CN106329080A - Antenna and manufacturing method thereof and terminal - Google Patents
Antenna and manufacturing method thereof and terminal Download PDFInfo
- Publication number
- CN106329080A CN106329080A CN201610958182.2A CN201610958182A CN106329080A CN 106329080 A CN106329080 A CN 106329080A CN 201610958182 A CN201610958182 A CN 201610958182A CN 106329080 A CN106329080 A CN 106329080A
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- Prior art keywords
- metal strip
- antenna
- strip structure
- frequency
- pass filter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention relates to an antenna and a manufacturing method thereof and a terminal, and belongs to the technical field of antennae. The antenna comprises a metal strip-shaped structure and a first connecting piece and a second connecting piece which are arranged on the metal strip-shaped structure, the first connecting piece is used for being connected with a signal feedback point, and the second connecting piece is used for being connected with a grounding point; the metal strip-shaped structure is provided with a low-pass filter which is located at the end, far away from the first connecting piece, of the metal strip-shaped structure, and the position of the low-pass filter on the metal strip-shaped structure meets the condition that the maximum frequency of low-frequency resonance generated by a target metal segment is equal to the cut-off frequency of the low-pass filter. According to the antenna and the manufacturing method thereof and the terminal, the problem that due to the fact that an active device generates high loss, the overall radiation performance of the antenna is reduced is solved, the loss is reduced while the low-frequency resonance performance is improved, and the overall radiation performance of the antenna is improved. The method is applied to antenna manufacturing.
Description
Technical field
It relates to antenna technical field, particularly to a kind of antenna and manufacture method, terminal.
Background technology
Antenna is the device in terminal for receiving and transmitting signal, during antenna in design terminal, needs to avoid terminal inner
Electronic component, to avoid the signal of antenna is interfered, the antenna in terminal typically use plane inverse-F (English:
Planar Inverted F-shaped Antenna；It is called for short: PIFA) antenna, inverted f (English: Inverted F-shaped
Antenna；It is called for short: IFA) antenna or ring-type (English: Loop) antenna etc..
In correlation technique, the problem narrower in order to solve the low-frequency resonant frequency range of antenna in terminal, it will usually at antenna
Tunable active device (such as resistance, inductance or electric capacity etc.) is set between radiating element and earth point, active by regulation
The property parameters of device (such as regulates the resistance size of resistance, the inductance value size of regulation inductance or the electric capacity of regulation electric capacity
Value size), change the size of current of inner antenna, thus reach to regulate the purpose of the resonance band of antenna.
But, when carrying out externally fed, the active device that electric current is arranged through inner antenna, active device can produce relatively
Big loss (such as ohmic loss), causes the integral radiation performance of antenna to reduce.
Summary of the invention
Bigger loss can be produced in order to solve active device, cause the problem that the integral radiation performance of antenna reduces, this
Open embodiment provides a kind of antenna and manufacture method, terminal.Described technical scheme is as follows:
First aspect, present disclose provides a kind of antenna, and described antenna includes:
Metal strip structure, is arranged on a connecting piece on described metal strip structure and second and connects sheet, and described the
A connecting piece is used for connecting signal feed, and described second connects sheet is used for connecting earth point；
Being provided with low pass filter on described metal strip structure, described low pass filter is positioned at described metal strip structure
On away from one end of described a connecting piece, and the position that described low pass filter is on described metal strip structure meets: mesh
The peak frequency of the low-frequency resonant that mark metal segments produces is equal with the cut-off frequency of described low pass filter；
Wherein, described metal strip structure is divided into two sections by described low pass filter, and described metal target section is described two
Near one section of described a connecting piece in Duan.
Optionally, length L of described metal target section meets:
Wherein, described v is electromagnetic wave velocity of wave when propagating in a vacuum, and described f is cut-off frequency, describedFor described sky
The type of line.
Optionally, v=3 × 108Metre per second (m/s), described antenna isThe antenna of wavelength.
Optionally, described antenna also includes:
Circuit board, described circuit board is provided with signal feed and earth point；
Described metal strip structure is connected by described a connecting piece with described signal feed, described metal strip structure
It is connected sheet with described earth point by described second to connect.
Optionally, the cut-off frequency f of described low pass filter meets: 800≤f ＜ 960, and the unit of described f is megahertz；
Frequency range m of the low-frequency resonant that described metal strip structure produces meets: 700≤m≤960, the unit of described m is million
Hertz.
Optionally, described a connecting piece and described second connects sheet and is respectively positioned on the side, component side place of described circuit board,
And there is gap with the component side of described circuit board.
Second aspect, present disclose provides a kind of terminal, and described terminal includes: the arbitrary described antenna of first aspect.
Optionally, described terminal also includes: be enclosed in the metal edge frame of described terminal surrounding；
On described metal edge frame length shorter while being provided with two breaking joints, said two breaking joint is by described metal edge frame
Being divided into underframe and side frame, described underframe is described metal strip structure.
The third aspect, present disclose provides the manufacture method of a kind of antenna, and described method includes:
One metal strip structure is provided, is arranged on a connecting piece on described metal strip structure and second and connects sheet,
Described a connecting piece is used for connecting signal feed, and described second connects sheet is used for connecting earth point；
Described metal strip structure arranges low pass filter, makes described low pass filter be positioned at described metal bar shaped knot
Away from one end of described a connecting piece on structure, and the position that described low pass filter is on described metal strip structure meets:
The peak frequency of the low-frequency resonant that metal target section produces is equal with the cut-off frequency of described low pass filter；
Wherein, described metal strip structure is divided into two sections by described low pass filter, and described metal target section is described two
Near one section of described a connecting piece in Duan.
Optionally, described low pass filter is set on described metal strip structure, including:
Obtain the cut-off frequency of described low pass filter；
Determine described low pass filter position on described metal strip structure according to described cut-off frequency, make described mesh
Length L of mark metal segments meets:
Wherein, described v is electromagnetic wave velocity of wave when propagating in a vacuum, and described f is cut-off frequency, describedFor described sky
The type of line.
Optionally, v=3 × 108Metre per second (m/s), described antenna isThe antenna of wavelength.
Optionally, described method also includes:
One circuit board is provided, described circuit board is provided with signal feed and earth point；
By described a connecting piece, described metal strip structure is connected with described signal feed, by described second even
Described metal strip structure is connected by contact pin with described earth point.
Optionally, the cut-off frequency f of described low pass filter meets: 800≤f ＜ 960, and the unit of described f is megahertz；
Frequency range m of the low-frequency resonant that described metal strip structure produces meets: 700≤m≤960, the unit of described m is million
Hertz.
Optionally, described a connecting piece and described second connects sheet and is respectively positioned on the side, component side place of described circuit board,
And there is gap with the component side of described circuit board.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect:
The antenna of disclosure embodiment offer and manufacture method, terminal, by arranging low pass on metal strip structure
Wave filter utilizes passive low ventilating filter to substitute the active device being arranged on inner antenna, is improving the same of low-frequency resonant performance
Time, reduce loss, improve the integral radiation performance of antenna.
It should be appreciated that it is only exemplary that above general description and details hereinafter describe, can not be limited this
Open.
Accompanying drawing explanation
Embodiment of the disclosure to be illustrated more clearly that, in describing embodiment below, the required accompanying drawing used is made
Introduce simply, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the disclosure, common for this area
From the point of view of technical staff, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation according to a kind of antenna shown in an exemplary embodiment.
Fig. 2 is the structural representation according to a kind of antenna shown in an exemplary embodiment.
Fig. 3 is the structural representation according to a kind of terminal shown in an exemplary embodiment.
Fig. 4 is the flow chart of the manufacture method according to a kind of antenna shown in an exemplary embodiment.
Fig. 5-1 is the flow chart of the manufacture method according to a kind of antenna shown in an exemplary embodiment.
Fig. 5-2 is according to the method arranging low pass filter on a kind of metal strip structure shown in an exemplary embodiment
Flow chart.
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the enforcement of the disclosure
Example, and for explaining the principle of the disclosure together with description.
Detailed description of the invention
In order to make the purpose of the disclosure, technical scheme and advantage clearer, below in conjunction with accompanying drawing the disclosure made into
One step ground describes in detail, it is clear that described embodiment is only disclosure some embodiments rather than whole enforcement
Example.Based on the embodiment in the disclosure, those of ordinary skill in the art are obtained under not making creative work premise
All other embodiments, broadly fall into the scope of disclosure protection.
Fig. 1 is the structural representation according to a kind of antenna shown in an exemplary embodiment, as it is shown in figure 1, this antenna bag
Include:
Metal strip structure 10, a connecting piece 201 and second being arranged on this metal strip structure 10 connects sheet
202, this connecting piece 201 is used for connecting signal feed 30, and this second connection sheet 202 is used for connecting earth point 40.
Being provided with low pass filter 50 on this metal strip structure 10, this low pass filter 50 is positioned at this metal strip structure
Away from one end of a connecting piece 201 on 10, and this low pass filter 50 position on metal strip structure 10 meets: target
The peak frequency of the low-frequency resonant that metal segments 101 produces is equal with the cut-off frequency of this low pass filter 50.
Wherein, metal strip structure 10 is divided into two sections by this low pass filter 50, and this metal target section 101 is to lean in two sections
One section of nearly a connecting piece 201.
In sum, the antenna that disclosure embodiment provides, by arranging low pass filter on metal strip structure, profit
Substitute the active device being arranged on inner antenna with passive low ventilating filter, while improving low-frequency resonant performance, reduce
Loss, improves the integral radiation performance of antenna.
It should be noted that the antenna that antenna is linear structure that disclosure embodiment provides, such as inverted F shaped antenna or list
Pole sub antenna etc..
Optionally, length L of metal target section 101 as shown in Figure 1 meets:
Wherein, v is electromagnetic wave velocity of wave when propagating in a vacuum, that is to say, v=3 × 108(rice is every for m/s
Second): f is the cut-off frequency of low pass filter；The type of representative antennas, optionally, takes n=4, then antenna isThe sky of wavelength
Line.
Fig. 2 is the structural representation according to a kind of antenna shown in an exemplary embodiment, as in figure 2 it is shown, this antenna is also
Including: circuit board 60, this circuit board 60 is provided with signal feed 30 and earth point 40.
Metal strip structure 10 is connected by a connecting piece 201 with signal feed 30, metal strip structure 10 and ground connection
Point 40 is connected by the second connection sheet 202.
It should be noted that a connecting piece 201 and the second connection sheet 202 are positioned at the same side of metal strip structure 10,
And all arrange in same one end of metal strip structure 10, that is to say that signal feed 30 and earth point 40 are positioned at metal strip structure 10
The same side and be arranged on same one end of metal strip structure 10.In the disclosed embodiments, signal feed both may be located at and connect
The side in place, it is also possible to be positioned at the opposite side of earth point, the disclosure embodiment relative position to signal feed with earth point
Do not limit.
Optionally, the cut-off frequency f of low pass filter meets: the unit of 800≤f ＜ 960, f is MHz (megahertz)；
Optionally, frequency range m of the low-frequency resonant that metal strip structure produces meets: 700≤m≤960, the unit of m is
MHz。
In actual applications, the antenna that disclosure embodiment provides can realize the covering of the frequency range of two kinds of low-frequency resonants,
Including:
The realization of the frequency range of the first low-frequency resonant: when the signal frequency received is not more than the cutoff frequency of low pass filter
During rate, the effective length of metal strip structure is the second junction point to the length of the end of metal strip structure, now can be real
In the frequency range of existing low-frequency resonant, 700MHz is to the frequency range of cut-off frequency.It should be noted that the second junction point is the second connection sheet
Junction point with metal strip structure；The end of metal strip structure is in metal strip structure away from the second junction point
End.
The realization of the frequency range of the second low-frequency resonant: when the signal frequency received is more than the cut-off frequency of low pass filter
Time, the effective length of metal strip structure be the second junction point to the length of low pass filter, now can realize low-frequency resonant
Frequency range in cut-off frequency to the frequency range of 960MHz.
It should be noted that the metal strip structure that the effective length of metal strip structure is actual generation low-frequency resonant
Length.Therefore, the antenna that disclosure embodiment provides utilizes the characteristic of low pass filter, effective broadening low-frequency resonant of antenna
Frequency range, improve the performance of low-frequency resonant.
Optionally, according to formulaCan calculate:
Work as n=4, that is to say selectionDuring the antenna of wavelength, the distance of the second junction point to the end of metal strip structure is
10.71 centimetres, that is to say that the length of metal strip structure is more than or equal to 10.71 centimetres.
Optionally, as in figure 2 it is shown, a connecting piece 201 and the second connection sheet 202 are respectively positioned on the component side institute of circuit board 60
In side, and there is gap with the component side of circuit board 60.
In sum, the antenna that disclosure embodiment provides, by arranging low pass filter on metal strip structure, when
When the signal frequency received is not more than the cut-off frequency of low pass filter, it is possible to achieve in the frequency range of low-frequency resonant, 700MHz is extremely
The frequency range of cut-off frequency；When the signal frequency received is more than the cut-off frequency of low pass filter, it is possible to achieve low-frequency resonant
Frequency range in cut-off frequency to the frequency range of 960MHz, utilize passive low ventilating filter to substitute the active device being arranged on inner antenna
Part, while improving low-frequency resonant performance, reduces loss, improves the integral radiation performance of antenna.
Fig. 3 is the structural representation according to a kind of terminal shown in an exemplary embodiment, as it is shown on figure 3, this terminal bag
Including: antenna, this antenna can be for the antenna shown in Fig. 1 or Fig. 2.
As it is shown on figure 3, this terminal also includes: be enclosed in the metal edge frame 00 of terminal surrounding.
Wherein, what on metal edge frame 00, length was shorter is provided with two breaking joints, these two breaking joints be respectively breaking joint A and
Breaking joint B, metal edge frame 00 is divided into underframe 001 and side frame 002 by two breaking joints, and in actual applications, this underframe 001 can be
Metal strip structure 10 shown in Fig. 1 or Fig. 2.
Optionally, this terminal can be smart mobile phone, computer, multimedia player, electronic reader, Wearable device
Deng.
Terminal can include following one or more assembly: processes assembly, memorizer, power supply module, multimedia groupware, sound
Frequently assembly, the interface of input/output (I/O), sensor cluster, and communications component.
Process assembly and generally control the integrated operation of terminal, such as with display, call, data communication, camera operation
The operation being associated with record operation.Process assembly and can include that one or more processor performs instruction, above-mentioned to complete
All or part of step of method.Additionally, process assembly can include one or more module, it is simple to process assembly and other
Mutual between assembly.Such as, process assembly and can include multi-media module, to facilitate multimedia groupware and to process between assembly
Mutual.
Memorizer is configured to store various types of data to support the operation in terminal.The example of these data includes
For in terminal operation any application program or the instruction of method, contact data, telephone book data, message, picture, depending on
Frequency etc..Memorizer can be realized, such as static state by any kind of volatibility or non-volatile memory device or combinations thereof
Random access memory (SRAM), Electrically Erasable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory EPROM
(EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, disk or light
Dish.
The various assemblies that power supply module is terminal provide electric power.Power supply module can include power-supply management system, one or
Multiple power supplys, and other with for terminal generate, manage and distribute the assembly that electric power is associated.
The screen of one output interface of offer that multimedia groupware is included between described terminal and user.Implement at some
In example, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen is permissible
It is implemented as touch screen, to receive the input signal from user.Touch panel includes that one or more touch sensor is with sense
Survey the gesture on touch, slip and touch panel.Described touch sensor can not only sense touch or the border of sliding action,
But also detect the persistent period relevant to described touch or slide and pressure.In certain embodiments, multimedia groupware
Including a front-facing camera and/or post-positioned pick-up head.When terminal is in operator scheme, during such as screening-mode or video mode,
Front-facing camera and/or post-positioned pick-up head can receive the multi-medium data of outside.Each front-facing camera and post-positioned pick-up head
Can be a fixing optical lens system or there is focal length and optical zoom ability.
Audio-frequency assembly is configured to output and/or input audio signal.Such as, audio-frequency assembly includes a mike
(MIC), when terminal is in operator scheme, during such as call model, logging mode and speech recognition mode, mike is configured to connect
Receive external audio signal.The audio signal received can be further stored at memorizer or send via communications component.?
In some embodiments, audio-frequency assembly also includes a speaker, is used for exporting audio signal.
I/O interface provides interface for processing between assembly and peripheral interface module, above-mentioned peripheral interface module can be key
Dish, puts striking wheel, button etc..These buttons may include but be not limited to: home button, volume button, start button and locking press button.
Sensor cluster includes one or more sensor, for providing the state estimation of various aspects for terminal.Such as,
What sensor cluster can detect terminal opens/closed mode, the relative localization of assembly, and the most described assembly is the aobvious of terminal
Showing device and keypad, sensor cluster can also detect terminal or the position change of one assembly of terminal, and user contacts with terminal
Presence or absence, terminal orientation or acceleration/deceleration and the variations in temperature of terminal.Sensor cluster can include close to sensing
Device, is configured to when not having any physical contact object near detecting.Sensor cluster can also include light
Sensor, such as CMOS or ccd image sensor, is used for using in imaging applications.In certain embodiments, this sensor cluster
Acceleration transducer, gyro sensor, Magnetic Sensor, pressure transducer or temperature sensor can also be included.
Communications component is configured to facilitate the communication of wired or wireless mode between terminal and other equipment.Terminal can connect
Enter wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.In one exemplary embodiment, communication
Assembly receives the broadcast singal from external broadcasting management system or broadcast related information via broadcast channel.Exemplary at one
In embodiment, described communications component also includes near-field communication (NFC) module, to promote junction service.Such as, can in NFC module
Based on RF identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra broadband (UWB) technology, bluetooth (BT) technology and
Other technologies realize.
In sum, the terminal that disclosure embodiment provides, by arranging low pass filter on underframe, utilize passive low
Bandpass filter substitutes the active device being arranged on inner antenna, while improving low-frequency resonant performance, reduces loss, improves
The integral radiation performance of antenna.
Fig. 4 is the flow chart of the manufacture method according to a kind of antenna shown in an exemplary embodiment, as shown in Figure 4, and bag
Include:
Step 401, provide a metal strip structure, be arranged on a connecting piece on this metal strip structure and second even
Contact pin, this connecting piece is used for connecting signal feed, and this second connection sheet is used for connecting earth point.
Step 402, low pass filter is set on metal strip structure, makes this low pass filter be positioned at metal strip structure
On away from one end of a connecting piece, and the position that this low pass filter is on metal strip structure meets: metal target section is produced
The peak frequency of raw low-frequency resonant is equal with the cut-off frequency of low pass filter.
Wherein, metal strip structure is divided into two sections by this low pass filter, and this metal target section is near first in two sections
Connect one section of sheet.
In sum, the manufacture method of the antenna that disclosure embodiment provides is low by arranging on metal strip structure
Bandpass filter, utilizes passive low ventilating filter to substitute the active device being arranged on inner antenna, is improving low-frequency resonant performance
Meanwhile, reduce loss, improve the integral radiation performance of antenna.
Fig. 5-1 is the flow chart of the manufacture method according to a kind of antenna shown in an exemplary embodiment, such as Fig. 5-1 institute
Show, including:
Step 501, provide a circuit board, this circuit board is provided with signal feed and earth point.
It should be noted that as in figure 2 it is shown, signal feed 30 and earth point 40 are positioned at the same side of metal strip structure 10
And it is arranged on same one end of metal strip structure 10.In the disclosed embodiments, signal feed both may be located at the one of earth point
Side, it is also possible to be positioned at the opposite side of earth point, signal feed is not limited by disclosure embodiment with the relative position of earth point.
Step 502, provide a metal strip structure, be arranged on a connecting piece on this metal strip structure and second even
Contact pin, this connecting piece is used for connecting signal feed, and this second connection sheet is used for connecting earth point.
It should be noted that as in figure 2 it is shown, a connecting piece 201 and the second connection sheet 202 are positioned at metal strip structure 10
The same side, and all same one end of metal strip structure 10 arrange.
Step 503, by a connecting piece, metal strip structure is connected with signal feed, connects sheet by gold by second
Belong to strip structure to be connected with earth point.
Step 504, low pass filter is set on metal strip structure, makes this low pass filter be positioned at metal strip structure
On away from one end of a connecting piece, and the position that this low pass filter is on metal strip structure meets: metal target section is produced
The peak frequency of raw low-frequency resonant is equal with the cut-off frequency of low pass filter.
Wherein, metal strip structure is divided into two sections by this low pass filter, and this metal target section is near first in two sections
Connect one section of sheet.
Optionally, Fig. 5-2 is the method flow diagram arranging low pass filter on metal strip structure, as shown in Fig. 5-2,
Including:
Step 5041, the cut-off frequency of acquisition low pass filter.
In actual applications, low pass filter can be selected according to practical situation, for example, it is desired to realize 700MHz extremely
During two low frequency frequency ranges of 800MHz and 800MHz to 960MHz, the low-pass filtering that cut-off frequency can be selected to be 800MHz
Device；Time again for example, it is desired to realize two low frequency frequency ranges of 700MHz to 850MHz and 850MHz to 960MHz, can select to cut
Only frequency is the low pass filter of 850MHz.
Step 5042, determine low pass filter position on metal strip structure according to this cut-off frequency.
Low pass filter position on metal strip structure makes length L of metal target section meet:
Wherein, v is electromagnetic wave velocity of wave when propagating in a vacuum, that is to say, v=3 × 108Metre per second (m/s)；f
Cut-off frequency for low pass filter；The type of representative antennas, optionally, takes n=4, then antenna isThe antenna of wavelength.
Optionally, the cut-off frequency f of low pass filter meets: the unit of 800≤f ＜ 960, f is MHz；
Optionally, frequency range m of the low-frequency resonant that metal strip structure produces meets: 700≤m≤960, the unit of m is
MHz。
Optionally, as in figure 2 it is shown, a connecting piece 201 and the second connection sheet 202 are respectively positioned on the component side institute of circuit board 60
In side, and there is gap with the component side of circuit board 60.
In sum, the manufacture method of the antenna that disclosure embodiment provides is low by arranging on metal strip structure
Bandpass filter, when the signal frequency received is not more than the cut-off frequency of low pass filter, it is possible to achieve the frequency of low-frequency resonant
In Duan, 700MHz is to the frequency range of cut-off frequency；When the signal frequency received is more than the cut-off frequency of low pass filter, permissible
Realize cut-off frequency in the frequency range of low-frequency resonant, to the frequency range of 960MHz, to utilize passive low ventilating filter to substitute and be arranged in antenna
The active device in portion, while improving low-frequency resonant performance, reduces loss, improves the integral radiation performance of antenna.
About the method in above-described embodiment, the concrete structure that wherein each step execution operation obtains is somebody's turn to do relevant
The embodiment of device is described in detail, explanation will be not set forth in detail herein.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to its of the disclosure
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modification, purposes or
Person's adaptations is followed the general principle of the disclosure and includes the undocumented common knowledge in the art of the disclosure
Or conventional techniques means.Description and embodiments is considered only as exemplary, and the true scope of the disclosure and spirit are wanted by right
Ask and point out.
It should be appreciated that the disclosure is not limited to precision architecture described above and illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (14)
1. an antenna, it is characterised in that described antenna includes:
Metal strip structure, is arranged on a connecting piece on described metal strip structure and second and connects sheet, and described first even
Contact pin is used for connecting signal feed, and described second connects sheet is used for connecting earth point；
Being provided with low pass filter on described metal strip structure, described low pass filter is positioned on described metal strip structure far
From one end of described a connecting piece, and the position that described low pass filter is on described metal strip structure meets: target gold
The peak frequency belonging to the low-frequency resonant that section produces is equal with the cut-off frequency of described low pass filter；
Wherein, described metal strip structure is divided into two sections by described low pass filter, and described metal target section is in described two sections
Near described a connecting piece one section.
Antenna the most according to claim 1, it is characterised in that length L of described metal target section meets:
Wherein, described v is electromagnetic wave velocity of wave when propagating in a vacuum, and described f is cut-off frequency, describedFor described antenna
Type.
Antenna the most according to claim 2, it is characterised in that
V=3 × 108Metre per second (m/s), described antenna isThe antenna of wavelength.
Antenna the most according to claim 1, it is characterised in that described antenna also includes:
Circuit board, described circuit board is provided with signal feed and earth point；
Described metal strip structure is connected by described a connecting piece with described signal feed, described metal strip structure and institute
State earth point and connect sheet connection by described second.
5. according to the arbitrary described antenna of Claims 1-4, it is characterised in that
The cut-off frequency f of described low pass filter meets: 800≤f ＜ 960, and the unit of described f is megahertz；
Frequency range m of the low-frequency resonant that described metal strip structure produces meets: 700≤m≤960, and the unit of described m is megahertz
Hereby.
Antenna the most according to claim 4, it is characterised in that
Described a connecting piece and described second connects sheet and is respectively positioned on the side, component side place of described circuit board, and with described circuit
There is gap in the component side of plate.
7. a terminal, it is characterised in that described terminal includes: the arbitrary described antenna of claim 1 to 6.
Terminal the most according to claim 7, it is characterised in that described terminal also includes: be enclosed in described terminal surrounding
Metal edge frame；
On described metal edge frame length shorter while being provided with two breaking joints, described metal edge frame is separated by said two breaking joint
For underframe and side frame, described underframe is described metal strip structure.
9. the manufacture method of an antenna, it is characterised in that described method includes:
One metal strip structure is provided, is arranged on a connecting piece on described metal strip structure and second and connects sheet, described
A connecting piece is used for connecting signal feed, and described second connects sheet is used for connecting earth point；
Described metal strip structure arranges low pass filter, makes described low pass filter be positioned on described metal strip structure
Away from one end of described a connecting piece, and the position that described low pass filter is on described metal strip structure meets: target
The peak frequency of the low-frequency resonant that metal segments produces is equal with the cut-off frequency of described low pass filter；
Wherein, described metal strip structure is divided into two sections by described low pass filter, and described metal target section is in described two sections
Near described a connecting piece one section.
Method the most according to claim 9, it is characterised in that described low pass filtered is set on described metal strip structure
Ripple device, including:
Obtain the cut-off frequency of described low pass filter；
Determine described low pass filter position on described metal strip structure according to described cut-off frequency, make described target gold
Length L belonging to section meets:
Wherein, described v is electromagnetic wave velocity of wave when propagating in a vacuum, and described f is cut-off frequency, describedFor described antenna
Type.
11. methods according to claim 10, it is characterised in that
V=3 × 108Metre per second (m/s), described antenna isThe antenna of wavelength.
12. methods according to claim 9, it is characterised in that described method also includes:
One circuit board is provided, described circuit board is provided with signal feed and earth point；
By described a connecting piece, described metal strip structure is connected with described signal feed, connects sheet by described second
Described metal strip structure is connected with described earth point.
13. according to the arbitrary described method of claim 9 to 12, it is characterised in that
The cut-off frequency f of described low pass filter meets: 800≤f ＜ 960, and the unit of described f is megahertz；
Frequency range m of the low-frequency resonant that described metal strip structure produces meets: 700≤m≤960, and the unit of described m is megahertz
Hereby.
14. antennas according to claim 12, it is characterised in that
Described a connecting piece and described second connects sheet and is respectively positioned on the side, component side place of described circuit board, and with described circuit
There is gap in the component side of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958182.2A CN106329080A (en) | 2016-10-27 | 2016-10-27 | Antenna and manufacturing method thereof and terminal |
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| CN201610958182.2A CN106329080A (en) | 2016-10-27 | 2016-10-27 | Antenna and manufacturing method thereof and terminal |
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| CN201610958182.2A Pending CN106329080A (en) | 2016-10-27 | 2016-10-27 | Antenna and manufacturing method thereof and terminal |
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| CN108879074A (en) * | 2018-07-25 | 2018-11-23 | 北京小米移动软件有限公司 | A kind of terminal shell and terminal |
| WO2021114340A1 (en) * | 2019-12-13 | 2021-06-17 | 惠州Tcl移动通信有限公司 | Antenna array, fpc and electronic device |
| CN112993541A (en) * | 2019-12-13 | 2021-06-18 | Oppo广东移动通信有限公司 | Antenna device and electronic apparatus |
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| CN112993541B (en) * | 2019-12-13 | 2023-12-12 | Oppo广东移动通信有限公司 | Antenna device and electronic equipment |
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Application publication date: 20170111 |