WO2019029126A1 - Graphene-based coupler with adjustable broadband power distribution ratio - Google Patents
Graphene-based coupler with adjustable broadband power distribution ratio Download PDFInfo
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- WO2019029126A1 WO2019029126A1 PCT/CN2018/072378 CN2018072378W WO2019029126A1 WO 2019029126 A1 WO2019029126 A1 WO 2019029126A1 CN 2018072378 W CN2018072378 W CN 2018072378W WO 2019029126 A1 WO2019029126 A1 WO 2019029126A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
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- the present invention relates to the field of terahertz communication technologies, and in particular, to a graphene-based broadband power split ratio tunable coupler.
- Couplers are one of the most widely used components in microwave and radar feeder technology.
- the coupler realizes the transmission of signal power between the communication systems, realizing the proportional distribution of power and the like.
- the prior art couplers are mostly made of metal. After the structure and size of the coupler are fixed, the operating frequency and power distribution ratio (referred to as the power ratio) are also determined, and cannot be dynamically adjusted. When the power distribution ratio of the coupler needs to be adjusted, only the coupler can be replaced, which is costly and complicated to operate.
- the present invention provides a graphene-based wideband power ratio tunable coupler, comprising a dielectric plate, a resonant ring disposed on a surface of the dielectric plate, a first port, a second port, and a third a port and a fourth port, and a metal patch disposed on a lower surface of the dielectric board, wherein:
- the resonant ring includes a U-shaped upper portion and a U-shaped bottom opposite to each other, and the U-shaped upper portion and the U-shaped bottom portion are connected by a first rectangular portion and a second rectangular portion; the U-shaped upper portion and the U-shaped bottom portion are on the inner wall a first graphene patch is disposed on each of the first graphene patches, and a second graphene patch is disposed on each of the inner walls of the first rectangular portion and the second rectangular portion;
- a first metal strip is connected to each of the two sides of the U-shaped upper portion and the U-shaped bottom portion, and a pair of second metal strips are symmetrically disposed on the upper and lower sides of each of the first metal strips.
- the outer ends of the metal strips are each connected with a rectangular metal piece to form a first port, a second port, a third port and a fourth port, respectively;
- the metal patch covers a lower surface of the dielectric plate.
- the metal patch has the same size as the dielectric plate; the U-shaped upper portion and the U-shaped bottom have the same size; and the first rectangular portion and the second rectangular portion have the same size.
- the thickness of the U-shaped upper portion and the U-shaped bottom is the same as the thickness of the first graphene patch; the thickness of the first rectangular portion and the second rectangular portion is different from the thickness of the second graphene patch The thickness is the same.
- the U-shaped upper portion and the U-shaped bottom have a width of 0.5 ⁇ m
- the U-shaped upper portion and the U-shaped bottom portion have a length of 4.55 ⁇ m
- the U-shaped upper portion and the U-shaped bottom portion have a height of 10 ⁇ m.
- the U-shaped upper portion and the U-shaped bottom have an opening width of 3.55 ⁇ m; the first rectangular portion and the second rectangular portion have a length of 3.15 ⁇ m, and the first rectangular portion and the second rectangular portion have a height of 17 ⁇ m,
- the horizontal distance between the first rectangular portion and the second rectangular portion is 1.35 ⁇ m; the length of the first metal strip is 23 ⁇ m, the height of the first metal strip is 0.7 ⁇ m; and the length of the second metal strip is 23 Micrometer, the height of the second metal strip is 0.2 micrometer; the vertical distance between the first metal strip and a pair of second metal strips symmetrically disposed on the upper and lower sides thereof is 0.2 micrometer; the first metal strip is upper and lower The horizontal distance of the pair of second metal strips disposed laterally symmetrically is 1.75 micrometers; the length of the rectangular metal sheet is 10 micrometers, and the height of the rectangular metal strip is 1.9 micrometers.
- the first graphene patch has a width of 0.5 micrometers
- the second graphene patch has a width of 0.55 micrometers.
- the chemical potential of the first graphene patch and the chemical potential of the second graphene patch are adjusted from 0 eV to 0.3 eV.
- the dielectric plate is a silicon dioxide substrate having a thickness of 1 micrometer and a dielectric constant of 3.8.
- the graphene-based broadband power ratio tunable coupler of the present invention adjusts the first by bonding the first graphene patch and the second graphene patch on the inner wall of the resonant ring.
- the chemical potential loaded on the graphene patch and the second graphene patch can be dynamically adjusted by using the excellent electro-optic effect of the graphene.
- Figure 1 is a block diagram showing a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
- FIG. 2 is a schematic view showing the structure of a surface of a dielectric plate of a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
- FIG. 3 is a schematic diagram showing the S-parameter results of the reflection coefficient of the graphene-based wideband power ratio tunable coupler simulated by the electromagnetic simulation software.
- FIG. 4 is a schematic diagram showing the isolation results between the first port and the fourth port when the graphene-based wideband power split ratio tunable coupler is simulated by the electromagnetic simulation software.
- FIG. 5 is a schematic diagram showing the phase difference result between the second port and the third port when the graphene-based wideband power ratio tunable coupler is simulated by the electromagnetic simulation software.
- FIG. 6 is a schematic diagram showing the power distribution ratio results of the second port and the third port when the graphene-based wideband power ratio tunable coupler is simulated by the electromagnetic simulation software.
- FIG. 1 is a schematic structural view of a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
- 2 is a schematic view showing the structure of a surface of a dielectric plate of a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
- the graphene-based broadband power split ratio tunable coupler 1 includes a dielectric plate 10, a resonant ring 11 disposed on an upper surface of the dielectric plate 10, a first port 12, and a second port 13, The third port 14 and the fourth port 15 and the metal patch 16 disposed on the lower surface of the dielectric board 10.
- the material of the resonant ring 11, the first port 12, the second port 13, the third port 14, and the fourth port 15 may be metal.
- the size of the metal patch 16 is the same as the size of the dielectric sheet 10.
- the resonant ring 11 includes a U-shaped upper portion 111 and a U-shaped bottom portion 112 that are oppositely disposed, and the U-shaped upper portion 111 and the U-shaped bottom portion 112 are connected by a first rectangular portion 113 and a second rectangular portion 114.
- the U-shaped upper portion 111 and the U-shaped bottom portion 112 have the same size; the first rectangular portion 113 and the second rectangular portion 114 have the same size.
- Such dimensions include, but are not limited to, length, height, width.
- the U-shaped upper portion 111, the U-shaped bottom portion 112, the first rectangular portion 113, and the second rectangular portion 114 may be of a unitary structure.
- the U-shaped upper portion 111 and the vertical center axis of the U-shaped bottom portion 112 coincide, and the first rectangular portion 113 and the second rectangular portion 114 are symmetrical about the central axis.
- the first graphene patch 115 is disposed on the inner wall of the U-shaped upper portion 111 and the U-shaped bottom portion 112, and the second graphene is disposed on the inner wall of the first rectangular portion 113 and the second rectangular portion 114.
- Patch 116 is disposed on the inner wall of the first rectangular portion 113 and the second rectangular portion 114.
- the thickness of the U-shaped upper portion 111 and the U-shaped bottom portion 112 is the same as the thickness of the first graphene patch 115; the thickness of the first rectangular portion 113 and the second rectangular portion 114 and the second graphene sticker Sheet 116 has the same thickness.
- the length of the first graphene patch 115 is the same as the length of the U-shaped inner wall of the first rectangular portion 113 and the second rectangular portion 114, and the length of the second graphene patch 116 is different from the first rectangle.
- the height of the portion 113 and the second rectangular portion 114 are the same.
- a first metal strip 117 is connected to each of the two sides of the open end of the U-shaped upper portion 111 and the U-shaped bottom portion 112.
- a pair of second metal strips 118 are symmetrically disposed on the upper and lower sides of each of the first metal strips 117.
- a rectangular metal piece 119 is connected to the outer end of the second metal strip 118 to form a first port 12, a second port 13, a third port 14, and a fourth port 15, respectively.
- the first port 12 is an input end
- the second port 13 is a through end
- the third port 14 is a coupling end
- the fourth port 15 is an isolated end.
- the respective pairs of second metal strips 118 are symmetrical about a horizontal center axis of the joined rectangular metal sheets 119.
- the metal patch 16 covers the lower surface of the dielectric sheet 10.
- the dielectric plate was a silica substrate having a thickness of 1 ⁇ m and a dielectric constant of 3.8.
- the metal patch may be copper.
- the U-shaped upper portion 111 and the U-shaped bottom portion 112 have a width W1 of 0.5 ⁇ m, and the U-shaped upper portion 111 and the U-shaped bottom portion 112 have a length L1 of 4.55 ⁇ m, and the U-shaped upper portion and the U-shaped portion
- the height L2 of the bottom portion is 10 micrometers, and the opening width S1 of the U-shaped upper portion 111 and the U-shaped bottom portion 112 is 3.55 micrometers; the length W2 of the first rectangular portion 113 and the second rectangular portion 114 is 3.15 micrometers, the first The height L3 of one rectangular portion 113 and the second rectangular portion 114 is 17 micrometers, the horizontal distance S2 of the first rectangular portion 113 and the second rectangular portion 114 is 1.35 micrometers; and the length L6 of the first metal strip 117 is 23 Micron, the height W3 of the first metal strip 117 is 0.7 micron; the length L4 of the second metal strip 118 is 23 micrometers, and the height W
- the width of the first graphene patch 115 is 0.5 ⁇ m, and the width Wb of the second graphene patch 116 is 0.55 ⁇ m; the chemical potential of the first graphene patch 115 and the second graphite The chemical potential of the ene patch is adjusted from 0 eV to 0.3 eV. It should be noted that by applying different voltages to the first graphene patch 115 and the second graphene patch 116, different chemistries can be imparted to the first graphene patch 115 and the second graphene patch 116. Potential.
- FIG. 3 is a schematic diagram of S-parameter results of a reflection coefficient of a graphene-based broadband power-divided ratio tunable coupler simulated by an electromagnetic simulation software.
- five simulation cases are adopted.
- the chemical potential loaded on the first graphene patch 115 is ⁇ c1
- the chemical loaded on the second graphene patch The potential is ⁇ c2.
- the graphene-based broadband power split ratio tunable coupler 1 has a reflection coefficient greater than -10 dB, and the operating frequency of the graphene-based broadband power split ratio tunable coupler 1 is 1.47-2.3 THz (terahertz) for broadband characteristics.
- FIG. 4 is an isolation between the first port 12 (input) and the fourth port 15 (isolated) when the graphene-based wideband power ratio tunable coupler is simulated by electromagnetic simulation software. Schematic diagram of the results. As can be seen from Figure 4, the isolation between the first port 12 (input) and the fourth port 15 (isolated) of the above five simulation cases is less than -10 dB in the 1.47-2.3 THz frequency range. The graphene-based broadband power split ratio tunable coupler 1 works well in the 1.47-2.3 THz frequency range.
- FIG. 5 is a phase diagram of a second port 13 (straight end) and a third port 14 (coupling end) of a graphene-based broadband power split ratio tunable coupler emulated by the electromagnetic simulation software. Schematic diagram of the difference results. It can be seen from FIG. 5 that the phase difference between the second port 13 (straight end) and the third port 14 (coupling end) of the above five simulation cases is around 90 degrees, and the deviation is between 86.2 degrees and 92.2 degrees.
- the graphene-based broadband power split ratio tunable coupler 1 works well in the 1.47-2.3 THz frequency range.
- FIG. 6 is a power distribution ratio of the second port 13 (straight end) and the third port 14 (coupling end) of the graphene-based broadband power ratio tunable coupler according to the present invention simulated by electromagnetic simulation software. The result is schematic.
- the graphene-based broadband power ratio tunable coupler of the present invention adjusts the first by bonding the first graphene patch and the second graphene patch on the inner wall of the resonant ring.
- the chemical potential loaded on the graphene patch and the second graphene patch can be dynamically adjusted by using the excellent electro-optic effect of the graphene.
- the graphene-based broadband power ratio tunable coupler of the present invention adjusts the first by bonding the first graphene patch and the second graphene patch on the inner wall of the resonant ring.
- the chemical potential loaded on the graphene patch and the second graphene patch can be dynamically adjusted by using the excellent electro-optic effect of the graphene.
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Abstract
The present invention provides a graphene-based coupler with an adjustable broadband power distribution ratio, comprising a dielectric slab, a resonant ring provided on the upper surface of the dielectric slab, and a metal patch provided on the lower surface of the dielectric slab; the resonant ring comprises a U-shaped upper portion and a U-shaped bottom which have oppositely disposed openings; the U-shaped upper portion and the U-shaped bottom are connected by means of a first rectangular portion and a second rectangular portion; first graphene patches are respectively attached to the inner walls of the U-shaped upper portion and the U-shaped bottom; second graphene patches are respectively attached to the inner walls of the first and second rectangular portions; a first metal strip is respectively connected to either side of the open end of each of the U-shaped upper portion and the U-shaped bottom; a pair of second metal strips are symmetrically arranged on the upper and lower sides of each of the first metal strips; the outer ends of each pair of second metal strips are connected to a rectangular metal sheet to form a first port, a second port, a third port and a fourth port. By using the excellent electrooptic effect of graphene, the present invention can implement dynamic adjustment of the power distribution ratio of a coupler.
Description
本发明涉及太赫兹通信技术领域,尤其涉及一种基于石墨烯的宽带功分比可调耦合器。The present invention relates to the field of terahertz communication technologies, and in particular, to a graphene-based broadband power split ratio tunable coupler.
耦合器是微波与雷达馈线技术中广泛应用的元件之一。耦合器在通信***间实现信号功率的传递,实现按比例对功率的分配等。现有技术的耦合器多为金属材质,在耦合器的结构和尺寸固定后,其工作频率和功率分配比(简称功分比)也已确定,不可动态调整。当耦合器的功率分配比需要调整的时候,只能更换耦合器,成本高,且操作复杂。Couplers are one of the most widely used components in microwave and radar feeder technology. The coupler realizes the transmission of signal power between the communication systems, realizing the proportional distribution of power and the like. The prior art couplers are mostly made of metal. After the structure and size of the coupler are fixed, the operating frequency and power distribution ratio (referred to as the power ratio) are also determined, and cannot be dynamically adjusted. When the power distribution ratio of the coupler needs to be adjusted, only the coupler can be replaced, which is costly and complicated to operate.
本发明的目的在于提供一种基于石墨烯的宽带功分比可调耦合器,旨在解决现有技术中的无法实现耦合器的功率分配比动态调整的技术问题。It is an object of the present invention to provide a broadband power-to-scale ratio tunable coupler based on graphene, which aims to solve the technical problem that the power distribution ratio dynamic adjustment of the coupler cannot be realized in the prior art.
为实现上述目的,本发明提供了一种基于石墨烯的宽带功分比可调耦合器,包括介质板、设置于所述介质板上表面的谐振环、第一端口、第二端口、第三端口和第四端口,以及设置于所述介质板下表面的金属贴片,其中:To achieve the above object, the present invention provides a graphene-based wideband power ratio tunable coupler, comprising a dielectric plate, a resonant ring disposed on a surface of the dielectric plate, a first port, a second port, and a third a port and a fourth port, and a metal patch disposed on a lower surface of the dielectric board, wherein:
所述谐振环包括开口相对设置的U形上部和U型底部,所述U形上部和U型底部通过第一矩形部和第二矩形部连接;所述U形上部和U型底部的内壁上各贴合设置第一石墨烯贴片,所述第一矩形部和第二矩形部的内壁上各贴合设置第二石墨烯贴片;The resonant ring includes a U-shaped upper portion and a U-shaped bottom opposite to each other, and the U-shaped upper portion and the U-shaped bottom portion are connected by a first rectangular portion and a second rectangular portion; the U-shaped upper portion and the U-shaped bottom portion are on the inner wall a first graphene patch is disposed on each of the first graphene patches, and a second graphene patch is disposed on each of the inner walls of the first rectangular portion and the second rectangular portion;
所述U形上部和U型底部的开口端部两侧各连接一第一金属条,每个所述第一金属条的上下两侧对称设置一对第二金属条,每对所述第二金属条的外端部均连接一矩形金属片分别形成第一端口、第二端口、第三端口和第四端口; a first metal strip is connected to each of the two sides of the U-shaped upper portion and the U-shaped bottom portion, and a pair of second metal strips are symmetrically disposed on the upper and lower sides of each of the first metal strips. The outer ends of the metal strips are each connected with a rectangular metal piece to form a first port, a second port, a third port and a fourth port, respectively;
所述金属贴片覆盖所述介质板的下表面。The metal patch covers a lower surface of the dielectric plate.
优选的,所述金属贴片的尺寸与所述介质板的尺寸相同;所述U形上部和U型底部的尺寸相同;所述第一矩形部和第二矩形部的尺寸相同。Preferably, the metal patch has the same size as the dielectric plate; the U-shaped upper portion and the U-shaped bottom have the same size; and the first rectangular portion and the second rectangular portion have the same size.
优选的,所述U形上部和U型底部的厚度与所述第一石墨烯贴片的厚度相同;所述第一矩形部和第二矩形部的厚度与所述第二石墨烯贴片的厚度相同。Preferably, the thickness of the U-shaped upper portion and the U-shaped bottom is the same as the thickness of the first graphene patch; the thickness of the first rectangular portion and the second rectangular portion is different from the thickness of the second graphene patch The thickness is the same.
优选的,所述U形上部和U型底部的宽度为0.5微米,所述U形上部和U型底部的长度为4.55微米,所述U形上部和U型底部的高度为10微米,所述U形上部和U型底部的开口宽度为3.55微米;所述第一矩形部和第二矩形部的长度为3.15微米、所述第一矩形部和第二矩形部的高度为17微米,所述第一矩形部和第二矩形部的水平距离为1.35微米;所述第一金属条的长度为23微米,所述第一金属条的高度为0.7微米;所述第二金属条的长度为23微米,所述第二金属条的高度为0.2微米;所述第一金属条与其上下两侧对称设置的一对第二金属条的垂直距离均为0.2微米;所述第一金属条与其上下两侧对称设置的一对第二金属条的水平距离均为1.75微米;所述矩形金属片的长度为10微米,所述矩形金属片的高度为1.9微米。Preferably, the U-shaped upper portion and the U-shaped bottom have a width of 0.5 μm, the U-shaped upper portion and the U-shaped bottom portion have a length of 4.55 μm, and the U-shaped upper portion and the U-shaped bottom portion have a height of 10 μm. The U-shaped upper portion and the U-shaped bottom have an opening width of 3.55 μm; the first rectangular portion and the second rectangular portion have a length of 3.15 μm, and the first rectangular portion and the second rectangular portion have a height of 17 μm, The horizontal distance between the first rectangular portion and the second rectangular portion is 1.35 μm; the length of the first metal strip is 23 μm, the height of the first metal strip is 0.7 μm; and the length of the second metal strip is 23 Micrometer, the height of the second metal strip is 0.2 micrometer; the vertical distance between the first metal strip and a pair of second metal strips symmetrically disposed on the upper and lower sides thereof is 0.2 micrometer; the first metal strip is upper and lower The horizontal distance of the pair of second metal strips disposed laterally symmetrically is 1.75 micrometers; the length of the rectangular metal sheet is 10 micrometers, and the height of the rectangular metal strip is 1.9 micrometers.
优选的,所述第一石墨烯贴片的宽度为0.5微米,所述第二石墨烯贴片的宽度为0.55微米。Preferably, the first graphene patch has a width of 0.5 micrometers, and the second graphene patch has a width of 0.55 micrometers.
优选的,所述第一石墨烯贴片的化学势和所述第二石墨烯贴片的化学势的调整区间为0电子伏特至0.3电子伏特。Preferably, the chemical potential of the first graphene patch and the chemical potential of the second graphene patch are adjusted from 0 eV to 0.3 eV.
优选的,所述介质板为厚度为1微米,介电常数为3.8的二氧化硅基板。Preferably, the dielectric plate is a silicon dioxide substrate having a thickness of 1 micrometer and a dielectric constant of 3.8.
相较于现有技术,本发明所述基于石墨烯的宽带功分比可调耦合器通过在谐振环的内壁上贴合第一石墨烯贴片和第二石墨烯贴片,通过调节第一石墨烯贴片和第二石墨烯贴片上加载的化学势,运用石墨烯优异的电光效应,可以实现耦合器的功率分配比可动态调整。Compared with the prior art, the graphene-based broadband power ratio tunable coupler of the present invention adjusts the first by bonding the first graphene patch and the second graphene patch on the inner wall of the resonant ring. The chemical potential loaded on the graphene patch and the second graphene patch can be dynamically adjusted by using the excellent electro-optic effect of the graphene.
图1是本发明基于石墨烯的宽带功分比可调耦合器优选实施例的结构示意图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
图2是本发明基于石墨烯的宽带功分比可调耦合器优选实施例的介质板上表面的结构示意图。2 is a schematic view showing the structure of a surface of a dielectric plate of a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
图3是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时反射系数的S参数结果示意图。FIG. 3 is a schematic diagram showing the S-parameter results of the reflection coefficient of the graphene-based wideband power ratio tunable coupler simulated by the electromagnetic simulation software.
图4是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时第一端口和第四端口之间的隔离度结果示意图。4 is a schematic diagram showing the isolation results between the first port and the fourth port when the graphene-based wideband power split ratio tunable coupler is simulated by the electromagnetic simulation software.
图5是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时第二端口和第三端口之间的相位差结果示意图。FIG. 5 is a schematic diagram showing the phase difference result between the second port and the third port when the graphene-based wideband power ratio tunable coupler is simulated by the electromagnetic simulation software.
图6是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时第二端口和第三端口的功率分配比结果示意图。6 is a schematic diagram showing the power distribution ratio results of the second port and the third port when the graphene-based wideband power ratio tunable coupler is simulated by the electromagnetic simulation software.
下面结合具体实施例对本发明做进一步的详细说明,以下实施例是对本发明的解释,本发明并不局限于以下实施例。The present invention will be further described in detail below with reference to the specific embodiments. The following examples are illustrative of the invention, and the invention is not limited to the following examples.
参考图1、图2所示,图1是本发明基于石墨烯的宽带功分比可调耦合器优选实施例的结构示意图。图2是本发明基于石墨烯的宽带功分比可调耦合器优选实施例的介质板上表面的结构示意图。Referring to FIG. 1 and FIG. 2, FIG. 1 is a schematic structural view of a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention. 2 is a schematic view showing the structure of a surface of a dielectric plate of a preferred embodiment of a graphene-based broadband power split ratio tunable coupler according to the present invention.
在本实施例中,所述基于石墨烯的宽带功分比可调耦合器1包括介质板10、设置于所述介质板10上表面的谐振环11、第一端口12、第二端口13、第三端口14和第四端口15,以及设置于所述介质板10下表面的金属贴片16。所述谐振环11、第一端口12、第二端口13、第三端口14和第四端口15的材质可以为金属。作为本发明的优选实施例,所述金属贴片16的尺寸与所述介质板10的尺寸相同。In the present embodiment, the graphene-based broadband power split ratio tunable coupler 1 includes a dielectric plate 10, a resonant ring 11 disposed on an upper surface of the dielectric plate 10, a first port 12, and a second port 13, The third port 14 and the fourth port 15 and the metal patch 16 disposed on the lower surface of the dielectric board 10. The material of the resonant ring 11, the first port 12, the second port 13, the third port 14, and the fourth port 15 may be metal. As a preferred embodiment of the present invention, the size of the metal patch 16 is the same as the size of the dielectric sheet 10.
所述谐振环11包括开口相对设置的U形上部111和U型底部112,所述U形上部111和U型底部112通过第一矩形部113和第二矩形部114连接。所述U形上部111和U型底部112的尺寸相同;所述第一矩形部113和第二矩形部114的尺寸相同。所述尺寸包括但不限于:长度、高度、宽度。作为本发明的优选实施例,所述U形上部111 、U型底部112、第一矩形部113和第二矩形部114可以为一体结构。作为本发明的优选实施例,所述U形上部111和U型底部112的垂直中轴线重合,所述第一矩形部113和第二矩形部114关于该中轴线对称。所述U形上部111和U型底部112的内壁上各贴合设置第一石墨烯贴片115,所述第一矩形部113和第二矩形部114的内壁上各贴合设置第二石墨烯贴片116。所述U形上部111和U型底部112的厚度与所述第一石墨烯贴片115的厚度相同;所述第一矩形部113和第二矩形部114的厚度与所述第二石墨烯贴片116的厚度相同。所述第一石墨烯贴片115的长度与所述第一矩形部113和第二矩形部114的U形内壁的长度相同,所述第二石墨烯贴片116的长度与所述第一矩形部113和第二矩形部114的高度相同。The resonant ring 11 includes a U-shaped upper portion 111 and a U-shaped bottom portion 112 that are oppositely disposed, and the U-shaped upper portion 111 and the U-shaped bottom portion 112 are connected by a first rectangular portion 113 and a second rectangular portion 114. The U-shaped upper portion 111 and the U-shaped bottom portion 112 have the same size; the first rectangular portion 113 and the second rectangular portion 114 have the same size. Such dimensions include, but are not limited to, length, height, width. As a preferred embodiment of the present invention, the U-shaped upper portion 111, the U-shaped bottom portion 112, the first rectangular portion 113, and the second rectangular portion 114 may be of a unitary structure. As a preferred embodiment of the present invention, the U-shaped upper portion 111 and the vertical center axis of the U-shaped bottom portion 112 coincide, and the first rectangular portion 113 and the second rectangular portion 114 are symmetrical about the central axis. The first graphene patch 115 is disposed on the inner wall of the U-shaped upper portion 111 and the U-shaped bottom portion 112, and the second graphene is disposed on the inner wall of the first rectangular portion 113 and the second rectangular portion 114. Patch 116. The thickness of the U-shaped upper portion 111 and the U-shaped bottom portion 112 is the same as the thickness of the first graphene patch 115; the thickness of the first rectangular portion 113 and the second rectangular portion 114 and the second graphene sticker Sheet 116 has the same thickness. The length of the first graphene patch 115 is the same as the length of the U-shaped inner wall of the first rectangular portion 113 and the second rectangular portion 114, and the length of the second graphene patch 116 is different from the first rectangle. The height of the portion 113 and the second rectangular portion 114 are the same.
所述U形上部111和U型底部112的开口端部两侧各连接一第一金属条117,每个所述第一金属条117的上下两侧对称设置一对第二金属条118,每对所述第二金属条118的外端部均连接一矩形金属片119分别形成第一端口12、第二端口13、第三端口14和第四端口15。所述第一端口12为输入端,第二端口13为直通端,第三端口14为耦合端,第四端口15为隔离端。所述各对第二金属条118关于连接的矩形金属片119的水平中轴线对称。A first metal strip 117 is connected to each of the two sides of the open end of the U-shaped upper portion 111 and the U-shaped bottom portion 112. A pair of second metal strips 118 are symmetrically disposed on the upper and lower sides of each of the first metal strips 117. A rectangular metal piece 119 is connected to the outer end of the second metal strip 118 to form a first port 12, a second port 13, a third port 14, and a fourth port 15, respectively. The first port 12 is an input end, the second port 13 is a through end, the third port 14 is a coupling end, and the fourth port 15 is an isolated end. The respective pairs of second metal strips 118 are symmetrical about a horizontal center axis of the joined rectangular metal sheets 119.
所述金属贴片16覆盖所述介质板10的下表面。所述介质板为厚度为1微米,介电常数为3.8的二氧化硅基板。所述金属贴片可以为铜质。The metal patch 16 covers the lower surface of the dielectric sheet 10. The dielectric plate was a silica substrate having a thickness of 1 μm and a dielectric constant of 3.8. The metal patch may be copper.
在本实施例中,所述U形上部111和U型底部112的宽度W1为0.5微米,所述U形上部111和U型底部112的长度L1为4.55微米,所述U形上部和U型底部的高度L2为10微米,所述U形上部111和U型底部112的开口宽度S1为3.55微米;所述第一矩形部113和第二矩形部114的长度W2为3.15微米、所述第一矩形部113和第二矩形部114的高度L3为17微米,所述第一矩形部113和第二矩形部114的水平距离S2为1.35微米;所述第一金属条117的长度L6为23微米,所述第一金属条117的高度W3为0.7微米;所述第二金属条118的长度L4为23微米,所述第二金属条118的高度W4为0.2微米;所述第一金属条117与其上下两侧对称设置的一对第二金属条118的垂直距离S3均为0.2微米;所述第一金属条117与其上下两侧对称设置的一对第二金属条118的水平距离S4均为1.75微米;所述矩形金属片119的长度L5为10微米,所述矩形金属片119的高度W5为1.9微米。In the present embodiment, the U-shaped upper portion 111 and the U-shaped bottom portion 112 have a width W1 of 0.5 μm, and the U-shaped upper portion 111 and the U-shaped bottom portion 112 have a length L1 of 4.55 μm, and the U-shaped upper portion and the U-shaped portion The height L2 of the bottom portion is 10 micrometers, and the opening width S1 of the U-shaped upper portion 111 and the U-shaped bottom portion 112 is 3.55 micrometers; the length W2 of the first rectangular portion 113 and the second rectangular portion 114 is 3.15 micrometers, the first The height L3 of one rectangular portion 113 and the second rectangular portion 114 is 17 micrometers, the horizontal distance S2 of the first rectangular portion 113 and the second rectangular portion 114 is 1.35 micrometers; and the length L6 of the first metal strip 117 is 23 Micron, the height W3 of the first metal strip 117 is 0.7 micron; the length L4 of the second metal strip 118 is 23 micrometers, and the height W4 of the second metal strip 118 is 0.2 micrometer; the first metal strip The vertical distance S3 of the pair of second metal strips 118 symmetrically disposed on the upper and lower sides thereof is 0.2 micrometers; the horizontal distance S4 of the pair of second metal strips 118 symmetrically disposed on the upper and lower sides of the first metal strip 117 is 1.75 micrometers; the length L5 of the rectangular metal piece 119 is 10 micrometers, and the height W of the rectangular metal piece 119 5 is 1.9 microns.
所述第一石墨烯贴片115的宽度Wa为0.5微米,所述第二石墨烯贴片116的宽度Wb为0.55微米;所述第一石墨烯贴片115的化学势和所述第二石墨烯贴片的化学势的调整区间为0电子伏特至0.3电子伏特。需要说明的是,通过对第一石墨烯贴片115和第二石墨烯贴片116上施加不同的电压可以是实现对第一石墨烯贴片115和第二石墨烯贴片116赋予不同的化学势。The width of the first graphene patch 115 is 0.5 μm, and the width Wb of the second graphene patch 116 is 0.55 μm; the chemical potential of the first graphene patch 115 and the second graphite The chemical potential of the ene patch is adjusted from 0 eV to 0.3 eV. It should be noted that by applying different voltages to the first graphene patch 115 and the second graphene patch 116, different chemistries can be imparted to the first graphene patch 115 and the second graphene patch 116. Potential.
参考图3所示,图3是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时反射系数的S参数结果示意图。本发明实施例采用5个仿真案例,在所述5个仿真案例中,在所述第一石墨烯贴片115上加载的化学势为μc1,在所述第二石墨烯贴片上加载的化学势为μc2。案例1: μc1 = 0.3 eV(电子伏特), μc2 = 0 eV(电子伏特); 案例2: μc1 = 0 eV(电子伏特), μc2 = 0 eV(电子伏特); 案例3: μc1 = 0.1 eV(电子伏特), μc2 = 0.2 eV(电子伏特);案例4: μc1 = 0.1 eV(电子伏特), μc2 = 0.1 eV(电子伏特); 案例5: μc1 = 0 eV(电子伏特), μc2 = 0.2 eV(电子伏特)。从图3可以看出,所述基于石墨烯的宽带功分比可调耦合器1在反射系数大于-10 dB时,所述基于石墨烯的宽带功分比可调耦合器1的工作频率为1.47-2.3 THz(太赫兹),实现宽带特性。Referring to FIG. 3, FIG. 3 is a schematic diagram of S-parameter results of a reflection coefficient of a graphene-based broadband power-divided ratio tunable coupler simulated by an electromagnetic simulation software. In the embodiment of the present invention, five simulation cases are adopted. In the five simulation cases, the chemical potential loaded on the first graphene patch 115 is μc1, and the chemical loaded on the second graphene patch The potential is μc2. Case 1: μc1 = 0.3 eV (electron volts), μc2 = 0 eV (electron volts); Case 2: μc1 = 0 eV (electron volts), μc2 = 0 eV (electron volts); Case 3: μc1 = 0.1 eV ( Electron volts, μc2 = 0.2 eV (electron volts); Case 4: μc1 = 0.1 eV (electron volts), μc2 = 0.1 eV (electron volts); Case 5: μc1 = 0 eV (electron volts), μc2 = 0.2 eV (Electronic Volt). As can be seen from FIG. 3, the graphene-based broadband power split ratio tunable coupler 1 has a reflection coefficient greater than -10 dB, and the operating frequency of the graphene-based broadband power split ratio tunable coupler 1 is 1.47-2.3 THz (terahertz) for broadband characteristics.
参考图4所示,图4是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时第一端口12(输入端)和第四端口15(隔离端)之间的隔离度结果示意图。从图4中可以看出,在1.47-2.3 THz频率范围内,上述5个仿真案例的第一端口12(输入端)和第四端口15(隔离端)之间的隔离度均低于-10dB,所述基于石墨烯的宽带功分比可调耦合器1在1.47-2.3 THz频率范围内可良好工作。Referring to FIG. 4, FIG. 4 is an isolation between the first port 12 (input) and the fourth port 15 (isolated) when the graphene-based wideband power ratio tunable coupler is simulated by electromagnetic simulation software. Schematic diagram of the results. As can be seen from Figure 4, the isolation between the first port 12 (input) and the fourth port 15 (isolated) of the above five simulation cases is less than -10 dB in the 1.47-2.3 THz frequency range. The graphene-based broadband power split ratio tunable coupler 1 works well in the 1.47-2.3 THz frequency range.
参考图5所示,图5是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时第二端口13(直通端)和第三端口14(耦合端)之间的相位差结果示意图。从图5中可以看出上述5个仿真案例第二端口13(直通端)和第三端口14(耦合端)之间的相位差均在90度附近,偏差为86.2度到92.2度之间。所述基于石墨烯的宽带功分比可调耦合器1在1.47-2.3 THz频率范围内可良好工作。Referring to FIG. 5, FIG. 5 is a phase diagram of a second port 13 (straight end) and a third port 14 (coupling end) of a graphene-based broadband power split ratio tunable coupler emulated by the electromagnetic simulation software. Schematic diagram of the difference results. It can be seen from FIG. 5 that the phase difference between the second port 13 (straight end) and the third port 14 (coupling end) of the above five simulation cases is around 90 degrees, and the deviation is between 86.2 degrees and 92.2 degrees. The graphene-based broadband power split ratio tunable coupler 1 works well in the 1.47-2.3 THz frequency range.
参考图6所示,图6是本发明基于石墨烯的宽带功分比可调耦合器通过电磁仿真软件仿真时第二端口13(直通端)和第三端口14(耦合端)的功率分配比结果示意图。从图6中可以看出上述5个仿真案例在1.75 GHz处,案例1的第二端口13(直通端)和第三端口14(耦合端)的功率差值为5.4 dB;案例2的第二端口13(直通端)和第三端口14(耦合端)的功率差值为6.6 dB;案例3的第二端口13(直通端)和第三端口14(耦合端)的功率差值为8 dB;案例4的第二端口13(直通端)和第三端口14(耦合端)的功率差值为8.46 dB;案例5的第二端口13(直通端)和第三端口14(耦合端)的功率差值为9.56 dB。Referring to FIG. 6, FIG. 6 is a power distribution ratio of the second port 13 (straight end) and the third port 14 (coupling end) of the graphene-based broadband power ratio tunable coupler according to the present invention simulated by electromagnetic simulation software. The result is schematic. It can be seen from Figure 6 that the above five simulation cases are at 1.75 GHz, and the power difference between the second port 13 (straight end) and the third port 14 (coupling end) of Case 1 is 5.4 dB; the second of Case 2 The power difference between port 13 (straight through) and third port 14 (coupled) is 6.6 dB; the power difference between second port 13 (straight through) and third port 14 (coupled) in case 3 is 8 dB The power difference between the second port 13 (straight end) and the third port 14 (coupling end) of Case 4 is 8.46 dB; the second port 13 (straight end) and the third port 14 (coupling end) of Case 5 The power difference is 9.56 dB.
相较于现有技术,本发明所述基于石墨烯的宽带功分比可调耦合器通过在谐振环的内壁上贴合第一石墨烯贴片和第二石墨烯贴片,通过调节第一石墨烯贴片和第二石墨烯贴片上加载的化学势,运用石墨烯优异的电光效应,可以实现耦合器的功率分配比可动态调整。Compared with the prior art, the graphene-based broadband power ratio tunable coupler of the present invention adjusts the first by bonding the first graphene patch and the second graphene patch on the inner wall of the resonant ring. The chemical potential loaded on the graphene patch and the second graphene patch can be dynamically adjusted by using the excellent electro-optic effect of the graphene.
以上仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.
相较于现有技术,本发明所述基于石墨烯的宽带功分比可调耦合器通过在谐振环的内壁上贴合第一石墨烯贴片和第二石墨烯贴片,通过调节第一石墨烯贴片和第二石墨烯贴片上加载的化学势,运用石墨烯优异的电光效应,可以实现耦合器的功率分配比可动态调整。Compared with the prior art, the graphene-based broadband power ratio tunable coupler of the present invention adjusts the first by bonding the first graphene patch and the second graphene patch on the inner wall of the resonant ring. The chemical potential loaded on the graphene patch and the second graphene patch can be dynamically adjusted by using the excellent electro-optic effect of the graphene.
Claims (7)
- 一种基于石墨烯的宽带功分比可调耦合器,其特征在于,包括介质板、设置于所述介质板上表面的谐振环、第一端口、第二端口、第三端口和第四端口,以及设置于所述介质板下表面的金属贴片,其中:所述谐振环包括开口相对设置的U形上部和U型底部,所述U形上部和U型底部通过第一矩形部和第二矩形部连接;所述U形上部和U型底部的内壁上各贴合设置第一石墨烯贴片,所述第一矩形部和第二矩形部的内壁上各贴合设置第二石墨烯贴片;所述U形上部和U型底部的开口端部两侧各连接一第一金属条,每个所述第一金属条的上下两侧对称设置一对第二金属条,每对所述第二金属条的外端部均连接一矩形金属片分别形成第一端口、第二端口、第三端口和第四端口; 所述金属贴片覆盖所述介质板的下表面。A graphene-based broadband power split ratio tunable coupler, comprising: a dielectric plate, a resonant ring disposed on a surface of the dielectric plate, a first port, a second port, a third port, and a fourth port And a metal patch disposed on a lower surface of the dielectric plate, wherein: the resonant ring includes a U-shaped upper portion and a U-shaped bottom opposite to each other, the U-shaped upper portion and the U-shaped bottom passing through the first rectangular portion and the first portion a second rectangular portion is connected to each other; the first graphene patch is disposed on the inner wall of the U-shaped upper portion and the U-shaped bottom portion, and the second graphene is disposed on the inner wall of the first rectangular portion and the second rectangular portion a first metal strip is connected to each of the two sides of the open end of the U-shaped upper portion and the U-shaped bottom, and a pair of second metal strips are symmetrically disposed on the upper and lower sides of each of the first metal strips. The outer ends of the second metal strip are connected to a rectangular metal piece to form a first port, a second port, a third port and a fourth port, respectively; The metal patch covers a lower surface of the dielectric plate.
- 根据权利要求1所述的基于石墨烯的宽带功分比可调耦合器,其特征在于,所述金属贴片的尺寸与所述介质板的尺寸相同;所述U形上部和U型底部的尺寸相同;所述第一矩形部和第二矩形部的尺寸相同。The graphene-based broadband power split ratio tunable coupler according to claim 1, wherein the metal patch has the same size as the dielectric plate; the U-shaped upper portion and the U-shaped bottom portion The dimensions are the same; the first rectangular portion and the second rectangular portion are the same size.
- 根据权利要求2所述的基于石墨烯的宽带功分比可调耦合器,其特征在于,所述U形上部和U型底部的厚度与所述第一石墨烯贴片的厚度相同;所述第一矩形部和第二矩形部的厚度与所述第二石墨烯贴片的厚度相同。The graphene-based broadband power split ratio tunable coupler according to claim 2, wherein a thickness of the U-shaped upper portion and the U-shaped bottom portion is the same as a thickness of the first graphene patch; The thickness of the first rectangular portion and the second rectangular portion is the same as the thickness of the second graphene patch.
- 根据权利要求3所述的基于石墨烯的宽带功分比可调耦合器,其特征在于,所述U形上部和U型底部的宽度为0.5微米,所述U形上部和U型底部的长度为4.55微米,所述U形上部和U型底部的高度为10微米,所述U形上部和U型底部的开口宽度为3.55微米;所述第一矩形部和第二矩形部的长度为3.15微米、所述第一矩形部和第二矩形部的高度为17微米,所述第一矩形部和第二矩形部的水平距离为1.35微米;所述第一金属条的长度为23微米,所述第一金属条的高度为0.7微米;所述第二金属条的长度为23微米,所述第二金属条的高度为0.2微米;所述第一金属条与其上下两侧对称设置的一对第二金属条的垂直距离均为0.2微米;所述第一金属条与其上下两侧对称设置的一对第二金属条的水平距离均为1.75微米;所述矩形金属片的长度为10微米,所述矩形金属片的高度为1.9微米。The graphene-based broadband power ratio tunable coupler according to claim 3, wherein the U-shaped upper portion and the U-shaped bottom portion have a width of 0.5 μm, and the U-shaped upper portion and the U-shaped bottom portion have a length. The height of the U-shaped upper portion and the U-shaped bottom is 10 micrometers, the opening width of the U-shaped upper portion and the U-shaped bottom portion is 3.55 micrometers; the length of the first rectangular portion and the second rectangular portion is 3.15. Micrometers, the first rectangular portion and the second rectangular portion have a height of 17 micrometers, the first rectangular portion and the second rectangular portion have a horizontal distance of 1.35 micrometers; and the first metal strip has a length of 23 micrometers. The height of the first metal strip is 0.7 micrometer; the length of the second metal strip is 23 micrometers, and the height of the second metal strip is 0.2 micrometer; a pair of the first metal strip symmetrically disposed with the upper and lower sides thereof The vertical distance of the second metal strip is 0.2 micrometer; the horizontal distance between the first metal strip and the pair of second metal strips symmetrically disposed on the upper and lower sides thereof is 1.75 micrometers; the length of the rectangular metal strip is 10 micrometers. The rectangular metal sheet has a height of 1.9 microns.
- 根据权利要求4所述的基于石墨烯的宽带功分比可调耦合器,其特征在于,所述第一石墨烯贴片的宽度为0.5微米,所述第二石墨烯贴片的宽度为0.55微米。The graphene-based broadband power ratio tunable coupler according to claim 4, wherein the first graphene patch has a width of 0.5 μm and the second graphene patch has a width of 0.55. Micron.
- 根据权利要求5所述的基于石墨烯的宽带功分比可调耦合器,其特征在于,所述第一石墨烯贴片的化学势和所述第二石墨烯贴片的化学势的调整区间为0电子伏特至0.3电子伏特。The graphene-based broadband power ratio tunable coupler according to claim 5, wherein a chemical potential of the first graphene patch and an adjustment interval of a chemical potential of the second graphene patch It is 0 eV to 0.3 eV.
- 根据权利要求6所述的基于石墨烯的宽带功分比可调耦合器,其特征在于,所述介质板为厚度为1微米,介电常数为3.8的二氧化硅基板。The graphene-based broadband power ratio tunable coupler according to claim 6, wherein the dielectric plate is a silicon dioxide substrate having a thickness of 1 μm and a dielectric constant of 3.8.
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103956538A (en) * | 2014-04-29 | 2014-07-30 | 中国人民解放军国防科学技术大学 | Low-loss dielectric phase shifter based on graphene |
US20150180108A1 (en) * | 2012-07-23 | 2015-06-25 | Thales | Passive microelectronic components, capable of allowing a radio-frequency or hyper-frequency signal to travel in a single direction |
CN104810575A (en) * | 2015-04-14 | 2015-07-29 | 哈尔滨理工大学 | Terahertz tuning device based on graphene |
CN105244589A (en) * | 2015-10-19 | 2016-01-13 | 南通大学 | Branch line coupler and manufacture method thereof |
CN105720334A (en) * | 2016-02-29 | 2016-06-29 | 电子科技大学 | Band-pass filter based on multi-branch loading annular resonator |
CN206134906U (en) * | 2016-10-20 | 2017-04-26 | 南京信息工程大学 | Miniaturized 3dB directional coupler |
CN107565199A (en) * | 2017-08-09 | 2018-01-09 | 深圳市景程信息科技有限公司 | Broadband work(based on graphene point compares variable coupler |
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150180108A1 (en) * | 2012-07-23 | 2015-06-25 | Thales | Passive microelectronic components, capable of allowing a radio-frequency or hyper-frequency signal to travel in a single direction |
CN103956538A (en) * | 2014-04-29 | 2014-07-30 | 中国人民解放军国防科学技术大学 | Low-loss dielectric phase shifter based on graphene |
CN104810575A (en) * | 2015-04-14 | 2015-07-29 | 哈尔滨理工大学 | Terahertz tuning device based on graphene |
CN105244589A (en) * | 2015-10-19 | 2016-01-13 | 南通大学 | Branch line coupler and manufacture method thereof |
CN105720334A (en) * | 2016-02-29 | 2016-06-29 | 电子科技大学 | Band-pass filter based on multi-branch loading annular resonator |
CN206134906U (en) * | 2016-10-20 | 2017-04-26 | 南京信息工程大学 | Miniaturized 3dB directional coupler |
CN107565199A (en) * | 2017-08-09 | 2018-01-09 | 深圳市景程信息科技有限公司 | Broadband work(based on graphene point compares variable coupler |
Non-Patent Citations (1)
Title |
---|
CHRISTIAN NUNEZ ALVAREZ ET AL.: "Performance Analysis of Hybrid Metal Graphene Frequency Reconfigurable Antennas in the Microwave Regime", IEEE TRANSACTIONS ANTENNAS AND PROPAGATION, vol. 65, no. 4, 30 April 2017 (2017-04-30), pages 1558 - 1569, XP011644878 * |
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