WO2013040825A1 - Antenne de métamatériau à gain élevé, dispositif d'accès sans fil et routeur - Google Patents

Antenne de métamatériau à gain élevé, dispositif d'accès sans fil et routeur Download PDF

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Publication number
WO2013040825A1
WO2013040825A1 PCT/CN2011/081897 CN2011081897W WO2013040825A1 WO 2013040825 A1 WO2013040825 A1 WO 2013040825A1 CN 2011081897 W CN2011081897 W CN 2011081897W WO 2013040825 A1 WO2013040825 A1 WO 2013040825A1
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WO
WIPO (PCT)
Prior art keywords
metal surface
unit
surface unit
reference ground
metal
Prior art date
Application number
PCT/CN2011/081897
Other languages
English (en)
Chinese (zh)
Inventor
刘若鹏
徐冠雄
李岳峰
Original Assignee
深圳光启高等理工研究院
深圳光启创新技术有限公司
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
Priority claimed from CN201110286545.XA external-priority patent/CN103022658B/zh
Priority claimed from CN201110286500.2A external-priority patent/CN103022657B/zh
Priority claimed from CN201110286581.6A external-priority patent/CN103022659B/zh
Application filed by 深圳光启高等理工研究院, 深圳光启创新技术有限公司 filed Critical 深圳光启高等理工研究院
Publication of WO2013040825A1 publication Critical patent/WO2013040825A1/fr

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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
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a high gain metamaterial antenna, a wireless access device, and a router.
  • the existing RF modules usually include the main components such as mixing, power amplifier, filtering, RF signal transmission, matching network and antenna.
  • the antenna acts as the radiating unit and receiving device of the final RF signal, and its operating characteristics will directly affect the performance of the entire electronic system.
  • the radiated operating frequency of the existing PIFA antenna is directly related to the size of the antenna, and the bandwidth is positively correlated with the area of the antenna, so that the design of the antenna usually requires a physical length of half a wavelength, and thus the volume is large, and if the volume is reduced, The required gain cannot be achieved.
  • an additional impedance matching network needs to be added before feeding the antenna.
  • the impedance matching network additionally increases the area of the RF system, and the matching network also introduces a lot of energy loss, which is difficult to meet the system design requirements of low power consumption.
  • the existing PCB antenna is usually used as a built-in antenna. It has high environmental requirements and needs to reserve a certain area of clearance area, which has an impact on the miniaturization of equipment.
  • the metal parts on the equipment should be away from the PCB antenna, otherwise it will have a greater impact on the PCB antenna.
  • it needs to be re-commissioned for different products, with a long development cycle and a large impact on mass stability during mass production.
  • the technical problem to be solved by the present invention is to provide a high-gain metamaterial antenna, a wireless access device, and a router.
  • the high-gain metamaterial antenna, the wireless access device, and the router of the present invention have small occupation volume and low environmental requirements. Wide range, high gain, good impedance matching in the working frequency band, high energy conversion, and ideal radiation field, and can achieve miniaturization of the antenna under the premise of meeting the performance requirements of communication equipment.
  • one technical solution adopted by the present invention is to provide a high gain metamaterial antenna including a dielectric substrate, a metal structure, a feeder and a reference ground, a metal structure, a feeder, and a reference ground.
  • the first reference ground unit and the second reference ground unit are disposed on the opposite surfaces of the dielectric substrate, and the first reference ground unit forms a microstrip line at one end of the feed line. .
  • the first reference ground unit and the second reference ground unit are electrically connected to each other.
  • the dielectric substrate is provided with a plurality of metallized through holes, and the first reference ground unit and the second reference ground unit are electrically connected through the metalized through holes.
  • the first reference ground unit is provided with a first metal surface unit and a second metal surface unit electrically connected to each other, and the first metal surface unit is opposite to one end of the feeding line, so that one end of the feeding line forms a microstrip line; the second reference ground The unit is provided with a third metal surface unit, and the third metal surface unit is opposite to the second metal surface unit.
  • the dielectric substrate is located at the second metal surface unit and the third metal surface unit, and a plurality of metallized through holes are formed, and the second metal surface unit and the third metal surface unit are electrically connected through the metalized through holes.
  • the third metal surface unit is located at one end of the metal structure, and the third metal surface unit has a long aspect plate shape and is the same as the extension direction of the feed line.
  • the second reference ground unit further includes a fourth metal surface unit, and the fourth metal surface unit is located at the feeding line One side of one end, and is located in the direction in which the feeder extends.
  • the dielectric substrate is located at the first metal surface unit and the fourth metal surface unit, and a plurality of metallized through holes are opened, and the first metal surface unit and the fourth metal surface unit are electrically connected through the metalized through holes.
  • the metal structure is a complementary open resonant ring structure, a complementary spiral structure, an open spiral ring structure, a double-open spiral ring structure, a complementary bent line structure, a derivative structure of a complementary open resonant ring structure, and a complementary open resonant ring. Any of the structures of the composite structure of the structure and the structure of the complementary open resonant ring structure array.
  • the metal structure is provided with a frame body and two spiral wires located in the frame body, and the two spiral wires are connected to each other to form an open spiral ring, and the open spiral ring is connected with the frame body, and the free end of the spiral wire has a panel shape.
  • a wireless access device including a wireless access device body and being installed on a wireless access device body and performing signals thereon
  • the antenna includes a dielectric substrate, a metal structure, a feed line and a reference ground, the metal structure, the feed line and the reference ground are all disposed on the dielectric substrate, and the feed line and the metal structure are coupled to each other, and the reference ground comprises the first surface on the opposite surfaces of the dielectric substrate A reference ground unit and a second reference ground unit, the first reference ground unit forming one end of the feed line to form a microstrip line.
  • the first reference ground unit and the second reference ground unit are electrically connected to each other, and the dielectric substrate is provided with a plurality of metallized through holes, and the first reference ground unit and the second reference ground unit are electrically connected by the metalized through holes.
  • the first reference ground unit is provided with a first metal surface unit and a second metal surface unit electrically connected to each other, and the first metal surface unit is opposite to one end of the feeding line, so that one end of the feeding line forms a microstrip line;
  • the second reference ground The unit is provided with a third metal surface unit, the third metal surface unit is opposite to the second metal surface unit, and the dielectric substrate is located at the second metal surface unit and the third metal surface unit, and the first metallized through hole is opened, and the second The metal face unit and the third metal face unit are electrically connected through the first metallized through hole.
  • the third metal surface unit is located at one end of the metal structure, the third metal surface unit has a long plate shape and is the same as the extension direction of the feed line, and the second reference ground unit further includes a fourth metal surface unit, and the fourth metal surface unit
  • the first metal surface is located at one end of the feeding line and is located in the extending direction of the feeding line.
  • the first metal surface unit and the fourth metal surface unit are respectively provided with a plurality of second metallized through holes.
  • the element and the fourth metal face unit are electrically connected through the second metallized through hole.
  • the metal structure is provided with a frame body and two spiral wires located in the frame body, and the two spiral wires are connected to each other to form an open spiral ring, and the open spiral ring is connected with the frame body, and the free end of the spiral wire has a panel shape.
  • a router including a router main body and an antenna mounted on the main body of the router for signal transmission, and the antenna includes a dielectric substrate, a metal structure,
  • the feed line and the reference ground are respectively disposed on the dielectric substrate, the feed line and the metal structure are coupled to each other, and the reference ground includes a first reference ground unit and a second reference ground unit on opposite surfaces of the dielectric substrate,
  • a reference ground unit causes one end of the feed line to form a microstrip line.
  • the first reference ground unit and the second reference ground unit are electrically connected to each other, and the dielectric substrate is provided with a plurality of metallized through holes, and the first reference ground unit and the second reference ground unit are electrically connected by the metalized through holes.
  • the first reference ground unit is provided with a first metal surface unit and a second metal surface unit electrically connected to each other, and the first metal surface unit is opposite to one end of the feeding line, so that one end of the feeding line forms a microstrip line;
  • the second reference ground The unit is provided with a third metal surface unit, the third metal surface unit is opposite to the second metal surface unit, and the dielectric substrate is located at the second metal surface unit and the third metal surface unit, and the first metallized through hole is opened, and the second The metal face unit and the third metal face unit are electrically connected through the first metallized through hole.
  • the third metal surface unit is located at one end of the metal structure, the third metal surface unit has a long plate shape and is the same as the extension direction of the feed line, and the second reference ground unit further includes a fourth metal surface unit, and the fourth metal surface unit a second metallized through hole, a first metal surface unit and a fourth metal surface, the first metal surface unit and the fourth metal surface unit are located at a side of one end of the feeding line and extending in a direction of the feeding line.
  • the cells are electrically connected through the second metallized via.
  • the metal structure is provided with a frame body and two spiral wires located in the frame body, and the two spiral wires are connected to each other to form an open spiral ring, and the open spiral ring is connected with the frame body, and the free end of the spiral wire has a panel shape.
  • the beneficial effects of the present invention are: different from the prior art, the high-gain metamaterial antenna, the wireless access device and the router of the present invention precisely control the topology of the antenna metal structure and rationally arrange the microstrip line, Thereby obtaining the required equivalent dielectric constant and permeability distribution, so that the antenna can It achieves good impedance matching in the working frequency band, completes energy conversion with high efficiency, and obtains an ideal radiation field type with high gain, and can realize miniaturization of the antenna under the premise of meeting the performance requirements of communication equipment.
  • Figure 1 is a front elevational view of the high gain metamaterial antenna of the present invention
  • Figure 2 is a rear elevational view of the high gain metamaterial antenna of the present invention.
  • Figure 3 is a simulation diagram of the S parameter of the present invention shown in Figure 1;
  • Figure 4a is a schematic view of a complementary open resonant ring structure
  • Figure 4b is a schematic view of a complementary helical structure
  • Figure 4c is a schematic view showing the structure of the open spiral ring
  • Figure 4d is a schematic view of a double-open spiral ring structure
  • Figure 4e is a schematic view showing a complementary bending line structure
  • FIG. 5a is a schematic diagram showing the geometry of the complementary open resonant ring structure shown in FIG. 4a;
  • FIG. 5b is a schematic diagram of the extended open resonant ring structure shown in FIG. 4a;
  • FIG. 6a is a composite structural view of three complementary open resonant ring structures shown in FIG. 4a;
  • FIG. 6b is a complementary open resonant ring structure shown in FIG. 4a and a complementary helical structure shown in FIG. 4b.
  • FIG. 7 is a schematic structural view of four complementary open resonant ring structure arrays shown in FIG. 4a;
  • FIG. 8 is a schematic structural view of a wireless access device according to the present invention.
  • FIG. 9 is a schematic structural diagram of a router according to the present invention.
  • the metamaterial antenna is designed based on artificial electromagnetic material technology, and the artificial electromagnetic material refers to a topographic metal structure in which a metal piece is stenciled into a specific shape, and the topological metal structure of the specific shape is set in one
  • An equivalent special electromagnetic material processed by a dielectric constant and a magnetic permeability substrate whose performance parameters are mainly determined by the topological metal structure of a specific shape of its subwavelength.
  • artificial electromagnetic materials usually exhibit a high degree of dispersion characteristics.
  • the impedance, capacitance, equivalent dielectric constant, and magnetic permeability of the antenna vary drastically with frequency. Therefore, the basic characteristics of the above antenna can be modified by using artificial electromagnetic material technology, so that the metal structure and its attached dielectric substrate equivalently constitute a highly dispersive special electromagnetic material, thereby realizing a novel antenna with rich radiation characteristics.
  • the high gain metamaterial antenna of the present invention comprises a dielectric substrate 1, a metal structure 2, a feed line 3 and a reference ground.
  • the dielectric substrate 1 has a rectangular plate shape, which can be made of high molecular polymer, ceramics, Made of ferroelectric materials, ferrite materials or ferromagnetic materials.
  • the material of the dielectric substrate 1 is made of a glass fiber material (FR4), so that it is not only low in cost, but also ensures good antenna operation characteristics at different operating frequencies.
  • the metal structure 2, the feed line 3 and the reference ground are all disposed on the surface of the dielectric substrate 1.
  • the metal structure 2 forms a metamaterial with the dielectric substrate 1, and the performance of the metamaterial depends on the metal structure. 2, in the resonant frequency band, the metamaterial usually exhibits a high degree of dispersion characteristics, that is, its impedance, capacitiveness, equivalent dielectric constant and magnetic permeability change drastically with frequency, and thus by changing the metal structure 2
  • the basic characteristics of the dielectric substrate 1 are such that the metal structure 2 and the dielectric substrate 1 are equivalently composed of a highly dispersive special electromagnetic material in accordance with the Lorentz material resonance model.
  • the metal structure 2 can be a complementary open resonant ring structure, a complementary spiral structure, an open spiral ring structure, a double-open spiral ring structure, a complementary bent line structure, and a complementary open resonant ring. a derivative structure of the structure, a composite structure of a complementary open resonant ring structure, a structure of a complementary open resonant ring structure, or a similar topological metal structure or metal etching pattern, the metal structure 2 There are a myriad of shapes and are not limited to the structures mentioned above.
  • the metal structure 2 is provided with a frame 21 and two spirals 22 located in the frame 21, and the two spirals 22 are connected to each other to form an open spiral ring.
  • the frame body 21 is connected, and the free end of the spiral wire 22 has a panel shape, and the plate-shaped end portion increases the wave receiving area of the antenna.
  • the working frequency band of this embodiment is 2.4GHZ 2.49GHZ and 5.72GHZ ⁇ 5.85GHZ, the above two The gain of the frequency band can reach 3.58 dBi and 3.14 dBi, respectively.
  • the emission coefficient of the present invention is small.
  • the feed line 3 is disposed on one side of the metal structure 2 and extends along the length direction of the metal structure 2, and is coupled to the metal structure 2, wherein one end of the feed line 3 is bent and extended to The end of the metal structure 2 is on one side.
  • the capacitance value of the added capacitive electronic components is usually in the range of 0-2 pF, but the embedded capacitance value may exceed the range of 0-2 pF as the antenna operating frequency changes.
  • the reference ground is located on one side of the feed line 3 such that one end of the feed line 3 at the end of the metal structure 2 forms a microstrip line 31.
  • the reference ground includes a first reference ground unit 41 and a second reference ground unit 42.
  • the first reference ground unit 41 and the second reference ground unit 42 are respectively located on opposite sides of the dielectric substrate 1. surface.
  • the first reference ground unit 41 is provided with a first metal surface unit 411 and a second metal surface unit 412 which are electrically connected to each other.
  • the second reference ground unit 42 and the feed line 3 are located on the same side of the dielectric substrate 1 and are provided with a third metal surface unit 421 and a fourth metal surface unit 422.
  • the first metal surface unit 411 is opposite to the feed line 3 such that an end of the feed line 3 at the end of the metal structure 2 forms the microstrip line 31, that is, the reference ground is a virtual ground.
  • the second metal face unit 412 is positioned opposite to the third metal face unit 421.
  • the third metal surface unit 421 is located at one end of the metal structure 2, and the third metal surface unit 421 has a long plate shape and is the same as the extending direction of the feed line 3.
  • the plurality of metallized through holes 5 are formed in the second metal surface unit 412 and the third metal surface unit 421, and the second metal surface unit 412 and the third metal surface unit 421 Electrically connected through the metallized via 5 .
  • the fourth metal surface unit 422 is located at one side of the feeder 3 end and is located in the extending direction of the feed line 3.
  • the first metal surface unit 411 and the fourth metal surface unit 422 are provided with a plurality of metallized through holes 5, and the first metal surface unit 411 and the fourth gold
  • the face unit 422 is electrically connected through the metallized through hole 5.
  • the microstrip line 31 is formed by the first metal surface unit 411 and one end of the feed line 3, so that interference of external signals on signals transmitted on the feeder line 3 can be reduced, antenna gain can be improved, and good impedance matching can be achieved. Save materials and low cost.
  • the first metal surface unit 411 to the fourth metal surface unit 422 are disposed by a clever position, so that the reference ground occupies a small space, and a large area is realized. Further, by providing the metallized through hole 5, the area of the reference ground can be further increased.
  • the present invention also provides a wireless access device based on the high gain metamaterial antenna of the present invention.
  • the wireless access device of the present invention is a wireless access point (AP), which includes a wireless access device main body 10 and an antenna 20 mounted on the wireless access device main body 10 and transmitting signals thereto.
  • AP wireless access point
  • the wireless access device main body 10 includes a microprocessor module 11 electrically connected to the rank, a baseband processing module 12, a radio frequency processing module 13, and a front end amplification module 14, and the microprocessor module 11 is connected with a data service communication interface. Module 15 and memory 16.
  • the wireless access device main body 10 is a prior art, and details are not described herein again.
  • the antenna 20 employs the high gain metamaterial antenna of the present invention, which includes a dielectric substrate, a metal structure, a feed line, and a reference ground.
  • the technical features of the antenna 20 are specifically described with reference to the high-gain metamaterial antenna of the present invention in FIGS. 1-7, and details are not described herein again.
  • the present invention also provides a router based on the high gain metamaterial antenna of the present invention.
  • the router of the present invention includes a router main body 50 and an antenna 60 mounted on the router main body 50 and transmitting signals thereto.
  • the router main body 50 includes a power module 51, a data service communication interface 52, a data processor module 53, a memory 54, and a wireless communication module 55.
  • the power module 51 is configured to provide power to the wireless router;
  • the data service communication interface 52 is configured to input a data signal or transmit a data signal from the data terminal;
  • the data processor module 53 is configured to package the data of the received data signal.
  • the memory 54 is configured to store data signals processed by the data processor module;
  • the wireless communication module 55 is configured to pass the data processor module
  • the processed data signal is transmitted to the antenna 60 for transmission.
  • the antenna 60 is for transmitting and receiving data signals including a dielectric substrate, a metal structure, a feed line, and a reference ground. The technical features of the antenna 60 are specifically described with reference to the high-gain metamaterial antenna of the present invention in FIGS. 1-7, and details are not described herein again.
  • the high-gain metamaterial antenna, the wireless access device and the router of the present invention obtain the required equivalent dielectric constant by precisely controlling the topology of the antenna metal structure and rationally arranging the microstrip line.
  • the magnetic permeability distribution enables the antenna to achieve better impedance matching in the working frequency band, complete energy conversion with high efficiency, and obtain an ideal radiation field type, high gain, and can realize the antenna under the premise of meeting the performance requirements of the communication equipment. Miniaturization.
  • connection member is disposed between the metal structure 2 and the feeder 3.
  • the metal structure 2 and the feed line 3 are electrically connected to each other, that is, the inductive coupling between the metal structure 2 and the feed line 3, etc., which are all within the protection scope of the present invention.

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Abstract

La présente invention a trait à une antenne de métamatériau à gain élevé, à un dispositif d'accès sans fil et à un routeur. L'antenne de métamatériau à gain élevé selon la présente invention comprend un substrat diélectrique, une structure métallique, un câble d'alimentation et une référence de terre. La structure métallique, le câble d'alimentation et la référence de terre sont tous agencés sur le substrat diélectrique, lequel câble d'alimentation et laquelle structure métallique sont couplés l'un à l'autre. La référence de terre comprend une première unité de référence de terre et une seconde unité de référence de terre qui sont respectivement agencées sur deux surfaces opposées du substrat diélectrique. La première unité de référence de terre permet à une extrémité du câble d'alimentation de former un câble de microruban. L'antenne de métamatériau à gain élevé, le dispositif d'accès sans fil et le routeur selon la présente invention acquièrent une constante diélectrique équivalente et une distribution de la perméabilité magnétique requises en contrôlant avec précision la morphologie topologique de la structure métallique de l'antenne et en distribuant de façon rationnelle le câble de microruban, ce qui permet de la sorte à l'antenne d'obtenir la mise en œuvre d'une adaptation d'impédances améliorée à l'intérieur d'une bande de fréquences de fonctionnement, la réalisation avec une efficacité accrue de la conversion d'énergie, l'acquisition d'un diagramme de rayonnement idéal, d'un gain élevé, et la mise en œuvre de la miniaturisation de l'antenne en se basant sur le principe visant à répondre aux exigences de performance d'un dispositif de communication.
PCT/CN2011/081897 2011-09-23 2011-11-08 Antenne de métamatériau à gain élevé, dispositif d'accès sans fil et routeur WO2013040825A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201110286545.XA CN103022658B (zh) 2011-09-23 2011-09-23 高增益超材料天线
CN201110286545.X 2011-09-23
CN201110286500.2A CN103022657B (zh) 2011-09-23 2011-09-23 基于超材料天线的路由器
CN201110286581.6A CN103022659B (zh) 2011-09-23 2011-09-23 基于超材料天线的无线接入设备
CN201110286581.6 2011-09-23
CN201110286500.2 2011-09-23

Publications (1)

Publication Number Publication Date
WO2013040825A1 true WO2013040825A1 (fr) 2013-03-28

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100060544A1 (en) * 2008-09-05 2010-03-11 Rayspan Corporation Frequency-Tunable Metamaterial Antenna Apparatus
CN101740862A (zh) * 2008-11-20 2010-06-16 东莞市启汉电子科技有限公司 一种射频芯片小天线
CN101919114A (zh) * 2007-10-11 2010-12-15 雷斯潘公司 单层金属化并且无过孔的超材料结构
CN101946365A (zh) * 2008-02-20 2011-01-12 株式会社Emw 利用磁性电介质的超材料天线
CN102044738A (zh) * 2009-10-22 2011-05-04 雷斯潘公司 具有机械连接的超材料天线
CN102057536A (zh) * 2008-04-04 2011-05-11 雷斯潘公司 单馈送多单元的超材料天线装置
CN102110891A (zh) * 2009-12-23 2011-06-29 西北工业大学 S波段超材料完全吸收基板微带天线

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101919114A (zh) * 2007-10-11 2010-12-15 雷斯潘公司 单层金属化并且无过孔的超材料结构
CN101946365A (zh) * 2008-02-20 2011-01-12 株式会社Emw 利用磁性电介质的超材料天线
CN102057536A (zh) * 2008-04-04 2011-05-11 雷斯潘公司 单馈送多单元的超材料天线装置
US20100060544A1 (en) * 2008-09-05 2010-03-11 Rayspan Corporation Frequency-Tunable Metamaterial Antenna Apparatus
CN101740862A (zh) * 2008-11-20 2010-06-16 东莞市启汉电子科技有限公司 一种射频芯片小天线
CN102044738A (zh) * 2009-10-22 2011-05-04 雷斯潘公司 具有机械连接的超材料天线
CN102110891A (zh) * 2009-12-23 2011-06-29 西北工业大学 S波段超材料完全吸收基板微带天线

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