WO2016173058A1 - Antenne multifréquence - Google Patents

Antenne multifréquence Download PDF

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Publication number
WO2016173058A1
WO2016173058A1 PCT/CN2015/080101 CN2015080101W WO2016173058A1 WO 2016173058 A1 WO2016173058 A1 WO 2016173058A1 CN 2015080101 W CN2015080101 W CN 2015080101W WO 2016173058 A1 WO2016173058 A1 WO 2016173058A1
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WO
WIPO (PCT)
Prior art keywords
band
array
radiating element
type
radiation unit
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PCT/CN2015/080101
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English (en)
Chinese (zh)
Inventor
罗英涛
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罗森伯格技术（昆山）有限公司
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Publication of WO2016173058A1 publication Critical patent/WO2016173058A1/fr

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    • 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
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands

Definitions

  • the invention relates to a multi-frequency antenna, which is mainly applied in the field of wireless communication.
  • the horizontal wave width of frequency is one of the important factors affecting multi-frequency antennas.
  • the larger the horizontal wave width the coverage area at the sector boundary.
  • the larger the spread the larger the range of propagation.
  • the tilt angle of the antenna is increased, beam distortion is easily generated to form a cross-region coverage.
  • the smaller the horizontal wave width the worse the coverage area at the sector boundary is.
  • the coverage at the sector boundary can be improved to the extent of the movement, and relatively, the coverage is not easily generated. Therefore, for multi-frequency antennas, the ideal horizontal wave width is an important factor in measuring its quality.
  • an improved method is adopted in the patent document CN2658958, in which one column of radiators outputs one frequency band and the other column of radiators outputs another frequency band, and the two columns of radiators are arranged in a staggered position in the vertical direction, and are used for one column.
  • a method of adding an additional radiator to another radiator in the radiator to reduce the angle of the horizontal wave width is adopted.
  • this method not only has a complicated antenna layout, but an increased radiator may also cause the antenna to be unachievable and the isolation is poor.
  • the low frequency wave width of each column of radiators is divergent, and the low frequency F1 is too wide, for example, when the spacing between the two columns is 0.3-0.7 wavelengths, the low frequency wave width is It may reach 75-110 degrees, which cannot meet the wave width requirement of the communication antenna (usually the typical horizontal wave width requires 65 degrees).
  • the technical problem to be solved by the present invention is to provide a multi-frequency antenna capable of meeting horizontal wave width requirements, and has the characteristics of simple layout and good isolation.
  • the present invention adopts the following technical solutions:
  • a multi-frequency antenna comprising at least one radiation unit array group, each of the radiation unit array groups comprising at least one first type of radiation unit array and an adjacent at least one second type radiation unit array, first Each radiating element in the radiation-like cell array is capable of separating at least the F1 band and the F2 band, and the partial radiating elements of the second type of radiating element array are capable of separating at least the F1 band and the F2 band, in each radiating element array group
  • the F1 band port of each radiating element in the first type of radiating element array and the F1 band port of the partial radiating unit in the second type of radiating element array are connected by a feeding network, and the feeding network is connected to the F1 band port The F1 band output port of the radiating element array group.
  • an F2 band port of each of said radiating element arrays in each of said first class of radiating element arrays and each of said radiating element arrays in each of said second class of radiating element arrays are respectively connected through corresponding feeding networks, and the respective feeding networks are respectively connected to the F2 band output ports.
  • At least one of said array of radiating element arrays comprises an array of said first type of radiating elements and an array of said adjacent said second type of radiating elements.
  • At least one of said array of radiating element arrays comprises an array of said first type of radiating elements and two arrays of said second type of radiating elements on either side thereof.
  • At least one of said array of radiating element arrays comprises two arrays of said first type of radiating elements and an array of said second type of radiating elements therebetween.
  • a part of the partial radiation units of the one second type of radiation unit array and the F1 band port of another part of the radiation unit pass through the first and second feeding networks respectively.
  • the first feeding network and the second feeding network are respectively connected to the radiating element array Group of two F1 band output ports.
  • At least one group of radiating element arrays comprising a first type of radiating element array and a second type of radiating element array
  • said radiating elements in said first type of radiating element array are opposite said second radiating element
  • the radiating elements in the array are staggered.
  • the at least one radiating element array group includes a phase shifter, and the F1 band output port and/or the F2 band output port of the radiating element array group is coupled to the phase shifter even.
  • At least one array of radiating elements comprising at least one radiating element group is present in said multi-frequency antenna, said set of radiating elements comprising at least two radiating elements connected by a feed network.
  • At least one radiating element of said first type of radiating element array and/or at least one radiating element of said second type of radiating element array further separates F3 band and passes
  • the feed network is connected to the F3 band output port of the radiating element array group, and the frequency of the F3 band is approximately half of the frequency of the F1 band or approximately half of the frequency of the F2 band.
  • the output port of each of the first type of radiation unit array and the partial radiation unit of the second type of radiation unit array is provided with a combiner 3 for separating the output of each frequency band.
  • the F1 frequency band and the F2 frequency band are respectively two different frequency bands in a frequency range of 1695 MHz to 2690 MHz.
  • the frequency range of the frequency band F2 is 2300MHZ-2690MHZ; similarly, when the frequency range of the F2 frequency band is 1695MHZ-2200MHZ, the frequency range of the frequency band F1 is 2300MHZ-2690MHZ.
  • the present invention passes a F1 band of each radiating element of at least one first type of radiating element array in a group of radiating element arrays and an F1 band of a partial radiating element of at least one second type of radiating element array of an adjacent column thereof
  • the electrical network is connected to realize the adjustment of the horizontal wave width of the frequency band F1 to meet the requirements of the wave width; and generally, the more the partial radiation units in the second type of radiation element array, the closer the horizontal wave width is to the standard value, The better the effect.
  • the present invention can realize the layout of multi-frequency antennas by combining different groups of radiating element arrays, and the array form of each radiating element array group has various characteristics;
  • the layout is simple, easy to implement, and the isolation is good.
  • FIG. 1 is a structural diagram of a multi-frequency antenna according to an embodiment of the present invention.
  • FIG. 2 is a structural diagram of a radiation unit array group of a multi-frequency antenna according to Embodiment 1 of the present invention
  • FIG. 3 is a structural diagram of a radiation unit array group provided with a radiation unit group according to Embodiment 1 of the present invention.
  • FIG. 4 is a structural diagram of a radiation unit array group provided with a phase shifter according to Embodiment 1 of the present invention.
  • FIG. 5 is a structural diagram of a radiation unit array group in which two radiation unit arrays are relatively staggered according to Embodiment 1 of the present invention
  • FIG. 6 is a structural diagram of outputting other frequency bands of a radiation unit array group according to Embodiment 1 of the present invention.
  • FIG. 7 is a structural diagram of a radiation unit array group of a multi-frequency antenna according to Embodiment 2 of the present invention.
  • FIG. 8 is a structural diagram of a radiation unit array group of a multi-frequency antenna according to Embodiment 3 of the present invention.
  • FIG. 9 is a structural diagram of a multi-frequency antenna according to Embodiment 4 of the present invention.
  • FIG. 10 is a structural diagram of a radiation unit array group in which two arrays of radiation elements are arranged in a staggered manner according to Embodiment 4 of the present invention
  • FIG. 11 is a structural diagram of outputting other frequency bands of a multi-frequency antenna according to Embodiment 4 of the present invention.
  • FIG. 1 it is a structural diagram of a multi-frequency antenna 1 according to an embodiment of the present invention, wherein the multi-frequency antenna 1 of the present embodiment includes at least one radiation unit array group, as shown in FIG. 1a as a group, as shown in FIG. 1b.
  • each radiation unit array group includes at least one first An array of radiating elements and an array of at least one second radiating element adjacent thereto, wherein each radiating element 2 of the first type of radiating element array is capable of separating at least an F1 band and an F2 band, and the second type of radiating element array
  • the partial radiating unit 2 is capable of separating at least the F1 frequency band and the F2 frequency band, and the F1 frequency band and the F2 frequency band are respectively two different frequency bands in a frequency range of 1695 MHz to 2690 MHz.
  • each of the radiation arrays may include a plurality of radiating elements 2, and the radiating units 2 may respectively output frequencies of different frequency bands through the combiner 3, and are connected to corresponding frequency band output ports of the radiating element array group through corresponding feeding networks. Make the output.
  • FIG. 2 is a schematic structural diagram of a radiation unit array group of a multi-frequency antenna according to Embodiment 1 of the present invention.
  • the radiation unit array group includes a first type of radiation unit array (the array on the right side in FIG. 2) and a a second type of radiating element array (the array on the left side in FIG.
  • each radiating element 2 in the first type of radiating element array is capable of separating at least the F1 band and the F2 band
  • the second type of radiating element array has a portion
  • the radiation unit 2 can at least separate the F1 frequency band and the F2 frequency band, and the number of the radiation units 2 in the column capable of separating the F1 frequency band and the F2 frequency band is greater than one and smaller than the total number of the radiation units 2 of the array in which it is located, as shown in FIG.
  • the more such radiating elements 2 the more desirable the horizontal wave width of the F1 band.
  • the F1 band port of each radiating element 2 in the first type of radiating element array is connected to the F1 band port of the partial radiating element 2 in the second type of radiating element array via a feed network 4, the feeding network being connected to the radiation
  • the F1 band output port of the cell array group can effectively make the horizontal wave width of the F1 band meet the requirements, such as falling below 65 degrees.
  • the F2 band port of each radiating element 2 in the first type of radiating element array is connected to an F2 band output port of the array group through a feed network, and each radiating element 2 in the second type of radiating element array
  • the F2 band port is connected to another F2 band output port of the array group through another feed network.
  • port output of two F2 bands and one end of one F1 band can be realized.
  • Port output similarly, if a dual-polarized radiating element is used, port output of four F2 bands and port output of two F1 bands can be realized.
  • the radiation unit array group may further comprise at least one radiation unit group 5 comprising at least two radiation units 2 connected by a feed network for simplifying the output frequency band. port.
  • the use of the radiation unit group 5 further simplifies the structural layout of the antenna and facilitates the implementation of the operation.
  • each of the radiation unit 2 or the output port of the radiation unit group 5 is further provided with a combiner 3 for separating the output F1 frequency band and the F2 frequency band.
  • the radiation unit array group may further include at least one phase shifter 6, and the F1 band output port and/or the F2 band output port of the radiation unit array group and corresponding The phase shifters 6 are connected for realizing the phase change of each frequency band.
  • the radiating elements 2 in the first type of radiating element array are interleaved with respect to the radiating elements 2 in the second type of radiating element array. Set to further reduce the horizontal wave width of the F1 band.
  • At least one of the radiating element array groups may separate the F3 frequency band, such as at least one radiation of the first type of radiating element array in this embodiment.
  • the unit 2 and/or the at least one radiating element 2 of the second type of radiating element array further separates the F3 frequency band and is connected to the F3 band output port of the radiating element array group through a feeding network, wherein the frequency of the F3 frequency band may be Approximately half of the frequency of the F1 band is approximately half of the frequency of the F2 band.
  • port output of two F2 bands, port output of one F1 band, and port output of one F3 band can be realized; similarly, if dual The polarized radiating element can realize port output of 4 F2 bands, port output of 2 F1 bands and port output of 2 F3 bands.
  • FIG. 7 is a structural diagram of a radiation unit array group of a multi-frequency antenna according to Embodiment 2 of the present invention, wherein the radiation unit array group includes a first type of radiation unit array located at the center and two sides thereof Two of the second type of radiating element arrays.
  • each of the radiating element arrays of the first type of radiating element array can at least separate the F1 frequency band and the F2 frequency a segment, and the other two radiating elements in the second type of radiating element array can separate at least the F1 band and the F2 band, and the radiation unit 2 of the F1 band and the F2 band can be separated from any of the second type of radiating element arrays.
  • the number of the radiating elements 2 is larger than one and smaller than the total number of radiating elements 2 of the array. As shown in FIG. 7, in the present embodiment, there are two such radiating elements 2 in each column. Generally, the more such radiating units 2, the F1 frequency band.
  • the horizontal wave width is ideal.
  • the F1 band port of each radiating element 2 in the first type of radiating element array in the first embodiment and the F1 band port of the part of the radiating element 2 in the two adjacent second radiating element arrays are connected through the feeding network. Connected, the feed network is connected to the F1 band output port of the radiation unit array group, and the connection mode can effectively make the horizontal wave width of the F1 band meet the requirements, such as falling below 65 degrees.
  • each of the F2 band ports of each of the first type of radiation unit arrays and the F2 band ports of each of the second type of radiation unit arrays respectively pass corresponding feeds
  • the networks are connected, and each corresponding feed network is respectively connected to each F2 band output port of the array group. Therefore, in this embodiment, if a single-polarized radiating element is used, port output of three F2 bands and port output of one F1 band can be realized; similarly, if a dual-polarized radiating element is used, 6 can be realized. Port output for F2 band and port output for 2 F1 bands.
  • the radiation unit array group may further include at least one radiation unit group 5 including at least two radiation units connected through the feed network for simplifying the ports of the output frequency band.
  • the radiation unit group 5 further simplifies the structural layout of the antenna and facilitates the operation.
  • each of the radiation unit 2 or the output port of the radiation unit group 5 is further provided with a combiner 3 for separating the output F1 frequency band and the F2 frequency band.
  • the radiation unit array group may further include at least one phase shifter 6, and the F1 band output port and/or the F2 band output port of the radiation unit array group are connected to the phase shifter 6. Used to achieve phase changes in each frequency band.
  • the radiation unit array group in this embodiment may also include at least one radiation unit array to separate the F3 frequency band, and is connected to the F3 frequency band output port of the radiation unit array group through the feed network, and the frequency of the F3 frequency band. It can be approximately half of the frequency of the F1 band or approximately half of the frequency of the F2 band.
  • FIG. 8 is a structural diagram of a radiation unit array group of a multi-frequency antenna according to Embodiment 3 of the present invention, wherein the radiation unit array group includes two first-type radiation unit arrays located on both sides and located therebetween A second type of array of radiating elements.
  • each of the radiation units 2 of the first type of radiation unit array can separate at least the F1 frequency band and the F2 frequency band
  • the partial radiation unit 2 of the second type of radiation unit array can at least separate the F1 frequency band and the F2 frequency band
  • the number of radiating elements 2 capable of separating the F1 band and the F2 band in the second type of radiating element array is greater than one and smaller than the total number of radiating elements 2 of the array, as shown in FIG.
  • the second type of radiation in this embodiment In the cell array, there are four such radiating elements 2 capable of separating the F1 and F2 bands. Generally, the more such radiating elements 2, the more ideal the horizontal wave width of the F1 band.
  • the F1 band ports of 2 are connected by a second feed network, and the first feed network and the second feed network are respectively connected to the two F1 band output ports of the radiation unit array group.
  • the F2 band port of each radiating element in each of the first type of radiating element arrays and the F2 band port of each radiating element in each of the second type of radiating element arrays respectively pass through corresponding feeding networks Connected, and each corresponding feeder network is connected to each F2 band output port. Therefore, in this embodiment, if a single-polarized radiating element is used, port output of three F2 bands and port output of two F1 bands can be realized; similarly, if a dual-polarized radiating element is used, 6 can be realized. Port output for F2 band and port output for 4 F1 bands.
  • the radiation unit array group may further include at least one radiation unit group 5 including at least two radiation units 2 connected through a feed network for simplifying the ports of the output frequency band.
  • the use of the radiation unit group 5 further simplifies the structural layout of the antenna and facilitates the implementation of the operation.
  • each of the radiation unit 2 or the output port of the radiation unit group 5 is further provided with a combiner 3 for separating the output F1 frequency band and the F2 frequency band.
  • the radiation unit array group may further include at least one phase shifter 6, and the F1 band output port and/or the F2 band output port of the radiation unit array group are connected to the phase shifter 6. Used to achieve phase changes in each frequency band.
  • the radiation unit array group in this embodiment may also include at least one radiation unit array to separate the F3 frequency band, and is connected to the F3 frequency band output port of the radiation unit array group through the feed network, and the frequency of the F3 frequency band. It can be approximately half of the frequency of the F1 band or approximately half of the frequency of the F2 band.
  • FIG. 9 is a structural diagram of a multi-frequency antenna according to Embodiment 4 of the present invention.
  • each radiation unit array group comprises: a first type of radiation unit array and a second radiation unit array, and the two first type radiation arrays are arranged adjacent to each other; wherein, the first Each radiating element 2 in the radiation-like cell array can separate at least the F1 band and the F2 band, and the second type of radiating element array has a portion of the radiating unit 2 at least separating the F1 band and the F2 band, and the array can be separated.
  • the number of radiating elements in the F1 band and the F2 band is greater than one and less than the total number of radiating elements 2 in the array in which it is located.
  • such a radiating element 2 in each of the second type of radiating arrays in this embodiment is Two, generally the more such radiating elements 2, the more ideal the horizontal wave width of the F1 band.
  • the F1 band port of each radiating element 2 in the first type of radiating element array and the F1 of the partial radiating element 2 in the second type of radiating element array adjacent thereto are F1
  • the band port is connected through a feed network, and the feed network is connected to the F1 band output port of the radiation unit array group. This connection mode can effectively make the horizontal wave width of the F1 band meet the requirements, such as falling below 65 degrees.
  • each of the F2 band ports of each of the first type of radiation unit arrays and the F2 band ports of each of the second type of radiation unit arrays respectively pass corresponding feeds
  • the networks are connected, and each corresponding feed network is connected to each F2 band output port. Therefore, in this embodiment, if a single-polarized radiating element is used, port output of four F2 bands and port output of two F1 bands can be realized; similarly, if a dual-polarized radiating element is used, 8 can be realized. Port output for F2 band and port output for 4 F1 bands.
  • the radiation unit array group may further include at least one radiation unit group 5 including at least two radiation units connected through a feed network. 2.
  • the port used to simplify the output frequency band, the radiation unit group is used to further simplify the structure of the antenna and facilitate the operation.
  • each of the radiation unit 2 or the output port of the radiation unit group 5 is further provided with a combiner 3 for separating the output F1 frequency band and the F2 frequency band.
  • the radiating elements 2 in the array of the first type of radiating elements are relative to the array in the second type of radiating element array
  • the radiating elements 2 are staggered to further reduce the horizontal wave width of the F1 band.
  • the radiation unit array group may further include at least one phase shifter 6, and the F1 band output port and/or the F2 band output port of the radiation unit array group are connected to the phase shifter 6. Used to achieve phase changes in each frequency band.
  • At least one of the radiating element arrays in each of the radiating element array groups can separate the F3 frequency band and be connected to the F3 of the radiating element array group through the feeding network.
  • the band output port, and the frequency of the F3 band may be approximately half of the frequency of the F1 band or approximately half of the frequency of the F2 band.
  • port output of four F2 bands, port output of two F1 bands, and port output of one F3 band can be realized; similarly, if dual-polarization is adopted
  • the radiating unit can realize port output of 8 F2 bands, port output of 4 F1 bands and port output of 2 F3 bands.
  • the array combination of the radiation unit array group and the arrangement of the radiation unit array groups in the present practical embodiment is not limited to the above embodiment as long as at least one first type radiation unit array and adjacent at least one second type are provided.
  • An array of radiating elements is considered to be an embodiment of the present invention.
  • one or more of the radiation cell array groups of Embodiments 1 through 3 can be variously combined.
  • the multi-frequency antenna of the present invention may include one or more radiation unit arrays that output only a single frequency band in addition to the above-described radiation unit array group.
  • the present invention sets the F1 frequency band of each of the at least one first type of radiation array in at least one of the radiation unit array groups and the F1 of the partial radiation unit of the adjacent at least one second type of radiation unit array.
  • the frequency band is connected through the feed network to adjust the horizontal wave width of the F1 frequency band to meet the requirements of the wave width; and usually the second type of radiation single.

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Abstract

La présente invention concerne une antenne multifréquence et s'applique principalement au domaine des communications sans fil. L'antenne multifréquence comprend au moins un ensemble de réseaux d'unités rayonnantes, et chaque ensemble de réseaux d'unités rayonnantes comprend au moins un réseau d'unités rayonnantes d'un premier type et au moins un réseau d'unités rayonnantes adjacent d'un second type. Chaque unité rayonnante du réseau d'unités rayonnantes du premier type permet au moins de séparer une bande de fréquence F1 et une bande de fréquence F2, et une partie des unités rayonnantes du réseau d'unités rayonnantes du second type permet au moins de séparer la bande de fréquence F1 et la bande de fréquence F2. Dans chaque ensemble de réseaux d'unités rayonnantes, un port destiné à la bande de fréquence F1 de chaque unité rayonnante du réseau d'unités rayonnantes du premier type est connecté à des ports destinés à la bande de fréquence F1 de la partie des unités rayonnantes du réseau d'unités rayonnantes du second type par le biais d'un réseau d'alimentation en énergie, et le réseau d'alimentation en énergie est connecté à un port de sortie destiné à la bande de fréquence F1 dudit ensemble du réseau d'unités rayonnantes. La présente invention présente les avantages d'une disposition simple et d'une bonne isolation tout en satisfaisant à une norme de largeur de faisceau horizontale d'une bande de fréquence de sortie.
PCT/CN2015/080101 2015-04-28 2015-05-28 Antenne multifréquence WO2016173058A1 (fr)

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