EP4325881A1 - Structure d'antenne microruban et dispositif de communication - Google Patents

Structure d'antenne microruban et dispositif de communication Download PDF

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Publication number
EP4325881A1
EP4325881A1 EP22810351.1A EP22810351A EP4325881A1 EP 4325881 A1 EP4325881 A1 EP 4325881A1 EP 22810351 A EP22810351 A EP 22810351A EP 4325881 A1 EP4325881 A1 EP 4325881A1
Authority
EP
European Patent Office
Prior art keywords
strip
patch
shaped
shaped patch
communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22810351.1A
Other languages
German (de)
English (en)
Other versions
EP4325881A4 (fr
Inventor
Zubing WU
Guohua Zhao
Fanyu GUO
Fengkai XU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu T Ray Technology Co Ltd
Chengdu T Ray Technology Co Ltd
Original Assignee
Chengdu T Ray Technology Co Ltd
Chengdu T Ray Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu T Ray Technology Co Ltd, Chengdu T Ray Technology Co Ltd filed Critical Chengdu T Ray Technology Co Ltd
Publication of EP4325881A1 publication Critical patent/EP4325881A1/fr
Publication of EP4325881A4 publication Critical patent/EP4325881A4/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • 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
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • H01Q9/0435—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave using two feed points
    • 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
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • 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
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line

Definitions

  • the present disclosure relates to the field of microwave communications, and in particular, to a microstrip antenna structure and a communication device.
  • Microstrip antennas with their small size, simple structure, easy manufacture, and low profile, are attracting extensive attention in the field of microwave communications.
  • the present disclosure provides a microstrip antenna structure, comprising an antenna radiation assembly, an antenna feed assembly, a first dielectric plate, a second dielectric plate, and an antenna ground, wherein the antenna radiation assembly comprises a radiation patch and a coupling patch;
  • the coupling patch comprises a first strip-shaped patch, a second strip-shaped patch, a third strip-shaped patch, and a fourth strip-shaped patch that are distributed annularly, and the first strip-shaped patch has a length extension direction that is perpendicular to that of the second strip-shaped patch;
  • first strip-shaped patch and the second strip-shaped patch have an identical patch size
  • first strip-shaped patch and the third strip-shaped patch are centrally symmetrically distributed
  • second strip-shaped patch and the fourth strip-shaped patch are centrally symmetrically distributed.
  • a symmetric center between the first strip-shaped patch and the third strip-shaped patch coincides with that between the second strip-shaped patch and the fourth strip-shaped patch;
  • the first strip-shaped patch, the second strip-shaped patch, the third strip-shaped patch, and the fourth strip-shaped patch each are at an equal distance from the symmetric center.
  • the antenna feed assembly comprises a signal transmission strip and a plurality of feed connection strips, and the feed connection strips have a total number of less than four;
  • the signal transmission strip is in communication with the first strip-shaped patch, the second strip-shaped patch, the third strip-shaped patch, and the fourth strip-shaped patch through the plurality of feed connection strips, and each of the feed connection strips is configured to communicate respective end portions of any pair of adjacent strip-shaped patches among the first strip-shaped patch, the second strip-shaped patch, the third strip-shaped patch, and the fourth strip-shaped patch, which end portions are distal from the interval space.
  • the plurality of feed connection strips comprise a first connection strip and a second connection strip
  • the signal transmission strip comprises a first transmission strip and a second transmission strip
  • the plurality of feed connection strips comprise a first connection strip, a second connection strip, and a third connection strip;
  • the plurality of feed connection strips comprise a first connection strip, a second connection strip, and a fourth connection strip;
  • the second dielectric plate is provided with a plurality of isolation holes that run through the second dielectric plate, wherein the plurality of isolation holes are distributed around the antenna feed assembly and are in communication with the antenna ground.
  • the present disclosure provides a communication device, comprising at least one microstrip antenna structure according to any one of the foregoing implementations.
  • the antenna feed assembly and the coupling patch in the antenna radiation assembly are mutually communicatively provided on a side surface of the second dielectric plate, and the antenna ground is provided on the other side surface of the second dielectric plate; then, the radiation patch in the antenna radiation assembly is provided on a side surface of the first dielectric plate, and the other side surface of the first dielectric plate is laminated over the second dielectric plate and spaced by the coupling patch and the antenna feed assembly; the radiation patch has on the second dielectric platea patch projection area that at least partially overlaps with the coupling patch, and the antenna feed assembly is distributed outside of the patch projection area of the radiation patch, so as to form an antenna feed point in the patch projection area of the radiation patch through the coupling patch, ensuring that the antenna feed assembly can perform signal coupling and transmission through the coupling patch and the radiation patch. Therefore, while the communication function of the antenna structure is realized, the feed assembly and the antenna radiation assembly are integrally arranged on a same layer of physical structure, which decreases the overall height of the antenna structure, reduces the
  • Reference numbers in the figures include: 100-microstrip antenna structure; 110-antenna radiation assembly; 111-radiation patch;112-coupling patch; 113-first strip-shaped patch; 114-second strip-shaped patch; 115-third strip-shaped patch; 116-fourth strip-shaped patch; 120-antenna feed assembly; 130-first dielectric plate; 140-second dielectric plate; 150-antenna ground; 121-feed connection strip; 122-signal transmission strip; 123-first connection strip; 124-second connection strip; 125-third connection strip; 126-fourth connection strip; 127-first transmission strip; 128-second transmission strip; 160-isolation hole.
  • the terms “first”, “second” and the like are merely used to distinguish one entity or operation from another, and do not necessarily require or imply that any such actual relationship or order exists between these entities or operations.
  • the terms “including”, “comprising”, or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also other elements not expressly listed, or elements that are inherent to such process, method, article or apparatus.
  • the fact that an element is defined by the phrase “comprising a ......" does not preclude the existence of additional identical elements in the process, method, article or apparatus that comprises the element.
  • the terms “provided”, “mounted”, “coupled” and “connected” and the like are to be understood in a broad sense.
  • it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection, or an indirect connection through an intermediary, or an internal communication of two elements.
  • the specific meanings of these terms in the present disclosure may be understood in specific contexts.
  • FIG. 1 is a diagram of composition of a microstrip antenna 100 structure according to an embodiment of the present disclosure.
  • the microstrip antenna structure 100 is capable of integrally arranging a feed assembly and an antenna radiation assembly on a same layer of physical structure while realizing its own antenna communication function, thereby decreasing the overall height of the antenna structure, reducing the space occupied thereby, and facilitating its use.
  • the microstrip antenna structure100 maycomprise an antenna radiation assembly110, an antenna feed assembly120, a first dielectric plate130, a second dielectric plate140, and an antenna ground 150.
  • the antenna radiation assemb1y110 comprises a radiation patch111and a coupling patch112, wherein the radiation patch111is configured to implement a signal transceiving function, and the coupling patch112is configured to establish a signal coupling relationship with the radiation patch111, such that on the one hand, a hardware structure having an antenna feed function uses the coupling patch112 to transmit, by means of signal coupling, a to-be-transmitted electromagnetic wave signal to the radiation patch111 for signal transmission processing, and on the other hand, the radiation patch111transmits, by means of signal coupling, the received electromagnetic wave signal to the coupling patch112, which coupling patch112transmits the received electromagnetic wave signal to the hardware structure having an antenna feed function.
  • the radiation patch 111 may have a patch shape that is, but not limited to, any one of a circle, an ellipse, a square, a polygon, and the like.
  • the antenna feed assembly120 is configured to implement an antenna feed function of the microstrip antenna structure100
  • the antenna ground150 is configured to implement a grounding function of the microstrip antenna structure100.
  • the coupling patch112and the antenna feed assembly120 are provided on a same side surface of the second dielectric plate140, and the coupling patch112is in communication with the antenna feed assembly120, so that the antenna feed assembly120performs signal coupling and transmission through the coupling patch 112 and the radiation patch 111.
  • the antenna ground150 is provided on the other side surface of the second dielectric plate140.
  • the radiation patch111 is provided on a side surface of the first dielectric plate130, and the other side surface of the first dielectric plate130is laminated over the second dielectric plate140and spaced by the coupling patch 112 and the antenna feed assembly 120;
  • the radiation patch 111 has on the second dielectric plate 140 a patch projection area that at least partially overlaps with the coupling patch 112, so as to form an antenna feed point in the patch projection area of the radiation patch111through the coupling patch112, which facilitates establishing a signal transmission relationship between the antenna feed assembly 120 and the radiation patch111;
  • the antenna feed assembly 120 is distributed outside of the patch projection area of the radiation patch 111, so as to prevent the antenna feed assembly 120from interfering with the signal coupling performance of the coupling patch112as much as possible, thereby ensuring that the antenna feed assembly120canperform signal coupling and transmission through the coupling patch 112 and the radiation patch 111.
  • the antenna feed assembly120and the antenna radiation assembly110 are integrally arranged on a same layer of physical structure, which decreases the overall height of the antenna structure, reduces the space occupied thereby, and facilitates its use.
  • the coupling patch112 maycomprise a plurality of strip-shaped patches, and the coupling patch112forms a plurality of antenna feed points in the patch projection area of the radiation patch111through the plurality of strip-shaped patches, so as to extend the microstrip antenna structure100to a multi-feed-point antenna.
  • the strip-shaped patches may have a number of two, three, four, or more, each strip-shaped patch correspondingly forming one antenna feed point.
  • the two strip-shaped patches may be distributed in a manner that their length extension directions are perpendicular to each other; taking three strip-shaped patches for example, the three strip-shaped patches may be distributed in a manner that their length extension directions form 120° angles relative to each other.
  • the specific implementation of the coupling patch112 is illustrated below by taking four strip-shaped patches for example.
  • FIG. 2 is a first diagram of communication between the antenna feed assembly 120 and the coupling patch 112 according to an embodiment of the present disclosure.
  • the four strip-shaped patches comprised in the coupling patch112 may be represented as a first strip-shaped patch113, a second strip-shaped patch114, a third strip-shaped patch115, and a fourth strip-shaped patch116, respectively.
  • the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch116 are annularly distributed on the second dielectric plate140, and the first strip-shaped patch113 has a length extension direction that is perpendicular to that of the second strip-shaped patch114.
  • the first strip-shaped patch113 is spaced apart from the third strip-shaped patch 115, and the first strip-shaped patch 113 has a length extension direction that coincides with that of the third strip-shaped patch1 15, so as to arrange the first strip-shaped patch113and the third strip-shaped patch115on a same straight line in a spaced manner.
  • the second strip-shaped patch114 is spaced apart from the fourth strip-shaped patch 116, and the second strip-shaped patch114has a length extension direction that coincides with that of the fourth strip-shaped patch116, so as to arrange the second strip-shaped patch114and the fourth strip-shaped patch116on a same straight line in a spaced manner.
  • the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch1 16 present a cross-like distribution as a whole (the respective length extension directions of adjacent strip-shaped patches are perpendicular to each other), so that each of the first strip-shaped patch 113, the second strip-shaped patch 114, the third strip-shaped patch 115, and the fourth strip-shaped patch 116 uses an end portion proximate to the interval space as one antenna feed point of the microstrip antenna structure100,making electromagnetic wave signals transmitted through the four strip-shaped patches exhibit a phase difference that is a multiple of 90°.
  • the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch116 each may have identical, partially identical, or completely different patch sizes, and the specific patch size may be configured differently by an antenna designer according to needs of antenna communication performances.
  • the first strip-shaped patch113and the second strip-shaped patch114 have an identical patch size
  • first strip-shaped patch113and the second strip-shaped patch114 have an identical patch size
  • first strip-shaped patch113and the third strip-shaped patch115 are centrally symmetrically distributed
  • the second strip-shaped patch114and the fourth strip-shaped patch116 are centrally symmetrically distributed
  • a symmetric center between the first strip-shaped patch113and the third strip-shaped patch115 may coincide with that between the second strip-shaped patch 114 and the fourth strip-shaped patch 116, or may not coincide therewith, and the distance from the first strip-shaped patch 113 and the third strip-shaped patch 115 to a corresponding symmetric center may be the same as or different from that from the second strip-shaped patch 114 and the fourth strip-shaped patch 116 to a corresponding symmetric center.
  • the specific coincidence of the symmetric center(s) and/or the distance(s)to the corresponding symmetric center(s) may also be differently configured by antenna designers according to requirements for antenna communication performance.
  • the symmetric center between the first strip-shaped patch113and the third strip-shaped patch115 may be designed to be in a state of coinciding with that between the second strip-shaped patch 114 and the fourth strip-shaped patch 116, and the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch116 each are at an equal distance from the symmetric center.
  • the antenna feed assembly120 may construct the antenna polarization of the microstrip antenna structure100through a signal transmission strip122and a plurality of feed connection strips121 as comprised therein, where the antenna polarization mode of the microstrip antenna structure100 may be any one of a dual circular polarization mode, a left-hand circular polarization mode, a right-hand circular polarization mode, and a linear polarization mode.
  • the signal transmission strip122 is configured to serve as an electromagnetic wave signal input/output port of the antenna feed assembly120, and the signal transmission strip122needs to communicate with the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch116through the plurality of feed connection strips121, so as to construct the specific antenna polarization mode of the microstrip antenna structure100.
  • each of the feed connection strips121 is configured to communicate respective end portions of any pair of adjacent strip-shaped patches among the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patches116, which end portions are distal from the interval space.
  • the feed connection strips 121 need to have a total number of less than four to prevent the plurality of feed connection strips 121from communicating with each other to form a closed-loop structure, thereby preventing the antenna feed assembly120from being short-circuited, and avoiding the phenomenon that the antenna polarization mode cannot be realized.
  • the antenna polarization of the microstrip antenna structure100needs to be constructed as a dual circular one, it is necessary to have two feed connection strips121 and divide the signal transmission strip 122 into two transmission strips that operates independently.
  • each of the four strip-shaped patches comprised in the coupling patch 112 with only one strip-shaped patch by adopting the two feed connection strips 121, to have the two feed connection strips 121 diagonally distributed, and then to mount the two transmission strips on respective end portions of a pair of uncommunicated adjacent strip-shaped patches, which end portions are distal from the interval space, or to mount the two transmission strips on one feed connection strip 121 respectively, so that a dual circular polarization of the antenna is achieved through such communication between the antenna feed assembly 120 and the four strip-shaped patches.
  • the first strip-shaped patch113 is communicated with the second strip-shaped patch 114 through one feed connection strip 121
  • the third strip-shaped patch115 is communicated with the fourth strip-shaped patch 116 through the other feed connection strip121.
  • one transmission strip may be mounted on the first strip-shaped patch113, and the other transmission strip on the fourth strip-shaped patch116, so as to realize dual circular polarization of the antenna; or, one transmission strip may be mounted on the second strip-shaped patch114, and the other transmission strip on the third strip-shaped patch115, so as to realize the dual circular polarization of the antenna; or, one transmission strip may be mounted directly on the feed connection strip121between the first strip-shaped patch113and the second strip-shaped patch114, and the other transmission strip directly on the feed connection strip121between the third strip-shaped patch115and the fourth strip-shaped patch116, so as to realize dual circular polarization of the antenna.
  • the first strip-shaped patch113 is communicated with the fourth strip-shaped patch 116 through one feed connection strip121
  • the third strip-shaped patch115 is communicated with the second strip-shaped patch 114 through the other feed connection strip121.
  • one transmission strip may be mounted on the first strip-shaped patch113, and the other transmission strip on the second strip-shaped patch114,so as to realize dual circular polarization of the antenna; or, one transmission strip may be mounted on the third strip-shaped patch115, and the other transmission strip on the fourth strip-shaped patch116, so as to realize dual circular polarization of the antenna; or, one transmission strip may be mounted directly on the feed connection strip121between the first strip-shaped patch113and the fourth strip-shaped patch116, and the other transmission strip directly on the feed connection strip121between the third strip-shaped patch115and the second strip-shaped patch1 14,so as to realize dual circular polarization of the antenna.
  • the plurality of feed connection strips121 comprise a first connection strip123and a second connection strip124
  • the signal transmission strip122 comprises a first transmission strip127and a second transmission strip128.
  • the first connection strip123 has one end in communication with an end portion of the first strip-shaped patch113 distal from the interval space, and the other end in communication with an end portion of the second strip-shaped patch114 distal from the interval space
  • the second connection strip124 has one end in communication with an end portion of the third strip-shaped patch115 distal from the interval space, and the other end in communication with an end portion of the fourth strip-shaped patch116 distal from the interval space.
  • the first transmission strip127 may be communicated with an end portion of the first strip-shaped patch113 distal from the interval space, and the second transmission strip128with an end portion of the fourth strip-shaped patch 116 distal from the interval space; or, the first transmission strip 127 may be communicated with an end portion of the second strip-shaped patch 114 distal from the interval space, and the second transmission strip 128 with an end portion of the third strip-shaped patch 115 distal from the interval space; or, the first transmission strip127is directly communicated with the first connection strip 123, and the second transmission strip128is directly communicated with the second connection strip124. In so doing, a dual circular polarization effect of the antenna is achieved.
  • the dual circular polarization conditions of the microstrip antenna structure 100 are briefly described below by taking it as an example that the first transmission strip 127is in communication with an end portion of the first strip-shaped patch113 distal from the interval space, and the second transmission strip128is in communication with an end portion of the fourth strip-shaped patch116 distal from the interval space.
  • an electromagnetic wave signal transmitted by the first transmission strip127and the first strip-shaped patch113 has a signal amplitude of M1 and a signal phase of P1
  • an electromagnetic wave signal transmitted by the first transmission strip127and the second strip-shaped patch114 has a signal amplitude of M2 and a signal phase of P2
  • P1-P2 90°.
  • an electromagnetic wave signal transmitted by the second transmission strip128and the third strip-shaped patch115 has a signal amplitude of M3 and a signal phase of P3
  • an electromagnetic wave signal transmitted by the second transmission strip128and the fourth strip-shaped patch116 has a signal amplitude of M4 and a signal phase of P4
  • FIG. 3 is a second diagram of communication between the antenna feed assembly120and the coupling patch112according to an embodiment of the present disclosure
  • FIG. 4 is a third diagram of communication between the antenna feed assembly120and the coupling patch112according to an embodiment of the present disclosure.
  • the antenna polarization of the microstrip antenna structure100needs to be constructed as a single circular one (a left-hand circular polarization or a right-hand circular polarization), it is necessary to have three feed connection strips121 in cooperation with the signal transmission strip122.
  • the four strip-shaped patches comprised in the coupling patch 112 need to be rendered in communication by adopting the three feed connection strips 121; then, the signal transmission strip122is mounted on an end portion of one of a pair of adjacent strip-shaped patches that are not directly communicated with a feed connection strip 121, which end portion is distal from the interval space; or, the signal transmission strip122is mounted on any one of the three feed connection strips121. In so doing, a single circular polarization effect of the antenna is achieved through such communication between the antenna feed assembly120and the four strip-shaped patches.
  • the first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch116 are rendered in communication through three feed connection strips121; at this time, if the second strip-shaped patch114is not directly communicated with the third strip-shaped patch 115with a feed connection strip121, the signal transmission strip122 may be directly mounted on the second strip-shaped patch114to realize left-hand circular polarization; or, the signal transmission strip 122 is directly mounted on the third strip-shaped patch 115 to realize right-hand circular polarization; or, the signal transmission strip122is directly mounted on one of the three feed connection strips121to realize left-hand/right-hand circular polarization.
  • the signal transmission strip122 may be directly mounted on the fourth strip-shaped patch116to realize the left-hand circular polarization mode; or, the signal transmission strip122is directly mounted on the first strip-shaped patch113to realize the right-hand circular polarization mode; or, the signal transmission strip122is directly mounted on one of the three feed connection strips121to realize the left-hand/right-hand circular polarization mode.
  • the signal transmission strip122 may be directly mounted on the first strip-shaped patch113to realize the left-hand circular polarization mode; or, the signal transmission strip122is directly mounted on the second strip-shaped patch114to realize the right-hand circular polarization mode; or, the signal transmission strip122is directly mounted on one of the three feed connection strips121to realize the left-hand/right-hand circular polarization mode.
  • the signal transmission strip122 may be directly mounted on the third strip-shaped patch115to realize the left-hand circular polarization mode; or, the signal transmission strip122is directly mounted on the fourth strip-shaped patch116to realize the right-hand circular polarization mode; or, the signal transmission strip122is directly mounted on one of the three feed connection strips121to realize the left-hand/right-hand circular polarization mode.
  • the plurality of feed connection strips121 comprise a first connection strip123, a second connection strip124, and a third connection strip 125.
  • the first connection strip123 has one end in communication with an end portion of the first strip-shaped patch113 distal from the interval space, and the other end in communication with an end portion of the second strip-shaped patch114 distal from the interval space.
  • the second connection strip124 has one end in communication with an end portion of the third strip-shaped patch115 distal from the interval space, and the other end in communication with an end portion of the fourth strip-shaped patch116 distal from the interval space.
  • the third connection strip125 has one end in communication with an end portion of the second strip-shaped patch114distal from the interval space, and the other end in communication with an end portion of the third strip-shaped patch115 distal from the interval space.
  • the signal transmission strip122 may be communicated with an end portion of the first strip-shaped patch113 distal from the interval space, so as to realize the right-hand circular polarization mode; or, the signal transmission strip122 may be communicated with an end portion of the fourth strip-shaped patch116 distal from the interval space, so as to realize the left-hand circular polarization mode; or, the signal transmission strip122 may be directly communicated with any one of the first connection strip123, the second connection strip 124,and the third connection strip 125to realize the left-hand/right-hand circular polarization mode. In so doing, a single circular polarization effect of the antenna is achieved.
  • the right-hand circular polarization conditions of the microstrip antenna structure100 are briefly described below by taking it as an example that the signal transmission strip 122 is in communication with an end portion of the first strip-shaped patch 113 distal from the interval space.
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the first strip-shaped patch113 has a signal amplitude of M1 and a signal phase of P1
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the second strip-shaped patch114 has a signal amplitude of M2 and a signal phase of P2
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the third strip-shaped patch115 has a signal amplitude of M3 and a signal phase of P3
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the fourth strip-shaped patch116 has a signal amplitude of M4 and a signal phase of P4
  • the left-hand circular polarization conditions of the microstrip antenna structure100 are briefly described below by taking it as an example that the signal transmission strip 122 is in communication with an end portion of the fourth strip-shaped patch 116 distal from the interval space.
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the first strip-shaped patch113 has a signal amplitude of M1 and a signal phase of P1
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the second strip-shaped patch114 has a signal amplitude of M2 and a signal phase of P2
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the third strip-shaped patch115 has a signal amplitude of M3 and a signal phase of P3
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the fourth strip-shaped patch116 has a signal amplitude of M4 and a signal phase of P4
  • FIG. 5 is a fourth diagram of communication between the antenna feed assembly120and the coupling patch112according to an embodiment of the present disclosure.
  • the antenna polarization mode of the microstrip antenna structure100needs may also be realized through three feed connection strips121 in cooperation with the signal transmission strip122; at this time, the four strip-shaped patches comprised in the coupling patch 112 need to be rendered in communication with the three feed connection strips 121, and then, the signal transmission strip122is mounted on any one of the three feed connection strips121, such that a linear polarization effect of the antenna is achieved through such communication between the antenna feed assembly120and the four strip-shaped patches.
  • first strip-shaped patch113, the second strip-shaped patch114, the third strip-shaped patch115, and the fourth strip-shaped patch116 are rendered in communication through three feed connection strips121, where the signal transmission strip122 may be directly mounted on any one of the three feed connection strips121to construct linear polarization meeting a polarization angle desired by antenna designers.
  • the plurality of feed connection strips121 comprise a first connection strip123, a second connection strip124, and a fourth connection strip 126.
  • the first connection strip123 has one end in communication with an end portion of the first strip-shaped patch113 distal from the interval space, and the other end in communication with an end portion of the second strip-shaped patch114distal from the interval space.
  • the second connection strip124 has one end in communication with an end portion of the third strip-shaped patch1 15 distal from the interval space, and the other end in communication with an end portion of the fourth strip-shaped patch116 distal from the interval space.
  • the fourth connection strip 126 has one end in communication with an end portion of the first strip-shaped patch113 distal from the interval space, and the other end in communication with an end portion of the fourth strip-shaped patch116 distal from the interval space.
  • the signal transmission strip122 may be directly communicated with any one of the first connection strip123, the second connection strip124, and the fourth connection strip 126, so as to achieve a linear polarization effect of the antenna.
  • the linear polarization conditions of the microstrip antenna structure100 are briefly described below by taking it as an example that the signal transmission strip122 is directly communicated with the fourth connection strip126.
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the first strip-shaped patch113 has a signal amplitude of M1 and a signal phase of P1
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the second strip-shaped patch114 has a signal amplitude of M2 and a signal phase of P2
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the third strip-shaped patch115 has a signal amplitude of M3 and a signal phase of P3
  • an electromagnetic wave signal transmitted by the signal transmission strip122and the fourth strip-shaped patch116 has a signal amplitude of M4 and a signal phase of P4
  • an electromagnetic wave signal transmitted by the signal transmission strip122 and the communicated end portion of the first strip-shaped patch113 has a signal amplitude of M5 and a signal phase of P5, and an electromagnetic wave signal transmitted by the signal transmission strip
  • the present disclosure may construct a matched antenna polarization mode according to requirements of antenna designers by means of the signal transmission strip 122 and the plurality of feed connection strips 121 in cooperation with four strip-shaped patches comprised in the coupling patch 112.
  • the feed connection strips121 may have a shape that is, but not limited to, an arc shape, an elongated shape, or any curved shape having a curved portion.
  • a plurality of isolation holes 160 that run through the second dielectric plate 140 may be provided on the second dielectric plate140;the plurality of isolation holes160are distributed around the antenna feed assembly 120and are in communication with the antenna ground150, thereby reducing the signal radiation interference of the antenna feed assembly120 with the antenna radiation assembly110.
  • the plurality of isolation holes160 may be provided on two sides of each feed connection strip121comprised in the antenna feed assembly120.
  • the present disclosure may further provide a communication device, which uses at least one microstrip antenna structure100to realize its own communication function.
  • a plurality of the microstrip antenna structures100 may be arrayed to form an antenna array to be integrated with other communication hardware units.
  • the antenna feed assembly and the coupling patch in the antenna radiation assembly are mutually communicatively provided on a side surface of the second dielectric plate, and the antenna ground is provided on the other side surface of the second dielectric plate; then, the radiation patch in the antenna radiation assembly is provided on a side surface of the first dielectric plate, and the other side surface of the first dielectric plate is laminated over the second dielectric plate and spaced by the coupling patch and the antenna feed assembly; the radiation patch on the second dielectric plate has a patch projection area that at least partially overlaps with the coupling patch, and the antenna feed assembly is distributed outside of the patch projection area of the radiation patch, so as to form an antenna feed point in the patch projection area of the radiation patch through the coupling patch, and to ensure that the antenna feed assembly can perform signal coupling and transmission through the coupling patch and the radiation patch. Therefore, while the communication function of the antenna structure is realized, the feed assembly and the antenna radiation assembly are integrally arranged on a side surface of the second dielectric plate, and the antenna ground is provided on the other side surface of the

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP22810351.1A 2021-05-26 2022-05-09 Structure d'antenne microruban et dispositif de communication Pending EP4325881A4 (fr)

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CN202110574673.8A CN113036439B (zh) 2021-05-26 2021-05-26 微带天线结构及通信设备
PCT/CN2022/091741 WO2022247624A1 (fr) 2021-05-26 2022-05-09 Structure d'antenne microruban et dispositif de communication

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CN113036439B (zh) * 2021-05-26 2021-07-30 成都天锐星通科技有限公司 微带天线结构及通信设备

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EP4325881A4 (fr) 2024-06-05
CN113036439B (zh) 2021-07-30
WO2022247624A1 (fr) 2022-12-01

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