CN107611568B - Antenna and terminal - Google Patents
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- CN107611568B CN107611568B CN201710725421.4A CN201710725421A CN107611568B CN 107611568 B CN107611568 B CN 107611568B CN 201710725421 A CN201710725421 A CN 201710725421A CN 107611568 B CN107611568 B CN 107611568B
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Abstract
The present disclosure relates to an antenna and a terminal. The antenna includes: a feed point, a return point, a first switch, a second switch and an antenna radiator; the feed point and the first switch are respectively arranged on two sides of the length center point of the antenna radiator; the return point is arranged between the feed point and the first end of the antenna radiator; the first end is the tail end of the antenna radiator close to the feed point; the second switch is disposed between the first switch and the length center point. According to the technical scheme, the medium-high frequency radiation can be generated simultaneously in one state through the adjustment of the first switch and the second switch, the switching of software and hardware during the generation of the medium-high frequency radiation is avoided, the cost of the hardware and the software is saved, the complexity of a system is simplified, and the durability of equipment is improved.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to an antenna and a terminal.
Background
With the popularity of metal back cover mobile phones, the design requirements for mobile phone antennas are higher and higher. The working bandwidth of the antenna is required to meet the communication requirement of 700 + 2700MHz, and the antenna is required to occupy smaller space, so that the mobile phone is light and thin. In the related art, a commonly used mobile phone antenna is a three-section antenna, that is, a slot is respectively cut at the upper end and the lower end of a metal back shell, the three sections of metal of the back shell are connected into a whole through in-mold injection molding, then the two ends of a three-section back cover are used as antenna radiation areas, the larger the antenna radiation area is, the wider the impedance bandwidth of the antenna is, and the higher the radiation efficiency is.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide an antenna and a terminal. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided an antenna, including:
a feed point, a return point, a first switch, a second switch and an antenna radiator;
the feeding point and the first switch are respectively arranged on two sides of the length center point of the antenna radiator;
the return point is arranged between the feed point and the first end of the antenna radiator; the first end is the tail end of the antenna radiator close to the feed point;
the second switch is disposed between the first switch and the length center point.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the adjustment of the first switch and the second switch, low-frequency radiation can be generated from the feed point to the tail end of the antenna radiating body close to the first switch in one state, and medium-high frequency radiation is generated from the antenna radiating body returning to the first end and the antenna radiating body returning to the second end through the first switch, so that the switching between software and hardware during the generation of the medium-high frequency radiation is avoided, the cost of the hardware and the software is saved, the complexity of a system is simplified, and the durability of equipment is improved.
In one embodiment, the first switch is provided with two operating states;
when the first switch is in a first working state, the first switch is connected with a middle frame of the terminal or a metal back shell of the terminal through a first induction circuit;
when the first switch is in the second working state, the first switch is directly connected with the middle frame of the terminal or the metal back shell of the terminal.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through two operating modes of the first switch, low-frequency and medium-high frequency radiation can be generated respectively, the system complexity is simplified, and the equipment durability is improved.
In one embodiment, when the first switch is in the second working state, the first switch is connected with the middle frame of the terminal or the metal back shell of the terminal through the second sensing circuit.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the first switch is connected with the middle frame of the terminal or the metal back shell of the terminal through the induction circuit, and the frequency of radiation generated by the antenna can be adjusted by adjusting the induction circuit, so that the flexibility of antenna radiation is improved.
In one embodiment, the first inductive circuit comprises a first inductance and the second inductive circuit comprises a second inductance; wherein the second inductance is smaller than the first inductance.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: by adjusting the sizes of the first inductor and the second inductor, the frequency of radiation generated by the antenna can be adjusted, and the flexibility of antenna radiation is improved.
In one embodiment, the second switch is provided with four operating states;
when the second switch is in a third working state, the second switch is connected with a middle frame of the terminal or a metal back shell of the terminal through a third induction circuit;
when the second switch is in a fourth working state, the second switch is connected with a middle frame of the terminal or a metal back shell of the terminal through a fourth induction circuit;
when the second switch is in a fifth working state, the second switch is connected with the middle frame of the terminal or the metal back shell of the terminal through a fifth induction circuit;
and when the second switch is in a sixth working state, the second switch is directly connected with the middle frame of the terminal or the metal back shell of the terminal.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the four working states of the second switch, low-frequency and medium-high frequency radiation can be generated respectively, the system complexity is simplified, and the equipment durability is improved.
In one embodiment, when the second switch is in the sixth working state, the second switch is connected to the middle frame of the terminal or the metal back shell of the terminal through the sixth sensing circuit.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the second switch is connected with the middle frame of the terminal or the metal back shell of the terminal through the induction circuit, and the frequency of radiation generated by the antenna can be adjusted by adjusting the induction circuit, so that the flexibility of antenna radiation is improved.
In one embodiment, the third inductive circuit comprises a third inductance, the fourth inductive circuit comprises a fourth inductance, the fifth inductive circuit comprises a fifth inductance, and the sixth inductive circuit comprises a sixth inductance;
wherein the third inductance is smaller than the fourth inductance, the fourth inductance is smaller than the fifth inductance, and the sixth inductance is smaller than the third inductance.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: by adjusting the sizes of the third inductor, the fourth inductor, the fifth inductor and the sixth inductor, the frequency of radiation generated by the antenna can be adjusted, and the flexibility of antenna radiation is improved.
In one embodiment, when the first switch is in a first operating state and the second switch is in a third operating state, the antenna radiator from the feeding point to the second end is configured to generate low-frequency radiation of a first frequency;
when the first switch is in a first working state and the second switch is in a fourth working state, the antenna radiator from the feed point to the second end is used for generating low-frequency radiation of a second frequency;
when the first switch is in a first working state and the second switch is in a fifth working state, the antenna radiator from the feed point to the second end is used for generating low-frequency radiation of a third frequency;
the first frequency is greater than the second frequency, which is greater than the third frequency.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the adjustment of the first switch and the second switch, the low-frequency coverage with a large range is obtained with fewer switching times, the frequent switching of software and hardware is avoided, the cost of the hardware and the software is saved, the complexity of the system is simplified, and the durability of the equipment is improved.
In one embodiment, when the first switch is in the second operating state and the second switch is in the sixth operating state, the antenna radiator from the return point to the first end and the antenna radiator from the first switch to the second end are used for generating the medium-high frequency radiation.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the adjustment of the first switch and the second switch, medium-high frequency radiation is generated simultaneously in one state, so that frequent switching of software and hardware is avoided, the cost of the hardware and the software is saved, the complexity of a system is simplified, and the durability of equipment is improved.
In one embodiment, the distance between the feeding point and the second end is greater than or equal to 57 mm and less than or equal to 75 mm.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: by adjusting the distance between the feed point and the tail end of the antenna radiation body, the coverage range of the antenna radiation frequency is adjusted, so that the antenna can realize a larger coverage range of the radiation frequency, and the practicability of the antenna is improved.
According to a second aspect of the embodiments of the present disclosure, there is provided a terminal including the antenna described in any of the embodiments of the first aspect.
In one embodiment, an antenna radiator of the antenna is a partial region of a middle frame of the terminal.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a diagram of an antenna structure of the related art.
Fig. 2 is a graph of radiation frequency of an antenna in the related art.
Fig. 3 is a block diagram illustrating an antenna in accordance with an exemplary embodiment.
Fig. 4 is a block diagram illustrating an antenna in accordance with an exemplary embodiment.
Fig. 5 is a block diagram illustrating an antenna in accordance with an exemplary embodiment.
Fig. 6 is a graph illustrating radiation frequency of an antenna according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The technical scheme provided by the embodiment of the disclosure relates to an antenna of a terminal, and as shown in fig. 1, two switches, namely a switch S1 and a switch S2, are arranged on two sides of a feed point F of the antenna in the related art, and the switch S1 and the switch S2 can be connected with a middle frame of the terminal or a metal back shell of the terminal through different inductors in different states, so that the antenna generates radiation with different frequencies. Assuming that the antenna generates radiation frequency when not switched as shown in fig. 2, the resonance region between 700 + 800MHz (megahertz) can generate low frequency radiation with radiation curve as 201 in fig. 2, the resonance region between 1500 + 1700MHz can generate medium frequency radiation with radiation curve as 202 in fig. 2, and the resonance region between 2100 + 2300MHz can generate high frequency radiation with radiation curve as 203 in fig. 2. However, the three resonant frequencies are all very narrow, in order to realize the whole network coverage of the antenna at 700-; the switch S1 and the switch S2 switch at least three other operating states, so that the antenna can generate medium-high frequency radiation in the resonance region between 1500 and 2700MHz, and the radiation curves are shown as the curves 202 and 202a and the curves 203 and 203a in fig. 2. Therefore, when the antenna in the related art realizes 700-2700MHz full network coverage, the switching frequency of the switch is large, the service life of the switch is limited, and frequent switching of the switch can cause the service life of the switch to be reduced, thereby causing the service life of the terminal to be reduced; meanwhile, the complexity of software corresponding to the switching times is also high, which results in the complexity of the software of the terminal antenna system and the reduction of the system stability.
The present disclosure provides an antenna 30, as shown in fig. 3, the antenna 30 includes a feeding point 301, a ground point 302, a first switch 303, a second switch 304, and an antenna radiator 305.
Wherein, the feeding point 301 and the first switch 303 are respectively disposed at two sides of the center point a of the length of the antenna radiator 305. The ground return point 302 is arranged between the feed point 301 and the first end 305a of the antenna radiator 305; the first end 305a is the end of the antenna radiator 305 near the feed point 301. The second switch 304 is disposed between the first switch 303 and the length center point a.
The antenna radiator from the feeding point 301 to the second end 305b is used for generating low-frequency radiation; the second end 305b is the end of the antenna radiator 305 near the first switch 303; the antenna radiator from the ground point 302 to the first end 305a and the antenna radiator from the first switch 303 to the second end 305b are used for generating medium-high frequency radiation.
Illustratively, the feeding point 301 is a connection point of the radio frequency signal feeder 31 led out from the terminal board 20 and the antenna radiator 305; the ground return point 302 is a connection point between the wire 32 of the middle frame 10 of the terminal or the metal back case of the terminal, which is a middle portion of the three-segment antenna, and the antenna radiator 305. The embodiments of the present disclosure are illustrated with the middle frame 10 of the terminal as an example.
If the antenna radiator 305 has an axisymmetric structure, the feeding point 301 and the first switch 303 are respectively disposed on both sides of the symmetry axis of the antenna radiator 305. If the antenna radiator 305 has an asymmetric structure, the feeding point 301 and the first switch 303 are respectively disposed on two sides of the length center point a, and the lengths of the antenna radiators on the two sides of the length center point a are equal.
The embodiment of the present disclosure defines the end of the antenna radiator 305 near the feeding point 301 as the first end 305a of the antenna radiator 305, and defines the end of the antenna radiator 305 near the first switch 303 as the second end 305b of the antenna radiator 305. Since the feeding point 301 is disposed between the ground point 302 and the length center point a, that is, the distance from the feeding point 301 to the second end 305b is relatively long, the antenna radiator from the feeding point to the second end 305b can generate low-frequency radiation covering the frequency range of 700-960MHz through the three operating states of the first switch 303 and the second switch 304. Since the ground return point 302 and the first switch 303 are respectively close to two ends of the antenna radiator 305, that is, the distance from the ground return point 302 to the first end 305a is smaller, and the distance from the first switch 303 to the second end 305b is also smaller, in an operating state of the first switch 303 and the second switch 304, the radiation frequencies generated by the antenna radiator from the ground return point 302 to the first end 305a and the antenna radiator from the first switch 303 to the second end 305b can simultaneously cover the medium-high frequency radiation in the frequency range of 1700 + 2700MHz, that is, the medium-high frequency radiation can be realized without switching the first switch 303 and the second switch 304.
According to the technical scheme provided by the embodiment of the disclosure, medium-high frequency radiation can be generated simultaneously in one state through adjustment of the first switch and the second switch, switching of software and hardware during generation of medium-high frequency radiation is avoided, the cost of hardware and software is saved, the complexity of a system is simplified, and the durability of equipment is improved.
In one embodiment, the first switch 303 is provided with two operating states. When the first switch 303 is in the first working state, the first switch 303 is connected with the middle frame 10 of the terminal or the metal back shell of the terminal through the first sensing circuit; when the first switch 303 is in the second working state, the first switch 303 is directly connected to the middle frame 10 of the terminal or the metal back shell of the terminal.
For example, as shown in fig. 4, the embodiment of the present disclosure takes as an example that the first switch 303 is connected to the middle frame 10 of the terminal, and the first sensing circuit includes the first inductor 303 a. The first switch 303 may be a single-pole double-throw switch, and if the first switch 303 is in a first working state, that is, a first line of the first switch 303 is communicated, at this time, the first switch 303 is connected to the middle frame 10 of the terminal through a first inductor 303 a; if the first switch 303 is in the second working state, that is, the second line of the first switch 303 is connected, at this time, the first switch 303 is directly connected to the middle frame 10 of the terminal.
As can be seen from the above, the damping values of the two lines of the first switch 303 are different, and when the first switch 303 turns on different lines, the radiation frequencies of the antenna radiators are different.
According to the technical scheme provided by the embodiment of the disclosure, low-frequency and medium-high frequency radiation can be generated respectively through two working states of the first switch, so that the system complexity is simplified, and the equipment durability is improved.
In one embodiment, when the first switch 303 is in the second working state, the first switch 303 is connected to the middle frame 10 of the terminal or the metal back shell of the terminal through the second sensing circuit.
For example, in the embodiment of the present disclosure, the second sensing circuit includes the second inductor 303b, and the second inductor 303b may be smaller than the first inductor 303 a. As shown in fig. 5, when the first switch 303 is in the second working state, that is, the second line of the first switch 303 is connected, the first switch 303 can also be connected to the middle frame 10 of the terminal through the second inductor 303 b. Since the damping values of the first inductor 303a and the second inductor 303b are different, the antenna 30 can obtain different radiation frequencies by adjusting the damping values of the inductors.
In the technical scheme provided by the embodiment of the present disclosure, the first switch 303 is connected to the middle frame 10 of the terminal or the metal back shell of the terminal through an inductor, and the frequency of radiation generated by the antenna 30 can be adjusted by adjusting the induction circuit, thereby improving the flexibility of radiation of the antenna 30.
In one embodiment, the second switch 304 is provided with four operating states. When the second switch 304 is in the third working state, the second switch 304 is connected with the middle frame 10 of the terminal or the metal back shell of the terminal through the third sensing circuit; when the second switch 304 is in the fourth operating state, the second switch 304 is connected to the middle frame 10 of the terminal or the metal back shell of the terminal through the fourth sensing circuit; when the second switch 304 is in the fifth working state, the second switch 304 is connected with the middle frame 10 of the terminal or the metal back shell of the terminal through the fifth sensing circuit; when the second switch 304 is in the sixth operating state, the second switch 304 is directly connected to the middle frame 10 of the terminal or the metal back shell of the terminal.
For example, in the embodiment of the present disclosure, the third inductive circuit includes a third inductor 304a, the fourth inductive circuit includes a fourth inductor 304b, and the fifth inductive circuit includes a fifth inductor 304c, where the third inductor 304a is smaller than the fourth inductor 304b, and the fourth inductor 304b is smaller than the fifth inductor 304 c. Referring to fig. 4, the second switch 304 may be a single-pole four-throw switch, and if the second switch 304 is in a third working state, that is, the first line of the second switch 304 is connected, the second switch 304 is connected to the middle frame 10 of the terminal through the third inductor 303 a; if the second switch 304 is in the fourth operating state, that is, the second line of the second switch 304 is connected, at this time, the second switch 304 is connected to the middle frame 10 of the terminal through the fourth inductor 303 b; if the second switch 304 is in the fifth working state, that is, the third line of the second switch 304 is connected, at this time, the second switch 304 is connected to the middle frame 10 of the terminal through the fifth inductor 303 c; if the second switch 304 is in the sixth working state, i.e. the fourth line of the second switch 304 is connected, the second switch 304 is directly connected to the middle frame 10 of the terminal.
As can be seen from the above, the damping values of the four lines of the second switch 304 are different, and when the second switch 304 switches on different lines, the radiation frequency of the antenna radiator 305 is different. And the first switch 303 and the second switch 304 can be combined to generate a plurality of working states, so that the antenna 30 can generate more radiation frequencies, and the practicability of the antenna 30 is improved.
In the technical scheme provided by the embodiment of the disclosure, low-frequency and medium-high frequency radiation can be generated respectively through four working states of the second switch 304, thereby simplifying the system complexity and improving the durability of the device.
In one embodiment, when the second switch 304 is in the sixth working state, the second switch 304 is connected to the middle frame 10 of the terminal or the metal back shell of the terminal through the sixth sensing circuit.
For example, in the embodiment of the present disclosure, the sixth inductive circuit includes the sixth inductor 304d as an example, where the sixth inductor 304d is smaller than the third inductor 304 a. Referring to fig. 5, if the second switch 304 is in the sixth working state, that is, the fourth line of the second switch 304 is connected, at this time, the second switch 304 may also be connected to the middle frame 10 of the terminal through the sixth inductor 304d, and damping values of different inductors are different, so that the antenna 30 may obtain different radiation frequencies by adjusting the damping value of the sixth inductor 304 d.
In the technical solution provided in the embodiment of the present disclosure, the second switch 304 is connected to the middle frame 10 of the terminal or the metal back shell of the terminal through an inductor, and the frequency of radiation generated by the antenna 30 can be adjusted by adjusting the induction circuit, thereby improving the flexibility of radiation of the antenna 30.
In one embodiment, as shown in fig. 6, when the first switch 303 is in the first operating state and the second switch 304 is in the third operating state, the antenna radiator 305 from the feeding point 301 to the second end 305b is used for generating low-frequency radiation of the first frequency; when the first switch 303 is in the first operating state and the second switch 304 is in the fourth operating state, the antenna radiator 305 from the feeding point 301 to the second end 305b is configured to generate low-frequency radiation of the second frequency; when the first switch 303 is in the first operating state and the second switch 304 is in the fifth operating state, the antenna radiator 305 from the feeding point 301 to the second end 305b is configured to generate low-frequency radiation of a third frequency; the first frequency is greater than the second frequency, which is greater than the third frequency.
For example, when the first switch 303 is in the first operating state and the second switch 304 is in the third operating state, that is, the first switch 303 is connected to the middle frame 10 of the terminal through the first inductor 303a, the second switch 304 is connected to the middle frame 10 of the terminal through the third inductor 304a, and at this time, the antenna radiator from the feeding point 301 to the second end 305b is used for generating low-frequency radiation of the first frequency, assuming that the damping value of the first inductor 303a is not 0, and the damping value of the third inductor 304a is 3.3nH (nanohenry), the antenna radiator from the feeding point 301 to the second end 305b generates a radiation frequency curve as shown by a curve 601 in fig. 6, and the center frequency of the curve 601 is 900 MHz.
When the first switch 303 is in the first operating state and the second switch 304 is in the fourth operating state, that is, the first switch 303 is connected to the middle frame 10 of the terminal through the first inductor 303a, and the second switch 304 is connected to the middle frame 10 of the terminal through the fourth inductor 304b, at this time, the antenna radiator from the feeding point 301 to the second end 305b is used for generating low-frequency radiation of the second frequency, assuming that the damping value of the first inductor 303a is not 0, the damping value of the fourth inductor 304b is 9.2nH, the radiation frequency curve generated by the antenna radiator from the feeding point 301 to the second end 305b is as shown by a curve 602 in fig. 6, and the center frequency of the curve 602 is 850 MHz.
When the first switch 303 is in the first operating state and the second switch 304 is in the fifth operating state, that is, the first switch 303 is connected to the middle frame 10 of the terminal through the first inductor 303a, and the second switch 304 is connected to the middle frame 10 of the terminal through the fifth inductor 304c, at this time, the antenna radiator from the feeding point 301 to the second end 305b is used for generating low-frequency radiation of the third frequency, assuming that the damping value of the first inductor 303a is not 0, the damping value of the fifth inductor 304c is 22nH, the radiation frequency curve generated by the antenna radiator from the feeding point 301 to the second end 305b is as shown by a curve 603 in fig. 6, and the center frequency of the curve 603 is 750 MHz.
In the technical scheme provided by the embodiment of the disclosure, the low-frequency coverage with a large range is obtained by adjusting the first switch 303 and the second switch 304 with fewer switching times, so that frequent switching of software and hardware is avoided, the cost of hardware and software is saved, the complexity of a system is simplified, and the durability of equipment is improved.
In one embodiment, referring to fig. 6, when the first switch 303 is in the second operating state and the second switch 304 is in the sixth operating state, the antenna radiator 305 from the ground point 302 to the first end 305a and the antenna radiator 305 from the first switch 303 to the second end 305b are used for generating medium-high frequency radiation.
For example, when the first switch 303 is in the second operating state and the second switch 304 is in the sixth operating state, that is, the first switch 303 is directly connected to the middle frame 10 of the terminal, and the second switch 304 is directly connected to the middle frame 10 of the terminal, the antenna radiator 305 from the ground point 302 to the first end 305a and the antenna radiator 305 from the first switch 303 to the second end 305b generate medium-high frequency radiation, and the generated radiation frequency curve is shown as a curve 604 in fig. 6, as can be seen from fig. 6, the curve 604 covers the frequency range of 1700 + 2700 MHz.
In the technical scheme provided by the embodiment of the disclosure, medium-high frequency radiation is generated simultaneously in one state through adjustment of the first switch 303 and the second switch 304, so that frequent switching of software and hardware is avoided, the cost of hardware and software is saved, the complexity of a system is simplified, and the durability of equipment is improved.
In one embodiment, the distance between the feeding point 301 and the second end 305b is greater than or equal to 57 mm, and less than or equal to 75 mm.
For example, if the distance between the feeding point 301 and the second end 305b is large, the low-frequency radiation frequency of the antenna 30 may drift toward a high-frequency direction, so that the radiation frequency of the antenna 30 is too large to cover a frequency range of 700-970 MHz, which affects the terminal to receive or transmit the low-frequency signal.
If the distance between the feeding point 301 and the second end 305b is small, the low-frequency radiation frequency of the antenna 30 may drift toward the ultra-low frequency direction, so that the radiation frequency of the antenna 30 is too small to cover the frequency range of 700-970 MHz, which affects the reception or transmission of the low-frequency signal by the terminal.
In summary, in order to satisfy the low frequency radiation of the antenna 30, the distance between the feeding point 301 and the second end 305b should satisfy the range of greater than or equal to 57 mm and less than or equal to 75 mm.
In the technical scheme provided by the embodiment of the present disclosure, the coverage of the antenna radiation frequency is adjusted by adjusting the distance between the feed point and the end of the antenna radiator, so that the antenna 30 can realize a larger coverage of the radiation frequency, and the practicability of the antenna 30 is improved.
According to an embodiment of the present disclosure, there is also provided a terminal including the antenna according to any of the above embodiments.
Illustratively, the antenna may include a feed point, a return point, a first switch, a second switch, and an antenna radiator.
The feed point and the first switch are respectively arranged on two sides of the central point of the length of the antenna radiator. The return point is arranged between the feed point and the first end of the antenna radiator; the first end is the end of the antenna radiator near the feed point. The second switch is disposed between the first switch and the length center point.
The antenna radiator from the feed point to the second end is used for generating low-frequency radiation; the second end is close to the tail end of the antenna radiator of the first switch; the antenna radiator returning to the first end and the antenna radiator returning to the second end from the first switch are used for generating medium-high frequency radiation.
Specifically, the antenna radiator may be a partial region of a middle frame of the terminal.
The embodiment of the present disclosure provides a terminal, which can simultaneously generate medium-high frequency radiation in one state by adjusting a first switch and a second switch of an antenna, thereby avoiding switching between software and hardware when generating medium-high frequency radiation, saving the cost of hardware and software, simplifying the complexity of a system, and improving the durability of equipment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. An antenna, comprising:
a feed point, a return point, a first switch, a second switch and an antenna radiator;
the feeding point and the first switch are respectively arranged on two sides of the length center point of the antenna radiator;
the return point is arranged between the feed point and the first end of the antenna radiator; the first end is the tail end of the antenna radiator close to the feed point;
the second switch is disposed between the first switch and the length center point; the second end of the antenna radiator is the end of the antenna radiator close to the first switch;
wherein, the radiation frequency generated by the antenna radiator between the return point and the first end and between the first switch and the second end covers the middle-high frequency radiation in the range of 1700 + 2700 MHz;
the first switch is provided with two working states, and the second switch is provided with four working states;
when the first switch is in a second working state, the first switch is directly connected with a middle frame of the terminal or a metal back shell of the terminal;
when the second switch is in a sixth working state, the second switch is directly connected with the middle frame of the terminal or the metal back shell of the terminal;
and when the first switch is in a second working state and the second switch is in a sixth working state, the antenna radiating body from the return point to the first end and the antenna radiating body from the first switch to the second end are used for generating the medium-high frequency radiation.
2. The antenna of claim 1,
when the first switch is in a first working state, the first switch is connected with a middle frame of the terminal or a metal back shell of the terminal through a first induction circuit.
3. The antenna of claim 2,
when the first switch is in a second working state, the first switch is connected with the middle frame of the terminal or the metal back shell of the terminal through the second induction circuit.
4. The antenna of claim 3, wherein the first inductive circuit comprises a first inductance and the second inductive circuit comprises a second inductance;
wherein the second inductance is smaller than the first inductance.
5. The antenna of any of claims 2 to 4,
when the second switch is in a third working state, the second switch is connected with a middle frame of the terminal or a metal back shell of the terminal through a third induction circuit;
when the second switch is in a fourth working state, the second switch is connected with a middle frame of the terminal or a metal back shell of the terminal through a fourth induction circuit;
and when the second switch is in a fifth working state, the second switch is connected with the middle frame of the terminal or the metal back shell of the terminal through a fifth induction circuit.
6. The antenna of claim 5,
and when the second switch is in a sixth working state, the second switch is connected with the middle frame of the terminal or the metal back shell of the terminal through a sixth induction circuit.
7. The antenna of claim 6, wherein the third inductive circuit comprises a third inductor, the fourth inductive circuit comprises a fourth inductor, the fifth inductive circuit comprises a fifth inductor, and the sixth inductive circuit comprises a sixth inductor;
wherein the third inductance is smaller than the fourth inductance, the fourth inductance is smaller than the fifth inductance, and the sixth inductance is smaller than the third inductance.
8. The antenna of claim 5,
when the first switch is in a first working state and the second switch is in a third working state, the antenna radiator from the feed point to the second end is used for generating low-frequency radiation of a first frequency;
when the first switch is in a first working state and the second switch is in a fourth working state, the antenna radiator from the feed point to the second end is used for generating low-frequency radiation of a second frequency;
when the first switch is in a first working state and the second switch is in a fifth working state, the antenna radiator from the feed point to the second end is used for generating low-frequency radiation of a third frequency;
the first frequency is greater than the second frequency, which is greater than the third frequency.
9. The antenna according to any of claims 1 to 4,
the distance between the feeding point and the second end is greater than or equal to 57 millimeters and less than or equal to 75 millimeters.
10. A terminal, characterized in that it comprises an antenna according to any of claims 1 to 9.
11. The terminal of claim 10, wherein the antenna radiator of the antenna is a partial area of a middle frame of the terminal.
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CN108493575B (en) * | 2018-03-12 | 2020-08-04 | Oppo广东移动通信有限公司 | Antenna components and electronic equipment |
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