CN202855898U - Highly stable circular polarization microstrip antenna with multipath resistance, multi-feed source resistance, multi-wave band resistance, and wide wave beam resistance - Google Patents
Highly stable circular polarization microstrip antenna with multipath resistance, multi-feed source resistance, multi-wave band resistance, and wide wave beam resistance Download PDFInfo
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- CN202855898U CN202855898U CN 201220432444 CN201220432444U CN202855898U CN 202855898 U CN202855898 U CN 202855898U CN 201220432444 CN201220432444 CN 201220432444 CN 201220432444 U CN201220432444 U CN 201220432444U CN 202855898 U CN202855898 U CN 202855898U
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Abstract
Disclosed is a highly stable circular polarization microstrip antenna with multipath resistance, multi-feed source resistance, multi-wave band resistance, and wide wave beam resistance, comprising an antenna housing and a three dimensional metal choke coil, wherein the three dimensional metal choke coil comprises a central pedestal, a first choke coil, a second choke coil, a third choke coil, and a fourth choke coil; the antenna housing is arranged upon a central pedestal; the central pedestal is internally provided with a first power divider and a second power divider; a first and second radiation antennas are arranged inside the antenna housing and upon the central pedestal, with the first and second radiation antennas being fixed via hollow short circuit screws; a first coaxial cable is arranged between the first radiation antenna and the central pedestal; one end of the inner core is connected with the radiation fin of the first radiation antenna, with the other end of the inner core being connected with the first branch of the first power divider; one end of the shielding layer is connected with the first radiation antenna, with the other end thereof being connected with the first power divider; a fifth coaxial cable is arranged between the second radiation antenna and the central pedestal, with the fifth coaxial cable passing through the hollow short circuit screws; the inner core is respectively connected with the second radiation antenna and the first branch of the second power divider; and the shielding layer is respectively connected with the radiation sheet of the second radiation antenna and the second power divider.
Description
Technical field
The present invention relates to a kind of double frequency high-isolation broad beam high stable phase center antenna that is suitable for geodesic survey type satellite navigation ground receiving terminal, the directed satellite navigation of hi-Fix ground receiving terminal, its exemplary operation frequency range is L and S frequency range, the remarkable advantage such as have compact conformation, standing wave is little, axial ratio is little, axial ratio bandwidth is wide, the double frequency isolation is high, phase center is overstable in the broad beam scope.
Background technology
At present, the GPS (Global Position System) of the U.S., the Beidou satellite navigation system of China, Muscovite glonass system and Europe Galileo navigation system under preparation consist of global four large satellite navigation system.This four large system can provide the location of general precision (being generally 10 meter levels), and the location of high accuracy (being generally grade) also can be provided.The latter mainly is widely used in geodesy and association area thereof, also is widely used in the directed field of hi-Fix.And wherein antenna technology belongs to core technology, and common antenna can't be realized millimetre-sized superhigh precision locating and orienting because the unstable meeting of its phase center brings Centimeter Level and above error.
The GPS (Global Position System) that the current satellite navigation system that can realize the superhigh precision locating and orienting mainly is the U.S. and the dipper system of China, existing high stable phase center antenna mainly for U.S.'s GPS (Global Position System) mainly comprises two kinds of forms: adopt little band laminated patch antenna of the many feeds of axial symmetry, such as the Zephyr measurement type antenna of Trimble company; If the multi-arm snail slot antenna of " Hot Wheels " technology of employing is Novatel GPS-600 antenna.The former keeps the axial symmetry of antenna by axisymmetric to Feed Design, and feed is more, and symmetry is better, and Phase center stability is higher, and more complicated when feeding network, and bandwidth is narrower, and phase center stability is lower, and is difficult for regulating; The latter guarantees antenna high stable phase center by a plurality of around axisymmetric slit spiral arm, and feeding network adopts serial row ripple feed microstrip line circuit, and structure is comparatively simple, but its phase center stability is lower, and is difficult for regulating.
Summary of the invention
The invention provides a kind ofly have compact conformation, standing wave is little, axial ratio is little, axial ratio bandwidth is wide, the double frequency isolation high, phase center is overstable in the broad beam scope, deviation in roundness is low, many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna of being easy to regulate.
The present invention adopts following technical scheme:
A kind of many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna, comprise: radome and the 3-dimensional metal choke that disturbs for reflected signal and strong inhibition multipath, described 3-dimensional metal choke comprises the central seat that highly equates, the first choke, the second choke, the 3rd choke and the 4th choke, the first choke, the second choke, the 3rd choke and the 4th choke are concentric with central seat, and, the 3rd choke is positioned at the 4th choke, the second choke is positioned at the 3rd choke, the first choke is positioned at the second choke, central seat is positioned at the first choke, central seat, the first choke, the second choke, the position of the 3rd choke and the 4th choke is downward along the short transverse from coil to coil, the first choke, the second choke, the 3rd choke and the 4th choke are metal cylinder, described radome is located on the central seat of 3-dimensional metal choke, in the central seat of 3-dimensional metal choke, be provided with the first power splitter and the second power splitter, in radome and in the central seat of 3-dimensional metal choke, be provided with the first radiating antenna of mutually being superimposed and the second radiating antenna and be fixed on the central seat of 3-dimensional metal choke by the hollow short circuit screw that passes the first radiating antenna and the second radiating antenna center, between the central seat of the first radiating antenna and 3-dimensional metal choke, be provided with the first coaxial cable, one end of the inner core of the first coaxial cable is connected with the radiation fin of the first radiating antenna, the other end of the inner core of the first coaxial cable is connected with the first branch road of the first power splitter, one end of the screen of the first coaxial cable is connected with the ground of the first radiating antenna, and the other end of the screen of the first coaxial cable is connected with the ground of the first power splitter; Between the central seat of the second radiating antenna and 3-dimensional metal choke, be provided with the 5th coaxial cable and the 5th coaxial cable and pass hollow short circuit screw, one end of the inner core of the 5th coaxial cable is connected with the ground of the second radiating antenna, the other end of the inner core of the 5th coaxial cable is connected with the first branch road of the second power splitter, one end of the screen of the 5th coaxial cable is connected with the radiation fin of the second radiating antenna, and the other end of the screen of the 5th coaxial cable is connected with the ground of the second power splitter.
Compared with prior art, the present invention has following advantage:
Adopt double-deck little belt substrate stepped construction to realize double frequency round polarized high-isolation high stable phase center antenna among the present invention, adopt many feeds feed (representative value is four feeds) structure on the upper strata for the upper strata radiating antenna especially, it is inner that the feed coaxial cable traverses to the 3-dimensional metal choke by hollow metal short circuit screw inside, and then be connected respectively with four output ports of the 21 minute four power splitters, at last by four power splitter main roads output in the 21 minute; Adopt many feeds feed (representative value is four feeds) structure for lower floor's radiating antenna in lower floor, four feeds are connected with four output ports of the one one minute four power splitters respectively, at last by four power splitter main roads output in the one one minute; In this structure, because the feed inner core of upper strata radiating antenna need not to pass through lower floor's radiating antenna dielectric material, but pass through by central hollow short circuit screw inside, thereby realized the height isolation feed of two antennas, effectively reduce two mutual coupling between the antenna, the standing wave that has greatly improved the isolation between the antenna that works in two working frequency points and passed through the radiating antenna of four power splitters connection in the one one minute.
Can all carry out the inner hole wall metallization to first medium layer, inner all the feed perforation of second medium layer among the present invention, the coaxial inner core of feed can effectively weld first medium layer, inner all the feed perforation of second medium layer, thereby has significantly improved the feed connection reliability.
Among the present invention the second metal level, the 4th metal level periphery are provided with metal lattice.Because high stable phase center antenna requires the All Ranges antenna in the work wave beam that consistent phase characteristic is arranged, yet usually owing to dielectric material processing technology reason, the dielectric constant of dielectric material itself is difficult to accomplish in full accord, therefore according to actual test result, by the metal lattice that increases is carved except regulating, improve the consistency of antenna phase center and gain pattern and reduce the axial ratio index.
The 3-dimensional metal choke that adopts among the present invention, by adopting a plurality of chokes of different depth, differing heights (with respect to the central seat upper surface of 3-dimensional metal choke pedestal), can effectively reduce the interference of multipath signal, improve simultaneously the cross-polarization performance of antenna, and significantly do not reduced the phase characteristic of antenna.
Description of drawings
After reading description by reference to the accompanying drawings, above-mentioned purpose of the present invention, further feature and advantage all can be more obvious, wherein:
Fig. 1 is the whole front sectional elevation of antenna of the present invention.
Fig. 2 is antenna unitary side pseudosection of the present invention.
Fig. 3 is three-dimensional choke vertical view of the present invention.
Fig. 4 is the first metal layer vertical view of the present invention.
Fig. 5 is first medium layer vertical view of the present invention.
Fig. 6 is the second metal level vertical view of the present invention.
Fig. 7 is the 3rd metal level vertical view of the present invention.
Fig. 8 is second medium layer vertical view of the present invention.
Fig. 9 is the 4th metal level vertical view of the present invention.
Figure 10 is first day phase of line directional diagram of the present invention.
Figure 11 is the first antenna elevation angle 60 of the present invention gain pattern when spending.
Figure 12 is the first antenna azimuth 0 of the present invention gain pattern when spending.
Figure 13 is first day bobbin specific characteristic of the present invention.
Figure 14 is second day phase of line directional diagram of the present invention.
Figure 15 is the second antenna elevation angle 60 of the present invention gain pattern when spending.
Figure 16 is the second antenna azimuth 0 of the present invention gain pattern when spending.
Figure 17 is second day bobbin specific characteristic of the present invention.
Figure 18 is the isolation of the first antenna of the present invention and the second antenna.
Figure 19 is the one one minute of the present invention four power divider structure schematic diagrams.
Figure 20 is the vertical view of the one one minute of the present invention four power splitters.
Figure 21 is the 21 minute of the present invention four power divider structure schematic diagrams.
Figure 22 is the vertical view of the 21 minute of the present invention four power splitters.
Wherein, 1 is radome, 2 is hollow metal short circuit screw, 3 is the 4th metal level, 4 is the second medium layer, 6 is the 3rd metal level, 7 is the second metal level, 8 is the first medium layer, 9 is the first metal layer, 11-1,11-2,11-3 and 11-4 are four feed mouths of the first antenna, 10-1,10-2,10-3 and 10-4 are four feed mouths of the second antenna, 13 is the one one minute four power splitter main road ports, 13-1,13-2,13-3 and 13-4 are four tributary ports of the one one minute four power splitters, the one one minute four power splitter ground of 13-0,13-5 is the one one minute four power splitter media, 13-6 is the one one minute four power divider network layers, 14 is the 21 minute four power splitter main road ports, 14-1,14-2,14-3 and 14-4 are the 21 minute four power splitter ground of four tributary port 14-0 of the 21 minute four power splitters, and 14-5 is the 21 minute four power splitter media, 14-6 is the 21 minute four power divider network layers, 15 is the central seat of 3-dimensional metal choke, and 16 is the first choke of 3-dimensional metal choke, and 17 is the second choke of 3-dimensional metal choke, 18 is the 3rd choke of 3-dimensional metal choke, and 19 is the 4th choke of 3-dimensional metal choke.
Embodiment
A kind of many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna, comprise: radome 1 and be used for reflected signal and suppress the 3-dimensional metal choke that multipath disturbs, described 3-dimensional metal choke comprises the central seat 15 that highly equates, the first choke 16, the second choke 17, the 3rd choke 18 and the 4th choke 19, the first choke, the second choke, the 3rd choke and the 4th choke are concentric with central seat 15, and, the 3rd choke is positioned at the 4th choke, the second choke is positioned at the 3rd choke, the first choke is positioned at the second choke, central seat 15 is positioned at the first choke, central seat 15, the first choke, the second choke, the position of the 3rd choke and the 4th choke is downward along the short transverse from coil to coil, the first choke, the second choke, the 3rd choke and the 4th choke are metal cylinder, described radome 1 is located on the 3-dimensional metal choke central seat 15, in 3-dimensional metal choke central seat 15, be provided with the first power splitter 13 and the second power splitter 14, in radome and in 3-dimensional metal choke central seat 15, be provided with the first radiating antenna of mutually being superimposed and the second radiating antenna and be fixed on the 3-dimensional metal choke central seat 15 by the hollow short circuit screw 2 that passes the first radiating antenna and the second radiating antenna center, between the first radiating antenna and 3-dimensional metal choke central seat 15, be provided with the first coaxial cable 11-1, one end of the inner core of the first coaxial cable 11-1 is connected with the radiation fin of the first radiating antenna, the other end of the inner core of the first coaxial cable 11-1 is connected with the first branch road 13-1 of the first power splitter 13, one end of the screen of the first coaxial cable 11-1 is connected with the ground of the first radiating antenna, and the other end of the screen of the first coaxial cable 11-1 is connected with the ground 13-0 of the first power splitter 13; Between the second radiating antenna and 3-dimensional metal choke central seat 15, be provided with the 5th coaxial cable 10-1 and the 5th coaxial cable 10-1 passes hollow short circuit screw 2, one end of the inner core of the 5th coaxial cable 10-1 is connected with the ground of the second radiating antenna, the other end of the inner core of the 5th coaxial cable 10-1 is connected with the first branch road 14-1 of the second power splitter 14, one end of the screen of the 5th coaxial cable 10-1 is connected with the radiation fin of the second radiating antenna, and the other end of the screen of the 5th coaxial cable 10-1 is connected with the ground 14-0 of the second power splitter 14.
Described the first radiating antenna is comprised of the first metal layer 9, first medium layer 8 and the second metal level 7 according to from bottom to up the superimposed setting of order, and described the first metal layer 9 is the ground of the first radiating antenna, and the second metal level 7 is the radiation fin of the first radiating antenna.Be provided with the first metal lattice that is consisted of by the metal salient point that is located on the first medium layer 8 in the outside of the second metal level 7, be located at metal salient point on the first medium layer 8 and be positioned at center take hollow short circuit screw 2 on the circumference in the center of circle and be uniformly distributed on the circumference.
Described the second radiating antenna is comprised of the second metal level 7, the 3rd metal level 6, second medium layer 4 and the 4th metal level 3 according to from bottom to up the superimposed setting of order, and described the second metal level 7 is the ground of the second radiating antenna, and the 4th metal level 3 is the radiation fin of the second radiating antenna.Be provided with the second metal lattice that is consisted of by the metal salient point that is located on the second medium layer 4 in the outside of the 4th metal level 3, be located at metal salient point on the second medium layer 4 and be positioned at center take hollow short circuit screw 2 on the circumference in the center of circle and be uniformly distributed on the circumference.
In the present embodiment, between the first radiating antenna and 3-dimensional metal choke central seat 15, also be provided with the second coaxial cable 11-2, triaxial cable 11-3 and the 4th coaxial cable 11-4, the second coaxial cable 11-2, one end of the inner core of triaxial cable 11-3 and the 4th coaxial cable 11-4 is connected with the radiation fin of the first radiating antenna respectively, the second coaxial cable 11-2, the other end of the inner core of triaxial cable 11-3 and the 4th coaxial cable 11-4 respectively with the second branch road 13-2 of the first power splitter 13, the 3rd branch road 13-3 and the 4th branch road 13-4 connect, the second coaxial cable 11-2, one end of the screen of triaxial cable 11-3 and the 4th coaxial cable 11-4 is connected with the ground of the first radiating antenna respectively, the second coaxial cable 11-2, the other end of the screen of triaxial cable 11-3 and the 4th coaxial cable 11-4 is connected with the ground 13-0 of the first power splitter 13 respectively, described the first coaxial cable 11-1, the second coaxial cable 11-2, triaxial cable 11-3 and the 4th coaxial cable 11-4 are symmetrical take hollow short circuit screw 2 as symmetry axis;
Between the second radiating antenna and 3-dimensional metal choke central seat 15, be provided with the 6th coaxial cable 10-2, the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 and the 6th coaxial cable 10-2, the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 pass hollow short circuit screw 2, the 6th coaxial cable 10-2, one end of the inner core of the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 is connected with the ground of the second radiating antenna respectively, the 6th coaxial cable 10-2, the other end of the inner core of the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 respectively with the second branch road 14-2 of the second power splitter 14, the 3rd branch road 14-3 and the 4th branch road 14-4 connect, the 6th coaxial cable 10-2, one end of the screen of the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 is connected with the radiation fin of the second radiating antenna respectively, the 6th coaxial cable 10-2, the other end of the screen of the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 is connected with the ground 14-0 of the second power splitter 14 respectively, described the 5th coaxial cable 10-1, the 6th coaxial cable 10-2, the 7th coaxial cable 10-3 and the 8th coaxial cable 10-4 are symmetrical take hollow short circuit screw 2 as symmetry axis.
In the present embodiment, the signal amplitude that four branch roads of the one one minute four power splitters are 13-1,13-2,13-3 and 13-4 equates, signal phase is followed successively by 0 °, 90 °, 180 ° and 270 ° or phase place is followed successively by 0 ° ,-90 ° ,-180 ° and-270 °, form four feed feed structures, realize left-hand circular polarization or right-handed circular polarization.
In the present embodiment, the signal amplitude that four branch roads of the 21 minute four power splitters are 14-1,14-2,14-3 and 14-4 equates, signal phase is followed successively by 0 °, 90 °, 180 ° and 270 ° or phase place is followed successively by 0 ° ,-90 ° ,-180 ° and-270 °, form four feed feed structures, realize left-hand circular polarization or right-handed circular polarization.
In the present embodiment, corresponding the second radiating antenna parameter of chokes ring that the second choke 17 of the chokes ring that the first choke 16 of the central seat 15 of 3-dimensional metal choke and 3-dimensional metal choke forms, the first choke 16 of 3-dimensional metal choke and 3-dimensional metal choke forms realizes the inhibition of the second radiating antenna working frequency points multipath signal and the inhibition of cross polarization signal.
In the present embodiment, corresponding the first radiating antenna parameter of chokes ring that the 4th choke 19 of the chokes ring that the 3rd choke 18 of the second choke 17 of 3-dimensional metal choke and 3-dimensional metal choke forms, the 3rd choke 18 of 3-dimensional metal choke and 3-dimensional metal choke forms realizes the inhibition of the first radiating antenna working frequency points multipath signal and the inhibition of cross polarization signal.
The below participates in the detailed content of a preferred embodiment of the present invention, and embodiment 1 in conjunction with the accompanying drawings.In possible situation, the same label that is used for institute's drawings attached and explanation represents same or analogous part.This embodiment is a kind of terrestrial receiving antenna for gps system, two working frequency points is L-band, all are right-handed circular polarizations, overall structure such as Fig. 1 are to structure shown in Figure 9, its first day phase of line directional diagram as shown in figure 10, gain pattern as shown in figure 11 when the first antenna elevation angle 60 was spent, gain pattern as shown in figure 12 when the first antenna azimuth 0 was spent, first day bobbin specific characteristic as shown in figure 13, wherein the elevation angle is in ± 60 beam areas, phase fluctuation is less than ± 2 °, gain fluctuation was less than ± 0.15dB when the elevation angle 60 was spent, axial ratio is all less than 1.25dB, owing to increased the 3-dimensional metal choke, antenna gain when the angle of pitch 60 degree are above significantly descends, be conducive to improve the anti-multipath jamming performance, simultaneously cross polarization gain is very little, less than-20dB, be conducive to improve anti-cross polarization signal performance; Second day phase of line directional diagram as shown in figure 14, gain pattern as shown in figure 15 when the second antenna elevation angle 60 was spent, gain pattern as shown in figure 16 when the second antenna azimuth 0 was spent, second day bobbin specific characteristic as shown in figure 17, wherein the elevation angle is in ± 60 beam areas, phase fluctuation is less than ± 3 °, gain fluctuation was less than ± 0.15dB when the elevation angle 60 was spent, axial ratio is all less than 3.2dB, owing to increased the 3-dimensional metal choke, antenna gain when the angle of pitch 60 degree are above significantly descends, Effective Raise the anti-multipath jamming performance, simultaneously cross polarization gain is very little, less than-14dB, be conducive to improve anti-cross polarization signal performance; The isolation of the first antenna and the second antenna reaches more than the 23dB as shown in figure 15.In sum, the index of preferred embodiment reaches good index.
Although the present invention is illustrated with reference to accompanying drawing and preferred embodiment,, for a person skilled in the art, the present invention can have various modifications and variations.Various change of the present invention, variation, and equivalent has the content of appending claims to contain.
Claims (7)
1. many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna, it is characterized in that, comprise: radome (1) and the 3-dimensional metal choke that disturbs for reflected signal and inhibition multipath, described 3-dimensional metal choke comprises the central seat (15) that highly equates, the first choke (16), the second choke (17), the 3rd choke (18) and the 4th choke (19), the first choke, the second choke, the 3rd choke and the 4th choke are concentric with central seat (15), and, the 3rd choke is positioned at the 4th choke, the second choke is positioned at the 3rd choke, the first choke is positioned at the second choke, central seat (15) is positioned at the first choke, central seat (15), the first choke, the second choke, the position of the 3rd choke and the 4th choke is downward along the short transverse from coil to coil, the first choke, the second choke, the 3rd choke and the 4th choke are metal cylinder, described radome (1) is located on the central seat (15) of 3-dimensional metal choke, in the central seat (15) of 3-dimensional metal choke, be provided with the first power splitter (13) and the second power splitter (14), in radome and in the central seat (15) of 3-dimensional metal choke, be provided with the first radiating antenna and the second radiating antenna that mutually is superimposed and be fixed on by the hollow short circuit screw (2) that passes the first radiating antenna and the second radiating antenna center on the central seat (15) of 3-dimensional metal choke, between the central seat (15) of the first radiating antenna and 3-dimensional metal choke, be provided with the first coaxial cable (11-1), one end of the inner core of the first coaxial cable (11-1) is connected with the radiation fin of the first radiating antenna, the other end of the inner core of the first coaxial cable (11-1) is connected with first branch road (13-1) of the first power splitter (13), one end of the screen of the first coaxial cable (11-1) is connected with the ground of the first radiating antenna, and the other end of the screen of the first coaxial cable (11-1) is connected with the ground (13-0) of the first power splitter (13); Between the central seat (15) of the second radiating antenna and 3-dimensional metal choke, be provided with the 5th coaxial cable (10-1) and the 5th coaxial cable (10-1) passes hollow short circuit screw (2), one end of the inner core of the 5th coaxial cable (10-1) is connected with the ground of the second radiating antenna, the other end of the inner core of the 5th coaxial cable (10-1) is connected with first branch road (14-1) of the second power splitter (14), one end of the screen of the 5th coaxial cable (10-1) is connected with the radiation fin of the second radiating antenna, and the other end of the screen of the 5th coaxial cable (10-1) is connected with the ground (14-0) of the second power splitter (14).
2. many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna according to claim 1, it is characterized in that, the first radiating antenna is comprised of the first metal layer (9), first medium layer (8) and the second metal level (7) according to from bottom to up the superimposed setting of order, and described the first metal layer (9) is the ground of the first radiating antenna, and the second metal level (7) is the radiation fin of the first radiating antenna.
3. many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna according to claim 2, it is characterized in that, be provided with the first metal lattice that is consisted of by the metal salient point that is located on the first medium layer (8) in the outside of the second metal level (7), be located at metal salient point on the first medium layer (8) and be positioned at center take hollow short circuit screw (2) on the circumference in the center of circle and be uniformly distributed on the circumference.
4.4 many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna according to claim 1, it is characterized in that, the second radiating antenna is comprised of the second metal level (7), the 3rd metal level (6), second medium layer (4) and the 4th metal level (3) according to from bottom to up the superimposed setting of order, and described the second metal level (7) is the ground of the second radiating antenna, and the 4th metal level (3) is the radiation fin of the second radiating antenna.
5. many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna according to claim 1, it is characterized in that, be provided with the second metal lattice that is consisted of by the metal salient point that is located on the second medium layer (4) in the outside of the 4th metal level (3), be located at metal salient point on the second medium layer (4) and be positioned at center take hollow short circuit screw (2) on the circumference in the center of circle and be uniformly distributed on the circumference.
6. many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna according to claim 1, it is characterized in that, between the first radiating antenna and 3-dimensional metal choke central seat (15), also be provided with the second coaxial cable (11-2), triaxial cable (11-3) and the 4th coaxial cable (11-4), the second coaxial cable (11-2), one end of the inner core of triaxial cable (11-3) and the 4th coaxial cable (11-4) is connected with the radiation fin of the first radiating antenna respectively, the second coaxial cable (11-2), the other end of the inner core of triaxial cable (11-3) and the 4th coaxial cable (11-4) respectively with second branch road (13-2) of the first power splitter (13), the 3rd branch road (13-3) and the 4th branch road (13-4) connect, the second coaxial cable (11-2), one end of the screen of triaxial cable (11-3) and the 4th coaxial cable (11-4) is connected with the ground of the first radiating antenna respectively, the second coaxial cable (11-2), the other end of the screen of triaxial cable (11-3) and the 4th coaxial cable (11-4) is connected with the ground (13-0) of the first power splitter (13) respectively, described the first coaxial cable (11-1), the second coaxial cable (11-2), triaxial cable (11-3) and the 4th coaxial cable (11-4) are symmetrical take hollow short circuit screw (2) as symmetry axis.
7. many feeds of anti-multipath multiband broad beam high stable circular polarization microstrip antenna according to claim 1, it is characterized in that, between the second radiating antenna and 3-dimensional metal choke central seat (15), be provided with the 6th coaxial cable (10-2), the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) and the 6th coaxial cable (10-2), the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) pass hollow short circuit screw (2), the 6th coaxial cable (10-2), one end of the inner core of the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) is connected with the ground of the second radiating antenna respectively, the 6th coaxial cable (10-2), the other end of the inner core of the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) respectively with second branch road (14-2) of the second power splitter (14), the 3rd branch road (14-3) and the 4th branch road (14-4) connect, the 6th coaxial cable (10-2), one end of the screen of the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) is connected with the radiation fin of the second radiating antenna respectively, the 6th coaxial cable (10-2), the other end of the screen of the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) is connected with the ground (14-0) of the second power splitter (14) respectively, described the 5th coaxial cable (10-1), the 6th coaxial cable (10-2), the 7th coaxial cable (10-3) and the 8th coaxial cable (10-4) are symmetrical take hollow short circuit screw (2) as symmetry axis.
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|---|---|---|---|
| CN 201220432444 CN202855898U (en) | 2012-08-29 | 2012-08-29 | Highly stable circular polarization microstrip antenna with multipath resistance, multi-feed source resistance, multi-wave band resistance, and wide wave beam resistance |
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| CN 201220432444 CN202855898U (en) | 2012-08-29 | 2012-08-29 | Highly stable circular polarization microstrip antenna with multipath resistance, multi-feed source resistance, multi-wave band resistance, and wide wave beam resistance |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457027A (en) * | 2013-08-30 | 2013-12-18 | 深圳市华信天线技术有限公司 | Diameter restraining device and antenna system |
| CN106229671A (en) * | 2016-08-30 | 2016-12-14 | 嘉善金昌电子有限公司 | The production method of metallic foams lightweight choke coil antenna and the antenna obtained thereof |
| CN108232463A (en) * | 2018-02-28 | 2018-06-29 | 中国人民解放军国防科技大学 | Choke coil for satellite navigation measurement type antenna |
| CN108767452A (en) * | 2018-04-24 | 2018-11-06 | 昆山恩电开通信设备有限公司 | A kind of high-performance dual-polarization radiation unit and isolation adjusting method |
| CN111740214A (en) * | 2020-06-20 | 2020-10-02 | 北京华龙通科技有限公司 | Measuring antenna adopting wave dish-shaped director |
| CN111864359A (en) * | 2020-08-28 | 2020-10-30 | 西安电子科技大学 | Four-feed plane helical antenna in global satellite navigation system |
| CN112310589A (en) * | 2020-12-16 | 2021-02-02 | 中国电子科技集团公司第九研究所 | Ware is divided to outer merit of aerospace cabin |
| CN114050410A (en) * | 2021-12-30 | 2022-02-15 | 陕西海积信息科技有限公司 | Circularly polarized antenna and reference station |
| CN114843750A (en) * | 2021-02-02 | 2022-08-02 | 诺赛特国际有限公司 | Antenna module, antenna and communication equipment |
-
2012
- 2012-08-29 CN CN 201220432444 patent/CN202855898U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457027A (en) * | 2013-08-30 | 2013-12-18 | 深圳市华信天线技术有限公司 | Diameter restraining device and antenna system |
| CN106229671A (en) * | 2016-08-30 | 2016-12-14 | 嘉善金昌电子有限公司 | The production method of metallic foams lightweight choke coil antenna and the antenna obtained thereof |
| CN108232463A (en) * | 2018-02-28 | 2018-06-29 | 中国人民解放军国防科技大学 | Choke coil for satellite navigation measurement type antenna |
| CN108232463B (en) * | 2018-02-28 | 2024-02-27 | 中国人民解放军国防科技大学 | Choke coil for satellite navigation measurement type antenna |
| CN108767452A (en) * | 2018-04-24 | 2018-11-06 | 昆山恩电开通信设备有限公司 | A kind of high-performance dual-polarization radiation unit and isolation adjusting method |
| CN108767452B (en) * | 2018-04-24 | 2024-02-27 | 昆山恩电开通信设备有限公司 | High-performance dual-polarized radiation unit and isolation degree adjusting method |
| CN111740214A (en) * | 2020-06-20 | 2020-10-02 | 北京华龙通科技有限公司 | Measuring antenna adopting wave dish-shaped director |
| CN111740214B (en) * | 2020-06-20 | 2022-08-05 | 北京华龙通科技有限公司 | Measuring antenna adopting wave dish-shaped director |
| CN111864359A (en) * | 2020-08-28 | 2020-10-30 | 西安电子科技大学 | Four-feed plane helical antenna in global satellite navigation system |
| CN112310589A (en) * | 2020-12-16 | 2021-02-02 | 中国电子科技集团公司第九研究所 | Ware is divided to outer merit of aerospace cabin |
| CN114843750A (en) * | 2021-02-02 | 2022-08-02 | 诺赛特国际有限公司 | Antenna module, antenna and communication equipment |
| CN114050410A (en) * | 2021-12-30 | 2022-02-15 | 陕西海积信息科技有限公司 | Circularly polarized antenna and reference station |
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