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WO2018184369A1 - Antenne unipolaire bimode miniaturisée reconfigurable en forme de hache - Google Patents

Antenne unipolaire bimode miniaturisée reconfigurable en forme de hache Download PDF

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Publication number
WO2018184369A1
WO2018184369A1 PCT/CN2017/106222 CN2017106222W WO2018184369A1 WO 2018184369 A1 WO2018184369 A1 WO 2018184369A1 CN 2017106222 W CN2017106222 W CN 2017106222W WO 2018184369 A1 WO2018184369 A1 WO 2018184369A1
Authority
WO
WIPO (PCT)
Prior art keywords
axe
shaped
hollow
rectangular
monopole
Prior art date
Application number
PCT/CN2017/106222
Other languages
English (en)
Chinese (zh)
Inventor
彭彪
邓力
李书芳
张贯京
葛新科
高伟明
张红治
Original Assignee
深圳市景程信息科技有限公司
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 深圳市景程信息科技有限公司 filed Critical 深圳市景程信息科技有限公司
Publication of WO2018184369A1 publication Critical patent/WO2018184369A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a miniaturized reconfigurable axe-shaped dual-mode monopole antenna.
  • Prior art monopole antennas have two resonant modes, one resonant mode resulting from the longitudinal configuration of the monopole antenna and the other resonant mode being produced by the lateral configuration of the monopole antenna.
  • the monopole antenna design can effectively adjust the antenna frequency bandwidth by reasonably adjusting its horizontal and vertical dimensions.
  • the current monopole antenna is basically difficult to effectively split the two resonance modes, and there is a technical problem that the two resonance modes cannot be independently tuned and the resonance mode is not reconfigurable.
  • the main object of the present invention is to provide a miniaturized reconfigurable axe-shaped dual-mode monopole antenna, which aims to solve the problem that the existing monopole antenna cannot independently calibrate two resonance modes, and The technical problem that the resonant mode is not reconfigurable.
  • the present invention provides a miniaturized reconfigurable axe-shaped dual-mode monopole antenna, including a dielectric plate, a hollow metal sheet, an axe monopole structure, and an SMA head, a hollow metal sheet is attached to the upper surface of the dielectric plate, the axe monopole structure is attached to the lower surface of the dielectric plate; a stepped hollow slit is etched on the hollow metal sheet, and the stepped type The hollow slit is composed of a first rectangular hollow, a second rectangular hollow, a third rectangular hollow, a fourth rectangular hollow and a fifth rectangular hollow; the axe monopole structure includes a strip vertical portion and an axe horizontal portion.
  • the strip-shaped vertical portion of the axe-shaped monopole structure includes a first rectangular metal piece and a second rectangular metal piece joined together, and the strip of the axe-shaped monopole structure The vertical portion is perpendicular to a long side of the lower surface of the dielectric plate; the axe-shaped lateral portion of the axe-shaped monopole structure includes symmetrically disposed on opposite sides of the strip-shaped vertical portion of the axe-shaped monopole structure, and the like a trapezoidal metal piece, the axe monopole structure being symmetrical about a broad side central axis of a lower surface of the dielectric plate; the SMA head being disposed on the dielectric plate, the axe monopole structure and SMA The feed end of the head is electrically connected, the hollow metal piece is electrically connected to the ground end of the SMA head; the vertical portion of the axe monopole structure extends to the top long side of the lower surface of the dielectric plate, the SMA a head disposed on the dielectric plate at a position where
  • the first rectangular hollow, the second rectangular hollow, the third rectangular hollow, the fourth rectangular hollow, and the wide side of the fifth rectangular hollow are parallel to the central axis of the broad side of the upper surface of the dielectric plate;
  • the first rectangular cutout, the second rectangular cutout, the third rectangular cutout, the fourth rectangular cutout, and the fifth rectangular cutout are symmetric about the central axis of the wide side.
  • the dielectric plate is a dielectric substrate of FR4, and the dielectric plate has a thickness of 0.8 mm and a dielectric constant of 4.4.
  • the length of the dielectric plate and the hollow metal sheet is 74 mm, the width of the dielectric plate and the hollow metal sheet is 106 mm; the length of the first rectangular hollow is 52 mm, and the first rectangular hollow a width of 44 mm; a length of the second rectangular hollow is 32 mm, a width of the second rectangular hollow is 6 mm; a length of the third rectangular hollow is 6.7 mm, and a width of the third rectangular hollow is 10.5 mm;
  • the fourth rectangular hollow has a length of 2.6 mm, the fourth rectangular hollow has a width of 17.7 mm, the fifth rectangular hollow has a length of 9.6 mm, and the fifth rectangular hollow has a width of 1.5 mm.
  • the distance between the lower longitudinal edge of the stepped hollow gap and the lower longitudinal edge of the upper surface of the dielectric plate is 6.3 mm.
  • the length of the first rectangular metal piece of the axe monopole structure is 2.5 mm, the width of the first rectangular metal piece is 36 mm; the second rectangle of the axe monopole structure The length of the metal piece is 1 mm, and the width of the second rectangular metal piece is 11 mm; the equilateral trapezoidal metal piece of the axe monopole structure The length of the upper base is 2.5 mm, the length of the lower base of the equilateral trapezoidal metal piece is 16 mm, and the height of the equilateral trapezoidal metal piece is 6.75 mm.
  • a vertical distance between a center point of the equilateral trapezoidal metal piece of the axe-shaped monopole structure and a lower bottom side of the first rectangular metal piece of the axe-shaped monopole structure is 9.8 mm.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention is provided with an axe monopole structure due to the axe-shaped cross-section of the axe monopole structure
  • the coupling area between the part and the RF ground is small
  • the present invention utilizes the upper portion of the vertical portion of the axe-shaped monopole structure to feed the edge of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna
  • the same small-sized reconfigurable axe-shaped dual-mode monopole antenna is further provided with a pair of metal pads on the upper end of the tip of the equilateral trapezoidal metal piece of the axe monopole structure, and the metal pad is provided with a via hole, and grounded through the via hole, wherein the metal pad is further connected to the tip end of the equilateral trapezoidal metal piece of the axe monopole structure by a lumped capacitance, thereby realizing the miniaturization reconfigurable
  • the high frequency resonant mode of the axe dual mode monopole antenna can be reconstructed.
  • FIG. 1 is a schematic structural view of a preferred embodiment of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention
  • FIG. 2 is a schematic structural view of a preferred embodiment of a hollow metal sheet of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention
  • FIG. 3 is a schematic structural view of a preferred embodiment of an axe-shaped monopole structure of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention
  • FIG. 4 is a schematic view showing simulation results of a reflection coefficient of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention
  • 5 is a schematic diagram showing simulation results of reflection coefficient of the LP3 parameter of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention
  • 6 is a schematic diagram showing simulation results of reflection coefficients of SI parameters of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna according to the present invention
  • FIG. 7 is a schematic diagram showing the simulation results of the reflection coefficient of the total capacitance parameter of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention.
  • FIG. 1 is a schematic plan view showing a preferred embodiment of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna 1 includes a dielectric plate 10, a hollow metal sheet 20, an axe monopole structure 50, and an SMA (Sub-Miniature-A) head 60.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna 1 has a rectangular parallelepiped structure (only a schematic plan view is shown in FIG. 1 ), and the hollow metal piece 20 and the axe-shaped monopole structure 50 are both copper. .
  • the dielectric plate 10 is a dielectric substrate of FR4, and the dielectric plate 10 has a thickness of 0.8 mm and a dielectric constant of preferably 4.4.
  • the SMA head 60 is a coaxial connector.
  • the hollow metal sheet 20 is attached to the upper surface of the dielectric plate 10, and the axe monopole structure 50 is attached to the lower surface of the dielectric plate 10.
  • the hollow metal sheet 20 is etched with a step.
  • the monopole structure 50 includes a strip-shaped vertical portion 51 and an axe-shaped cross portion 52, and the strip-shaped vertical portion 51 of the axe-shaped monopole structure includes a first rectangular metal piece 511 and a second rectangular metal piece 512 that are connected,
  • the strip-shaped vertical portion 51 of the axe-shaped monopole structure is perpendicular to the long side of the lower surface of the dielectric plate 10;
  • the axe-shaped lateral portion 52 of the axe-shaped monopole structure includes a symmetrically disposed on the axe-shaped single An equilateral trapezoidal metal piece 521 on both sides of the strip-shaped vertical portion 51 of the pole structure, the axe-shaped monopole structure 50 being symmetrical about a broad side central axis of the lower surface of the dielectric
  • the vertical portion 51 of the axe monopole structure extends to the top long side of the lower surface of the dielectric plate 10, and the SMA head 60 is disposed on the vertical portion 51 of the axe monopole structure and the medium On the dielectric plate 10 at the intersection of the top long sides of the lower surface of the board 10, a first feed port is formed.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna 1 further includes a pair of metal pads 70 disposed on an upper portion of the tip end of the equilateral trapezoidal metal piece 521 of the axicon monopole structure 50,
  • the metal pad 70 is provided with a via 71 through which the metal pad 70 is grounded, and the metal pad 70 also passes through the lumped capacitor 80 and the equilateral side of the axe monopole structure 50.
  • the tip end of the trapezoidal metal piece 521 is connected.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention is provided with an axe monopole structure, due to the coupling area of the axe-shaped transverse portion of the axe-shaped monopole structure and the radio frequency ground Small, and the axe-shaped lateral portion of the axe-shaped monopole structure and the strip-shaped vertical portion of the axe-shaped monopole structure can be effectively isolated, and two resonant modes are independently tuned;
  • the upper portion of the vertical portion of the axe-shaped monopole structure is fed at the edge of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna to achieve miniaturization of the antenna.
  • the same small-sized reconfigurable axe-shaped dual-mode monopole antenna is further provided with a pair of metal pads on the upper end of the tip of the equilateral trapezoidal metal piece of the axe monopole structure, and the metal pad is provided with a via hole, and grounded through the via hole, wherein the metal pad is further connected to the tip end of the equilateral trapezoidal metal piece of the axe monopole structure by a lumped capacitance, thereby realizing the miniaturization reconfigurable The high frequency resonant mode of the axe dual mode monopole antenna can be reconstructed.
  • FIG. 2 is a schematic structural view of a preferred embodiment of a hollow metal sheet of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna.
  • the wide sides of the first rectangular hollow 211, the second rectangular hollow 212, the third rectangular hollow 213, the fourth rectangular hollow 214, and the fifth rectangular hollow 215 are opposite to the upper surface of the dielectric plate 10.
  • the broad side central axis is parallel; the first rectangular hollow 211, the second rectangular hollow 212, the third rectangular hollow 213, the fourth rectangular hollow 214, and the fifth rectangular hollow 214 are symmetric about the broad side central axis
  • the length W of the dielectric plate 10 and the hollow metal sheet 20 is 74 mm, the width L of the dielectric plate 10 and the hollow metal sheet 20 is 106 mm; and the length W0 of the first rectangular hollow 211 is 52 mm.
  • the width L0 of the first rectangular hollow 211 is 44 mm; the length W1 of the second rectangular hollow 212 is 32 mm, the width L1 of the second rectangular hollow 212 is 6 mm; and the length W2 of the third rectangular hollow 213 is 6.7.
  • the width L2 of the third rectangular hollow 213 is 10.5 mm; the length W3 of the fourth rectangular hollow 214 is 2.6 mm, the width L3 of the fourth rectangular hollow 214 is 17.7 mm; and the length W4 of the fifth rectangular hollow 215 is 9. 6mm, the fifth rectangular hollow 215 has a width L4 of 1.5 mm.
  • the distance dx between the lower longitudinal edge of the stepped hollow slit 21 and the lower longitudinal edge of the upper surface of the dielectric plate 10 is 6.3 mm.
  • FIG. 3 is a schematic structural view of a preferred embodiment of an axe-shaped monopole structure of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna.
  • the length W P2 of the first rectangular metal piece 511 of the axe-shaped monopole structure 50 is 2.5 mm
  • the width LP2 of the first rectangular metal piece 511 is 36 mm
  • the second of the axe-shaped monopole structure 50 The length WP3 of the rectangular metal piece 512 is 1 mm
  • the width of the second rectangular metal piece 512 is 11 mm
  • the length of the upper base S2 of the equilateral trapezoidal metal piece 521 of the axe-shaped monopole structure 50 is 2.5 mm.
  • the length of the lower base of the equilateral trapezoidal metal piece is 16 mm, and the height d 3 of the equilateral trapezoidal metal piece is 6.75 mm.
  • a vertical distance between a center point of the equilateral trapezoidal metal piece 521 of the axe-shaped monopole structure 50 and a lower bottom side of the first rectangular metal piece 511 of the axe-shaped monopole structure 50 is 9.8 mm.
  • FIG. 4 is a schematic diagram showing simulation results of reflection coefficients of a miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna 1 has a reflection coefficient below -10 dB, and the operating frequency can cover from 1.15 GHz to 2.99 GHz, and realizes fpl and f P2. Resonance mode.
  • FIG. 5 is a schematic diagram showing the simulation results of the reflection coefficient of the LP3 parameter of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention.
  • FIG. 6 is a schematic diagram showing simulation results of the reflection coefficient of the S1 parameter of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention.
  • Fig. 6 by adjusting the lower base length S1 of the equilateral trapezoidal metal piece 521 of the axicon monopole structure 50, independent tuning of f P 2 can be achieved.
  • FIG. 7 is a schematic diagram showing simulation results of reflection coefficients of the total capacitance parameter of the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention.
  • the frequency of f P 2 can be reconstructed, and as the lumped capacitor 80 increases, the resonant frequency fp2 continuously decreases.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention is provided with an axe monopole structure, due to the coupling area of the axe-shaped transverse portion of the axe-shaped monopole structure and the radio frequency ground Small, and the axe-shaped lateral portion of the axe-shaped monopole structure and the strip-shaped vertical portion of the axe-shaped monopole structure can be effectively isolated
  • the two resonant modes are independently tuned; the present invention utilizes the upper portion of the vertical portion of the axe monopole structure to feed the edge of the miniaturized reconfigurable axe-type dual-mode monopole antenna. Miniaturization of the antenna.
  • the same small-sized reconfigurable axe-shaped dual-mode monopole antenna is further provided with a pair of metal pads on the upper end of the tip of the equilateral trapezoidal metal piece of the axe monopole structure, and the metal pad is provided with a via hole, and grounded through the via hole, wherein the metal pad is further connected to the tip end of the equilateral trapezoidal metal piece of the axe monopole structure by a lumped capacitance, thereby realizing the miniaturization reconfigurable The high frequency resonant mode of the axe dual mode monopole antenna can be reconstructed.
  • the miniaturized reconfigurable axe-shaped dual-mode monopole antenna of the present invention is provided with an axe monopole structure due to the axe-shaped cross-section of the axe monopole structure
  • the coupling area of the portion and the RF ground is small, and the axe-shaped lateral portion of the axe-shaped monopole structure is effectively isolated from the strip-shaped vertical portion of the axe-shaped monopole structure, and two resonant modes are independently tuned.
  • the present invention utilizes the upper portion of the vertical portion of the axe-shaped monopole structure to feed the edge of the miniaturized reconfigurable axe-type dual-mode monopole antenna to realize miniaturization of the antenna.
  • the same small-sized reconfigurable axe-shaped dual-mode monopole antenna is further provided with a pair of metal pads on the upper end of the tip of the equilateral trapezoidal metal piece of the axe monopole structure, and the metal pad is provided with a via hole, and grounded through the via hole, wherein the metal pad is further connected to the tip end of the equilateral trapezoidal metal piece of the axe monopole structure by a lumped capacitance, thereby realizing the miniaturization reconfigurable The high frequency resonant mode of the axe dual mode monopole antenna can be reconstructed.

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Abstract

La présente invention concerne, selon un mode de réalisation, une antenne unipolaire bimode miniaturisée reconfigurable en forme de hache, comprenant : une feuille métallique creuse qui est fixée au niveau d'une surface supérieure d'une plaque diélectrique, et une structure unipolaire en forme de hache qui est fixée au niveau d'une surface inférieure de la plaque diélectrique, une fente creuse étagée étant gravée sur la feuille métallique creuse ; une tête de type subminiature de type A (SMA) est disposée sur une plaque diélectrique au niveau d'une position à laquelle une partie verticale de la structure unipolaire en forme de hache coupe un bord long d'une partie supérieure de la surface inférieure de la plaque diélectrique, formant un premier orifice d'alimentation ; la structure unipolaire en forme de hache est électriquement connectée à une extrémité d'alimentation de la tête SMA, et la feuille métallique creuse est électriquement connectée à une extrémité mise à la terre de la tête SMA ; une partie supérieure d'une pointe d'une feuille métallique trapézoïdale équilatérale de la structure unipolaire en forme de hache est dotée d'une pastille de soudage métallique, la pastille de soudage métallique étant mise à la terre au moyen d'un orifice traversant, et la pastille de soudage métallique étant reliée à la pointe de la feuille métallique trapézoïdale équilatérale au moyen d'une capacité concentrée. Deux modes de résonance de la nouvelle antenne unipolaire bimode miniaturisée reconfigurable en forme de hache du mode de réalisation peuvent permettre un réglage indépendant, et les modes de résonance sont reconfigurables.
PCT/CN2017/106222 2017-04-07 2017-10-14 Antenne unipolaire bimode miniaturisée reconfigurable en forme de hache WO2018184369A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720360958.0 2017-04-07
CN201720360958.0U CN206673106U (zh) 2017-04-07 2017-04-07 小型化可重构的斧形双模单极子天线

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WO2018184369A1 true WO2018184369A1 (fr) 2018-10-11

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107093799B (zh) * 2017-04-07 2019-08-30 深圳市景程信息科技有限公司 可重构的斧形双模单极子天线
CN206673105U (zh) * 2017-04-07 2017-11-24 深圳市景程信息科技有限公司 小型化斧形双模单极子天线

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184934A1 (fr) * 2000-07-05 2002-03-06 Delphi Technologies, Inc. Antenne plane
CN102655267A (zh) * 2011-03-03 2012-09-05 Nxp股份有限公司 多频带天线
CN103682611A (zh) * 2013-12-16 2014-03-26 广州杰赛科技股份有限公司 宽带双极化天线
CN103887610A (zh) * 2014-03-18 2014-06-25 西安交通大学 一种宽频带微带pifa天线
CN107093792A (zh) * 2017-04-07 2017-08-25 深圳市景程信息科技有限公司 斧形双模单极子天线
CN107093799A (zh) * 2017-04-07 2017-08-25 深圳市景程信息科技有限公司 可重构的斧形双模单极子天线

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184934A1 (fr) * 2000-07-05 2002-03-06 Delphi Technologies, Inc. Antenne plane
CN102655267A (zh) * 2011-03-03 2012-09-05 Nxp股份有限公司 多频带天线
CN103682611A (zh) * 2013-12-16 2014-03-26 广州杰赛科技股份有限公司 宽带双极化天线
CN103887610A (zh) * 2014-03-18 2014-06-25 西安交通大学 一种宽频带微带pifa天线
CN107093792A (zh) * 2017-04-07 2017-08-25 深圳市景程信息科技有限公司 斧形双模单极子天线
CN107093799A (zh) * 2017-04-07 2017-08-25 深圳市景程信息科技有限公司 可重构的斧形双模单极子天线

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