WO2012065429A1 - Dispositif d'antenne et terminal mobile - Google Patents

Dispositif d'antenne et terminal mobile Download PDF

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Publication number
WO2012065429A1
WO2012065429A1 PCT/CN2011/075433 CN2011075433W WO2012065429A1 WO 2012065429 A1 WO2012065429 A1 WO 2012065429A1 CN 2011075433 W CN2011075433 W CN 2011075433W WO 2012065429 A1 WO2012065429 A1 WO 2012065429A1
Authority
WO
WIPO (PCT)
Prior art keywords
printing
pcb substrate
antenna device
radiation patch
secondary coupling
Prior art date
Application number
PCT/CN2011/075433
Other languages
English (en)
Chinese (zh)
Inventor
陈亚军
程守刚
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012065429A1 publication Critical patent/WO2012065429A1/fr

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Classifications

    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths

Definitions

  • the present invention relates to the field of communications, and in particular to an antenna device and a mobile terminal.
  • BACKGROUND With the continuous evolution of mobile communication from the second generation to the third generation, terminal devices that can work in two or more systems and multiple frequency bands at the same time are more and more popular, such as dual-mode dual-standby mobile phones, etc. Highlights of 3G phones.
  • single-antenna technology covers 0.8GHz-2.5GHz ultra-wideband.
  • the omnidirectional work not only saves equipment space and cost, but also facilitates the development trend of i-type and ultra-thinness of mobile terminals.
  • the existing broadband antenna technology mainly focuses on the improved design of antenna forms such as PFIA and IFA, such as adding a short circuit point at the maximum current point of the patch, and reducing the size of the antenna under the dual frequency characteristic; additional parasitic structure The same can be used to broaden the frequency band; to increase the slotted structure, to extend the current path, etc., the inventors have found that in the above-mentioned solutions in the related art, with the increase of the mobile communication mode, the expansion of the frequency band, and the demand for data services, the above improvements The mode is still insufficient in bandwidth.
  • the return loss of the traditional terminal antenna shown in Figure 1 can only work in two main communication bands, and cannot be used for data services such as BT, WLAN, and GPS, and the introduction of parasitic further
  • the spatial distance is compressed, and it is difficult to implement on a miniaturized, ultra-thin terminal, and it is necessary to develop an antenna with a wider frequency band and more adaptability to meet the technical development needs of the wireless communication terminal.
  • no effective solution has been proposed yet.
  • the utility model relates to the related art, the antenna technology has a narrow frequency band, a large size, and a high cost under the multi-antenna scheme, and the main purpose of the utility model is to provide an antenna device and a mobile terminal, so as to solve at least the above problems.
  • an antenna device includes a PCB substrate, and the PCB substrate is provided with a gradient guiding array structure, a secondary coupling radiation patch, and an RF excitation port; On one side of the PCB substrate and connected to the RF excitation port; The sub-coupled radiation patch is disposed on the other side of the PCB substrate and is directed to the other side of the surface of the array structure, and the secondary coupling radiation patch is connected to the end of the two sections of the gradient-directed array structure.
  • the PCB substrate is provided with a metal via hole, and the secondary coupling radiation patch and the two end portions of the gradation-directed array structure are connected by a metal via.
  • the gradation-directed array structure includes a plurality of printing dies, wherein the plurality of printing dies are connected by a printing feed line, and the plurality of printing dies are sequentially increased from the inside to the outside, and the printing feeding line is connected to the RF excitation port.
  • the printed feed line is connected to a central position of each of the plurality of printed frames.
  • One or more of the plurality of printing frames are in a concave shape.
  • the copper-clad area on the PCB substrate is provided with a clearance area, and the length and width of the clearance area are not less than the overall length and width of the gradient-oriented structure, and The secondary coupling patch is not connected.
  • the area of the clearance area is larger than the area of the secondary patch.
  • the present invention provides a mobile terminal, where the mobile terminal includes an antenna device, where The antenna device is the above-mentioned antenna device.
  • the utility model adopts a plurality of printing matrix structures with a gradient leading to the array to realize the low frequency bandwidth, greatly reducing the required volume, and the bandwidth thereof has no requirement for the thickness of the terminal.
  • FIG. 1 is a schematic diagram of a return loss curve of a conventional terminal antenna according to the related art
  • 2 is a schematic structural view of an antenna device according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of an antenna gradient frame according to a preferred embodiment of the present invention.
  • FIG. 4 is a second coupling patch of a preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a return loss curve of an antenna device according to a preferred embodiment of the present invention.
  • the PCB substrate 1 is provided with a gradient-directed array structure 2, a secondary coupling radiation patch 3, and an RF excitation port 4; the gradient-directed array structure 2 is disposed on one side of the PCB substrate 1 and is coupled to the RF excitation port 4 Connected; the secondary coupling radiation patch 3 is disposed on the other side of the surface of the PCB substrate 1 on which the gradient is directed to the array structure 2, and the secondary coupling radiation patch 3 and the gradient lead-oriented structure 2 The ends are connected.
  • the PCB substrate 1 is provided with a metal via 5, and the two ends of the secondary coupling radiation patch 3 and the graded lead-in structure 2 are connected through the metal via 5.
  • the gradation-directed array structure 2 includes a plurality of printing dies, wherein the plurality of printing dies are connected by a printing feed line 6 , the plurality of printing dies are sequentially increased from the inside to the outside, and the printing feeder 6 and the RF excitation are sequentially applied.
  • the ports are connected.
  • one or more of the plurality of printing frames are in a "concave shape".
  • at least three of the plurality of printing frames are arranged, and each of the plurality of printing frames has a large inter-majority. In the process, as shown in FIG.
  • the above-mentioned gradation-oriented structure 2 can be composed of five printing dies of different lengths, and a plurality of printing dies can realize wide-band operation characteristics, and the length of each printing ray is 20 mm-64 mm, and the width is 0.3-lmm, in order to ensure effective space utilization, the distance between the five printing frames is 0.5-1.5mm, and the center positions of the five printing frames are connected by a printing feeder 6, the width of the printing feeder is 0.5-2mm, and The PCB RF ports are connected. The fourth and fifth roots The end of the printed array is connected to the secondary bonding patch 3 through the metal via 5 on the PCB. To meet the low frequency bandwidth characteristics of the antenna device, the number of printed arrays needs to be greater than 3.
  • the number of printed frames described above can be reasonably increased or decreased according to actual needs.
  • the area of the secondary coupling patch 3 is 80 to 320 mm2, and the size thereof is required to satisfy the fifth printing frame 8 and the fourth printing frame 7 which can be realized with the gradient guiding structure 2 through the PCB substrate 1.
  • the metal vias 5 are connected to each other and cannot be connected to the copper-clad area of the PCB substrate 1.
  • the printed feed line 6 is connected to the center position of each of the plurality of printed frames, and it is experimentally proved that the frequency bandwidth obtained by this method is larger than that obtained by other methods.
  • the copper-clad area on the PCB substrate 1 is provided with a clearance area, and the length and width of the clearance area are not less than the overall length and width of the gradation-oriented structure, and are not connected to the secondary coupling patch.
  • the area of the clearance area may be larger than the area of the secondary patch.
  • the surface current is first directed to the array structure 2 through the gradation, thereby realizing the ⁇ frequency characteristic, and at the same time
  • the two printed arrays leading to the array structure 2 are connected to the secondary coupling patch 3, and there is a certain voltage difference between the two connection points, and the TE10 mode of the secondary coupling patch 3 is excited to satisfy the high frequency characteristic. Requires, and further broadens the frequency band characteristics, achieving a return loss of less than -5dB at 800MHz-900GHz and a return loss of less than -7.5dB at 900MHz-2.5GHz.
  • the antenna device in each of the foregoing embodiments may be applied to a mobile terminal (for example, a mobile phone), and the present invention further provides a mobile terminal, including an antenna device, where the antenna device is the foregoing various embodiments.
  • the described antenna device Based on the foregoing embodiments, it can be seen that the foregoing embodiment provides an ultra-wideband omnidirectional terminal antenna technology, and the ultra-wideband omnidirectional characteristic is realized by studying the radiation mechanism (the return loss is less than 800 MHz-900 GHz).
  • the coupling patch can be directly lithographically printed on both sides of the dielectric plate by the microstrip fabrication process, and the process is simple and reliable, thereby reducing the cost and facilitating the ultra-thinning and miniaturization of the terminal.

Landscapes

  • Details Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

Un dispositif d'antenne et un terminal mobile sont divulgués dans le modèle utilitaire de l'invention. Ledit dispositif d'antenne comprend un substrat de carte de circuit imprimé (PCB), sur lequel sont prévus une structure à éléments en réseau directionnelle à changement graduel, une plaque de rayonnement à couplage secondaire et un port d'alimentation en radiofréquences; la structure à éléments en réseau directionnels à changement graduel est prévue sur un côté du substrat de circuit imprimé, et est connectée au port d'alimentation en radiofréquences; et la plaque de rayonnement à couplage secondaire est prévue de l'autre côté du substrat de circuit imprimé à l'opposé du côté comportant la structure à éléments en réseau directionnels à changement graduel, et est connectée aux extrémités de deux éléments dans la structure à éléments en réseau directionnels à changement graduel. La solution technique susmentionnée du modèle utilitaire de l'invention peut réduire le volume de l'antenne, ce qui la rend plus avantageuse pour les exigences de conception d'un terminal ultra-fin. La topologie raisonnable de la plaque de rayonnement à couplage secondaire et les éléments en réseau directionnels à changement graduel peut améliorer le rapport d'encombrement. La plaque de rayonnement à couplage secondaire est alimentée en puissance par deux éléments de réseau imprimés des éléments de réseau directionnels à changement graduel, et est couplée aux éléments de réseau directionnels à changement graduel, ce qui élargit encore la caractéristique de bande de fréquences.
PCT/CN2011/075433 2010-11-19 2011-06-08 Dispositif d'antenne et terminal mobile WO2012065429A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201020616728.4 2010-11-19
CN 201020616728 CN202050048U (zh) 2010-11-19 2010-11-19 天线装置及移动终端

Publications (1)

Publication Number Publication Date
WO2012065429A1 true WO2012065429A1 (fr) 2012-05-24

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ID=44990345

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/075433 WO2012065429A1 (fr) 2010-11-19 2011-06-08 Dispositif d'antenne et terminal mobile

Country Status (2)

Country Link
CN (1) CN202050048U (fr)
WO (1) WO2012065429A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017005542A1 (fr) * 2015-07-08 2017-01-12 Arcelik Anonim Sirketi Moyen de communication et appareil ménager dans lequel il est utilisé
WO2017005543A1 (fr) * 2015-07-08 2017-01-12 Arcelik Anonim Sirketi Moyen de communication et appareil électroménager l'utilisant
WO2017005544A1 (fr) * 2015-07-08 2017-01-12 Arcelik Anonim Sirketi Moyen de communication et appareil électroménager dans lequel celui-ci est utilisé
WO2018001510A1 (fr) * 2016-07-01 2018-01-04 Arcelik Anonim Sirketi Adaptateur modulaire de communication sans fil pour appareil électroménager

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416490A (en) * 1993-07-16 1995-05-16 The Regents Of The University Of Colorado Broadband quasi-microstrip antenna
US20020000944A1 (en) * 2000-01-12 2002-01-03 Sabet Kazem F. Low cost compact omini-directional printed antenna
CN101719591A (zh) * 2009-12-31 2010-06-02 天津工程师范学院 一种平面梳状单极子天线

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416490A (en) * 1993-07-16 1995-05-16 The Regents Of The University Of Colorado Broadband quasi-microstrip antenna
US20020000944A1 (en) * 2000-01-12 2002-01-03 Sabet Kazem F. Low cost compact omini-directional printed antenna
CN101719591A (zh) * 2009-12-31 2010-06-02 天津工程师范学院 一种平面梳状单极子天线

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017005542A1 (fr) * 2015-07-08 2017-01-12 Arcelik Anonim Sirketi Moyen de communication et appareil ménager dans lequel il est utilisé
WO2017005543A1 (fr) * 2015-07-08 2017-01-12 Arcelik Anonim Sirketi Moyen de communication et appareil électroménager l'utilisant
WO2017005544A1 (fr) * 2015-07-08 2017-01-12 Arcelik Anonim Sirketi Moyen de communication et appareil électroménager dans lequel celui-ci est utilisé
WO2018001510A1 (fr) * 2016-07-01 2018-01-04 Arcelik Anonim Sirketi Adaptateur modulaire de communication sans fil pour appareil électroménager

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Publication number Publication date
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