CN114374078B - A Pattern Reconfigurable Antenna with Endfire Beam Scanning Function - Google Patents
A Pattern Reconfigurable Antenna with Endfire Beam Scanning Function Download PDFInfo
- Publication number
- CN114374078B CN114374078B CN202210099642.6A CN202210099642A CN114374078B CN 114374078 B CN114374078 B CN 114374078B CN 202210099642 A CN202210099642 A CN 202210099642A CN 114374078 B CN114374078 B CN 114374078B
- Authority
- CN
- China
- Prior art keywords
- arc
- diode
- shaped metal
- metal strip
- dielectric resonator
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims abstract description 130
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims description 15
- 238000010586 diagram Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000005388 cross polarization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
本发明属于天线通信技术领域，具体涉及一种具备端射波束扫描功能的方向图可重构天线。本发明包括自下而上层叠设置的金属地、介质基板，介质基板的上表面粘贴有介质谐振器、差分馈电结构以及可切换引向器；介质谐振器由差分馈电结构激励；差分馈电结构包括一对部分位于介质谐振器底部的金属臂与一对平行微带线；金属臂与平行微带线相连接；金属地在介质基板上的垂直投影面积大于介质谐振器与差分馈电结构在介质基板上的垂直投影面积；可切换引向器位于介质谐振器远离差分馈电结构的一侧，可切换引向器到介质谐振器中心的距离大于金属臂到介质谐振器中心的距离。
The invention belongs to the technical field of antenna communication, and in particular relates to a reconfigurable antenna with an end-fire beam scanning function. The invention includes a metal ground and a dielectric substrate stacked from bottom to top, and a dielectric resonator, a differential feed structure and a switchable director are pasted on the upper surface of the dielectric substrate; the dielectric resonator is excited by the differential feed structure; the differential feed The electrical structure includes a pair of metal arms partially located at the bottom of the dielectric resonator and a pair of parallel microstrip lines; the metal arms are connected to the parallel microstrip lines; the vertical projected area of the metal ground on the dielectric substrate is larger than that of the dielectric resonator and the differential feed The vertical projected area of the structure on the dielectric substrate; the switchable director is located on the side of the dielectric resonator away from the differential feed structure, and the distance from the switchable director to the center of the dielectric resonator is greater than the distance from the metal arm to the center of the dielectric resonator .
Description
技术领域technical field
本发明属于天线通信技术领域，具体涉及一种具备端射波束扫描功能的方向图可重构天线。The invention belongs to the technical field of antenna communication, and in particular relates to a reconfigurable antenna with an end-fire beam scanning function.
背景技术Background technique
近年来，无线通信技术得到飞速发展，天线作为一种用来发射或接收无线电波的部件,在无线通信系统中起到了举足轻重的作用。目前无线通信系统发展的重要方向是大容量、多功能、超宽带，为满足这一需求，同一平台上搭载的天线数量相应增加，而天线数目的增加必将导致系统成本、重量、体积的增加，同时也带来了电磁兼容方面的问题。为了克服这种束缚，使整个通信系统性能尽可能少地受到天线的制约，可重构天线应运而生。In recent years, wireless communication technology has developed rapidly, and antenna, as a component used to transmit or receive radio waves, plays a pivotal role in wireless communication systems. At present, the important direction of wireless communication system development is large capacity, multi-function, and ultra-wideband. In order to meet this demand, the number of antennas mounted on the same platform will increase accordingly, and the increase in the number of antennas will inevitably lead to an increase in system cost, weight, and volume. , but also brought about electromagnetic compatibility issues. In order to overcome this constraint and make the performance of the entire communication system less constrained by the antenna, reconfigurable antennas emerge as the times require.
方向图可重构天线因其多样化的辐射方向图受到广泛地关注。方向图可重构天线大多通过在天线辐射体或天线馈电结构中引入MEMS开关、二极管开关或场效应管开关等来改变天线地方向图，容易实现大角度地波束偏转。然而，受限于过于离散的波束，方向图可重构天线在其覆盖范围内的增益波动往往较大，许多设计甚至会存在一些覆盖盲区，这使得方向图可重构天线地应用受到极大的限制。Pattern reconfigurable antennas have attracted extensive attention due to their diverse radiation patterns. Pattern reconfigurable antennas mostly change the antenna pattern by introducing MEMS switches, diode switches, or FET switches into the antenna radiator or antenna feed structure, which can easily achieve large-angle beam deflection. However, limited by the overly discrete beam, the gain fluctuation of the pattern reconfigurable antenna in its coverage area is often large, and many designs even have some coverage holes, which greatly limits the application of the pattern reconfigurable antenna. limits.
发明内容Contents of the invention
本发明针对现有技术中存在的方向图可重构天线波束大多过于离散的不足，目的在于提供一种具备端射波束扫描功能的方向图可重构天线。端向波束扫描能够使得方向图可重构天线在覆盖范围地增益波动非常小，同时有利于使电磁波准确地朝向需要的方向以避免其他方向的电磁干扰。The present invention aims at providing a reconfigurable antenna with an end-fire beam scanning function in order to solve the problem that the beams of the reconfigurable antenna with a directional pattern are mostly too discrete in the prior art. End-to-beam scanning can make the gain fluctuation of the antenna reconfigurable in the pattern very small in the coverage area, and at the same time, it is beneficial to accurately direct the electromagnetic waves in the desired direction to avoid electromagnetic interference in other directions.
本发明为实现上述发明目的，采取的技术方案如下：The present invention is for realizing above-mentioned purpose of the invention, and the technical scheme that takes is as follows:
一种具备端射波束扫描功能的方向图可重构天线，包括自下而上层叠设置的金属地、介质基板，所述介质基板的上表面粘贴有介质谐振器、差分馈电结构以及可切换引向器；所述介质谐振器由差分馈电结构激励；所述差分馈电结构包括一对部分位于介质谐振器底部的金属臂与一对平行微带线；所述金属臂与平行微带线相连接；所述金属地在介质基板上的垂直投影面积大于介质谐振器与差分馈电结构在介质基板上的垂直投影面积；所述可切换引向器位于介质谐振器远离差分馈电结构的一侧，可切换引向器到介质谐振器中心的距离大于金属臂到介质谐振器中心的距离。A reconfigurable antenna with an end-fire beam scanning function, including a metal ground and a dielectric substrate stacked from bottom to top, the upper surface of the dielectric substrate is pasted with a dielectric resonator, a differential feed structure, and a switchable director; the dielectric resonator is excited by a differential feed structure; the differential feed structure includes a pair of metal arms partially located at the bottom of the dielectric resonator and a pair of parallel microstrip lines; the metal arms and the parallel microstrip The vertical projected area of the metal ground on the dielectric substrate is larger than the vertical projected area of the dielectric resonator and the differential feed structure on the dielectric substrate; the switchable director is located at the dielectric resonator away from the differential feed structure On one side of , the distance from the switchable director to the center of the dielectric resonator is larger than the distance from the metal arm to the center of the dielectric resonator.
进一步的作为本发明的优选技术方案，所述介质谐振器为单一介电常数的介质块，其相对介电常数为20；所述介质谐振器的形状为圆柱体。As a further preferred technical solution of the present invention, the dielectric resonator is a dielectric block with a single permittivity, and its relative permittivity is 20; the shape of the dielectric resonator is a cylinder.
进一步的作为本发明的优选技术方案，所述介质谐振器与金属臂相接触，其TE01δ模式由流经金属臂的电流激励得到；所述金属臂通过一对平行微带线与差分馈电端口相连。Further as a preferred technical solution of the present invention, the dielectric resonator is in contact with the metal arm, and its TE 01δ mode is obtained by exciting the current flowing through the metal arm; the metal arm is fed with a pair of parallel microstrip lines and differentially The ports are connected.
进一步的作为本发明的优选技术方案，所述可切换引向器包括多个弧形金属带条、多个二极管；所述多个弧形金属带条与多个二极管依次相邻间隔连接。As a further preferred technical solution of the present invention, the switchable director includes a plurality of arc-shaped metal strips and a plurality of diodes; the plurality of arc-shaped metal strips and the plurality of diodes are sequentially connected adjacent to each other at intervals.
进一步的作为本发明的优选技术方案，所述多个弧形金属带条包括第一弧形金属带条至第十一弧形金属带条；所述多个二极管包括第一二极管至第十二极管；所述第一弧形金属带条的一端与第一二极管的一端连接；所述第一二极管的另一端与第二弧形金属带条的一端连接；所述第二弧形金属带条的另一端与第二二极管的一端连接；所述第二二极管的另一端与第三弧形金属带条的一端连接；所述第三弧形金属带条的另一端与第三二极管的一端连接；所述第三二极管的另一端与第四弧形金属带条的一端连接；所述第四弧形金属带条的另一端与第四二极管的一端连接；所述第四二极管的另一端与第五弧形金属带条的一端连接；所述第五弧形金属带条的另一端与第五二极管的一端连接；所述第五二极管的另一端与第六弧形金属带条的一端连接；所述第六弧形金属带条的另一端与第六二极管的一端连接；所述第六二极管的另一端与第七弧形金属带条的一端连接；所述第七弧形金属带条的另一端与第七二极管的一端连接；所述第七二极管的另一端与第八弧形金属带条的一端连接；所述第八弧形金属带条的另一端与第八二极管的一端连接；所述第八二极管的另一端与第九弧形金属带条的一端连接；所述第九弧形金属带条的另一端与第九二极管的一端连接；所述第九二极管的另一端与第十弧形金属带条的一端连接；所述第十弧形金属带条的另一端与第十二极管的一端连接；所述第十二极管的另一端与第十一弧形金属带条的一端连接。As a further preferred technical solution of the present invention, the plurality of arc-shaped metal strips include the first arc-shaped metal strip to the eleventh arc-shaped metal strip; the plurality of diodes include the first diode to the first arc-shaped metal strip Ten diodes; one end of the first arc-shaped metal strip is connected to one end of the first diode; the other end of the first diode is connected to one end of the second arc-shaped metal strip; the The other end of the second arc-shaped metal strip is connected to one end of the second diode; the other end of the second diode is connected to one end of the third arc-shaped metal strip; the third arc-shaped metal strip The other end of the strip is connected to one end of the third diode; the other end of the third diode is connected to one end of the fourth arc-shaped metal strip; the other end of the fourth arc-shaped metal strip is connected to the first One end of the four diodes is connected; the other end of the fourth diode is connected to one end of the fifth arc-shaped metal strip; the other end of the fifth arc-shaped metal strip is connected to one end of the fifth diode connected; the other end of the fifth diode is connected to one end of the sixth arc-shaped metal strip; the other end of the sixth arc-shaped metal strip is connected to one end of the sixth diode; the sixth The other end of the diode is connected to one end of the seventh arc-shaped metal strip; the other end of the seventh arc-shaped metal strip is connected to one end of the seventh diode; the other end of the seventh diode It is connected with one end of the eighth arc-shaped metal strip; the other end of the eighth arc-shaped metal strip is connected with one end of the eighth diode; the other end of the eighth diode is connected with the ninth arc-shaped metal strip One end of the strip is connected; the other end of the ninth arc-shaped metal strip is connected to one end of the ninth diode; the other end of the ninth diode is connected to one end of the tenth arc-shaped metal strip; The other end of the tenth arc-shaped metal strip is connected to one end of the tenth diode; the other end of the tenth diode is connected to one end of the eleventh arc-shaped metal strip.
进一步的作为本发明的优选技术方案，所述可切换引向器中每三个相邻的弧形金属带条构成一个等效引向器，通过切换各二极管的通断状态能够实现等效引向器的切换。As a further preferred technical solution of the present invention, every three adjacent arc-shaped metal strips in the switchable guide constitute an equivalent guide, and the equivalent guide can be realized by switching the on-off state of each diode. Toggle switch.
进一步的作为本发明的优选技术方案，天线提供9种不同的辐射状态；当第一二极管与第二二极管导通，第三二极管至第十二极管都断开时，第一弧形金属带条、第二弧形金属带条、第三弧形金属带条构成一段等效引向器，此时天线工作在状态1；当第二二极管与第三二极管导通，其他二极管都断开时，第二弧形金属带条、第三弧形金属带条、第四弧形金属带条构成一段等效引向器，此时天线工作在状态2……基于此，天线可以提供9种不同的辐射状态。Further as a preferred technical solution of the present invention, the antenna provides 9 different radiation states; when the first diode and the second diode are turned on, and the third to tenth diodes are all turned off, The first arc-shaped metal strip, the second arc-shaped metal strip, and the third arc-shaped metal strip constitute an equivalent director. At this time, the antenna works in state 1; when the second diode and the third diode When the tube is turned on and other diodes are disconnected, the second arc-shaped metal strip, the third arc-shaped metal strip, and the fourth arc-shaped metal strip constitute an equivalent director. At this time, the antenna works in state 2... …Based on this, the antenna can provide 9 different radiation states.
本发明所述的一种具备端射波束扫描功能的方向图可重构天线，采用以上技术方案与现有技术相比，具有以下技术效果：A reconfigurable antenna with an end-fire beam scanning function according to the present invention has the following technical effects compared with the prior art by adopting the above technical solution:
1、本发明利用可切换引向器获得9个不同辐射方向的波束,相邻波束之间的间隔角度很小,能够实现接近连续的端射波束扫描。靠近介质谐振器放置的可切换引向器能够使得介质中的场分布发生偏移，有利于保证各状态良好的前后比，同时有利于天线的小型化。1. The present invention uses a switchable director to obtain nine beams with different radiation directions, and the interval angle between adjacent beams is very small, which can realize nearly continuous end-fire beam scanning. The switchable director placed close to the dielectric resonator can shift the field distribution in the medium, which is beneficial to ensure a good front-to-back ratio of each state, and is also beneficial to the miniaturization of the antenna.
2、本发明利用介质谐振器作为辐射单元，天线的辐射效率较金属的方向图可重构天线高。介质谐振器的形状为圆柱形,工作模式为TE01δ模式；因此，不同状态下天线方向图的一致性较好。介质谐振器为单一介电常数的介质块，易于加工；相对介电常数在20左右，相对较高，有利于获得较小的天线尺寸。2. The present invention uses a dielectric resonator as a radiation unit, and the radiation efficiency of the antenna is higher than that of a metal reconfigurable antenna. The shape of the dielectric resonator is cylindrical, and the working mode is TE 01δ mode; therefore, the consistency of the antenna pattern in different states is good. The dielectric resonator is a dielectric block with a single dielectric constant, which is easy to process; the relative dielectric constant is about 20, which is relatively high, which is conducive to obtaining a smaller antenna size.
附图说明Description of drawings
图1为本发明结构的俯视图；Fig. 1 is the top view of structure of the present invention;
图2为本发明结构的侧视图；Fig. 2 is the side view of structure of the present invention;
图3为本发明天线工作在不同工作状态下的反射系数曲线；Fig. 3 is the reflection coefficient curve of the antenna of the present invention working under different working conditions;
图4为本发明天线朝向z轴正方向辐射时的辐射方向图；Fig. 4 is the radiation pattern when the antenna of the present invention radiates towards the positive direction of the z-axis;
图5为本发明天线在不同工作状态下的E面主极化辐射方向图；Fig. 5 is the main polarization radiation pattern of the E plane of the antenna of the present invention under different working conditions;
附图中，1-介质基板；2-介质谐振器；3-差分馈电结构；4-金属地；5-弧形金属带条；6-二极管；31-金属臂；32-平行微带线；5A至5K-第一弧形金属带条至第十一弧形金属带条，6A至6J-第一二极管至第十二极管。In the drawings, 1-dielectric substrate; 2-dielectric resonator; 3-differential feed structure; 4-metal ground; 5-arc metal strip; 6-diode; 31-metal arm; 32-parallel microstrip line ; 5A to 5K-the first arc-shaped metal strip to the eleventh arc-shaped metal strip, 6A to 6J-the first diode to the tenth diode.
具体实施方式Detailed ways
下面结合附图详细的描述本发明的作进一步的解释说明,以使本领域的技术人员可以更深入地理解本发明并能够实施,但下面通过参考实例仅用于解释本发明,不作为本发明的限定。The present invention will be described in detail below in conjunction with the accompanying drawings for further explanation, so that those skilled in the art can understand the present invention more deeply and can implement it, but the following examples are only used to explain the present invention, not as the present invention limit.
如图1至图2所示，一种具备端射波束扫描功能的方向图可重构天线，包括自下而上层叠设置的金属地4、介质基板1，介质基板1的上表面粘贴有介质谐振器2、差分馈电结构3以及可切换引向器；介质谐振器2由差分馈电结构3激励；差分馈电结构3包括一对部分位于介质谐振器2底部的金属臂31与一对平行微带线32；金属臂31与平行微带线32相连接；金属地4在介质基板1上的垂直投影面积大于介质谐振器2与差分馈电结构3在介质基板1上的垂直投影面积；可切换引向器位于介质谐振器2远离差分馈电结构3的一侧，可切换引向器到介质谐振器2中心的距离大于金属臂31到介质谐振器2中心的距离。As shown in Figures 1 to 2, a reconfigurable antenna with an end-fire beam scanning function includes a metal ground 4 and a dielectric substrate 1 stacked from bottom to top. The upper surface of the dielectric substrate 1 is pasted with a dielectric The resonator 2, the differential feed structure 3 and the switchable director; the dielectric resonator 2 is excited by the differential feed structure 3; the differential feed structure 3 includes a pair of metal arms 31 partially located at the bottom of the dielectric resonator 2 and a pair of Parallel microstrip lines 32; the metal arm 31 is connected to the parallel microstrip lines 32; the vertical projected area of the metal ground 4 on the dielectric substrate 1 is larger than the vertical projected area of the dielectric resonator 2 and the differential feed structure 3 on the dielectric substrate 1 The switchable director is located on the side of the dielectric resonator 2 away from the differential feed structure 3 , and the distance from the switchable director to the center of the dielectric resonator 2 is greater than the distance from the metal arm 31 to the center of the dielectric resonator 2 .
介质谐振器2为单一介电常数的介质块，其相对介电常数为20；介质谐振器2的形状为圆柱体。介质谐振器2与金属臂31相接触，其TE01δ模式由流经金属臂31的电流激励得到；金属臂31通过一对平行微带线32与差分馈电端口相连。可切换引向器包括多个弧形金属带条5、多个二极管6；多个弧形金属带条5与多个二极管6依次相邻间隔连接。多个弧形金属带条5包括第一弧形金属带条5A至第十一弧形金属带条5K；多个二极管6包括第一二极管6A至第十二极管6J；第一弧形金属带条5A的一端与第一二极管6A的一端连接；第一二极管6A的另一端与第二弧形金属带条5B的一端连接；第二弧形金属带条5B的另一端与第二二极管6B的一端连接；第二二极管6B的另一端与第三弧形金属带条5C的一端连接；第三弧形金属带条5C的另一端与第三二极管6C的一端连接；第三二极管6C的另一端与第四弧形金属带条5D的一端连接；第四弧形金属带条5D的另一端与第四二极管6D的一端连接；第四二极管6D的另一端与第五弧形金属带条5E的一端连接；第五弧形金属带条5E的另一端与第五二极管6E的一端连接；第五二极管6E的另一端与第六弧形金属带条5F的一端连接；第六弧形金属带条5F的另一端与第六二极管6F的一端连接；第六二极管6F的另一端与第七弧形金属带条5G的一端连接；第七弧形金属带条5G的另一端与第七二极管6G的一端连接；第七二极管6G的另一端与第八弧形金属带条5H的一端连接；第八弧形金属带条5H的另一端与第八二极管6H的一端连接；第八二极管6H的另一端与第九弧形金属带条5I的一端连接；第九弧形金属带条5I的另一端与第九二极管6I的一端连接；第九二极管6I的另一端与第十弧形金属带条5J的一端连接；第十弧形金属带条5J的另一端与第十二极管6J的一端连接；第十二极管6J的另一端与第十一弧形金属带条5K的一端连接。The dielectric resonator 2 is a dielectric block with a single permittivity, and its relative permittivity is 20; the shape of the dielectric resonator 2 is a cylinder. The dielectric resonator 2 is in contact with the metal arm 31 , and its TE 01 δ mode is excited by the current flowing through the metal arm 31 ; the metal arm 31 is connected to the differential feed port through a pair of parallel microstrip lines 32 . The switchable director includes a plurality of arc-shaped metal strips 5 and a plurality of diodes 6; the plurality of arc-shaped metal strips 5 and the plurality of diodes 6 are sequentially connected adjacent to each other at intervals. A plurality of arc-shaped metal strips 5 includes a first arc-shaped metal strip 5A to an eleventh arc-shaped metal strip 5K; a plurality of diodes 6 includes a first diode 6A to a tenth diode 6J; the first arc One end of the metal strip 5A is connected with one end of the first diode 6A; the other end of the first diode 6A is connected with one end of the second arc metal strip 5B; the other end of the second arc metal strip 5B One end is connected with an end of the second diode 6B; the other end of the second diode 6B is connected with an end of the third arc-shaped metal strip 5C; the other end of the third arc-shaped metal strip 5C is connected with the third diode One end of the tube 6C is connected; the other end of the third diode 6C is connected to one end of the fourth arc-shaped metal strip 5D; the other end of the fourth arc-shaped metal strip 5D is connected to one end of the fourth diode 6D; The other end of the fourth diode 6D is connected to one end of the fifth arc-shaped metal strip 5E; the other end of the fifth arc-shaped metal strip 5E is connected to one end of the fifth diode 6E; the fifth diode 6E The other end of the sixth arc-shaped metal strip 5F is connected to one end; the other end of the sixth arc-shaped metal strip 5F is connected to one end of the sixth diode 6F; the other end of the sixth diode 6F is connected to the seventh One end of the arc-shaped metal strip 5G is connected; the other end of the seventh arc-shaped metal strip 5G is connected with one end of the seventh diode 6G; the other end of the seventh diode 6G is connected with the eighth arc-shaped metal strip 5H One end of the eighth arc-shaped metal strip 5H is connected with one end of the eighth diode 6H; the other end of the eighth diode 6H is connected with one end of the ninth arc-shaped metal strip 5I; the ninth arc-shaped metal strip 5I is connected; The other end of the arc-shaped metal strip 5I is connected to one end of the ninth diode 6I; the other end of the ninth diode 6I is connected to one end of the tenth arc-shaped metal strip 5J; the tenth arc-shaped metal strip 5J The other end of the tenth diode 6J is connected to one end; the other end of the tenth diode 6J is connected to one end of the eleventh arc-shaped metal strip 5K.
可切换引向器中每三个相邻的弧形金属带条5构成一个等效引向器，通过切换各二极管6的通断状态能够实现等效引向器的切换。天线提供9种不同的辐射状态；当第一二极管6A与第二二极管6B导通，第三二极管6C至第十二极管6J都断开时，第一弧形金属带条5A、第二弧形金属带条5B、第三弧形金属带条5C构成一段等效引向器，此时天线工作在状态1；当第二二极管6B与第三二极管6C导通，第一二极管6A、第四二极管6D～第十二极管6J都断开时，第二弧形金属带条5B、第三弧形金属带条5C、第四弧形金属带条5D构成一段等效引向器，此时天线工作在状态2……基于此，天线可以提供9种不同的辐射状态。Every three adjacent arc-shaped metal strips 5 in the switchable director constitute an equivalent director, and switching of the equivalent director can be realized by switching the on-off state of each diode 6 . The antenna provides 9 different radiation states; when the first diode 6A and the second diode 6B are turned on, and the third diode 6C to the tenth diode 6J are all turned off, the first arc-shaped metal strip Strip 5A, the second arc-shaped metal strip 5B, and the third arc-shaped metal strip 5C form a section of equivalent director, and now the antenna works in state 1; when the second diode 6B and the third diode 6C conduction, when the first diode 6A, the fourth diode 6D～the tenth diode 6J are all disconnected, the second arc-shaped metal strip 5B, the third arc-shaped metal strip 5C, and the fourth arc-shaped metal strip The metal strip 5D constitutes an equivalent director. At this time, the antenna works in state 2... Based on this, the antenna can provide 9 different radiation states.
本发明所涉及一种具备端射波束扫描功能的方向图可重构天线，可以提供如下表1所示的9种不同的辐射状态。相邻状态间的波束间隔仅为12°左右，能够提供接近连续的端向波束扫描。The invention relates to a pattern reconfigurable antenna with an endfire beam scanning function, which can provide nine different radiation states as shown in Table 1 below. The beam spacing between adjacent states is only about 12°, which can provide nearly continuous end-to-beam scanning.
表1Table 1
可切换引向器靠近介质谐振器放置，能够使得介质谐振器中的场产生偏移从而保证各状态良好的前后比，同时也有利于天线的小型化。The switchable director is placed close to the dielectric resonator, which can shift the field in the dielectric resonator to ensure a good front-to-back ratio of each state, and is also beneficial to the miniaturization of the antenna.
如图3所示，本发明所涉及的一种具备端射波束扫描功能的方向图可重构天线，在所有状态下均可保持良好的阻抗匹配，阻抗带宽为0.38GHz到0.44GHz。As shown in FIG. 3 , a pattern reconfigurable antenna with an endfire beam scanning function according to the present invention can maintain good impedance matching in all states, and the impedance bandwidth is 0.38 GHz to 0.44 GHz.
如图4所示，本发明所涉及的一种具备端射波束扫描功能的方向图可重构天线具备低于-20dB的交叉极化，前后比大于15dB，端射性能良好。As shown in FIG. 4 , a pattern reconfigurable antenna with an endfire beam scanning function according to the present invention has a cross-polarization lower than -20dB, a front-to-back ratio greater than 15dB, and good endfire performance.
如图5所示，本发明所涉及的一种具备端射波束扫描功能的方向图可重构天线，在不同状态下方向图的一致性较好，峰值增益波动不超过0.5dB。本发明的波束扫描角度为±48°，3dB增益覆盖范围达到±80°以上。As shown in FIG. 5 , the pattern reconfigurable antenna with endfire beam scanning function involved in the present invention has good pattern consistency in different states, and the peak gain fluctuation does not exceed 0.5 dB. The beam scanning angle of the present invention is ±48°, and the 3dB gain coverage reaches more than ±80°.
本发明利用可切换引向器获得9个不同辐射方向的波束,相邻波束之间的间隔角度很小,能够实现接近连续的端射波束扫描。靠近介质谐振器放置的可切换引向器能够使得介质中的场分布发生偏移，有利于保证各状态良好的前后比，同时有利于天线的小型化。本发明利用介质谐振器作为辐射单元，天线的辐射效率较金属的方向图可重构天线高。介质谐振器的形状为圆柱形,工作模式为TE01δ模式；因此，不同状态下天线方向图的一致性较好。介质谐振器为单一介电常数的介质块，易于加工；相对介电常数在20左右，相对较高，有利于获得较小的天线尺寸。The invention utilizes a switchable director to obtain nine beams with different radiation directions, the interval angle between adjacent beams is very small, and can realize nearly continuous end-fire beam scanning. The switchable director placed close to the dielectric resonator can shift the field distribution in the medium, which is beneficial to ensure a good front-to-back ratio of each state, and is also beneficial to the miniaturization of the antenna. The invention uses the dielectric resonator as the radiation unit, and the radiation efficiency of the antenna is higher than that of the reconfigurable metal antenna. The shape of the dielectric resonator is cylindrical, and the working mode is TE 01δ mode; therefore, the consistency of the antenna pattern in different states is good. The dielectric resonator is a dielectric block with a single dielectric constant, which is easy to process; the relative dielectric constant is about 20, which is relatively high, which is conducive to obtaining a smaller antenna size.
以上所述的具体实施方案，对本发明的目的、技术方案和有益效果进行了进一步的详细说明，所应理解的是，以上所述仅为本发明的具体实施方案而已，并非用以限定本发明的范围，任何本领域的技术人员，在不脱离本发明的构思和原则的前提下所做出的等同变化与修改，均应属于本发明保护的范围。The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concepts and principles of the present invention shall fall within the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099642.6A CN114374078B (en) | 2022-01-27 | 2022-01-27 | A Pattern Reconfigurable Antenna with Endfire Beam Scanning Function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099642.6A CN114374078B (en) | 2022-01-27 | 2022-01-27 | A Pattern Reconfigurable Antenna with Endfire Beam Scanning Function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114374078A CN114374078A (en) | 2022-04-19 |
| CN114374078B true CN114374078B (en) | 2023-08-01 |
Family
ID=81145662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210099642.6A Active CN114374078B (en) | 2022-01-27 | 2022-01-27 | A Pattern Reconfigurable Antenna with Endfire Beam Scanning Function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114374078B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118630480B (en) * | 2024-07-02 | 2025-03-07 | 南通大学 | A multi-mode radiating dipole antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430914A (en) * | 2020-04-28 | 2020-07-17 | 深圳大学 | A Pattern Reconfigurable Patch Antenna |
| CN111834739A (en) * | 2020-07-14 | 2020-10-27 | 南通大学 | A four-mode broadband high-gain differential dielectric resonator antenna |
| CN113300090A (en) * | 2021-05-27 | 2021-08-24 | 南通大学 | Differential feed directional diagram reconfigurable dielectric patch antenna |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360133B (en) * | 2000-03-11 | 2002-01-23 | Univ Sheffield | Multi-segmented dielectric resonator antenna |
| CN101872894A (en) * | 2010-04-01 | 2010-10-27 | 电子科技大学 | A Reconfigurable Dielectric Resonant Antenna and Its Phased Array |
| KR20140021380A (en) * | 2012-08-10 | 2014-02-20 | 삼성전기주식회사 | Dielectric resonator array antenna |
| US10965032B2 (en) * | 2018-01-08 | 2021-03-30 | City University Of Hong Kong | Dielectric resonator antenna |
| CN109066073B (en) * | 2018-07-18 | 2020-02-18 | 华南理工大学 | A Planar Endfire Pattern Reconfigurable Antenna |
| US11411326B2 (en) * | 2020-06-04 | 2022-08-09 | City University Of Hong Kong | Broadbeam dielectric resonator antenna |
| CN111916906B (en) * | 2020-08-17 | 2024-06-14 | 大连理工大学 | Low-profile high-gain broadband dielectric resonator antenna |
| CN113809531B (en) * | 2021-09-01 | 2023-08-01 | 南通大学 | Directional diagram reconfigurable antenna based on switchable director |
-
2022
- 2022-01-27 CN CN202210099642.6A patent/CN114374078B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430914A (en) * | 2020-04-28 | 2020-07-17 | 深圳大学 | A Pattern Reconfigurable Patch Antenna |
| CN111834739A (en) * | 2020-07-14 | 2020-10-27 | 南通大学 | A four-mode broadband high-gain differential dielectric resonator antenna |
| CN113300090A (en) * | 2021-05-27 | 2021-08-24 | 南通大学 | Differential feed directional diagram reconfigurable dielectric patch antenna |
Non-Patent Citations (2)
| Title |
|---|
| OAM介质谐振器阵列天线的研究;常伟;孙学宏;刘丽萍;薛嘉南;;电子技术应用(第08期);全文 * |
| 方向图可重构的平面准八木天线的设计与实现;汪圣杰;顾涓涓;胡国华;;合肥学院学报(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114374078A (en) | 2022-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113300090B (en) | Differential feed directional diagram reconfigurable dielectric patch antenna | |
| CN108899644B (en) | Low-profile, miniaturized and high-isolation dual-polarized patch antenna unit | |
| CN103825101B (en) | Broadband Panel Array Antenna | |
| CN107230840B (en) | High gain broadband microstrip patch antenna | |
| CN109301473A (en) | 5G millimeter wave broadband differential antennae | |
| CN102299418A (en) | Multilayer broadband microstrip antenna | |
| CN107634322B (en) | Double-frequency high-gain omnidirectional antenna | |
| CN105490018A (en) | Patch antenna | |
| CN107293863A (en) | A kind of broad beam broadband dual polarized antenna | |
| CN107978858A (en) | A kind of directional diagram reconstructable aerial for working in 60GHz frequency ranges | |
| CN109301462B (en) | Double-wide-surface magnetoelectric dipole base station antenna applied to 5G communication | |
| CN113013626B (en) | Directional diagram reconfigurable end-fire antenna | |
| CN114976651A (en) | Single-feed ultra-wideband circularly-polarized wide-beam magnetoelectric dipole antenna | |
| CN106299643A (en) | A kind of wideband dual polarized beam antenna of small-sized low section for mobile communication | |
| CN114256614B (en) | Ultra-wideband planar antenna array applied to millimeter wave communication system | |
| CN108777355A (en) | A kind of low section broad-band antenna | |
| CN106356618B (en) | A microwave high-frequency dual-polarization small base station panel antenna | |
| CN110690562A (en) | 5G standard 3.5GHz broadband small-sized dual-polarized oscillator | |
| CN114374078B (en) | A Pattern Reconfigurable Antenna with Endfire Beam Scanning Function | |
| CN113363704A (en) | Ultra-wideband double-slot dual-polarization Vivaldi antenna and application | |
| CN109411886B (en) | Broadband high-gain pattern reconfigurable antenna and communication equipment | |
| CN109088157A (en) | A kind of Bipolarization antenna for base station based on shared doublet arm | |
| CN113809531B (en) | Directional diagram reconfigurable antenna based on switchable director | |
| CN112216992A (en) | Two-way type frequency reconfigurable meander line antenna | |
| CN209448013U (en) | A kind of antenna element and array antenna applied to 5G |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |