WO2019183798A1 - Antenne - Google Patents

Antenne Download PDF

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Publication number
WO2019183798A1
WO2019183798A1 PCT/CN2018/080678 CN2018080678W WO2019183798A1 WO 2019183798 A1 WO2019183798 A1 WO 2019183798A1 CN 2018080678 W CN2018080678 W CN 2018080678W WO 2019183798 A1 WO2019183798 A1 WO 2019183798A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
signal
radiation
antenna
ground structure
Prior art date
Application number
PCT/CN2018/080678
Other languages
English (en)
Chinese (zh)
Inventor
邵金进
余忠洋
Original Assignee
华为技术有限公司
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
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2018/080678 priority Critical patent/WO2019183798A1/fr
Priority to CN201880075501.2A priority patent/CN111386629B/zh
Priority to EP18913065.1A priority patent/EP3764469B1/fr
Publication of WO2019183798A1 publication Critical patent/WO2019183798A1/fr

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Classifications

    • 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
    • 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
    • H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
    • 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
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • H01Q13/085—Slot-line radiating ends

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to antennas.
  • the commonly used printed antennas on WIFI products mainly include monopole antennas, printed inverted F antennas and loop antennas.
  • the characteristics of such printed antennas are mainly that the signal radiation direction of each printed antenna is a single direction, and the coverage angle is limited. .
  • the embodiment of the present application provides an antenna, so that the antenna can transmit signals in two directions, thereby increasing the radiation range of the antenna.
  • an embodiment of the present application provides an antenna disposed on an insulating medium of a circuit board, where the antenna includes an annular radiator, a signal feeding portion, a first conductive ground structure, and a second conductive ground structure;
  • the first end of the annular radiator is connected to the first conductive structure, and the second end of the annular radiator is connected to the signal feeding portion, and the annular radiator separately forms the first radiation signal based on the action of the current;
  • the annular radiator and the second conductive structure form a groove, and the annular radiator and the second conductive structure jointly form a second radiation signal in the opening direction of the groove based on the action of the current, the radiation direction of the first radiation signal and the second radiation The radiation direction of the signal is different;
  • the signal feed portion, the first conductive ground structure and the second conductive ground structure are all connected to the RF circuit of the circuit board.
  • the radio frequency signal on the radio frequency circuit of the circuit board feeds the annular radiator through the signal feeding portion, the first conductive ground structure and the second conductive ground structure, respectively, through the signal feeding portion and the first conductive ground structure respectively Flowing toward both ends of the annular radiator, the annular radiator separately forms a first radiation signal based on the action of the current, and the annular radiator and the second conductive structure also form a second radiation signal together in the opening direction of the groove based on the action of the current, Moreover, the radiation direction of the first radiation signal is different from the radiation direction of the second radiation signal. Therefore, the antenna provided by the embodiment of the present application can transmit signals in two directions, thereby increasing the radiation range of the antenna. Since the antenna provided by the embodiment of the present application has a wider radiation range, the number of antennas on the circuit board of the WIFI product can be reduced, which not only can reduce the manufacturing cost, but also save the occupied space on the circuit board of the WIFI product.
  • the groove is an open-out groove, and the opening width of the groove gradually increases from the inside to the outside.
  • the air wave impedance of the groove can be gradually increased from the inside to the outside, so that the reflection of the second radiation signal on the path in which the groove propagates from the inside to the outside is smaller. In turn, the second radiation signal is better transmitted in the air.
  • the opening width of the end of the groove is a quarter wavelength corresponding to the center frequency of the antenna.
  • the annular radiator includes a first radiator, a second radiator, and a third radiator;
  • the first end of the first radiator is connected to the first conductive structure, the second end of the first radiator is connected to the first end of the second radiator, and the second end of the second radiator and the third radiator Connected at one end, the second end of the third radiator is connected to the signal feeding portion;
  • the second radiator separately forms a first radiation signal based on the action of the current, and the radiation direction of the first radiation signal is perpendicular to the second radiator;
  • the third radiator and the second conductive structure together form an outwardly-shaped groove, and the third radiator and the second conductive structure together form a second radiation signal in the opening direction of the groove based on the action of the current.
  • the current on the RF circuit of the circuit board flows into the signal feeding portion, the first conductive ground structure and the second conductive ground structure, and the current flows through the first conductive ground structure and the first radiator to the second radiator, and the current passes
  • the signal feeding portion flows to the third radiator.
  • the second radiator separately forms a first radiation signal based on the action of the current
  • the third radiator and the second conductive structure also form a second radiation signal together in the opening direction of the groove based on the action of the current, and the first radiation signal
  • the radiation direction is different from the radiation direction of the second radiation signal. Therefore, the antenna provided by the embodiment of the present application can transmit signals in two directions, thereby increasing the radiation range of the antenna.
  • the antenna further includes at least one horizontal radiator
  • the at least one horizontal radiator is disposed on a side of the second radiator, and the at least one horizontal radiator and the second radiator jointly form a third radiation signal based on the action of the current, the radiation direction of the third radiation signal and the radiation direction of the first radiation signal Similarly, the radiation intensity of the third radiation signal is greater than the radiation intensity of the first radiation signal.
  • the current on the RF circuit of the circuit board flows to the second radiator through the first conductive structure and the first radiator, and the second radiator separately forms the first radiation signal based on the action of the current.
  • at least one horizontal radiator generates a current in the same direction as the second radiator, so at least one of the current on the at least one horizontal radiator and the current on the second radiator.
  • the horizontal radiator and the second radiator together form a third radiation signal. Since the third radiation signal is formed by the at least one horizontal radiator and the second radiator, the radiation intensity of the third radiation signal is greater than the radiation intensity of the first radiation signal. Therefore, at least one horizontal radiator can enhance the radiation intensity of the antenna.
  • the length of the at least one horizontal radiator ranges from a quarter wavelength to a half wavelength corresponding to the center frequency of the antenna.
  • a first slot is formed between the signal feeding portion and the first conductive ground structure, and the opening formed by the first radiator and the third radiator is in communication with the first slot;
  • a second gap is formed between the signal feeding portion and the second conductive ground structure, and the groove formed by the third radiator and the second conductive structure is in communication with the second slit.
  • the width of the signal feeding portion, the width of the first slit and the width of the second slit can be adjusted to ensure that the impedance of the antenna matches the impedance of the RF circuit of the circuit board, thereby avoiding The signal reflection loss during the feeding process ensures that the feeding efficiency of the RF circuit of the circuit board to the antenna is maximized.
  • the third radiator is a linear structure or a curved structure.
  • the annular radiator, the signal feed portion, the first conductive ground structure and the second conductive ground structure are all printed on the insulating medium of the circuit board.
  • the annular radiator, the signal feeding portion, the first conductive ground structure and the second conductive ground structure are fixedly connected to the insulating medium of the circuit board, the annular radiator, the signal feeding portion, and the first conductive Both the ground structure and the second conductive structure are metallic materials.
  • FIG. 1 is a schematic diagram of an antenna 10 disclosed in an embodiment of the present application.
  • FIG. 2 is a schematic diagram of another antenna 10 disclosed in the embodiment of the present application.
  • FIG. 3 is a schematic diagram of still another antenna 10 disclosed in the embodiment of the present application.
  • FIG. 4 is a schematic diagram of still another antenna 10 disclosed in the embodiment of the present application.
  • FIG. 1 a schematic diagram of an antenna 10 disclosed in the embodiment of the present application is shown in FIG. 1 .
  • the antenna 10 shown in FIG. 1 is arranged on an insulating medium 21 of a circuit board comprising an annular radiator 1, a signal feed 2, a first electrically conductive structure 3 and a second electrically conductive structure 4.
  • the first end of the annular radiator 1 is connected to the first conductive ground structure 3, and the second end of the annular radiator 1 is connected to the signal feed portion 2, and the annular radiator 1 separately forms a first radiation signal based on the action of the current.
  • the annular radiator 1 and the second conductive structure 4 form a groove, and the annular radiator 1 and the second conductive structure 4 jointly form a second radiation signal in the opening direction of the groove based on the action of the current, and the radiation direction of the first radiation signal Different from the radiation direction of the second radiation signal.
  • the signal feed portion 2, the first conductive ground structure 3 and the second conductive ground structure 4 are all connected to the radio frequency circuit 22 of the circuit board.
  • the radiation direction of the first radiation signal is perpendicular to the horizontal plane, and the radiation direction of the second radiation signal is horizontally to the right, so that the radiation direction of the first radiation signal can be seen by the embodiment of FIG.
  • the radiation directions of the two radiation signals are different, and the radiation direction of the first radiation signal and the radiation direction of the second radiation signal are perpendicular to each other.
  • the radiation direction of the first radiation signal and the radiation direction of the second radiation signal can be adjusted by finely adjusting the shape of the antenna 10.
  • the radio frequency signal on the radio frequency circuit 22 of the circuit board feeds the annular radiator 1 through the signal feeding portion 2, the first conductive ground structure 3 and the second conductive ground structure 4, and the current will be
  • the signal feeding portion 2 and the first conductive ground structure 3 respectively flow to both ends of the annular radiator 1, and the annular radiator 1 separately forms a first radiation signal based on the action of the current, and the annular radiator 1 and the second conductive structure 4 are further
  • the second radiation signal is formed in the direction of the opening of the groove based on the action of the current, and the radiation direction of the first radiation signal is different from the radiation direction of the second radiation signal. Therefore, the antenna 10 provided in the embodiment of the present application can be oriented in two directions.
  • the signal is transmitted, which in turn increases the range of radiation of the antenna 10. Since the antenna 10 provided by the embodiment of the present application has a wider radiation range, the number of the antennas 10 on the circuit board of the WIFI product can be reduced, which not only can reduce the manufacturing cost, but also save the occupied space on the circuit board of the WIFI product.
  • the groove is an open-out groove, and the opening width of the groove is gradually increased from the inside to the outside.
  • the opening width of the groove gradually increases from the inside to the outside, the air wave impedance of the groove can be gradually increased from the inside to the outside, so that the second radiation signal is inward from the groove.
  • the reflection on the path of the external propagation is smaller, thereby ensuring a better propagation effect of the second radiation signal in the air.
  • the opening width of the end of the groove is a quarter wavelength corresponding to the center frequency of the antenna 10.
  • the annular radiator 1 , the signal feeding portion 2 , the first conductive ground structure 3 and the second conductive ground structure 4 are all printed on the insulating medium 21 of the circuit board.
  • the annular radiator 1, the signal feeding portion 2, the first conductive ground structure 3 and the second conductive ground structure 4 can be directly printed on the insulating medium 21 of the circuit board of the WIFI product; moreover, the annular radiator 1, the signal feed
  • the inlet portion 2, the first conductive ground structure 3 and the second conductive ground structure 4 can also be printed on the insulating medium 21 of the micro-circuit board having a small area, and then the micro-circuit board is plugged or soldered on the circuit board of the WIFI product. Use, and then through different printing methods to meet the requirements of different WIFI products.
  • the annular radiator 1 , the signal feeding portion 2 , the first conductive ground structure 3 and the second conductive ground structure 4 are both fixedly connected to the insulating medium 21 of the circuit board.
  • the annular radiator 1, the signal feeding portion 2, the first conductive ground structure 3, and the second conductive ground structure 4 are all metallic materials.
  • the annular radiator 1, the signal feed portion 2, the first conductive ground structure 3 and the second conductive ground structure 4 can be bonded to the insulating medium 21 of the circuit board.
  • the micro circuit board can be plugged or soldered to the WIFI. Used on the circuit board of the product.
  • FIG. 2 is a schematic diagram of another antenna 10 disclosed in the embodiment of the present application.
  • the embodiment shown in Fig. 2 describes the specific structure of the annular radiator 1 in more detail than the embodiment shown in Fig. 1.
  • the annular radiator 1 includes a first radiator 11, a second radiator 12, and a third radiator 13.
  • the first end of the first radiator 11 is connected to the first conductive structure 3, the second end of the first radiator 11 is connected to the first end of the second radiator 12, and the second end of the second radiator 12 is connected. Connected to the first end of the third radiator 13, the second end of the third radiator 13 is connected to the signal feed portion 2.
  • the second radiator 12 separately forms a first radiation signal based on the action of the current, and the radiation direction of the first radiation signal is perpendicular to the second radiator 12.
  • the third radiator 13 and the second electrically conductive structure 4 together form an outwardly facing recess, and the third radiator 13 and the second electrically conductive structure 4 together form a second radiation signal in the opening direction of the recess based on the action of the current.
  • the current on the RF circuit 22 of the circuit board flows into the signal feed portion 2, the first conductive ground structure 3, and the second conductive ground structure 4, and the current passes through the first conductive ground structure 3 and
  • the first radiator 11 flows to the second radiator 12, and current flows to the third radiator 13 through the signal feeding portion 2.
  • the second radiator 12 separately forms a first radiation signal based on the action of the current
  • the third radiator 13 and the second conductive structure 4 also form a second radiation signal together in the opening direction of the groove based on the action of the current, and
  • the radiation direction of the radiation signal is different from the radiation direction of the second radiation signal. Therefore, the antenna 10 provided by the embodiment of the present application can transmit signals in two directions, thereby increasing the radiation range of the antenna 10.
  • FIG. 3 is a schematic diagram of still another antenna 10 disclosed in the embodiment of the present application.
  • the embodiment shown in Figure 3 adds additional components based on the embodiment shown in Figure 2.
  • the antenna 10 may also include at least one horizontal radiator 5.
  • the at least one horizontal radiator 5 is disposed on the side of the second radiator 12, and the at least one horizontal radiator 5 and the second radiator 12 together form a third radiation signal based on the action of the current, and the radiation direction of the third radiation signal is The radiation direction of a radiation signal is the same, and the radiation intensity of the third radiation signal is greater than the radiation intensity of the first radiation signal.
  • the current on the RF circuit 22 of the circuit board flows through the first conductive structure 3 and the first radiator 11 to the second radiator 12, and the second radiator 12 is based on the action of the current.
  • the first radiation signal is formed separately.
  • at least one horizontal radiator 5 generates a current in the same direction as the second radiator 12, so that the current on the at least one horizontal radiator 5 and the current on the second radiator 12 are common.
  • the at least one horizontal radiator 5 and the second radiator 12 together form a third radiation signal. Since the third radiation signal is formed by the at least one horizontal radiator 5 and the second radiator 12, the radiation intensity of the third radiation signal is greater than the radiation intensity of the first radiation signal. Therefore, at least one horizontal radiator 5 can enhance the radiation intensity of the antenna 10.
  • FIG. 4 is a schematic diagram of still another antenna 10 disclosed in the embodiment of the present application.
  • the number of horizontal radiators 5 is three.
  • the number of horizontal radiators 5 is one.
  • the embodiment of the present application does not limit the number of horizontal radiators 5, and the number of horizontal radiators 5 shown in FIG. 3 and FIG. 4 is for the purpose of better understanding of the technical solution.
  • the length of the at least one horizontal radiator 5 ranges from a quarter wavelength to a half wavelength corresponding to the center frequency of the antenna 10.
  • r is the wavelength
  • the unit is meters
  • c is the speed of light
  • the unit is meters per second
  • f is the center frequency of the antenna 10, and the unit is Hz.
  • the third radiator 13 may be a linear structure or a curved structure. If the third radiator 1 has a curved structure, the third radiator 1 protrudes toward the opening direction of the groove, thereby causing the third radiator 1 to form a curved structure.
  • a first gap is formed between the signal feeding portion 2 and the first conductive ground structure 3, and the first radiator 11 and the third radiator 13 are formed.
  • the opening is in communication with the first slit.
  • a second gap is formed between the signal feeding portion 2 and the second conductive ground structure 4, and the groove formed by the third radiator 13 and the second conductive structure 4 communicates with the second slit.
  • the width of the signal feeding portion 2 may be adjusted to ensure the impedance and the circuit board of the antenna 10.
  • the impedance of the RF circuit 22 is matched so as to avoid signal reflection loss during the feeding process, thereby ensuring that the RF circuit 22 of the circuit board feeds the antenna 10 to the highest efficiency.
  • the small arrows on each component on the antenna 10 refer to the direction of the current, and the large arrows on the outside of the antenna 10 refer to the direction of radiation of the radiated signal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention concerne, dans un de ses modes de réalisation, une antenne; l'antenne est disposée sur un milieu isolant d'une carte à circuits; l'antenne comporte un radiateur en forme d'anneau, une partie d'introduction de signal, une première structure de masse conductrice et une seconde structure de masse conductrice; une première extrémité du radiateur en forme d'anneau est reliée à la première structure de masse conductrice, une seconde extrémité du radiateur en forme d'anneau est reliée à la partie d'introduction de signal, et le radiateur en forme d'anneau forme indépendamment un premier signal rayonnant sous l'action de courants électriques; le radiateur en forme d'anneau et la seconde structure de masse conductrice forment une rainure; le radiateur en forme d'anneau et la seconde structure de masse conductrice forment conjointement un second signal rayonnant dans une direction d'ouverture de la rainure sous l'action des courants électriques; et la direction de rayonnement du premier signal rayonnant est différente de la direction de rayonnement du second signal rayonnant; et la partie d'introduction de signal, la première structure de masse conductrice et la seconde structure de masse conductrice sont toutes reliées à un circuit à radiofréquences de la carte à circuits. L'antenne selon le mode de réalisation de la présente invention peut émettre des signaux dans deux directions, ce qui confère à l'antenne une plage de rayonnement plus étendue.
PCT/CN2018/080678 2018-03-27 2018-03-27 Antenne WO2019183798A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2018/080678 WO2019183798A1 (fr) 2018-03-27 2018-03-27 Antenne
CN201880075501.2A CN111386629B (zh) 2018-03-27 2018-03-27 一种天线
EP18913065.1A EP3764469B1 (fr) 2018-03-27 2018-03-27 Antenne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/080678 WO2019183798A1 (fr) 2018-03-27 2018-03-27 Antenne

Publications (1)

Publication Number Publication Date
WO2019183798A1 true WO2019183798A1 (fr) 2019-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/080678 WO2019183798A1 (fr) 2018-03-27 2018-03-27 Antenne

Country Status (3)

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EP (1) EP3764469B1 (fr)
CN (1) CN111386629B (fr)
WO (1) WO2019183798A1 (fr)

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CN115275583B (zh) * 2022-09-23 2023-04-25 盛纬伦(深圳)通信技术有限公司 应用于分米波频段车载通信的宽带多波束天线阵元及阵列

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CN102396110A (zh) * 2009-04-14 2012-03-28 Ace技术株式会社 具有端点短路的辐射体的使用耦合匹配的宽带天线
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CN114070907B (zh) * 2020-07-30 2024-03-26 荣耀终端有限公司 镜头装饰组件及电子设备

Also Published As

Publication number Publication date
CN111386629B (zh) 2021-09-07
EP3764469A1 (fr) 2021-01-13
CN111386629A (zh) 2020-07-07
EP3764469A4 (fr) 2021-03-17
EP3764469B1 (fr) 2023-03-01

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