CN110323548B - Electronic device - Google Patents
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- CN110323548B CN110323548B CN201810285748.9A CN201810285748A CN110323548B CN 110323548 B CN110323548 B CN 110323548B CN 201810285748 A CN201810285748 A CN 201810285748A CN 110323548 B CN110323548 B CN 110323548B
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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
- H01Q1/12—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
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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
- 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
- H01Q1/243—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 with built-in antennas
- H01Q1/244—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 with built-in antennas extendable from a housing along a given path
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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
- H01Q5/10—Resonant antennas
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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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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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
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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
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The application provides an electronic device. The electronic device comprises a device body, a first antenna module, a controller and an adjusting module, wherein the first antenna module comprises a first antenna radiator which is movably connected to the device body, and when the first antenna radiator is located at a first position relative to the device body, the first antenna module works at a first frequency band; when the first antenna radiator is located at a second position relative to the device body, the first antenna module works at a second frequency band, the controller generates a first control signal, the adjusting module receives the first control signal and adjusts the working frequency band of the first antenna module from the second frequency band to the first frequency band under the control of the first control signal, wherein the first position is different from the second position, and the first frequency band is different from the second frequency band. The frequency offset of the electronic device is improved.
Description
Technical Field
The present application relates to the field of electronic devices, and more particularly, to an electronic apparatus.
Background
An antenna is a converter for converting a guided wave transmitted on a transmission line into an electromagnetic wave transmitted in an unbounded medium (usually free space), or a device for converting an electromagnetic wave transmitted in an unbounded medium into a guided wave that can be transmitted on a transmission line. Electronic devices such as mobile phones generally include an antenna to realize communication functions such as transmission of images and sounds of the electronic devices such as mobile phones. In general, an antenna operates in a predetermined frequency band, and when an environment around the antenna changes, the frequency band in which the antenna actually operates may shift, thereby causing a poor communication effect of an electronic device.
Disclosure of Invention
The application provides an electronic device, which comprises a device body, a first antenna module, a controller and an adjusting module, wherein the first antenna module comprises a first antenna radiator, the first antenna radiator is movably connected to the device body, and when the first antenna radiator is located at a first position compared with the device body, the first antenna module works at a first frequency band; when the first antenna radiator is located at a second position relative to the device body, the first antenna module works at a second frequency band, the controller generates a first control signal, the adjusting module receives the first control signal and adjusts the working frequency band of the first antenna module from the second frequency band to the first frequency band under the control of the first control signal, wherein the first position is different from the second position, and the first frequency band is different from the second frequency band.
Compared with the prior art, when the position of the first antenna radiator is changed compared with the position of the device body, the controller generates a first control signal, the adjusting module receives the first control signal and adjusts the working frequency band of the first antenna module to a first frequency band under the control of the first control signal, and therefore the problem of frequency offset generated by an electronic device when the position of the first antenna radiator is changed compared with the position of the device body is solved.
The application also provides an electronic device, the electronic device includes device body, first antenna module, sensor, controller and adjustment module, first antenna module includes first antenna radiator, first antenna radiator swing joint in the device body, the sensor sensing first antenna radiator compare in the position change of device body and according to first antenna radiator compare in the position change of device body obtains the sensing signal, the controller basis the sensing signal sends control signal, the adjustment module is used for receiving control signal and control under control signal's control the frequency channel of first antenna module work keeps unchangeable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram illustrating a first antenna radiator in an electronic device according to a first embodiment of the present disclosure in a first position compared to a device body.
Fig. 2 is a schematic structural diagram of a first antenna radiator in an electronic device according to a first embodiment of the present disclosure in a second position compared to a device body.
Fig. 3 is a schematic circuit structure diagram of an electronic device according to a first embodiment of the present disclosure.
Fig. 4 is a schematic circuit structure diagram of an electronic device according to a second embodiment of the present application.
Fig. 5 is a schematic circuit structure diagram of an electronic device according to a third embodiment of the present application.
Fig. 6 is a schematic circuit structure diagram of an electronic device according to a fourth embodiment of the present application.
Fig. 7 is a schematic circuit structure diagram of an electronic device according to a fifth embodiment of the present application.
Fig. 8 is a schematic structural diagram of an electronic device according to a second embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
In the description of the embodiments of the present application, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, and do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural view illustrating a first antenna radiator in an electronic device according to a first embodiment of the present application at a first position relative to a device body; fig. 2 is a schematic structural diagram illustrating a first antenna radiator of an electronic device in a second position compared to a device body according to a first embodiment of the present disclosure; fig. 3 is a schematic circuit structure diagram of an electronic device according to a first embodiment of the present disclosure. The electronic device 10 includes, but is not limited to, a smart phone, an internet device (MID), an electronic book, a Portable Player Station (PSP), a Personal Digital Assistant (PDA), or other devices that communicate via an antenna.
The electronic device 10 includes a device body 100, a first antenna module 200, a controller 300, and an adjustment module 400. The first antenna module 200 includes a first antenna radiator 210, and the first antenna radiator 210 is movably connected to the device body 100. When the first antenna radiator 210 is located at a first position relative to the device body 100, the first antenna module 200 operates at a first frequency band, and when the first antenna radiator 210 is located at a second position relative to the device body 100, the first antenna module 200 operates at a second frequency band. When the first antenna radiator 210 is located at a second position relative to the device body 100, the controller 300 generates a first control signal, and the adjusting module 400 receives the first control signal and adjusts the operating frequency band of the first antenna module 200 from the second frequency band to the first frequency band under the control of the first control signal. Wherein the first location is different from the second location, and the first frequency band is different from the second frequency band.
Compared with the prior art, when the position of the first antenna radiator 210 relative to the device body 100 changes, the controller 300 generates a first control signal, the adjusting module 400 receives the first control signal, and adjusts the working frequency band of the first antenna module 200 from the second frequency band to the first frequency band under the control of the first control signal, so as to solve the problem of frequency offset generated by an electronic device when the position of the first antenna radiator 210 relative to the device body 100 changes.
Further, referring to fig. 4, fig. 4 is a schematic circuit structure diagram of an electronic device according to a second embodiment of the present application. In this embodiment, the first antenna module 200 further includes a first rf signal source 230, and the first rf signal source 230 is configured to generate an excitation signal. The first antenna radiator 210 receives the excitation signal, converts the excitation signal into an electromagnetic wave signal, and radiates the electromagnetic wave signal. The adjusting module 400 includes a first matching circuit 410 and a second matching circuit 420. When the first antenna radiator 210 is at a first position compared to the device body 100, the controller 300 controls the first matching circuit 410 to electrically connect the first rf signal source 230 and the first antenna radiator 210. The excitation signal is loaded on the first antenna radiator 210 via the first matching circuit 410. When the first antenna radiator 210 is located at the second position compared to the device body 100, the controller 300 disconnects the electrical connection between the first matching circuit 410 and the first rf signal source 230 and the first antenna radiator 210, and controls the second matching circuit 420 to electrically connect the first rf signal source 230 and the first antenna radiator 210, and the excitation signal is applied to the first antenna radiator 210 through the second matching circuit 420. Specifically, a feed point is disposed on the first antenna radiator 210, the adjusting module 400 further includes a first switch 430 and a second switch 440, one end of the first switch 430 is electrically connected to the first rf signal source 230, and the other end of the first switch 430 is electrically connected to the feed point of the first antenna radiator 210 through the first matching circuit 410; one end of the second switch 440 is electrically connected to the rf signal source 230, and the other end of the second switch 440 is electrically connected to the second matching circuit 420 to the power feed of the first antenna radiator 210. When the first antenna radiator 210 is in a first position compared to the device body 100, the controller 300 controls the first switch 430 to be closed, and at this time, the excitation signal is applied to the first antenna radiator 210 through the first matching circuit 410. When the first antenna radiator 210 is in a second position compared to the device body 100, the controller 300 controls the first switch 430 to be open and the second switch 440 to be closed. Since the first switch 430 is turned off, the electrical connection between the first matching circuit 410 and the rf signal source 230 and the first antenna radiator 210 is cut off; as the second switch 440 is closed, the excitation signal is applied to the first antenna radiator 210 via the second matching circuit 420. It can be seen that the controller 300 can control whether the first antenna radiator 210 is loaded on the first antenna radiator 210 through the first matching circuit 410 or the second matching circuit 420 by controlling the first switch 430 and the second switch 440.
Further, the first matching circuit 410 includes a first coupling capacitor 411, and when the first matching circuit 410 is electrically connected to the first rf signal source 230 and the first antenna radiator 210, the first coupling capacitor 411 applies the excitation signal to the first antenna radiator 210 by coupling feeding. The second matching circuit 420 includes a second coupling capacitor 421, and when the second matching circuit 420 is electrically connected to the first rf signal source 230 and the first antenna radiator 210, the second coupling capacitor 421 loads the excitation signal on the first antenna radiator 210 in a coupling feeding manner; wherein the second coupling capacitor 421 is not equal to the first coupling capacitor 411. When the second frequency band is greater than the first frequency band, the second coupling capacitor 421 is smaller than the first coupling capacitor 411; when the second frequency band is smaller than the first frequency band, the second coupling capacitor 421 is larger than the first coupling capacitor 411.
Referring to fig. 1, fig. 2, fig. 3, and fig. 5, fig. 5 is a schematic circuit structure diagram of an electronic device according to a third embodiment of the present disclosure. In this embodiment, the adjusting module 400 includes a third matching circuit 450, and the first antenna module 200 further includes a first rf signal source 230, wherein the first rf signal source 230 is configured to generate an excitation signal, and the excitation signal is loaded on the first antenna radiator 210 through the third matching circuit 450. When the first antenna radiator 210 is located at a first position relative to the device body 100, the adjusting module 400 sets the capacitance of the third matching circuit 450 to a first capacitance under the control of the first control signal, and when the first antenna radiator 210 is located at a second position relative to the device body 100, the adjusting module 400 sets the capacitance of the third matching circuit 450 to a second capacitance under the control of the first control signal, so that the equivalent electrical length of the first antenna radiator 210 is matched with the electrical length required for radiating the electromagnetic wave signal of the first frequency band.
Referring to fig. 1, fig. 2, fig. 3, and fig. 6, fig. 6 is a schematic circuit structure diagram of an electronic device according to a fourth embodiment of the present disclosure. In this embodiment, the electronic device 10 further includes a first rf signal source 230, the adjusting module 400 includes a conductive sheet 460, the first rf signal source 230 is used for generating an excitation signal, and the first rf signal source 230 is electrically connected to one end of the first antenna radiator 210 to apply the excitation signal to the first antenna radiator 210. The other end of the first antenna radiator 210 is spaced from the conductive sheet 460 to form a coupling capacitor, and the conductive sheet 460 is grounded. When the first antenna radiator 210 is at a first position compared to the device body 100, the first antenna module 200 operates at a first frequency band; when the first antenna radiator 210 is located at a second position relative to the device body 100, the first antenna module 200 operates at a second frequency band. When the second frequency band is greater than the first frequency band, the conductive sheet 460 is coupled to the first antenna radiator 210; when the second frequency band is smaller than the first frequency band, the conductive sheet 460 is decoupled from the first antenna radiator 210. The present embodiment adjusts the frequency band in which the first antenna radiator 210 operates by changing the electrical length of the first antenna radiator 210.
Referring to fig. 1, fig. 2, fig. 3, and fig. 7, fig. 7 is a schematic circuit structure diagram of an electronic device according to a fifth embodiment of the present disclosure. In this embodiment, the first antenna module 200 further includes a first rf signal source 230, the adjusting module 400 further includes a third coupling capacitor 470, the first rf signal source 230 is configured to generate an excitation signal, the rf signal source 230 is electrically connected to one end of the first antenna radiator 210 to load the excitation signal on the first antenna radiator 210, when the second frequency band is greater than the first frequency band, one end of the third coupling capacitor 470 is electrically connected to the other end of the first antenna radiator 210, and the other end of the third coupling capacitor 470 is grounded.
Referring to fig. 3 again, the electronic device 10 further includes a sensor 500, and the sensor 500 is used for sensing a position change of the first antenna radiator 210 compared to the device body 100. In one embodiment, the sensor 500 includes a position sensor 510, the position sensor 510 is fixedly disposed on the device body 100, and the position sensor 510 is used for sensing the position change of the first antenna radiator 210 compared to the device body 100.
In another embodiment, the sensor 500 includes a signal detector 520, the electronic device 10 further includes a processor 600, the first antenna module 200 further includes a first rf signal source 230, the first rf signal source 230 is configured to generate an excitation signal, the signal detector 520 is electrically connected between the first rf signal source 230 and the first antenna radiator 210, and the signal detector 520 is configured to detect a first signal output by the excitation signal to the first antenna radiator 210 and a second signal reflected by the first antenna radiator 210. The processor 600 determines a position change of the first antenna radiator 210 compared to the device body 100 according to a change of a ratio between the second signal and the first signal. The ratio of the second signal reflected by the first antenna radiator 210 to the first antenna loaded on the first antenna radiator 210 can reflect the change in position of the first antenna radiator 210 compared to the device body 100. The first antenna radiator 210 operates at a resonant frequency and the ratio of the second signal to the first signal is minimized. Wherein the first signal and the second signal are both electrical signals. In the present embodiment, the detection method is a closed loop detection method, and the operating frequency of the first antenna radiator 210 can be determined more accurately by detecting the electrical signal (first signal) output from the first rf signal source 230 to the first antenna radiator 210 and the electrical signal (second signal) reflected by the first antenna radiator 210 compared to determining the operating frequency of the first antenna radiator 210 by detecting the electromagnetic wave signal.
Referring to fig. 1, fig. 2 and fig. 3 again, the electronic device 10 further includes a second antenna module 700, the second antenna module 700 is fixedly disposed in the device body 100, when the first antenna radiator 210 is located at a first position relative to the device body 100, a working frequency band of the second antenna module 700 is a third frequency band, when the first antenna radiator 210 is located at a second position relative to the device body 100, the working frequency band of the second antenna module 700 is a fourth frequency band, the controller 300 is further configured to generate a second control signal, the adjusting module 400 receives the second control signal, and adjusts the working frequency band of the second antenna module 700 from the fourth frequency band to the third frequency band under the control of the second control signal, wherein the fourth frequency band is not equal to the third frequency band.
While one specific form of the first antenna radiator 210 movably connected to the device body 100 is described below, it should be understood that the form of the first antenna radiator 210 movably connected to the device body 100 includes, but is not limited to, the following forms.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device according to a second embodiment of the present application. In an embodiment, the first antenna module 200 includes a sliding seat 220, and the first antenna radiator 210 is disposed on the sliding seat 220. The device body 100 includes a display module 110 and a housing 120 covering the display module 110, the display module 110 includes a side 111, and the housing 120 includes a back plate 121 and a frame 122 connecting the back plate 121 and the side 111 of the display module 110. The housing 120 is a battery cover of the electronic device 10, the housing 120 includes a groove 120a, the groove 120a is disposed on the back plate 121, the groove 120a extends to the frame 122, and the groove 120a is used for accommodating the sliding seat 220. The side 111 of the groove 120a is provided with a slide rail, the sliding seat 220 is provided with a pulley, and the sliding seat 220 slides in the slide rail through the pulley so that the position of the sliding seat 220 is changed compared with the device body 100. Since the first antenna radiator 210 is disposed on the sliding seat 220, the sliding seat 220 slides in the sliding rail via a pulley to drive the position of the first antenna radiator 210 relative to the device body 100 to change. In one embodiment, the first antenna radiator 210 is located at a first position relative to the device body 100, in which the sliding seat 220 is completely accommodated in the groove 120a, and at this time, the first antenna radiator 210 is completely sandwiched between the sliding seat 220 and the inner wall of the groove 120 a. The first antenna radiator 210 is completely or incompletely slid out of the groove 120a by the sliding seat 220 in the second position compared to the device body 100. In another embodiment, the first antenna radiator 210 is completely or incompletely slid out of the groove 120a by the sliding seat 220 when the first antenna radiator is in the first position compared to the device body 100. The first antenna radiator 210 is located at a second position relative to the device body 100, in which the sliding seat 220 is completely accommodated in the groove 120a, and at this time, the first antenna radiator 210 is completely clamped between the sliding seat 220 and the inner wall of the groove 120 a. It is understood that in other embodiments, the first antenna radiator 210 is in the first position relative to the device body 100 and the first antenna radiator 210 is in the second position relative to the device body 100, the sliding seat 220 is completely received in the groove 120a, the sliding seat 220 completely slides out of the groove 120a, and the sliding seat 220 is in any position where the sliding seat 220 does not completely slide out between the sliding seat 220 being completely received in the groove 120a and the sliding seat 220 completely sliding out of the groove 120 a. It is to be understood that, in other embodiments, the structure of the electronic device 10 is not limited to the above structure, as long as the first antenna radiator 210 can be movably connected to the device body 100.
Referring to fig. 1, fig. 2 and fig. 3 again, the present application further provides an electronic device 10, where the electronic device 10 includes a device body 100, a first antenna module 210, a sensor 500, a controller 300 and an adjustment module 400. The first antenna module 200 includes a first antenna radiator 210, and the first antenna radiator 210 is movably connected to the device body 100. The sensor 500 senses a position change of the first antenna radiator 210 with respect to the device body 100 and obtains a sensing signal according to the position change of the first antenna radiator 210 with respect to the device body 100, and the controller 300 sends a control signal according to the sensing signal. The adjusting module 400 is configured to receive the control signal and control the working frequency band of the first antenna module 200 to remain unchanged under the control of the control signal.
The foregoing is an implementation of the embodiments of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the embodiments of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.
Claims (18)
1. An electronic device is characterized in that the electronic device comprises a device body, a first antenna module, a controller and an adjusting module, wherein the first antenna module comprises a first antenna radiator, the first antenna radiator is movably connected to the device body, and when the first antenna radiator is located at a first position relative to the device body, the first antenna module works at a first frequency band; when the first antenna radiator is located at a second position relative to the device body, the first antenna module operates at a second frequency band, the controller generates a first control signal, the adjusting module receives the first control signal and adjusts the operating frequency band of the first antenna module from the second frequency band to the first frequency band under the control of the first control signal, wherein the first position is different from the second position, the first frequency band is different from the second frequency band, the electronic device further comprises a signal detector and a processor, the first antenna module further comprises a first radio frequency signal source, the first radio frequency signal source is used for generating an excitation signal, the signal detector is electrically connected between the first radio frequency signal source and the first antenna radiator, and the signal detector is used for detecting a first signal output by the excitation signal to the first antenna radiator and detecting a first signal output by the first antenna radiator And the processor judges the position change of the first antenna radiator compared with the device body according to the change of the ratio between the second signal and the first signal.
2. The electronic device according to claim 1, wherein the first antenna module further includes a first rf signal source for generating an excitation signal, the adjusting module includes a first matching circuit and a second matching circuit, when the first antenna radiator is located at a first position relative to the device body, the controller controls the first matching circuit to electrically connect the first rf signal source and the first antenna radiator, and the excitation signal is applied to the first antenna radiator through the first matching circuit; when the first antenna radiator is located at a second position relative to the device body, the controller cuts off the electrical connection between the first matching circuit and the first rf signal source and the first antenna radiator, and controls the second matching circuit to electrically connect the first rf signal source and the first antenna radiator, and the excitation signal is loaded on the first antenna radiator through the second matching circuit.
3. The electronic device according to claim 2, wherein the first matching circuit includes a first coupling capacitor, and when the first matching circuit electrically connects the first rf signal source and the first antenna radiator, the first coupling capacitor applies the excitation signal to the first antenna radiator by means of coupling feeding; the second matching circuit comprises a second coupling capacitor, and when the second matching circuit is electrically connected with the first radio frequency signal source and the first antenna radiator, the second coupling capacitor loads the excitation signal on the first antenna radiator in a coupling feed mode; wherein the second coupling capacitance is not equal to the first coupling capacitance.
4. The electronic device of claim 3, wherein the second coupling capacitance is smaller than the first coupling capacitance when the second frequency band is larger than the first frequency band; when the second frequency band is smaller than the first frequency band, the second coupling capacitor is larger than the first coupling capacitor.
5. The electronic device of claim 1, wherein the adjustment module comprises a third matching circuit, the first antenna module further comprises a first radio frequency signal source for generating an excitation signal, the excitation signal is loaded on the first antenna radiator via the third matching circuit, when the first antenna radiator is located at a first position relative to the device body, the adjusting module sets the capacitance of the third matching circuit to a first capacitance under the control of the first control signal, when the first antenna radiator is located at a second position relative to the device body, the adjusting module sets the capacitance of the third matching circuit to a second capacitance under the control of the first control signal, so that the equivalent electrical length of the first antenna radiator matches the electrical length required for radiating the electromagnetic wave signal of the first frequency band.
6. The electronic device according to claim 1, wherein the electronic device further comprises a first rf signal source, the adjusting module comprises a conductive sheet, the first rf signal source is configured to generate an excitation signal, the first rf signal source is electrically connected to one end of the first antenna radiator to apply the excitation signal to the first antenna radiator, the other end of the first antenna radiator and the conductive sheet are spaced apart from each other to form a coupling capacitor, and the conductive sheet is grounded; when the second frequency band is larger than the first frequency band, the conducting sheet is coupled with the first antenna radiator; when the second frequency band is smaller than the first frequency band, the conducting sheet is disconnected from the first antenna radiator.
7. The electronic device according to claim 1, wherein the first antenna module further includes a first rf signal source, the adjusting module further includes a third coupling capacitor, the first rf signal source is configured to generate an excitation signal, the rf signal source is electrically connected to one end of the first antenna radiator to load the excitation signal on the first antenna radiator, when the second frequency band is greater than the first frequency band, one end of the third coupling capacitor is electrically connected to the other end of the first antenna radiator, and the other end of the third coupling capacitor is grounded.
8. The electronic device of claim 1, wherein the electronic device comprises a position sensor fixedly disposed on the device body, the position sensor being configured to sense a change in position of the first antenna radiator relative to the device body.
9. An electronic device is characterized in that the electronic device comprises a device body, a first antenna module, a controller and an adjusting module, wherein the first antenna module comprises a first antenna radiator, the first antenna radiator is movably connected to the device body, and when the first antenna radiator is located at a first position relative to the device body, the first antenna module works at a first frequency band; when the first antenna radiator is located at a second position relative to the device body, the first antenna module operates at a second frequency band, the controller generates a first control signal, the adjusting module receives the first control signal and adjusts the operating frequency band of the first antenna module from the second frequency band to the first frequency band under the control of the first control signal, wherein the first position is different from the second position, the first frequency band is different from the second frequency band, the electronic device further comprises a second antenna module, the second antenna module is fixedly arranged in the device body, when the first antenna radiator is located at the first position relative to the device body, the operating frequency band of the second antenna module is a third frequency band, when the first antenna radiator is located at the second position relative to the device body, the working frequency band of the second antenna module is a fourth frequency band, the controller is further used for generating a second control signal, the adjusting module receives the second control signal, and the working frequency band of the second antenna module is adjusted to the third frequency band by the fourth frequency band under the control of the second control signal, wherein the fourth frequency band is not equal to the third frequency band.
10. An electronic device, comprising a device body, a first antenna module, a sensor, a controller, and an adjustment module, wherein the first antenna module comprises a first antenna radiator movably connected to the device body, the sensor senses a change in a position of the first antenna radiator relative to the device body and obtains a sensing signal according to the change in the position of the first antenna radiator relative to the device body, the controller sends a control signal according to the sensing signal, the adjustment module is configured to receive the control signal and control a frequency band of operation of the first antenna module to remain unchanged under control of the control signal, the sensor comprises a signal detector, the electronic device further comprises a processor, and the first antenna module further comprises a first radio frequency signal source, the first radio frequency signal source is used for generating an excitation signal, the signal detector is electrically connected between the first radio frequency signal source and the first antenna radiator, the signal detector is used for detecting a first signal output by the excitation signal to the first antenna radiator and detecting a second signal reflected by the first antenna radiator, and the processor judges the position change of the first antenna radiator compared with the device body according to the change of the ratio between the second signal and the first signal.
11. The electronic device of claim 10, wherein the first antenna module further comprises a first rf signal source for generating an excitation signal, the adjusting module comprises a plurality of matching circuits, and the controller selects the corresponding matching circuit to electrically connect the first rf signal source and the first radiator according to a change of the sensing signal.
12. The electronic device according to claim 11, wherein the matching circuit includes a first matching circuit and a second matching circuit, the first matching circuit includes a first coupling capacitor, and when the first matching circuit electrically connects the first rf signal source and the first antenna radiator, the first coupling capacitor applies the excitation signal to the first antenna radiator by means of coupling feeding; the second matching circuit comprises a second coupling capacitor, and when the second matching circuit is electrically connected with the first radio frequency signal source and the first antenna radiator, the second coupling capacitor loads the excitation signal on the first antenna radiator in a coupling feed mode; wherein the second coupling capacitance is not equal to the first coupling capacitance.
13. The electronic device of claim 12, wherein when the adjustment module is not operating: when the first antenna radiator is located at a first position relative to the device body, the first antenna module operates at a first frequency band; when the adjusting module does not work: when the first antenna radiator is located at a second position relative to the device body, the first antenna module operates at a second frequency band; when the second frequency band is larger than the first frequency band, the second coupling capacitor is smaller than the first coupling capacitor; when the second frequency band is smaller than the first frequency band, the second coupling capacitor is larger than the first coupling capacitor.
14. The electronic device of claim 10, wherein the adjustment module comprises a third matching circuit, the first antenna module further comprises a first radio frequency signal source for generating an excitation signal, the excitation signal is loaded on the first antenna radiator via the third matching circuit, when the first antenna radiator is at a first position relative to the device body, the adjusting module sets the capacitance of the third matching circuit to a first capacitance under the control of the control signal, when the first antenna radiator is located at a second position relative to the device body, the adjusting module sets the capacitance of the third matching circuit to a second capacitance under the control of the control signal, so that the equivalent electrical length of the first antenna radiator matches the electrical length required for radiating the electromagnetic wave signal of the first frequency band.
15. The electronic device of claim 10, wherein when the adjustment module is not operating: when the first antenna radiator is located at a first position relative to the device body, the first antenna module operates at a first frequency band; when the adjusting module does not work: when the first antenna radiator is located at a second position relative to the device body, the first antenna module operates at a second frequency band; the electronic device further comprises a first radio frequency signal source, the adjusting module comprises a conductive sheet, the first radio frequency signal source is used for generating an excitation signal, the first radio frequency signal source is electrically connected with one end of the first antenna radiating body so as to load the excitation signal on the first antenna radiating body, the other end of the first antenna radiating body and the conductive sheet are arranged at intervals to form a coupling capacitor, and the conductive sheet is grounded; when the second frequency band is larger than the first frequency band, the conducting sheet is coupled with the first antenna radiator; when the second frequency band is smaller than the first frequency band, the conducting sheet is disconnected from the first antenna radiator.
16. The electronic device of claim 10, wherein when the adjustment module is not operating: when the first antenna radiator is located at a first position relative to the device body, the first antenna module operates at a first frequency band; when the adjusting module does not work: when the first antenna radiator is located at a second position relative to the device body, the first antenna module operates at a second frequency band; the first antenna module further comprises a first radio frequency signal source, the adjusting module further comprises a third coupling capacitor, the first radio frequency signal source is used for generating an excitation signal, the radio frequency signal source is electrically connected with one end of the first antenna radiator so as to load the excitation signal on the first antenna radiator, when the second frequency band is larger than the first frequency band, one end of the third coupling capacitor is electrically connected with the other end of the first antenna radiator, and the other end of the third coupling capacitor is grounded.
17. The electronic device of claim 10, wherein the sensor comprises a position sensor fixedly disposed on the device body, the position sensor being configured to sense a change in position of the first antenna radiator relative to the device body.
18. An electronic device, comprising a device body, a first antenna module, a sensor, a controller, and an adjustment module, wherein the first antenna module comprises a first antenna radiator movably connected to the device body, the sensor senses a change in a position of the first antenna radiator relative to the device body and obtains a sensing signal according to the change in the position of the first antenna radiator relative to the device body, the controller sends a control signal according to the sensing signal, the adjustment module is configured to receive the control signal and control a frequency band of operation of the first antenna module to remain unchanged under control of the control signal, the electronic device further comprises a second antenna module fixedly disposed in the device body, and when the first antenna radiator is at a first position relative to the device body, the frequency band of second antenna module work is the third frequency band, when first antenna radiator compare in when the device body is in the second position, the frequency band of second antenna module work is the fourth frequency band, the controller still is used for producing the second control signal, the adjustment module is received the second control signal to with under the control of second control signal the working frequency band of second antenna module by the fourth frequency band is adjusted to the third frequency band, wherein, the fourth frequency band does not equal to the third frequency band.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810285748.9A CN110323548B (en) | 2018-03-31 | 2018-03-31 | Electronic device |
| PCT/CN2019/078525 WO2019184748A1 (en) | 2018-03-31 | 2019-03-18 | Electronic device |
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| CN201810285748.9A CN110323548B (en) | 2018-03-31 | 2018-03-31 | Electronic device |
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| CN110323548B true CN110323548B (en) | 2020-12-22 |
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| CN111010470B (en) * | 2019-12-10 | 2021-09-03 | 惠州Tcl移动通信有限公司 | Antenna tuning method, device and storage medium |
| CN114337715B (en) * | 2020-09-30 | 2024-10-01 | 南京矽力微电子(香港)有限公司 | Multi-section type co-radiator antenna and wearable device using same |
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| CN110323548A (en) | 2019-10-11 |
| WO2019184748A1 (en) | 2019-10-03 |
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