CN116315743A - Antenna and communication equipment - Google Patents
Antenna and communication equipment Download PDFInfo
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- CN116315743A CN116315743A CN202310476032.8A CN202310476032A CN116315743A CN 116315743 A CN116315743 A CN 116315743A CN 202310476032 A CN202310476032 A CN 202310476032A CN 116315743 A CN116315743 A CN 116315743A
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- 239000000523 sample Substances 0.000 claims abstract description 147
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 230000010287 polarization Effects 0.000 abstract description 28
- 238000010586 diagram Methods 0.000 description 14
- 230000005855 radiation Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000004035 Cryptotaenia japonica Nutrition 0.000 description 1
- 102000007641 Trefoil Factors Human genes 0.000 description 1
- 235000015724 Trifolium pratense Nutrition 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
- H01Q15/242—Polarisation converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention relates to the technical field of antennas and discloses an antenna, which comprises a substrate, an antenna module, a switch module and a feed module, wherein the substrate is provided with a first surface and a second surface which are opposite, the first surface is provided with an antenna ground, the antenna module comprises a dielectric resonator, the switch module comprises a first selection switch and a second selection switch, the input end of the first selection switch is used for being connected with a signal source, the output end of the first selection switch is provided with an output pin, the input end of the second selection switch is provided with an input pin, and the feed module comprises a first feed probe and a second feed probe which are buried in the substrate and deviate from the midpoint of the substrate. According to the embodiment of the invention, different feed signals are transmitted through the first selection switch and the second selection switch, and the conduction of the first feed probe and the second feed probe is controlled, so that the current direction of the antenna ground is changed, the dielectric resonator radiates beams in different polarization directions, the change of the polarization direction of the antenna is realized, and the flexibility and the adaptability of the antenna are improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of antennas, in particular to an antenna and communication equipment.
Background
An antenna is a device for receiving and transmitting radio waves, which can convert radio waves into electric signals or electric signals into radio waves. The antenna is widely applied to the fields of communication, broadcasting, radar, satellite communication, navigation, remote sensing and the like.
Conventional antennas generally have only a fixed polarization direction, including both monopole and dual polarized antenna types. Single polarized antennas typically have only one polarization, such as a linear polarized antenna, a circular polarized antenna, etc., whose polarization is fixed and cannot be changed. Dual polarized antennas generally have two orthogonal polarization directions, such as vertical polarization and horizontal polarization, or left-hand circular polarization and right-hand circular polarization, etc., the polarization directions of which are also fixed and cannot be changed. Because the polarization direction of the traditional antenna is fixed, the traditional antenna cannot adapt to different environments and application requirements, and the flexibility and the adaptability are reduced.
Therefore, an antenna capable of changing the polarization direction according to different environments and application requirements is urgently needed, so that the antenna is suitable for different environments and application requirements, and flexibility and adaptability are improved.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide an antenna and communication equipment, which can change the polarization direction and improve the flexibility and adaptability.
In order to solve the technical problems, one technical scheme adopted by the embodiment of the invention is as follows: the utility model provides an antenna, the on-off device comprises a substrate, antenna module, switch module and feed module, the base plate is equipped with relative first surface and second surface, first surface has antenna ground, antenna module includes dielectric resonator, dielectric resonator sets up in the terminal surface of antenna ground, switch module includes first selector switch and second selector switch, first selector switch and second selector switch all set up in the second surface, first selector switch's input is used for being connected with the signal source, first selector switch's output is equipped with output pin, second selector switch's input is equipped with the input pin, output pin and input pin are connected and jointly form a plurality of working lines, feed module is including burying in the first feed probe and the second feed probe of base plate, first feed probe and the midpoint of second feed probe skew base plate, first feed probe and the one end of second feed probe all run through antenna ground and are connected with dielectric resonator, first feed probe and the other end of second feed probe all are connected with second selector switch's output.
Optionally, the output pin includes first output pin, and the input pin includes first input pin and second input pin, and the one end and the first output pin of first input pin are connected, and the other end and the first feed probe of first input pin are connected, and the other end and the second feed probe of second input pin are connected, and first output pin, first input pin and second input pin form a working line jointly, and the antenna ground defines a first direction, and when switch on between first output pin, first input pin and the first feed probe, the dielectric resonator radiation is along the horizontal linear polarization wave beam of first direction radiation.
Optionally, the output pin further includes a second output pin, the input pin further includes a third input pin and a fourth input pin, one end of the fourth input pin is connected with the second output pin, the other end of the fourth input pin is connected with the second feed probe, the other end of the third input pin is connected with the first feed probe, the second output pin, the third input pin and the fourth input pin jointly form a working line, a second direction opposite to the first direction is further defined on the antenna ground, and when the second output pin, the fourth input pin and the second feed probe are conducted, the dielectric resonator radiates the horizontal linear polarized beam along the second direction.
Optionally, the output pin further includes a third output pin, the input pin further includes a fifth input pin and a sixth input pin, one ends of the fifth input pin and the sixth input pin are connected to the third output pin, the other ends of the fifth input pin and the sixth input pin are connected to the first feed probe and the second feed probe, the third output pin, the fifth input pin and the sixth input pin form a working line together, when the third output pin, the fifth input pin, the sixth input pin, the first feed probe and the second feed probe are conducted, and when the feed signals of the first feed probe and the second feed probe are identical, the dielectric resonator radiates the vertical linear polarized beam.
Optionally, the output pin further includes a fourth output pin, the input pin further includes a seventh input pin and an eighth input pin, one ends of the seventh input pin and the eighth input pin are connected with the fourth output pin, the other ends of the seventh input pin and the eighth input pin are connected with the first feed probe and the second feed probe, the fourth output pin, the seventh input pin and the eighth input pin form a working line together, when the fourth output pin, the seventh input pin, the eighth input pin, the first feed probe and the second feed probe are conducted, and when the feed signal phase of the first feed probe is 90 degrees greater than that of the second feed probe, the dielectric resonator radiates the right-handed circularly polarized beam.
Optionally, the output pin further includes a fifth output pin, the input pin further includes a ninth input pin and a tenth input pin, one ends of the ninth input pin and the tenth input pin are connected with the fifth output pin, the other ends of the ninth input pin and the tenth input pin are connected with the first feed probe and the second feed probe, the fifth output pin, the ninth input pin and the tenth input pin form a working line together, when the fifth output pin, the ninth input pin, the tenth input pin, the first feed probe and the second feed probe are conducted, and when the phase of the feed signal of the first feed probe is smaller than that of the feed signal of the second feed probe by 90 degrees, the dielectric resonator radiates the left-hand circularly polarized beam.
Alternatively, the antenna ground has a diagonally symmetrical tree leaf shape.
Alternatively, the antenna ground is elliptical or circular in shape.
Optionally, the dielectric resonator is in the shape of an inverted circular truncated cone.
In order to solve the technical problems, another technical scheme adopted by the embodiment of the invention is as follows: there is provided a communication device comprising an antenna as described above.
The embodiment of the invention has the beneficial effects that: different from the situation of the prior art, the embodiment of the invention is characterized in that the output pin of the first selection switch is connected with the input pin of the second selection switch to jointly form a plurality of working circuits, different feed signals are transmitted among the working circuits, the conduction of the first feed probe and the second feed probe is controlled, the current direction of the antenna ground is changed, the dielectric resonator radiates beams in different polarization directions, the change of the polarization direction of the antenna is realized, and the flexibility and the adaptability of the antenna are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is a schematic diagram of the overall structure of an antenna according to an embodiment of the present invention;
fig. 2 is an exploded view of the overall structure of an antenna in an embodiment of the present invention;
fig. 3 is a schematic diagram of the overall structure of an antenna according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first selection switch of an antenna in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second selection switch of the antenna in the embodiment of the present invention;
FIG. 6 is a schematic diagram of the current of a dielectric resonator radiating an antenna ground radiating a horizontally linearly polarized beam in a first direction in an embodiment of the invention;
FIG. 7 is a schematic diagram of the current of a dielectric resonator radiating an antenna ground radiating a horizontally linearly polarized beam in a second direction in an embodiment of the invention;
FIG. 8 is a schematic diagram of the current to the antenna ground of a dielectric resonator radiating a vertically polarized beam in an embodiment of the invention;
FIG. 9 is a schematic diagram of the current of the antenna ground radiating a right-hand circularly polarized beam by a dielectric resonator in an embodiment of the present invention;
fig. 10 is a schematic diagram of the current of the antenna ground radiating a left-hand circularly polarized beam by a dielectric resonator in an embodiment of the present invention.
In the figure: a 1 substrate, a 10 first surface, a 11 second surface, a 12 antenna ground, a 2 antenna module, a 20 dielectric resonator, a 3 switch module, a 30 first selection switch, a 300 output pin, a 3000 first output pin, a 3001 second output pin, a 3002 third output pin, a 3003 fourth output pin, a 3004 fifth output pin, a 31 second selection switch, a 310 input pin, a 3100 first input pin, a 3101 second input pin, a 3102 third input pin, a 3103 fourth input pin, a 3104 fifth input pin, a 3105 sixth input pin, a 3106 seventh input pin, a 3107 eighth input pin, a 3108 ninth input pin, a 3109 tenth input pin, a 4 feed module, a 40 first feed probe, a 41 second feed probe.
Detailed Description
In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like as used in this specification, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the invention described below can be combined with one another as long as they do not conflict with one another.
Referring to fig. 1 to 5, an antenna includes a substrate 1, an antenna module 2, a switch module 3 and a feed module 4, wherein the substrate 1 is provided with a first surface 10 and a second surface 11 which are opposite to each other, the first surface 10 is provided with an antenna ground 12, the antenna module 2 includes a dielectric resonator 20, the dielectric resonator 20 is disposed on an end surface of the antenna ground 12, the switch module 3 includes a first selection switch 30 and a second selection switch 31, the first selection switch 30 and the second selection switch 31 are both disposed on the second surface 11, an input end of the first selection switch 30 is used for being connected with a signal source, an output end of the first selection switch 30 is provided with an output pin 300, an input end of the second selection switch 31 is provided with an input pin 310, the output pin 300 is connected with the input pin 310 and forms a plurality of working circuits together, the feed module 4 includes a first feed probe 40 and a second feed probe 41 buried in the substrate 1, one ends of the first feed probe 40 and the second feed probe 41 are both deviated from a midpoint of the substrate 1, one ends of the first feed probe 40 and the second feed probe 41 are both connected with the dielectric resonator 20 through the antenna ground 12, and the other ends of the first feed probe 40 and the second feed probe 41 are both connected with the second feed probe 31.
In one embodiment, referring to fig. 1 to 5, for the overall structure of the antenna, the following is specific: the substrate 1 is a rectangular dielectric substrate 1, the first surface 10 is positioned at the top of the substrate 1, the second surface 11 is positioned at the bottom of the substrate 1, the antenna ground 12 is covered on the first surface 10, the dielectric resonator 20 is covered on the surface of the antenna ground 12, the dielectric resonator 20 is positioned at the midpoint of the substrate 1, the first selection switch 30 is a rectangular five-choice switch, the second selection switch 31 is a rectangular ten-choice switch, the first selection switch 30 and the second selection switch 31 are covered on the second surface 11, the first selection switch 30 is conducted with the second selection switch 31, connection conduction is realized between the first selection switch 30 and the second selection switch 31 through a plurality of bonding wires and a plurality of conductive metal connectors with different shapes, a plurality of working circuits are jointly formed, the first feed probe 40 and the second feed probe 41 are conducted with the second selection switch 31 and the dielectric resonator 20, the first feed probe 40 and the second feed probe 41 are buried in a manner deviating from the midpoint of the substrate 1, namely, the first feed probe 40 and the second feed probe 41 are both deviated from the midpoint of the substrate 1, the first feed probe 40 and the second feed probe 41 are further deviated from the midpoint of the substrate 1, the first feed probe 40 and the second feed probe 20 are further deviated from the midpoint of the resonator 20, the same polarity direction of the resonant resonator is different from the resonant resonator, and the direction of the dielectric resonator 20 is changed, and the radiation direction of the dielectric resonator is changed.
The working process of the antenna is as follows: the signal source is connected to the input end of the first selection switch 30, and inputs a feeding signal to the first selection switch 30, and after the first selection switch 30 receives the feeding signal, the feeding signal is transferred to the input end of the second selection switch 31 through the output end of the first selection switch 30, and then the feeding signal is transferred to the first feeding probe 40 and the second feeding probe 41 through the output end of the second selection switch 31, so that the feeding signal is transferred to the antenna ground 12, and the dielectric resonator 20 is turned on. The signal source may input feeding signals with different phases, so that the first selection switch 30 and the second selection switch 31 transmit different feeding signals through different working lines, so that the first feeding probe 40 and the second feeding probe 41 implement different conduction and feeding, and finally, the antenna ground 12 forms currents with different directions, so that the dielectric resonator 20 radiates beams with different polarization directions, and the polarization direction of the antenna is changed.
In another embodiment, for the substrate 1, the shape of the substrate 1 may be a regular pattern such as a parallelogram, a polygon, or a circle, and when the shape of the substrate 1 is a parallelogram, a polygon, or a circle, the definition of the midpoint of the substrate 1 may be defined according to the definition of the midpoint in different regular patterns.
In another embodiment, for the dielectric resonator 20 described above, the dielectric resonator 20 covers the surface of the antenna ground 12, and the dielectric resonator 20 is not located at the midpoint of the substrate 1, when the dielectric resonator 20 is not located at the midpoint of the substrate 1, the first feeding probe 40 and the second feeding probe 41 may be offset from the midpoint of the dielectric resonator 20, that is, the feeding position of the dielectric resonator 20 is offset from the exact center of the dielectric resonator 20, so that the dielectric resonator 20 advantageously radiates beams with different polarization directions.
Further, for the first selection switch 30 and the second selection switch 31, referring to fig. 3 to 6, the output pin 300 includes a first output pin 3000, the input pin 310 includes a first input pin 3100 and a second input pin 3101, one end of the first input pin 3100 is connected to the first output pin 3000, the other end of the first input pin 3100 is connected to the first feed probe 40, the other end of the second input pin 3101 is connected to the second feed probe 41, the first output pin 3000, the first input pin 3100 and the second input pin 3101 together form a working line, the antenna ground 12 defines a first direction, and when the first output pin 3000, the first input pin 3100 and the first feed probe 40 are conducted, the dielectric resonator 20 radiates a horizontal linear polarized beam along the first direction.
In one embodiment, referring to fig. 6, a current distribution diagram of the antenna ground 12 is shown when the first feeding probe 40 is conductive and the second feeding probe 41 is non-conductive, and it can be seen that, since the first feeding probe 40 is conductive and the feeding position deviates from the midpoint of the dielectric resonator 20, the current direction of the antenna ground 12 is a linear polarized current of positive 45 degrees, i.e. the first direction is positive 45 degrees at this time, so that the dielectric resonator 20 radiates a positive 45-degree horizontal linear polarized beam.
Further, for the first selection switch 30 and the second selection switch 31, referring to fig. 3 to 7, the output pin 300 further includes a second output pin 3001, the input pin 310 further includes a third input pin 3102 and a fourth input pin 3103, one end of the fourth input pin 3103 is connected to the second output pin 3001, the other end of the fourth input pin 3103 is connected to the second feeding probe 41, the other end of the third input pin 3102 is connected to the first feeding probe 40, the second output pin 3001, the third input pin 3102 and the fourth input pin 3103 together form a working line, the antenna ground 12 further defines a second direction opposite to the first direction, and the dielectric resonator 20 radiates a horizontally linearly polarized beam in the second direction when the second output pin 3001, the fourth input pin 3103 and the second feeding probe 41 are turned on.
In an embodiment, referring to fig. 7, a current distribution diagram of the antenna ground 12 is shown when the first feeding probe 40 is not conductive and the second feeding probe 41 is conductive, and it can be seen that, since the second feeding probe 41 is conductive and the feeding position deviates from the midpoint of the dielectric resonator 20, the current direction of the antenna ground 12 is a linear polarization current of minus 45 degrees, i.e. the second direction is minus 45 degrees at this time, so that the dielectric resonator 20 radiates a horizontal linear polarization beam of minus 45 degrees.
Further, for the first selection switch 30 and the second selection switch 31, referring to fig. 3 to 8, the output pin 300 further includes a third output pin 3002, the input pin 310 further includes a fifth input pin 3104 and a sixth input pin 3105, one ends of the fifth input pin 3104 and the sixth input pin 3105 are connected to the third output pin 3002, the other ends of the fifth input pin 3104 and the sixth input pin 3105 are connected to the first feed probe 40 and the second feed probe 41, respectively, the third output pin 3002, the fifth input pin 3104 and the sixth input pin 3105 form a working line together, when the third output pin 3002, the fifth input pin 3104, the sixth input pin 3105, the first feed probe 40 and the second feed probe 41 are conducted, and the feed signals of the first feed probe 40 and the second feed probe 41 are identical, the dielectric resonator 20 radiates a vertical linear polarization beam.
In one embodiment, referring to fig. 8, the first feeding probe 40 and the second feeding probe 41 are both turned on, and the feeding signals of the first feeding probe 40 and the second feeding probe 41 are the same, and the current distribution diagram formed by the antenna ground 12 is shown, since the first feeding probe 40 and the second feeding probe 41 are both turned on and the feeding position is deviated from the midpoint of the dielectric resonator 20, the current direction of the antenna ground 12 is a vertical linear polarization current, and the dielectric resonator 20 radiates a vertical linear polarization beam.
Further, for the first selection switch 30 and the second selection switch 31 described above, referring to fig. 3 to 9, the output pin 300 further includes a fourth output pin 3003, the input pin 310 further includes a seventh input pin 3106 and an eighth input pin 3107, one ends of the seventh input pin 3106 and the eighth input pin 3107 are connected to the fourth output pin 3003, the other ends of the seventh input pin 3106 and the eighth input pin 3107 are connected to the first feeding probe 40 and the second feeding probe 41, respectively, the fourth output pin 3003, the seventh input pin 3106 and the eighth input pin 3107 form a working line together, and when the fourth output pin 3003, the seventh input pin 3106, the eighth input pin 3107, the first feeding probe 40 and the second feeding probe 41 are conducted, and the first feeding probe 40 is 90 degrees greater than the feeding signal phase of the second feeding probe 41, the dielectric resonator 20 radiates a right-handed circularly polarized beam.
In one embodiment, referring to fig. 9, when the first feeding probe 40 and the second feeding probe 41 are both turned on and the feeding signal phase of the first feeding probe 40 is 90 degrees greater than the feeding signal phase of the second feeding probe 41, the current distribution diagram formed by the antenna ground 12 is shown, and as the first feeding probe 40 and the second feeding probe 41 are both turned on and the feeding position deviates from the midpoint of the dielectric resonator 20, the current direction of the antenna ground 12 is anticlockwise rotated to form a right-hand circularly polarized current, so that the dielectric resonator 20 radiates a right-hand circularly polarized beam.
Further, for the first selection switch 30 and the second selection switch 31 described above, referring to fig. 3 to 10, the output pin 300 further includes a fifth output pin 3004, the input pin 310 further includes a ninth input pin 3108 and a tenth input pin 3109, one ends of the ninth input pin 3108 and the tenth input pin 3109 are connected to the fifth output pin 3004, the other ends of the ninth input pin 3108 and the tenth input pin 3109 are connected to the first feeding probe 40 and the second feeding probe 41, respectively, the fifth output pin 3004, the ninth input pin 3108 and the tenth input pin 3109 form a working line together, and when the fifth output pin 3004, the ninth input pin 3108, the tenth input pin 3109, the first feeding probe 40 and the second feeding probe 41 are conducted, and the first feeding probe 40 is smaller than the feeding signal phase of the second feeding probe 41 by 90 degrees, the dielectric resonator 20 radiates a left-hand circularly polarized beam.
In one embodiment, referring to fig. 10, when the first feeding probe 40 and the second feeding probe 41 are both turned on and the feeding signal phase of the first feeding probe 40 is smaller than the feeding signal phase of the second feeding probe 41 by 90 degrees, the current distribution diagram formed by the antenna ground 12 is shown, and as the first feeding probe 40 and the second feeding probe 41 are both turned on and the feeding position deviates from the midpoint of the dielectric resonator 20, the current direction of the antenna ground 12 is clockwise rotated to form a left-hand circularly polarized current, so that the dielectric resonator 20 radiates a left-hand circularly polarized beam.
Further, for the antenna ground 12, referring to fig. 1 and 2, the antenna ground 12 is in a shape of a tree leaf that is diagonally symmetrical. By arranging the antenna ground 12 in a diagonally symmetrical trefoil shape, when the dielectric resonator 20 radiates a right-hand circularly polarized beam or a left-hand circularly polarized beam, it is advantageous to increase the axial ratio bandwidth of the dielectric resonator 20, i.e., to increase the axial ratio bandwidth of the right-hand circularly polarized antenna or the left-hand circularly polarized antenna.
In another embodiment, the antenna ground 12 is elliptical or circular in shape. By setting the shape of the antenna ground 12 to be elliptical or circular, it is also advantageous to increase the axial ratio bandwidth of the dielectric resonator 20, i.e., to increase the axial ratio bandwidth of the right-hand circularly polarized antenna or the left-hand circularly polarized antenna, when the dielectric resonator 20 radiates a right-hand circularly polarized beam or a left-hand circularly polarized beam.
Further, for the dielectric resonator 20 described above, referring to fig. 1 and 2, the dielectric resonator 20 is shaped as an inverted truncated cone. By setting the shape of the dielectric resonator 20 to be an inverted truncated cone, compared with the conventional square dielectric resonator 20, the volume and weight can be reduced, and the dielectric resonator 20 can radiate beams with different polarization directions, and in addition, the bandwidth and frequency stability of the antenna can be improved.
According to the embodiment of the invention, the output pin 300 of the first selection switch 30 and the input pin 310 of the second selection switch 31 are connected and jointly form a plurality of working circuits, different feed signals are transmitted among the working circuits, the conduction of the first feed probe 40 and the second feed probe 41 is controlled, the current direction of the antenna ground 12 is changed, the dielectric resonator 20 radiates beams in different polarization directions, the change of the polarization direction of the antenna is realized, and the flexibility and the adaptability of the antenna are improved.
The present invention further provides an embodiment of a communication device, where the communication device includes the antenna, and the specific structure and function of the antenna may refer to the above embodiment, which is not described herein again.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. An antenna, comprising:
a substrate provided with a first surface and a second surface which are opposite, wherein the first surface is provided with an antenna ground;
the antenna module comprises a dielectric resonator, wherein the dielectric resonator is arranged on the end face of the antenna ground;
the switch module comprises a first selection switch and a second selection switch, wherein the first selection switch and the second selection switch are arranged on the second surface, the input end of the first selection switch is used for being connected with a signal source, the output end of the first selection switch is provided with an output pin, the input end of the second selection switch is provided with an input pin, and the output pin and the input pin are connected together to form a plurality of working circuits;
the feed module comprises a first feed probe and a second feed probe which are buried in the substrate, the first feed probe and the second feed probe deviate from the midpoint of the substrate, one ends of the first feed probe and the second feed probe penetrate through the antenna to be connected with the dielectric resonator, and the other ends of the first feed probe and the second feed probe are connected with the output end of the second selection switch.
2. The antenna of claim 1, wherein the output pin comprises a first output pin, and the input pin comprises a first input pin and a second input pin;
one end of the first input pin is connected with the first output pin, the other end of the first input pin is connected with the first feed probe, and the other end of the second input pin is connected with the second feed probe;
the first output pin, the first input pin and the second input pin together form a working line, the antenna ground is defined with a first direction, and when the first output pin, the first input pin and the first feed probe are conducted, the dielectric resonator radiates a horizontal linear polarized wave beam along the first direction.
3. The antenna of claim 1, wherein the output pins further comprise a second output pin, the input pins further comprising a third input pin and a fourth input pin;
one end of the fourth input pin is connected with the second output pin, the other end of the fourth input pin is connected with the second feed probe, and the other end of the third input pin is connected with the first feed probe;
the second output pin, the third input pin and the fourth input pin together form a working line, the antenna ground is further defined with a second direction opposite to the first direction, and when the second output pin, the fourth input pin and the second feed probe are conducted, the dielectric resonator radiates a horizontal linearly polarized beam along the second direction.
4. The antenna of claim 1, wherein the output pins further comprise a third output pin, the input pins further comprising a fifth input pin and a sixth input pin;
one ends of the fifth input pin and the sixth input pin are connected with the third output pin, and the other ends of the fifth input pin and the sixth input pin are respectively connected with the first feed probe and the second feed probe;
the third output pin, the fifth input pin and the sixth input pin form a working circuit together, when the third output pin, the fifth input pin, the sixth input pin, the first feed probe and the second feed probe are conducted, and when the feed signals of the first feed probe and the second feed probe are identical, the dielectric resonator radiates a vertical line polarized wave beam.
5. The antenna of claim 1, wherein the output pins further comprise a fourth output pin, the input pins further comprising a seventh input pin and an eighth input pin;
one ends of the seventh input pin and the eighth input pin are connected with the fourth output pin, and the other ends of the seventh input pin and the eighth input pin are respectively connected with the first feed probe and the second feed probe;
the fourth output pin, the seventh input pin and the eighth input pin together form a working line, and when the fourth output pin, the seventh input pin, the eighth input pin, the first feed probe and the second feed probe are conducted, and the feed signal phase of the first feed probe is 90 degrees greater than that of the second feed probe, the dielectric resonator radiates right-hand circularly polarized beams.
6. The antenna of claim 1, wherein the output pins further comprise a fifth output pin, the input pins further comprising a ninth input pin and a tenth input pin;
one ends of the ninth input pin and the tenth input pin are connected with the fifth output pin, and the other ends of the ninth input pin and the tenth input pin are respectively connected with the first feed probe and the second feed probe;
the fifth output pin, the ninth input pin and the tenth input pin together form a working line, and when the fifth output pin, the ninth input pin, the tenth input pin, the first feed probe and the second feed probe are conducted, and the phase of the feed signal of the first feed probe is smaller than that of the feed signal of the second feed probe by 90 degrees, the dielectric resonator radiates a left-hand circularly polarized beam.
7. The antenna of claim 1, wherein the antenna ground is in the shape of a diagonally symmetrical tree leaf.
8. The antenna of claim 1, wherein the antenna ground is elliptical or circular in shape.
9. The antenna of claim 1, wherein the dielectric resonator is in the shape of a reverse truncated cone.
10. A communication device comprising an antenna according to any of claims 1-9.
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CN202310476032.8A CN116315743A (en) | 2023-04-25 | 2023-04-25 | Antenna and communication equipment |
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CN202310476032.8A CN116315743A (en) | 2023-04-25 | 2023-04-25 | Antenna and communication equipment |
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