CN115084823A - Antenna structure and equipment - Google Patents
Antenna structure and equipment Download PDFInfo
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- CN115084823A CN115084823A CN202210556858.0A CN202210556858A CN115084823A CN 115084823 A CN115084823 A CN 115084823A CN 202210556858 A CN202210556858 A CN 202210556858A CN 115084823 A CN115084823 A CN 115084823A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
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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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
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Abstract
The invention discloses an antenna structure, comprising: a dipole section; a feeder line segment, an input end of the feeder line segment being connected to the dipole segment; the input end of the control folding section is connected with the output end of the feeder line; wherein the control folding section is provided with a switch; and changing the working length of the control folding section by switching the working state of the switch to obtain a plurality of control folding sections, wherein the control folding sections of different types control the antenna structure to be in different radiation modes. According to the technical scheme, the control folding section is provided with the switches, wherein the working states of the switches can be switched according to actual needs, so that the antenna structure can be controlled to be in different radiation modes, including a horizontal weak radiation mode, a horizontal strong radiation mode and an upward-inclination strong radiation mode; and thus a change in radiation pattern, gain, and beam direction can be achieved.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to an antenna structure and equipment.
Background
The radio frequency signal power output by the radio transmitter is transmitted to the antenna through a feeder (cable) and radiated out by the antenna in the form of electromagnetic waves. After the electromagnetic wave reaches the receiving location, it is passed on by the antenna (receiving only a small fraction of the power) and fed to the radio receiver via the feeder. The antenna has various varieties, can be used under different conditions of different frequencies, different purposes, different occasions, different requirements and the like, has extremely wide application range, and is greatly convenient for the life of people.
However, the conventional antenna has the following problems, which affect the performance of the antenna, specifically:
1. the inclination angle/gain of the antenna wave beam is not adjustable, and the complex indoor communication environment is difficult to be considered;
2. the functions of inclination angle adjustment and gain adjustment cannot be realized in the same structure;
3. large size and high cost.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present invention to provide an antenna structure and an apparatus.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
an antenna structure comprising:
a dipole section;
a feed line segment, an input end of the feed line segment being connected to the dipole segment;
the input end of the control folding section is connected with the output end of the feeder line; wherein the control folding section is provided with a switch; and changing the working length of the control folding section by switching the working state of the switch to obtain a plurality of control folding sections, wherein the control folding sections of different types control the antenna structure to be in different radiation modes.
Optionally, the control folding segment comprises a first sub-control folding segment;
the first sub-control folding section is provided with a first switch and a second switch, and the working state of the first switch and the working state of the second switch are switched to change the first sub-working length of the first sub-control folding section so as to obtain multiple kinds of the first sub-control folding sections.
Optionally, the control folding segment further comprises a second sub-control folding segment;
the second sub-control folding section and the first sub-control folding section are symmetrically arranged.
Optionally, when the first switch is in an off state, a first sub-control folding segment is obtained;
obtaining a first type of control folding section based on the first type of first sub-control folding section;
the first control fold controls the antenna structure in a first radiation mode.
Optionally, when the first switch is in an on state and the second switch is in an off state, a second type of first sub-control folding segment is obtained;
obtaining a second type of control folding section based on the second type of first sub-control folding section;
the second control folding segment controls the antenna structure to be in a second radiation mode.
Optionally, the working lengths of the first control folding section and the second control folding section are both smaller than the wavelength of the electromagnetic wave.
Optionally, when the first switch and the second switch are in a conducting state, a third first sub-control folding segment is obtained;
obtaining a third control folding segment based on the third first sub-control folding segment;
the third control fold controls the antenna structure in a third radiation mode.
Optionally, the working length of the third control folding segment is greater than twice the wavelength of the electromagnetic wave.
Optionally, the antenna structure includes a first working surface and a second working surface, the first sub-control folding section is disposed on the first working surface, and the second sub-control folding section is disposed on the second working surface.
Optionally, the feeder line segment includes a first sub-feeder line segment and a second sub-feeder line segment;
the first sub-feeder line segment is arranged on the first working surface, the input end of the first sub-feeder line segment is connected with the dipole segment, and the output end of the first sub-feeder line segment is connected with the input end of the first sub-control folding segment;
the second sub-feeder line segment is arranged on the second working surface, the input end of the second sub-feeder line segment is connected with the dipole segment, and the output end of the second sub-feeder line segment is connected with the input end of the second sub-control folding segment.
Embodiments of the present invention also provide an electronic device including the antenna structure described above. The embodiment of the invention has the following technical effects:
according to the technical scheme, 1) the control folding section is provided with a plurality of switches, wherein the working states of the switches can be switched according to actual needs, so that the antenna structure can be controlled to be in different radiation modes, including a horizontal weak radiation mode, a horizontal strong radiation mode and an upward-inclination strong radiation mode; and thus a change in radiation pattern, gain, and beam direction can be achieved.
2) Under different radiation modes, the antenna structure can realize omnidirectional radiation of an azimuth plane.
3) The antenna has the advantages of simple structure, small size, low cost, wide application range and the like, and can be applied to most household communication equipment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of an antenna structure according to an embodiment of the present invention;
fig. 2 is an example of an antenna structure provided by an embodiment of the present invention;
fig. 3 is another example of an antenna structure provided by an embodiment of the present invention;
FIG. 4 is a horizontal plane radiation pattern provided by an embodiment of the present invention;
FIG. 5 is a pitch plane radiation pattern provided by an embodiment of the present invention;
FIG. 6 is a graph of radiation efficiency provided by an embodiment of the present invention;
in the figure: 100-a first working surface; 101-a first sub-control folding segment; 102-a first switch; 103-a second switch; 104-a first sub-feeder segment; 105-dipole upper half-arm; 106-metallized vias; 107-dipole lower arm; 200-a second working surface; 201-a second sub-control folding segment; 202-a third switch; 203-a fourth switch; 204-a second sub-feeder-segment.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
To facilitate understanding of the embodiments by those skilled in the art, some terms are explained:
(1) PCB: printed Circuit Board.
As shown in fig. 1, an embodiment of the present invention provides an antenna structure, including:
a dipole section;
a feeder line segment, an input end of the feeder line segment being connected to the dipole segment;
the input end of the control folding section is connected with the output end of the feeder line; wherein the control folding section is provided with a switch; and changing the working length of the control folding section by switching the working state of the switch to obtain a plurality of control folding sections, wherein the control folding sections of different types control the antenna structure to be in different radiation modes.
According to the embodiment of the invention, the antenna structure is printed on the double-sided dielectric substrate; for example: the embodiment of the invention takes the PCB as the dielectric substrate, wherein one surface of the double-sided PCB is taken as the first working surface 100 of the antenna structure, and the other surface of the double-sided PCB is taken as the second working surface 200 of the antenna structure.
In an embodiment of the invention, the control folding section is provided with a sheath, for example: can be a copper sheet; the folding control section is specifically set to be a folded electric signal transmission line structure, and is cut off at the output end of the folding control section, that is, in the embodiment of the invention, the output end of the folding control section is set to be an open-circuit structure; in addition, the setting of the folding section is controlled to be 90 degrees, so that the size of the antenna structure is further reduced; in addition, the bending angle of the antenna structure can be set to other angles according to requirements.
In a practical application scenario, total reflection or a small amount of loss may occur at the output end of the folding section, and the working length of the folding section may affect the point phase state of the total reflection.
Further, in an embodiment of the present invention, the dipole section comprises an upper dipole half-arm 105 and a lower dipole half-arm 107; an antenna structure feed point is arranged between the dipole upper half-arm 105 and the dipole lower half-arm 107; the antenna structure is connected with an external feeder line based on the feeding point of the antenna structure, and mutual energy transmission of the antenna structure and the external feeder line is achieved.
Further, in the embodiment of the present invention, the feeding point of the antenna structure is disposed at the middle position between the upper dipole half-arm 105 and the lower dipole half-arm 107, and the inner core of the coaxial line of the external feeding line is connected to the center of the upper dipole half-arm 105; the coaxial outer conductor is connected to the center of the lower dipole half 107.
Further, the switch according to the embodiment of the present invention may specifically be a light guide switch, a touch switch, or other switches that can implement the embodiment of the present invention according to actual needs; however, since the specific structure of the switch is not within the protection scope of the present invention, the detailed description of the embodiments of the present invention is omitted.
According to the embodiment of the invention, a plurality of switches are arranged on the control folding section, wherein the switch to be switched to the working state can be selected according to actual needs; for example, two switches are in a group, and the group of switches is switched from the on working state to the off working state; or switching a group of switches from the off working state to the on working state; when the working state of a group of switches on the folding section is controlled to change, the current working length of the folding section can be controlled to change, and then the antenna structure is controlled to be switched to another radiation mode from the current radiation mode, so that the technical effect of changing the radiation mode based on the change of the working length of the folding section is achieved.
In an alternative embodiment of the present invention, the control folding segment further comprises a second sub-control folding segment 201;
the second sub-control folding segment 101 is arranged symmetrically to the first sub-control folding segment 201.
In an alternative embodiment of the present invention, the antenna structure includes a first working surface 100 and a second working surface 200, the first sub-control folding segment 101 is disposed on the first working surface 100, and the second sub-control folding segment 201 is disposed on the second working surface 200.
In an alternative embodiment of the present invention, the feeder line segment includes a first sub-feeder line segment 104 and a second sub-feeder line segment 204;
the first sub-feeder line segment 104 is arranged on the first working plane 100, the input end of the first sub-feeder line segment 104 is connected with the dipole segment, and the output end of the first sub-feeder line segment 104 is connected with the input end of the first sub-control folded segment 101;
the second sub-feeding line segment 204 is disposed on the second working plane 200, an input end of the second sub-feeding line segment 204 is connected to the dipole segment, and an output end of the second sub-feeding line segment 204 is connected to an input end of the second sub-control folded segment 201.
In an alternative embodiment of the present invention, the lengths of the first sub-feeding line segment 104 and the second sub-feeding line segment 204 are both half of the wavelength of the electromagnetic wave, so as to prevent the first sub-feeding line segment 104 and the second sub-feeding line segment 204 from interfering with the transmission of the electrical signal.
In an alternative embodiment of the present invention, the input end of the first sub-feeder segment 104 is connected to the center of the upper dipole half-arm 105, and the input end of the second sub-feeder segment 204 is connected to the lower dipole half-arm 107 by disposing the metalized via 106 at the center of the lower dipole half-arm 107.
In an alternative embodiment of the present invention, the dipoles may be disposed on the first working surface 100 and the second working surface 200; for example: the upper dipole half-arm 105 is disposed on the first working surface 100, the lower dipole half-arm 107 is disposed on the second working surface 200, and the antenna feeding point is disposed in a via structure, so that power is supplied to the upper dipole half-arm 105 and the lower dipole half-arm 107 simultaneously based on the antenna feeding point.
In an alternative embodiment of the present invention, the control folding segment comprises a first sub-control folding segment 101;
the first sub-control folding section 101 is provided with a first switch 102 and a second switch 103, and the first sub-working length of the first sub-control folding section 101 is changed by switching the working states of the first switch 102 and the second switch 103, so that various first sub-control folding sections 101 are obtained.
Specifically, the first sub-control folding segment 101 may include a first portion, a second portion, and a third portion;
the first switch 102 is arranged between the first part and the second part, an input end of the first switch 102 is connected with an output end of the first part, and an output end of the first switch 102 is connected with an input end of the second part;
when the first switch 102 is in a conducting working state, the first part and the second part are connected; when the first switch 102 is in the off working state, the first part and the second part are turned off, and at this time, the actual length of the first sub-working length is the length of the first part.
The second switch 103 is arranged between the second part and the third part, the input end of the second switch 103 is connected with the output end of the second part, and the output end of the second switch 103 is connected with the input end of the third part;
when the second switch 103 is in a conducting working state, the second part and the third part are connected; when the second switch 103 is in the off operating state, the second part and the third part are turned off.
The embodiment of the invention realizes that the first sub-working length of the first sub-control folding segment 101 is changed based on the change of the working states of the first switch 102 and the second switch 103 based on the connection relation of the first part, the second part and the connection or disconnection between the second part and the third part.
In an alternative embodiment of the present invention, the control folding segment further comprises a second sub-control folding segment 201;
the second sub-control folding section 201 is provided with a third switch 202 and a fourth switch 203, and by switching the working states of the third switch 202 and the fourth switch 203, the second sub-working length of the second sub-control folding section 201 is changed, so that a plurality of types of second sub-control folding sections 201 are obtained.
Further, in the embodiment of the present invention, the first sub-control folding section 101 and the second sub-control folding section 201 are respectively disposed on two different working surfaces of one dielectric substrate, which is beneficial to reducing the size of the antenna structure and reducing the cost.
In the embodiment of the present invention, the second sub-control folding segment 201 includes a fourth portion, a fifth portion, and a sixth portion;
wherein the third switch 202 is disposed between the fourth portion and the fifth portion; the input end of the third switch 202 is connected with the output end of the fourth part; an output terminal of the third switch 202 is connected to an input terminal of the fifth section;
when the third switch 202 is in a conducting working state, the fourth part is connected with the fifth part; when the third switch 202 is in the off working state, the fourth part is disconnected from the fifth part, and at this time, the actual length of the second sub working length is the length of the fourth part;
the fourth switch 203 is disposed between the fifth section and the sixth section; the input end of the fourth switch 203 is connected with the output end of the fifth part, and the output end of the fourth switch 203 is connected with the input end of the sixth part;
when the fourth switch 203 is in a conducting working state, the fifth part is connected with the sixth part; when the fourth switch 203 is in the off working state, the fifth part is disconnected from the sixth part;
in the embodiment of the present invention, the fourth part, the fifth part, and the connection or disconnection between the fifth part and the sixth part are controlled by controlling the operating states of the fourth switch 203 and the third switch 202, and further, the second sub-operating length of the second sub-control folding segment 201 is controlled by switching the operating states of the fourth switch 203 and the third switch 202.
Further, in the embodiment of the present invention, the first portion and the fourth portion have the same length; the second part and the fifth part have the same length; the third part and the sixth part have the same length and are used for realizing accurate control and control of various working lengths of the folding section.
As shown in fig. 2, according to an alternative embodiment of the present invention, when the first switch 102 and the third switch 202 are in the off state, the first sub-controlled folding segment 101 and the first sub-controlled folding segment 201 are obtained;
obtaining a first type of control folding section based on the first type of first sub-control folding section 101 and the first type of second sub-control folding section 201;
the first control fold controls the antenna structure to be in a first radiation mode.
In the embodiment of the present invention, when the first switch 102 and the third switch 202 are in the off working state, the actual length of the first sub-control folding segment 101 is the length of the first portion; the actual length of the first and second sub-control folding segments 201 is the length of the fourth portion.
Wherein the first radiation mode is a horizontal strong radiation mode.
As shown in fig. 3, according to an alternative embodiment of the present invention, when the first switch 102 and the third switch 202 are in the on state and the second switch 103 and the fourth switch 203 are in the off state, the second first sub-controlled folding segment 101 and the second sub-controlled folding segment 201 are obtained;
obtaining a second type of control folding section based on the second type of first sub-control folding section 101 and the second type of second sub-control folding section 201;
the second control folding segment controls the antenna structure to be in the second radiation mode.
In the embodiment of the present invention, when the first switch 102 and the third switch 202 are in the on state, the actual length of the second-type first sub-control folding segment 101 is the sum of the lengths of the first portion and the second portion; the actual length of the second sub-control folding segment 201 is the sum of the lengths of the fourth and fifth portions.
Wherein the second radiation mode is a horizontal weak radiation mode.
In an alternative embodiment of the present invention, the working lengths of the first control folding section and the second control folding section are both smaller than the wavelength of the electromagnetic wave.
Specifically, for the first control folding segment, in the embodiment of the present invention, the lengths of the first portion and the fourth portion are both half of the wavelength of the electromagnetic wave;
in practical applications, when the working length of the first control folded section is half of the wavelength of the electromagnetic wave, based on the above embodiment, it can be known that the lengths of the first sub-feeder-line segment 104 and the second sub-feeder-line segment 204 are also half of the wavelength of the electromagnetic wave, so that the phases of the reflected wave and the incident wave of the electrical signal at the output end of the control folded section are the same, and the current direction of the reflected wave signal after passing through the first sub-feeder-line segment 104 with the wavelength of 1/2 is the same as the current direction of the upper dipole half-arm 105; after the reflected wave signal passes through the first sub-feeder segment 104 with the wavelength of 1/2, the current direction is consistent with the current direction of the lower arm 107 of the dipole, so that neither the feeder segment nor the first control folding segment has influence on the electric signal, and therefore, when the length of the first control folding segment is 1/2 of the wavelength of the electromagnetic wave, the antenna structure is equivalent to a common dipole and is in a horizontal strong radiation mode; as shown in fig. 4, in the horizontal strong radiation mode, the maximum gain direction of the antenna structure is in the horizontal plane, and the maximum gain is about 2.5 dBi.
It should be noted that, in general, the phase of an electrical signal is not changed when the electrical signal is transmitted through the wavelength of an electromagnetic wave; the electrical signals are opposite in phase when transmitted through 1/2 wavelengths of electromagnetic waves; however, due to the embodiment of the present invention, there is total reflection, so that 1/2 wavelengths of electromagnetic waves are transmitted by the electrical signal, and 1/2 wavelengths of electromagnetic waves are transmitted after total reflection, and therefore, when the working length of the first control folded section is half of the wavelength of the electromagnetic waves, the antenna structure is in a horizontal strong radiation mode.
Further, for the second control folding segment, in the embodiment of the present invention, the lengths of the first portion and the fourth portion are both half of the wavelength of the electromagnetic wave; 1/4 where the lengths of the second and fifth portions are both the wavelength of the electromagnetic wave; the second first sub working length corresponding to the second first sub-control folding segment 101 and the second sub-working length corresponding to the second sub-control folding segment 201 are both 3/4 of the wavelength of the electromagnetic wave, that is, the working length of the second control folding segment is 3/4 of the wavelength of the electromagnetic wave.
In practical applications, when the working length of the second controlled folding segment is 3/4 of the wavelength of the electromagnetic wave, based on the above embodiment, it can be seen that the lengths of the first sub-feeder segment 104 and the second sub-feeder segment 204 are both half of the wavelength of the electromagnetic wave, so that the phase of the reflected wave of the electrical signal at the output end of the controlled folding segment is opposite to that of the incident wave, and the direction of the current of the reflected wave signal after passing through the first sub-feeder segment 104 with 3/4 wavelength is opposite to that of the current of the upper half-arm 105 of the dipole; after the reflected wave signal passes through the first sub-feeder segment 104 with the wavelength of 3/4, the current direction is opposite to the current direction of the lower half arm 107 of the dipole, so that the energy of the electric signal is cancelled during the transmission process in the antenna structure, and a standing wave state is presented, therefore, when the length of the first control folding segment is 3/4 of the wavelength of the electromagnetic wave, the radiation efficiency of the antenna structure is reduced, and at this time, the antenna structure is in a horizontal weak radiation state; as shown in fig. 4, in the horizontal weak radiation mode, the maximum gain direction of the antenna structure is in the horizontal plane, and the maximum gain is about-4 dBi.
It should be noted that, in general, the phase of an electrical signal is not changed when the electrical signal is transmitted through the wavelength of an electromagnetic wave; the electrical signals are opposite in phase when transmitted through 1/2 wavelengths of electromagnetic waves; however, due to the embodiment of the present invention, there is total reflection, so that 1/4 wavelengths of electromagnetic waves are transmitted in the electrical signal, and 1/4 wavelengths of electromagnetic waves are transmitted after the total reflection, so that when the working length of the second control folding segment is 1/4 of the wavelength of the electromagnetic waves, the antenna structure can be in the horizontal weak radiation mode; however, when 1/4, which is the second type of wavelength of the electromagnetic wave controlling the folded portion, is used, the controlled folded portion is too small, and the performance is unstable; therefore, in the embodiment of the present invention, when the antenna structure is in the horizontal weak radiation mode, in order to ensure that the antenna structure can stably operate in the horizontal weak radiation mode, the second control folded section is used to extend the wavelength of the electromagnetic wave by 1/2 on the basis of 1/4, so that the antenna structure can still be in the horizontal weak radiation mode while ensuring that the antenna structure stably operates.
As shown in fig. 1, according to an alternative embodiment of the present invention, when the first switch 102, the second switch 103, the third switch 202 and the fourth switch 203 are in the on state, a third first sub-controlled folding segment 101 and a third second sub-controlled folding segment 201 are obtained;
obtaining a third control folding segment based on the third first sub-control folding segment 101 and the third second sub-control folding segment 201;
the third control fold controls the antenna structure to be in a third radiation mode.
In the embodiment of the present invention, when the first switch 102, the second switch 103, the third switch 202, and the fourth switch 203 are all in the on state, a third first sub-working length corresponding to the third first sub-control folding segment 101 and a third second sub-working length corresponding to the third second sub-control folding segment 201 are the sum of the first portion, the second portion, and the third portion.
Wherein the third radiation mode is an upward-gradient radiation mode.
In an alternative embodiment of the present invention, the working length of the third control folding segment is greater than twice the wavelength of the electromagnetic wave.
Specifically, when the working length of the third control folding segment is greater than twice the wavelength of the electromagnetic wave, that is, the third first sub-working length and the third second sub-working length are both greater than twice the wavelength;
the electric signal entering the third first sub-control folded section 101 or the third second sub-control folded section 201 is used to control the folded section path to lose most of energy, so that the reflected wave signal is weak and cannot affect the current on the first sub-feeder line segment 104 or the second sub-feeder line segment 204 and the current on the dipole any more, and the first sub-feeder line segment 104 and the second sub-feeder line are close to the upper dipole arm 105, so that the induced currents cancel each other, the current on the upper dipole arm 105 is weakened, and the state that the energy of the upper dipole arm 105 is weak and the energy of the lower dipole arm 107 is strong is presented, at this time, the antenna structure is in an upward-tilted radiation mode; as shown in fig. 5, in the tilted-up strong radiation mode, the maximum gain direction of the antenna structure is around a 45 ° angle of tilt-up, and the maximum gain is around 2.4 dBi.
In general, if a current flows through a conductor, an induced current in a direction opposite to the current flowing through the conductor is also generated in another conductor adjacent to the conductor; in the embodiment of the present invention, in the area of the feeder line, if the current direction of the dipole upper half-arm 105 is positive, the current direction of the first sub-feeder line segment 104 is also positive, and the induced current direction of the second sub-feeder line segment 204 is negative; then under the influence of the induced current in the opposite direction, part of the electric field is cancelled out and is in a weak radiation state, and the dipole upper half-arm 105 is still in a strong radiation state, so that the whole antenna structure is in an upward-inclined strong radiation mode.
In the embodiments of the present invention, as shown in fig. 4 and 5, the antenna structure can realize omnidirectional radiation in azimuth plane under different radiation modes.
In addition, in the embodiment of the present invention, the antenna structure operates in a Frequency band of 2.4 to 2.5GHz, as shown in fig. 6, where the abscissa of fig. 6 is Return Loss (Return Loss), the ordinate is Frequency (Frequency), and the Return Loss is less than-10 dB, so that the antenna structure provided by the embodiment of the present invention can obtain better matching and radiation efficiency.
Embodiments of the present invention also provide an electronic device including the above antenna structure.
In an actual application scenario, the antenna structure provided by the embodiment of the present invention may be installed on some household wireless communication devices, that is, the antenna structure provided by the embodiment of the present invention may be deployed on some indoor intelligent devices.
In addition, other configurations and functions of the apparatus according to the embodiment of the present invention are known to those skilled in the art, and are not described herein for reducing redundancy.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. An antenna structure, comprising:
a dipole section;
a feed line segment, an input end of the feed line segment being connected to the dipole segment;
the input end of the control folding section is connected with the output end of the feeder line; wherein the control folding section is provided with a switch; and changing the working length of the control folding section by switching the working state of the switch to obtain a plurality of control folding sections, wherein the control folding sections of different types control the antenna structure to be in different radiation modes.
2. The antenna structure according to claim 1, characterized in that the control folding segment comprises a first sub-control folding segment;
the first sub-control folding section is provided with a first switch and a second switch, and the working state of the first switch and the working state of the second switch are switched to change the first sub-working length of the first sub-control folding section so as to obtain multiple kinds of the first sub-control folding sections.
3. The antenna structure of claim 2, wherein the control folding segment further comprises a second sub-control folding segment;
the second sub-control folding section and the first sub-control folding section are symmetrically arranged.
4. An antenna structure according to claim 3, characterized in that when said first switch is in the off-state, a first sub-control folding segment of a first kind is obtained;
obtaining a first type of control folding section based on the first type of first sub-control folding section;
the first control folding section controls the antenna structure to be in a first radiation mode.
5. The antenna structure according to claim 3, characterized in that when the first switch is in the on-state and the second switch is in the off-state, a second first sub-control folding segment is obtained;
obtaining a second type of control folding section based on the second type of first sub-control folding section;
the second control folding segment controls the antenna structure to be in a second radiation mode.
6. The antenna structure according to claim 4, characterized in that the working length of the first and second control folds are smaller than the wavelength of the electromagnetic wave.
7. The antenna structure according to claim 3, characterized in that when the first switch and the second switch are in a conducting state, a third first sub-control folded section is obtained;
obtaining a third control folding segment based on the third first sub-control folding segment;
the third control fold controls the antenna structure in a third radiation mode.
8. The antenna structure according to claim 7, characterized in that the working length of the third control fold is greater than twice the wavelength of the electromagnetic waves.
9. The antenna structure according to claim 3, characterized in that the antenna structure comprises a first working face and a second working face, the first sub-control fold being arranged at the first working face and the second sub-control fold being arranged at the second working face.
10. The antenna structure according to claim 9, characterized in that the feed line segment comprises a first sub-feed line segment and a second sub-feed line segment;
the first sub-feeder line segment is arranged on the first working surface, the input end of the first sub-feeder line segment is connected with the dipole segment, and the output end of the first sub-feeder line segment is connected with the input end of the first sub-control folding segment;
the second sub-feeder line segment is arranged on the second working surface, the input end of the second sub-feeder line segment is connected with the dipole segment, and the output end of the second sub-feeder line segment is connected with the input end of the second sub-control folding segment.
11. An electronic device, characterized in that it comprises an antenna structure according to any one of claims 1 to 10.
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| CN202210556858.0A CN115084823B (en) | 2022-05-20 | 2022-05-20 | Antenna structure and equipment |
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