CN102130381B - Cylindrical lens antenna with partial mediums symmetrically filled - Google Patents
Cylindrical lens antenna with partial mediums symmetrically filled Download PDFInfo
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- CN102130381B CN102130381B CN2011100264078A CN201110026407A CN102130381B CN 102130381 B CN102130381 B CN 102130381B CN 2011100264078 A CN2011100264078 A CN 2011100264078A CN 201110026407 A CN201110026407 A CN 201110026407A CN 102130381 B CN102130381 B CN 102130381B
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Abstract
The invention discloses a cylindrical lens antenna with partial mediums symmetrically filled, comprising a metal-disc-shaped parallel plate waveguide, two mediums, a feed source antenna and an arc-shaped metal supporting plate, wherein the metal-disc-shaped parallel plate waveguide consists of an upper metal disc and a lower metal disc; one surfaces of the two mediums are arc-shaped surfaces; the two arc-shaped surfaces of the two mediums are intersected at one point; the other surfaces of the two mediums are respectively tightly attached with the upper metal disc and the lower metal disc of the metal-disc-shaped parallel plate waveguide; a cavity body and the mediums between the upper metal disc and the lower metal disc of the metal-disc-shaped parallel plate waveguide jointly form the cylindrical lens antenna with partial mediums symmetrically filled; the feed source antenna is arranged in the middle of the edge of the metal-disc-shaped parallel plate waveguide; arc-shaped supporting plates are arranged at the edges of the two metal discs of the metal-disc-shaped parallel plate waveguide; and the feed source antenna is embedded in an arc-shaped groove between the arc-shaped metal supporting plates. The feed source antenna is a horizontally polarized gradient groove antenna and an array thereof or a vertically polarized wedge-shaped medium bar antenna and an array thereof.
Description
Technical field
The present invention relates to antenna, relate in particular to the symmetrical packed column lens antenna of a kind of part medium.
Background technology
Dielectric lens antenna is widely used in the fields such as satellite communication, radar detection and electronic countermeasures.The di-lens technology has comprised thin lens, globe lens and post lens antenna etc., the characteristics of these lens antenna maximums be simple in structure, sweep limits is wide, can realize low-loss wideband operation.Calendar year 2001 is by the even globe lens antenna of the common development of University of Toronto and University of Michigan, realizes at 77GHz that coverage is wide for the first time and reaches 180
oMulti-beam scanning.Horizontal plane half circular array that this spherical lens antenna is comprised of 33 gradual change slot antennas carries out feed, and the 3dB beamwidth that each unit produces is 5.5
o, can cover 33 * 5.5=181.5 like this
oThe horizontal sweep scope.This feed array can be printed on same planar medium substrate easily, and be positioned on the equatorial plane of spherical lens, due to spherical lens from symmetry, the scanning beam that each feed element produces is almost consistent, the non-constant width of scanning angle that this makes spherical lens, can reach 180 degree scannings easily.Because there are some practical difficulties in the globe lens antenna at aspects such as processing and fabricating, system are fixing, at this moment can adopt more simple cylindrical lens antenna to realize that multi-beam scans.The directional diagram that the cylindrical lens antenna produces is fan-shaped beam, and it can realize narrow beam scanning in horizontal plane, produces wider wave beam in vertical plane.The dragon primary (Luneberg) lens by R.K.Luneberg in 1944 propositions, once the strong repercussion that proposes to have caused academia.After this lens antenna based on dragon uncle lens is suggested in succession, these antenna function admirable, and aperture efficiency can be done very highly.Due to the ball symmetry characteristic of Luneberg lens antenna, can be applicable to the fields such as space communication, Satellite Tracking simultaneously.Application number is 200710140739.2, and name is called a kind of patent of radio wave lens antenna apparatus, discloses a kind of lens antenna, and this antenna is comprised of the antenna element that is located at lens focus section of hemisphere medium dragon uncle's lens and reflecting plate and supporter support.Application number is 200580009846.0, and name is called the patent of Luneberg lens antenna device, discloses a kind of lens antenna, and another day, line comprised, hemisphere dragon uncle lens, and antenna is assembly fixture fixedly, radio wave reflector and other fixtures.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of part medium symmetrical packed column lens antenna.
The symmetrical packed column lens antenna of a kind of part medium comprises round metal dish type parallel-plate waveguide, two media, horizontal polarization gradual change slot antenna, curved metal supporting bracket, round metal dish type parallel-plate waveguide consists of upper and lower two rosettes, a surface of two media is arcwall face, two arcwall faces of two media intersect at a point, another surface of two media is close to two rosettes up and down of round metal dish type parallel-plate waveguide respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide and the symmetrical packed column lens of the common part medium of medium, in the middle of the edge of round metal dish type parallel-plate waveguide, place is provided with horizontal polarization gradual change slot antenna, horizontal polarization gradual change slot antenna comprises dielectric substrate and sheet metal, dielectric substrate is provided with the sheet metal that is horn-like opening, two rosette edges of round metal dish type parallel-plate waveguide are provided with the curved metal supporting bracket, the curved metal supporting bracket comprises the curved metal piece, deep-slotted chip breaker and screw hole, be provided with deep-slotted chip breaker and screw hole on the curved metal piece, horizontal polarization gradual change slot antenna is embedded in the deep-slotted chip breaker in the middle of the curved metal supporting bracket.
The symmetrical packed column lens antenna of another kind of part medium comprises round metal dish type parallel-plate waveguide, two media, curved metal supporting bracket, perpendicular polarization wedge-shaped medium staff aerial, round metal dish type parallel-plate waveguide consists of upper and lower two rosettes, a surface of two media is arcwall face, two arcwall faces of two media intersect at a point, another surface of two media is close to two rosettes up and down of round metal dish type parallel-plate waveguide respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide and the symmetrical packed column lens of the common part medium of medium, in the middle of the edge of round metal dish type parallel-plate waveguide, place is provided with perpendicular polarization wedge-shaped medium staff aerial, perpendicular polarization wedge-shaped medium staff aerial comprises dielectric substrate, microstrip line, the wedge-shaped medium rod, dielectric substrate is provided with microstrip line, the wedge-shaped medium rod, microstrip line is connected with the wedge-shaped medium rod, two rosette edges of round metal dish type parallel-plate waveguide are provided with the curved metal supporting bracket, the curved metal supporting bracket comprises the curved metal piece, deep-slotted chip breaker and screw hole, be provided with deep-slotted chip breaker and screw hole on the curved metal piece, perpendicular polarization wedge-shaped medium staff aerial is embedded in the deep-slotted chip breaker in the middle of the curved metal supporting bracket.
The symmetrical packed column lens antenna of another kind of part medium comprises round metal dish type parallel-plate waveguide, two media, curved metal supporting bracket, horizontal polarization gradual change slot antenna array, round metal dish type parallel-plate waveguide consists of upper and lower two rosettes, a surface of two media is arcwall face, two arcwall faces of two media intersect at a point, another surface of two media is close to two rosettes up and down of round metal dish type parallel-plate waveguide respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide and the symmetrical packed column lens of the common part medium of medium, in the middle of the edge of round metal dish type parallel-plate waveguide, place is provided with horizontal polarization gradual change slot antenna array, horizontal polarization gradual change slot antenna array consists of a plurality of horizontal polarization gradual change slot antennas that are arranged in arc, horizontal polarization gradual change slot antenna comprises dielectric substrate and sheet metal, dielectric substrate is provided with the sheet metal that is horn-like opening, two rosette edges of round metal dish type parallel-plate waveguide are provided with the curved metal supporting bracket, the curved metal supporting bracket comprises the curved metal piece, deep-slotted chip breaker and screw hole, be provided with deep-slotted chip breaker and screw hole on the curved metal piece, horizontal polarization gradual change slot antenna array is embedded in the deep-slotted chip breaker in the middle of the curved metal supporting bracket.
The symmetrical packed column lens antenna of another kind of part medium comprises round metal dish type parallel-plate waveguide, two media, curved metal supporting bracket, perpendicular polarization wedge-shaped medium staff aerial array, round metal dish type parallel-plate waveguide consists of upper and lower two rosettes, a surface of two media is arcwall face, two arcwall faces of two media intersect at a point, another surface of two media is close to two rosettes up and down of round metal dish type parallel-plate waveguide respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide and the symmetrical packed column lens of the common part medium of medium, in the middle of the edge of round metal dish type parallel-plate waveguide, place is provided with perpendicular polarization wedge-shaped medium staff aerial array, perpendicular polarization wedge-shaped medium staff aerial array consists of a plurality of perpendicular polarization wedge-shaped medium staff aerials that are arranged in arc, perpendicular polarization wedge-shaped medium staff aerial comprises dielectric substrate, microstrip line, the wedge-shaped medium rod, dielectric substrate is provided with microstrip line, the wedge-shaped medium rod, microstrip line is connected with the wedge-shaped medium rod, two rosette edges of round metal dish type parallel-plate waveguide are provided with the curved metal supporting bracket, the curved metal supporting bracket comprises the curved metal piece, deep-slotted chip breaker and screw hole, be provided with deep-slotted chip breaker and screw hole on the curved metal piece, perpendicular polarization wedge-shaped medium staff aerial array is embedded in the deep-slotted chip breaker in the middle of the curved metal supporting bracket.
By the symmetrical packed column lens antenna array of the symmetrical packed column lens antenna of a plurality of part media stacked on top part medium.
Cavity between two rosettes up and down of described round metal dish type parallel-plate waveguide and the symmetrical packed column lens of the common part medium of medium.The variations in refractive index of the symmetrical packed column lens of described part medium meets dragon uncle law
, wherein
RFor the radius of the symmetrical packed column lens of part medium,
rFor any point on the symmetrical packed column lens of part medium arrives the distance in the center of circle,
.The material of described medium is: polystyrene
, the material of dielectric substrate is: RT/Duroid 5880.
Compared with prior art, the beneficial effect had is: aperture efficiency is high in the present invention, and secondary lobe and back lobe are lower, directivity is better, and wave beam is narrow, compact conformation, antenna radiation efficiency is high, and especially, for the occasion of large scale, high-gain, the raising of antenna radiation efficiency is highly significant especially.Secondly, requirement on machining accuracy of the present invention is low, realizes that simply low cost, can be extended to the millimeter wave high-end applications easily, and the decline that can not bring performance index.Because the lens component of this antenna only needs the cooperation of Single Medium material and metal parallel plate waveguide, the relative index of refraction that just can realize lens changes by dragon uncle law, under the prerequisite that guarantees the characteristics such as high directivity and high calibre efficiency, overcome that traditional Luneberg lens antenna cost is high, the shortcomings such as Heavy Weight and manufacture difficulty.Simultaneously, due to the intrinsic wide angle scan characteristic of cylindrical lens antenna itself, can be applied to automobile collision preventing, the fields such as airport detection.
The accompanying drawing explanation
Fig. 1 is the symmetrical packed column lens antenna of part medium I type structural representation;
Fig. 2 is the elevation cross-sectional view of Fig. 1;
Fig. 3 is horizontal polarization gradual change slot antenna structural representation;
Fig. 4 is curved metal supporting plate structure schematic diagram;
Fig. 5 is the symmetrical packed column lens antenna of part medium II type structural representation;
Fig. 6 is the elevation cross-sectional view of Fig. 5;
Fig. 7 is perpendicular polarization wedge-shaped medium staff aerial structural representation;
Fig. 8 is the symmetrical packed column lens antenna of part medium III type structural representation;
Fig. 9 is the vertical view of horizontal polarization gradual change slot antenna array;
Figure 10 is the symmetrical packed column lens antenna of part medium IV type structural representation;
Figure 11 is the vertical view of perpendicular polarization wedge-shaped medium staff aerial array;
Figure 12 is the symmetrical packed column lens antenna of part medium V type structural representation;
Figure 13 is the elevation cross-sectional view of Figure 12;
Figure 14 is the symmetrical packed column lens antenna of part medium VI type structural representation;
Figure 15 is the elevation cross-sectional view of Figure 14.
Embodiment
In the present invention, on same operating frequency, in the certain situation of parallel-plate waveguide height, different dielectric thicknesses will cause different propagation wave-numbers, we control the relative index of refraction of lens by choosing different dielectric thicknesses, make it meet dragon uncle's law and distribute, the lens antenna of various uses that can the implementation structure compactness.In order to reach optimum antenna aperture efficiency, feed antenna should be placed on the focal position of post lens simultaneously.The directional diagram of the symmetrical packed column lens antenna of this part medium is similar with traditional post lens antenna, at horizontal plane, can realize narrow beam, at pitching face, is very wide wave beam.Simultaneously, because this antenna of the symmetry of structure can scan for generation of multi-beam, sweep limits is about ± and 75
o, its feed antennas can be integrated on the focal plane of lens very simply.In addition, the symmetrical packed column lens antenna of a plurality of part media stacked on top, the signal phase that every one deck is corresponding different, form aerial array, because adjacent lens antenna separates by rosette, therefore can not be affected each other, this aerial array can be realized phase-array scanning at pitching face, sweep limits is about ± and 40
o.
As shown in Figure 1, the symmetrical packed column lens antenna of part medium I type comprises round metal dish type parallel-plate waveguide 1, two media 2, horizontal polarization gradual change slot antenna 3, curved metal supporting bracket 4, round metal dish type parallel-plate waveguide 1 consists of upper and lower two rosettes, a surface of two media 2 is arcwall face, two arcwall faces of two media 2 intersect at a point, another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide 1 and the symmetrical packed column lens of the common part medium of medium 2, in the middle of the edge of round metal dish type parallel-plate waveguide 1, place is provided with horizontal polarization gradual change slot antenna 3, horizontal polarization gradual change slot antenna 3 comprises dielectric substrate 31 and sheet metal 32, dielectric substrate 31 is provided with the sheet metal 32 that is horn-like opening, the phase center of horizontal polarization gradual change slot antenna 3 overlaps with the focus of the symmetrical packed column lens of part medium, two rosette edges of round metal dish type parallel-plate waveguide 1 are provided with curved metal supporting bracket 4, curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, be provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, horizontal polarization gradual change slot antenna 3 is embedded in the deep-slotted chip breaker 42 in the middle of curved metal supporting bracket 4, between curved metal supporting bracket 4 and two rosettes, with screw, be connected, play a supportive role.
As shown in Figure 2, a surface of described two media 2 is arcwall face, and two arcwall faces of two media 2 intersect at a point, and another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively.
As shown in Figure 3, described horizontal polarization gradual change slot antenna 3 comprises dielectric substrate 31 and sheet metal 32, and dielectric substrate 31 is provided with the sheet metal 32 that is horn-like opening.
As shown in Figure 4, described curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, is provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, between curved metal supporting bracket 4 and two rosettes, with screw, is connected, and plays a supportive role.
As shown in Figure 5, the symmetrical packed column lens antenna of part medium II type comprises round metal dish type parallel-plate waveguide 1, two media 2, curved metal supporting bracket 4, perpendicular polarization wedge-shaped medium staff aerial 5, round metal dish type parallel-plate waveguide 1 consists of upper and lower two rosettes, a surface of two media 2 is arcwall face, two arcwall faces of two media 2 intersect at a point, another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide 1 and the symmetrical packed column lens of the common part medium of medium 2, in the middle of the edge of round metal dish type parallel-plate waveguide 1, place is provided with perpendicular polarization wedge-shaped medium staff aerial 5, perpendicular polarization wedge-shaped medium staff aerial 5 comprises dielectric substrate 51, microstrip line 52, wedge-shaped medium rod 53, dielectric substrate 51 is provided with microstrip line 52, wedge-shaped medium rod 53, microstrip line 52 is connected with wedge-shaped medium rod 53, the phase center of perpendicular polarization wedge-shaped medium staff aerial 5 overlaps with the focus of the symmetrical packed column lens of part medium, two rosette edges of round metal dish type parallel-plate waveguide 1 are provided with curved metal supporting bracket 4, curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, be provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, perpendicular polarization wedge-shaped medium staff aerial 5 is embedded in the deep-slotted chip breaker 42 in the middle of curved metal supporting bracket 4, between curved metal supporting bracket 4 and two rosettes, with screw, be connected, play a supportive role.
As shown in Figure 6, a surface of described two media 2 is arcwall face, and two arcwall faces of two media 2 intersect at a point, and another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively.
As shown in Figure 7, described perpendicular polarization wedge-shaped medium staff aerial 5 comprises dielectric substrate 51, microstrip line 52, wedge-shaped medium rod 53, and dielectric substrate 51 is provided with microstrip line 52, wedge-shaped medium rod 53, and microstrip line 52 is connected with wedge-shaped medium rod 53.
As shown in Figure 8, the symmetrical packed column lens antenna of part medium III type comprises round metal dish type parallel-plate waveguide 1, two media 2, curved metal supporting bracket 4, horizontal polarization gradual change slot antenna array 6, round metal dish type parallel-plate waveguide 1 consists of upper and lower two rosettes, a surface of two media 2 is arcwall face, two arcwall faces of two media 2 intersect at a point, another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide 1 and the symmetrical packed column lens of the common part medium of medium 2, in the middle of the edge of round metal dish type parallel-plate waveguide 1, place is provided with horizontal polarization gradual change slot antenna array 6, horizontal polarization gradual change slot antenna array 6 consists of a plurality of horizontal polarization gradual change slot antennas 3 that are arranged in arc, horizontal polarization gradual change slot antenna 3 comprises dielectric substrate 31 and sheet metal 32, dielectric substrate 31 is provided with the sheet metal 32 that is horn-like opening, the phase center face of horizontal polarization gradual change slot antenna array 6 overlaps with the focal plane of the symmetrical packed column lens of part medium, in order to realize multi-beam scanning, two rosette edges of round metal dish type parallel-plate waveguide 1 are provided with curved metal supporting bracket 4, curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, be provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, horizontal polarization gradual change slot antenna array 6 is embedded in the deep-slotted chip breaker 42 in the middle of curved metal supporting bracket 4, between curved metal supporting bracket 4 and two rosettes, with screw, be connected, play a supportive role.
As shown in Figure 9, described horizontal polarization gradual change slot antenna array 6 consists of a plurality of horizontal polarization gradual change slot antennas 2 that are arranged in arc, in order to realize multi-beam scanning.
As shown in figure 10, the symmetrical packed column lens antenna of part medium IV type comprises round metal dish type parallel-plate waveguide 1, two media 2, curved metal supporting bracket 4, perpendicular polarization wedge-shaped medium staff aerial array 7, round metal dish type parallel-plate waveguide 1 consists of upper and lower two rosettes, a surface of two media 2 is arcwall face, two arcwall faces of two media 2 intersect at a point, another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide 1 and the symmetrical packed column lens of the common part medium of medium 2, in the middle of the edge of round metal dish type parallel-plate waveguide 1, place is provided with perpendicular polarization wedge-shaped medium staff aerial array 7, perpendicular polarization wedge-shaped medium staff aerial array 7 consists of a plurality of perpendicular polarization wedge-shaped medium staff aerials 5 that are arranged in arc, perpendicular polarization wedge-shaped medium staff aerial 5 comprises dielectric substrate 51, microstrip line 52, wedge-shaped medium rod 53, dielectric substrate 51 is provided with microstrip line 52, wedge-shaped medium rod 53, microstrip line 52 is connected with wedge-shaped medium rod 53, the phase center face of perpendicular polarization wedge-shaped medium staff aerial array 7 overlaps with the focal plane of the symmetrical packed column lens of part medium, in order to realize multi-beam scanning, two rosette edges of round metal dish type parallel-plate waveguide 1 are provided with curved metal supporting bracket 4, curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, be provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, perpendicular polarization wedge-shaped medium staff aerial array 7 is embedded in the deep-slotted chip breaker 42 in the middle of curved metal supporting bracket 4, between curved metal supporting bracket 4 and two rosettes, with screw, be connected, play a supportive role.
As shown in figure 11, described perpendicular polarization wedge-shaped medium staff aerial array 7 consists of a plurality of perpendicular polarization wedge-shaped medium staff aerials 5 that are arranged in arc, in order to realize multi-beam scanning.
As shown in figure 12, the symmetrical packed column lens antenna of part medium V type comprises round metal dish type parallel-plate waveguide 1, two media 2, curved metal supporting bracket 4, horizontal polarization gradual change slot antenna array 6, round metal dish type parallel-plate waveguide 1 consists of upper and lower two rosettes, a surface of two media 2 is arcwall face, two arcwall faces of two media 2 intersect at a point, another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide 1 and the symmetrical packed column lens of the common part medium of medium 2, in the middle of the edge of round metal dish type parallel-plate waveguide 1, place is provided with horizontal polarization gradual change slot antenna array 6, horizontal polarization gradual change slot antenna array 6 consists of a plurality of horizontal polarization gradual change slot antennas 3 that are arranged in arc, horizontal polarization gradual change slot antenna 3 comprises dielectric substrate 31 and sheet metal 32, dielectric substrate 31 is provided with the sheet metal 32 that is horn-like opening, the phase center face of horizontal polarization gradual change slot antenna array 6 overlaps with the focal plane of the symmetrical packed column lens of part medium, in order to realize multi-beam scanning, two rosette edges of round metal dish type parallel-plate waveguide 1 are provided with curved metal supporting bracket 4, curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, be provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, horizontal polarization gradual change slot antenna array 6 is embedded in the deep-slotted chip breaker 42 in the middle of curved metal supporting bracket 4, between curved metal supporting bracket 4 and two rosettes, with screw, be connected, play a supportive role.The symmetrical packed column lens antenna of described part medium is a plurality of stacking, and the signal phase that every one deck is corresponding different forms aerial array and realizes phase-array scanning, adopts this structure can have the advantage of phase-array scanning and multi-beam scanning concurrently.
As shown in figure 13, a surface of described two media 2 is arcwall face, and two arcwall faces of two media 2 intersect at a point, and another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively.A plurality of stacked groups of the symmetrical packed column lens antenna of described part medium become aerial array to realize phase-array scanning.
As shown in figure 14, the symmetrical packed column lens antenna of part medium VI type comprises round metal dish type parallel-plate waveguide 1, two media 2, curved metal supporting bracket 4, perpendicular polarization wedge-shaped medium staff aerial array 7, round metal dish type parallel-plate waveguide 1 consists of upper and lower two rosettes, a surface of two media 2 is arcwall face, two arcwall faces of two media 2 intersect at a point, another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively, cavity between two rosettes up and down of round metal dish type parallel-plate waveguide 1 and the symmetrical packed column lens of the common part medium of medium 2, in the middle of the edge of round metal dish type parallel-plate waveguide 1, place is provided with perpendicular polarization wedge-shaped medium staff aerial array 7, perpendicular polarization wedge-shaped medium staff aerial array 7 consists of a plurality of perpendicular polarization wedge-shaped medium staff aerials 5 that are arranged in arc, perpendicular polarization wedge-shaped medium staff aerial 5 comprises dielectric substrate 51, microstrip line 52, wedge-shaped medium rod 53, dielectric substrate 51 is provided with microstrip line 52, wedge-shaped medium rod 53, microstrip line 52 is connected with wedge-shaped medium rod 53, the phase center face of perpendicular polarization wedge-shaped medium staff aerial array 7 overlaps with the focal plane of the symmetrical packed column lens of part medium, in order to realize multi-beam scanning, two rosette edges of round metal dish type parallel-plate waveguide 1 are provided with curved metal supporting bracket 4, curved metal supporting bracket 4 comprises curved metal piece 41, deep-slotted chip breaker 42 and screw hole 43, be provided with deep-slotted chip breaker 42 and screw hole 43 on curved metal piece 41, perpendicular polarization wedge-shaped medium staff aerial array 7 is embedded in the deep-slotted chip breaker 42 in the middle of curved metal supporting bracket 4, between curved metal supporting bracket 4 and two rosettes, with screw, be connected, play a supportive role.The symmetrical packed column lens antenna of described part medium is a plurality of stacking, and the signal phase that every one deck is corresponding different forms aerial array and realizes phase-array scanning, adopts this structure can have the advantage of phase-array scanning and multi-beam scanning concurrently.
As shown in figure 15, a surface of described two media 2 is arcwall face, and two arcwall faces of two media 2 intersect at a point, and another surface of two media 2 is close to two rosettes up and down of round metal dish type parallel-plate waveguide 1 respectively.A plurality of stacked groups of the symmetrical packed column lens antenna of described part medium become aerial array to realize phase-array scanning.
Cavity between two rosettes up and down of the round metal dish type parallel-plate waveguide 1 described in above six kinds of modes and the symmetrical packed column lens of the common part medium of medium 2.The variations in refractive index of the symmetrical packed column lens of described part medium meets dragon uncle law
, wherein
RFor the radius of the symmetrical packed column lens of part medium,
rFor any point on the symmetrical packed column lens of part medium arrives the distance in the center of circle,
.The material of described medium 2 is: polystyrene
, the material of dielectric substrate 31 is: RT/Duroid 5880.
Be more than the specific embodiment of the present invention, those skilled in the art can produce the symmetrical packed column lens antenna of this part medium by applying some alternative of mentioning in method disclosed by the invention and invention.The present invention realizes simply, and low cost can be extended to the millimeter wave high-end applications easily, and the decline that can not bring performance index.This post lens technologies is highly suitable for fan-shaped wide angle multi-beam and sweeps system, for example takeoff and landing radar system.
Claims (8)
1. the symmetrical packed column lens antenna of part medium, is characterized in that comprising round metal dish type parallel-plate waveguide (1), two media (2), horizontal polarization gradual change slot antenna (3), curved metal supporting bracket (4), round metal dish type parallel-plate waveguide (1) consists of upper and lower two rosettes, a surface of each medium (2) is arcwall face, two arcwall faces of two media (2) intersect at a point, another surface of two media (2) is close to two rosettes up and down of round metal dish type parallel-plate waveguide (1) respectively, the symmetrical packed column lens of the common part medium of cavity between two rosettes up and down of round metal dish type parallel-plate waveguide (1) and medium (2), in the middle of the edge of round metal dish type parallel-plate waveguide (1), place is provided with horizontal polarization gradual change slot antenna (3), horizontal polarization gradual change slot antenna (3) comprises dielectric substrate (31) and sheet metal (32), dielectric substrate (31) is provided with the sheet metal (32) that is horn-like opening, two rosette edges of round metal dish type parallel-plate waveguide (1) are provided with curved metal supporting bracket (4), curved metal supporting bracket (4) comprises curved metal piece (41), deep-slotted chip breaker (42) and screw hole (43), be provided with deep-slotted chip breaker (42) and screw hole (43) on curved metal piece (41), horizontal polarization gradual change slot antenna (3) is embedded in the deep-slotted chip breaker (42) in the middle of curved metal supporting bracket (4).
2. the symmetrical packed column lens antenna of part medium according to claim 1, is characterized in that the variations in refractive index of the symmetrical packed column lens of described part medium meets dragon uncle law
, wherein
RFor the radius of the symmetrical packed column lens of part medium,
rFor any point on the symmetrical packed column lens of part medium arrives the distance in the center of circle,
.
3. the symmetrical packed column lens antenna of part medium according to claim 1, is characterized in that the material of described medium (2) is: polystyrene
, the material of dielectric substrate (31) is: RT/Duroid 5880.
4. the symmetrical packed column lens antenna of part medium, is characterized in that comprising round metal dish type parallel-plate waveguide (1), two media (2), curved metal supporting bracket (4), perpendicular polarization wedge-shaped medium staff aerial (5), round metal dish type parallel-plate waveguide (1) consists of upper and lower two rosettes, a surface of each medium (2) is arcwall face, two arcwall faces of two media (2) intersect at a point, another surface of two media (2) is close to two rosettes up and down of round metal dish type parallel-plate waveguide (1) respectively, the symmetrical packed column lens of the common part medium of cavity between two rosettes up and down of round metal dish type parallel-plate waveguide (1) and medium (2), in the middle of the edge of round metal dish type parallel-plate waveguide (1), place is provided with perpendicular polarization wedge-shaped medium staff aerial (5), perpendicular polarization wedge-shaped medium staff aerial (5) comprises dielectric substrate (51), microstrip line (52), wedge-shaped medium rod (53), dielectric substrate (51) is provided with microstrip line (52), wedge-shaped medium rod (53), microstrip line (52) is connected with wedge-shaped medium rod (53), two rosette edges of round metal dish type parallel-plate waveguide (1) are provided with curved metal supporting bracket (4), curved metal supporting bracket (4) comprises curved metal piece (41), deep-slotted chip breaker (42) and screw hole (43), be provided with deep-slotted chip breaker (42) and screw hole (43) on curved metal piece (41), perpendicular polarization wedge-shaped medium staff aerial (5) is embedded in the deep-slotted chip breaker (42) in the middle of curved metal supporting bracket (4).
5. the symmetrical packed column lens antenna of part medium, is characterized in that comprising round metal dish type parallel-plate waveguide (1), two media (2), curved metal supporting bracket (4), horizontal polarization gradual change slot antenna array (6); round metal dish type parallel-plate waveguide (1) consists of upper and lower two rosettes, a surface of each medium (2) is arcwall face, two arcwall faces of two media (2) intersect at a point, another surface of two media (2) is close to two rosettes up and down of round metal dish type parallel-plate waveguide (1) respectively, the symmetrical packed column lens of the common part medium of cavity between two rosettes up and down of round metal dish type parallel-plate waveguide (1) and medium (2), in the middle of the edge of round metal dish type parallel-plate waveguide (1), place is provided with horizontal polarization gradual change slot antenna array (6), horizontal polarization gradual change slot antenna array (6) consists of a plurality of horizontal polarization gradual change slot antennas (3) that are arranged in arc, horizontal polarization gradual change slot antenna (3) comprises dielectric substrate (31) and sheet metal (32), dielectric substrate (31) is provided with the sheet metal (32) that is horn-like opening, two rosette edges of round metal dish type parallel-plate waveguide (1) are provided with curved metal supporting bracket (4), curved metal supporting bracket (4) comprises curved metal piece (41), deep-slotted chip breaker (42) and screw hole (43), be provided with deep-slotted chip breaker (42) and screw hole (43) on curved metal piece (41), horizontal polarization gradual change slot antenna array (6) is embedded in the deep-slotted chip breaker (42) in the middle of curved metal supporting bracket (4).
6. the symmetrical packed column lens antenna of a kind of part medium according to claim 5, is characterized in that by the symmetrical packed column lens antenna array of the symmetrical packed column lens antenna of a plurality of part media stacked on top part medium.
7. the symmetrical packed column lens antenna of part medium, is characterized in that comprising round metal dish type parallel-plate waveguide (1), two media (2), curved metal supporting bracket (4), perpendicular polarization wedge-shaped medium staff aerial array (7), round metal dish type parallel-plate waveguide (1) consists of upper and lower two rosettes, a surface of each medium (2) is arcwall face, two arcwall faces of two media (2) intersect at a point, another surface of two media (2) is close to two rosettes up and down of round metal dish type parallel-plate waveguide (1) respectively, the symmetrical packed column lens of the common part medium of cavity between two rosettes up and down of round metal dish type parallel-plate waveguide (1) and medium (2), in the middle of the edge of round metal dish type parallel-plate waveguide (1), place is provided with perpendicular polarization wedge-shaped medium staff aerial array (7), perpendicular polarization wedge-shaped medium staff aerial array (7) consists of a plurality of perpendicular polarization wedge-shaped medium staff aerials (5) that are arranged in arc, perpendicular polarization wedge-shaped medium staff aerial (5) comprises dielectric substrate (51), microstrip line (52), wedge-shaped medium rod (53), dielectric substrate (51) is provided with microstrip line (52), wedge-shaped medium rod (53), microstrip line (52) is connected with wedge-shaped medium rod (53), two rosette edges of round metal dish type parallel-plate waveguide (1) are provided with curved metal supporting bracket (4), curved metal supporting bracket (4) comprises curved metal piece (41), deep-slotted chip breaker (42) and screw hole (43), be provided with deep-slotted chip breaker (42) and screw hole (43) on curved metal piece (41), perpendicular polarization wedge-shaped medium staff aerial array (7) is embedded in the deep-slotted chip breaker (42) in the middle of curved metal supporting bracket (4).
8. the symmetrical packed column lens antenna of a kind of part medium according to claim 7, is characterized in that by the symmetrical packed column lens antenna array of the symmetrical packed column lens antenna of a plurality of part media stacked on top part medium.
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