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WO2018133541A1 - Antenne unipolaire à bande ultra-large à encoche reconfigurable - Google Patents

Antenne unipolaire à bande ultra-large à encoche reconfigurable Download PDF

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Publication number
WO2018133541A1
WO2018133541A1 PCT/CN2017/112993 CN2017112993W WO2018133541A1 WO 2018133541 A1 WO2018133541 A1 WO 2018133541A1 CN 2017112993 W CN2017112993 W CN 2017112993W WO 2018133541 A1 WO2018133541 A1 WO 2018133541A1
Authority
WO
WIPO (PCT)
Prior art keywords
notch
monopole antenna
wideband monopole
isosceles trapezoidal
ultra
Prior art date
Application number
PCT/CN2017/112993
Other languages
English (en)
Chinese (zh)
Inventor
曲美君
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 WO2018133541A1 publication Critical patent/WO2018133541A1/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
    • 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
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas

Definitions

  • the present invention relates to the field of microwave communication technologies, and in particular, to a trapped reconfigurable ultra-wideband monopole antenna.
  • ultra-wideband (UWB) communication systems with high data transmission rates, low cost, low power consumption, and strong anti-interference ability have been rapidly developed.
  • Ultra-wideband antennas have become a research hotspot of international scholars in recent years.
  • the UWB band includes bands such as WLAN and WiMAX, which may cause some interference between them.
  • the technical problem is often solved by notching.
  • the ultra-wideband antenna implements notching to load a radiation slot or a resonant branch on the antenna, which makes it difficult to ensure complete UWB performance.
  • the present invention provides a notch reconfigurable ultra-wideband monopole antenna, the notch reconfigurable ultra-wideband monopole antenna comprising a radiating element, a microstrip feeder, a dielectric substrate, and a connection Floor, where
  • the radiation unit, the microstrip feed line is disposed on an upper surface of the dielectric substrate, and the ground plate is disposed on a lower surface of the dielectric substrate;
  • the radiating unit comprises an isosceles trapezoidal region and a rectangular region which is equal to and connected to a lower bottom of the isosceles trapezoidal region, and the rectangular region is provided with an arc gap of the lower end of the isosceles trapezoidal region ;
  • the arc gap is provided with a plurality of radio frequency switches
  • an upper base of the isosceles trapezoidal region of the radiating unit is connected to the microstrip feed line;
  • the arc gap is bilaterally symmetric with respect to a center line of the isosceles trapezoidal region of the radiation unit;
  • the microstrip feed line is bilaterally symmetric with respect to a center line of an isosceles trapezoidal region of the radiation unit.
  • the lower base of the isosceles trapezoidal region of the radiating unit is the same width as the ground plate, and the dielectric substrate has a thickness of 1.6 mm.
  • the size of the rectangular area of the radiating element is 20 mm x 6.5 mm; the upper base of the isosceles shaped area of the radiating element is 10 mm, the lower bottom is 20 mm, and the height is 3 mm.
  • the inner arc of the circular arc slit has a chord length of 12 mm, the inner arc has a bow height of 4 mm, the circular arc slit has a width of lmm, and the circular arc slit has a radius of 7 mm.
  • microstrip feed line has a width of 3 mm and a length of 15.5 mm.
  • radio frequency is turned into a PIN diode.
  • the isosceles trapezoidal region 11 in the notch reconfigurable ultra-wideband monopole antenna of the present invention has the radiation unit 1 having two chamfer angles, and the two chamfer angles are symmetric about the microstrip feed line 2, thereby realizing Ultra-wideband;
  • the notch reconfigurable ultra-wideband monopole antenna of the present invention generates a notch by a circular arc slit etched on the radiating element, and then further controls a plurality of radio frequencies disposed on the arc gap The switching on and off changes the resonant length of the gap, and then changes the resonant frequency of the antenna, realizes the on-demand reconfigurability of the notch, and finally guarantees the complete UWB performance of the notch reconfigurable ultra-wideband monopole antenna of the present invention.
  • the peers realized the miniaturization of the antenna.
  • FIG. 1 is a top plan view of a notch reconfigurable ultra-wideband monopole antenna in a first embodiment of the present invention.
  • FIG. 2 is a longitudinal cross-sectional view of a notch reconfigurable ultra-wideband monopole antenna in the first embodiment of the present invention.
  • FIG. 3 is a graph showing reflection coefficients of various state simulations of an optimized notch reconfigurable ultra-wideband monopole antenna in an embodiment of the present invention.
  • FIG. 4 is a standing wave ratio curve of each state simulation of the optimized notch reconfigurable ultra-wideband monopole antenna in an embodiment of the present invention.
  • FIG. 4 is a standing wave ratio curve of each state simulation of the optimized notch reconfigurable ultra-wideband monopole antenna in an embodiment of the present invention.
  • the present invention proposes a first embodiment, as shown in FIGS. 1 and 2, a notch reconfigurable ultra-wideband monopole antenna, comprising a radiating element 1, a microstrip feeder 2, a dielectric substrate 3, and a grounding plate 4 .
  • the radiation unit 1 and the microstrip feed line 2 are disposed on an upper surface of the dielectric substrate 3, and the ground plate 4 is disposed on a lower surface of the dielectric substrate 3.
  • the radiation unit 1 includes an isosceles trapezoidal region 11 and an isosceles trapezoidal region.
  • the rectangular area 12 is provided with a circular arc slit 121 whose mouth is facing the lower bottom of the isosceles trapezoidal area 11, the arcuate slit 121 is related to the radiation unit 1, etc.
  • the center line of the waist trapezoidal region 11 is bilaterally symmetrical; the arc gap 121 is provided with a plurality of radio frequency switches (in FIG.
  • the isosceles trapezoidal region 11 in the notch reconfigurable ultra-wideband monopole antenna of the present invention causes the radiating element 1 to have two chamfer angles, and the two chamfer angles are symmetric about the microstrip feed line 2, thereby realizing Ultra-wideband; the lower bottom of the isosceles trapezoidal region 11 of the radiating element 1 is the same as the width of the grounding plate 4, so that the antenna of the present invention has a compact structure and stable radiation performance; further, the notch reconfigurable super of the present invention
  • the broadband monopole antenna generates a notch by the arc slit 121 etched on the radiation unit 1, and then the resonance of the arc slit 121 can be further changed by controlling a plurality of radio frequency switching openings provided on the arc slit 121.
  • the length, and thus the resonant frequency of the antenna realizes the on-demand reconfigurability of the notch, and finally realizes the miniaturization of the antenna while ensuring the complete UWB performance of the notch reconfigurable ultra-wideband monopole antenna of the present invention.
  • the arc gap 121 may be further disposed at a position where the current of the radiation unit 1 is the strongest, and the entire trapped reconfigurable ultra-wideband monopole antenna is bilaterally symmetric about the longitudinal center line thereof, so that The antenna of the utility model has a better match.
  • the dielectric substrate 3 is a phase a rectangular FR4 dielectric substrate 3 having a dielectric constant of 4.4 and a thickness of 1.6 mm;
  • the radiating element 1, the microstrip feed line 2, and the grounding plate 4 are all copper sheets;
  • the arc slits 121 are formed on the copper sheets on the upper and lower surfaces of the dielectric substrate 3 by etching.
  • the radiating element 1, the microstrip feed line 2, and the ground plate 4 may also be disposed on the dielectric substrate 3 by transfer.
  • the length of the microstrip feeder 2 is 15.5 mm; the shape of the chamfer of the radiating element 1 is a right triangle, the two right sides of the right triangle are 3.5 mm and 5 mm, respectively; the radius of the arc slit 121 is 7 mm. .
  • Table 1 shows the specific operational state of the antenna of the present invention.
  • FIG. 3 shows a reflection coefficient curve of each state simulation of the optimized notch reconfigurable ultra-wideband monopole antenna in the above specific embodiment.
  • the antenna Good UWB performance working frequency band (reflection coefficient less than -10dB) is 3.1 ⁇ 10.7GHz, completely covering the UWB operating band (3.1 ⁇ 10.6GHz); when only S3 is on (State), The antenna has good notch characteristics, the working frequency band is 3.15 ⁇ 3.96GHz; when S2 and S3 are turned on and SI is broken, that is, State3 ⁇ , the effective length of the slot is reduced, and the stopband frequency is slightly shifted to high frequency, the antenna The working frequency band is 3.57 ⁇ 4.32GHz; when S1 and S3 are turned on and S2 is turned off, that is, State4 ⁇ , the working frequency band of the antenna is 4.65 ⁇ 5.96 GHz.
  • the resonant frequency of the antenna can be changed, and the on-demand reconfigurable of the notch can be realized; and the matching of the notch reconfigurable ultra-wideband monopole antenna of the present invention Better than the prior art.
  • FIG. 4 shows the standing wave ratio curve of each state of the optimized antenna.
  • the working frequency band with a standing wave ratio of less than 2 covers the operating range of the ultra-wideband, and the notch band covers 3.4 ⁇ 3.69 respectively.
  • the number and location of the radio frequency switches in the above specific embodiments may be correspondingly designed according to specific notch requirements, and the more the number of radio frequency switches, the reconfigurable traps The more abundant the nature; in addition, when d (distance between the upper bottom of the isosceles trapezoidal region of the radiating element and the upper edge of the grounding plate) is between 0 and 2 mm, and the antenna of the present invention can be better
  • d is preferably 1.5 mm.
  • the notch reconfigurable ultra-wideband monopole antenna of the present invention has complete UWB performance, and can change the resonant length of the slot by controlling several radio frequency switching on and off the arc gap. In turn, the resonant frequency of the antenna is changed, and the on-demand reconfigurable of the notch is realized, and the antenna is miniaturized.
  • the isosceles trapezoidal region 11 in the notch reconfigurable ultra-wideband monopole antenna of the present invention has the radiation unit 1 having two chamfer angles, and the two chamfer angles are symmetric about the microstrip feed line 2, thereby realizing Ultra-wideband;
  • the notch reconfigurable ultra-wideband monopole antenna of the present invention generates a notch by a circular arc slit etched on the radiating element, and then further controls a plurality of radio frequencies disposed on the arc gap Tongguan The resonant length of the slot is changed, and then the resonant frequency of the antenna is changed, and the on-demand reconfigurable of the notch is realized, and finally the same UWB performance of the notch reconfigurable ultra-wideband monopole antenna of the present invention is realized. Miniaturization of the antenna.

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  • Waveguide Aerials (AREA)

Abstract

La présente invention concerne une antenne unipolaire à bande ultra-large à encoche reconfigurable, comprenant une unité de rayonnement, un dispositif d'alimentation de micro-bande, un substrat diélectrique et une plaque de masse, l'unité de rayonnement et le dispositif d'alimentation de micro-bande étant agencés sur une surface supérieure du substrat diélectrique, et la plaque de masse étant disposée sur une surface inférieure du substrat diélectrique ; l'unité de rayonnement comprend une zone trapézoïdale isocèle et une zone rectangulaire ayant une largeur égale à celle d'un fond inférieur de la zone trapézoïdale isocèle et reliée à la zone trapézoïdale isocèle, et la zone rectangulaire est pourvue d'un espace circulaire dont l'ouverture fait face au fond inférieur de la zone trapézoïdale isocèle ; plusieurs commutateurs radiofréquence sont disposés sur l'espace circulaire ; et un fond supérieur de la zone trapézoïdale isocèle de l'unité de rayonnement est connecté au dispositif d'alimentation de micro-bande. L'antenne unipolaire à bande ultra-large à encoche reconfigurable du présent modèle d'utilité présente non seulement une performance UWB complète, mais permet également une miniaturisation d'antenne tout en obtenant une reconfigurabilité d'encoche à la demande en même temps.
PCT/CN2017/112993 2017-01-20 2017-11-25 Antenne unipolaire à bande ultra-large à encoche reconfigurable WO2018133541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720082373.7U CN206602179U (zh) 2017-01-20 2017-01-20 陷波可重构超宽带单极天线
CN201720082373.7 2017-01-20

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WO2018133541A1 true WO2018133541A1 (fr) 2018-07-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111082225A (zh) * 2020-01-06 2020-04-28 辽宁工程技术大学 一种小型化可重构三陷波超宽带天线
CN114552193A (zh) * 2022-02-28 2022-05-27 上海师范大学 一种高增益宽带印刷套筒天线

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206602179U (zh) * 2017-01-20 2017-10-31 深圳市景程信息科技有限公司 陷波可重构超宽带单极天线
CN106848544B (zh) * 2017-01-20 2019-01-15 深圳市景程信息科技有限公司 具有陷波特性的可重构超宽带单极天线
CN107706523B (zh) * 2017-11-07 2024-03-12 山西大学 一种陷波可控超宽带天线
CN109193150A (zh) * 2018-09-26 2019-01-11 钟祥博谦信息科技有限公司 陷波可重构天线及设计方法
CN109921185A (zh) * 2019-02-12 2019-06-21 上海交通大学烟台信息技术研究院 一种可用于多种介质中的rfid标签天线

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US20070229361A1 (en) * 2006-03-29 2007-10-04 Fujitsu Component Limited Antenna apparatus
CN101777691A (zh) * 2010-02-23 2010-07-14 厦门大学 开槽印制单极超宽带天线
CN103762413A (zh) * 2013-12-31 2014-04-30 电子科技大学 超宽带陷波天线
CN103855466A (zh) * 2014-03-25 2014-06-11 电子科技大学 一种具有窄陷波带宽的三阻带超宽带天线
CN106848544A (zh) * 2017-01-20 2017-06-13 深圳市景程信息科技有限公司 具有陷波特性的可重构超宽带单极天线
CN206602179U (zh) * 2017-01-20 2017-10-31 深圳市景程信息科技有限公司 陷波可重构超宽带单极天线

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US20070229361A1 (en) * 2006-03-29 2007-10-04 Fujitsu Component Limited Antenna apparatus
CN101777691A (zh) * 2010-02-23 2010-07-14 厦门大学 开槽印制单极超宽带天线
CN103762413A (zh) * 2013-12-31 2014-04-30 电子科技大学 超宽带陷波天线
CN103855466A (zh) * 2014-03-25 2014-06-11 电子科技大学 一种具有窄陷波带宽的三阻带超宽带天线
CN106848544A (zh) * 2017-01-20 2017-06-13 深圳市景程信息科技有限公司 具有陷波特性的可重构超宽带单极天线
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111082225A (zh) * 2020-01-06 2020-04-28 辽宁工程技术大学 一种小型化可重构三陷波超宽带天线
CN114552193A (zh) * 2022-02-28 2022-05-27 上海师范大学 一种高增益宽带印刷套筒天线

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