WO2016029631A1 - 一种天线和通信设备 - Google Patents

一种天线和通信设备 Download PDF

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Publication number
WO2016029631A1
WO2016029631A1 PCT/CN2015/070897 CN2015070897W WO2016029631A1 WO 2016029631 A1 WO2016029631 A1 WO 2016029631A1 CN 2015070897 W CN2015070897 W CN 2015070897W WO 2016029631 A1 WO2016029631 A1 WO 2016029631A1
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WO
WIPO (PCT)
Prior art keywords
transmission line
radiation
feeding
disposed
feeding portion
Prior art date
Application number
PCT/CN2015/070897
Other languages
English (en)
French (fr)
Inventor
罗兵
石中立
覃雯斐
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 EP15836592.4A priority Critical patent/EP3168930B1/en
Publication of WO2016029631A1 publication Critical patent/WO2016029631A1/zh
Priority to US15/443,438 priority patent/US10283866B2/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H01Q9/0457Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/48Earthing means; Earth screens; Counterpoises
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/24Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to an antenna and a communication device.
  • the present application provides an antenna and a communication device for solving the technical problem that the bandwidth of the antenna in the prior art is narrow.
  • the first transmission line, the second transmission line, the first connection portion, and the second connection portion are disposed on one of the upper surface and the lower surface, and the transmission line is disposed on the reference On the other surface of the surface and the lower surface;
  • the radiation sheet, the two first radiation feeding portions, the two second radiation feeding portions, the first transmission line feeding portion, and the second transmission line feeding portion are disposed on the top plate on;
  • the antenna further includes a top board and a bottom board opposite to the top board, the bottom board An upper surface opposite the top plate and a lower surface opposite the upper surface;
  • the first transmission line, the second transmission line, and the third transmission line are disposed on one of the upper surface and the lower surface, and the transmission line is disposed in reference to the other of the upper surface and the lower surface a surface, and a projection of the first transmission line, the second transmission line, and the third transmission line on the surface of the transmission line reference ground on the projection of the transmission line reference ground on the surface;
  • the first connecting portion, the second connecting portion, and the third connecting portion are located between the top plate and the bottom plate.
  • the antenna further includes a top panel, the top panel includes a lower surface and the lower An upper surface opposite to the surface, the radiation sheet being disposed on the upper surface or the lower surface;
  • the first transmission line and the first connection portion are disposed on one of the upper surface and the lower surface, and the transmission line is disposed in reference on the other of the upper surface and the lower surface;
  • the two first radiation feeding portions and the first transmission line feeding portion are disposed on the upper surface or the lower surface.
  • the antenna further includes And a surface of the bottom plate opposite to the radiation piece, partially recessed to form a groove, and the radiation piece is disposed at a reference bottom of the groove.
  • the antenna further includes a top board and a bottom board opposite to the top board, the bottom layer
  • the plate includes an upper surface opposite the top plate and a lower surface opposite the upper surface
  • the radiation sheet is disposed on the bottom plate in a reference manner, and the projection of the radiation sheet on the reference ground of the radiation sheet is on the reference ground of the radiation sheet;
  • the first transmission line is disposed on one of the upper surface and the lower surface, the transmission line is disposed in reference on the other of the upper surface and the lower surface, and the first pass a projection of the transmission line on the surface of the transmission line reference ground on a projection of the transmission line reference ground on the surface;
  • the first connection portion is located between the top plate and the bottom plate.
  • FIG. 1 is a schematic exploded view of an antenna according to a first embodiment of the present application
  • Figure 2 is a plan view of the antenna of Figure 1;
  • Figure 3 is a cross-sectional view of the antenna of Figure 2 taken along the line A-A;
  • Figure 5 is a plan view of an antenna according to a second embodiment of the present application.
  • Figure 6 is a cross-sectional view of the antenna of Figure 5;
  • Figure 9 is a plan view of an antenna according to a fifth embodiment of the present application.
  • Figure 10 is a plan view of an antenna according to a sixth embodiment of the present application.
  • Figure 11 is a plan view of an antenna according to a seventh embodiment of the present application.
  • Figure 12 is a plan view of an antenna according to an eighth embodiment of the present application.
  • Figure 15 is a schematic cross-sectional view of a prior art antenna.
  • FIG. 1 is a schematic exploded view of an antenna 100 according to a first preferred embodiment of the present application.
  • the antenna 100 includes a radiation sheet 10, a radiation sheet reference ground 11, a first transmission line 21, a second transmission line 22, a third transmission line 23, a fourth transmission line 24, a transmission line reference ground 211, a first connection portion 31, and a second connection portion. 32.
  • the radiation sheet 10 is used for transmitting and receiving radio frequency signals, and the radiation sheet 10 may be specifically a copper sheet or a copper foil attached to a board.
  • the shape of the radiation sheet 10 may be set as needed, such as The symmetrical shape may also be set to an asymmetrical shape.
  • the shape of the radiation sheet 10 is symmetrical.
  • the radiation sheet 10 itself intersects with four lines of symmetry, and the four lines of symmetry intersect at The same intersection point, and the angle between the adjacent two symmetry lines is 45 degrees.
  • the radiation sheet reference ground 11 is disposed opposite to the radiation sheet 10 to form a reference ground of the radiation sheet 10, and a projection of the radiation sheet 11 on a plane in which the radiation sheet reference ground 11 is located is located at the radiation
  • the slice is referenced to the ground 11 on the projection in this plane.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 are both used to transmit the radio frequency.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, and The fourth transmission line 24 may be of a straight type, a curved shape, or other shapes.
  • the shapes of the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 may be the same or different.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 are specifically microstrip lines.
  • the first transmission line 21 and the second transmission line 22 are
  • the third transmission line 23 and the fourth transmission line 24 may be coplanar waveguides, strip lines, and the like.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 are all disposed opposite to the transmission line reference ground 211.
  • the projections of the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 on the plane in which the transmission line reference ground 211 is located are located on the projection of the transmission line 21 on the plane.
  • the first connecting portion 31 is connected to the first transmission line 21, the second connecting portion 32 is connected to the second transmission line 22, and the third connecting portion 33 is connected to the third transmission line 23,
  • the fourth connection portion 34 is connected to the fourth transmission line 24.
  • the first connecting portion 31, the second connecting portion 32, the third connecting portion 33, and the fourth connecting portion 34 are disposed opposite to the radiation sheet reference ground 11, the first connecting portion 31, the second connecting portion 32, and the third portion
  • the projection of the connecting portion 33 and the fourth connecting portion 34 on the plane in which the radiating sheet reference ground 11 is located is on the projection of the radiating sheet reference ground 11 on the plane.
  • the antenna 100 further includes a top plate 60 having an upper surface and a lower surface opposite to the upper surface, the top plate 60 for supporting and fixing the radiation sheet 10, the first power feeding portion 41.
  • the top board 60 may be a circuit board, a steel sheet, a plastic sheet, or the like.
  • the three connection portions 33, the fourth connection portion 34, the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 are all disposed on the upper surface, and the transmission line reference ground 211 is disposed under the On the surface.
  • the first power feeding portion 41, the second power feeding portion 42, the third power feeding portion 43, and the fourth power feeding portion 44 may be disposed on a lower surface or an upper surface
  • the connecting portion 32, the third connecting portion 33, and the fourth connecting portion 34 may be disposed on the lower surface or the upper surface
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 are disposed on the upper surface
  • the transmission line reference ground 211 is disposed on the other of the upper surface and the lower surface.
  • the radiation sheet 10 is disposed on the upper surface or the lower surface.
  • the radiation sheet 10 is disposed on the upper surface of the top plate 60
  • the radiation sheet 10 is disposed on the lower surface of the top plate 60.
  • the number of the radiation sheets 10 may be two, and the two radiation sheets 10 are disposed on the upper surface and the lower surface, respectively.
  • the supporting and fixing functions may be implemented without providing the top plate 60, and the supporting and fixing functions may be achieved by other means such as a bracket.
  • the "or/and" refers to a relationship description between the two, such as A or / and B including three cases, the first is that only A exists, the second is only B exists, the first The three are both A and B.
  • the first power feeding portion 41 includes two first radiation feeding portions 411 and a first transmission line feeding portion 412 between the two first radiation feeding portions 411 and the first transmission line feeding portion 412 Capable of mutual coupling feeding.
  • the two first radiation feeding portions 411 are connected to the radiation sheet 10 for receiving a radio frequency signal of the radiation sheet 10 or transmitting a radio frequency signal to the radiation sheet 10.
  • the first transmission line feeding portion 412 is connected to the first transmission line 21 through the first connecting portion 31, that is, the first connecting portion 31 is for connecting the first transmission line feeding portion 412 and
  • the first transmission line 21 enables radio frequency signal transmission between the first transmission line feeding portion 412 and the first transmission line 21 through the first connection portion 31.
  • the two second radiation feeding portions 421 are disposed on a plane set by the two first radiation feeding portions 411, and the second transmission line feeding portion 422 is disposed on the two second radiations. Projections between the power feeding portions 421 or the second transmission line feeding portion 422 in the plane are located between projections of the two second radiation feeding portions 421 in the plane, such that the first The two transmission line feeding units 422 and the two second radiation feeding units 421 are capable of mutual coupling feeding.
  • a distance between the second connecting portion 32 and the radiation sheet reference ground 11 is greater than a distance between the second transmission line feeding portion 422 and the second radiation feeding portion 421.
  • the signal on the second transmission line 22 is transmitted to the second transmission line feeding portion 422 through the second connecting portion 32, and is coupled to the two second radiation feeding portions 421, and radiated through the radiation sheet 10 Going out; when receiving the signal, the radiation sheet 10 couples the received signal to the second transmission line feeding portion 422 through the two second radiation feeding portions 421, and transmits the second transmission portion through the second connecting portion 32.
  • the second transmission line 22 is given.
  • the third feeding portion 43 includes two third radiation feeding portions 431 and a third transmission line feeding portion 432 between the two third radiation feeding portions 431 and the third transmission line feeding portion 432 Capable of mutual coupling feeding.
  • the two third radiation feeding portions 431 are connected to the radiation sheet 10 for receiving a radio frequency signal of the radiation sheet 10 or transmitting a radio frequency signal to the radiation sheet 10.
  • the third transmission line feeding portion 432 is connected to the third transmission line 23 through the third connecting portion 33, that is, the third connecting portion 33 is for connecting the third transmission line feeding portion 432 and
  • the third transmission line 23 enables radio frequency signal transmission between the third transmission line feeding portion 432 and the third transmission line 23 through the third connecting portion 33.
  • the two third radiation feeding portions 431 are disposed on a plane set by the two first radiation feeding portions 411, and the third transmission line feeding portion 432 is disposed on the two third radiations. Projections between the power feeding portions 431 or the third transmission line feeding portion 432 in the plane are located between projections of the two third radiation feeding portions 431 in the plane, such that the first The three transmission line feeding unit 432 and the two third radiation feeding units 431 are capable of mutual coupling feeding.
  • a distance between the third connecting portion 33 and the radiation sheet reference ground 11 is greater than a distance between the third transmission line feeding portion 432 and the third radiation feeding portion 431.
  • the signal on the third transmission line 23 is transmitted to the third transmission line feeding portion 432 through the third connecting portion 33, and is coupled to the two third radiation feeding portions 431, and radiated through the radiation sheet 10 Going out; when receiving the signal, the radiation sheet 10 couples the received signal to the third transmission line feeding portion 432 through the two third radiation feeding portions 431, and transmits the signal through the third connecting portion 33.
  • the third transmission line 23 is given.
  • the fourth feeding portion 44 includes two fourth radiation feeding portions 441 and a fourth transmission line feeding portion 442 between the two fourth radiation feeding portions 441 and the fourth transmission line feeding portion 442 Capable of mutual coupling feeding.
  • the two fourth radiation feeding portions 441 are connected to the radiation sheet 10 for receiving a radio frequency signal of the radiation sheet 10 or transmitting a radio frequency signal to the radiation sheet 10.
  • the fourth transmission line feeding portion 442 is connected to the fourth transmission line 24 through the fourth connecting portion 34, that is, the fourth connecting portion 34 is for connecting the fourth transmission line feeding portion 442 and
  • the fourth transmission line 24 enables communication between the fourth transmission line feeding portion 442 and the fourth transmission line 24
  • the fourth connection portion 34 transmits RF signals to each other.
  • the two fourth radiation feeding portions 441 are disposed on a plane set by the two first radiation feeding portions 411, and the fourth transmission line feeding portion 442 is disposed on the two fourth radiations. Projections between the power feeding portions 441 or the fourth transmission line feeding portion 442 in the plane are located between projections of the two fourth radiation feeding portions 441 in the plane, such that the first The four transmission line feeding portion 442 and the two fourth radiation feeding portions 441 are capable of mutual coupling feeding.
  • a distance between the fourth connecting portion 34 and the radiation sheet reference ground 11 is greater than a distance between the fourth transmission line feeding portion 442 and the fourth radiation feeding portion 441.
  • the radiation sheet 10 is located in a region surrounded by the first connecting portion 31, the second connecting portion 32, the third connecting portion 33 and the fourth connecting portion 34, the first feeding portion 41 and the second feeding portion
  • the polarization direction of the radiated electromagnetic waves excited by any one of the portion 42, the third power feeding portion 43, and the fourth power feeding portion 44 is perpendicular or retarded by 180 degrees.
  • the signal on the fourth transmission line 24 is transmitted to the fourth transmission line feeding portion 442 through the fourth connecting portion 34, and is coupled to the two fourth radiation feeding portions 441, and radiated through the radiation sheet 10 Going out; when receiving the signal, the radiation sheet 10 couples the received signal to the fourth transmission line feeding portion 442 through the two fourth radiation feeding portions 441, and transmits the signal through the fourth connecting portion 34.
  • the fourth transmission line 24 is given.
  • the third transmission line feeding portion 432 and the fourth transmission line feeding portion 442 are proportional to the distance based on the inductive characteristic intensity, and the capacitive characteristic intensity is inversely proportional to the distance, because the first connecting portion 31 and the second connecting portion are 32.
  • the distance between the third connecting portion 33, the fourth connecting portion 34 and the radiating piece reference ground 11 is greater than the first transmission line feeding portion 412, the second transmission line feeding portion 422, and the third transmission line feeding, respectively.
  • the distance between the portion 432 and the fourth transmission line feeding portion 442 and the two first radiation feeding portions 411, therefore, the first connecting portion 31, the second connecting portion 32, the third connecting portion 33, and the Inductiveness of the four connecting portions 34 The characteristics are strong, and the capacitive characteristics of the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are strong, so that the actual input presented by the antenna
  • the impedance is close to the ideal transmission impedance, thereby reducing the standing wave ratio, so that the bandwidth of the antenna 100 is widened, which solves the prior art because the direct connection between the coaxial line and the radiation piece is substantially perpendicular to the radiation piece.
  • the inner conductor has a large inductive characteristic in the circuit,
  • the height of the antenna 100 (the distance between the radiation sheet 10 and the radiation sheet reference ground 30) is 15 mm.
  • the VSWR of the antenna is less than 1.5, that is, the return loss is less than -14dB.
  • the relative bandwidth of the antenna 100 is 23.7%, which realizes the required low profile and wideband. Claim.
  • the connecting portion 31, the second connecting portion 32, the third connecting portion 33, the fourth connecting portion 34, the first power feeding portion 41, the second power feeding portion 42, the third power feeding portion 43, and the fourth power feeding portion 44 are both
  • the transmission line reference ground 211 is disposed on the upper surface of the top plate 60, and the transmission line reference ground 211 is disposed on the lower surface of the top plate 60.
  • the first transmission line feeding portion 412 is disposed between the two first radiation feeding portions 411, and the second transmission line feeding portion 422 is disposed between the two second radiation feeding portions 421.
  • the third transmission line feeding portion 432 is disposed between the two third radiation feeding portions 431 , and the fourth transmission line feeding portion 442 is disposed between the two fourth radiation feeding portions 441 .
  • FIG. 5 and FIG. 5 show that as shown in FIG. 5 and FIG.
  • Two fourth radiation feeding portions 441 and the transmission line reference ground 211 are disposed on a lower surface of the top plate 60, and the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24
  • the first connecting portion 31, the second connecting portion 32, the third connecting portion 33, the fourth connecting portion 34, the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the A fourth transmission line feeding portion 442 is disposed on an upper surface of the top plate 60, and the first transmission line feeding portion 412 is cast in the plane (ie, the lower surface of the top plate 60) a shadow between the projections of the two first radiation feeding portions 411 in the plane; a projection of the second transmission line feeding portion 422 in the plane (ie, the lower surface of the top plate 60) Located between the projections of the two second radiation feeding portions 421 in the plane; the projection of the
  • the number of the radiation sheets 10 is two, which are respectively disposed on the upper surface and the lower surface of the top plate 60, and the upper surface and the lower surface of the top plate 60 are provided with
  • the two first radiation feeding portions 411, the two second radiation feeding portions 421, the two third radiation feeding portions 431, and the two fourth radiation feeding portions 441 are connected to the radiation sheet 10.
  • the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are disposed on the upper surface of the top plate 60, and the transmission line reference ground 40 is disposed under the top plate 60. On the surface.
  • the radiation sheet 10 the two first radiation feeding portions 411, the two second radiation feeding portions 421, the two third radiation feeding portions 431, and the two fourth radiation feeding units
  • the portion 441 is located on the same surface of the top plate 60, and the first transmission line 21, the second transmission line 22, the third transmission line 23, the fourth transmission line 24, the first connection portion 31, the second connection portion 32, and the third connection
  • the portion 33, the fourth connecting portion 34, the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are also provided in the same shape of the top plate 60 On the surface.
  • the electric portions 441 may be respectively located on the upper surface and the lower surface of the top plate 60, the first transmission line 21, the second transmission line 22, the third transmission line 23, the fourth transmission line 24, the first connection portion 31, and the second connection
  • the portion 32, the third connecting portion 33, the fourth connecting portion 34, the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 may also be located respectively Top plate On the upper and lower surfaces of 60. As shown in FIG.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, the fourth transmission line 24, the first connection portion 31, the second connection portion 32, the third connection portion 33, and the fourth connection portion are shown.
  • 34 two first radiation feeding portions 411, two second radiation feeding portions 421, two third radiation feeding portions 431, and two fourth radiation feeding portions 441 are disposed on the upper surface of the top plate 60
  • the radiation sheet 10, the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are disposed on the lower surface.
  • the antenna 100 includes a first transmission line 21, a second transmission line 22, a third transmission line 23, a fourth transmission line 24, a first connection portion 31, a second connection portion 32, and a third connection.
  • a portion 33, a fourth connecting portion 34, a first feeding portion 41, a second feeding portion 42, a third feeding portion 43, and a fourth feeding portion 44, the first feeding portion 41, the second feeding portion The polarization directions of the radiated electromagnetic waves excited by the adjacent two feeding portions of the portion 42, the third power feeding portion 43, and the fourth power feeding portion 44 are perpendicular.
  • the two first radiation feeding portions 411 are symmetrical with respect to the first straight line
  • the first transmission line feeding portion 412 itself is symmetrical with respect to the first straight line
  • the two second radiation feedings The electric portion 421 is symmetrical with respect to the second straight line
  • the second transmission line feeding portion 422 itself is symmetrical with respect to the second straight line
  • the two third radiation feeding portions 431 are symmetrical with respect to the first straight line
  • the third transmission line feeding portion 432 itself is symmetrical with respect to the first straight line
  • the two fourth radiation feeding portions 441 are symmetrical with respect to the second line
  • the fourth transmission line feeding portion 442 itself is opposite to the
  • the second line is symmetrical, and the first line and the second line are perpendicular or overlapping.
  • the antenna 100 By providing the first transmission line 21, the second transmission line 22, the third transmission line 23, the fourth transmission line 24, the first power feeding portion 41, the second power feeding portion 42, the third power feeding portion 43, and the fourth power feeding portion 44, and The polarization directions of the radiated electromagnetic waves excited by the adjacent two feeding portions of the first power feeding portion 41, the second power feeding portion 42, the third power feeding portion 43, and the fourth power feeding portion 44 are perpendicular to each other, not only the antenna 100 becomes a dual-polarized antenna, and when the first-feed portion 41 and the third-feed portion 43 and the second-feed portion 42 and the fourth-feed portion 44 of the same polarization are excited by a phase difference of 180 degrees
  • the antenna 100 can also be made to achieve balanced feed.
  • the antenna 100 is a single-polarized antenna, and the antenna 100 includes the first transmission line 21, the first connection portion 31, and the first power feeding portion 41, preferably The two first radiation feeding portions 411 of the first power feeding portion 41 and the first transmission line feeding portion 412 I am symmetrical about the same line.
  • the first connecting portion 31 disposed opposite to the radiation sheet reference ground 11, two first radiation feeding portions 411 located in a plane, and the first transmission line feeding portion 412, based on the inductive characteristic strength and The distance is proportional to the principle that the capacitive characteristic intensity is inversely proportional to the distance, since the distance between the first connection 31 and the radiation sheet reference ground 11 is greater than the first transmission line feeding portion 412 and the two a distance between the radiation feeding portions 411, therefore, the inductive characteristic of the first connecting portion 31 is strong, and the capacitive characteristics of the first transmission line feeding portion 412 are strong, so that the actual input impedance presented by the antenna is close.
  • the ideal transmission impedance thereby reducing the standing wave ratio, so that the bandwidth of the antenna 100 is widened, which solves the problem in the prior art that the direct connection between the coaxial line and the radiation piece is substantially perpendicular to the radiation piece.
  • the antenna 100 is a dual-polarized antenna, and the antenna 100 includes a first transmission line 21, a second transmission line 22, a first connection portion 31, a second connection portion 32, a first power feeding portion 41, and The second feeding portion 42 is perpendicular to the polarization direction of the radiated electromagnetic waves excited by the first feeding portion 41 and the second feeding portion 42.
  • the two first radiation feedings of the first feeding portion 41 are The electric portion 411 and the first transmission line feeding portion 412 are themselves symmetrical with respect to the first straight line, and the two second radiation feeding portions 421 of the second feeding portion 42 and the second transmission line feeding portion 422 The self is symmetrical with respect to the first straight line, and the first straight line and the second straight line are perpendicular.
  • the antenna 100 is a single-polarized antenna, and the antenna 100 includes a first transmission line 21, a second transmission line 22, a first connection portion 31, a second connection portion 32, a first power feeding portion 41, and
  • the second feeding portion 42 is perpendicular to the polarization direction of the radiated electromagnetic waves excited by the first feeding portion 41 and the second feeding portion 42.
  • the two first radiation feedings of the first feeding portion 41 are The electric portion 411 and the first transmission line feeding portion 412 are themselves symmetrical with respect to the first straight line, and the two second radiation feeding portions 421 of the second feeding portion 42 and the second transmission line feeding portion 422 The self is symmetrical with respect to the first straight line, and the first straight line and the second straight line overlap.
  • Two first radiation feeding portions 411 and two second radiation feeding portions located in a plane by providing the first connecting portion 31 and the second connecting portion 32 disposed opposite to the radiation sheet reference ground 11 421, and the first transmission line feeding portion 412 and the second transmission line feeding portion 422 are strong based on inductive characteristics
  • the distance is proportional to the distance, and the capacitive characteristic intensity is inversely proportional to the distance, because the distance between the first connection 31, the second connecting portion 32 and the radiation sheet reference ground 11 is greater than the first transmission line feed
  • the capacitive characteristics of the first transmission line feeding portion 412 and the second transmission line feeding portion 422 are strong, so that the actual input impedance presented by the antenna is close to the ideal transmission impedance, thereby reducing the standing wave ratio, so that the bandwidth of the antenna 100 is Broadening, solving the prior art that the inner conductor between the coaxial line and the radiation piece is directly connected, and the inner conductor substantially perpendicular to the radiation piece has a large inductive characteristic in the circuit, so that the bandwidth of the antenna is narrow Technical problem.
  • the vertical, overlapping, 180 degrees, symmetry, etc. are not absolute geometric vertical, overlapping, 180 degrees, symmetrical, tolerances and errors generated during manufacturing and assembly, resulting in an absolute vertical
  • overlapping, 180 degrees, and symmetrical it also falls within the range of vertical, overlapping, 180 degrees, and symmetry.
  • the antenna 100 further includes a bottom plate 70 for supporting the top plate 60.
  • a surface portion of the bottom plate 70 opposite to the radiation sheet 10 is depressed to form a recess 71, and the radiation sheet reference ground 30 is disposed at the bottom of the recess 71.
  • the bottom plate 70 may be made of a metal material.
  • the radiation sheet reference ground 30 is disposed at the bottom of the groove 71.
  • the radiation sheet refers to the ground 30 and the bottom plate.
  • 70 is a one-piece molding.
  • the bottom plate 70 is used to support the top plate 60.
  • the top plate 60 may be supported by other means.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, the fourth transmission line 24, the first connection portion 31, the second connection portion 32, the third connection portion 33, and the The four connection portions 34, the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are all disposed on the top plate 60, and in other embodiments, As shown in FIGS. 12 and 13, the antenna 100 includes not only the top plate 60 but also a bottom plate 90 disposed opposite the top plate 60, the bottom plate 90 including an upper surface 91 opposite the top plate 60 and A lower surface 92 opposite the upper surface 91.
  • the electric portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are disposed on the top plate 60.
  • the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are disposed on the upper surface 91 of the top plate 60.
  • the radiation sheet 10, the two first radiation feeding portions 411, the two second radiation feeding portions 421, the two third radiation feeding portions 431, and the two fourth radiation feeding portions 441, the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 are disposed on the lower surface 92 of the top plate 60, or the radiation The sheet 10, the two first radiation feeding portions 411, the two second radiation feeding portions 421, the two third radiation feeding portions 431, the two fourth radiation feeding portions 441, and the first transmission line feeding portion 412
  • the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion 442 may also be disposed on different surfaces (the upper surface 91 or the lower surface 92) of the top plate 60.
  • the radiation sheet reference ground 30 is disposed on the bottom plate 90 and corresponds to the position of the radiation sheet 10. In this embodiment, the radiation sheet reference ground 30 is disposed on the surface of the bottom layer 90 opposite to the top layer 60. In other embodiments, the radiation sheet reference ground 30 may also be disposed in the The bottom plate 90 is on the surface opposite the top plate 60.
  • the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 are disposed on one of the upper surface 91 and the lower surface 92, and the transmission line reference ground 40 is disposed on the upper surface On the other of the lower surface 92 and the lower surface 92, a projection of the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 on the surface on which the transmission line reference ground 40 is located is located at the transmission line Reference ground 40 is on the projection on the surface.
  • the first connecting portion 31, the second connecting portion 32, the third connecting portion 33 and the fourth connecting portion 34 are disposed between the top plate 60 and the bottom plate 90 for electrically connecting the first transmission line
  • the first connecting portion 31, the second connecting portion 32, the third connecting portion 33, and the fourth connecting portion 34 are specifically probes.
  • the first connecting portion 31, The second connection portion 32, the third connection portion 33, and the fourth connection portion 34 may be other conductors.
  • the antenna 100 shown in FIG. 12 and FIG. 13 transmits a signal
  • signals on the first transmission line 21, the second transmission line 22, the third transmission line 23, and the fourth transmission line 24 pass through the first connection portion 31, respectively.
  • the second connecting portion 32, the third connecting portion 33, and the fourth connecting portion 34 are transmitted to the first transmission line feeding portion 412, the second transmission line feeding portion 422, the third transmission line feeding portion 432, and the fourth transmission line feeding portion. 442.
  • the first transmission line feeding unit 412, the second transmission line feeding unit 422, the third transmission line feeding unit 432, and the fourth transmission line feeding unit 442 are respectively coupled to the two first radiation feeding units 411 and the two The two radiation feeding portions 421, the two third radiation feeding portions 431, and the two fourth radiation feeding portions 441 are radiated through the radiation sheet 10; when receiving the signal, the radiation sheet 10 will be received.
  • the signal is coupled to the first transmission line via two first radiation feeding portions 411, two second radiation feeding portions 421, two third radiation feeding portions 431, and two fourth radiation feeding portions 441, respectively.
  • Power feeding unit 412, second transmission line feeding unit 422, third transmission line feeding unit 432, and fourth transmission The line feeding portion 442 is further transmitted to the first transmission line 21, the second transmission line 22, and the first connection portion 31, the second connection portion 32, the third connection portion 33, and the fourth connection portion 34, respectively.
  • the present application further provides a communication device, as shown in FIG. 14, the communication device 300 includes the antenna 100 in the first embodiment and a signal for receiving or from the antenna 100.
  • 100 Transceiver 200 that transmits a signal.
  • the above communication device is based on the first connection portion 31 disposed opposite to the radiation sheet reference ground 11, two first radiation feeding portions 411 located in a plane, and the first transmission line feeding portion 412, based on perceptual The characteristic intensity is proportional to the distance, and the capacitive characteristic intensity is inversely proportional to the distance, since the distance between the first connecting portion 31 and the radiation sheet reference ground 11 is greater than the first transmission line feeding portion 412 and the The distance between the two first radiation feeding portions 411, therefore, the first connection The inductive feature of the interface 31 is strong, and the capacitive characteristic of the first transmission line feeding portion 412 is strong, so that the actual input impedance presented by the antenna is close to the ideal transmission impedance, thereby reducing the standing wave ratio, so that the antenna 100 Broadening the bandwidth, which solves the problem that the inner conductor of the prior art is directly connected to the radiating strip and the inner conductor substantially perpendicular to the radiating strip has a large inductive characteristic in the circuit, thereby making the bandwidth of the antenna Narrow

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Abstract

本发明公开一种天线和通信设备。所述天线包括:辐射片,用于发射和接收射频信号;辐射片参考地,与所述辐射片相对设置;第一传输线,用于传输所述射频信号;传输线参考地,与所述第一传输线相对设置;第一连接部,与所述第一传输线连接,并与所述辐射片参考地相对设置;第一馈电部,包括第一传输线馈电部和两个第一辐射馈电部,所述两个第一辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第一传输线馈电部通过所述第一连接部与所述第一传输线连接,以与所述第一传输线之间能够相互传输所述射频信号;所述两个第一辐射馈电部和所述第一传输线馈电部之间进行相互耦合馈电。

Description

一种天线和通信设备 技术领域
本发明涉及移动通信技术领域,尤其涉及一种天线和通信设备。
背景技术
移动通信系统是有线与无线的综合体,而在移动通信系统中,空间无线信号的发射和接收都是依靠移动天线来实现的。由此可见,天线对于移动通信网络来说,起着一个举足轻重的作用。
如图15所示,为现有技术中天线800的剖面示意图。天线800包括辐射片81、与所述辐射片81相对设置的参考地82、同轴线83和设置于所述辐射片81和参考地82之间的电路板84。所述同轴线83的外导体焊接于所述参考地82上,所述同轴线83的内导体穿过电路板84焊接于所述辐射片81上,所述天线80通过同轴线83进行馈电。
然而,由于上述同轴线83与辐射片81之间直接连接,且与所述辐射片81和所述参考地82基本垂直的内导体在电路中呈较大感性特征,从而使得所述天线800的带宽较窄。
发明内容
本申请提供一种天线和通信设备,用于解决现有技术中天线的带宽较窄的技术问题。
本发明实施例第一方面提供一种天线,所述天线包括:辐射片,用于发射和接收射频信号;辐射片参考地,与所述辐射片相对设置;第一传输线,用于传输所述射频信号;传输线参考地,与所述第一传输线相对设置;第一连接部,与所述第一传输线连接,并与所述辐射片参考地相对设置;
第一馈电部,包括第一传输线馈电部和两个第一辐射馈电部,所述两个 第一辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第一传输线馈电部通过所述第一连接部与所述第一传输线连接,以与所述第一传输线之间能够相互传输所述射频信号;所述两个第一辐射馈电部和所述第一传输线馈电部之间进行相互耦合馈电;
其中,所述两个第一辐射馈电部设置于一平面上,所述第一传输线馈电部设置于所述两个第一辐射馈电部之间,或所述第一传输线馈电部在所述平面内的投影位于所述两个第一辐射馈电部在所述平面内的投影之间;所述第一连接部与所述辐射片参考地之间的距离大于所述第一传输线馈电部与所述第一辐射馈电部之间的距离。
在第一方面第一种可能的实现方式中,所述天线还包括:第二传输线,用于传输所述射频信号,并与所述传输线参考地相对设置;第二连接部,与所述第二传输线连接,并与所述辐射片参考地相对设置;第二馈电部,包括第二传输线馈电部和两个第二辐射馈电部,所述两个第二辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第二传输线馈电部通过所述第二连接部与所述第二传输线连接,以与所述第二传输线之间能够相互传输所述射频信号;所述两个第二辐射馈电部和所述第二传输线馈电部之间进行相互耦合馈电,
其中,所述两个第二辐射馈电部设置于所述平面上,所述第二传输线馈电部设置于所述两个第二辐射馈电部之间,或所述第二传输线馈电部在所述平面内的投影位于所述两个第二辐射馈电部在所述平面内的投影之间;所述第二连接部与所述辐射片参考地之间的距离大于所述第二传输线馈电部与所述第二辐射馈电部之间的距离;所述第二馈电部和所述第一馈电部所激励的辐射电磁波的极化方向垂直或者相位差为180度。
结合第一方面的第一种可能的实现方式,在第一方面第二种可能的实现方式中,所述所述两个第一辐射馈电部相对于第一直线对称,所述第一传输线馈电部自己相对于所述第一直线对称;所述两个第二辐射馈电部相对于第二直线对称,所述第二传输馈电部自己相对于所述第二直线对称,所述第一 直线和所述第二直线垂直或者重叠。
结合第一方面的第一或第二种可能的实现方式,在第一方面第三种可能的实现方式中,所述天线还包括顶层板,所述顶层板包括下表面和与所述下表面相背的上表面,所述辐射片设置于所述上表面或所述下表面上;
所述第一传输线、所述第二传输线、所述第一连接部和所述第二连接部设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上;
所述两个第一辐射馈电部、所述第一传输线馈电部、所述两个第二辐射馈电部和所述第二传输线馈电部设置于所述上表面或所述下表面上。
结合第一方面的第一或第二种可能的实现方式,在第一方面第四种可能的实现方式中,所述天线还包括顶层板和与顶层板相对设置的底层板,所述底层板包括与所述顶层板相对的上表面和与所述上表面相背的下表面;
所述辐射片、所述两个第一辐射馈电部、所述两个第二辐射馈电部、所述第一传输线馈电部和所述第二传输线馈电部设置于所述顶层板上;
所述辐射片参考地设置于所述底层板上,所述辐射片在所述辐射片参考地上的投影在所述辐射片参考地上;
所述第一传输线和所述第二传输线设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上,且所述第一传输线和所述第二传输线在所述传输线参考地在所述表面上的投影位于所述传输线参考地在该表面的投影上;
所述第一连接部和所述第二连接部位于所述顶层板和所述底层板之间。
结合第一方面的第一种可能的实现方式,在第一方面第五种可能的实现方式中,所述天线还包括:第三传输线和第四传输线,用于传输所述射频信号,并与所述传输线参考地相对设置;第三连接部和第四连接部,与所述辐射片参考地相对设置,所述第三连接部与所述第三传输线连接,所述第四连接部与所述第四传输线连接;
第三馈电部,包括第三传输线馈电部和两个第三辐射馈电部,所述两个 第三辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第三传输线馈电部通过所述第三连接部与所述第三传输线连接,以与所述第三传输线之间能够相互传输所述射频信号;所述两个第三辐射馈电部和所述第三传输线馈电部之间进行相互耦合馈电,其中,所述两个第三辐射馈电部设置于所述平面上,所述第三传输线馈电部设置于所述两个第三辐射馈电部之间,或所述第三传输线馈电部在所述平面内的投影位于所述两个第三辐射馈电部在所述平面内的投影之间;所述第三连接部与所述辐射片参考地之间的距离大于所述第三传输线馈电部与所述第三辐射馈电部之间的距离;
第四馈电部,包括第四传输线馈电部和两个第四辐射馈电部,所述两个第四辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第四传输线馈电部通过所述第四连接部与所述第四传输线连接,以与所述第四传输线之间能够相互传输所述射频信号;所述两个第四辐射馈电部和所述第四传输线馈电部之间进行相互耦合馈电,其中,所述两个第四辐射馈电部设置于所述平面上,所述第四传输线馈电部设置于所述两个第四辐射馈电部之间,或所述第四传输线馈电部在所述平面内的投影位于所述两个第四辐射馈电部在所述平面内的投影之间;所述第四连接部与所述辐射片参考地之间的距离大于所述第四传输线馈电部与所述第四辐射馈电部之间的距离;
所述辐射片位于所述第一连接部、第二连接部、第三连接部和第四连接部围城的区域内,所述第一馈电部、第二馈电部、第三馈电部和第四馈电部中任一两个馈电部所激励的辐射电磁波的极化方向垂直或相位差为180度。
结合第一方面的第五种可能的实现方式,在第一方面第六种可能的实现方式中,所述两个第一辐射馈电部相对于第一直线对称,所述第一传输线馈电部自己相对于所述第一直线对称;所述两个第二辐射馈电部相对于第二直线对称,所述第二传输馈电部自己相对于所述第二直线对称,所述第一直线和所述第二直线垂直;所述两个第三辐射馈电部相对于第一直线对称,所述 第三传输线馈电部自己相对于所述第一直线对称;所述两个第四辐射馈电部相对于第二直线对称,所述第四传输馈电部自己相对于所述第二直线对称,所述第一直线和所述第二直线垂直或者重叠。
结合第一方面的第五或第六种可能的实现方式,在第一方面第七种可能的实现方式中,所述天线还包括顶层板,所述顶层板包括下表面和与所述下表面相背的上表面,所述辐射片设置于所述上表面或所述下表面上;
所述第一传输线、所述第二传输线、所述第三传输线、所述第一连接部、所述第二连接部和所述第三连接部设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上;
所述两个第一辐射馈电部、所述第一传输线馈电部、所述两个第二辐射馈电部、所述第二传输线馈电部、所述两个第三辐射馈电部和所述第三传输线馈电部设置于所述上表面或所述下表面上。
结合第一方面的第五或第六种可能的实现方式,在第一方面第八种可能的实现方式中,所述天线还包括顶层板和与顶层板相对设置的底层板,所述底层板包括与所述顶层板相对的上表面和与所述上表面相背的下表面;
所述辐射片、所述两个第一辐射馈电部、所述两个第二辐射馈电部、所述两个第三辐射馈电部、所述第一传输线馈电部、所述第二传输线馈电部和所述第三传输线馈电部设置于所述顶层板上;
所述辐射片参考地设置于所述底层板上,所述辐射片在所述辐射片参考地上的投影在所述辐射片参考地上;
所述第一传输线、所述第二传输线和第三传输线设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上,且所述第一传输线、所述第二传输线和所述第三传输线在所述传输线参考地在所述表面上的投影位于所述传输线参考地在该表面的投影上;
所述第一连接部、所述第二连接部和所述第三连接部位于所述顶层板和所述底层板之间。
结合第一方面,在第一方面第九种可能的实现方式中,所述两个第一辐射馈电部相对于一直线对称,所述第一传输线馈电部自己相对于所述直线对称。
结合第一方面、第一方面的第九种可能的实现方式,在第一方面第三种可能的实现方式中,所述天线还包括顶层板,所述顶层板包括下表面和与所述下表面相背的上表面,所述辐射片设置于所述上表面或所述下表面上;
所述第一传输线和所述第一连接部设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上;
所述两个第一辐射馈电部和所述第一传输线馈电部设置于所述上表面或所述下表面上。
结合第一方面的第三种、第七种或第十种可能的实现方式,在第一方面第十一种可能的实现方式中,所述辐射片的数目为两个,分别设置于所述上表面和所述下表面上。
结合第一方面的第三种、第七种、第十种或第十一种可能的实现方式,在第一方面第十二种可能的实现方式中,所述天线还包括与所述辐射片相对设置的底板,所述底板上与所述辐射片相对的表面,部分下陷形成一凹槽,所述辐射片参考地设置于所述凹槽底部。
结合第一方面、第一方面第九种可能的实现方式,在第一方面第十三种可能的实现方式中,所述天线还包括顶层板和与顶层板相对设置的底层板,所述底层板包括与所述顶层板相对的上表面和与所述上表面相背的下表面;
所述辐射片、所述两个第一辐射馈电部和所述第一传输线馈电部设置于所述顶层板上;
所述辐射片参考地设置于所述底层板上,所述辐射片在所述辐射片参考地上的投影在所述辐射片参考地上;
所述第一传输线设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上,且所述第一传 输线在传输线参考地在所述表面上的投影位于所述传输线参考地在该表面的投影上;
所述第一连接部位于所述顶层板和所述底层板之间。
本发明实施例第二方面提供了一种通信设备,所述通信设备包括天线和用于接收来自所述天线的信号或者向所述天线发送信号的收发器。
本申请有益效果如下:
上述天线通过设置与所述辐射片参考地相对设置的所述第一连接部、位于一平面内的两个第一辐射馈电部和位于所述两个第一辐射馈电部之间或者投影位于所述两个第一辐射馈电部之间的第一传输线馈电部,进一步,基于感性特征强度与距离呈正比,容性特征强度与距离呈反比的原理,由于所述第一连接部与所述辐射片参考地之间的距离大于所述第一传输线馈电部与所述第一辐射馈电部之间的距离,因此,所述第一连接部的感性特征较强,所述第一传输线馈电部的容性特征较强,使得天线呈现的实际输入阻抗接近理想的传输阻抗,从而降低驻波比,以使得所述天线的带宽拓宽,解决了现有技术中由于上述同轴线与辐射片之间直接连接,且与所述辐射片基本垂直的内导体在电路中呈较大感性特征,从而使得所述天线的带宽较窄的技术问题。
附图说明
图1为本申请第一实施方式的天线的分解结构示意图;
图2为图1中天线的俯视图;
图3为图2中天线的A-A向剖面示意图;
图4为图1中天线的驻波图;
图5为本申请第二实施方式天线的俯视图;
图6为图5中天线的剖面示意图;
图7为本申请第三实施方式天线的剖面示意图;
图8为本申请第四实施方式天线的剖面示意图;
图9为本申请第五实施方式天线的俯视图;
图10为本申请第六实施方式天线的俯视图;
图11为本申请第七实施方式天线的俯视图;
图12为本申请第八实施方式天线的俯视图;
图13为图12中天线的剖面示意图;
图14为本申请通信的结构示意图;
图15为现有技术天线的剖面示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分的实施例,而不是全部的实施例。
实施例一
如图1所示,为本申请第一较佳实施方式天线100的分解结构示意图。所述天线100包括辐射片10、辐射片参考地11、第一传输线21、第二传输线22、第三传输线23、第四传输线24、传输线参考地211、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44。
所述辐射片10用于发射和接收射频信号,所述辐射片10可以具体为铜片,或者是附着在一板上的铜箔,所述辐射片10的形状可以根据需要设置,如设置为对称形状,也可以设置为不对称形状,在本实施方式中,以所述辐射片10的形状为对称形状进行说明,所述辐射片10自己相对于四条对称线,所述四条对称线相交于同一交点,且相邻的两条对称线之间的夹角为45度。
所述辐射片参考地11与所述辐射片10相对设置,以形成所述辐射片10的参考地,所述辐射片11在所述辐射片参考地11所在的平面上的投影位于所述辐射片参考地11在该平面内的投影上。
所述第一传输线21、第二传输线22、第三传输线23和第四传输线24均用于传输所述射频。所述第一传输线21、第二传输线22、第三传输线23和 第四传输线24可以为直线型,也可以为弯曲的形状,或者其它形状。所述第一传输线21、第二传输线22、第三传输线23和第四传输线24的形状可以相同,也可以不同。在本实施方式中,所述第一传输线21、第二传输线22、第三传输线23和第四传输线24具体为微带线,在其它实施方式中,所述第一传输线21、第二传输线22、第三传输线23和第四传输线24可以共面波导、带状线等。
所述第一传输线21、第二传输线22、第三传输线23和第四传输线24均与所述传输线参考地211相对设置。所述第一传输线21、第二传输线22、第三传输线23和第四传输线24在所述传输线参考地211所在的平面上的投影位于所述传输线21在该平面上的投影上。
所述第一连接部31与所述第一传输线21连接,所述第二连接部32与所述第二传输线22连接,所述第三连接部33与所述第三传输线23连接,所述第四连接部34与所述第四传输线24连接。第一连接部31、第二连接部32、第三连接部33和第四连接部34与所述辐射片参考地11相对设置,所述第一连接部31、第二连接部32、第三连接部33和第四连接部34在所述辐射片参考地11所在的平面上的投影位于所述辐射片参考地11在该平面上的投影上。
在本实施方式中,所述天线100还包括具有上表面和与上表面相背的下表面的顶层板60,所述顶层板60用于支撑和固定所述辐射片10、第一馈电部41、第二馈电部42、第三馈电部43、第四馈电部44、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线21、第二传输线22、第三传输线23和第四传输线24,所述顶层板60可以为电路板、钢片、塑胶片等。具体地,在本实施方式中,第一馈电部41、第二馈电部42、第三馈电部43、第四馈电部44、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线21、第二传输线22、第三传输线23和第四传输线24均设置于所述上表面上,所述传输线参考地211设置于所述下表面上。在其它实施方式中,所述第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44可以设置于下表面或者上表面上,所述第一连接部31、第二连 接部32、第三连接部33和第四连接部34可以设置于下表面或者上表面上,所述第一传输线21、第二传输线22、第三传输线23和第四传输线24设置于上表面和下表面中的一个表面上,所述传输线参考地211设置于上表面和下表面中的另一个表面上。
对应地,在所述天线100包括顶层板60时,所述辐射片10设置于所述上表面或所述下表面上。如图3所示,在所述顶层板60的上表面设置所述辐射片10,如图6所示,在所述顶层板60的下表面上设置所述辐射片10。在其它实施方式中,如图7所示,所述辐射片10的数目可以为两个,所述两个辐射片10分别设置于所述上表面和所述下表面上。
在其它实施方式中,可以不设置顶层板60的方式来实现支撑和固定的作用,通过其它方式如支架等来实现支撑和固定的作用。
在本实施方式中,所述“或/和”是指两者间的关系描述,如A或/和B包括三种情况,第一种是只有A存在,第二种是只有B存在,第三种是A和B都存在。
所述第一馈电部41包括两个第一辐射馈电部411和第一传输线馈电部412,所述两个第一辐射馈电部411和所述第一传输线馈电部412之间能够进行相互耦合馈电。所述两个第一辐射馈电部411与所述辐射片10连接,用于接收所述辐射片10的射频信号或者向所述辐射片10传递射频信号。所述第一传输线馈电部412通过所述第一连接部31与所述第一传输线21连接,也就是说,所述第一连接部31用于连接所述第一传输线馈电部412和所述第一传输线21,使得所述第一传输线馈电部412与所述第一传输线21之间能够通过所述第一连接部31相互进行射频信号传输。
其中,所述两个第一辐射馈电部411设置于一平面上,所述第一传输线馈电部412设置于所述两个第一辐射馈电部411之间,或所述第一传输线馈电部412在所述平面内的投影位于所述两个第一辐射馈电部411在所述平面内的投影之间,使得所述第一传输线馈电部412与所述两个第一辐射馈电部411能够进行相互耦合馈电。所述第一连接部31与所述辐射片参考地11之间 的距离大于所述第一传输线馈电部412与所述第一辐射馈电部411之间的距离。
所述第一传输线21上的信号通过所述第一连接部31传输到所述第一传输线馈电部412,再耦合到两个第一辐射馈电部411上,通过所述辐射片10辐射出去;在接收信号时,所述辐射片10将接收到的信号通过两个第一辐射馈电部411耦合到所述第一传输线馈电部412上,再通过所述第一连接部31传给所述第一传输线21。
所述第二馈电部42包括两个第二辐射馈电部421和第二传输线馈电部422,所述两个第二辐射馈电部421和所述第二传输线馈电部422之间能够进行相互耦合馈电。所述两个第二辐射馈电部421与所述辐射片10连接,用于接收所述辐射片10的射频信号或者向所述辐射片10传递射频信号。所述第二传输线馈电部422通过所述第二连接部32与所述第二传输线22连接,也就是说,所述第二连接部32用于连接所述第二传输线馈电部422和所述第二传输线22,使得所述第二传输线馈电部422与所述第二传输线22之间能够通过所述第二连接部32相互进行射频信号传输。
其中,所述两个第二辐射馈电部421设置于所述两个第一辐射馈电部411所设置的平面上,所述第二传输线馈电部422设置于所述两个第二辐射馈电部421之间,或所述第二传输线馈电部422在所述平面内的投影位于所述两个第二辐射馈电部421在所述平面内的投影之间,使得所述第二传输线馈电部422与所述两个第二辐射馈电部421能够进行相互耦合馈电。所述第二连接部32与所述辐射片参考地11之间的距离大于所述第二传输线馈电部422与所述第二辐射馈电部421之间的距离。
所述第二传输线22上的信号通过所述第二连接部32传输到所述第二传输线馈电部422,再耦合到两个第二辐射馈电部421上,通过所述辐射片10辐射出去;在接收信号时,所述辐射片10将接收到的信号通过两个第二辐射馈电部421耦合到所述第二传输线馈电部422上,再通过所述第二连接部32传给所述第二传输线22。
所述第三馈电部43包括两个第三辐射馈电部431和第三传输线馈电部432,所述两个第三辐射馈电部431和所述第三传输线馈电部432之间能够进行相互耦合馈电。所述两个第三辐射馈电部431与所述辐射片10连接,用于接收所述辐射片10的射频信号或者向所述辐射片10传递射频信号。所述第三传输线馈电部432通过所述第三连接部33与所述第三传输线23连接,也就是说,所述第三连接部33用于连接所述第三传输线馈电部432和所述第三传输线23,使得所述第三传输线馈电部432与所述第三传输线23之间能够通过所述第三连接部33相互进行射频信号传输。
其中,所述两个第三辐射馈电部431设置于所述两个第一辐射馈电部411所设置的平面上,所述第三传输线馈电部432设置于所述两个第三辐射馈电部431之间,或所述第三传输线馈电部432在所述平面内的投影位于所述两个第三辐射馈电部431在所述平面内的投影之间,使得所述第三传输线馈电部432与所述两个第三辐射馈电部431能够进行相互耦合馈电。所述第三连接部33与所述辐射片参考地11之间的距离大于所述第三传输线馈电部432与所述第三辐射馈电部431之间的距离。
所述第三传输线23上的信号通过所述第三连接部33传输到所述第三传输线馈电部432,再耦合到两个第三辐射馈电部431上,通过所述辐射片10辐射出去;在接收信号时,所述辐射片10将接收到的信号通过两个第三辐射馈电部431耦合到所述第三传输线馈电部432上,再通过所述第三连接部33传给所述第三传输线23。
所述第四馈电部44包括两个第四辐射馈电部441和第四传输线馈电部442,所述两个第四辐射馈电部441和所述第四传输线馈电部442之间能够进行相互耦合馈电。所述两个第四辐射馈电部441与所述辐射片10连接,用于接收所述辐射片10的射频信号或者向所述辐射片10传递射频信号。所述第四传输线馈电部442通过所述第四连接部34与所述第四传输线24连接,也就是说,所述第四连接部34用于连接所述第四传输线馈电部442和所述第四传输线24,使得所述第四传输线馈电部442与所述第四传输线24之间能够通 过所述第四连接部34相互进行射频信号传输。
其中,所述两个第四辐射馈电部441设置于所述两个第一辐射馈电部411所设置的平面上,所述第四传输线馈电部442设置于所述两个第四辐射馈电部441之间,或所述第四传输线馈电部442在所述平面内的投影位于所述两个第四辐射馈电部441在所述平面内的投影之间,使得所述第四传输线馈电部442与所述两个第四辐射馈电部441能够进行相互耦合馈电。所述第四连接部34与所述辐射片参考地11之间的距离大于所述第四传输线馈电部442与所述第四辐射馈电部441之间的距离。
所述辐射片10位于所述第一连接部31、第二连接部32、第三连接部33和第四连接部34围成的区域内,所述第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44中任一两个馈电部所激励的辐射电磁波的极化方向垂直或相位差为180度。
所述第四传输线24上的信号通过所述第四连接部34传输到所述第四传输线馈电部442,再耦合到两个第四辐射馈电部441上,通过所述辐射片10辐射出去;在接收信号时,所述辐射片10将接收到的信号通过两个第四辐射馈电部441耦合到所述第四传输线馈电部442上,再通过所述第四连接部34传给所述第四传输线24。
通过设置与所述辐射片参考地11相对设置的所述第一连接部31、第二连接部32、第三连接部33和第四连接部34,位于一平面内的两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431和两个第三辐射馈电部431,以及第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442,基于感性特征强度与距离呈正比,容性特征强度与距离呈反比的原理,由于所述第一连接部31、第二连接部32、第三连接部33、第四连接部34与所述辐射片参考地11之间的距离分别大于所述第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442与所述两个第一辐射馈电部411之间的距离,因此,所述第一连接部31、第二连接部32、第三连接部33、第四连接部34的感性 特征较强,所述第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442的容性特征较强,使得天线呈现的实际输入阻抗接近理想的传输阻抗,从而降低驻波比,以使得所述天线100的带宽拓宽,解决了现有技术中由于上述同轴线与辐射片之间直接连接,且与所述辐射片基本垂直的内导体在电路中呈较大感性特征,从而使得所述天线的带宽较窄的技术问题。
针对图1中所示的天线100,利用仿真软件进行建模仿真,其仿真结果如图4所示,天线100的高度(辐射片10和辐射片参考地30之间的距离)为15mm,在1710MHz-2170MHz的工作频段内,天线的电压驻波比VSWR小于1.5,即,回波损耗小于-14dB,此时,天线100的相对带宽为23.7%,实现了所需要的低剖面、宽带化的要求。
在本实施方式中,如图1、图2和图3所示,所述辐射片10、所述第一传输线21、第二传输线22、第三传输线23、第四传输线24、所述第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44均设置于所述顶层板60的上表面上,所述传输线参考地211设置于所述顶层板60的下表面上。所述第一传输线馈电部412设置于所述两个第一辐射馈电部411之间,所述第二传输线馈电部422设置于所述两个第二辐射馈电部421之间,所述第三传输线馈电部432设置于所述两个第三辐射馈电部431之间,所述第四传输线馈电部442设置于所述两个第四辐射馈电部441之间。在其它实施方式中,如图5和图6所示,所述辐射片10、两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441和所述传输线参考地211设置于所述顶层板60的下表面上,所述第一传输线21、第二传输线22、第三传输线23、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442设置于所述顶层板60的上表面上,所述第一传输线馈电部412在所述平面(即所述顶层板60的下表面)内的投 影位于所述两个第一辐射馈电部411在所述平面内的投影之间;所述第二传输线馈电部422在所述平面(即所述顶层板60的下表面)内的投影位于所述两个第二辐射馈电部421在所述平面内的投影之间;所述第三传输线馈电部432在所述平面(即所述顶层板60的下表面)内的投影位于所述两个第三辐射馈电部431在所述平面内的投影之间;所述第四传输线馈电部442在所述平面(即所述顶层板60的下表面)内的投影位于所述两个第四辐射馈电部441在所述平面内的投影之间。
又,如图7所示,所述辐射片10的数目为两个,分别设置于所述顶层板60的上表面和下表面上,所述顶层板60的上表面和下表面上均设置有与所述辐射片10连接的所述两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441。第一传输线21、第二传输线22、第三传输线23、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442设置于顶层板60的上表面上,所述传输线参考地40设置于所述顶层板60的下表面上。
在上述方式中,所述辐射片10、所述两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431和两个第四辐射馈电部441位于所述顶层板60的同一表面上,所述第一传输线21、第二传输线22、第三传输线23、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442也设置于所述顶层板60的同一表面上。在其它实施方式中,所述辐射片10、所述两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431和两个第四辐射馈电部441可以分别位于所述顶层板60的上表面和下表面上,所述第一传输线21、第二传输线22、第三传输线23、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442也可以分别位于所述顶层板 60的上表面和下表面上。如图8所示,所述第一传输线21、第二传输线22、第三传输线23、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431和两个第四辐射馈电部441设置于所述顶层板60的上表面上,所述辐射片10、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442设置于所述下表面上。
在本实施方式中,如图2所示,天线100包括第一传输线21、第二传输线22、第三传输线23、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44,所述第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44中相邻的两个馈电部所激励的辐射电磁波的极化方向垂直。优选地,所述两个第一辐射馈电部411相对于第一直线对称,所述第一传输线馈电部412自己相对于所述第一直线对称;所述两个第二辐射馈电部421相对于第二直线对称,所述第二传输线馈电部422自己相对于所述第二直线对称,所述两个第三辐射馈电部431相对于第一直线对称,所述第三传输线馈电部432自己相对于所述第一直线对称;所述两个第四辐射馈电部441相对于第二直线对称,所述第四传输线馈电部442自己相对于所述第二直线对称,所述第一直线和所述第二直线垂直或者重叠。通过设置第一传输线21、第二传输线22、第三传输线23、第四传输线24第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44,且第一馈电部41、第二馈电部42、第三馈电部43和第四馈电部44中相邻的两个馈电部所激励的辐射电磁波的极化方向垂直,不仅使得天线100成为双极化天线,而且当同极化的第一馈电部41和第三馈电部43以及第二馈电部42和第四馈电部44、激励的信号相位差为180度时,还能使得所述天线100实现平衡馈电。
在其它实施方式中,如图9所示,天线100为单极化天线,所述天线100包括所述第一传输线21、所述第一连接部31和所述第一馈电部41,优选地,所述第一馈电部41的两个第一辐射馈电部411和所述第一传输线馈电部412 自己相对于同一直线对称。通过设置与所述辐射片参考地11相对设置的所述第一连接部31,位于一平面内的两个第一辐射馈电部411,以及第一传输线馈电部412,基于感性特征强度与距离呈正比,容性特征强度与距离呈反比的原理,由于所述第一连接31与所述辐射片参考地11之间的距离大于所述第一传输线馈电部412与所述两个第一辐射馈电部411之间的距离,因此,所述第一连接部31的感性特征较强,所述第一传输线馈电部412的容性特征较强,使得天线呈现的实际输入阻抗接近理想的传输阻抗,从而降低驻波比,以使得所述天线100的带宽拓宽,解决了现有技术中由于上述同轴线与辐射片之间直接连接,且与所述辐射片基本垂直的内导体在电路中呈较大感性特征,从而使得所述天线的带宽较窄的技术问题。
又,如图10所示,天线100为双极化天线,所述天线100包括第一传输线21、第二传输线22、第一连接部31、第二连接部32、第一馈电部41和第二馈电部42,且第一馈电部41和第二馈电部42所激励的辐射电磁波的极化方向垂直,优选地,所述第一馈电部41的两个第一辐射馈电部411和所述第一传输线馈电部412自己相对于第一直线对称,所述第二馈电部42的两个第二辐射馈电部421和所述第二传输线馈电部422自己相对于第一直线对称,所述第一直线和所述第二直线垂直。
又,如图11所示,天线100为单极化天线,所述天线100包括第一传输线21、第二传输线22、第一连接部31、第二连接部32、第一馈电部41和第二馈电部42,且第一馈电部41和第二馈电部42所激励的辐射电磁波的极化方向垂直,优选地,所述第一馈电部41的两个第一辐射馈电部411和所述第一传输线馈电部412自己相对于第一直线对称,所述第二馈电部42的两个第二辐射馈电部421和所述第二传输线馈电部422自己相对于第一直线对称,所述第一直线和所述第二直线重叠。
通过设置与所述辐射片参考地11相对设置的所述第一连接部31和第二连接部32,位于一平面内的两个第一辐射馈电部411和两个第二辐射馈电部421、,以及第一传输线馈电部412和第二传输线馈电部422,基于感性特征强 度与距离呈正比,容性特征强度与距离呈反比的原理,由于所述第一连接31、第二连接部32与所述辐射片参考地11之间的距离分别大于所述第一传输线馈电部412、第二传输线馈电部422与所述两个第一辐射馈电部411之间的距离,因此,所述第一连接部31、第二连接部32的感性特征较强,所述第一传输线馈电部412、第二传输线馈电部422的容性特征较强,使得天线呈现的实际输入阻抗接近理想的传输阻抗,从而降低驻波比,以使得所述天线100的带宽拓宽,解决了现有技术中由于上述同轴线与辐射片之间直接连接,且与所述辐射片基本垂直的内导体在电路中呈较大感性特征,从而使得所述天线的带宽较窄的技术问题。
在本申请中,所述垂直、重叠、180度、对称等,并不是绝对的几何意义上的垂直、重叠、180度、对称,在制造和组装过程中产生的公差和误差,造成不是绝对垂直、重叠、180度、对称时,也属于该垂直、重叠、180度、对称的范围内。
如图3所示,所述天线100还包括底板70,所述底板70用于支撑所述顶层板60。所述底板70上与所述辐射片10相对的表面部分下陷形成一凹槽71,所述辐射片参考地30设置于所述凹槽71底部。所述底板70可以为金属材料制成。在本实施方式中,所述辐射片参考地30设置于所述凹槽71的底部,在其它实施方式中,如图6、图7和图8,所述辐射片参考地30和所述底板70为一体成型。在本实施方式中,所述底板70用于支撑所述顶层板60,在其它实施方式中,所述顶层板60可以通过其它方式支撑。
又,在上述实施方式中,所述第一传输线21、第二传输线22、第三传输线23和、第四传输线24、第一连接部31、第二连接部32、第三连接部33、第四连接部34、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442均设置在顶层板60上,在其它实施方式中,如图12和图13所示,所述天线100不仅包括顶层板60,还包括与顶层板60相对设置的底层板90,所述底层板90包括与所述顶层板60相对的上表面91和与所述上表面91相背的下表面92。
所述辐射片10、两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442设置于所述顶层板60上。在本实施方式中,所述辐射片10、两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442设置于所述顶层板60的上表面91上。在其它实施方式中,所述辐射片10、两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442设置于所述顶层板60的下表面92上,或者所述辐射片10、两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441、第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442也可以设置于所述顶层板60的不同表面(上表面91或者下表面92)上。
所述辐射片参考地30设置于所述底层板90上,并与所述辐射片10位置对应。在本实施方式中,所述辐射片参考地30设置于所述底层板90上与所述顶层板60相对的表面上,在其它实施方式中,所述辐射片参考地30也可以设置于所述底层板90上与所述顶层板60相背的表面上。所述第一传输线21、第二传输线22、第三传输线23和第四传输线24设置于所述上表面91和下表面92中的一个表面上,所述传输线参考地40设置于所述上表面91和所述下表面92中的另一个表面上,第一传输线21、第二传输线22、第三传输线23和第四传输线24在所述传输线参考地40所在的表面上的投影位于所述传输线参考地40在该表面上的投影上。第一连接部31、第二连接部32、第三连接部33和第四连接部34设置于所述顶层板60和所述底层板90之间,分别用于电性连接所述第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432、第四传输线馈电部442和所述第一传输线21、第二传输 线22、第三传输线23、第四传输线24。在本实施方式中,所述第一连接部31、第二连接部32、第三连接部33和第四连接部34具体为探针,在其它实施方式中,所述第一连接部31、第二连接部32、第三连接部33和第四连接部34可以为其它的导体。
图12和图13所示的天线100在发射信号时,所述第一传输线21、第二传输线22、第三传输线23和第四传输线24上的信号分别通过所述第一连接部31、第二连接部32、第三连接部33和第四连接部34传给所述第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442,通过第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442分别耦合到两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441上,通过所述辐射片10辐射出去;在接收信号时,所述辐射片10将接收到的信号通过两个第一辐射馈电部411、两个第二辐射馈电部421、两个第三辐射馈电部431、两个第四辐射馈电部441分别耦合到所述第一传输线馈电部412、第二传输线馈电部422、第三传输线馈电部432和第四传输线馈电部442上,再分别通过所述第一连接部31、第二连接部32、第三连接部33和第四连接部34传给所述第一传输线21、第二传输线22、第三传输线23和第四传输线24。
实施例二
基于同样的发明构思,本申请还提供一种通信设备,如图14所示,所述通信设备300包括实施例一中的天线100和用于接收来自所述天线100的信号或者向所述天线100发送信号的收发器200。
上述通信设备通过设置与所述辐射片参考地11相对设置的所述第一连接部31,位于一平面内的两个第一辐射馈电部411,以及第一传输线馈电部412,基于感性特征强度与距离呈正比,容性特征强度与距离呈反比的原理,由于所述第一连接部31与所述辐射片参考地11之间的距离大于所述第一传输线馈电部412与所述两个第一辐射馈电部411之间的距离,因此,所述第一连 接部31的感性特征较强,所述第一传输线馈电部412的容性特征较强,使得天线呈现的实际输入阻抗接近理想的传输阻抗,从而降低驻波比,以使得所述天线100的带宽拓宽,解决了现有技术中由于上述同轴线与辐射片之间直接连接,且与所述辐射片基本垂直的内导体在电路中呈较大感性特征,从而使得所述天线的带宽较窄的技术问题。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (15)

  1. 一种天线,其特征在于,所述天线包括:
    辐射片,用于发射和接收射频信号;
    辐射片参考地,与所述辐射片相对设置;
    第一传输线,用于传输所述射频信号;
    传输线参考地,与所述第一传输线相对设置;
    第一连接部,与所述第一传输线连接,并与所述辐射片参考地相对设置;
    第一馈电部,包括第一传输线馈电部和两个第一辐射馈电部,所述两个第一辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第一传输线馈电部通过所述第一连接部与所述第一传输线连接,以与所述第一传输线之间能够相互传输所述射频信号;所述两个第一辐射馈电部和所述第一传输线馈电部之间进行相互耦合馈电;
    其中,所述两个第一辐射馈电部设置于一平面上,所述第一传输线馈电部设置于所述两个第一辐射馈电部之间,或所述第一传输线馈电部在所述平面内的投影位于所述两个第一辐射馈电部在所述平面内的投影之间;
    所述第一连接部与所述辐射片参考地之间的距离大于所述第一传输线馈电部与所述第一辐射馈电部之间的距离。
  2. 如权利要求1所述的天线,其特征在于,所述天线还包括:
    第二传输线,用于传输所述射频信号,并与所述传输线参考地相对设置;
    第二连接部,与所述第二传输线连接,并与所述辐射片参考地相对设置;
    第二馈电部,包括第二传输线馈电部和两个第二辐射馈电部,所述两个第二辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第二传输线馈电部通过所述第二连接部与所述第二传输线连接,以与所述第二传输线之间能够相互传输所述射频信号;所述两个第二辐射馈电部和所述第二传输线馈电部之间进行相互耦合馈电,
    其中,所述两个第二辐射馈电部设置于所述平面上,所述第二传输线馈 电部设置于所述两个第二辐射馈电部之间,或所述第二传输线馈电部在所述平面内的投影位于所述两个第二辐射馈电部在所述平面内的投影之间;
    所述第二连接部与所述辐射片参考地之间的距离大于所述第二传输线馈电部与所述第二辐射馈电部之间的距离;
    所述第二馈电部和所述第一馈电部所激励的辐射电磁波的极化方向垂直或者相位差为180度。
  3. 如权利要求2所述的天线,其特征在于,所述两个第一辐射馈电部相对于第一直线对称,所述第一传输线馈电部自己相对于所述第一直线对称;所述两个第二辐射馈电部相对于第二直线对称,所述第二传输馈电部自己相对于所述第二直线对称,所述第一直线和所述第二直线垂直或者重叠。
  4. 如权利要求2或3所述的天线,其特征在于,所述天线还包括顶层板,所述顶层板包括下表面和与所述下表面相背的上表面,所述辐射片设置于所述上表面或所述下表面上;
    所述第一传输线、所述第二传输线、所述第一连接部和所述第二连接部设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上;
    所述两个第一辐射馈电部、所述第一传输线馈电部、所述两个第二辐射馈电部和所述第二传输线馈电部设置于所述上表面或所述下表面上。
  5. 如权利要求2或3所述的天线,其特征在于,所述天线还包括顶层板和与顶层板相对设置的底层板,所述底层板包括与所述顶层板相对的上表面和与所述上表面相背的下表面;
    所述辐射片、所述两个第一辐射馈电部、所述两个第二辐射馈电部、所述第一传输线馈电部和所述第二传输线馈电部设置于所述顶层板上;
    所述辐射片参考地设置于所述底层板上,所述辐射片在所述辐射片参考地上的投影在所述辐射片参考地上;
    所述第一传输线和所述第二传输线设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面 上,且所述第一传输线和所述第二传输线在所述传输线参考地在所述表面上的投影位于所述传输线参考地在该表面的投影上;
    所述第一连接部和所述第二连接部位于所述顶层板和所述底层板之间。
  6. 如权利要求2所述的天线,其特征在于,所述天线还包括:
    第三传输线和第四传输线,用于传输所述射频信号,并与所述传输线参考地相对设置;
    第三连接部和第四连接部,与所述辐射片参考地相对设置,所述第三连接部与所述第三传输线连接,所述第四连接部与所述第四传输线连接;
    第三馈电部,包括第三传输线馈电部和两个第三辐射馈电部,所述两个第三辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第三传输线馈电部通过所述第三连接部与所述第三传输线连接,以与所述第三传输线之间能够相互传输所述射频信号;所述两个第三辐射馈电部和所述第三传输线馈电部之间进行相互耦合馈电,其中,所述两个第三辐射馈电部设置于所述平面上,所述第三传输线馈电部设置于所述两个第三辐射馈电部之间,或所述第三传输线馈电部在所述平面内的投影位于所述两个第三辐射馈电部在所述平面内的投影之间;所述第三连接部与所述辐射片参考地之间的距离大于所述第三传输线馈电部与所述第三辐射馈电部之间的距离;
    第四馈电部,包括第四传输线馈电部和两个第四辐射馈电部,所述两个第四辐射馈电部与所述辐射片连接,用于接收所述辐射片的射频信号或者向所述辐射片传递射频信号;所述第四传输线馈电部通过所述第四连接部与所述第四传输线连接,以与所述第四传输线之间能够相互传输所述射频信号;所述两个第四辐射馈电部和所述第四传输线馈电部之间进行相互耦合馈电,其中,所述两个第四辐射馈电部设置于所述平面上,所述第四传输线馈电部设置于所述两个第四辐射馈电部之间,或所述第四传输线馈电部在所述平面内的投影位于所述两个第四辐射馈电部在所述平面内的投影之间;所述第四连接部与所述辐射片参考地之间的距离大于所述第四传输线馈电部与所述第 四辐射馈电部之间的距离;
    所述辐射片位于所述第一连接部、第二连接部、第三连接部和第四连接部围城的区域内,所述第一馈电部、第二馈电部、第三馈电部和第四馈电部中任一两个馈电部所激励的辐射电磁波的极化方向垂直或相位差为180度。
  7. 如权利要求6所述的天线,其特征在于,所述两个第一辐射馈电部相对于第一直线对称,所述第一传输线馈电部自己相对于所述第一直线对称;所述两个第二辐射馈电部相对于第二直线对称,所述第二传输馈电部自己相对于所述第二直线对称,所述第一直线和所述第二直线垂直;所述两个第三辐射馈电部相对于第一直线对称,所述第三传输线馈电部自己相对于所述第一直线对称;所述两个第四辐射馈电部相对于第二直线对称,所述第四传输馈电部自己相对于所述第二直线对称,所述第一直线和所述第二直线垂直或者重叠。
  8. 如权利要求6或7所述的天线,其特征在于,所述天线还包括顶层板,所述顶层板包括下表面和与所述下表面相背的上表面,所述辐射片设置于所述上表面或所述下表面上;
    所述第一传输线、所述第二传输线、所述第三传输线、所述第一连接部、所述第二连接部和所述第三连接部设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上;
    所述两个第一辐射馈电部、所述第一传输线馈电部、所述两个第二辐射馈电部、所述第二传输线馈电部、所述两个第三辐射馈电部和所述第三传输线馈电部设置于所述上表面或所述下表面上。
  9. 如权利要求6或7所述的天线,其特征在于,所述天线还包括顶层板和与顶层板相对设置的底层板,所述底层板包括与所述顶层板相对的上表面和与所述上表面相背的下表面;
    所述辐射片、所述两个第一辐射馈电部、所述两个第二辐射馈电部、所述两个第三辐射馈电部、所述第一传输线馈电部、所述第二传输线馈电部和所述第三传输线馈电部设置于所述顶层板上;
    所述辐射片参考地设置于所述底层板上,所述辐射片在所述辐射片参考地上的投影在所述辐射片参考地上;
    所述第一传输线、所述第二传输线和第三传输线设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上,且所述第一传输线、所述第二传输线和所述第三传输线在所述传输线参考地在所述表面上的投影位于所述传输线参考地在该表面的投影上;
    所述第一连接部、所述第二连接部和所述第三连接部位于所述顶层板和所述底层板之间。
  10. 如权利要求1所述的天线,其特征在于,所述两个第一辐射馈电部相对于一直线对称,所述第一传输线馈电部自己相对于所述直线对称。
  11. 如权利要求1或10所述的天线,其特征在于,所述天线还包括顶层板,所述顶层板包括下表面和与所述下表面相背的上表面,所述辐射片设置于所述上表面或所述下表面上;
    所述第一传输线和所述第一连接部设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上;
    所述两个第一辐射馈电部和所述第一传输线馈电部设置于所述上表面或所述下表面上。
  12. 如权利要求4、8或11所述的天线,其特征在于,所述辐射片的数目为两个,分别设置于所述上表面和所述下表面上。
  13. 如权利要求4、8、11或12所述的天线,其特征在于,所述天线还包括与所述辐射片相对设置的底板,所述底板上与所述辐射片相对的表面,部分下陷形成一凹槽,所述辐射片参考地设置于所述凹槽底部。
  14. 如权利要求1-10中任一权利要求所述的天线,其特征在于,所述天线还包括顶层板和与顶层板相对设置的底层板,所述底层板包括与所述顶层板相对的上表面和与所述上表面相背的下表面;
    所述辐射片、所述两个第一辐射馈电部和所述第一传输线馈电部设置于所述顶层板上;
    所述辐射片参考地设置于所述底层板上,所述辐射片在所述辐射片参考地上的投影在所述辐射片参考地上;
    所述第一传输线设置于所述上表面和下表面中的一个表面上,所述传输线参考地设置于所述上表面和所述下表面中的另一个表面上,且所述第一传输线在传输线参考地在所述表面上的投影位于所述传输线参考地在该表面的投影上;
    所述第一连接部位于所述顶层板和所述底层板之间。
  15. 一种通信设备,其特征在于,所述通信设备包括如权利要求1-14中任一权利要求所述的天线和用于接收来自所述天线的信号或者向所述天线发送信号的收发器。
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CN104201469A (zh) 2014-12-10
EP3168930A1 (en) 2017-05-17

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