CN102231456B - Dual-band dual-polarization shared aperture antenna - Google Patents
Dual-band dual-polarization shared aperture antenna Download PDFInfo
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Abstract
The invention relates to a dual-band dual-polarization shared aperture antenna comprising at least three radiating waveguide tubes in parallel connection and microwave substrates, wherein first to fourth radiating slots and fifth to eighth radiating slots are arranged at two sides of longitudinal center lines of the top surfaces of the odd radiating waveguide tubes and even radiating waveguide tubes respectively in a staggered mode; the eight radiating slots are horizontally-polarized radiating slots; the tops of the microwave substrates at the adjacent positions of the odd radiating waveguide tubes and the even waveguide tubes are provided with at least four radiating pieces respectively; and the four radiating pieces can keep away from the radiating slots on the radiating waveguide tubes, every two radiating pieces are connected by metal wires, and the metal wires and the radiating waveguide tubes are provided with feed holes and waveguide tube feed holes respectively. As a feed source antenna, the shared aperture antenna is simple in structure, high in integrated level and convenient to install; and in pillbox antennas, the shared aperture antenna utilized as a feed source is quick in data updating, high in measurement accuracy and strong in function, and can be used for measuring rain, clouds and snow, alarming on strong thunderstorm, typhoon and other severe weather and predicting other more meteorological information.
Description
Technical field
The present invention relates to Dual-band dual-polarization co-aperture antenna, specifically a kind of Dual-band dual-polarization co-aperture antenna being formed by radiated wave conduit and microband paste.
The present invention is mainly used as the feed antenna of reflector antenna, both can be used for receiving, also can be used for launching radio wave.At military aspect, can be used as the terminal antenna of radar system and the feed antenna of reflector antenna.Aspect civilian, can be used as the feed antenna of weather radar scanner, spaceborne radar antenna and reflector antenna etc.
Background technology
In the research of atmospheric science, Marine Sciences and environmental science, precipitation is a very important physical quantity.The accurate measurement of precipitation is all significant to carrying out the work in everies such as Forecast of Meteorological Disaster, disaster reduction and prevention and arrangement industrial and agricultural production.
The development trend of precipitation instrumentation radar is to adopt satellite as carrier, i.e. spaceborne precipitation instrumentation radar.The development trend of spaceborne precipitation instrumentation radar antenna is dual-frequency/polarization antenna.The advantage of the spaceborne precipitation instrumentation radar of employing dual-frequency/polarization antenna is as follows: have the raindrop of measurement and distribute, measure the functions such as vertical rain speed, movement tendency forecast, also there is the distinguishing ability to rain, snow, and the prediction to the boisterous warnings such as hurricane, Strong Thunderstorm and other more weather informations can be provided.
Aspect spaceborne precipitation instrumentation radar antenna, the dual-frequency/polarization antenna of developing in the world has 2 kinds of schemes, and a kind of is to adopt planar array antenna, and another kind is to adopt parabolic-cylinder antenna.Planar array antenna is comprised of many identical antenna elements, compare with parabolic-cylinder antenna, reaching in same electrical performance indexes situation, planar array antenna is larger than parabolic-cylinder antenna equipment amount, therefore, parabolic-cylinder antenna is representing the usage trend of spaceborne precipitation instrumentation radar.
Parabolic-cylinder antenna is comprised of parabolic cylinder reflecting surface and feed antenna two parts, and design difficulty is wherein the design of feed antenna.Only have by feed antenna cleverly and design, just can make spaceborne precipitation instrumentation radar be operated in Dual-band dual-polarization pattern, thereby embody the advantage of the spaceborne precipitation instrumentation radar that adopts dual-frequency/polarization antenna.
Summary of the invention
In order to make spaceborne precipitation instrumentation radar antenna be operated in Dual-band dual-polarization pattern, the invention provides Dual-band dual-polarization co-aperture antenna.
Concrete technical solution is as follows:
Dual-band dual-polarization co-aperture antenna comprises at least three the radiated wave conduit and the microwave base plates that connect side by side; Every radiated wave conduit is square tube, and an end face is short circuit face, and the other end is energy input port; The longitudinal centre line both sides of the end face of odd number radiated wave conduit are staggered the first radiating slot 1, the second radiating slot 2, the 3rd radiating slot 3 and the 4th radiating slot 4 of being provided with respectively, staggered the 5th radiating slot 5, the 6th radiating slot 6, the 7th radiating slot 7 and the 8th radiating slot 8 of being provided with in longitudinal centre line both sides of the end face of even number radiated wave conduit; Described eight radiating slots are horizontal polarization radiating slot; The microwave base plate top of described odd number radiated wave conduit and even number radiated wave conduit adjacent is provided with at least four radiation fins; Described four radiation fins are all avoided the radiating slot on radiated wave conduit, between every two radiation fins, by metal wire, are connected, and described metal wire connects to be provided with presents hole; The radiated wave conduit corresponding with described feedback hole is provided with waveguide feedback hole;
The width a scope of the cross section of described every radiated wave conduit is: 0.5 λ
l< a < λ
h, height b scope is: b < 0.5 λ
h: the distance D wg scope between adjacent radiation waveguide is: Dwg < 0.89 λ
h; λ wherein
hka wave band upper side frequency free space wavelength, λ
lka wave band lower side frequency free space wavelength;
Described the first radiating slot 1 and the 5th radiating slot 5 are 0.25 λ with the distance D open of the energy input port of radiated wave conduit
g0, the 4th radiating slot 4 and the 8th radiating slot 8 are 0.25 λ with the distance D short of the short circuit face of radiated wave conduit
g0, λ wherein
g0it is Ka midband frequency guide wavelength; The adjacent spacing between longitudinally of described the first radiating slot 1, the second radiating slot 2, the 3rd radiating slot 3 and the 4th radiating slot 4, the adjacent spacing between longitudinally of the 5th radiating slot 5, the 6th radiating slot 6, the 7th radiating slot 7 and the 8th radiating slot 8 all equates; Described λ
g0it is Ka midband frequency guide wavelength;
The long Ls1 of seam of described the first radiating slot 1 and the 5th radiating slot 5 is 0.4 λ
0≤ Ls1≤0.6 λ
0, and with the distance D 1 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D1≤0.12 λ
0,
The long Ls2 of seam of described the second radiating slot 2 and the 6th radiating slot 6 is 0.4 λ
0≤ Ls2≤0.6 λ
0, and with the distance D 2 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D2≤0.12 λ
0,
The long Ls3 of seam of described the 3rd radiating slot 3 and the 7th radiating slot 7 is 0.4 λ
0≤ Ls3≤0.6 λ
0, and with the distance D 3 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D3≤0.12 λ
0,
The long Ls4 of seam of described the 4th radiating slot 2 and the 8th radiating slot 8 is 0.4 λ
0≤ Ls4≤0.6 λ
0, and with the distance D 4 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D4≤0.12 λ
0;
Described λ
0it is Ka midband frequency wavelength;
The wide Ws of seam of described eight radiating slots is identical, is 1mm～2mm.
Described two radiation fins that connected by metal wire are rectangle or M shape, and the distance D P between two radiation fins is DP < λ
h'; The length L p of the radiation fin of rectangle is Lp < 0.6 λ
0', width W p is Wp < 0.5 λ
0'; The length L p of the radiation fin of M shape is Lp < 0.6 λ
0', width W p is Wp < 0.5 λ
0', the length L pn of two inside grooves of the radiation fin of M shape is Lpn < 0.2 λ
0', width W pn is Wpn < 0.2 λ
0'; Described λ
0' be Ku midband frequency wavelength, described λ
h' be Ku wave band upper side frequency free space wavelength.
Useful technique effect of the present invention embodies in the following areas:
1, as feed antenna itself, what Dual-band dual-polarization co-aperture antenna adopted is common bore form, so the space taking is 1/2 of non-shared aperture antenna space, therefore, that Dual-band dual-polarization co-aperture antenna of the present invention has is simple in structure, integrated level is high, is convenient to the features such as installation;
2, in parabolic-cylinder antenna, adopt Dual-band dual-polarization co-aperture antenna of the present invention as feed, can make spaceborne precipitation instrumentation radar be operated in Dual-band dual-polarization pattern, with respect to being operated in one-segment single polarization pattern, the spaceborne precipitation instrumentation radar of one-segment dual polarization pattern and two-band single polarization pattern, the spaceborne precipitation instrumentation radar tool that is operated in Dual-band dual-polarization pattern has the following advantages: Data Update is fast, namely can to meteorology, change and monitor and forecast in time, to the rainfall data turnover rate in somewhere from being greater than 1 day, rise to and be less than 1 hour, certainty of measurement is high, namely more easily monitors little meteorological target, and the minimum raininess of measuring is brought up to 0.2mm/h from 0.5mm/h, can bring up to 0.05mm/h later, with better function, namely can not only survey rain, can also survey cloud, snow, meanwhile, also can provide the prediction to the boisterous warnings such as Strong Thunderstorm, hurricane and other more weather information.
Accompanying drawing explanation
Fig. 1 is the antenna stereoscopic design sketch being comprised of three radiated wave conduits.
Fig. 2 is the antenna exploded view being comprised of three radiated wave conduits.
Fig. 3 is the cross-sectional view of three radiated wave conduits.
Fig. 4 is the top view of three radiated wave conduits.
Fig. 5 is the top view of the microwave base plate that coordinates with three radiated wave conduits.
Fig. 6 is the antenna stereoscopic design sketch being comprised of four radiated wave conduits.
Fig. 7 is the top view of four radiated wave conduits.
Fig. 8 is the top view of the microwave base plate that coordinates with four radiated wave conduits.
Fig. 9 is the antenna pattern of two kinds of polarization of two wave bands of antenna of being comprised of three radiated wave conduits.
Figure 10 is the antenna pattern of two kinds of polarization of two wave bands of antenna of being comprised of four radiated wave conduits.
In Fig. 1-8: the first radiating slot 1, the second radiating slot 2, the 3rd radiating slot 3, the 4th radiating slot 4, the 5th radiating slot 5, the 6th radiating slot 6, the 7th radiating slot 7, the 8th radiating slot 8, the 9th radiation fin 9, the tenth radiation fin 10, the 11 radiation fin 11, the 12 radiation fin 12, the first radiated wave conduit 13, the second radiated wave conduit 14, the 3rd radiated wave conduit 15, first wave conduit feedback hole 16, Second Wave conduit feedback hole 17, the first feedback hole 18, the second feedback hole 19, the 4th radiated wave conduit 20, the 21 radiation fin 21, the 22 radiation fin 22, San Kui hole 23, metal wall thickness 24, microwave base plate 25, the 3rd waveguide feedback hole 26.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
Embodiment 1:
Referring to Fig. 1-5, Dual-band dual-polarization co-aperture antenna is comprised of the 9th radiation fin 9, the tenth radiation fin the 10, the 11 radiation fin 11 and the 12 radiation fin 12 that work in the first radiated wave conduit 13, the second radiated wave conduit 14 and the 3rd radiated wave conduit 15 of Ka wave band horizontal polarization and work on the dual-polarized microwave base plate 25 of Ku wave band.
Concrete structure is as follows: every radiated wave conduit is square tube, and an end face is short circuit face, and the other end is energy input port, sees Fig. 2 and Fig. 3.The longitudinal centre line both sides of the end face of odd number radiated wave conduit are staggered the first radiating slot 1, the second radiating slot 2, the 3rd radiating slot 3 and the 4th radiating slot 4 of being provided with respectively, staggered the 5th radiating slot 5, the 6th radiating slot 6, the 7th radiating slot 7 and the 8th radiating slot 8 of being provided with in longitudinal centre line both sides of the end face of even number radiated wave conduit; Described eight radiating slots are horizontal polarization radiating slot; From seeing Fig. 2, Fig. 4, the position of four radiating slots on the first radiated wave conduit 13 and the 3rd radiated wave conduit 15, measure-alike.The microwave base plate top of odd number radiated wave conduit and even number radiated wave conduit adjacent is separately installed with four radiation fins, i.e. the 9th radiation fin 9, the tenth radiation fin the 10, the 11 radiation fin 11 and the 12 radiation fin 12, four radiation fins are all avoided the radiating slot on radiated wave conduit, between the 9th radiation fin 9 and the tenth radiation fin 10, by metal wire, connected, metal wire connection is provided with the first feedback hole 18, offers first wave conduit feedback hole 16 on the radiated wave conduit corresponding with the first feedback hole 18; Between the 11 radiation fin 11 and the 12 radiation fin 12, by metal wire, connected, metal wire offers the second feedback hole 19 on connecting, and offers Second Wave conduit feedback hole 17 on the radiated wave conduit corresponding with the second feedback hole 19; See Fig. 2.
The work centre frequency of Ka wave band is f
0, lower side frequency is f
lupper side frequency is f
h, the present embodiment is selected respectively 35.5GHz, 35.4GHz, 35.6GHz.The work centre frequency of Ku wave band is f
0', lower side frequency is f
l', upper side frequency is f
h', the present embodiment is selected respectively 13.6GHz, 13.4GHz, 13.8GHz.
The cross section of 3 radiated wave conduits is rectangle, and its width is a, is highly b, and the distance between radiated wave conduit is Dwg, as shown in Figure 3.
The length of the first radiation gap 1 is Ls1, the length of the second radiating slot 2 is Ls2, the length of the 3rd radiating slot 3 is Ls3, the length of the 4th radiating slot 4 is Ls4, the width of 4 radiating slots is Ws, the spacing of the second radiating slot 2 and the 3rd radiating slot 3 is D2s3, the distance of the first radiating slot 1 and the first radiated wave conduit 13 longitudinal centre lines is D1, the distance of the second radiating slot 2 and the first radiated wave conduit 13 longitudinal centre lines is D2, the 4th radiating slot 4 is D4 with the distance of radiated wave conduit 13 longitudinal centre lines, the energy input port distance of the first radiating slot 1 and the first radiated wave conduit 13 is Dopen, the distance of the short circuit face of the 4th radiating slot 4 and the first radiated wave conduit 13 is Dshort, first wave conduit feedback hole 16 and Second Wave conduit feedback hole 17 are positioned at the center of adjacent radiation waveguide, first wave conduit feedback hole 16 is D16 with the energy input port distance of radiated wave conduit 13, Second Wave conduit feedback hole 17 is D17 with the energy input port distance of radiated wave conduit 14, as shown in Figure 4.The long Ls1 of seam of the first radiating slot 1 and the 5th radiating slot 5 equates, and equates with the distance D 1 of the longitudinal centre line of radiated wave conduit separately; The long Ls2 of seam of the second radiating slot 2 and the 6th radiating slot 6 equates, and equates with the distance D 2 of the longitudinal centre line of radiated wave conduit separately; The long Ls3 of seam of the 3rd radiating slot 3 and the 7th radiating slot 7 equates, and equates with the distance D 3 of the longitudinal centre line of radiated wave conduit separately; The long Ls4 of seam of the 4th radiating slot 2 and the 8th radiating slot 8 equates, and with the distance D 4 of the longitudinal centre line of radiated wave conduit separately for equating.
Referring to Fig. 5, the 9th radiation fin 9 and the tenth radiation fin 10 are rectangle, and size is identical, and length is Lp9, and width is Wp9, and the distance between the 9th radiation fin 9 and the tenth radiation fin 10 is D9p10; The 11 radiation fin 11 and the 12 radiation fin 12 are M shape, and size is identical, and length is Lp11, and width is Wp11, and the length of interior groove is Lp12, and the width of interior groove is Wp12, and the distance between the 11 radiation fin 11 and the 12 radiation fin 12 is D11p12.
Design parameter is determined as follows:
Determine the parameter of Ka wave band antenna.According to operating frequency of antenna, first determine the width a of 3 radiated wave conduits, its range of choice is: 0.5 λ
l< a < λ
h(λ
hka wave band upper side frequency free space wavelength, λ
lka wave band lower side frequency free space wavelength, here, 0.5 λ
l< λ
h), the present embodiment is 0.625 λ
l(0.625 λ
l< λ
h); Determine the b of 3 radiated wave conduits, its range of choice is: b < 0.5 λ
h, the present embodiment is 0.309 λ
h.According to the requirement of parabolic-cylinder antenna battle array sweep limits, determine the distance D wg between adjacent radiation waveguide, its range of choice is: Dwg < 0.89 λ
h, the present embodiment is 0.84 λ
h.The energy input port distance D open=0.25 λ of the first radiating slot 1 and the first radiated wave conduit 13
g0(λ
g0ka midband frequency guide wavelength), the distance D short=0.25 λ of the short circuit face of the 4th radiating slot 4 and the first radiated wave conduit 13
g0.According to the needs of parabolic-cylinder antenna beamwidth and secondary lobe, determine the distance of space D 2s3 and 4 horizontal polarization radiating slots and first radiated wave conduit 13 longitudinal centre lines of 4 horizontal polarization radiating slots, meanwhile, also should meet the admittance in 4 gaps and be 1, the present embodiment is: D2s3=0.828 λ
0, Ws=0.118 λ
0, Ls1=0.454 λ
0, Ls2=0.466 λ
0, Ls3=0.465 λ
0, Ls4=0.456 λ
0, D1=0.04 λ
0, D2=0.098 λ
0, D3=0.098 λ
0, D4=0.044 λ
0(λ
0ka midband frequency wavelength).In order to make antenna be operated in dual-band and dual-polarization pattern, need to adjust the distance D 16 of first wave conduit feedback hole 16 and the first radiated wave conduit 13 energy input ports, and the energy input port distance D 17 of Second Wave conduit feedback hole 17 and the second radiated wave conduit 14, the present embodiment is: D16=2.248 λ
0, D17=2.662 λ
0.
Determine the parameter of Ku wave band antenna.According to operating frequency of antenna, determine the 9th radiation fin 9 length L p9, its range of choice is: Lp9 < 0.6 λ
0' (λ
0' be Ku midband frequency wavelength), the present embodiment is 0.289 λ
0'.The 9th radiation fin 9 width W p9, its range of choice is: Wp9 < 0.5 λ
0', the present embodiment is 0.163 λ
0'.According to the needs of parabolic-cylinder antenna beamwidth and secondary lobe, determine the 9th radiation fin 9 and the tenth radiation fin 10 distance D 9p10, its range of choice is: D9p10 < λ
h' (λ
h' be Ku wave band upper side frequency free space wavelength), the present embodiment is 0.548 λ
h'.According to operating frequency of antenna, determine the 11 radiation fin 11 length L p11, its range of choice is: Lp11 < 0.5 λ
0' (λ
0' be Ku midband frequency wavelength), the present embodiment is 0.295 λ
0'.The 11 radiation fin 11 width W p11, its range of choice is: Wp11 < 0.5 λ
0', the present embodiment is 0.149 λ
0'.According to the needs of parabolic-cylinder antenna beamwidth and secondary lobe, determine the 11 radiation fin 11 and the 12 radiation fin 12 distance D 11p12, its range of choice is: D11p12 < λ
h' (λ
h' be Ku wave band upper side frequency free space wavelength), the present embodiment is 0.571 λ
h'.The inner length Lp12 of the 12 radiation fin 12, inner width Wp12, its computational methods are known by this professional designer, and the present embodiment is preferably: Lp12=0.13 λ
0', Wp12=0.02 λ
0'.
Radiating guide pipe thickness t determines with working ability, is preferably 0.8mm.
When this embodiment is used separately as antenna, the space taking is 1/2 of non-shared aperture antenna space, therefore have simple in structure, integrated level is high, is convenient to the features such as installation; While using as the feed of parabolic cylinder, the directional diagram of formation as shown in Figure 9.As seen from Figure 9, the wave beam of any one poliarizing antenna radiation of Ku frequency range is consistent with the beam position of the horizontally-polarized antenna radiation of Ka frequency range, beamwidth equates, now, antenna can be operated in Dual-band dual-polarization pattern, make spaceborne precipitation instrumentation radar be operated in Dual-band dual-polarization pattern, thereby fully demonstrate the advantage of the spaceborne precipitation instrumentation radar that adopts dual-frequency/polarization antenna, with respect to being operated in one-segment single polarization pattern, the spaceborne precipitation instrumentation radar of one-segment dual polarization pattern and two-band single polarization pattern, the spaceborne precipitation instrumentation radar Data Update that is operated in Dual-band dual-polarization pattern is fast, certainty of measurement is high, the feature such as with better function.
Embodiment 2:
Referring to Fig. 6-8, Dual-band dual-polarization co-aperture antenna forms by working in 4 radiated wave conduits of ka wave band horizontal polarization and 6 radiation fins that work on the dual-polarized microwave base plate 25 of Ku wave band.Size and the position of the radiating slot on the radiating slot on the 4th radiated wave conduit 20 and the second radiated wave conduit 14 are just the same, and the 3rd waveguide feedback hole 26 is just the same with first wave guide Kui Kong16 position and size.The 21 radiation fin the 21, the 22 radiation fin 22 ,San Kui holes 23 on microwave base plate 25 are just the same with size and the position in the 11 radiation fin the 11, the 12 radiation fin 12 and the second feedback hole 17 respectively.Other parameter is identical with embodiment 1.
As seen from Figure 10, when adopting 4 radiated wave conduits, antenna also can be operated in Dual-band dual-polarization pattern, make spaceborne precipitation instrumentation radar be operated in Dual-band dual-polarization pattern, thereby fully demonstrate the advantage of the spaceborne precipitation instrumentation radar that adopts dual-frequency/polarization antenna, with respect to the spaceborne precipitation instrumentation radar that can only be operated in one-segment single polarization pattern, one-segment dual polarization pattern and two-band single polarization pattern, the spaceborne precipitation instrumentation radar Data Update that is operated in Dual-band dual-polarization pattern is fast, the features such as certainty of measurement is high, with better function.
Embodiment 3:
Dual-band dual-polarization co-aperture antenna comprises 32 the radiated wave conduit and the microwave base plates that connect side by side.Radiated wave conduit and microwave base plate are operated in respectively different frequency ranges, and other structures are with embodiment 2.
Adopt the spaceborne precipitation instrumentation radar of embodiment 3, except having the function and technique effect of embodiment 1 and embodiment 2, also there is the feature that operating distance is far away, and, along with the increase of radiated wave conduit quantity, the operating distance of spaceborne precipitation instrumentation radar is also more and more far away.
Claims (2)
1. Dual-band dual-polarization co-aperture antenna, is characterized in that: comprise at least three radiated wave conduit and microwave base plates that connect side by side, one of them microwave base plate is positioned at the top of at least three radiated wave conduits that connect side by side; Every radiated wave conduit is square tube, and an end face is short circuit face, and the other end is energy input port; Staggered the first radiating slot (1), the second radiating slot (2), the 3rd radiating slot (3) and the 4th radiating slot (4) of being provided with in longitudinal centre line both sides of the end face of the radiated wave conduit of odd number, staggered the 5th radiating slot (5), the 6th radiating slot (6), the 7th radiating slot (7) and the 8th radiating slot (8) of being provided with in longitudinal centre line both sides of the end face of the radiated wave conduit of even number; Described eight radiating slots are horizontal polarization radiating slot; Described microwave base plate top is provided with two at least four radiation fins that partner; At odd number radiated wave conduit and the microwave base plate top of the adjacent of the even number radiated wave conduit being adjacent, be provided with two radiation fins that partner, every pair of radiation fin is all avoided the radiating slot on radiated wave conduit; Between two radiation fins of every pair of radiation fin, by metal wire, connected, described metal wire is provided with feedback hole; The radiated wave conduit corresponding with described feedback hole is provided with waveguide feedback hole;
The width a scope of the cross section of described every radiated wave conduit is: 0.5 λ
l< a < λ
h, height b scope is: b < 0.5 λ
h; Distance D wg scope between adjacent radiation waveguide unidirectional dual-side is in a lateral direction: Dwg < 0.89 λ
h; λ wherein
hka wave band upper side frequency free space wavelength, λ
lka wave band lower side frequency free space wavelength;
The energy input port of described the first radiating slot (1), the close radiated wave conduit of the 5th radiating slot (5); Distance D open between the center of the first radiating slot (1), the 5th center of radiating slot (5) and the energy input port of radiated wave conduit is 0.25 λ
g0; The short circuit face of described the 4th radiating slot (4), the close radiated wave conduit of the 8th radiating slot (8), the distance D short between the center of the 4th radiating slot (4), the 8th center of radiating slot (8) and the short circuit face of radiated wave conduit is 0.25 λ
g0; The adjacent spacing between longitudinally of described the first radiating slot (1), the second radiating slot (2), the 3rd radiating slot (3) and the 4th radiating slot (4), the adjacent spacing between longitudinally of the 5th radiating slot (5), the 6th radiating slot (6), the 7th radiating slot (7) and the 8th radiating slot (8) is all equal; Described λ
g0it is Ka midband frequency guide wavelength;
The long Ls1 of seam of described the first radiating slot (1) and the 5th radiating slot (5) is 0.4 λ
0≤ Ls1≤0.6 λ
0, and with the distance D 1 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D1≤0.12 λ
0,
The long Ls2 of seam of described the second radiating slot (2) and the 6th radiating slot (6) is 0.4 λ
0≤ Ls2≤0.6 λ
0, and with the distance D 2 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D2≤0.12 λ
0,
The long Ls3 of seam of described the 3rd radiating slot (3) and the 7th radiating slot (7) is 0.4 λ
0≤ Ls3≤0.6 λ
0and with the distance D 3 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D3≤0.12 λ
0,
The long Ls4 of seam of described the 4th radiating slot (2) and the 8th radiating slot (8) is 0.4 λ
0≤ Ls4≤0.6 λ
0, and with the distance D 4 of the longitudinal centre line of radiated wave conduit be separately 0.02 λ
0≤ D4≤0.12 λ
0;
Described λ
0it is Ka midband frequency wavelength;
The wide Ws of seam of described eight radiating slots is identical, is 1mm～2mm.
2. Dual-band dual-polarization co-aperture antenna according to claim 1, is characterized in that: described two radiation fins that connected by metal wire are rectangle or M shape, and the distance D P between two radiation fins is DP < λ
h'; The length L p of the radiation fin of rectangle is Lp < 0.6 λ
0', width W p is Wp < 0.5 λ
0'; The length L p of the radiation fin of M shape is Lp < 0.6 λ
0', width W p is Wp < 0.5 λ
0', the length L pn of two inside grooves of the radiation fin of M shape is Lpn < 0.2 λ
0', width W pn is Wpn < 0.2 λ
0'; Described λ
0' be Ku midband frequency wavelength, described λ
h' be Ku wave band upper side frequency free space wavelength.
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| CN201110102683.8A CN102231456B (en) | 2011-04-25 | 2011-04-25 | Dual-band dual-polarization shared aperture antenna |
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| CN107643522B (en) * | 2017-09-19 | 2020-07-07 | 中国电子科技集团公司第三十八研究所 | Dual-band dual-polarization satellite-borne cloud and rain measurement radar system |
| CN110112578B (en) * | 2019-05-10 | 2021-02-02 | 电子科技大学 | Rectangular waveguide dual-frequency common-aperture antenna based on structural multiplexing |
| US10978785B2 (en) * | 2018-09-10 | 2021-04-13 | Samsung Electro-Mechanics Co., Ltd. | Chip antenna module |
| CN110867644B (en) * | 2019-11-11 | 2021-01-19 | 中国电子科技集团公司第十四研究所 | Dual-band multi-polarization common-caliber coaxial waveguide slot antenna |
| CN113422202B (en) * | 2021-06-22 | 2023-09-01 | 维沃移动通信有限公司 | Antenna unit and electronic device |
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| JP2002151945A (en) * | 2000-11-09 | 2002-05-24 | Shigeo Kawasaki | Planar antenna |
| CN2762373Y (en) * | 2004-12-24 | 2006-03-01 | 佛山市健博通电讯实业有限公司 | High-gain horizontally-polarized plate-shaped antenna |
| CN101420066B (en) * | 2008-11-21 | 2013-04-17 | 中国电子科技集团公司第三十八研究所 | Wideband single layer microstrip patch antenna |
| CN101982900B (en) * | 2010-09-08 | 2013-06-19 | 上海大学 | L/S/X three-band dual-polarized planar antenna array |
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