CN117954837A

CN117954837A - Antenna, antenna glass and vehicle

Info

Publication number: CN117954837A
Application number: CN202410134414.7A
Authority: CN
Inventors: 陈佳佳; 封西亚; 陈志兴; 雷德彬; 董梦银
Original assignee: Fuyao Glass Industry Group Co Ltd
Current assignee: Fuyao Glass Industry Group Co Ltd
Priority date: 2024-01-31
Filing date: 2024-01-31
Publication date: 2024-04-30

Abstract

The application relates to an antenna, an antenna glass and a vehicle. The antenna comprises: a first radiation branch and a second radiation branch. Wherein the feed point of the first radiating branch and the feed point of the second radiating branch are shorted to each other. The antenna is connected with a controller of terminal equipment carrying the antenna and is used for transmitting feedback signals to the controller through the first radiation branch and the second radiation branch which are in short circuit with each other so as to instruct the controller to perform in-place detection on the antenna according to the feedback signals. In the antenna, the feed points of the first radiation branch and the second radiation branch are directly short-circuited to form a channel capable of conducting direct current, so that a feedback signal is generated for the controller to perform in-place detection of the antenna, no extra device is required to be arranged, the antenna structure is simplified, the miniaturization design of the antenna is facilitated, and meanwhile, the manufacturing cost is reduced.

Description

Antenna, antenna glass and vehicle

Technical Field

The application relates to the technical field of antennas, in particular to an antenna, antenna glass and a vehicle.

Background

The in-situ detection of the antenna refers to a detection process of determining the working state of the antenna according to the feedback signal of the antenna radiation branches.

The radiation branches of the antenna are of an open-circuit structure, and in order to obtain feedback signals of the radiation branches, a resistor (such as 1 Kohm) is connected between the radiation branches of the open circuit to form a passage, so that feedback information is transmitted to terminal equipment carrying the antenna, and in-place detection of the antenna is achieved.

However, the redundancy of the antenna structure available for in-situ detection in the related art is costly.

Disclosure of Invention

Based on this, it is necessary to provide an antenna, an antenna glass and a vehicle in view of the above technical problems.

In a first aspect, the present application provides an antenna comprising:

the first radiation branch and the second radiation branch are in short circuit with each other;

The antenna is connected with a controller of terminal equipment carrying the antenna and is used for transmitting feedback signals to the controller through the first radiation branch and the second radiation branch which are in short circuit with each other so as to instruct the controller to perform in-place detection on the antenna according to the feedback signals.

In one embodiment, the length of the signal transmission line which is in short circuit with each other between the feeding point of the first radiation branch and the feeding point of the second radiation branch is 1/2 wavelength of the center frequency of the first radiation branch or the second radiation branch.

In one embodiment, the first radiation branch and the second radiation branch are shorted together to form a C-shaped structure, and at least one of the first radiation branch and the second radiation branch is bent toward the inside of the C-shaped structure.

In one embodiment, the antenna further includes:

A first parasitic branch located on at least one side of the first and second radiation branches shorted to each other; the first parasitic branch is used for coupling with the first radiation branch and the second radiation branch which are in short circuit with each other, and the bandwidth of the antenna is expanded.

In one embodiment, the first parasitic branch is in a U-shaped structure and is disposed around the first and second radiating branches that are shorted to each other.

In one embodiment, the antenna further includes:

And the second parasitic branch is positioned on at least one side of the first radiation branch and the second radiation branch which are in short circuit with each other.

In one embodiment, the second parasitic stub includes a plurality of spaced apart metal sheets.

In one embodiment, the antenna further includes:

a first parasitic branch and a second parasitic branch; the first parasitic branch and the second parasitic branch form an annular structure and are arranged around the first radiation branch and the second radiation branch which are in short circuit with each other;

The first parasitic branch and the second parasitic branch are respectively used for being coupled with the first radiation branch and the second radiation branch which are in short circuit with each other to generate a new low-frequency signal and a new high-frequency signal.

In a second aspect, the application also provides an antenna glass, which comprises a glass substrate and any antenna arranged on the glass substrate.

In a third aspect, the application also provides a vehicle comprising any of the antenna glasses described above.

In the above-mentioned antenna, antenna glass and vehicle, the antenna includes: a first radiation branch and a second radiation branch. Wherein the feed point of the first radiating branch and the feed point of the second radiating branch are shorted to each other. The antenna is connected with a controller of terminal equipment carrying the antenna and is used for transmitting feedback signals to the controller through the first radiation branch and the second radiation branch which are in short circuit with each other so as to instruct the controller to perform in-place detection on the antenna according to the feedback signals. In the antenna, the feed points of the first radiation branch and the second radiation branch are directly short-circuited to form a channel capable of conducting direct current, so that a feedback signal is generated for the controller to perform in-place detection of the antenna, no extra device is required to be arranged, the antenna structure is simplified, the miniaturization design of the antenna is facilitated, and meanwhile, the manufacturing cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it should be apparent that the drawings in the following description are only some embodiments of the present application and should not be construed as limiting the present application in any way. Other embodiments and corresponding figures for other embodiments will be apparent to those of ordinary skill in the art from the drawings.

FIG. 1 is a schematic diagram of an antenna in one embodiment;

FIG. 2 is a schematic diagram of the structure of a coaxial feed line in one embodiment;

FIG. 3 is a schematic diagram of an antenna according to another embodiment;

FIG. 4 is a schematic diagram of an antenna according to another embodiment;

FIG. 5 is a schematic diagram of an antenna according to another embodiment;

FIG. 6 is a schematic diagram of an antenna according to another embodiment;

FIG. 7 is a schematic diagram of an antenna according to another embodiment;

FIG. 8 is a schematic diagram of an antenna according to another embodiment;

FIG. 9 is a schematic diagram of an antenna according to another embodiment;

FIG. 10 is a schematic diagram of an antenna according to another embodiment;

FIG. 11 is a schematic structural view of an antenna glass according to one embodiment;

fig. 12 is a schematic structural view of a vehicle in one embodiment.

Reference numerals illustrate:

100—an antenna;

110—a first radiation branch;

120—a second radiation branch;

130—a first parasitic branch;

140—a second parasitic branch;

141—sheet metal;

200—antenna glass;

210—a glass substrate;

211—masking region;

300-vehicle.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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 application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that when an element or layer is referred to as being "on," "adjacent," "connected to," or "coupled to" another element, it can be directly on, adjacent, connected, or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, layers and/or sections, these elements, components, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, layer, doping type or section from another element, component, layer or section.

Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, in this specification, the term "and/or" includes any and all combinations of the associated listed items.

Based on this, an embodiment of the present application provides an antenna for in-situ detection with a simple structure, as shown in fig. 1, the antenna 100 includes: a first radiation branch 110 and a second radiation branch 120.

Wherein the feeding point a of the first radiating stub 110 and the feeding point B of the second radiating stub 120 are shorted to each other.

The antenna 100 is connected with a controller of a terminal device carrying the antenna 100, and is configured to transmit a feedback signal to the controller through the first radiation branch 110 and the second radiation branch 120 that are shorted to each other, so as to instruct the controller to perform in-situ detection on the antenna 100 according to the feedback signal.

Next, description will be made of the first radiation stub 110 and the second radiation stub 120 in the antenna 100, respectively:

The first radiation stub 110 and the second radiation stub 120 are main structures for receiving and radiating electromagnetic signals in the antenna 100. The first radiating stub 110 and the second radiating stub 120 correspond to different operating frequency bands. In the embodiment of the present application, the shapes and sizes of the first radiating branch 110 and the second radiating branch 120 are not particularly limited, and the high-frequency operating band and the low-frequency operating band of the antenna 100 can be adjusted accordingly by changing the shapes and sizes of the first radiating branch 110 and the second radiating branch 120.

Illustratively, as shown in fig. 1, the length of the first radiating branch 110 is smaller than the length of the second radiating branch 120, the first radiating branch 110 is used to operate the antenna 100 in a high frequency operating band, and the second radiating branch 120 is used to operate the antenna 100 in a low frequency operating band. For example, first radiating branch 110 may resonate at 1410-2700MHz and the higher order modes may also resonate at 3300-5000 MHz. The second radiating branch 120 can resonate at 600-960MHz, and the higher order mode can resonate at 3300-5000MHz, so that the bandwidth of the whole real antenna 100 is 600-960MHz and 1400-6000MHz.

The feeding points of the first radiating branch 110 and the second radiating branch 120 are connected to a power supply end to feed the first radiating branch 110 and the second radiating branch 120, so as to implement the receiving and radiating of electromagnetic signals by the antenna 100. Alternatively, the feeding points of the first and second radiating branches 110 and 120 may be connected to the power supply terminal through microstrip lines, coplanar waveguides, or coaxial feed lines.

Illustratively, as shown in fig. 2, the coaxial feeder includes a core S1 and a shield shell S2 coaxially disposed, the shield shell S2 being disposed around the core S1. With the coaxial feed line feeding the first radiating branch 110 and the second radiating branch 120, the feeding point a of the first radiating branch 110 may be connected with the inner core of the coaxial feed line, and the feeding point B of the second radiating branch 120 may be connected with the shielding case of the coaxial feed line. The coaxial feed line may cause opposite phase electrical signals to be produced between the first radiating stub 110 and the second radiating stub 120.

The feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted with each other, and can conduct direct current to form the antenna 100 with a shorted structure (also referred to as a balun structure), and current signals generated on the shorted first radiating branch 110 and the shorted second radiating branch 120 can be transmitted as feedback telecommunication to a controller of a terminal device on which the antenna 100 is mounted, so as to instruct the controller to perform in-place detection on the antenna 100 according to the received feedback signals.

The terminal device on which the antenna 100 is mounted may be an automobile, and the controller of the terminal device may be a vehicle controller (VEHICLE MANAGEMENT SYSTEM, VMS) in the automobile, for example.

In an embodiment of the present application, an antenna is provided that includes: a first radiation branch and a second radiation branch. Wherein the feed point of the first radiating branch and the feed point of the second radiating branch are shorted to each other. The antenna is connected with a controller of terminal equipment carrying the antenna and is used for transmitting feedback signals to the controller through the first radiation branch and the second radiation branch which are in short circuit with each other so as to instruct the controller to perform in-place detection on the antenna according to the feedback signals. In the antenna, the feed points of the first radiation branch and the second radiation branch are directly short-circuited to form a channel capable of conducting direct current, so that a feedback signal is generated for the controller to perform in-place detection of the antenna, no extra device is required to be arranged, the antenna structure is simplified, the miniaturization design of the antenna is facilitated, and meanwhile, the manufacturing cost is reduced.

In one embodiment, as shown in fig. 1, a length L of a signal transmission line shorted to each other between a feeding point a of the first radiating branch 110 and a feeding point B of the second radiating branch 120 is 1/2 wavelength of a center frequency of the first radiating branch 110 or the second radiating branch 120.

Illustratively, as shown in fig. 1, the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are opposite to each other, the signal transmission line is folded in half to short the feeding point a and the feeding point B to each other, the length L of the signal transmission line between the feeding point a and the feeding point B, which are short-circuited to each other, is 1/2 wavelength of the center frequency of the first radiating branch 110 or the second radiating branch 120, and the lengths of the feeding point a and the feeding point B, which are respectively to the folding points, are 1/4 wavelength of the center frequency of the first radiating branch 110 or the second radiating branch 120.

In order to improve the overall performance of the antenna 100, the length L of the signal transmission line is 1/2 of the wavelength corresponding to the center frequency of the low-frequency operating band in the first radiating branch 110 and the second radiating branch 120. Illustratively, the length of the first radiating branch 110 is smaller than the length of the second radiating branch 120, the first radiating branch 110 operates in a high frequency operating band, the second radiating branch 120 operates in a low frequency operating band, and the length L of the signal transmission line shorted to each other between the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 is 1/2 wavelength of the center frequency of the second radiating branch 120.

Alternatively, as shown in fig. 1, a signal transmission line for implementing short circuit between the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 is a metal line with uneven width distribution, which can be used to adjust the impedance of the antenna 100. For example, the width distribution of the signal transmission line between the feeding point a and the feeding point B is controlled so that the input impedance of the antenna 100 is close to 50 ohms, thereby achieving impedance matching.

In the embodiment of the application, the length of the signal transmission line which is in short circuit with each other between the feed point of the first radiation branch and the feed point of the second radiation branch in the provided antenna is 1/2 wavelength of the center frequency of the first radiation branch or the second radiation branch. In the antenna, the length of the signal transmission line which is in short connection with the feed points of the first radiation branch and the second radiation branch is 1/2 wavelength of the center frequency of the first radiation branch or the second radiation branch, so that the influence on the antenna pattern and standing wave ratio after the short connection of the first radiation branch and the second radiation branch can be reduced, and the antenna performance is improved.

In order to reduce the occupied area of the antenna 100, in one embodiment, the first radiating branch 110 and the second radiating branch 120 are shorted together and then have a C-shaped structure, and at least one of the first radiating branch 110 and the second radiating branch 120 is bent toward the inside of the C-shaped structure.

As shown in fig. 1, the integral structure formed by shorting the first radiation branch 110 and the second radiation branch 120 to each other is a C-shaped structure having an opening.

Alternatively, the first radiating stub 110 may be bent from the feeding point a toward the inside of the C-shaped structure, and the second radiating stub 120 may be extended straight from the feeding point B along the extending direction of the signal transmission line; the first radiating stub 110 may also extend straight from the feeding point a in the extending direction of the signal transmission line, and the second radiating stub 120 may be bent from the feeding point B toward the inside of the C-shaped structure. As shown in fig. 1, the first radiating branch 110 may be bent from the feeding point a toward the inside of the C-shaped structure, and the second radiating branch 120 may also be bent from the feeding point B toward the inside of the C-shaped structure.

Alternatively, the first radiating stub 110 may be bent from the feeding point a to the outside of the C-type structure, and the second radiating stub 120 may be extended straight from the feeding point B in the extending direction of the signal transmission line; the first radiating stub 110 may also extend straight from the feeding point a in the extending direction of the signal transmission line, and the second radiating stub 120 may be bent from the feeding point B to the outside of the C-shaped structure. The first radiating branch 110 may be bent from the feeding point a to the outside of the C-shaped structure, and the second radiating branch 120 may also be bent from the feeding point B to the outside of the C-shaped structure. One of the first and second radiating branches 110 and 120 may be bent toward the outside of the C-shaped structure, and the other may be bent toward the inside of the C-shaped structure. As shown in fig. 3, the first radiating stub 110 may be bent from the feeding point a toward the inside of the C-shaped structure, and the second radiating stub 120 may be bent from the feeding point B toward the outside of the C-shaped structure.

In the embodiment of the application, the first radiation branch and the second radiation branch in the provided antenna are in a C-shaped structure after being in short circuit, and at least one of the first radiation branch and the second radiation branch is bent towards the inside of the C-shaped structure. In the antenna, the first radiation branch and the second radiation branch which are integrally in the C-shaped structure improve the concentration of the antenna layout, and at least one of the first radiation branch and the second radiation branch is bent towards the inside of the C-shaped structure, so that the occupied area of the antenna is further reduced, the occupied space is saved, and the layout difficulty of the antenna is correspondingly reduced.

To extend the low frequency bandwidth of the antenna 100, in one embodiment, as shown in fig. 4, the antenna 100 further includes: a first parasitic stub 130.

Wherein the first parasitic stub 130 is located on at least one side of the first radiating stub 110 and the second radiating stub 120 that are shorted to each other. The first parasitic stub 130 is configured to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other, extending the antenna bandwidth.

The first radiation branch 110 and the second radiation branch 120, which are shorted to each other, respectively generate a high frequency signal of a high frequency operation band and a low frequency signal of a low frequency operation band under a feeding action. The first parasitic branch 130 is a passive strip metal which is arranged at intervals with the first radiation branch 110 and the second radiation branch 120 which are in short circuit, and is used for being coupled with the first radiation branch 110 and the second radiation branch 120 which are in short circuit under the condition that the first radiation branch 110 and the second radiation branch 120 generate electromagnetic signals, so that the electromagnetic signals with new frequencies are generated, and the bandwidth of the antenna is further expanded.

Illustratively, the first parasitic branch 130 may be located on a side proximate to the first radiating branch 110, may be located on a side proximate to the second radiating branch 120, and may be disposed around the shorted first and second radiating branches 110, 120. In the embodiment of the present application, the setting position of the first parasitic branch 130 is not specifically limited, so as to achieve coupling with the first radiation branch 110 and the second radiation branch 120 that are shorted to each other, and correspondingly generate a new low-frequency signal.

In order to generate a new low frequency signal while expanding the low frequency bandwidth of the antenna 100, the first parasitic stub 130 needs to be designed longer. Based on this, in one embodiment, as shown in fig. 4, the first parasitic branch 130 has a U-shaped structure and is disposed around the first radiation branch 110 and the second radiation branch 120 that are shorted to each other.

Illustratively, as shown in fig. 4, the openings of the first parasitic branch 130 having the U-shaped structure and the first radiating branch 110 and the second radiating branch 120 having the C-shaped structure after being shorted with each other may be the same (the openings are all upward in fig. 4) or may be different. As shown in fig. 5, the openings of the first parasitic branch 130 and the first and second radiating branches 110 and 120 that are shorted to each other and then form a C-shaped structure face opposite directions (the openings of the first parasitic branch 130 and the first and second radiating branches 110 and 120 that are shorted to each other face downward in fig. 5). As shown in fig. 4, the first parasitic branch 130 has a right-angled U-shaped structure, which is suitable for a right-angled layout space. As shown in fig. 6, the first parasitic branch 130 may have a rounded U-shaped structure, and is suitable for a rounded layout space.

In an embodiment of the present application, the provided antenna further includes a first parasitic branch. The first parasitic stub is located on at least one side of the first and second radiating stubs shorted to each other, and the first parasitic stub is configured to couple with the first and second radiating stubs shorted to each other, extending an antenna bandwidth. Wherein, first parasitic branch is U type structure, and encircles the first radiation branch and the setting of second radiation branch of mutual short circuit. In the antenna, the passive first parasitic branch can be coupled with the first radiation branch and the second radiation branch which are in short circuit, so that a new low-frequency signal is generated, the low-frequency bandwidth of the antenna is expanded, the first parasitic branch is of a U-shaped structure surrounding the first radiation branch and the second radiation branch which are in short circuit, the concentration of the antenna layout is improved, the occupied area of the antenna is reduced, the occupied space is saved, and the layout difficulty of the antenna is also reduced.

In one embodiment, as shown in fig. 7, the antenna 100 further includes: a second parasitic stub 140.

Wherein the first parasitic stub 130 is located on at least one side of the first radiating stub 110 and the second radiating stub 120 that are shorted to each other.

The first radiation branch 110 and the second radiation branch 120, which are shorted to each other, respectively generate a high frequency signal of a high frequency operation band and a low frequency signal of a low frequency operation band under a feeding action.

Alternatively, in the case where the second parasitic stub 140 is a passive strip-shaped metal disposed at a distance from the first and second radiation stubs 110 and 120 shorted to each other, the second parasitic stub 140 may be disposed to have a length smaller than that of the first parasitic stub 130, so that the second parasitic stub 140 may be coupled with the first and second radiation stubs 110 and 120 shorted to each other in the case where the first and second radiation stubs 110 and 120 generate electromagnetic signals, thereby generating new high-frequency signals, thereby expanding the high-frequency bandwidth of the antenna.

Illustratively, the second parasitic branch 140 may be located on a side proximate to the first radiating branch 110, may be located on a side proximate to the second radiating branch 120, and may be disposed around the shorted first and second radiating branches 110, 120. In the embodiment of the present application, the setting position of the second parasitic branch 140 is not particularly limited.

In order to improve the radiation efficiency of the antenna 100, the second parasitic stub 140 may be disconnected to form a plurality of metal sheets disposed at intervals. Based on this, in one embodiment, as shown in fig. 7, the second parasitic dendrite 140 includes a plurality of metal sheets 141 that are spaced apart.

Illustratively, as shown in fig. 7, the metal sheets 141 in the second parasitic stub 140 may be rectangular metal sheets arranged in an edge-to-edge spacing. As shown in fig. 8, the metal sheets 141 in the second parasitic branch 140 may be triangular metal sheets, and are arranged at intervals edge to form rectangular structures, and the rectangular structures are arranged at intervals edge to edge.

It should be noted that, the interval between the metal sheets 141 in the second parasitic branch 140 corresponds to the capacitance connected in series in the second parasitic branch 140, so as to suppress the transmission wave on the medium (such as glass) carrying the antenna 100, thereby reducing the dielectric loss and improving the radiation efficiency.

In an embodiment of the present application, the provided antenna further includes a second parasitic branch. The second parasitic branch is located on at least one side of the first and second radiating branches shorted to each other. Wherein, in order to improve radiation efficiency, the second parasitic branch includes a plurality of sheetmetals that the interval set up. In the antenna, the second parasitic branches comprising the plurality of metal sheets arranged at intervals can be used for inhibiting transmission waves on a medium carrying the antenna, so that the dielectric loss is reduced, and the radiation efficiency of the antenna is improved.

In practical applications, the antenna 100 may include both the first parasitic stub 130 and the second parasitic stub 140 for overall performance of the antenna 100. Therefore, as shown in fig. 9, the antenna 100 further includes: a first parasitic leg 130 and a second parasitic leg 140.

Wherein the first and second parasitic branches 130 and 140 form a ring structure and are disposed around the first and second radiating branches 110 and 120 shorted to each other.

The first parasitic branch 130 is a passive strip metal and can be used to couple with the first radiation branch 110 and the second radiation branch 120 that are shorted to each other to generate a new low-frequency signal, so as to expand the low-frequency bandwidth of the antenna 100.

The second parasitic branch 140 is passive and includes a plurality of metal sheets disposed at intervals, and can be used to suppress the transmission wave on the medium carrying the antenna 100, so as to reduce the dielectric loss and improve the radiation efficiency.

Illustratively, as shown in fig. 9, the first parasitic stub 130 is longer, disposed around the first and second radiation stubs 110 and 120 shorted to each other, and the second parasitic stub 140 includes a plurality of metal sheets 141 disposed at intervals.

Alternatively, as shown in fig. 9, the first parasitic branch 130 is in an open U-shaped structure, the second parasitic branch 140 includes a plurality of rectangular metal sheets 141 arranged at intervals, and is in a linear structure as a whole and located at the opening of the first parasitic branch 130, and the first parasitic branch 130 and the second parasitic branch 140 together form a ring structure arranged around the first radiation branch 110 and the second radiation branch 120 that are shorted to each other.

As shown in fig. 10, the first parasitic branch 130 may be in an open U-shaped structure, the second parasitic branch 140 includes a plurality of rectangular metal sheets 141 arranged at intervals, and the whole is in a rectangular structure surrounding the first radiating branch 110 and the second radiating branch 120 which are shorted together, and the first parasitic branch 130 and the second parasitic branch 140 together form a ring structure surrounding the first radiating branch 110 and the second radiating branch 120 which are shorted together.

The second parasitic branch 140 may be located inside the first parasitic branch 130 (as shown in fig. 9), and may be located outside the first parasitic branch 130, surrounding only the first and second radiation branches 110 and 120 that are shorted to each other, and surrounding both the first parasitic branch 130 and the first and second radiation branches 110 and 120 that are shorted to each other.

In the embodiment of the application, the provided antenna further comprises a first parasitic branch and a second parasitic branch. The first parasitic branch and the second parasitic branch form an annular structure and are arranged around the first radiation branch and the second radiation branch which are in short circuit with each other. In the antenna, the low-frequency bandwidth of the antenna is expanded through the first parasitic branch, the radiation efficiency of the antenna is improved through the second parasitic branch, the overall performance of the antenna is improved, the concentration of the antenna layout is also improved, the occupied area of the antenna is reduced, the occupied space is saved, and the layout difficulty of the antenna is also reduced.

In one embodiment, the present application further provides an antenna with a simple structure, as shown in fig. 1, the antenna 100 includes: a first radiation branch 110 and a second radiation branch 120.

Wherein, the feed point a of the first radiation branch 110 and the feed point B of the second radiation branch 120 are shorted together, and the first radiation branch 110 and the second radiation branch 120 are shorted together and then form a C-shaped structure, and at least one of the first radiation branch 110 and the second radiation branch 120 is bent toward the inside of the C-shaped structure.

As shown in fig. 1, the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted to each other, and direct current may be conducted, forming an antenna 100 having a shorted structure (may also be referred to as a "balun structure") to generate a current signal on the shorted first radiating branch 110 and the shorted second radiating branch 120.

The signal transmission line for realizing short circuit between the feed point a of the first radiating branch 110 and the feed point B of the second radiating branch 120 is a metal line with uneven width distribution, and can be used for adjusting the impedance of the antenna 100.

In one embodiment, the length of the signal transmission line shorted to each other between the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 is 1/2 wavelength of the center frequency of the first radiating branch 110 or the second radiating branch 120.

In one embodiment, the first radiation branch 110 and the second radiation branch 120 are shorted together to form a C-shaped structure, and at least one of the first radiation branch 110 and the second radiation branch 120 is bent toward the inside of the C-shaped structure.

In one embodiment, as shown in fig. 4, the antenna 100 further includes: a first parasitic branch 130;

The first parasitic branch 130 is located on at least one side of the first and second radiating branches 110 and 120 shorted to each other; the first parasitic stub 130 is configured to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other, extending the antenna bandwidth.

In one embodiment, the first parasitic branch 130 is in a U-shaped configuration and is disposed around the first and second shorted-to-one radiating branches 110, 120.

In one embodiment, as shown in fig. 7, the antenna 100 further includes: a second parasitic branch 140;

the second parasitic branch 140 is located on at least one side of the first and second radiating branches 110 and 120 shorted to each other.

In one embodiment, as shown in fig. 7, the second parasitic stub 140 includes a plurality of spaced apart metal sheets 141.

In one embodiment, as shown in fig. 9, the antenna 100 further includes: a first parasitic leg 130 and a second parasitic leg 140;

the first and second parasitic branches 130 and 140 form a ring structure and are disposed around the first and second radiating branches 110 and 120 shorted to each other.

In an embodiment of the present application, an antenna is provided that includes: a first radiation branch and a second radiation branch. The feeding points of the first radiation branch and the feeding points of the second radiation branch are in short circuit, the first radiation branch and the second radiation branch are in a C-shaped structure after being in short circuit, and at least one of the first radiation branch and the second radiation branch is bent towards the inside of the C-shaped structure. In the antenna, the feed points of the first radiation branch and the second radiation branch are mutually shorted to form a channel capable of conducting direct current so as to generate a current signal, the antenna is applied to terminal equipment, signal transmission between the antenna and the terminal equipment is realized without arranging other complex circuits, the antenna structure is simplified, the first radiation branch and the second radiation branch which are integrally in a C-shaped structure improve the centralization of the antenna layout, and at least one of the first radiation branch and the second radiation branch is bent towards the inside of the C-shaped structure, so that the occupied area of the antenna is further reduced, the occupied space is saved, and the layout difficulty of the antenna is correspondingly reduced.

In one embodiment, the present application further provides an antenna with a simple structure, as shown in fig. 4, the antenna 100 includes: first radiating branch 110, second radiating branch 120, and first parasitic branch 130.

Wherein the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted to each other; the first parasitic branch 130 is located on at least one side of the first and second radiating branches 110 and 120 shorted to each other; the first parasitic stub 130 is configured to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other, extending the antenna bandwidth.

As shown in fig. 4, the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted to each other, and direct current may be conducted, forming the antenna 100 having a shorted structure (may also be referred to as a "balun structure") to generate a current signal on the shorted first radiating branch 110 and the shorted second radiating branch 120.

Illustratively, the first parasitic stub 130 may be configured to be longer to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other, generating a new low frequency signal, thereby expanding the low frequency bandwidth of the antenna 100; the first parasitic stub 130 may also be configured to be shorter to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other to generate a new high frequency signal, thereby expanding the high frequency bandwidth of the antenna 100.

Optionally, one first parasitic stub 130 may be included in the antenna 100, and a plurality of first parasitic stubs 130 may be included. Illustratively, the antenna 100 includes two first parasitic stubs 130 of different lengths, wherein a longer first parasitic stub 130 is configured to couple with the shorted first radiating stub 110 and the second radiating stub 120 to generate new low frequency signals, and wherein a shorter first parasitic stub 130 is configured to couple with the shorted first radiating stub 110 and the second radiating stub 120 to generate new high frequency signals, thereby expanding both the low frequency bandwidth and the high frequency bandwidth of the antenna 100.

In one embodiment, the first parasitic branch 130 is of a C-type configuration and is disposed around the first radiating branch 110 and the second radiating branch 120 that are shorted to each other.

In one embodiment, as shown in fig. 9, the antenna 100 further includes: a second parasitic branch 140;

In one embodiment, as shown in fig. 9, the second parasitic stub 140 includes a plurality of spaced apart metal sheets 141.

In an embodiment of the present application, an antenna is provided that includes: the first radiating branch, the second radiating branch, and the first parasitic branch. Wherein the feed point of the first radiation branch and the feed point of the second radiation branch are in short circuit with each other; the first parasitic branch is located on at least one side of the first and second radiating branches that are shorted to each other. In the antenna, the feed points of the first radiation branch and the second radiation branch are mutually shorted to form a channel capable of conducting direct current so as to generate a current signal, the antenna is applied to terminal equipment, signal transmission between the antenna and the terminal equipment is realized without arranging other complex circuits, the antenna structure is simplified, and the first parasitic branch can be coupled with the first radiation branch and the second radiation branch which are mutually shorted so as to generate an electromagnetic signal with new frequency, so that the bandwidth of the antenna is expanded.

In one embodiment, the present application further provides an antenna with a simple structure, as shown in fig. 7, the antenna 100 includes: first radiating branch 110, second radiating branch 120, and second parasitic branch 140.

Wherein the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted to each other; the second parasitic branch 140 includes a plurality of metal sheets 141 disposed at intervals and located at least one side of the first and second radiation branches 110 and 120 shorted to each other.

As shown in fig. 7, the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted to each other, and direct current may be conducted, forming the antenna 100 having a shorted structure (may also be referred to as a "balun structure") to generate a current signal on the shorted first radiating branch 110 and the shorted second radiating branch 120.

The first radiation branch 110 and the second radiation branch 120, which are shorted to each other, respectively generate a high frequency signal of a high frequency operation band and a low frequency signal of a low frequency operation band under a feeding action. The interval between the metal sheets 141 in the second parasitic branch 140 corresponds to a capacitance connected in series in the second parasitic branch 140, and can suppress a transmission wave on a medium (e.g., glass) carrying the antenna 100, thereby reducing dielectric loss and improving radiation efficiency.

In one embodiment, as shown in fig. 9, the antenna 100 further includes: a first parasitic branch 130;

The first and second parasitic branches 130 and 140 form a ring structure and are disposed around the first and second radiating branches 110 and 120 shorted to each other; the first parasitic stub 130 is configured to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other, extending the antenna bandwidth.

In an embodiment of the present application, an antenna is provided that includes: the first radiating branch, the second radiating branch, and the second parasitic branch. Wherein the feed point of the first radiation branch and the feed point of the second radiation branch are in short circuit with each other; the second parasitic branch comprises a plurality of metal sheets which are arranged at intervals. In the antenna, the feed points of the first radiation branch and the second radiation branch are mutually short-circuited to form a channel capable of conducting direct current so as to generate a current signal, the antenna is applied to terminal equipment, signal transmission between the antenna and the terminal equipment is realized without arranging other complex circuits, the antenna structure is simplified, and the second parasitic branch comprising a plurality of metal sheets arranged at intervals can be used for inhibiting transmission waves on a medium bearing the antenna so as to reduce dielectric loss and improve the radiation efficiency of the antenna.

The embodiment of the application also provides the antenna glass. As shown in fig. 11, the antenna glass 200 includes a glass substrate 210 and an antenna 100; the antenna 100 is disposed on a glass substrate 210.

As shown in fig. 1 to 10, the antenna 100 includes:

The first radiating branch 110 and the second radiating branch 120, the feeding point a of the first radiating branch 110 and the feeding point B of the second radiating branch 120 are shorted to each other;

In one embodiment, the antenna 100 further comprises:

a first parasitic stub 130, the first parasitic stub 130 being located on at least one side of the first radiating stub 110 and the second radiating stub 120 shorted to each other; the first parasitic stub 130 is configured to couple with the first radiating stub 110 and the second radiating stub 120 shorted to each other, extending the antenna bandwidth.

In one embodiment, the antenna 100 further comprises:

and a second parasitic stub 140, the second parasitic stub 140 being located on at least one side of the first radiating stub 110 and the second radiating stub 120 shorted to each other.

In one embodiment, the second parasitic stub 140 includes a plurality of spaced apart metal sheets 141.

In one embodiment, the antenna 100 further comprises:

a first parasitic leg 130 and a second parasitic leg 140; the first and second parasitic branches 130 and 140 form a ring structure and are disposed around the first and second radiating branches 110 and 120 shorted to each other.

Alternatively, the antenna 100 is attached to the surface of the glass substrate 210, and may be disposed inside the glass substrate 210. Illustratively, the glass substrate 210 is double-glazed, and the antenna 100 is disposed in an interlayer of the double-glazed.

Alternatively, as shown in fig. 11, the surface of the glass substrate 210 includes a shielding region 211, and the antenna 100 may be attached to the shielding region 211. Wherein the shielding region 211 may be an ink region.

Alternatively, the second radiation stub 120 including a plurality of metal sheets disposed at intervals may be used to suppress the transmission wave generated on the glass substrate 210, thereby improving the radiation efficiency of the antenna 100. Therefore, the second parasitic branch 140 may also be referred to as a frequency selective boundary of the antenna 100, and since the transmission wave after 3GHz on the glass substrate 210 of the antenna glass 200 in the automobile is strong in practical application, the transmission wave of 3GHz or more is suppressed by the second parasitic branch 140 when the antenna glass 200 is applied to the automobile.

In the embodiment of the present application, the specific structure and function of the antenna 100 in the provided antenna glass 200 can be referred to the previous embodiment, and will not be described herein.

The embodiment of the application also provides a vehicle. As shown in fig. 12, the vehicle 300 includes an antenna glass 200.

As shown in fig. 11, the antenna glass 200 includes a glass substrate 210 and an antenna 100; the antenna 100 is disposed on a glass substrate 210.

Illustratively, as shown in fig. 12, the vehicle 300 may be an automobile and the antenna glass 200 may be a fixed position glass such as a front windshield, a rear windshield, or a rear triangular window glass that is not movable in the automobile.

In the embodiment of the present application, the specific structure and function of the antenna glass 200 in the provided vehicle 300 can be found in the foregoing embodiment, and will not be described herein.

The foregoing is a further detailed description of the application in connection with specific/preferred embodiments, and it is not intended that the application be limited to such description. It will be apparent to those skilled in the art that several alternatives or modifications can be made to the described embodiments without departing from the spirit of the application, and these alternatives or modifications should be considered to be within the scope of the application. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "preferred embodiments," "examples," "specific examples," or "some examples," etc., means 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 application. In this specification, schematic representations of the above terms are not necessarily directed 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. The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. An antenna, the antenna comprising: the first radiation branch and the second radiation branch are in short circuit with each other; the antenna is connected with a controller of terminal equipment carrying the antenna and is used for transmitting feedback signals to the controller through a first radiation branch and a second radiation branch which are in short circuit with each other so as to instruct the controller to perform in-place detection on the antenna according to the feedback signals.

2. The antenna of claim 1, wherein a length of a signal transmission line shorted to each other between a feed point of the first radiating stub and a feed point of the second radiating stub is 1/2 wavelength of a center frequency of the first radiating stub or the second radiating stub.

3. The antenna of claim 1, wherein the first radiating stub and the second radiating stub are shorted to each other to form a C-shaped structure, and at least one of the first radiating stub and the second radiating stub is bent toward an inside of the C-shaped structure.

4. An antenna according to any of claims 1-3, characterized in that the antenna further comprises:

A first parasitic branch located on at least one side of the first and second radiation branches shorted to each other; the first parasitic branch is used for being coupled with the first radiation branch and the second radiation branch which are in short circuit mutually, and the bandwidth of the antenna is expanded.

5. The antenna of claim 4, wherein the first parasitic stub is U-shaped in configuration and is disposed around the shorted first and second radiating stubs.

6. An antenna according to any of claims 1-3, characterized in that the antenna further comprises:

7. The antenna of claim 6, wherein the second parasitic stub comprises a plurality of spaced apart metal sheets.

8. An antenna according to any of claims 1-3, characterized in that the antenna further comprises:

A first parasitic branch and a second parasitic branch; the first parasitic branch and the second parasitic branch form an annular structure and are arranged around the first radiation branch and the second radiation branch which are in short circuit with each other.

9. An antenna glass comprising a glass substrate and the antenna of any one of claims 1-8, the antenna being disposed on the glass substrate.

10. A vehicle comprising the antenna glass of claim 9.