CN111710964A - Antenna - Google Patents
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- CN111710964A CN111710964A CN202010605869.4A CN202010605869A CN111710964A CN 111710964 A CN111710964 A CN 111710964A CN 202010605869 A CN202010605869 A CN 202010605869A CN 111710964 A CN111710964 A CN 111710964A
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- 239000003990 capacitor Substances 0.000 claims abstract description 128
- 239000006260 foam Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 description 8
- 238000004088 simulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
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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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- 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
- H01Q5/321—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 within a radiating element or between connected radiating elements
Abstract
The invention relates to the technical field of antennas, and discloses an antenna which comprises a first antenna main body, a second antenna main body, a modulation capacitor and a feeding mechanism, wherein the modulation capacitor is connected between the first antenna main body and the second antenna main body in series, and the feeding mechanism is used for connecting the first antenna main body and the second antenna main body with a chip. The antenna widens the frequency band of the antenna and improves the efficiency of the antenna under the condition of not using an antenna switch chip, and the cost of the antenna is greatly reduced without using the antenna switch chip.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to an antenna.
Background
In the current mobile terminal, the frequency bands of the antenna are more and more, the bandwidth required by the low-frequency part antenna is very wide, and the bandwidth needs to meet 698M-960M, so the bandwidth of the antenna needs to be improved according to the requirement.
Disclosure of Invention
The invention provides an antenna, which widens the frequency band of the antenna, improves the efficiency of the antenna and reduces the cost under the condition of not using a switch chip.
In order to achieve the purpose, the invention provides the following technical scheme:
an antenna comprises a first antenna body, a second antenna body, a modulation capacitor connected in series between the first antenna body and the second antenna body, and a feeding mechanism for connecting the first antenna body and the second antenna body with a chip.
The antenna comprises a first antenna main body and a second antenna main body, wherein a modulation capacitor is connected between the first antenna main body and the second antenna main body in series, the frequency band of the antenna can be widened, particularly the low-frequency band of the antenna, the coverage of the bandwidth of 698M-960M is realized on the basis of not using a switch chip, the antenna efficiency is obviously improved, and the cost of the antenna is greatly reduced by not using the antenna switch chip.
Preferably, the feeding mechanism includes a feeding part connected to the first antenna body or the second antenna body.
Preferably, the feeding part is one of a spring plate, a screw and conductive foam.
Preferably, when the feeding part is connected to the first antenna main body, one end of the modulation capacitor is connected to the first antenna main body or the feeding part, and the other end is connected to the second antenna main body;
when the feeding component is connected with the second antenna main body, one end of the modulation capacitor is connected with the first antenna main body, and the other end of the modulation capacitor is connected with the second antenna main body or the feeding component.
Preferably, the antenna further comprises a grounding mechanism for grounding, the grounding mechanism comprising at least one of a first grounding member connected to the first antenna body to ground the first antenna body and a second grounding member connected to the second antenna body to ground the second antenna body.
Preferably, the first grounding part is one of an elastic sheet, a screw and conductive foam; the second grounding part is one of an elastic sheet, a screw and conductive foam.
Preferably, when the feeding component is connected to the first antenna main body and the grounding mechanism includes a first grounding component, one end of the modulation capacitor is connected to any one of the first antenna main body, the feeding component and the first grounding component, and the other end is connected to the second antenna main body; or the like, or, alternatively,
when the feed part is connected with the first antenna main body and the grounding mechanism comprises a second grounding part, one end of the modulation capacitor is connected with any one of the first antenna main body and the feed part, and the other end of the modulation capacitor is connected with any one of the second antenna main body and the second grounding part; or the like, or, alternatively,
when the feed part is connected with the first antenna main body and the grounding mechanism comprises a first grounding part and a second grounding part, one end of the modulation capacitor is connected with any one of the first antenna main body, the feed part and the first grounding part, and the other end of the modulation capacitor is connected with any one of the second antenna main body and the second grounding part; or the like, or, alternatively,
when the feeding component is connected with the second antenna main body and the grounding mechanism comprises a first grounding component, one end of the modulation capacitor is connected with any one of the first antenna main body and the first grounding component, and the other end of the modulation capacitor is connected with any one of the second antenna main body and the feeding component; or the like, or, alternatively,
when the feeding component is connected with the second antenna main body and the grounding mechanism comprises a second grounding component, one end of the modulation capacitor is connected with the first antenna main body, and the other end of the modulation capacitor is connected with any one of the second antenna main body, the second grounding component and the feeding component; or the like, or, alternatively,
when the feeding component is connected to the second antenna main body and the grounding mechanism includes a first grounding component and a second grounding component, one end of the modulation capacitor is connected to any one of the first antenna main body and the first grounding component, and the other end of the modulation capacitor is connected to any one of the second antenna main body, the second grounding component and the feeding component.
Preferably, the feeding mechanism includes a first feeding part connected to the first antenna body and a second feeding part connected to the second antenna body.
Preferably, the first feed part is one of a spring plate, a screw and conductive foam; the second feed part is one of an elastic sheet, a screw and conductive foam.
Preferably, one end of the modulation capacitor is connected to the first antenna body or the first feeding member, and the other end of the modulation capacitor is connected to the second antenna body or the second feeding member.
Preferably, the antenna further comprises a grounding mechanism for grounding, the grounding mechanism comprising at least one of a first grounding member connected to the first antenna body to ground the first antenna body and a second grounding member connected to the second antenna body to ground the second antenna body.
Preferably, the first grounding part is one of an elastic sheet, a screw and conductive foam; the second grounding part is one of an elastic sheet, a screw and conductive foam.
Preferably, when the grounding mechanism includes a first grounding member, one end of the modulation capacitor is connected to any one of the first antenna main body, the first feeding member and the first grounding member, and the other end of the modulation capacitor is connected to any one of the second antenna main body and the second feeding member; or the like, or, alternatively,
when the grounding mechanism comprises a second grounding component, one end of the modulation capacitor is connected with any one of the first antenna main body and the first feeding component, and the other end of the modulation capacitor is connected with any one of the second antenna main body, the second grounding component and the second feeding component; or the like, or, alternatively,
when the grounding mechanism comprises a first grounding component and a second grounding component, one end of the modulation capacitor is connected with any one of the first antenna main body, the first feeding component and the first grounding component, and the other end of the modulation capacitor is connected with any one of the second antenna main body, the second feeding component and the second grounding component.
Preferably, when the grounding mechanism comprises a first grounding part, the first grounding part is grounded through a grounding inductor, or the first grounding part is grounded through a grounding capacitor, or the first grounding part is directly grounded;
when the grounding mechanism comprises a second grounding component, the second grounding component is grounded through a grounding inductor, or the second grounding component is grounded through a grounding capacitor, or the second grounding component is directly grounded.
Preferably, the ground inductance is greater than 5 nh.
Preferably, the modulation capacitance is less than or equal to 3 pf.
Preferably, the first antenna body and the second antenna body have the same shape, or the first antenna body and the second antenna body have different shapes.
Drawings
Fig. 1 is a schematic structural diagram of a first antenna according to an embodiment of the present invention;
FIG. 2 is a graph comparing the simulation effect of the standing wave of the antenna of FIG. 1 of the present invention with that of the prior art;
FIG. 3 is a simulated comparison of the radiation efficiency of the antenna of FIG. 1 of the present invention and that of the prior art;
fig. 4 is a schematic structural diagram of a second antenna according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third antenna according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fourth antenna according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fifth antenna according to an embodiment of the present invention.
Icon:
1-a first antenna body 1; 2-a second antenna body 2; 3-modulation capacitance 3; 4-a feeding means; 5-chip; 6-a first grounding part; 7-a second grounding part; 8-a ground inductance; 9-a circuit board; 10-a first feeding means; 11-second feeding means.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 4, 5, 6 and 7, the present invention provides an antenna, which includes a first antenna body 1, a second antenna body 2, a modulation capacitor 3 connected in series between the first antenna body 1 and the second antenna body 2, and a feeding mechanism for connecting the first antenna body 1 and the second antenna body 2 with a chip 5.
The antenna comprises a first antenna main body 1 and a second antenna main body 2, wherein a modulation capacitor 3 is connected between the first antenna main body 1 and the second antenna main body 2 in series, the antenna can widen the frequency band of the antenna, particularly the low-frequency band of the antenna, the coverage of the bandwidth of 698M-960M is realized on the basis of not using an antenna switch chip, the antenna efficiency is obviously improved, and the cost of the antenna is greatly reduced by not using the antenna switch chip.
The simulation of the first solution of the prior art comprises an antenna body and an antenna switch chip connected with the antenna body, and the second solution comprises an antenna body, a modulation capacitor 3 connected with the antenna body and an antenna switch chip connected with the antenna body, for example, as shown in fig. 2 and fig. 3, fig. 2 is a comparison graph of the standing wave simulation effect of the antenna of the present invention and the standing wave simulation effect of the two solutions of the prior art, wherein the ordinate represents the reflection coefficient (S11 parameter) in dB, the abscissa represents the frequency in GHz, a curve a (a dot in the curve a is only used for distinguishing the curve a from a curve C to prevent difficult distinguishing at the inflection point) is a simulation curve of the first solution of the prior art, a curve B is a simulation curve of the second solution of the prior art, and a curve C represents a simulation curve of the first antenna provided in the present invention, as can be seen from fig. 2, the return loss of the antenna provided by the present invention is lower compared to the prior art.
Fig. 3 shows a comparison diagram of efficiency simulation between the antenna of the present invention and two schemes in the prior art, where the ordinate represents efficiency and the unit is dB, the abscissa represents frequency and the unit is GHz, the curve a represents a radiation efficiency curve of a first scheme in the prior art, the curve B represents a radiation efficiency curve of a second scheme in the prior art, and the curve C represents a radiation efficiency curve of the antenna provided by the present invention, and it can be seen from fig. 3 that the antenna provided by the present invention has higher radiation efficiency compared with the prior art.
Specifically, the feeding mechanism includes one feeding part 4, and the feeding part 4 is connected to the first antenna body 1 or the second antenna body 2.
In one embodiment, the feeding mechanism includes only one feeding component 4, the feeding component 4 is directly connected with one of the first antenna body 1 and the second antenna body 2, and the other of the first antenna body 1 and the second antenna body 2 is connected with the feeding component through other components, so that the connection between the first antenna body 1 and the second antenna body 2 and the chip 5 is realized through the feeding component.
Specifically, the feeding component 4 is one of an elastic sheet, a screw, and a conductive foam, and the feeding component 4 may also be another component capable of electrically connecting the antenna main body and the chip 5, which is not particularly limited in the present invention.
Specifically, referring to fig. 1 and 4, when the feeding part 4 is connected to the first antenna body 1, one end of the modulation capacitor 3 is connected to the first antenna body 1 (as shown in fig. 1) or the feeding part (as shown in fig. 4), and the other end is connected to the second antenna body 2; at this time, the first antenna body 1 is directly electrically connected with the feeding part, so that the chip 5 is electrically connected with the first antenna body 1, the second antenna body is connected with the modulation capacitor 3, and one end of the modulation capacitor 3, which is not connected with the second antenna body 2, is connected with the first antenna body 1 or the feeding part, so that the chip 5 is connected with the second antenna body 2, and thus feeding between the chip 5 and the first antenna body 1 and the second antenna body 2 is realized.
Specifically, when the feeding component 4 is connected to the second antenna body 2, one end of the modulation capacitor 3 is connected to the first antenna body 1, and the other end is connected to the second antenna body 2 or the feeding component, at this time, the second antenna body 2 is directly electrically connected to the feeding component, so as to electrically connect the chip 5 to the second antenna body 2, the first antenna body is connected to the small capacitor, and one end of the small capacitor, which is not connected to the first antenna body 1, is connected to the second antenna body 2 or the feeding component, so as to connect the chip 5 to the first antenna body 1, so as to realize feeding between the chip 5 and the first antenna body 1 and the second antenna body 2.
Specifically, as shown in fig. 1, 5, and 6, the antenna further includes a grounding mechanism for grounding, the grounding mechanism including at least one of a first grounding member 6 connected to the first antenna body 1 to ground the first antenna body 1, and a second grounding member 7 connected to the second antenna body 2 to ground the second antenna body 2.
When the grounding structure includes the first grounding member 6 and the second grounding member 7, the first antenna body 1 is connected to the first grounding member 6 and grounded through the first grounding member 6, and the second antenna body 2 is connected to the second grounding member 7 and grounded through the second grounding member 7; when the grounding structure includes the first grounding part 6, the first antenna main body 1 is connected with the first grounding part 6 and grounded through the first grounding part 6; when the grounding mechanism includes the second grounding member 7, the second antenna body 2 is connected to the second grounding member 7 and grounded through the second grounding member 7.
Specifically, the first grounding part 6 is one of a spring, a screw, and conductive foam, and the first grounding part 6 may also adopt other parts capable of electrically connecting the antenna main body and the ground end, which is not particularly limited in the present invention; the second grounding part 7 is one of a spring, a screw, and conductive foam, and the second grounding part 7 may also be another part capable of electrically connecting the antenna main body and the ground end, which is not particularly limited in the present invention.
When the feeding mechanism in the antenna comprises one feeding means 4 and the grounding mechanism comprises at least one of the first grounding means 6 and the second grounding means 7, the specific embodiment is as follows:
the first method is as follows: the feed part 4 is connected with the first antenna body 1, the grounding mechanism comprises a first grounding part 6, one end of the modulation capacitor 3 is connected with any one of the first antenna body 1, the feed part and the first grounding part 6, and the other end is connected with the second antenna body 2; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1 or connected to one of the feeding member and the first grounding member 6, and since the feeding member and the first grounding member 6 are respectively connected to the first antenna body 1, the connection between one end of the modulation capacitor 3 and the first antenna body 1 is realized, and the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, so that the modulation capacitor 3 is connected in series between the first antenna body 1 and the second antenna body 2.
The second method comprises the following steps: as shown in fig. 6 and 7, the feeding member 4 is connected to the first antenna body 1, the grounding mechanism includes a second grounding member 7, one end of the modulation capacitor 3 is connected to any one of the first antenna body 1 and the feeding member, and the other end is connected to any one of the second antenna body 2 and the second grounding member 7; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1 or connected to the feeding component, and the feeding component is connected to the first antenna body 1, so that the connection between the one end of the modulation capacitor 3 and the first antenna body 1 is realized, the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to the second grounding component 7, and the second grounding component 7 is connected to the second antenna body 2, so that the connection between the other end of the modulation capacitor 3 and the second antenna body 2 is realized, and the modulation capacitor 3 is connected in series between the first antenna body 1 and the second antenna body 2.
The third method comprises the following steps: as shown in fig. 1 and 4, the feeding member 4 is connected to the first antenna body 1, the grounding mechanism includes a first grounding member 6 and a second grounding member 7, one end of the modulation capacitor 3 is connected to any one of the first antenna body 1, the feeding member, and the first grounding member 6, and the other end is connected to any one of the second antenna body 2 and the second grounding member 7; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1, or connected to one of the feeding member and the first grounding member 6, the feeding member and the first grounding member 6 are respectively connected to the first antenna body 1, so that the one end of the modulation capacitor 3 is connected to the first antenna body 1, the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to the second grounding member 7, and the second grounding member 7 is connected to the second antenna body 2, so that the other end of the modulation capacitor 3 is connected to the second antenna body 2, and the modulation capacitor 3 is serially connected between the first antenna body 1 and the second antenna body 2.
The method is as follows: the feed component 4 is connected with the second antenna body 2, the grounding mechanism comprises a first grounding component 6, one end of the modulation capacitor 3 is connected with any one of the first antenna body 1 and the first grounding component 6, and the other end of the modulation capacitor is connected with any one of the second antenna body 2 and the feed component; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1 or connected to the first grounding member 6, and the first grounding member 6 is connected to the first antenna body 1, so that the one end of the modulation capacitor 3 is connected to the first antenna body 1, and the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to the feeding member, so that the other end of the modulation capacitor 3 is connected to the second antenna body 2, and the modulation capacitor 3 is serially connected between the first antenna body 1 and the second antenna body 2.
The fifth mode is as follows: the feed component 4 is connected with the second antenna body 2, the grounding mechanism comprises a second grounding component 7, one end of the modulation capacitor 3 is connected with the first antenna body 1, and the other end of the modulation capacitor is connected with any one of the second antenna body 2, the second grounding component 7 and the feed component; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1, and the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to one of the feeding component and the second grounding component 7, and the feeding component and the second grounding component 7 are respectively connected to the second antenna body 2, so that the connection between the other end of the modulation capacitor 3 and the second antenna body 2 is realized, and the modulation capacitor 3 is connected in series between the first antenna body 1 and the second antenna body 2.
The method six: the feed component 4 is connected with the second antenna body 2, the grounding mechanism comprises a first grounding component 6 and a second grounding component 7, one end of the modulation capacitor 3 is connected with any one of the first antenna body 1 and the first grounding component 6, and the other end of the modulation capacitor is connected with any one of the second antenna body 2, the second grounding component 7 and the feed component; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1 or connected to the first grounding member 6, and the first grounding member 6 is connected to the first antenna body 1, so that the one end of the modulation capacitor 3 is connected to the first antenna body 1, and the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to the feeding member or the second grounding member 7, and the second grounding member 7 and the feeding member are connected to the second antenna body 2, so that the other end of the modulation capacitor 3 is connected to the second antenna body 2, and the modulation capacitor 3 is serially connected between the first antenna body 1 and the second antenna body 2.
Specifically, as shown in fig. 5, the feeding mechanism may further include a first feeding component 10 connected to the first antenna body 1 and a second feeding component 11 connected to the second antenna body 2, where the first antenna body 1 is electrically connected to the chip 5 through the first feeding component 10, and the second antenna body 2 is electrically connected to the chip 5 through the second feeding component 11, so that feeding between the chip 5 and the first and second antenna bodies 1 and 2 is realized.
Specifically, the first feeding component 10 is one of a spring plate, a screw, and conductive foam, and the first feeding component 10 may also adopt other components capable of electrically connecting the antenna main body and the chip 5, which is not particularly limited in the present invention; the second feeding component 11 is one of a spring, a screw, and a conductive foam, and the second feeding component 11 may also be another component capable of electrically connecting the antenna main body and the chip 5, which is not particularly limited in the present invention.
Specifically, one end of the modulation capacitor 3 is connected to the first antenna body 1 or the first feeding component 10, and the other end is connected to the second antenna body 2 or the second feeding component 11, since the first feeding component 10 is connected to the first antenna body 1, the modulation capacitor 3 is connected to the first feeding component 10, and the connection to the first antenna body 1 is realized, since the second feeding component 11 is connected to the second antenna body 2, the modulation capacitor 3 is connected to the second feeding component 11, and the connection to the second antenna body 2 is realized, so that the one end of the modulation capacitor 3 is directly or indirectly connected to the first antenna body 1, and the other end is directly or indirectly connected to the second antenna body 2, so that the modulation capacitor 3 is connected in series between the first antenna body 1 and the second antenna body, and the low-frequency band of the antenna is widened without using an antenna switch chip, the antenna efficiency is obviously improved, the performance of the antenna is greatly improved, and the cost is saved.
Specifically, the antenna further includes a grounding mechanism for grounding, the grounding mechanism including at least one of a first grounding member 6 connected to the first antenna body 1 to ground the first antenna body 1 and a second grounding member 7 connected to the second antenna body 2 to ground the second antenna body 2.
When the grounding structure includes the first grounding member 6 and the second grounding member 7, the first antenna body 1 is connected to the first grounding member 6 and grounded through the first grounding member 6, and the second antenna body 2 is connected to the second grounding member 7 and grounded through the second grounding member 7; when the grounding structure includes the first grounding part 6, the first antenna main body 1 is connected with the first grounding part 6 and grounded through the first grounding part 6; when the grounding mechanism includes the second grounding member 7, the second antenna body 2 is connected to the second grounding member 7 and grounded through the second grounding member 7. Specifically, the first grounding part 6 is one of a spring, a screw, and conductive foam, and the first grounding part 6 may also adopt other parts capable of electrically connecting the antenna main body and the ground end, which is not particularly limited in the present invention; the second grounding part 7 is one of a spring, a screw, and conductive foam, and the second grounding part 7 may also be another part capable of electrically connecting the antenna main body and the ground end, which is not particularly limited in the present invention.
When the feeding structure in the antenna comprises the first feeding part 10 connected with the first antenna body 1 and the second feeding part 11 connected with the second antenna body 2, and the grounding mechanism comprises at least one of the first grounding part 6 and the second grounding part 7, the specific implementation is as follows:
the method is as follows: as shown in fig. 5, the grounding mechanism includes a first grounding member 6, one end of the modulation capacitor 3 is connected to any one of the first antenna body 1, the first feeding member 10, and the first grounding member 6, and the other end is connected to any one of the second antenna body 2 and the second feeding member 11; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1, or connected to one of the first feeding member 10 and the first grounding member 6, the first grounding member 6 and the first feeding member 10 are respectively connected to the first antenna body 1, so that the one end of the modulation capacitor 3 is connected to the first antenna body 1, the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to the second feeding member 11, and the second feeding member 11 is connected to the second antenna body 2, so that the other end of the modulation capacitor 3 is connected to the second antenna body 2, and the modulation capacitor 3 is serially connected between the first antenna body 1 and the second antenna body 2.
The method eight: when the grounding mechanism includes the second grounding member 7, one end of the modulation capacitor 3 is connected to any one of the first antenna body 1 and the first feeding member 10, and the other end is connected to any one of the second antenna body 2, the second grounding member 7 and the second feeding member 11; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1 or connected to the first feeding member 10, and the first feeding member 10 is connected to the first antenna body 1, so that the one end of the modulation capacitor 3 is connected to the first antenna body 1, and the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to one of the second feeding member 11 and the second grounding member 7, and the second feeding member 11 and the second grounding member 7 are connected to the second antenna body 2, so that the other end of the modulation capacitor 3 is connected to the second antenna body 2, and the modulation capacitor 3 is serially connected between the first antenna body 1 and the second antenna body 2.
The method is nine: when the grounding mechanism includes the first grounding member 6 and the second grounding member 7, one end of the modulation capacitor 3 is connected to any one of the first antenna body 1, the first power feeding member 10 and the first grounding member 6, and the other end is connected to any one of the second antenna body 2, the second power feeding member 11 and the second grounding member 7; in this embodiment, one end of the modulation capacitor 3 is directly connected to the first antenna body 1, or connected to one of the first feeding member 10 and the first grounding member 6, the first grounding member 6 and the first feeding member 10 are respectively connected to the first antenna body 1, so that the one end of the modulation capacitor 3 is connected to the first antenna body 1, the other end of the modulation capacitor 3 is directly connected to the second antenna body 2, or the other end of the modulation capacitor 3 is connected to one of the second feeding member 11 and the second grounding member 7, the second feeding member 11 and the second grounding member 7 are respectively connected to the second antenna body 2, so that the other end of the modulation capacitor 3 is connected to the second antenna body 2, and the modulation capacitor 3 is serially connected between the first antenna body 1 and the second antenna body 2.
Specifically, when the grounding mechanism includes the first grounding member 6, the first grounding member 6 is grounded through the grounding inductance 8, or the first grounding member 6 is grounded through the grounding capacitance, or the first grounding member 6 is directly grounded;
when the grounding mechanism comprises the second grounding member 7, the second grounding member 7 is grounded through the grounding inductor 8, or the second grounding member 7 is grounded through the grounding capacitor, or the second grounding member 7 is directly grounded.
Specifically, the ground inductance 8 is greater than 5 nh.
Specifically, the modulation capacitance 3 is less than or equal to 3 pf.
Specifically, the first antenna body 1 and the second antenna body 2 are the same in shape, or the first antenna body 1 and the second antenna body 2 are different in shape.
The shapes of the first antenna main body 1 and the second antenna main body 2 in the antenna can be selected according to actual needs, the antenna is installed on the circuit board 9 in the mobile terminal, the first antenna main body 1 and the second antenna main body 2 can be selected according to the space in the mobile terminal, the space of the circuit board 9 and the like, suitable positions and suitable arrangement modes can be selected, any one of the above embodiments of the invention can be reasonably selected, the low-frequency band of the antenna can be widened under the condition that an antenna switch chip is not used, and the antenna efficiency is obviously improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (17)
1. An antenna, comprising a first antenna body, a second antenna body, a modulation capacitor connected in series between the first antenna body and the second antenna body, and a feeding mechanism for connecting the first antenna body and the second antenna body with a chip.
2. The antenna of claim 1, wherein the feed mechanism comprises a feed member connected to the first antenna body or the second antenna body.
3. The antenna of claim 2, wherein the feeding component is one of a spring, a screw, and a conductive foam.
4. An antenna according to claim 3, wherein when the feeding section is connected to the first antenna body, one end of the modulation capacitor is connected to the first antenna body or the feeding section, and the other end is connected to the second antenna body;
when the feeding component is connected with the second antenna main body, one end of the modulation capacitor is connected with the first antenna main body, and the other end of the modulation capacitor is connected with the second antenna main body or the feeding component.
5. The antenna of claim 3, further comprising a grounding mechanism for grounding, the grounding mechanism comprising at least one of a first grounding member connected with the first antenna body to ground the first antenna body and a second grounding member connected with the second antenna body to ground the second antenna body.
6. The antenna of claim 5, wherein the first grounding member is one of a spring, a screw, and a conductive foam; the second grounding part is one of an elastic sheet, a screw and conductive foam.
7. The antenna according to claim 6, wherein when the feeding means is connected to the first antenna main body and the grounding mechanism includes a first grounding means, one end of the modulation capacitor is connected to any one of the first antenna main body, the feeding means, and the first grounding means, and the other end is connected to the second antenna main body; or the like, or, alternatively,
when the feed part is connected with the first antenna main body and the grounding mechanism comprises a second grounding part, one end of the modulation capacitor is connected with any one of the first antenna main body and the feed part, and the other end of the modulation capacitor is connected with any one of the second antenna main body and the second grounding part; or the like, or, alternatively,
when the feed part is connected with the first antenna main body and the grounding mechanism comprises a first grounding part and a second grounding part, one end of the modulation capacitor is connected with any one of the first antenna main body, the feed part and the first grounding part, and the other end of the modulation capacitor is connected with any one of the second antenna main body and the second grounding part; or the like, or, alternatively,
when the feeding component is connected with the second antenna main body and the grounding mechanism comprises a first grounding component, one end of the modulation capacitor is connected with any one of the first antenna main body and the first grounding component, and the other end of the modulation capacitor is connected with any one of the second antenna main body and the feeding component; or the like, or, alternatively,
when the feeding component is connected with the second antenna main body and the grounding mechanism comprises a second grounding component, one end of the modulation capacitor is connected with the first antenna main body, and the other end of the modulation capacitor is connected with any one of the second antenna main body, the second grounding component and the feeding component; or the like, or, alternatively,
when the feeding component is connected to the second antenna main body and the grounding mechanism includes a first grounding component and a second grounding component, one end of the modulation capacitor is connected to any one of the first antenna main body and the first grounding component, and the other end of the modulation capacitor is connected to any one of the second antenna main body, the second grounding component and the feeding component.
8. The antenna of claim 1, wherein the feed mechanism comprises a first feed member connected to the first antenna body and a second feed member connected to a second antenna body.
9. The antenna of claim 8, wherein the first feeding member is one of a spring, a screw, and a conductive foam; the second feed part is one of an elastic sheet, a screw and conductive foam.
10. The antenna of claim 9, wherein the modulation capacitor has one end connected to the first antenna body or first feeding block and another end connected to the second antenna body or second feeding block.
11. The antenna of claim 9, further comprising a grounding mechanism for grounding, the grounding mechanism comprising at least one of a first grounding member connected with the first antenna body to ground the first antenna body and a second grounding member connected with the second antenna body to ground the second antenna body.
12. The antenna of claim 11, wherein the first ground component is one of a spring, a screw, and a conductive foam; the second grounding part is one of an elastic sheet, a screw and conductive foam.
13. The antenna of claim 12, wherein when the grounding mechanism includes a first grounding member, one end of the modulation capacitor is connected to any one of the first antenna body, the first feeding member, and the first grounding member, and the other end is connected to any one of the second antenna body and the second feeding member; or the like, or, alternatively,
when the grounding mechanism comprises a second grounding component, one end of the modulation capacitor is connected with any one of the first antenna main body and the first feeding component, and the other end of the modulation capacitor is connected with any one of the second antenna main body, the second grounding component and the second feeding component; or the like, or, alternatively,
when the grounding mechanism comprises a first grounding component and a second grounding component, one end of the modulation capacitor is connected with any one of the first antenna main body, the first feeding component and the first grounding component, and the other end of the modulation capacitor is connected with any one of the second antenna main body, the second feeding component and the second grounding component.
14. An antenna according to claim 6 or 12, wherein when the grounding mechanism comprises a first grounding member, the first grounding member is grounded through a grounding inductance, or the first grounding member is grounded through a grounding capacitance, or the first grounding member is directly grounded;
when the grounding mechanism comprises a second grounding component, the second grounding component is grounded through a grounding inductor, or the second grounding component is grounded through a grounding capacitor, or the second grounding component is directly grounded.
15. The antenna of claim 14, wherein the ground inductance is greater than 5 nh.
16. The antenna of claim 1, wherein the modulation capacitance is less than or equal to 3 pf.
17. The antenna of claim 1, wherein the first and second antenna bodies are the same shape or the first and second antenna bodies are different shapes.
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| CN202010605869.4A CN111710964A (en) | 2020-06-29 | 2020-06-29 | Antenna |
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| CN202010605869.4A CN111710964A (en) | 2020-06-29 | 2020-06-29 | Antenna |
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