CN114696097A - UWB antenna and wearable equipment - Google Patents
UWB antenna and wearable equipment Download PDFInfo
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- CN114696097A CN114696097A CN202210403160.5A CN202210403160A CN114696097A CN 114696097 A CN114696097 A CN 114696097A CN 202210403160 A CN202210403160 A CN 202210403160A CN 114696097 A CN114696097 A CN 114696097A
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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
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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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
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- 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
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
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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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
Abstract
The application discloses UWB antenna and wearable equipment is applied to the signal transmission field for the signal transmission ability of reinforcing antenna, UWB antenna include medium base plate, coaxial feeder, first radiation paster, second radiation paster and ground connection paster, and the front of medium base plate is located to first radiation paster, second radiation paster, and the back of medium base plate is located to the ground connection paster, and first radiation paster passes through coaxial feeder with the ground connection paster and is connected. Because this application has increased the second radiation paster on the basis of first radiation paster, can strengthen the radiation ability of antenna, further, because be equipped with certain gap between second radiation paster and the coaxial feeder, can increase resonant current, and then increase the bandwidth of antenna. Furthermore, the grounding patch is provided with a plurality of hollow grooves, so that the path through which current flows can be increased, and the grounding patch and the first radiation patch and the second radiation patch act together, the working frequency range of the antenna can be widened, and the signal transmission capability of the antenna is improved.
Description
Technical Field
The application relates to the field of signal transmission, in particular to a UWB antenna and wearable equipment.
Background
With the development of the communication technology of the internet of things, higher and higher requirements are put on an antenna as a communication component. For example, in order to improve the experience of users when using VR devices, it is necessary to use a wide-bandwidth and multi-band antenna, but the antenna in the prior art has a narrow bandwidth and a small number of bands, so that it is a problem to be solved in the art to provide a wide-bandwidth and multi-band antenna.
Disclosure of Invention
The utility model aims at providing a UWB antenna and wearable equipment can increase resonant current, and then increases the bandwidth of antenna, can widen the working frequency channel of antenna, improves the ability of antenna transmission signal.
In order to solve the above technical problem, the present application provides a UWB antenna, including:
a dielectric substrate;
the coaxial feeder is arranged at the symmetry axis of the dielectric substrate, extends along the symmetry axis and takes one end as a feed point;
the first radiation patch is arranged on the front surface of the dielectric substrate and is connected with the wire core of the coaxial feeder line;
the two second radiation patches are respectively arranged on two sides of the coaxial feeder line, arranged on the front surface of the medium substrate and provided with a preset gap with the coaxial feeder line;
the grounding patch is arranged on the back surface of the dielectric substrate and connected with the outer skin of the coaxial feeder line, and a plurality of hollow grooves are formed in the grounding patch;
the first radiation patch and the second radiation patch are used for generating a working frequency band covering UWB under the combined action of the hollow grooves of the grounding patch under the excitation of the feed of the coaxial feeder line.
Preferably, the second radiation patch includes a longitudinal patch part, a first transverse patch part and a second transverse patch part; vertical paster portion is followed coaxial feeder direction sets up, and with be equipped with the default gap between the coaxial feeder, the one end of first horizontal paster portion reaches the one end of the horizontal paster portion of second corresponds the connection respectively the both ends of vertical paster portion, just first horizontal paster portion with the horizontal paster portion of second all with vertical paster portion has the contained angle.
Preferably, the longitudinal patch portion, the first transverse patch portion and the second transverse patch portion are rectangular patch portions.
Preferably, the first transverse patch part is disposed near the first radiation patch, the second transverse patch part is disposed near the edge of the dielectric substrate, and the transverse length of the first transverse patch part is greater than that of the second transverse patch part.
Preferably, the first radiation patch is arranged in the middle of the front surface of the dielectric substrate; the ground patch is provided with a first rectangular hollow groove corresponding to the middle of the back surface of the medium substrate, and the first rectangular hollow groove is symmetrical about the symmetry axis.
Preferably, the ground patch is further provided with a second rectangular hollow slot, a third rectangular hollow slot and a fourth rectangular hollow slot, the third rectangular hollow slot is located between the second rectangular hollow slot and the fourth rectangular hollow slot, and the third rectangular hollow slot is about the symmetry axis symmetry, the second rectangular hollow slot and the fourth rectangular hollow slot are about the symmetry axis symmetry.
Preferably, the ground patch is provided with a fifth hollow groove, the fifth hollow groove corresponds to the second radiation patch in position, and the fifth hollow groove is symmetrical about the symmetry axis.
Preferably, the fifth hollow groove comprises a transverse groove, two longitudinal grooves and a rectangular annular groove; the transverse groove penetrates through the annular groove and extends out of the annular groove, and two ends of the transverse groove are respectively connected with one longitudinal groove and connected with the central point of the longitudinal groove;
the annular groove, the transverse groove and the two longitudinal grooves are communicated with each other.
In order to solve the technical problem, the application further provides wearable equipment comprising the UWB antenna.
Preferably, the wearable device is a smart watch or VR glasses.
The utility model provides a UWB antenna is applied to the signal transmission field for the signal transmission ability of reinforcing antenna, UWB antenna includes medium base plate, coaxial feeder, first radiation paster, second radiation paster and ground connection paster, and the front of medium base plate is located to first radiation paster, second radiation paster, and the back of medium base plate is located to the ground connection paster, and first radiation paster passes through coaxial feeder with the ground connection paster and is connected. Because this application has increased the second radiation paster on the basis of first radiation paster, can strengthen the radiation ability of antenna, further, because be equipped with certain gap between second radiation paster and the coaxial feeder, can increase resonant current, and then increase the bandwidth of antenna. Furthermore, the grounding patch is provided with a plurality of hollow grooves, so that the path through which current flows can be increased, and the grounding patch and the first radiation patch and the second radiation patch act together, the working frequency range of the antenna can be widened, and the signal transmission capability of the antenna is improved.
The application also provides a wearable device, which has the same beneficial effects with the UWB antenna described above.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a UWB antenna provided in the present application;
fig. 2 is a schematic plan view of a front surface of an antenna provided in the present application;
fig. 3 is a schematic plan view of a rear surface of an antenna provided in the present application;
fig. 4 is a schematic thickness diagram of a side surface of an antenna provided in the present application;
fig. 5 is a schematic diagram of a first structure of an antenna provided in the present application;
fig. 6 is a schematic diagram of a second structure of the antenna provided in the present application;
fig. 7 is a schematic diagram of a third structure of the antenna provided in the present application;
fig. 8 is a schematic bandwidth diagram of an antenna provided in the present application in a different structure;
fig. 9 is a schematic diagram of the bandwidth of an antenna provided herein;
fig. 10 is an H-plane antenna pattern provided herein;
fig. 11 is an E-plane antenna pattern provided herein.
Detailed Description
The core of this application is that a UWB antenna and wearable equipment are provided, can increase resonant current, and then the bandwidth of increase antenna, can widen the working frequency channel of antenna, improve the ability of antenna transmission signal.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a UWB antenna provided in the present application, where the antenna includes:
a dielectric substrate 1;
the coaxial feeder 2 is arranged at the symmetrical axis of the dielectric substrate 1, the coaxial feeder 2 extends along the symmetrical axis, and one end of the coaxial feeder 2 is used as a feed point;
the first radiation patch 3 is arranged on the front surface of the dielectric substrate 1 and is connected with the wire core of the coaxial feeder 2;
the two second radiation patches 4 are respectively arranged on two sides of the coaxial feeder 2, arranged on the front surface of the dielectric substrate 1 and provided with a preset gap with the coaxial feeder 2;
the grounding patch 5 is arranged on the back surface of the dielectric substrate 1 and connected with the outer skin of the coaxial feeder 2, and the grounding patch 5 is provided with a plurality of hollow grooves 6;
the first radiation patch 3 and the second radiation patch 4 are used for generating an operating frequency band covering UWB under the combined action of the feed excitation of the coaxial feed line 2 and the hollow slots 6 of the grounding patch 5.
Because the UWB antenna has data transmission rate height, transmission power hangs down and fixes a position accurate advantage, consequently, when using UWB antenna and wearable equipment or VR equipment, can improve the ability that VR equipment transmitted the signal. Furthermore, the bandwidth and the frequency band of the UWB antenna are increased through the design of the structure, and the signal transmission capacity of the antenna is further increased.
Specifically, this application has additionally set up two second radiation patches 4 on dielectric substrate 1's front, increases total radiation patch's area, and then increases signal transmission's ability. Further, because a preset gap is formed between the second radiation patch 4 and the coaxial feeder 2, at the moment, under the excitation action of the coaxial feeder 2, the resonant current is gathered to the preset gap, so that the intensity of the resonant current at the radiation patch is increased, and the signal transmission capability of the antenna can be increased. Further, a plurality of hollow grooves 6 are formed in the ground patch 5, so that a path for flowing of resonant current can be increased, the frequency range of the UWB antenna is increased, and the signal transmission capacity of the antenna is increased.
It should be noted that, the first radiation patch 3 in the present application may be, but is not limited to be, disposed at a middle position of the front surface of the dielectric substrate 1, where the structure of the first radiation patch 3 may be a structure, and in particular, may be symmetrical about the symmetry axis.
It should be further noted that, in the present application, one end of the coaxial feed line 2 as a feed point is disposed at the edge of the lower portion of the dielectric substrate 1. When the first radiation patch 3 is a rectangular structure, the coaxial feed line 2 is perpendicular to the rectangular side connected to the first radiation patch 3.
In conclusion, the structure of the UWB antenna in the present application can increase the resonant current of the antenna, thereby increasing the bandwidth of the antenna, widening the working frequency band of the antenna, and improving the signal transmission capability of the antenna.
On the basis of the above-described embodiment:
as a preferred embodiment, the second radiation patch 4 includes a longitudinal patch portion, a first lateral patch portion, and a second lateral patch portion; vertical paster portion sets up along 2 directions of coaxial feeder, and with coaxial feeder 2 between be equipped with predetermine the gap, the one end of the horizontal paster portion of first horizontal paster portion and the one end of the horizontal paster portion of second correspond the both ends of connecting vertical paster portion respectively, and the horizontal paster portion of first horizontal paster portion and second all has the contained angle with vertical paster portion.
The present embodiment is intended to provide a specific structure of the second radiation patch 4, and in particular, the second radiation patch 4 may be, but is not limited to, a C-shaped structure, specifically including a longitudinal patch portion, a first transverse patch portion, and a second transverse patch portion. Specifically, the second radiation patch 4 is made of the three patch parts. At this time, the second radiation patch 4 of the C-shaped structure on the right side is opened rightward, and the second radiation patch 4 of the C-shaped structure on the left side is opened leftward.
Further, the first and second transverse patch portions in this embodiment are perpendicular to the longitudinal patch portion, that is, the first and second transverse patch portions are perpendicular to the extending direction of the coaxial feed line 2.
As a preferred embodiment, the longitudinal patch portions, the first lateral patch portions and the second lateral patch portions are rectangular patch portions.
Further, the specific structure of the three patches in this embodiment may be, but is not limited to, a rectangular structure, and refer to fig. 1 or fig. 2 specifically.
Of course, other shapes are possible, and the embodiment is not limited herein.
As a preferred embodiment, a first lateral patch part is provided close to the first radiation patch 3, a second lateral patch part is provided close to the edge of the dielectric substrate 1, and the lateral length of the first lateral patch part is larger than the lateral length of the second lateral patch part.
Further, the transverse lengths of the first transverse patch part and the second transverse patch part in the present application may be the same or different, specifically, the transverse length of the first transverse patch part may be greater than the transverse length of the second transverse patch part. The specific value of the transverse length depends on the test results.
As a preferred embodiment, the first radiation patch 3 is arranged in the middle of the front surface of the dielectric substrate 1; the ground patch 5 is provided with a first rectangular hollow groove 61, the first rectangular hollow groove 61 corresponds to the middle of the back surface of the dielectric substrate 1, and the first rectangular hollow groove 61 is symmetrical with respect to the symmetry axis.
This embodiment aims at defining the concrete structure of cavity 6 in this application, specifically, when first radiation patch 3 locates the middle part of the front of medium base plate 1, ground patch 5 and the corresponding position of first radiation patch 3, be that the back middle part of medium base plate 1 is provided with first rectangle cavity 61 promptly. The corresponding positions here refer to corresponding positions of the front and back surfaces of the dielectric substrate 1, respectively.
Further, the first rectangular hollow groove 61 may have a size larger than that of the first radiation patch 3.
As a preferred embodiment, the ground patch 5 is further provided with a second rectangular hollow groove 62, a third rectangular hollow groove 63 and a fourth rectangular hollow groove 64, the third rectangular hollow groove 63 is located between the second rectangular hollow groove 62 and the fourth rectangular hollow groove 64, the third rectangular hollow groove 63 is symmetrical about the symmetry axis, and the second rectangular hollow groove 62 and the fourth rectangular hollow groove 64 are symmetrical about the symmetry axis.
Specifically, the present embodiment further comprises a second rectangular hollow groove 62, a third rectangular hollow groove 63 and a fourth rectangular hollow groove 64, specifically, the second rectangular hollow groove 62, the third rectangular hollow groove 63 and the fourth rectangular hollow groove 64 can be disposed above the first rectangular hollow groove 61, wherein the upper side is a side far away from the feeding point
The specific dimensions of the second rectangular hollow groove 62, the third rectangular hollow groove 63 and the fourth rectangular hollow groove 64 are not particularly limited herein.
Specifically, the width of the third rectangular hollow groove 63 in the present application is greater than the width of the second rectangular hollow groove 62 and greater than the width of the fourth rectangular hollow groove 64, and the width of the second rectangular hollow groove 62 and the width of the fourth rectangular hollow groove 64 are equal. The length of the third rectangular hollow groove 63 is smaller than the length of the second rectangular hollow groove 62 and larger than the length of the fourth rectangular hollow groove 64, and the length of the second rectangular hollow groove 62 is equal to the length of the fourth rectangular hollow groove 64. Wherein, the width is the length along the extending direction of the coaxial feeder 2, and the length is the length perpendicular to the extending direction of the coaxial feeder 2.
As a preferred embodiment, the ground patch 5 is provided with a fifth hollow groove 6, the fifth hollow groove 6 corresponds to the position of the second radiation patch 4, and the fifth hollow groove 6 is symmetrical about the symmetry axis.
Further, the ground patch 5 is further provided with a fifth hollow groove 6, specifically, the fifth hollow groove 6 corresponds to the position of the second radiation patch 4, where the corresponding position refers to the corresponding position of the front surface and the back surface of the dielectric substrate 1, specifically, the fifth hollow groove 6 is provided on the opposite back surface of the second radiation patch 4. At this time, the fifth hollow slot 6 is induced with the second radiation patch 4 on the front surface to increase the bandwidth of the antenna and widen the frequency band of the antenna.
As a preferred embodiment, the fifth hollow groove 6 comprises a transverse groove 67, two longitudinal grooves 66 and a rectangular annular groove 65; the transverse groove 67 penetrates through the annular groove 65 and extends out of the annular groove 65, and two ends of the transverse groove 67 are respectively connected with one longitudinal groove 66 and connected with the central point of the longitudinal groove 66;
the annular groove 65, the transverse groove 67 and the two longitudinal grooves 66 are communicated with each other.
Specifically, the fifth hollow groove 6 may have a specific structure including, but not limited to, a rectangular annular groove 65, and a transverse groove 67 extending through and out of the annular groove 65, wherein both ends of the transverse groove 67 are connected to a central point of a longitudinal groove 66, respectively. The transverse groove 67 may pass through the middle point of the annular groove 65 when passing through the annular groove 65.
Further, the upper edge (the edge far from the feed point) of the rectangular annular groove 65 corresponds to the lower edge of the first transverse patch part, the lower edge (the edge close to the feed point) of the rectangular annular groove 65 corresponds to the upper edge of the second transverse patch part, and the width (the length perpendicular to the extending direction of the coaxial feed line 2) of the rectangular annular groove 65 is greater than or equal to the transverse length of the first transverse patch part.
Specifically, referring to fig. 2 and fig. 3, fig. 2 is a schematic plan view of a front surface of an antenna provided in the present application, fig. 3 is a schematic plan view of a back surface of the antenna provided in the present application, and fig. 4 is a schematic thickness view of a side surface of the antenna provided in the present application. In an embodiment, the dimensional parameters of each part in fig. 2, 3 and 4 are shown in table 1, and table 1 is a schematic table of antenna parameters provided in the present application.
TABLE 1 antenna size parameters
Wherein, Wsub is the width of the dielectric substrate 1;
lsub is the length of the dielectric substrate 1;
hsub is the thickness of the dielectric substrate 1;
wpatch is the width of the first radiating patch 3;
lpatch is the length of the first radiating patch 3;
wfeed is the width of the coaxial feeder 2;
lfeed is the length of the coaxial feed line 2;
g _ feed is the gap width between the coaxial feed 2 and the second radiating patch 4;
lp1 is the transverse length of the second transverse patch section;
lp2 is the length of the longitudinal patch part;
lp3 is the transverse length of the first transverse patch portion;
wp is the width of the longitudinal patch part, the first transverse patch part and the second transverse patch part;
l _ Gp1 is the length from the lower edge of the first rectangular hollow groove 61 to the upper edge of the dielectric substrate 1;
l _ Gp2 is the length from the left edge of the third rectangular central control slot to the left edge of the dielectric substrate 1;
l _ Gp3 is the length from the upper edge of the first rectangular central control slot to the upper edge of the dielectric substrate 1;
w _ Gp is the length from the left edge of the first rectangular hollow groove 61 to the left edge of the dielectric substrate 1 (the width of the ground patch 5);
l _ s1 is the length between the inner edges of the annular groove 65 on both sides;
l _ s3 is the length between the outer edges of two longitudinal slots 66;
l _ s4 is the longitudinal length of the two longitudinal slots 66;
w _ s is the width of the annular groove 65, the lateral groove 67, and the longitudinal groove 66.
Of course, the above is only a specific implementation manner of the embodiment, and the specific size is not limited to the above table example. When the antenna is designed, all the sizes can be expanded or reduced in an equal proportion due to the mutual influence among the structures of the antenna, so that the frequency can be adjusted. Further, in the present application, the operating frequency band of the antenna is 3.1GHz to 10.6GHz, and the influence of the gap between the C-type radiating patch and the coaxial feeder 2 to the antenna resonance is large, at this time, the size of the gap cannot be changed at will, and when the operating frequency band needs to be changed, the gap structure can be adjusted (expanded or reduced, etc., according to the actual situation). Further, since the C-type radiation patch on the front surface of the dielectric substrate 1 and the ground patch 5 on the back surface affect each other, Lp2 described above is as wide as the ground, that is, Lp2+ LGp1 ═ Lsub.
Specifically, referring to fig. 5 to 8, fig. 5 is a first structural schematic diagram of an antenna provided in the present application, fig. 6 is a second structural schematic diagram of the antenna provided in the present application, fig. 7 is a third structural schematic diagram of the antenna provided in the present application, fig. 1 is a final structural schematic diagram of the antenna provided in the present application, and fig. 8 is a bandwidth schematic diagram of the antenna provided in the present application under different structures. The ANT1 corresponds to a first structural diagram of the antenna, the ANT2 corresponds to a second structural diagram of the antenna, the ANT3 corresponds to a third structural diagram of the antenna, and the ANT4 corresponds to the structural diagram in fig. 1.
Specifically, referring to fig. 9, fig. 9 is a schematic diagram of a bandwidth of an antenna provided in the present application. Particularly, the antenna widens the bandwidth of the antenna under the influence of the structure. Specifically, in fig. 9, the antenna bandwidth is 3.07-10.8GHz, which can completely cover the UWB band, and four resonances are generated within the bandwidth range, namely 3.23GHz, 4.24GHz, 6.17GHz, and 9.91 GHz.
Specifically, referring to fig. 10 and 11, fig. 10 is an H-plane antenna pattern provided in the present application, and fig. 11 is an E-plane antenna pattern provided in the present application, where the above two figures describe patterns corresponding to four resonant frequencies, and it can be seen that the maximum gain of the antenna is 4.9 dB.
A wearable device comprises the UWB antenna.
For solving the above technical problem, the present application further provides a wearable device, and please refer to the above embodiments for the introduction of the wearable device, which is not described herein again.
Wherein, as a preferred embodiment, wearable equipment is intelligent wrist-watch or VR glasses.
Of course, other electronic devices are also possible, and the present application is not limited thereto.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An UWB antenna, comprising:
a dielectric substrate;
the coaxial feeder is arranged at the symmetry axis of the dielectric substrate, extends along the symmetry axis and takes one end as a feed point;
the first radiation patch is arranged on the front surface of the dielectric substrate and is connected with the wire core of the coaxial feeder line;
the two second radiation patches are respectively arranged on two sides of the coaxial feeder line, arranged on the front surface of the medium substrate and provided with a preset gap with the coaxial feeder line;
the grounding patch is arranged on the back surface of the dielectric substrate and connected with the outer skin of the coaxial feeder line, and a plurality of hollow grooves are formed in the grounding patch;
the first radiation patch and the second radiation patch are used for generating an operating frequency band covering UWB under the combined action of the first radiation patch and the second radiation patch and the hollow grooves of the grounding patch under the excitation of the feed of the coaxial feeder.
2. The UWB antenna of claim 1, wherein the second radiating patch comprises a longitudinal patch portion, a first lateral patch portion and a second lateral patch portion; vertical paster portion is followed coaxial feeder direction sets up, and with be equipped with the default gap between the coaxial feeder, the one end of first horizontal paster portion reaches the one end of the horizontal paster portion of second corresponds the connection respectively the both ends of vertical paster portion, just first horizontal paster portion with the horizontal paster portion of second all with vertical paster portion has the contained angle.
3. The UWB antenna of claim 2, wherein the longitudinal patch portion, the first lateral patch portion, and the second lateral patch portion are rectangular patch portions.
4. The UWB antenna of claim 2, wherein the first lateral patch portion is disposed proximate to the first radiating patch, the second lateral patch portion is disposed proximate to the edge of the dielectric substrate, and a lateral length of the first lateral patch portion is greater than a lateral length of the second lateral patch portion.
5. The UWB antenna of claim 2, wherein the first radiating patch is disposed in a middle portion of the front surface of the dielectric substrate; the ground patch is provided with a first rectangular hollow groove corresponding to the middle of the back surface of the medium substrate, and the first rectangular hollow groove is symmetrical about the symmetry axis.
6. The UWB antenna of claim 5 wherein the ground patch is further provided with a second rectangular hollow slot, a third rectangular hollow slot, and a fourth rectangular hollow slot, the third rectangular hollow slot is located between the second rectangular hollow slot and the fourth rectangular hollow slot, and the third rectangular hollow slot is symmetric about the axis of symmetry, and the second rectangular hollow slot and the fourth rectangular hollow slot are symmetric about the axis of symmetry.
7. The UWB antenna of any of claims 1-6 wherein the ground patch is provided with a fifth hollow slot, the fifth hollow slot corresponds to a location of the second radiation patch, and the fifth hollow slot is symmetric about the axis of symmetry.
8. The UWB antenna of claim 7, wherein the fifth hollow slot comprises a transverse slot, two longitudinal slots and a rectangular annular slot; the transverse groove penetrates through the annular groove and extends out of the annular groove, and two ends of the transverse groove are respectively connected with one longitudinal groove and connected with the central point of the longitudinal groove;
the annular groove, the transverse groove and the two longitudinal grooves are communicated with each other.
9. A wearable device comprising the UWB antenna of any of claims 1-8.
10. The wearable device of claim 9, wherein the wearable device is a smart watch or VR glasses.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210403160.5A CN114696097A (en) | 2022-04-18 | 2022-04-18 | UWB antenna and wearable equipment |
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| CN202210403160.5A CN114696097A (en) | 2022-04-18 | 2022-04-18 | UWB antenna and wearable equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548662A (en) * | 2022-09-29 | 2022-12-30 | 东莞理工学院 | UWB antenna applied to wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548662A (en) * | 2022-09-29 | 2022-12-30 | 东莞理工学院 | UWB antenna applied to wireless communication system |
| CN115548662B (en) * | 2022-09-29 | 2024-01-26 | 东莞理工学院 | UWB antenna applied to wireless communication system |
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