断开，所述第四单刀单掷开关42导通，所述天线装置100具有第十五低频谐振、第十五中频谐振和第十五高频谐振。
提供第十六种通信模式，所述第一单刀单掷开关31断开，所述第二单刀单掷开关32断开，所述第三单刀单掷开关41导通，所述第四单刀单掷开关42导通，所述天线装置100具有第十六低频谐振、第十六中频谐振和第十六高频谐振。
利用所述第一开关组件30和所述第二开关组件40以不同形式导通或断开，使得所述天线装置100可以获得十六种通信模式，请参见图为所述天线装置100在多种通信模式下的反射曲线图。可以理解的是，在其他实施方式中，若所述第一开关组件30还包括第五单刀单掷开关，通过所述第一开关组件30和所述第二开关组件40不同形式组合，使得所述天线装置100可以获得三十二种不同的通信模式，即所述天线装置100可以获得三十二种低频谐振、三十二种中频谐振和三十二种高频谐振；若在此基础上，所述第二开关组件40还包括第六单刀单掷开关，则所述天线装置100可以获得六十四种不同的通信模式。
请参阅图7和图8，本发明还提供一种移动终端200，所述移动终端200包括控制电路80和如上所述的天线装置100，所述控制电路80与所述天线装置100电连接，以控制所述天线装置100运行，并处理所述天线装置100的收发信号。
本实施方式中，所述控制电路80可以设置于所述移动终端200的主板上。所述控制电路80电连接天线装置100的所述第一单刀单掷开关31、第二单刀单掷开关32、所述第三单刀单掷开关41和第四单刀单掷开关42，以控制所述第一单刀单掷开关31、第二单刀单掷开关32、所述第三单刀单掷开关41和第四单刀单掷开关42断开或导通，从而使得所述天线装置100根据所述控制电路80的控制指令切换出多种不同的通信模式。可以理解的是，所述移动终端200指可以在移动中使用的计算机设备，包括但不限于手机、笔记本、平板电脑、POS机、车载电脑、相机等。
本发明的天线装置及移动终端，通过所述第一开关组件电连接于所述馈电点和地极，并调整所述辐射体的低频谐振，从而使得所述天线装置具有多个低频频段；同时，还通过所述第二开关组件电连接于所述辐射体和地极，并调整所述辐射体的中频谐振或/和高频谐振，从而使得所述天线装置具有多个中频频段或/和多个高频频段。所述天线装置在所述第一开关组件和所述第二开关组件的断开或导通的作用下具有多频段工作模式，进而所述天线装置结构简单并满足多频段通信要求。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (10)

  1. 一种天线装置，其特征在于，所述天线装置包括辐射体、馈电源、第一开关组件和第二开关组件，所述辐射体设有馈电点，所述馈电源电连接所述馈电点，用以经所述馈电点向所述辐射体馈入馈电信号，所述第一开关组件的一端电连接于所述馈电点，另一端接地，用以调整所述辐射体的低频谐振，所述第二开关组件的一端电连接所述辐射体与所述馈电点相隔离处，另一端接地，用以调整所述辐射体的中频谐振或/和高频谐振。
  2. 根据权利要求1所述的天线装置，其特征在于，所述辐射体还具有第一分支和第二分支，所述馈电点固定于所述第一分支和第二分支之间，所述第一分支用以产生低频谐振，所述第二分支用以产生中频谐振或/和高频谐振，所述第二开关组件电连接于所述第二分支。
  3. 根据权利要求2所述的天线装置，其特征在于，所述第一开关组件包括第一单刀单掷开关和第二单刀单掷开关，所述第一单刀单掷开关一端连接于所述馈电点，另一端连接第一地极，所述第二单刀单掷开关一端连接于所述馈电点，另一端连接第二地极。
  4. 根据权利要求3所述的天线装置，其特征在于，所述第一单刀单掷开关和所述第一地极之间电连接第一匹配电路。
  5. 根据权利要求3所述的天线装置，其特征在于，所述第二单刀单掷开关和所述第二地极之间电连接第二匹配电路。
  6. 根据权利要求2所述的天线装置，其特征在于，所述第二开关组件包括第三单刀单掷开关和第四单刀单掷开关，所述第三单刀单掷开关一端连接于所述第二分支，另一端连接第三地极，所述第四单刀单掷开关一端连接于所述第二分支，另一端连接第四地极。
  7. 根据权利要求6所述的天线装置，其特征在于，所述第三单刀单掷开关和所述第三地极之间电连接第三匹配电路。
  8. 根据权利要求6所述的天线装置，其特征在于，所述第四单刀单掷开关和所述第四地极之间电连接第四匹配电路。
  9. 根据权利要求1~8任意一项所述的天线装置，其特征在于，所述天线装置还包括天线匹配电路，所述天线匹配电路一端连接于所述辐射体，另一端接地。
  10. 一种移动终端，其特征在于，所述移动终端包括权利要求1~9任意一项所述的天线装置。
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