CN106299664B - A kind of restructural magnetoelectricity dipole antenna of polarization - Google Patents

A kind of restructural magnetoelectricity dipole antenna of polarization Download PDF

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Publication number
CN106299664B
CN106299664B CN201610839811.XA CN201610839811A CN106299664B CN 106299664 B CN106299664 B CN 106299664B CN 201610839811 A CN201610839811 A CN 201610839811A CN 106299664 B CN106299664 B CN 106299664B
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China
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patch
pcb board
antenna
square
electric
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CN201610839811.XA
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Chinese (zh)
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CN106299664A (en
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葛磊
顾辉
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深圳大学
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Publication of CN106299664B publication Critical patent/CN106299664B/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Abstract

The invention discloses a kind of restructural magnetoelectricity dipole antennas of polarization, and including rectangular upper pcb board, rectangular lower pcb board, feed port and 4 antenna elements, 4 antenna elements are symmetrically arranged on the diagonal line of pcb board;Lower pcb board includes square substrate integrated wave guide resonance chamber and coupling slot, and the inner conductor of feed port is connect with the patch of lower pcb board upper surface, and outer conductor is connect with the patch of lower pcb board lower surface.The restructural magnetoelectricity dipole antenna of polarization of the invention has many advantages, such as that structure is simple, loss is low, can facilitate switching with wide, high gain, radiation efficiency height, between three kinds of polarized states, the restructural magnetoelectricity dipole antenna of the polarization is highly suitable for modern wireless communication systems, the especially application of 5G frequency range WiFi system.

Description

A kind of restructural magnetoelectricity dipole antenna of polarization

[technical field]

The present invention relates to microwave passive component more particularly to a kind of restructural magnetoelectricity dipole antennas of polarization.

[background technique]

With flourishing for wireless communication, requirement of the modern wireless communication systems to the bandwidth of antenna and directionality is increasingly It improves, existing Broadband Micro-strip Patch Antenna and traditional directed dipole antenna have been unable to meet requirement.Magnetoelectricity dipole day Line as new generation broadband directional aerial, with its with wide, high gain, radiation efficiency is high, compact-sized, manufacturing process is simple, Many advantages, such as at low cost, just by the extensive concern of industry from proposing certainly.Magnetoelectricity dipole is usually by orthogonally located Electric dipole and magnetic dipole are constituted, and two dipoles are co-located or separate a small distance and place.According to common sense, It is known that the directional diagram of electric dipole looks like 8 fonts in electric field plane, it is O font in H plane, and magnetic dipole The directional diagram of son looks like O font in electric field plane, is 8 fonts in H plane.Therefore, when two dipoles are put jointly When setting, and being motivated with equal energy equiphase, the antenna pattern obtained is identical heart-shaped in electric field plane and H plane Shape, and there is wider bandwidth, it is often more important that backward radiation is suppressed significantly.

In recent years, WiFi technology application is continuous universal, so that being applied to the antenna technology of 5G frequency range WiFi also increasingly It is concerned by people.However, as wireless communication spectrum becomes signal fadeout caused by more and more crowded, electric wave multipath transmisstion It is increasingly severe, it is only that the WiFi antenna for the single polarization mode for covering working frequency range (5.15-5.85GHz) will no longer be suitable for In modern wireless communication systems, the polarization that designing, there is anti-multipath fading can be realized channeling increase channel capacity simultaneously can Reconfigurable antenna can effectively ensure communication quality, to improve user experience.

In current published document, polarization reconfigurable antenna type mainly includes polarize restructural paster antenna, pole Change restructural slot antenna and the restructural monopole antenna of polarization.However, (1) polarizes, restructural paster antenna is although easy to accomplish And cost is relatively low, but its bandwidth of operation less than 10%, is unable to satisfy the requirement of broadband wireless communications with rapid changepl. never-ending changes and improvements;(2) pole Although changing restructural slot antenna with broader bandwidth of operation, lower gain will make its application value greatly limited;(3) pole Although changing restructural monopole antenna with wider bandwidth and omnidirectional radiation characteristic, its complicated structure will make entirely to communicate The structure of system is more complicated.Each side as described above planar defect will limit these polarization reconfigurable antennas in Modern wireless communication Application in system, the especially application in 5G WiFi system.

[summary of the invention]

The technical problem to be solved in the present invention is to provide a kind of structures simply, loss is low, the switching side between polarized state Just the restructural magnetoelectricity dipole antenna of polarization.

In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that, a kind of restructural magnetoelectricity dipole of polarization Antenna, including rectangular upper pcb board, rectangular lower pcb board, feed port and 4 antenna elements, 4 antenna element centers pair It is arranged on the diagonal line of pcb board with claiming;Antenna element includes DC feeder, small square patch, large square patch, triangle Patch, electric-controlled switch, DC wire, capacitor and square metal cylinder, small square patch are the metals of upper pcb board upper surface etching Foil, large square patch and triangle patch are the metal foils of upper pcb board following table facet etch;Small square patch is arranged in triangle sticker The surface of piece, the two are connected by metallization VIA;Triangle patch is arranged in the inside of large square patch, and the two passes through electricity Control switch connection;Capacitor is connected across between this antenna element triangle patch and adjacent antenna units triangle patch, small rectangular Patch is connect by DC feeder with DC wire;The upper end of square metal cylinder is connect with large square patch, lower end and lower PCB The metal patch of plate upper surface connects;Lower pcb board includes square substrate integrated wave guide resonance chamber and coupling slot, feed port it is interior Conductor is connect with the patch of lower pcb board upper surface, and outer conductor is connect with the patch of lower pcb board lower surface.

The above-described restructural magnetoelectricity dipole antenna of polarization, antenna element includes inductance, and small square patch passes through electricity Sense is connect with DC feeder.

The above-described restructural magnetoelectricity dipole antenna of polarization, triangle patch is isosceles right triangle, and isosceles are straight The angular bisector of angle triangular right-angle is overlapped with the diagonal line of upper pcb board, a diagonal line and the upper pcb board of large square patch Diagonal line is overlapped;The shape of large square patch is corner cut rectangle, and the corner cut position of large square patch is towards triangle patch.

The above-described restructural magnetoelectricity dipole antenna of polarization, large square patch includes round hole, square metal cylinder Including standing hole, round hole and vertical hole are coaxial;The lower end of square metal cylinder includes cross-drilled hole, cross-drilled hole and vertical Kong Xiangtong;Lower pcb board Quadrangle respectively includes a wire guide, and DC wire passes through pcb board from top to down, through the vertical hole of rectangular metal cartridge and cross Hole, the upper surface along lower pcb board is protruding, then passes through wire guide from top to down and connect with DC power supply.

The anode of the above-described restructural magnetoelectricity dipole antenna of polarization, DC wire and DC power supply connects, lower PCB The patch of plate lower surface and the cathode of DC power supply connect.

The above-described restructural magnetoelectricity dipole antenna of polarization, the electric-controlled switch and third antenna list of first antenna unit The electric-controlled switch of member is by one group of DC power control, the electric-controlled switch of the electric-controlled switch of the second antenna element and the 4th antenna element By another group of DC power control;First antenna unit and third antenna unit are arranged on a diagonal line of pcb board, the Two antenna elements and the 4th antenna element are arranged on another article of diagonal line of pcb board.

The above-described restructural magnetoelectricity dipole antenna of polarization, lower pcb board include 4 row's plated-through holes, 4 rows metallization Through-hole surrounds rectangular;Square substrate integrated wave guide resonance chamber includes the patch and the 4 row metal of lower pcb board upper and lower surfaces Change the square cubic region that through-hole surrounds;Coupling slot is rectangular channel, is etched on the patch of lower pcb board upper surface;Rectangle slot position Between first antenna unit, the 4th antenna element and the second antenna element, third antenna unit, the long axis of rectangular channel is in 4 rows The rectangular central axes arrangement that plated-through hole surrounds.

The above-described restructural magnetoelectricity dipole antenna of polarization, the length of rectangular channel are less than the length of every row's plated-through hole Degree, greater than the length of upper pcb board;The width of rectangular channel is less than the spacing between large square patch.

The above-described restructural magnetoelectricity dipole antenna of polarization, the electric-controlled switch are diode, the sun of diode Pole connects triangle patch, and cathode connects large square patch.

The above-described restructural magnetoelectricity dipole antenna of polarization is in when the electric-controlled switch of each antenna element is all connected Linear polarization state;The electric-controlled switch of two antenna elements on upper one three quadrant diagonal line of pcb board is all connected, and two four-quadrants are diagonal When the electric-controlled switch of two antenna elements on line all disconnects, it is in right-handed circular polarization state;Upper one three quadrant diagonal line of pcb board On two electric-controlled switch of antenna element all disconnect, the electric-controlled switch of two antenna elements on two four-quadrant diagonal lines all connects When logical, it is in left-hand circular polarization state.

The present invention have structure is simple, loss is low, with wide, high gain, radiation efficiency it is high, between three kinds of polarized states The advantages that switching can be facilitated, the restructural magnetoelectricity dipole antenna of the polarization are highly suitable for modern wireless communication systems, especially The application of 5G frequency range WiFi system.

[Detailed description of the invention]

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is that the embodiment of the present invention polarizes the perspective view of restructural magnetoelectricity dipole antenna.

Fig. 2 is that the embodiment of the present invention polarizes the top view of restructural magnetoelectricity dipole antenna.

Fig. 3 is AA' in Fig. 2 to cross-sectional view.

Fig. 4 is that the schematic diagram of first medium substrate upper and lower surfaces of the embodiment of the present invention is (b) wherein (a) is top view Bottom view.

Fig. 5 is second medium substrate upper and lower surfaces schematic diagram of the embodiment of the present invention, wherein (a) is top view, it is (b) to face upward View.

Fig. 6 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna embodiment structure size schematic diagram, In (a) be top view, be (b) AA' in Fig. 2 to cross-sectional view.

Fig. 7 is that the embodiment of the present invention polarizes radiating element group of the restructural magnetoelectricity dipole antenna under three kinds of polarized states At structural schematic diagram, wherein (a) is linear polarization schematic diagram, it is (b) right-handed circular polarization schematic diagram, is (c) left-hand circular polarization signal Figure.

Fig. 8 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna the online polarized state of embodiment under echo damage The emulation and measured result figure of consumption and gain.

Fig. 9 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna embodiment under circular polarization state echo damage The emulation and measured result figure of consumption and gain.

Figure 10 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna embodiment in circular polarization state lower axle ratio Emulation and measured result figure.

Figure 11 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna the online polarized state of embodiment emulation It wherein (a) is at 5.2GHz is (b) at 5.8GHz with actual measurement antenna pattern.

Figure 12 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna embodiment under right-handed circular polarization state Emulation and actual measurement antenna pattern wherein (a) is at 5.2GHz be (b) at 5.8GHz.

Figure 13 be the embodiment of the present invention polarize restructural magnetoelectricity dipole antenna embodiment under left-hand circular polarization state Emulation and actual measurement antenna pattern wherein (a) is at 5.2GHz be (b) at 5.8GHz.

[specific embodiment]

The restructural magnetoelectricity dipole antenna of polarization of the invention includes rectangular upper pcb board, rectangular lower pcb board, feed Port and 4 antenna elements, 4 antenna elements are symmetrically arranged on the diagonal line of pcb board.Antenna element includes straight Flow feeder line, small square patch, inductance, large square patch, triangle patch, electric-controlled switch, DC wire, capacitor and square metal Cylinder, small square patch are the metal foils of upper pcb board upper surface etching, and large square patch and triangle patch are under upper pcb board The metal foil of surface etching.Small square patch is arranged in the surface of triangle patch, and the two is connected by metallization VIA.Three Angular patch is arranged in the inside of large square patch, and the two is connected by electric-controlled switch.Capacitor is connected across this antenna element triangle Between shape patch and adjacent antenna units triangle patch, small square patch is connect by inductance with DC feeder.Square metal The upper end of cylinder is connect with large square patch, and lower end is connect with the metal patch of lower pcb board upper surface.Lower pcb board includes rectangular Substrate integration wave-guide resonant cavity and coupling slot, the inner conductor of feed port are connect with the patch of lower pcb board upper surface, outer conductor with The patch of lower pcb board lower surface connects.Electric-controlled switch is diode, and the anode of diode connects triangle patch, and cathode connects generous Shape patch.

Triangle patch is isosceles right triangle, pair of the angular bisector at isosceles right triangle right angle and upper pcb board Linea angulata is overlapped, and a diagonal line of large square patch is overlapped with the diagonal line of upper pcb board.The shape of large square patch is corner cut square Shape, the corner cut position of large square patch is towards triangle patch.

Large square patch includes round hole, and square metal cylinder includes vertical hole, and round hole and vertical hole are coaxial.Square metal column The lower end of body includes cross-drilled hole, cross-drilled hole and vertical Kong Xiangtong.The quadrangle of lower pcb board respectively includes a wire guide, DC wire from upper and Upper pcb board is passed through lowerly, and through the vertical hole of rectangular metal cartridge and cross-drilled hole, the upper surface along lower pcb board is protruding, then from upper And pass through wire guide lowerly and connect with the anode with DC power supply, the patch of lower pcb board lower surface and the cathode of DC power supply connect It connects.

The electric-controlled switch of the electric-controlled switch of first antenna unit and third antenna unit is by one group of DC power control, and second The electric-controlled switch of the electric-controlled switch of antenna element and the 4th antenna element is by another group of DC power control.First antenna unit and Third antenna unit is arranged on a diagonal line of pcb board, and the second antenna element and the 4th antenna element are arranged in PCB On another diagonal line of plate.

Lower pcb board includes 4 row's plated-through holes, and 4 row's plated-through holes surround rectangular.Square substrate integrated wave guide resonance chamber The square cubic region that patch and the 4 row plated-through hole including lower pcb board upper and lower surfaces surround.Coupling slot is square Shape slot is etched on the patch of lower pcb board upper surface.Rectangular channel is located at first antenna unit, the 4th antenna element and second day Between line unit, third antenna unit, the long axis of rectangular channel is arranged in the rectangular central axes that 4 row's plated-through holes surround.Square The length of shape slot is less than the length of every row's plated-through hole, greater than the length of upper pcb board.The width of rectangular channel is pasted less than large square Spacing between piece.

When the electric-controlled switch of each antenna element is all connected, it is in linear polarization state.On upper one three quadrant diagonal line of pcb board The electric-controlled switch of two antenna elements is all connected, and the electric-controlled switch of two antenna elements on two four-quadrant diagonal lines all disconnects When, it is in right-handed circular polarization state.Two electric-controlled switch of the antenna element on upper one three quadrant diagonal line of pcb board all disconnect, When the electric-controlled switch of two antenna elements on two four-quadrant diagonal lines is all connected, it is in left-hand circular polarization state.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the restructural magnetoelectricity dipole day of the polarization of the embodiment of the present invention Line, including first medium substrate 1, the first DC feeder 111, the second DC feeder 112, third DC feeder 113, the 4th direct current Feeder line 114, the first small square patch 121, the second small square patch 122, the small square patch 123 of third, the 4th small square patch 124, the first chip inductor 131, the second chip inductor 132, third chip inductor 133, the 4th chip inductor 134, first is rectangular Patch 141, the second square patch 142, third square patch 143, quad patch 144, the first triangle patch 151, Two triangle patch 152, third triangle patch 153, the 4th triangle patch 154, the first electric-controlled switch 161, second are automatically controlled Switch 162, third electric-controlled switch 163, the 4th electric-controlled switch 164, the first round hole 171, the second round hole 172, third are round Hole 173, the 4th round hole 174, first group of patch capacitor, 181, second groups of patch capacitors 182, third group patch capacitor 183, Four groups of patch capacitors 184, the first plated-through hole 191, the second plated-through hole 192, third plated-through hole 193, the 4th gold medal Categoryization through-hole 194, the first rectangular metal cartridge 21, the second rectangular metal cartridge 22, third square metal cartridge 23, square Metal cartridge 24, second medium substrate 3, square substrate integrated wave guide resonance chamber 31, rectangular channel 32, the first circular hole 331, second circle Hole 332, third circular hole 333, the 4th circular hole 334, the 5th circular hole 34, feed port 4, the first DC wire 51, the second direct current are led Line 52, third DC wire 53 and the 4th DC wire 54.

Wherein the first DC feeder 111, the second DC feeder 112, third DC feeder 113, the 4th DC feeder 114, First small square patch 121, the second small square patch 122, the small square patch 123 of third, the 4th small square patch 124, first Chip inductor 131, the second chip inductor 132, third chip inductor 133 and the 4th chip inductor 134 are located at first medium substrate 1 Upper surface.

First square patch 141, the second square patch 142, third square patch 143, quad patch 144, first Triangle patch 151, the second triangle patch 152, third triangle patch 153, the 4th triangle patch 154, first is automatically controlled Switch 161, the second electric-controlled switch 162, third electric-controlled switch 163, the 4th electric-controlled switch 164, first group of patch capacitor 181, 183, the 4th groups of two groups of patch capacitors 182, third group patch capacitor patch capacitors 184 are located at the lower surface of first medium substrate 1.

The upper and lower surfaces of second medium substrate 3 post the metal patch with second medium substrate same size, rectangular channel 32 are etched on the metal patch of 3 upper surface of second medium substrate.Square substrate integrated wave guide resonance chamber 31 is by second medium base The upper and lower surfaces metal patch of plate 3 and the square cubic region that surrounds of 4 row's plated-through holes through second medium substrate 3 Composition.First circular hole 331, the second circular hole 332, third circular hole 333, the 4th circular hole 334 pass through second medium substrate 3 and its Upper and lower surfaces metal patch, the 5th circular hole 34 are etched on the lower surface metal patch of second medium substrate 2, the first rectangular gold Belong to cylinder 21, the second rectangular metal cartridge 22, third square metal cartridge 23, square metal cartridge 24 and is located at second medium The upper surface of substrate 3, bottom are connect with 3 upper surface metal patch of second medium substrate, top respectively with the first rectangular patch Piece 141, the second square patch 142, third square patch 143, quad patch 144 connect, and support first medium substrate 1。

The inner conductor probe of feed port 4 passes perpendicularly through second medium substrate 3, and with 3 upper surface of second medium substrate Metal patch connection, the outer conductor of feed port 4 are connect with the metal patch of 3 lower surface of second medium substrate.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, embodiment first medium substrate 1 and second medium base Plate 3 is the substrate of printed circuit board, wherein first medium substrate 1 and 3 relative dielectric constant of second medium substrate are 2.33, thickness is respectively 3.75mm and 0.787mm, and loss angle tangent is 0.0009.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, embodiment the first triangle patch 151, the second triangle Shape patch 152, third triangle patch 153, the 4th triangle patch 154 are an equal amount of isosceles right triangle, and Around the center of first medium substrate 1 in symmetrically placed;First square patch 141,

Second square patch 142, third square patch 143, quad patch 144 are the rectangular patch of same size Piece, and respectively around the first triangle patch 151, the second triangle patch 152, third triangle patch 153, the 4th triangle Shape patch 154 is symmetrically placed;First round hole 171, the second round hole 172, third round hole 173, the 4th round hole 174 are The identical round hole of size, and respectively symmetrically it is etched in the first square patch 141, the second square patch 142, third square patch On piece 143, quad patch 144.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, embodiment the first triangle patch 151, the second triangle Shape patch 152, third triangle patch 153, the 4th triangle patch 154 are respectively via the first plated-through hole 191, the second gold medal Categoryization through-hole 192, third plated-through hole 193, the 4th plated-through hole 194 and the first small square patch 121, second are small rectangular The small square patch 123 of patch 122, third, the 4th small square patch 124 connect, and the first small square patch 121, second is small rectangular The small square patch 123 of patch 122, third, the 4th small square patch 124 are respectively via the first chip inductor 131, the second patch electricity Sense 132, third chip inductor 133, the 4th chip inductor 134 and the first DC feeder 111, the second DC feeder 112, third are straight Flow feeder line 113, the connection of the 4th DC feeder 114.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, the first electric-controlled switch of embodiment 161 are connected across first Between square patch 141 and the first triangle patch 151, the second electric-controlled switch 162 is connected across the second square patch 142 and first Between triangle patch 152, third electric-controlled switch 163 be connected across third square patch 143 and third triangle patch 153 it Between, the 4th electric-controlled switch 164 is connected across between quad patch 144 and the 4th triangle patch 154, wherein first is automatically controlled Switch 161, the second electric-controlled switch 162, third electric-controlled switch 163, the 4th electric-controlled switch 164 anode respectively with the first triangle Patch 151, the second triangle patch 152, third triangle patch 153, the connection of the 4th triangle patch 154, first automatically controlled opens Close the 161, second electric-controlled switch 162, third electric-controlled switch 163, the 4th electric-controlled switch 164 cathode respectively with the first square patch 141, the second square patch 142, third square patch 143, quad patch 144 connect.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, first group of patch capacitor, 181, second groups of patch capacitors 182, third group patch capacitor 183, the 4th group of patch capacitor 184 are made of the patch capacitor of two 100pF, and first group of electricity Hold 181 to be connected across between the first triangle patch 151 and the second triangle patch 152, second group of capacitor 182 is connected across the two or three Between angular patch 152 and third triangle patch 153, third group capacitor 183 is connected across third triangle patch 153 and the 4th Between triangle patch 154, the 4th group of capacitor 184 be connected across the 4th triangle patch 154 and the first triangle patch 151 it Between.

The embodiment of the present invention polarizes restructural magnetoelectricity dipole antenna, the first DC wire 51, the second DC wire 52, the Three DC wires 53, the 4th DC wire 54 respectively with the first DC feeder 111, the second DC feeder 112, third DC feeder 113, the 4th DC feeder 114 connects, and passes through first medium substrate 1, then be each passed through the first rectangular metal cartridge 21, second The on square metal cylinder 22, third square metal cartridge 23, the inside of square metal cartridge 24 and second medium substrate 3 The 331, second circular hole of one circular hole (wire guide) (wire guide) 332, the 333, the 4th circular hole (wire guide) of third circular hole (wire guide) 334, it is connect with the anode of two groups of DC power supplies, wherein the first electric-controlled switch 161 and third electric-controlled switch 163 are by one group of direct current Source control, the second electric-controlled switch 162 and the 4th electric-controlled switch 164 pass through two groups of DC power supplies by another group of DC power control Low and high level signal is provided to control the on-off of electric-controlled switch, when DC power supply provides high level signal (5V voltage), Electric-controlled switch conducting, when DC power supply provides low level signal (0V voltage), electric-controlled switch is disconnected.Second medium substrate 3 Lower surface metal patch connect via conducting wire with the cathode of two groups of DC power supplies, the main purpose done so is by DC wire It is placed on the lower section on floor as much as possible, reduces influence of the radiofrequency signal to DC wire of radiation, to avoid opening automatically controlled Close the influence of control voltage accurately exported.

The embodiment of the present invention polarizes restructural magnetoelectricity dipole antenna, the first chip inductor 131, the second chip inductor 132, Third chip inductor 133, the 4th chip inductor 134 inductance value be 25nH, be used to isolation radiofrequency signal and keep direct current Signal conduction, thus realize for the first electric-controlled switch 161, the second electric-controlled switch 162, third electric-controlled switch the 163, the 4th it is automatically controlled While switch 164 normally provides direct-current control voltage, the first DC feeder 111, the second DC feeder additionally introduced is avoided 112, third DC feeder 113, the 4th DC feeder 114 and the first DC wire 51, the second DC wire 52, third direct current are led The influence of line 53, the 4th DC wire 54 to antenna radiation performance.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, first group of patch capacitor, 181, second groups of patch capacitors 182, third group patch capacitor 183, the 4th group of patch capacitor 184 are to realize the first electric-controlled switch for isolated DC signal 161, the state independent control of the second electric-controlled switch 162, third electric-controlled switch 163, the 4th electric-controlled switch 164, and keep radio frequency Signal it is continuous.

The embodiment of the present invention polarizes restructural magnetoelectricity dipole antenna, the first electric-controlled switch 161, the second electric-controlled switch 162, Third electric-controlled switch 163, the 4th electric-controlled switch 164 are led to using the diode switch of the model BAR50-02L of company, Infineon Low and high level is crossed to control its on-off.

The embodiment of the present invention polarizes restructural magnetoelectricity dipole antenna by the access feed signal of feed port 4, motivates Square substrate integrated wave guide resonance chamber 31, then via the rectangle etched on 3 upper surface metal patch of second medium substrate Slot 32, coupling excitation plays antenna radiation unit, to realize the transmitting and reception of energy.

The restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention, mainly includes electric dipole and magnetic according to working principle Dipole two parts, wherein electric dipole be by the first square patch 141, the second square patch 142, third square patch 143, Quad patch 144, the first triangle patch 151, the second triangle patch 152, third triangle patch the 153, the 4th 3 Angular patch 154 forms, magnetic dipole be by the first square patch 141, the second square patch 142, third square patch 143, The gap composition of quad patch 144 between any two, controls the logical of two groups of diode electric-controlled switch by two groups of voltages respectively It is disconnected, change the structure of antenna radiation unit, to realize that the polarization of antenna is restructural.(1) when two groups of diode electric-controlled switch all When opening, antenna has only been motivated the magnetic dipole parallel with rectangular channel 32 (i.e. the first square patch 141 and the second square patch 142, the gap between third square patch 143 and quad patch 144) and electric dipole (i.e. the first square patch 141, the second square patch 142, third square patch 143, quad patch 144, the first triangle patch the 151, the 2nd 3 The radiating element that angular patch 152, third triangle patch 153, the 4th triangle patch 154 form), the spoke of two dipoles Penetrate that field phase is equal, antenna has the radiation characteristic of linear polarization at this time;(2) as two groups of diode electric-controlled switch one group of opening, one When group is closed, while antenna has been motivated the magnetic dipole and electric dipole parallel with rectangular channel 32, motivate and rectangle The parallel magnetic dipole of slot 32 (i.e. the first square patch 141 and quad patch 144, the second square patch 142 and third party Gap between shape patch 143), it is orthogonal to ultimately form two, and amplitude is identical, the radiation field that 90 ° of phase phase difference, antenna at this time Radiation characteristic with circular polarisation, the state that exchange changes two groups of diode electric-controlled switch can realize antenna in left-handed entelechy Change and switches between right-handed circular polarization state.Following table lists the restructural magnetoelectricity dipole antenna of polarization of the embodiment of the present invention can be real The working condition of existing three kinds of polarized states and its corresponding four diode switches.Aerial radiation list under three kinds of polarized states The composed structure of member is as shown in Figure 7.

The embodiment of the present invention is described in further detail below with reference to the embodiment of refinement.

As shown in fig. 6, by taking center operating frequency is in the restructural magnetoelectricity dipole antenna of polarization of 5.5GHz as an example, use First medium substrate 1 and 3 relative dielectric constant of second medium substrate are 2.33, and thickness is respectively 3.75mm and 0.787mm, Loss angle tangent is 0.0009.Each dimensional parameters of the restructural magnetoelectricity dipole antenna of the polarization are as follows: the first square patch 141, the second square patch 142, third square patch 143, quad patch 144 side length be L=11mm, and it is two-by-two Between gap width be S1=3mm, the first square patch 141 and the first triangle patch 151, the second square patch 142 With the second triangle patch 152, third square patch 143 and third triangle patch 153, quad patch 144 and the 4th Gap width between triangle patch 154 is S2=0.5mm, the first triangle patch 151, the second triangle patch 152, The side length for the square region that third triangle patch 153 and the 4th triangle patch 154 are constituted is P=5.5mm,

First rectangular metal cartridge 21, the second rectangular metal cartridge 22, third square metal cartridge 23 and square gold The bottom edge side length for belonging to cylinder 24 is W=7mm, is highly H=11mm, the length and width of second medium substrate 3 is G= 54mm, the length of rectangular channel 32 are Ls=27.5mm, width Ws=1.5mm, the side of square substrate integrated wave guide resonance chamber 31 A length of G2=34mm, the diameter for constituting the plated-through hole of square substrate integrated wave guide resonance chamber 31 is D=1mm, and adjacent Spacing between two plated-through holes is S=1.7mm, and the center spacing of feed port 4 and second medium substrate 3 is offset =6mm.

The restructural magnetoelectricity dipole antenna of polarization of the present embodiment is the business full-wave electromagnetic simulation software in Ansys company The design of HFSS modeling and simulating.

Fig. 8 and Fig. 9 is the restructural magnetoelectricity dipole antenna of polarization in the present embodiment under linear polarization and circular polarization state The emulation and measured result figure of return loss and gain.It is even to can be seen that the restructural magnetoelectricity of the polarization from the measured result in figure With the bandwidth of 27.2% (4.77-6.27GHz) under the online polarized state of pole sub-antenna, under left-handed and right-handed circular polarization state Bandwidth with 2.9% (5.07-6.32GHz), return loss is below -10dB in passband, under online polarized state, in passband Gain be 8.2 ± 0.4dBi, under left-handed and right-handed circular polarization state, the gain in passband is 8.2 ± 0.8dBi.

Figure 10 is the restructural magnetoelectricity dipole antenna of polarization in the present embodiment in the imitative of two kinds of circular polarization state lower axle ratios True and measured result figure.It can be seen that the restructural magnetoelectricity dipole antenna of the polarization in left and right rounding from the measured result in figure Under polarized state, while meeting return loss less than -10dB, axis is 16% (5.07-5.95GHz) than the bandwidth less than 3dB, complete All standing 5G frequency range WiFi bandwidth of operation.

Figure 11, Figure 12 and Figure 13 are the restructural magnetoelectricity dipole antenna of polarization in the present embodiment respectively in linear polarization, the right side The face xoz (left figure) and the face yoz (right figure) under three kinds of polarized states of hand circular polarization and left-hand circular polarization at 5.2GHz and 5.8GHz Emulation and actual measurement antenna pattern.It can be seen from the figure that the example polarizes, restructural magnetoelectricity dipole antenna is three kinds of poles Identical antenna pattern is all had under change state, and antenna all has the radiation of non-directional special under every kind of polarized state Property, cross polarization is below -13dB.

The restructural magnetoelectricity dipole antenna in conclusion the embodiment of the present invention polarizes, loss low, band simple with structure Wide, high gain, radiation efficiency are high, the advantages that can facilitating switching between three kinds of polarized states, and the restructural magnetoelectricity of the polarization is even Pole sub-antenna is highly suitable for modern wireless communication systems, the especially application of 5G frequency range WiFi system.

Claims (10)

1. a kind of restructural magnetoelectricity dipole antenna of polarization, which is characterized in that including rectangular upper pcb board, rectangular lower PCB Plate, feed port and 4 antenna elements, 4 antenna elements are symmetrically arranged on the diagonal line of pcb board;Antenna list Member includes DC feeder, small square patch, large square patch, triangle patch, electric-controlled switch, DC wire, capacitor and rectangular Metal cartridge, small square patch are the metal foils of upper pcb board upper surface etching, and large square patch and triangle patch are upper PCB The metal foil of plate following table facet etch;Small square patch is arranged in the surface of triangle patch, and the two is connected by metallization VIA It connects;Triangle patch is arranged in the inside of large square patch, and the two is connected by electric-controlled switch;Capacitor is connected across this antenna element Between triangle patch and adjacent antenna units triangle patch, small square patch is connect by DC feeder with DC wire; The upper end of square metal cylinder is connect with large square patch, and lower end is connect with the metal patch of lower pcb board upper surface;Lower pcb board Including square substrate integrated wave guide resonance chamber and coupling slot, square substrate integrated wave guide resonance chamber includes lower pcb board upper and lower surfaces Patch and the square cubic region that surrounds of 4 row's plated-through holes, coupling slot be etched on the patch of lower pcb board upper surface, The inner conductor of feed port is connect with the patch of lower pcb board upper surface, and outer conductor is connect with the patch of lower pcb board lower surface.
2. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that antenna element includes electricity Sense, small square patch are connect by inductance with DC feeder.
3. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that triangle patch is isosceles Right angled triangle, the angular bisector at isosceles right triangle right angle are overlapped with the diagonal line of upper pcb board, and one of large square patch Diagonal line is overlapped with the diagonal line of upper pcb board;The shape of large square patch is corner cut rectangle, the corner cut position court of large square patch To triangle patch.
4. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that large square patch includes circle Shape hole, square metal cylinder include vertical hole, and round hole and vertical hole are coaxial;The lower end of square metal cylinder includes cross-drilled hole, cross-drilled hole with Vertical Kong Xiangtong;The quadrangle of lower pcb board respectively includes a wire guide, and DC wire passes through pcb board from top to down, through rectangular gold Belong to vertical hole and the cross-drilled hole of cylinder, the upper surface along lower pcb board is protruding, then passes through wire guide and direct current from top to down Source connection.
5. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that DC wire and direct current The anode connection in source, the patch of lower pcb board lower surface and the cathode of DC power supply connect.
6. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that the electricity of first antenna unit The electric-controlled switch of control switch and third antenna unit is by one group of DC power control, the electric-controlled switch of the second antenna element and the 4th The electric-controlled switch of antenna element is by another group of DC power control;First antenna unit and third antenna unit are arranged in PCB On one diagonal line of plate, the second antenna element and the 4th antenna element are arranged on another article of diagonal line of pcb board.
7. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that lower pcb board includes 4 rows gold Categoryization through-hole, 4 row's plated-through holes surround rectangular;Square substrate integrated wave guide resonance chamber includes the patch of lower pcb board upper and lower surfaces The square cubic region that piece and the 4 row plated-through hole surround;Coupling slot is rectangular channel, and rectangular channel is located at first antenna list Between member, the 4th antenna element and the second antenna element, third antenna unit, the long axis of rectangular channel is enclosed in 4 row's plated-through holes At rectangular central axes arrangement.
8. the restructural magnetoelectricity dipole antenna of polarization according to claim 7, which is characterized in that the length of rectangular channel is less than The length of every row's plated-through hole, greater than the length of upper pcb board;Between the width of rectangular channel is less than between adjacent large square patch Away from.
9. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, which is characterized in that the electric-controlled switch is Diode, the anode of diode connect triangle patch, and cathode connects large square patch.
10. the restructural magnetoelectricity dipole antenna of polarization according to claim 1, it is characterised in that each antenna element it is automatically controlled When switch is all connected, it is in linear polarization state;The electric-controlled switch of two antenna elements on upper one three quadrant diagonal line of pcb board is all It connects, when the electric-controlled switch of two antenna elements on two four-quadrant diagonal lines all disconnects, is in right-handed circular polarization state;On Two electric-controlled switch of the antenna element on one three quadrant diagonal line of pcb board all disconnect, two days on two four-quadrant diagonal lines When the electric-controlled switch of line unit is all connected, it is in left-hand circular polarization state.
CN201610839811.XA 2016-09-21 2016-09-21 A kind of restructural magnetoelectricity dipole antenna of polarization CN106299664B (en)

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