CN113131208B - Multi-band microstrip antenna and equipment - Google Patents
Multi-band microstrip antenna and equipment Download PDFInfo
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- CN113131208B CN113131208B CN202110436484.4A CN202110436484A CN113131208B CN 113131208 B CN113131208 B CN 113131208B CN 202110436484 A CN202110436484 A CN 202110436484A CN 113131208 B CN113131208 B CN 113131208B
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a multi-band microstrip antenna and equipment, comprising a dielectric layer, a metal patch, a grounding layer and a coaxial feeder. The metal patch is used for realizing double-frequency characteristics under the feed excitation of the coaxial feeder, and the working frequency band of the microstrip antenna is adjusted through the hollow slots of the metal patch so as to increase the working frequency band of the microstrip antenna. Therefore, the metal patch of the microstrip antenna has the characteristics that more frequency bands are realized on a single feed point through the coaxial feeder line and a mode of forming a plurality of slot combinations on the metal patch, so that the coverage frequency band of the microstrip antenna is increased, and the application field of the microstrip antenna is enlarged.
Description
Technical Field
The invention relates to the field of communication of the Internet of things, in particular to a multi-band microstrip antenna and equipment.
Background
With the development of the communication technology of the internet of things, higher and higher requirements are put on an antenna serving as a communication component. The microstrip-based antenna has the following advantages: the volume is small; the weight is light; a low profile; linear polarization or circular polarization is easy to realize; is easy to be attached to the surface of a metal object or a textile body; is easy to be integrated with active devices and microwave circuits into a unified component, and is widely researched and applied in the field of communication of the Internet of things. At present, the conventional microstrip antenna is usually designed in a double-frequency manner on one microstrip antenna, and has the problems of less coverage frequency band and narrower application field.
Therefore, how to provide a solution to the above technical problem is a problem that a person skilled in the art needs to solve at present.
Disclosure of Invention
The invention aims to provide a multi-band microstrip antenna and equipment, wherein the metal patch realizes the characteristic of more frequency bands on a single feed point by a coaxial feed line and a mode of arranging a plurality of slots on the metal patch in a combined way, thereby increasing the coverage frequency band of the microstrip antenna and expanding the application field of the microstrip antenna.
In order to solve the above technical problems, the present invention provides a multiband microstrip antenna, including:
a dielectric layer;
the metal patch is arranged on the upper layer of the dielectric layer and is provided with a plurality of hollow grooves;
the grounding layer is arranged on the lower layer of the dielectric layer;
a coaxial feeder line penetrating through the dielectric layer, wherein the wire core is connected with the metal patch, and the shell is connected with the grounding layer;
the metal patch is used for realizing double-frequency characteristics under the excitation of the feed of the coaxial feeder, and the working frequency band of the microstrip antenna is adjusted through the hollow slots of the metal patch so as to increase the working frequency band of the microstrip antenna.
Preferably, the metal patch is a rectangular patch, and a connection position of the wire core of the coaxial feeder and the metal patch is located within a range of a preset length from a diagonal line of the metal patch.
Preferably, the plurality of hollow grooves on the metal patch include:
a first U-shaped groove;
a second U-shaped groove positioned at the inner side of the first U-shaped groove;
the opening directions of the first U-shaped groove and the second U-shaped groove are the same.
Preferably, the plurality of hollow grooves on the metal patch further comprises:
and the circular groove is positioned at the inner side of the second U-shaped groove.
Preferably, the plurality of hollow grooves on the metal patch further comprises:
two rectangular grooves located inside the first U-shaped groove and outside the second U-shaped groove.
Preferably, the first U-shaped groove, the second U-shaped groove and the circular groove are symmetrical about a central axis of the metal patch; the two rectangular grooves are symmetrical about the central axis of the metal patch.
Preferably, the planar size of the dielectric layer is larger than the planar size of the metal patch, and the planar size of the dielectric layer is equal to the planar size of the ground layer; and the metal patch is symmetrical about the center of the dielectric layer.
Preferably, the size parameters of each layer of the microstrip antenna are obtained by performing simulation optimization on the structural model of the microstrip antenna under the condition that the microstrip antenna reaches a target radiation frequency band.
Preferably, the target radiation frequency band of the microstrip antenna comprises 1.2GHz and/or 1.6GHz and/or 2.4GHz and/or 3.5GHz and/or 5.3GHz and/or 5.8GHz.
In order to solve the technical problems, the invention also provides equipment comprising any multi-band microstrip antenna.
The invention provides a multi-band microstrip antenna which comprises a dielectric layer, a metal patch, a grounding layer and a coaxial feeder. The metal patch is used for realizing double-frequency characteristics under the feed excitation of the coaxial feeder, and the working frequency band of the microstrip antenna is adjusted through the hollow slots of the metal patch so as to increase the working frequency band of the microstrip antenna. Therefore, the metal patch of the microstrip antenna has the characteristics that more frequency bands are realized on a single feed point through the coaxial feeder line and a mode of forming a plurality of slot combinations on the metal patch, so that the coverage frequency band of the microstrip antenna is increased, and the application field of the microstrip antenna is enlarged.
The invention also provides equipment which has the same beneficial effects as the microstrip antenna.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a vertical plane structure of a multiband microstrip antenna according to an embodiment of the present invention;
fig. 2 is a schematic horizontal plane structure of a multiband microstrip antenna according to an embodiment of the present invention;
fig. 3 is a return loss diagram of a multiband microstrip antenna according to an embodiment of the present invention;
fig. 4 is a schematic view of a horizontal plane radiation direction of a multiband microstrip antenna according to an embodiment of the present invention;
fig. 5 is a schematic view of a vertical plane radiation direction of a multiband microstrip antenna according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a multi-band microstrip antenna and equipment, and the metal patch realizes the characteristic of more frequency bands on a single feed point by a coaxial feed line and a mode of arranging a plurality of slots on the metal patch, thereby increasing the coverage frequency band of the microstrip antenna and expanding the application field of the microstrip antenna.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic view of a vertical plane structure of a multiband microstrip antenna according to an embodiment of the invention.
The multi-band microstrip antenna comprises:
a dielectric layer 1;
the metal patch 2 is arranged on the upper layer of the dielectric layer 1 and is provided with a plurality of hollow grooves;
a ground layer 3 arranged below the dielectric layer 1;
a coaxial feeder 4 penetrating the dielectric layer 1, wherein the wire core is connected with the metal patch 2, and the shell is connected with the grounding layer 3;
the metal patch 2 is used for realizing double-frequency characteristics under the excitation of the feed of the coaxial feeder 4, and adjusting the working frequency band of the microstrip antenna through a plurality of hollow slots of the metal patch 2 so as to increase the working frequency band of the microstrip antenna.
Specifically, the multiband microstrip antenna of this application includes dielectric layer 1, metal paster 2, ground plane 3 and coaxial feeder 4, and its theory of operation is:
the multi-band microstrip antenna is composed of an upper layer structure, a middle layer structure and a lower layer structure, wherein the uppermost layer structure is a metal patch 2, and a metal material with better conductivity and lower cost is generally selected as copper; the middle layer structure is an insulating medium layer 1, and an FR4 substrate which is convenient to process and controllable in cost is generally selected as the medium layer 1; the lowest layer is a ground layer 3, which is used for connecting with the equipment ground of the equipment, and copper foil is generally selected as the ground layer 3.
The multiband microstrip antenna adopts a coaxial feed method, namely, radio frequency energy is transmitted through a coaxial feeder 4. The coaxial feeder 4 is formed by an inner layer, a middle layer and an outer layer, wherein the innermost layer is a wire core, and copper metal is generally selected; the middle layer structure is an insulating medium layer; the outermost layer structure is a shell, copper metal is generally selected as a metal shielding layer, so that the anti-interference capability of the coaxial feeder 4 is enhanced, and the transmission loss of the coaxial feeder 4 is reduced. More specifically, the inner diameter of the coaxial feed line 4 is set to 0.3mm, and the outer diameter is set to 0.8mm, which is not particularly limited herein.
The specific connection structure of the coaxial feeder 4 is as follows: the coaxial feeder 4 penetrates through the dielectric layer 1, a wire core of the coaxial feeder 4 is connected with the metal patch 2, and a shell of the coaxial feeder 4 is connected with the grounding layer 3. If the device is a transmitting device, the device can transmit radio frequency energy to the metal patch 2 through the coaxial feeder 4 and the metal patch 2 is used as an antenna to emit; if the device is a receiving device, the device can receive the radio frequency energy transmitted from the outside through the metal patch 2 and transmit the radio frequency energy to the internal processing of the device through the coaxial feeder 4. It should be noted that, the metal patch 2 can realize dual-frequency characteristics under the excitation of the feed of the coaxial feeder 4, such as 2.4GHz and 5GHz, and can cover the bluetooth frequency band (2.4 GHz) and the WLAN (Wireless Local Area Network ) dual-frequency band (2.4 GHz and 5 GHz).
In order to enable one microstrip antenna to cover more frequency bands, the technical means adopted in the application are as follows: the metal patch 2 is provided with a plurality of hollow grooves, and the metal patch 2 can adjust the working frequency band of the microstrip antenna where the metal patch 2 is positioned through the hollow grooves, so that the working frequency band of the microstrip antenna can be increased, for example, the working frequency bands of 1.2GHz, 1.6GHz and 3.5GHz are increased, and the dual frequency bands (1575.42 MHz, 1227.60 Mhz) of GPS (Global Positioning System and global positioning system) and the WiMAX (World Interoperability for Microwave Access and global microwave access interoperability) frequency bands (3.5 GHz) can be covered.
The invention provides a multi-band microstrip antenna which comprises a dielectric layer, a metal patch, a grounding layer and a coaxial feeder. The metal patch is used for realizing double-frequency characteristics under the feed excitation of the coaxial feeder, and the working frequency band of the microstrip antenna is adjusted through the hollow slots of the metal patch so as to increase the working frequency band of the microstrip antenna. Therefore, the metal patch of the microstrip antenna has the characteristics that more frequency bands are realized on a single feed point through the coaxial feeder line and a mode of forming a plurality of slot combinations on the metal patch, so that the coverage frequency band of the microstrip antenna is increased, and the application field of the microstrip antenna is enlarged.
Based on the above embodiments:
referring to fig. 2, fig. 2 is a schematic horizontal plane structure of a multi-band microstrip antenna according to an embodiment of the present invention.
As an alternative embodiment, the metal patch 2 is a rectangular patch, and the connection position of the core of the coaxial feeder 4 and the metal patch 2 is located within a range of a predetermined length from a diagonal line of the metal patch 2.
Specifically, the metal patch 2 of the present application is a rectangular patch, where a connection position between a wire core of the coaxial feeder 4 and the metal patch 2 is set near or on a diagonal line of the metal patch 2, specifically, a connection position between a wire core of the coaxial feeder 4 and the metal patch 2 is located within a range of a preset length from the diagonal line of the metal patch 2, so that the metal patch 2 is convenient to realize dual-frequency characteristics such as 2.4GHz and 5GHz under the feed excitation of the coaxial feeder 4.
As an alternative embodiment, the plurality of hollow grooves on the metal patch 2 includes:
a first U-shaped groove 21;
a second U-shaped groove 22 located inside the first U-shaped groove 21;
wherein the opening directions of the first U-shaped groove 21 and the second U-shaped groove 22 are the same.
Specifically, a plurality of hollow grooves on the metal patch 2 of the present application include a first U-shaped groove 21 and a second U-shaped groove 22, and the working principle thereof is:
the first U-shaped groove 21 and the second U-shaped groove 22 are both arranged on the metal patch 2, and the second U-shaped groove 22 is positioned on the inner side of the first U-shaped groove 21, and the opening directions of the first U-shaped groove 21 and the second U-shaped groove are the same. The first U-shaped groove 21 and the second U-shaped groove 22 are provided for the purpose of adjusting the dual-frequency characteristic of the metal patch 2 realized under the coaxial feeder 4 to a characteristic of more frequency bands, such as adjusting the dual-frequency characteristics of 2.4GHz and 5GHz to a characteristic of three frequency bands of 2.4GHz, 5.3GHz and 5.8GHz.
As an alternative embodiment, the plurality of hollow slots on the metal patch 2 further includes:
a circular groove 23 located inside the second U-shaped groove 22.
Further, the plurality of hollow grooves on the metal patch 2 of the present application further include a circular groove 23, and the working principle thereof is as follows:
the circular groove 23 is arranged on the metal patch 2, and the circular groove 23 is positioned inside the second U-shaped groove 22. The purpose of the circular groove 23 is to adjust the operating frequency band of the metal patch 2 to the characteristics of the lower frequency band, such as 1.2GHz, 1.6GHz.
As an alternative embodiment, the plurality of hollow slots on the metal patch 2 further includes:
two rectangular grooves located inside the first U-shaped groove 21 and outside the second U-shaped groove 22.
Further, the plurality of hollow grooves on the metal patch 2 of the present application further includes two rectangular grooves (first rectangular groove 24, second rectangular groove 25), and the working principle thereof is:
the first rectangular groove 24 and the second rectangular groove 25 are formed in the metal patch 2, the first rectangular groove 24 and the second rectangular groove 25 are identical in size, and the first rectangular groove 24 and the second rectangular groove 25 are located on the inner side of the first U-shaped groove 21 and the outer side of the second U-shaped groove 22. The first rectangular groove 24 and the second rectangular groove 25 are arranged to optimize the reflection coefficient of the metal patch 2 in the existing radiation frequency band, so that the matching performance of the microstrip antenna in the existing radiation frequency band is good.
As an alternative embodiment, the first U-shaped groove 21, the second U-shaped groove 22 and the circular groove 23 are symmetrical about the central axis of the metal patch 2; the two rectangular grooves are symmetrical about the central axis of the metal patch 2.
Specifically, the first U-shaped groove 21 is symmetrical about the central axis of the metal patch 2 itself, the second U-shaped groove 22 is symmetrical about the central axis of the metal patch 2 itself, and the circular groove 23 is symmetrical about the central axis of the metal patch 2 itself; the first rectangular slot 24 and the second rectangular slot 25 are symmetrical about the central axis of the metal patch 2, which has the advantage of improving the matching performance of the microstrip antenna in the existing radiation frequency band.
As an alternative embodiment, the planar size of the dielectric layer 1 is larger than the planar size of the metal patch 2, and the planar size of the dielectric layer 1 is equal to the planar size of the ground layer 3; and the metal patch 2 is centrally symmetrical with respect to the dielectric layer 1.
Specifically, the plane size of the dielectric layer 1 is larger than the plane size of the metal patch 2, namely, the length of the dielectric layer 1 is larger than the length of the metal patch 2, and the width of the dielectric layer 1 is larger than the width of the metal patch 2; the plane size of the dielectric layer 1 is equal to the plane size of the grounding layer 3, namely the length and the width of the grounding layer 3 are the same as those of the dielectric layer 1; the metal patch 2 is symmetrical about the center of the dielectric layer 1, and the advantage of the arrangement is that the matching performance of the microstrip antenna in the existing radiation frequency band is further improved.
As an alternative embodiment, the size parameters of each layer of the microstrip antenna are obtained by performing simulation optimization on the structural model of the microstrip antenna under the condition that the microstrip antenna reaches a target radiation frequency band.
Specifically, the method for obtaining the dimension parameters of each layer of the microstrip antenna (namely, the dimension parameters of each layer of the microstrip antenna) is as follows: and building a structural model of the microstrip antenna according to the three-layer structural design of the microstrip antenna. And taking the target radiation frequency band of the microstrip antenna as a simulation optimization target, and performing simulation optimization on the structural model of the microstrip antenna by using electromagnetic simulation software (such as a three-dimensional electromagnetic analysis software package CST), so as to finally determine the dimension parameters of each layer of the microstrip antenna meeting the target radiation frequency band, thereby providing a reference basis for manufacturing the microstrip antenna.
As an alternative embodiment, the target radiation frequency band of the microstrip antenna comprises 1.2GHz and/or 1.6GHz and/or 2.4GHz and/or 3.5GHz and/or 5.3GHz and/or 5.8GHz.
Specifically, as shown in fig. 1 and 2, the metal patch 2 is a rectangular copper patch, and has a length L0 and a width W0; the length of the first U-shaped groove 21 is U2, and the width is U1; the second U-shaped groove 22 has a length of U4 and a width of U3; the first rectangular groove 24 and the second rectangular groove 25 are equal in size, L1 in length and W1 in width; the radius of the circular groove 23 is R1. The dielectric layer 1 is an FR4 substrate having a dielectric constant of 4.6, a thickness h, a length L, and a width W. The ground layer 3 is made of copper foil, and has a length L and a width W, and is the same as the dielectric layer 1. The coaxial feed line 4 has an inner diameter of 0.3mm, an outer diameter of 0.8mm, and a center coordinate (X0, Y0).
The target radiation frequency band of the microstrip antenna can be set: 1.2GHz, 1.6GHz, 2.4GHz, 3.5GHz, 5.3GHz and 5.8GHz (only a few of them can be arranged). Taking a target radiation frequency band of the microstrip antenna as a simulation optimization target, performing simulation optimization on a structural model of the microstrip antenna by using electromagnetic simulation software, and finally determining the size parameters of each layer of the microstrip antenna meeting the target radiation frequency band as follows:
TABLE 1
| Parameters (parameters) | L | W | L0 | W0 | U1 | U2 | U3 | U4 | L1 | W1 | R1 | X0 | Y0 |
| mm | 36.8 | 44.2 | 26.7 | 28 | 22 | 25 | 14 | 18 | 3 | 2 | 5 | 8 | -8.6 |
The simulation results of the microstrip antenna are shown in fig. 3-5, and as can be seen from fig. 3, the microstrip antenna has a plurality of radiation frequency bands, namely 1.2GHz, 1.6GHz, 2.4GHz, 3.5GHz, 5.3GHz and 5.8GHz, the reflection coefficients are-17.7 dB, -13dB, -17.9dB, -10.4dB, -11.3dB and-13 dB respectively, and the microstrip antenna has good matching performance in the frequency bands. As can be seen from the radiation patterns in fig. 4 and fig. 5, the microstrip antenna has an omnidirectional radiation characteristic in the half space in the above radiation frequency band, and can be conveniently assembled in the device, various complex surfaces and other positions.
In summary, the application is based on a rectangular patch antenna, and the multi-frequency characteristic is realized on a single feeding point by coaxially feeding at a position near a diagonal line and a method of combining a U-shaped groove, a round groove and a rectangular groove on the rectangular patch, so that the microstrip antenna can cover GPS dual-band (1575.42 MHz, 1227.60 MHz), bluetooth band (2.4 GHz), WLAN dual-band (2.4 GHz, 5 GHz), wiMAX band (3.5 GHz) and the like, and has the advantages of multi-band, high gain, small volume, low cost, low complexity and the like.
That is, the microstrip antenna can support WIFI, bluetooth, GPS and WiMAX in a wireless mode, and can be used for an intelligent internet of things terminal; the device can also be used on wearable products, such as products of smart watches, smart bracelets, smart clothes, AR (Augmented Reality) devices, VR (Virtual Reality) devices and the like; the method can also be used for other products such as logistics asset tracking, intelligent household appliances and intelligent meters, and can also be used in some industrial control scenes.
The application also provides equipment comprising any of the multiband microstrip antennas.
The description of the device provided in the present application refers to the above-mentioned embodiments of the microstrip antenna, and the description is omitted herein.
It should also be noted that in this 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. Moreover, 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 one … …" does not exclude the presence of other like 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 invention. 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 invention. Thus, the present invention 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 (7)
1. A multi-band microstrip antenna comprising:
a dielectric layer;
the metal patch is arranged on the upper layer of the dielectric layer and is provided with a plurality of hollow grooves;
the grounding layer is arranged on the lower layer of the dielectric layer;
a coaxial feeder line penetrating through the dielectric layer, wherein the wire core is connected with the metal patch, and the shell is connected with the grounding layer;
the metal patch is used for realizing double-frequency characteristics under the excitation of the feed of the coaxial feeder, and the working frequency band of the microstrip antenna is adjusted through a plurality of hollow slots of the metal patch so as to increase the working frequency band of the microstrip antenna;
the plurality of hollow grooves on the metal patch comprise:
a first U-shaped groove;
a second U-shaped groove positioned at the inner side of the first U-shaped groove;
a circular groove positioned at the inner side of the second U-shaped groove;
the opening directions of the first U-shaped groove and the second U-shaped groove are the same;
the two rectangular grooves are positioned on the inner side of the first U-shaped groove and the outer side of the second U-shaped groove, are symmetrical about the central axis of the metal patch and are used for optimizing the reflection coefficient of the metal patch in the existing radiation frequency band and improving the matching performance of the microstrip antenna in the existing radiation frequency band.
2. The multi-band microstrip antenna of claim 1, wherein said metal patch is a rectangular patch, and a connection location of a core of said coaxial feed line to said metal patch is located within a predetermined length of a diagonal distance from said metal patch.
3. The multi-band microstrip antenna of claim 1, wherein said first U-shaped slot, said second U-shaped slot and said circular slot are all symmetrical about a central axis of said metal patch; the two rectangular grooves are symmetrical about the central axis of the metal patch.
4. The multi-band microstrip antenna of claim 1, wherein a planar dimension of said dielectric layer is greater than a planar dimension of said metal patch, said planar dimension of said dielectric layer being equal to a planar dimension of said ground layer; and the metal patch is symmetrical about the center of the dielectric layer.
5. The multi-band microstrip antenna according to any one of claims 1 to 4, wherein the dimensional parameters of each layer of the microstrip antenna are obtained by performing simulation optimization on a structural model of the microstrip antenna under the condition that the microstrip antenna reaches a target radiation frequency band.
6. The multi-band microstrip antenna of claim 5, wherein the target radiation frequency band of the microstrip antenna comprises 1.2GHz and/or 1.6GHz and/or 2.4GHz and/or 3.5GHz and/or 5.3GHz and/or 5.8GHz.
7. A communication device comprising a multiband microstrip antenna according to any of claims 1 to 6.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024145A (en) * | 2015-08-12 | 2015-11-04 | 四川省韬光通信有限公司 | Miniature high-gain microstrip antenna |
| CN208352516U (en) * | 2018-07-10 | 2019-01-08 | 南京信息工程大学 | A kind of wide-band miniaturization Beidou micro-strip center-fed antenna |
| CN209730179U (en) * | 2019-04-23 | 2019-12-03 | 南京林业大学 | A kind of fluting three frequency microstrip antenna |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2631991B1 (en) * | 2012-02-24 | 2015-01-21 | Tata Consultancy Services Limited | Microstrip antenna |
| CN106785393A (en) * | 2016-12-19 | 2017-05-31 | 中国电子科技集团公司第二十研究所 | A kind of double frequency based on plane single pole sub antenna lobe millimeter wave micro-strip antenna wide |
| CN209232958U (en) * | 2019-01-22 | 2019-08-09 | 上海海洋大学 | A kind of multiband microstrip antenna of S-band |
| CN109841950A (en) * | 2019-03-29 | 2019-06-04 | 钟祥博谦信息科技有限公司 | Wideband filtered antenna |
-
2021
- 2021-04-22 CN CN202110436484.4A patent/CN113131208B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024145A (en) * | 2015-08-12 | 2015-11-04 | 四川省韬光通信有限公司 | Miniature high-gain microstrip antenna |
| CN208352516U (en) * | 2018-07-10 | 2019-01-08 | 南京信息工程大学 | A kind of wide-band miniaturization Beidou micro-strip center-fed antenna |
| CN209730179U (en) * | 2019-04-23 | 2019-12-03 | 南京林业大学 | A kind of fluting three frequency microstrip antenna |
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