CN101728641B - Antenna cover and microstrip patch antenna containing same - Google Patents
Antenna cover and microstrip patch antenna containing same Download PDFInfo
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- CN101728641B CN101728641B CN 200810173869 CN200810173869A CN101728641B CN 101728641 B CN101728641 B CN 101728641B CN 200810173869 CN200810173869 CN 200810173869 CN 200810173869 A CN200810173869 A CN 200810173869A CN 101728641 B CN101728641 B CN 101728641B
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Abstract
The invention relates to an antenna cover and a microstrip patch antenna containing the same so as to enable the microstrip patch antenna to keep a thinner thickness while increasing the gain value of the microstrip patch antenna. The antenna cover comprises an antenna cover body, a first gain pattern and a second gain pattern, wherein the antenna cover body is provided with an upper surface and a lower surface; the first gain pattern is arranged on the upper surface and comprises a plurality of first ring gain units; and the second gain pattern is arranged on the lower surface and comprises a plurality of second ring gain units, wherein each first ring gain unit comprises a first conducting ring and a second conducting ring, and each second ring gain unit comprises a third conducting ring and a fourth conducting ring. In addition, the opening direction of the first conducting ring and the opening direction of the third conducting ring are mutually perpendicular.
Description
Technical field
The present invention relates to a kind of radome and a kind of micro-strip paster antenna that comprises this radome, espespecially a kind of yield value of micro-strip paster antenna that promotes is also simultaneously so that micro-strip paster antenna is kept radome and a kind of micro-strip paster antenna that comprises this radome of a smaller size smaller.
Background technology
In recent years, for the emission that promotes a micro-strip paster antenna or the gain (no matter being Circular Polarisation or linear polarization) that receives a high-frequency signal, and avoid being applied to too complicated power combination technology (powercombining techniques), industry proposes a kind of method that is called resonance gain method (resonance gainmethod), be about to a plurality of dielectric layers (dielectric layer) stacking mutually, and this multilayer dielectric layer is arranged on the micro-strip paster antenna, between the two also can and a sandwiched air layer.
But, (the gain the method namely resonates) meeting of this kind mode so that the integral thickness of micro-strip paster antenna increase so that the range of application of this micro-strip paster antenna is restricted.Moreover, because that this kind mode involves a plurality of dielectric layers is mutually stacking forming a multilayer dielectric layer with the specific thicknesses arrangement mode, manufacturing cost in this way higher.Do the essence assessment when in addition, how existing radome does not require for the tool Circular Polarisation.
Therefore, industry needs a kind of radome that promotes the yield value of a micro-strip paster antenna, and so that this micro-strip paster antenna when promoting its yield value, still can be kept a thinner thickness.In addition, also require when the needs Circular Polarisation, better performance to be arranged.
Summary of the invention
Main purpose of the present invention provides a kind of radome, enables to promote a yield value with micro-strip paster antenna of this radome.In addition, also require when the needs Circular Polarisation, better performance to be arranged.
Another object of the present invention provides a kind of micro-strip paster antenna, enables in the yield value that promotes this micro-strip paster antenna, so that this micro-strip paster antenna is kept a thinner thickness.
For reaching above-mentioned purpose, technical solution of the present invention is:
A kind of radome comprises: a radome body has a upper surface and a lower surface; One first gain pattern is to be arranged at this upper surface and to comprise a plurality of first ring-like gain unit; And one second the gain pattern, be to be arranged at this lower surface and to comprise a plurality of second ring-like gain unit.
For reaching above-mentioned purpose, technical solution of the present invention is:
A kind of micro-strip paster antenna comprises: a substrate; One antenna body is the surface that is arranged at this substrate; And a radome, be to be arranged on this antenna body, and this antenna body is at this substrate therewith between the radome.Wherein, this radome comprises a radome body with a upper surface and a lower surface, one first gain pattern and one second gain pattern; This first gain pattern is to be arranged at this upper surface and to comprise a plurality of first ring-like gain unit, and this second gain pattern then is arranged at this lower surface and comprises a plurality of second ring-like gain unit.
Therefore, upper surface and the lower surface of the radome body by radome of the present invention institute tool arrange respectively one first gain pattern and one second gain pattern, and this first gain pattern and this second gain pattern comprises respectively the mode of a plurality of first ring-like gain unit and a plurality of the second ring-like gain units, radome of the present invention just can so that the yield value of a micro-strip paster antenna significantly promote.In addition, because the thickness of radome of the present invention is no better than the thickness (approximately 0.8mm) of its radome body, remarkable thickness less than well-known antenna cover institute tool, so a micro-strip paster antenna (being micro-strip paster antenna of the present invention) with radome of the present invention can promoting its yield value and keeping under the better Circular Polarisation characteristic (when primary antenna is Circular Polarisation), still be kept a thinner thickness.
Description of drawings
Figure 1A is the schematic perspective view of the radome of one embodiment of the invention;
Figure 1B is the schematic diagram of upper surface of radome body of the radome of one embodiment of the invention;
Fig. 1 C is the schematic diagram of lower surface of radome body of the radome of one embodiment of the invention;
Fig. 2 A is the schematic perspective view of the radome of another embodiment of the present invention;
Fig. 2 B is the schematic diagram of upper surface of radome body of the radome of another embodiment of the present invention;
Fig. 2 C is the schematic diagram of lower surface of radome body of the radome of another embodiment of the present invention;
Fig. 3 A is the schematic perspective view of the micro-strip paster antenna of further embodiment of this invention;
Fig. 3 B is the schematic diagram of antenna body of the micro-strip paster antenna of further embodiment of this invention;
Fig. 3 C is the schematic diagram of upper surface of radome of the micro-strip paster antenna of further embodiment of this invention;
Fig. 3 D is the schematic diagram of upper surface of radome of the micro-strip paster antenna of further embodiment of this invention;
Fig. 3 E is the schematic diagram of the first ring-like gain unit of the first gain pattern institute tool of radome of the micro-strip paster antenna of further embodiment of this invention;
Fig. 4 A shows by one of an Electromagnetic Simulation software emulation gained can launch or receive " the axiation rate " of micro-strip paster antenna of a Circular Polarisation high-frequency signal along with the schematic diagram of frequency change situation;
Fig. 4 B shows by one of an Electromagnetic Simulation software emulation gained can launch or receive " return loss " of micro-strip paster antenna of a Circular Polarisation high-frequency signal along with the schematic diagram of frequency change situation;
Fig. 5 A shows that " return loss " of the micro-strip paster antenna by an Electromagnetic Simulation software emulation and actual further embodiment of this invention that measures gained is along with the schematic diagram of frequency change situation;
Fig. 5 B shows that " gain " of the micro-strip paster antenna by an Electromagnetic Simulation software emulation and actual further embodiment of this invention that measures gained is along with the schematic diagram of frequency change situation;
Fig. 5 C shows that " the axiation rate " of the micro-strip paster antenna by an Electromagnetic Simulation software emulation and actual further embodiment of this invention that measures gained is along with the schematic diagram of frequency change situation;
Fig. 6 A is the schematic perspective view of the micro-strip paster antenna of yet another embodiment of the invention;
Fig. 6 B is the schematic diagram of upper surface of radome of the micro-strip paster antenna of yet another embodiment of the invention;
Fig. 6 C is the schematic diagram of upper surface of radome of the micro-strip paster antenna of yet another embodiment of the invention;
Fig. 7 A is the more schematic perspective view of the micro-strip paster antenna of an embodiment of the present invention;
Fig. 7 B is the more schematic diagram of the upper surface of the radome of the micro-strip paster antenna of an embodiment of the present invention;
Fig. 7 C is the more schematic diagram of the upper surface of the radome of the micro-strip paster antenna of an embodiment of the present invention;
Fig. 8 A be show respectively the micro-strip paster antenna of micro-strip paster antenna by further embodiment of this invention of an Electromagnetic Simulation software emulation gained, yet another embodiment of the invention and the present invention more " return loss " of the micro-strip paster antenna of an embodiment along with the schematic diagram of frequency change situation;
Fig. 8 B be show respectively the micro-strip paster antenna of micro-strip paster antenna by further embodiment of this invention of an Electromagnetic Simulation software emulation gained, yet another embodiment of the invention and the present invention more " gain " of the micro-strip paster antenna of an embodiment along with the schematic diagram of frequency change situation;
Fig. 8 C be show respectively the micro-strip paster antenna of micro-strip paster antenna by further embodiment of this invention of an Electromagnetic Simulation software emulation gained, yet another embodiment of the invention and the present invention more " the axiation rate " of the micro-strip paster antenna of an embodiment along with the schematic diagram of frequency change situation.
The main element symbol description
11,21,331,631,731 radome bodies
12,22,332,632,732 first gain patterns
13,23,333,633,733 second gain patterns
111,211,3311,631 1,7311 upper surfaces
112,212,3312,6312,7312 lower surfaces
121,221,3321,6321,7,321 first ring-like gain units
131,231,3331,6331,7,331 second ring-like gain units
122 first monocycles
132 second monocycles
123、133、225、226、235、236、3325、3326、3335、3336、6325、
6326,6335,6336,7325,7326,7335,7336 breach
222,3322,6322,7,322 first separate type toroidal resonators
232,3332,6332,7,332 second separate type toroidal resonators
223,3323,6323,7,323 first conducting rings
224,3324,6324,7,324 second conducting rings
233,3333,6333,7333 the 3rd conducting rings
234,3334,6334,7334 the 4th conducting rings
31,61,71 substrates
32,62,72 antenna bodies
33,63,73 radomes
311,611,711 surfaces
Embodiment
Shown in Figure 1A, Figure 1B and Fig. 1 C, the radome of one embodiment of the invention comprises: a radome body 11, one first gain pattern 12 and one second gain pattern 13.Wherein, radome body 11 has a upper surface 111 and a lower surface 112, and the first gain pattern 12 is to be arranged at upper surface 111 and to comprise a plurality of first ring-like gain unit 121, the second gain patterns 13 to be arranged at lower surface 112 and to comprise a plurality of second ring-like gain unit 131.
In the present embodiment, radome body 11 is to be a FR-4 substrate, and its thickness h is 0.8mm.In addition, the first gain pattern 12 comprises 25 the first ring-like gain units 121, and these 25 the first ring-like gain units 121 are the upper surfaces 111 that are arranged in radome body 11 in the mode of 5X5 array.The second gain pattern 13 also comprises 25 the second ring-like gain units 131, and these 25 the second ring-like gain units 131 also are arranged in the lower surface 112 of radome body 11 in the mode of 5X5 array.And shown in Figure 1A, aforesaid the first gain pattern 12 and the second gain pattern 13 are upper surface 111 and the lower surfaces 112 that mutually are arranged at respectively accordingly radome body 11.
On the other hand, shown in Figure 1B and Fig. 1 C, the first ring-like gain unit 121 be for one first monocycle, 122, the second 131 of ring-like gain units be one second monocycle 132.On the other hand, aforesaid the first monocycle 122 and the second monocycle 132 have respectively a breach 123,133, and the opening direction of the first monocycle 122 (being the directions X among Figure 1B) is orthogonal with the opening direction (being the Y-direction among Fig. 1 C) of the second monocycle 132.
Should be noted, although in the present embodiment, the first monocycle 122 and the second monocycle 132 are straight-flanked ring, and radome of the present invention still can have according to different application demands, and have difform the first monocycle 122 and the second monocycle 132, such as annulus or elliptical ring.
Shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, the radome of another embodiment of the present invention comprises: a radome body 21, one first gain pattern 22 and one second gain pattern 23.Wherein, radome body 21 has a upper surface 211 and a lower surface 212, and the first gain pattern 22 is to be arranged at upper surface 211 and to comprise a plurality of first ring-like gain unit 221, the second gain patterns 23 to be arranged at lower surface 212 and to comprise a plurality of second ring-like gain unit 231.
In the present embodiment, radome body 21 is to be a FR-4 substrate, and its thickness h is 0.8mm.In addition, the first gain pattern 22 comprises 25 the first ring-like gain units 221, and these 25 the first ring-like gain units 221 are the upper surfaces 211 that are arranged in radome body 21 in the mode of 5X5 array.The second gain pattern 23 also comprises 25 the second ring-like gain units 231, and these 25 the second ring-like gain units 231 also are arranged in the lower surface 212 of radome body 21 in the mode of 5X5 array.And shown in Fig. 2 A, aforesaid the first gain pattern 22 and the second gain pattern 23 are upper surface 211 and the lower surfaces 212 that mutually are arranged at respectively accordingly radome body 21.
On the other hand, shown in Fig. 2 B and Fig. 2 C, the first ring-like gain unit 221 be for one first separate type toroidal resonator, 222, the second 231 of ring-like gain units be one second separate type toroidal resonator 232.In addition, aforesaid each first separate type toroidal resonator 222 all comprises one first conducting ring 223 and one second conducting ring 224, and the first conducting ring 223 is that the second conducting ring 224 is surrounded in it.Aforesaid each second separate type toroidal resonator 232 all comprises one the 3rd conducting ring 233 and one the 4th conducting ring 234, and the 3rd conducting ring 233 is that the 4th conducting ring 234 is surrounded in it.
Shown in Fig. 2 B and Fig. 2 C, the first conducting ring 223 and one second conducting ring 224 have respectively a breach 225,226, and the opening direction of the first conducting ring 223 is opposite with the opening direction of the second conducting ring 224; The 3rd conducting ring 233 and the 4th conducting ring 234 have respectively a breach 235,236, and the opening direction of the 3rd conducting ring 233 is opposite with the opening direction of the 4th conducting ring 234.In addition, the opening direction of the first conducting ring 223 (being the directions X among Fig. 2 B) is orthogonal with the opening direction (being the Y-direction among Fig. 2 C) of the 3rd conducting ring 233.
Should be noted, although in the present embodiment, the first conducting ring 223, the second conducting ring 224, the 3rd conducting ring 233 and the 4th conducting ring 234 are straight-flanked ring, but radome of the present invention still can be according to different application demands, and have difform the first conducting ring 223, the second conducting ring 224, the 3rd conducting ring 233 and the 4th conducting ring 234, such as annulus or elliptical ring.
As shown in Figure 3A, the micro-strip paster antenna of further embodiment of this invention comprises: a substrate 31, an antenna body 32 and a radome 33.Wherein, antenna body 32 is the surfaces 311 that are arranged at substrate 31, and 33 of radomes are arranged on the antenna body 32, and so that antenna body 32 between substrate 31 and radome 33.In addition, in the present embodiment, substrate 31 is to be a FR-4 substrate, and its thickness H is 1.6mm; Radome 33 also is a FR-4 substrate, and its thickness h is 0.8mm.In addition, antenna body 32 and radome 33 sandwiched air layers (air layer) are between the two, and its thickness h g is 13mm.
Shown in Fig. 3 B, antenna body 32 is the surfaces 311 that are arranged at substrate 31, and because antenna body 32 has rescinded angle, so the micro-strip paster antenna of further embodiment of this invention is emission or receives a Circular Polarisation high-frequency signal.As for the numerical value of every label of the size that be used for to show antenna body 32 and substrate 31 among Fig. 3 B, then as shown in table 1 below:
Table 1
| Label | Size (mm) | Label | Size (mm) | Label | Size (mm) |
| GL | 69 | L | 29 | Ls | 20 |
| |
2 | |
4 |
Shown in Fig. 3 A, Fig. 3 C and Fig. 3 D, radome 33 comprises a radome body 331, one first gain pattern 332 and one second gain pattern 333.Wherein, radome body 331 has a upper surface 3311 and a lower surface 3312, and the first gain pattern 332 is to be arranged at upper surface 3311 and to comprise a plurality of first ring-like gain unit 3321, the second gain patterns 333 to be arranged at lower surface 3312 and to comprise a plurality of second ring-like gain unit 3331.
In addition, in the present embodiment, the first gain pattern 332 comprises 25 the first ring-like gain units 3321, and these 25 the first ring-like gain units 3321 are the upper surfaces 3311 that are arranged in radome body 331 in the mode of 5X5 array.The second gain pattern 333 also comprises 25 the second ring-like gain units 3331, and these 25 the second ring-like gain units 3331 also are arranged in the lower surface 3312 of radome body 331 in the mode of 5X5 array.And as shown in Figure 3A, the first gain pattern 332 and the second gain pattern 333 are upper surface 3311 and the lower surfaces 3312 that mutually are arranged at respectively accordingly radome body 331.
On the other hand, shown in Fig. 3 C and Fig. 3 D, the first ring-like gain unit 3321 be for one first separate type toroidal resonator, 3322, the second 3331 of ring-like gain units be one second separate type toroidal resonator 3332.In addition, aforesaid each first separate type toroidal resonator 3322 all comprises one first conducting ring 3323 and one second conducting ring 3324, and the first conducting ring 3323 is that the second conducting ring 3324 is surrounded in it.Aforesaid each second separate type toroidal resonator 3332 all comprises one the 3rd conducting ring 3333 and one the 4th conducting ring 3334, and the 3rd conducting ring 3333 is that the 4th conducting ring 3334 is surrounded in it.And the first adjacent separate type toroidal resonator 3322 is separated by one apart from s, and the second adjacent separate type toroidal resonator 3332 also is separated by one apart from s.
Shown in Fig. 3 C and Fig. 3 D, the first conducting ring 3323 and one second conducting ring 3324 have respectively a breach 3325,3326, and the opening direction of the first conducting ring 3323 is opposite with the opening direction of the second conducting ring 3324; The 3rd conducting ring 3333 and the 4th conducting ring 3334 have respectively a breach 3335,3336, and the opening direction of the 3rd conducting ring 3333 is opposite with the opening direction of the 4th conducting ring 3334.In addition, the opening direction of the first conducting ring 3323 (being the directions X among Fig. 3 C) is orthogonal with the opening direction (being the Y-direction among Fig. 3 D) of the 3rd conducting ring 3333.
Should be noted, although in the present embodiment, the first conducting ring 3323, the second conducting ring 3324, the 3rd conducting ring 3333 and the 4th conducting ring 3334 are straight-flanked ring, but radome of the present invention still can be according to different application demands, and have difform the first conducting ring 3323, the second conducting ring 3324, the 3rd conducting ring 3333 and the 4th conducting ring 3334, such as annulus or elliptical ring.
Fig. 3 E is the numerical value that shows every label of the size that is used for sign the first separate type toroidal resonator 3322, and is as shown in table 2 below respectively:
Table 2
| r | 3.1 | c | 0.4 | d | 0.4 |
| g | 0.2 | s | 0.4 | s | 0.4 |
In addition, aforesaid the second separate type toroidal resonator 3332 also has the size identical with the first separate type toroidal resonator 3322, and both difference only are that the opening direction of the conducting ring that they had respectively is different.
Therefore, thickness (H=1.5mm), the thickness (hg=13mm) of air layer (air layer) and the thickness (h=0.8mm) of radome 33 at the thickness substrate 31 of the micro-strip paster antenna of further embodiment of this invention, be 15.3mm, far below known thickness with micro-strip paster antenna of a multilayer dielectric layer.In addition, in the present embodiment, the thickness of air layer is about 0.1 times of wavelength of the high-frequency signal (frequency is about 2.5GHz) that can launch or accept at the micro-strip paster antenna of further embodiment of this invention, significantly less than the thickness of the air layer of known micro-strip paster antenna institute tool with a multilayer dielectric layer.
Fig. 4 A and Fig. 4 B are that " the axiation rate " that the micro-strip paster antenna of a Circular Polarisation high-frequency signal can be launched or receive to demonstration by one of Electromagnetic Simulation software emulation gained reaches " return loss " along with the schematic diagram of frequency change situation.Wherein, all substrate and the antenna body with the micro-strip paster antenna institute tool of further embodiment of this invention is identical for the material of the substrate of this micro-strip paster antenna and antenna body and size.Wherein, curve A is the situation that " the axiation rate " of demonstration emulation gained changes along with the frequency of Circular Polarisation high-frequency signal, and curve B then is the situation that " return loss " of demonstration emulation gained changes along with the frequency of Circular Polarisation high-frequency signal.
In addition, can find out from Fig. 4 A and Fig. 4 B, the resonance frequency of this micro-strip paster antenna (do not have radome) is about 2.495GHz, and its 10dB return loss frequency range is about 0.12GHz, and its 3dB axiation rate frequency range is about 0.2GHz.In addition, the flat gain (flat gain) in the frequency range of this micro-strip paster antenna between 2.47GHz to 2.52GHz is 2.8dBic.
On the other hand, Fig. 5 A, Fig. 5 B and Fig. 5 C show that then " return loss ", " gain " of the micro-strip paster antenna of further embodiment of this invention of passing through respectively an Electromagnetic Simulation software emulation and actual measurement gained reach " axiation rate " along with the schematic diagram of frequency change situation.Wherein, curve C among Fig. 5 A is the situation that " return loss " of demonstration emulation gained changes along with the frequency of Circular Polarisation high-frequency signal, and curve D then is the situation that shows that actual " return loss " that measures gained changes along with the frequency of Circular Polarisation high-frequency signal.Curve E among Fig. 5 B is the situation that " the axiation rate " of demonstration emulation gained changes along with the frequency of Circular Polarisation high-frequency signal, and curve F then is the situation that shows that actual " the axiation rate " that measures gained changes along with the frequency of Circular Polarisation high-frequency signal.Curve G among Fig. 5 C is the situation that " gain " of demonstration emulation gained changes along with the frequency of Circular Polarisation high-frequency signal, and curve H then is the situation that shows that actual " gain " that measures gained changes along with the frequency of Circular Polarisation high-frequency signal.
In addition, can find out from 5A, Fig. 5 B and Fig. 5 C, the 10dB return loss frequency range of the micro-strip paster antenna of further embodiment of this invention (tool radome) is about 0.146GHz, its 3dB axiation rate frequency range is about 0.025GHz, and its maximum gain is near 7.1dBic (occurring in frequency is the 2.48GHz).And actual measure " resonance frequency " of gained is a little more than the numerical value of emulation gained, and " yield value " of actual measurement gained is also a little more than the numerical value of simulating gained.
Therefore, the micro-strip paster antenna of further embodiment of this invention is by arranging a radome, can promote its yield value (being promoted to 7.1dBic from 2.8dBic) and keep the waveform of its circularly polarized high-frequency signal of launching or receiving.
As shown in Figure 6A, the micro-strip paster antenna of yet another embodiment of the invention comprises: a substrate 61, an antenna body 62 and a radome 63.Wherein, antenna body 62 is the surfaces 611 that are arranged at substrate 61, and 63 of radomes are arranged on the antenna body 62, and so that antenna body 62 between substrate 61 and radome 63.In addition since the size of the antenna body 62 of the micro-strip paster antenna of yet another embodiment of the invention and pattern all the antenna body 32 with the micro-strip paster antenna of further embodiment of this invention is identical, just repeat no more at this.
On the other hand, the composition of the radome 63 of the micro-strip paster antenna of yet another embodiment of the invention is identical with the radome 33 of the micro-strip paster antenna of further embodiment of this invention, both difference only reach pattern (such as the opening direction) difference of " the second separate type toroidal resonator " at " the first separate type toroidal resonator " that they had respectively, but it is still identical that " the first separate type toroidal resonator " that both had respectively reaches the size of " the second separate type toroidal resonator ", and table 2 is described as the aforementioned.
Shown in Fig. 6 B, be positioned at radome 63 radome body 631 upper surface 6311 first the gain pattern 632 be to comprise a plurality of first ring-like gain unit 6321, and each first ring-like gain unit 6321 is to be one first separate type toroidal resonator 6322, and the first adjacent separate type toroidal resonator 6322 also is separated by one apart from s.And the first separate type toroidal resonator 6322 comprises one first conducting ring 6323 and one second conducting ring 6324, and the first conducting ring 6323 is that the second conducting ring 6324 is surrounded in it.In addition, the first conducting ring 6323 and one second conducting ring 6324 have respectively a breach 6325,6326, and the opening direction of the first conducting ring 6323 is opposite with the opening direction of the second conducting ring 6324, and the opening direction of the first conducting ring 6323 also is parallel to Y-direction among Fig. 6 B.
On the other hand, be positioned at radome 63 radome body 631 lower surface 6312 second the gain pattern 633 be to comprise a plurality of second ring-like gain unit 6331, and each second ring-like gain unit 6331 is to be one second separate type toroidal resonator 6332, and the second adjacent separate type toroidal resonator 6332 also is separated by one apart from s.And the second separate type toroidal resonator 6332 comprises one the 3rd conducting ring 6333 and one the 4th conducting ring 6334, and the 3rd conducting ring 6333 is that the 4th conducting ring 6334 is surrounded in it.In addition, the 3rd conducting ring 6333 and one the 4th conducting ring 6334 have respectively a breach 6335,6336, and the opening direction of the 3rd conducting ring 6333 is opposite with the opening direction of the 4th conducting ring 6334, and the opening direction of the 3rd conducting ring 6333 also is parallel to Y-direction among Fig. 6 C.That is to say, in the radome 63 of the micro-strip paster antenna of yet another embodiment of the invention, the opening direction of the first conducting ring 6323 of its first separate type toroidal resonator 6322 (Y-direction among Fig. 6 B) is the opening direction (Y-direction among Fig. 6 C) that is parallel to the 3rd conducting ring 6333 of its second separate type toroidal resonator 6332.
Shown in Fig. 7 A, the present invention more micro-strip paster antenna of an embodiment comprises: a substrate 71, an antenna body 72 and a radome 73.Wherein, antenna body 72 is the surfaces 711 that are arranged at substrate 71, and 73 of radomes are arranged on the antenna body 72, and so that antenna body 72 between substrate 71 and radome 73.In addition, the present invention more the size of the antenna body 72 of the micro-strip paster antenna of an embodiment and pattern all the antenna body 32 with the micro-strip paster antenna of further embodiment of this invention is identical, just repeat no more at this.
On the other hand, the present invention more composition of the radome 73 of the micro-strip paster antenna of an embodiment is identical with the radome 33 of the micro-strip paster antenna of further embodiment of this invention, both difference only reach pattern (such as the opening direction) difference of " the second separate type toroidal resonator " at " the first separate type toroidal resonator " that they had respectively, but it is still identical that " the first separate type toroidal resonator " that both had respectively reaches the size of " the second separate type toroidal resonator ", and table 2 is described as the aforementioned.
Shown in Fig. 7 B, be positioned at radome 73 radome body 731 upper surface 7311 first the gain pattern 732 be to comprise a plurality of first ring-like gain unit 7321, and each first ring-like gain unit 7321 is to be one first separate type toroidal resonator 7322, and the first adjacent separate type toroidal resonator 7322 also is separated by one apart from s.And the first separate type toroidal resonator 7322 comprises one first conducting ring 7323 and one second conducting ring 7324, and the first conducting ring 7323 is that the second conducting ring 7324 is surrounded in it.In addition, the first conducting ring 7323 and one second conducting ring 7324 have respectively a breach 7325,7326, and the opening direction of the first conducting ring 7323 is opposite with the opening direction of the second conducting ring 7324, and the opening direction of the first conducting ring 7323 also is parallel to directions X among Fig. 7 B.
On the other hand, be positioned at radome 73 radome body 731 lower surface 7312 second the gain pattern 733 be to comprise a plurality of second ring-like gain unit 7331, and each second ring-like gain unit 7331 is to be one second separate type toroidal resonator 7332, and the second adjacent separate type toroidal resonator 7332 also is separated by one apart from s.And the second separate type toroidal resonator 7332 comprises one the 3rd conducting ring 7333 and one the 4th conducting ring 7334, and the 3rd conducting ring 7333 is that the 4th conducting ring 7334 is surrounded in it.In addition, the 3rd conducting ring 7333 and one the 4th conducting ring 7334 have respectively a breach 7335,7336, and the opening direction of the 3rd conducting ring 7333 is opposite with the opening direction of the 4th conducting ring 7334, and the opening direction of the 3rd conducting ring 7333 also is parallel to directions X among Fig. 7 C.That is to say, more in the radome 73 of the micro-strip paster antenna of an embodiment, the opening direction of the first conducting ring 7323 of its first separate type toroidal resonator 7322 (directions X among Fig. 7 B) is the opening direction (directions X among Fig. 7 C) that is parallel to the 3rd conducting ring 7333 of its second separate type toroidal resonator 7332 in the present invention.
Fig. 8 A, Fig. 8 B and Fig. 8 C show that respectively more " return loss ", " gain " of the micro-strip paster antenna of an embodiment reach " axiation rate " along with the schematic diagram of frequency change situation for the micro-strip paster antenna of micro-strip paster antenna by further embodiment of this invention of an Electromagnetic Simulation software emulation gained, yet another embodiment of the invention and the present invention.Wherein, curve I among Fig. 8 A is the situation that " return loss " of the micro-strip paster antenna emulation gained of demonstration further embodiment of this invention changes along with the frequency of Circular Polarisation high-frequency signal, curve J is the situation that shows that " return loss " of the micro-strip paster antenna emulation gained of yet another embodiment of the invention changes along with the frequency of Circular Polarisation high-frequency signal, and curve K shows the more situation that changes along with the frequency of Circular Polarisation high-frequency signal of " return loss " of the micro-strip paster antenna emulation gained of an embodiment of the present invention.
Curve L among Fig. 8 B is the situation that " gain " of the micro-strip paster antenna emulation gained of demonstration further embodiment of this invention changes along with the frequency of Circular Polarisation high-frequency signal, curve M is the situation that shows that " gain " of the micro-strip paster antenna emulation gained of yet another embodiment of the invention changes along with the frequency of Circular Polarisation high-frequency signal, and curve N is the more situation that changes along with the frequency of Circular Polarisation high-frequency signal of " gain " of the micro-strip paster antenna emulation gained of an embodiment of demonstration the present invention.
Curve among Fig. 8 C is the situation that " the axiation rate " of the micro-strip paster antenna emulation gained of demonstration further embodiment of this invention changes along with the frequency of Circular Polarisation high-frequency signal, curve P is the situation that shows that " the axiation rate " of the micro-strip paster antenna emulation gained of yet another embodiment of the invention changes along with the frequency of Circular Polarisation high-frequency signal, and curve Q shows the more situation that changes along with the frequency of Circular Polarisation high-frequency signal of " the axiation rate " of the micro-strip paster antenna emulation gained of an embodiment of the present invention.
From Fig. 8 A, can find out, " return loss " of the micro-strip paster antenna of further embodiment of this invention " return loss " than the micro-strip paster antenna of other two embodiment in the frequency range of 2.46GHz to 2.49GHz is good, then can find out from Fig. 8 B, " gain " of the micro-strip paster antenna of further embodiment of this invention more in whole frequency range (2.3GHz to 2.7GHz) all " gain " than the micro-strip paster antenna of other two embodiment be good.At last, can find out from Fig. 8 C, the Circular Polarisation characteristic of the micro-strip paster antenna of further embodiment of this invention is better.
In sum, by upper surface and lower surface in the radome body of radome of the present invention institute tool one first gain pattern and one second gain pattern are set respectively, and this first gain pattern and this second gain pattern comprises respectively the mode of a plurality of first ring-like gain unit and a plurality of the second ring-like gain units, radome of the present invention just can so that the yield value of a micro-strip paster antenna significantly promote.In addition, because the thickness of radome of the present invention is no better than the thickness (approximately 0.8mm) of its radome body, remarkable thickness less than well-known antenna cover institute tool, so a micro-strip paster antenna (being micro-strip paster antenna of the present invention) with radome of the present invention can promoting its yield value and keeping under the better Circular Polarisation characteristic (when primary antenna is Circular Polarisation), still be kept a thinner thickness.
Above-described embodiment only is to give an example for convenience of description, and the interest field that the present invention advocates should be as the criterion so that the protection range of claim is described certainly, but not only limits to above-described embodiment.
Claims (5)
1. a radome is characterized in that, comprising:
One radome body has a upper surface and a lower surface;
One first gain pattern is arranged at this upper surface and comprises a plurality of first ring-like gain unit; And
One second gain pattern is arranged at this lower surface and comprises a plurality of second ring-like gain unit;
Wherein, the described first ring-like gain unit is a plurality of the first separate type toroidal resonators, and the described second ring-like gain unit then is a plurality of the second separate type toroidal resonators; Each first separate type toroidal resonator comprises respectively one first conducting ring and one second conducting ring, this first conducting ring and this second conducting ring have respectively an opening, and the opening direction of this first conducting ring is opposite with the opening direction of this second conducting ring, and this first conducting ring is surrounded in it this second conducting ring; Each second separate type toroidal resonator comprises respectively one the 3rd conducting ring and one the 4th conducting ring, the 3rd conducting ring and the 4th conducting ring have respectively an opening, and the opening direction of the 3rd conducting ring is opposite with the opening direction of the 4th conducting ring, and the 3rd conducting ring is surrounded in it the 4th conducting ring; The opening direction of this first conducting ring is mutually vertical with the 3rd conducting ring.
2. radome as claimed in claim 1 is characterized in that, described the first conducting ring, described the second conducting ring, described the 3rd conducting ring and described the 4th conducting ring are the rectangular conductive ring.
3. a micro-strip paster antenna is characterized in that, comprising:
One substrate;
One antenna body is arranged at the surface of this substrate; And
One radome is arranged on this antenna body, and this antenna body is between this substrate and this radome;
Wherein, this radome comprises a radome body with a upper surface and a lower surface, one first gain pattern and one second gain pattern; This first gain pattern is arranged at this upper surface and comprises a plurality of first ring-like gain unit, and this second gain pattern then is arranged at this lower surface and comprises a plurality of second ring-like gain unit, a sandwiched air layer between this antenna body and this radome;
Wherein, these first ring-like gain units are a plurality of the first separate type toroidal resonators, and these second ring-like gain units then are a plurality of the second separate type toroidal resonators; Each first separate type toroidal resonator comprises respectively one first conducting ring and one second conducting ring, this first conducting ring and this second conducting ring have respectively an opening, and the opening direction of this first conducting ring is opposite with the opening direction of this second conducting ring, and this first conducting ring is that this second conducting ring is surrounded in it; Each second separate type toroidal resonator comprises respectively one the 3rd conducting ring and one the 4th conducting ring, the 3rd conducting ring and the 4th conducting ring have respectively an opening, and the opening direction of the 3rd conducting ring is opposite with the opening direction of the 4th conducting ring, and the 3rd conducting ring is that the 4th conducting ring is surrounded in it; The opening direction of this first conducting ring is mutually vertical with the 3rd conducting ring.
4. micro-strip paster antenna as claimed in claim 3 is characterized in that, described micro-strip paster antenna is emission one Circular Polarisation high-frequency signal.
5. micro-strip paster antenna as claimed in claim 3 is characterized in that, described the first conducting ring, described the second conducting ring, described the 3rd conducting ring and described the 4th conducting ring are the rectangular conductive ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810173869 CN101728641B (en) | 2008-10-29 | 2008-10-29 | Antenna cover and microstrip patch antenna containing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810173869 CN101728641B (en) | 2008-10-29 | 2008-10-29 | Antenna cover and microstrip patch antenna containing same |
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| Publication Number | Publication Date |
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| CN101728641A CN101728641A (en) | 2010-06-09 |
| CN101728641B true CN101728641B (en) | 2013-05-01 |
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| CN 200810173869 Expired - Fee Related CN101728641B (en) | 2008-10-29 | 2008-10-29 | Antenna cover and microstrip patch antenna containing same |
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| CN102882013A (en) * | 2012-09-26 | 2013-01-16 | 华为技术有限公司 | Low-profile broadband antenna array and antenna |
| CN107069222B (en) * | 2017-03-02 | 2020-01-24 | 上海汇珏网络通信设备股份有限公司 | Directional distribution antenna |
| CN113937511B (en) * | 2021-09-30 | 2023-10-27 | 联想(北京)有限公司 | Programmable large-scale antenna |
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