CN206849996U - Waveguiding structure and antenna assembly - Google Patents

Waveguiding structure and antenna assembly Download PDF

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Publication number
CN206849996U
CN206849996U CN201720327487.3U CN201720327487U CN206849996U CN 206849996 U CN206849996 U CN 206849996U CN 201720327487 U CN201720327487 U CN 201720327487U CN 206849996 U CN206849996 U CN 206849996U
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China
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metamaterial
metamaterial structure
waveguiding
waveguiding structure
electromagnetic wave
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CN201720327487.3U
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Chinese (zh)
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不公告发明人
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Shenzhen Guangqi Hezhong Technology Co Ltd
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Shenzhen Super Data Link Technology Ltd
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Abstract

This application discloses waveguiding structure and antenna assembly.The waveguiding structure includes：First medium substrate, there is relative first surface and second surface and relative the first side wall and second sidewall；The first metal layer and second metal layer, respectively on the first surface and the second surface；And first metamaterial structure and the second metamaterial structure, respectively on the first side wall and the second sidewall, wherein, the reflection of electromagnetic wave phase of first metamaterial structure and second metamaterial structure at the operating frequencies is less than or equal to 90 degree.The waveguiding structure reduces coupling loss, so as to improve efficiency of transmission.

Description

Waveguiding structure and antenna assembly
Technical field
Radio-frequency technique is the utility model is related to, is particularly used to transmit the waveguiding structure of electromagnetic wave and comprising waveguiding structure Antenna assembly.
Background technology
Antenna assembly is used for the transmitting and reception of electromagnetic wave, is had a wide range of applications in civil and military field. In high-gain focusing anteena, feed is located at the center of parabola antenna, as primary radiator.When launching electromagnetic wave, feed To the reflecting surface radiated electromagnetic wave of parabola antenna so that electromagnetic wave is outwards launched via parabola antenna.Receiving electromagnetic wave When, parabola antenna collects electromagnetic wave from the external world, and via parabola antenna reflecting surface by electromagenetic wave radiation to feed.
Antenna assembly also includes the transceiver being connected with feed, and electric signal is transmitted between using feed line. The feed line can be coaxial cable or waveguide.For the radiofrequency signal of high frequency, due to collecting skin efficiency, passed using hollow waveguide The loss of defeated signal is less than coaxial cable, therefore waveguide is high to the efficiency of transmission of high frequency electrical signal and power capacity is big.
In antenna assembly, waveguiding structure acts not only as feed line, and can be used for forming antenna in itself.Example Such as, parallel-plate waveguide antenna uses parallel plate transmission electromagnetic wave and sheet metal as radiating element, continuous transverse minor matters (CTS) Antenna is using parallel-plate waveguide transmission electromagnetic wave, and opens laterally seam on parallel-plate and laterally sewing on additional minor matters with reality Now radiate.The feeding classification that antenna based on parallel-plate waveguide uses is TEM mould.
According to the characteristic of parallel-plate waveguide, in order to maintain the transmission of quasi- TEM ripples in parallel-plate waveguide, duct width obtains far Much larger than the height of waveguide so that the change of fringing field is consistent with the direction that width extends.The width requirement causes the chi of waveguide Very little increase, therefore it is unfavorable for the miniaturization of antenna assembly, installed in use and also result in inconvenience.
In existing technology, mostly using side wall open circuit, quarter-wave short bar or quarter-wave Choke groove meet the requirement of fringing field, to reduce the width of parallel-plate waveguide.However, the electricity in parallel-plate waveguide side wall Magnetic wave reflected phase is still 180 degree, produces interference to the electromagnetic field transmitted in parallel-plate waveguide, it is difficult to maintain in adjacent edges The transmission of TEM ripples.
Utility model content
In view of a little, the purpose of this utility model is to provide a kind of waveguiding structure and its antenna assembly, wherein using high resistant Metamaterial structure realizes the in-phase stacking of transmission electromagnetic wave and reflection electromagnetic wave, the transmission of the quasi- TEM ripples of realization device, is passed with improving Defeated efficiency.
According to one side of the present utility model, there is provided a kind of waveguiding structure, it is characterised in that including：First medium substrate, With relative first surface and second surface and relative the first side wall and second sidewall；The first metal layer and the second gold medal Belong to layer, respectively on the first surface and the second surface；And first metamaterial structure and the second metamaterial structure, Respectively on the first side wall and the second sidewall, wherein, first metamaterial structure and second Meta Materials The reflection of electromagnetic wave phase of structure at the operating frequencies is less than or equal to 90 degree.
Preferably, the reflection of electromagnetic wave of first metamaterial structure and second metamaterial structure at the operating frequencies Phase is -10 degree to 10 degree.
Preferably, the electromagnetic wave of first metamaterial structure and second metamaterial structure at the operating frequencies Reflected phase is 0 degree.
Preferably, first metamaterial structure and second metamaterial structure include respectively：Second medium substrate, tool There are relative the 3rd surface and the 4th surface；Reflecting plate, on the 3rd surface；Multiple pasters, positioned at the 4th table It is arranged in rows and columns and be spaced apart on face, so as to form patch array；And multiple conductive poles, through the second medium base Plate, the multiple paster is connected to the reflecting plate respectively, wherein, the multiple paster forms first metamaterial structure With the high impedance surface of second metamaterial structure, for reflection electromagnetic wave.
Preferably, the first surface of the high impedance surface of first metamaterial structure and the first medium substrate abuts, The second surface of the high impedance surface of second metamaterial structure and the first medium substrate abuts.
Preferably, the multiple conductive pole also extends through at least one in the multiple paster and the reflecting plate.
Preferably, according to the working frequency of the waveguiding structure set the shape of the multiple paster, size and/or Away from so as to obtain predetermined reflection of electromagnetic wave phase.
Preferably, the multiple paster is shaped as quincunx, including the centre slice being wholely set and four limbs.
Preferably, in each paster, four limbs are divided into two groups of respective two panels, and first group of limb is relative to One axle forms axial symmetry pattern, and second group of limb forms axial symmetry pattern relative to the second axle, and first axle and the second axle hang down each other Directly.
Preferably, the centre slice is rectangle, and the limb is semicircle.
Preferably, first metamaterial structure is attached on the first side wall of the first medium substrate using bonding agent, Second metamaterial structure is attached in the second sidewall of the first medium substrate using bonding agent.
According to another aspect of the present utility model, there is provided a kind of antenna assembly, it is characterised in that including：Above-mentioned waveguide Structure, the waveguiding structure are used to transmit electromagnetic wave；And radiating element, it is connected with the waveguiding structure, for radiation electric Magnetic wave.
Preferably, the radiating element is at least a portion of the first metal layer in the waveguiding structure.
Preferably, the first metal layer in the waveguiding structure is opened laterally seam and made laterally sewing on additional minor matters For the radiating element.
According to the waveguiding structure and antenna assembly of the utility model embodiment, the high impedance surface reflection electromagnetism of metamaterial structure The phase of ripple is less than 90 degree, so as to form approximate closing magnetic wall.The metamaterial structure can reduce side wall reflection to flat Disturbed caused by the electromagnetic field transmitted in plate waveguide, so as to both reduce the size of waveguiding structure, and can improves efficiency of transmission.
In a preferred embodiment, if designing the paster shape in metamaterial structure according to the working frequency of parallel-plate waveguide Shape, size and/or spacing, then the reflected phase substantially 0 of electromagnetic wave at the operating frequencies can be realized, so as to maintain quasi- TEM The transmission of ripple.
Brief description of the drawings
By the description to the utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh , feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the decomposition diagram of the metamaterial structure according to the utility model embodiment.
Fig. 2 shows the perspective view of the waveguiding structure according to the utility model embodiment.
Fig. 3 shows the S11 reflected phase simulation architectures according to the metamaterial structure of the utility model embodiment.
Embodiment
Various embodiments of the present utility model are more fully described hereinafter with reference to accompanying drawing.In various figures, identical Element is represented using same or similar reference.For the sake of clarity, the various pieces in accompanying drawing are not drawn to paint System.
Fig. 1 shows the decomposition diagram of the metamaterial structure according to the utility model embodiment.The metamaterial structure 110 is Laminated construction.For the ease of observation in figure, the conductive pole 115 in metamaterial structure 110 is divided along the direction shown in arrow From showing, the position in the waveguiding structure of reality is as described below.
As shown in figure 1, metamaterial structure 110 includes medium substrate 111, is covered in the anti-of the first surface of medium substrate 111 Penetrate plate 112, be covered in multiple pasters 113 of the second surface of medium substrate 111, the multiple through holes formed in medium substrate 111 114 and the conductive pole 115 of the multiple through hole 114 of filling.The first surface and second surface of metamaterial structure 110 are each other Relatively.
Medium substrate 111 can be made up of material of the dielectric constant more than 1, such as polytetrafluoroethylene (PTFE), epoxy resin, FR4 Material etc..It is excellent because dielectric constant is higher, loss angle tangent is smaller material is more beneficial for EMR electromagnetic resonance and reduces resonant frequency Select ceramic material, such as aluminum oxide or microwave-medium.Reflecting plate 112 and paster 113 are made up of conductive material, such as The metal material of gold, silver, copper etc.In an example, metamaterial structure 110 can use double-sided printed-circuit board (PCT) Formed, wherein forming reflecting plate 112 using the metal level on a surface, pasted using the metal layer patterning formation on another surface Piece 113.
Using etching or drilling, multiple through holes 114, the both ends open of the multiple through hole 114 are formed in the dielectric substrate Be respectively exposed on the apparent surface of medium substrate 111.The multiple through hole 114 is filled using the conductor material of copper etc, So as to form multiple conductive poles 115.In the embodiment shown in fig. 1, conductive pole 115 from a side surface of medium substrate 111 to Up to another side surface, so as to pass through medium substrate 111.In alternate embodiments, conductive pole 115 is from the surface of reflecting surface 112 On the surface of paster 113 is extended to via medium substrate, so as to pass through medium substrate 111, reflecting surface 112 and the three of paster 113.
Being shaped as paster 113 is quincunx, including centre slice 113-1 and four limb 113-2, and the two formation is integrated. In each paster 113, four limb 113-2 are divided into two groups of respective two panels, and first group of limb forms axle relative to first axle Symmetrical pattern, second group of limb form axial symmetry pattern relative to the second axle, and first axle and the second axle are perpendicular to one another.Preferable In embodiment, the centre slice 113-1 is rectangle, and the limb 113-2 is semicircle.Multiple 113 shapes arranged in rows and columns of paster Into patch array.In patch array, each array element includes a paster 113, and adjacent patch 113 is spaced a predetermined distance from. Each paster 113 is connected to reflecting plate 112 via corresponding conductive pole 115.In the metamaterial structure 110, multiple structures of paster 113 Into high impedance surface.
In this embodiment, the patch size and spacing determined in patch array is calculated according to simulation so that Meta Materials knot The phase of the high impedance surface reflection electromagnetic wave of structure 110 is 0, so as to form closing magnetic wall.The metamaterial structure 110 can realize biography The in-phase stacking of transmission of electricity magnetic wave and reflection electromagnetic wave.
Fig. 2 shows the perspective view of the waveguiding structure according to the utility model embodiment.The waveguiding structure 100 is parallel Lamb wave Lead, including medium substrate 121, the metal level 122 and 123 on the apparent surface of medium substrate and positioned at medium substrate Metamaterial structure 110 in 121 opposing sidewalls.The metal level 122 and 123 and metamaterial structure 110 limit electricity jointly The cavity of magnetic wave transmission.
Medium substrate 121 can be made up of any dielectric constant more than 1 material, for example, polytetrafluoroethylene (PTFE), epoxy resin, FR4 materials etc..Because dielectric constant is higher, loss angle tangent is smaller material is more beneficial for EMR electromagnetic resonance and reduces resonance frequency Rate, preferably ceramic material, such as aluminum oxide or microwave-medium.Metal level 122 and 123 is made up of conductive material, such as The metal material of gold, silver, copper etc.In an example, double-sided printed-circuit board (PCT) can be used to form parallel-plate waveguide Agent structure, i.e., using double-sided printed-circuit board two metal levels formed parallel-plate waveguide two metal levels.
The laminated construction of metamaterial structure 110 is as shown in figure 1, will not be described in detail herein.The agent structure of parallel-plate waveguide 100 Including medium substrate 121 and metal level 122 and 123.For example, two metamaterial boards 110 are attached to by medium using bonding agent In the side wall of substrate 121.The patch array of metamaterial board 110 and the adjacent sidewalls of medium substrate 121.
In this embodiment, the side wall of parallel-plate waveguide is limited using metamaterial structure so that the metal of parallel-plate waveguide Layer limits the cavity of Electromagnetic Wave Propagation with metamaterial structure jointly.Determined as described above, being calculated according to simulation in patch array Patch size and spacing so that the phase of the high impedance surface reflection electromagnetic wave of metamaterial structure 110 is 0, so as to form closing magnetic Wall.After the electromagnetic wave transmitted in parallel-plate waveguide 100 is via the high impedance surface reflection of superstructure structure 110, electromagnetism is reflected Ripple and transmission electromagnetic wave in-phase stacking, so as to avoid anti-phase abatement of the electromagnetic field in side wall, realize quasi- TEM ripples transmission.The ripple Guide structure can reduce width dimensions and improve electromagnetic transmission efficiency.
Further, the utility model can also provide the antenna based on parallel-plate waveguide.The antenna is included such as Fig. 2 institutes The parallel-plate waveguide and radiating element stated.In one embodiment, electromagnetic wave is transmitted using parallel-plate waveguide, parallel-plate waveguide Metal level is as radiating element.In another embodiment, electromagnetic wave is transmitted using parallel-plate waveguide, and opened on parallel-plate Laterally stitch and laterally sewing on additional minor matters as radiating element.Due to introducing metamaterial structure in waveguiding structure as side Wall, therefore the antenna can reduce size and improve antenna radiation efficiency.
Fig. 3 shows the S11 reflected phase simulation architectures according to the metamaterial structure of the utility model embodiment.Such as Fig. 3 institutes Show, in 10GHz to 20GHz wave-length coverage, the reflected phase of metamaterial structure 110 is changed into -110 degree from+110 degree. Under 14.4GHz working frequency, the reflected phase of electromagnetic wave is 0.With the feelings that existing reflection of electromagnetic wave phase in the art is 180 degree Shape is compared, and metamaterial structure can reduce side wall reflection to interference caused by the electromagnetic field that is transmitted in parallel-plate waveguide.If root According to patch shape, size and/or the spacing in the working frequency design metamaterial structure of parallel-plate waveguide, then can realize in work The reflected phase of electromagnetic wave substantially 0 under working frequency, for example, -10 degree to 10 degree, so as to maintain the transmission of quasi- TEM ripples.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that Other identical element also be present in process, method, article or equipment including the key element.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, And the restriction not to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And thus Among the obvious changes or variations amplified out is still in the scope of protection of the utility model.

Claims (13)

  1. A kind of 1. waveguiding structure, it is characterised in that including：
    First medium substrate, there is relative first surface and second surface and relative the first side wall and second sidewall；
    The first metal layer and second metal layer, respectively on the first surface and the second surface；And
    First metamaterial structure and the second metamaterial structure, respectively on the first side wall and the second sidewall,
    Wherein, the reflection of electromagnetic wave phase of first metamaterial structure and second metamaterial structure at the operating frequencies is small In equal to 90 degree.
  2. 2. waveguiding structure according to claim 1, it is characterised in that first metamaterial structure and described the second surpass material Expect that the reflection of electromagnetic wave phase of structure at the operating frequencies is spent to 10 degree for -10.
  3. 3. waveguiding structure according to claim 2, it is characterised in that first metamaterial structure and described the second surpass material It is 0 to expect the reflection of electromagnetic wave phase of structure at the operating frequencies.
  4. 4. waveguiding structure according to claim 1, it is characterised in that first metamaterial structure and described the second surpass material Material structure includes respectively：
    Second medium substrate, there is relative the 3rd surface and the 4th surface；
    Reflecting plate, on the 3rd surface；
    Multiple pasters, it is arranged in rows and columns and be spaced apart on the 4th surface, so as to form patch array；And
    Multiple conductive poles, through the second medium substrate, the multiple paster is connected to the reflecting plate respectively,
    Wherein, the multiple paster forms the high impedance surface of first metamaterial structure and second metamaterial structure, uses In reflection electromagnetic wave.
  5. 5. waveguiding structure according to claim 2, it is characterised in that the high impedance surface of first metamaterial structure and institute State the first surface adjoining of first medium substrate, the high impedance surface of second metamaterial structure and the first medium substrate Second surface abuts.
  6. 6. waveguiding structure according to claim 4, it is characterised in that the multiple conductive pole also extends through the multiple patch It is at least one in piece and the reflecting plate.
  7. 7. waveguiding structure according to claim 6, it is characterised in that being shaped as the multiple paster is quincunx, including The centre slice being wholely set and four limbs.
  8. 8. waveguiding structure according to claim 7, it is characterised in that in each paster, four limbs are divided into respectively From two groups of two panels, first group of limb forms axial symmetry pattern relative to first axle, and second group of limb is formed relative to the second axle Axial symmetry pattern, first axle and the second axle are perpendicular to one another.
  9. 9. waveguiding structure according to claim 8, it is characterised in that the centre slice is rectangle, and the limb is semicircle Shape.
  10. 10. waveguiding structure according to claim 3, it is characterised in that first metamaterial structure is pasted using bonding agent On the first side wall of the first medium substrate, second metamaterial structure is attached to the first medium base using bonding agent In the second sidewall of plate.
  11. A kind of 11. antenna assembly, it is characterised in that including：
    Waveguiding structure according to any one of claim 1 to 10, the waveguiding structure are used to transmit electromagnetic wave；And
    Radiating element, it is connected with the waveguiding structure, for radiated electromagnetic wave.
  12. 12. antenna assembly according to claim 11, it is characterised in that the radiating element is in the waveguiding structure At least a portion of the first metal layer.
  13. 13. antenna assembly according to claim 11, it is characterised in that the first metal layer in the waveguiding structure Open laterally seam and laterally sew on additional minor matters as the radiating element.
CN201720327487.3U 2017-03-30 2017-03-30 Waveguiding structure and antenna assembly Expired - Fee Related CN206849996U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720327487.3U CN206849996U (en) 2017-03-30 2017-03-30 Waveguiding structure and antenna assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720327487.3U CN206849996U (en) 2017-03-30 2017-03-30 Waveguiding structure and antenna assembly

Publications (1)

Publication Number Publication Date
CN206849996U true CN206849996U (en) 2018-01-05

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN206849996U (en)

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Effective date of registration: 20191011

Address after: 518057 2nd Floor, No. 9 Software Building, Zhongxin Road, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province

Patentee after: Shenzhen Guangqi Hezhong Technology Co., Ltd.

Address before: Bantian street Shenzhen city Guangdong province 518000 Jihua Road, the new world Huasai Industrial Area No. 2, building 101 (two floor) 201

Patentee before: SHENZHEN CHAOJI DATA CHAIN TECHNOLOGY CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180105

Termination date: 20210330