CN102842762B - Battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna - Google Patents
Battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna Download PDFInfo
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- CN102842762B CN102842762B CN201210311077.1A CN201210311077A CN102842762B CN 102842762 B CN102842762 B CN 102842762B CN 201210311077 A CN201210311077 A CN 201210311077A CN 102842762 B CN102842762 B CN 102842762B
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Abstract
Provided is a battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna. The battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna comprises an antenna housing and battlement type three-dimensional metal choking coils, wherein the battlement type three-dimensional metal choking coils comprise a center substrate, a first choking coil, a second choking coil, a third choking coil and a fourth choking coil. The antenna housing is arranged on the center substrate, the center substrate is provided with a first powder divider and a second power divider, and a first radiating antenna and a second radiating antenna are arranged inside the antenna housing and the center substrate and fixed through hollow short circuit screws. A first coaxial-cable is arranged between the first radiating antenna and the center substrate, one end of an inner core is connected with radiating pieces of the first radiating antenna, and the other end of the inner core is connected with a first branch path of the first powder divider. One end of a shielding layer is in ground connection with the first radiating antenna, and the other end of the shielding layer is in ground connection with the first powder divider. A fifth coaxial-cable is arranged between the second radiating antenna and the center substrate and penetrates through the hollow short circuit screws. The inner core is respectively in ground connection with the second radiating antenna and a first branch path of the second powder divider. The shielding layer is respectively in ground connection with radiating pieces of the second radiating antenna and the second powder divider.
Description
Technical field
The present invention relates to a kind of many feeds of battlement anti-multipath double frequency broad beam stable phase angle 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, has compact conformation, a remarkable advantage such as standing wave is little, axial ratio is little, axial ratio bandwidth is wide, double frequency isolation is high, phase center is overstable within the scope of broad beam.
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 form 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 is mainly widely used in geodesy and association area thereof, is also widely used in the directed field of hi-Fix.And wherein antenna technology belongs to core technology, common antenna, because the unstable meeting of its phase center brings Centimeter Level and above error, cannot be realized millimetre-sized superhigh precision locating and orienting.
The current satellite navigation system that can realize superhigh precision locating and orienting is mainly the GPS (Global Position System) of the U.S. and Chinese dipper system, the existing high stable phase center antenna mainly for U.S.'s GPS (Global Position System) mainly comprises two kinds of forms: adopt micro-band laminated patch antenna of the many feeds of axial symmetry, as the Zephyr measurement type antenna of Trimble company; The multi-arm snail slot antenna of " Hot Wheels " technology of employing, if Novatel GPS-600 antenna.The former is by the axisymmetric axial symmetry that Feed Design is kept to antenna, 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 gap 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 there is compact conformation, standing wave is little, axial ratio is little, axial ratio bandwidth is wide, double frequency isolation is high, phase center is overstable within the scope of broad beam, deviation in roundness is low, be easy to regulate and have many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna of anti-multipath interference function.
The present invention adopts following technical scheme:
A kind of many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna, comprise: radome and the battlement 3-dimensional metal choke disturbing for reflected signal and strong inhibition multipath, described battlement 3-dimensional metal choke comprises highly equal central seat, 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 short transverse from coil to coil, the 4th choke is metal cylinder, the first choke, the second choke, the 3rd choke metal cylinder that is as the criterion, described metalloid cylinder consists of 12 ~ 16 metal arc plates, 12 ~ 16 metal arc plates are uniformly distributed in centered by central seat, on the circumference that the radius of curvature of metal arc plate of take is radius, and, adjacent metal arc plate leaves gap and take this gap as groove, the groove width of each groove equates, gap axis on adjacent metalloid cylinder is to dislocation, described radome is located in the central seat of battlement 3-dimensional metal choke, in the central seat of battlement 3-dimensional metal choke, be provided with the first power splitter and the second power splitter, in radome and in the central seat of battlement 3-dimensional metal choke, be provided with the first radiating antenna and the second radiating antenna being mutually superimposed and be fixed in the central seat of battlement 3-dimensional metal choke by the hollow short circuit screw through the first radiating antenna and the second radiating antenna center, between the first radiating antenna and the central seat of battlement 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, the other end of the screen of the first coaxial cable is connected with the ground of the first power splitter, between the second radiating antenna and the central seat of battlement 3-dimensional metal choke, be provided with the 5th coaxial cable and the 5th coaxial cable through 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, tool of the present invention has the following advantages:
The chokes ring that the first choke 16 of the central seat 15 of battlement 3-dimensional metal choke and battlement 3-dimensional metal choke forms, corresponding the second radiating antenna parameter of chokes ring that the second choke 17 of the first choke 16 of battlement 3-dimensional metal choke pedestal and battlement 3-dimensional metal choke pedestal forms, on the first choke and the second choke, slot separately 12, groove width 3mm, groove depth is with choke height, the relative angle of the first choke 16 and the second choke 17 grooves 10 degree that stagger, this structure has realized second inhibition of radiating antenna working frequency points multipath signal and the inhibition of cross polarization signal and has cut off the electric current on the first choke 16 and the second choke 17.
In the present invention, adopt double-deck micro-belt substrate stepped construction to realize double frequency round polarized high-isolation high stable phase center antenna, for upper strata radiating antenna, on upper strata, adopt especially many feeds feed (representative value is four feeds) structure, it is inner that feed coaxial cable traverses to battlement 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 splitter, finally by the 21 minute four power splitter main roads, export; For lower floor's radiating antenna, in lower floor, adopt many feeds feed (representative value is four feeds) structure, four feeds are connected with four output ports of the one one minute four power splitter respectively, finally by the one one minute four power splitter main roads, export; In this structure, because the feed inner core of upper strata radiating antenna is without passing 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 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 connections in the one one minute.
In the present invention, can all carry out inner hole wall metallization to first medium layer, the inner all feed perforation of second medium layer, the coaxial inner core of feed can effectively weld first medium layer, the inner all feed perforation of second medium layer, thereby has significantly improved feed connection reliability.
In the present invention, the second metal level, the 4th metal level periphery are provided with to metal lattice.Because requiring the All Ranges antenna in work wave beam, high stable phase center antenna has consistent phase characteristic, yet conventionally due 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 increasing is carved except regulating, improve the consistency of antenna phase center and gain pattern and reduce axial ratio index.
The battlement 3-dimensional metal choke adopting in the present invention, by the different a plurality of chokes of high and low position, symmetrical grooving on the first choke, the second choke and the 3rd choke, the quantity of slotting on each choke is generally 12 to 16, groove depth generally equals choke height, groove width is generally less than 1/8th wavelength, the fluting of each choke staggers mutually, this structure can effectively reduce the interference of multipath signal, improve the cross-polarization performance of antenna, block the induced current on choke simultaneously, and significantly do not reduce the phase characteristic of antenna.
Accompanying drawing explanation
Reading after 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 while spending.
Figure 12 is the first antenna azimuth 0 of the present invention gain pattern while 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 while spending.
Figure 16 is the second antenna azimuth 0 of the present invention gain pattern while 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 splitter vertical views.
Figure 20 is the one one minute of the present invention four power splitter end views.
Figure 21 is the 21 minute of the present invention four power splitter vertical views.
Figure 22 is the 21 minute of the present invention four power splitter end views.
Wherein, 1 is radome, 2 is hollow metal short circuit screw, 3 is the 4th metal level, 4 is second medium layer, 6 is the 3rd metal level, 7 is the second metal level, 8 is 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 splitter, 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 splitter, 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 battlement 3-dimensional metal choke, 16 is the first choke of battlement 3-dimensional metal choke, 17 is the second choke of battlement 3-dimensional metal choke, 18 is the 3rd choke of battlement 3-dimensional metal choke, 19 is the 4th choke of battlement 3-dimensional metal choke.
Embodiment
A kind of many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna, with reference to Fig. 1, 2, comprise: radome 1 and for reflected signal and suppress the battlement 3-dimensional metal choke that multipath disturbs, with reference to Fig. 3, described battlement 3-dimensional metal choke comprises highly equal central seat 15, 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 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 short transverse from coil to coil, the 4th choke is metal cylinder, the first choke, the second choke, the 3rd choke metal cylinder that is as the criterion, described metalloid cylinder consists of 12 ~ 16 metal arc plates, 12 ~ 16 metal arc plates are uniformly distributed in centered by central seat 15, on the circumference that the radius of curvature of metal arc plate of take is radius, and, adjacent metal arc plate leaves gap and take this gap as groove, the groove width of each groove equates, gap axis on adjacent metalloid cylinder is to dislocation, described radome 1 is located in the central seat 15 of battlement 3-dimensional metal choke, in the central seat 15 of battlement 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 battlement 3-dimensional metal choke, be provided with the first radiating antenna and the second radiating antenna being mutually superimposed and be fixed in battlement 3-dimensional metal choke central seat 15 by the hollow short circuit screw 2 through the first radiating antenna and the second radiating antenna center, between the first radiating antenna and battlement 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, 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 battlement 3-dimensional metal choke central seat 15, be provided with the 5th coaxial cable 10-1 and the 5th coaxial cable 10-1 through 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.
With reference to Fig. 1 and Fig. 4 ~ 6, the first described radiating antenna is comprised of the first metal layer 9, first medium layer 8 and second metal level 7 of the superimposed setting of order according to from bottom to up, and described the first metal layer 9 is the ground of the first radiating antenna, the second metal level 7 is the radiation fin of the first radiating antenna.In the outside of the second metal level 7, be provided with the first metal lattice being formed by the metal salient point being located on first medium layer 8, be located at metal salient point on first medium layer 8 and be positioned at and take on the circumference that the center of hollow short circuit screw 2 is the center of circle and be uniformly distributed on circumference.
With reference to Fig. 1 and Fig. 6 ~ 9, the second described 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 of the superimposed setting of order according to from bottom to up, 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.In the outside of the 4th metal level 3, be provided with the second metal lattice being formed by the metal salient point being located on second medium layer 4, be located at metal salient point on second medium layer 4 and be positioned at and take on the circumference that the center of hollow short circuit screw 2 is the center of circle and be uniformly distributed on circumference.
In the present embodiment, between the first radiating antenna and battlement 3-dimensional metal choke central seat 15, be also 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 take hollow short circuit screw 2 as symmetry axis symmetrical,
Between the second radiating antenna and battlement 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 are through 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 take hollow short circuit screw 2 as symmetry axis symmetrical.
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; 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.
The chokes ring that the first choke 16 of the central seat 15 of battlement 3-dimensional metal choke and battlement 3-dimensional metal choke forms, corresponding the second radiating antenna parameter of chokes ring that the second choke 17 of the first choke 16 of battlement 3-dimensional metal choke and battlement 3-dimensional metal choke forms, on the first choke and the second choke, slot separately 12, groove width 3mm, groove depth is with choke height, the relative angle of the first choke 16 and the second choke 17 grooves 10 degree that stagger, this structure has realized second inhibition of radiating antenna working frequency points multipath signal and the inhibition of cross polarization signal and has cut off the electric current on the first choke 16 and the second choke 17.
In the present embodiment, the chokes ring that the 3rd choke 18 of the second choke 17 of battlement 3-dimensional metal choke and battlement 3-dimensional metal choke forms, corresponding the first radiating antenna parameter of chokes ring that the 4th choke 19 of the 3rd choke 18 of battlement 3-dimensional metal choke and battlement 3-dimensional metal choke forms, on the 3rd choke 18, slot 12, groove width 3mm, groove depth is with choke height, the relative angle of the second choke 17 and the 3rd choke 18 grooves 10 degree that stagger, this structure has realized first inhibition of radiating antenna working frequency points multipath signal and the inhibition of cross polarization signal and has cut off the electric current on the 3rd choke 18.
Participate in the detailed content of a preferred embodiment of the present invention below, embodiment 1 in conjunction with the accompanying drawings.Possible in the situation that, for the same label of institute's drawings attached and explanation, represent same or analogous part.This embodiment is a kind of terrestrial receiving antenna for gps system, two working frequency points is L-band, all right-handed circular polarizations, overall structure is if Fig. 1 is to structure as shown in Fig. 9, the one one minute four power splitters and the 21 minute four power splitters are as shown in Figure 19 and Figure 20, its first day phase of line directional diagram as shown in figure 10, when the first antenna elevation angle 60 is spent, gain pattern as shown in figure 11, when the first antenna azimuth 0 is spent, gain pattern as shown in figure 12, first day bobbin specific characteristic as shown in figure 13, wherein the elevation angle is in ± 60 beam areas, phase fluctuation is less than ± and 6 °, be less than ± 0.5dB of gain fluctuation when the elevation angle 60 is spent, axial ratio is all less than 1.25dB, owing to having increased battlement 3-dimensional metal choke, antenna gain when the angle of pitch 60 degree is above significantly declines, be conducive to improve anti-multipath jamming performance, the gain of cross polarization is simultaneously very little, be less than-18dB, be conducive to improve anti-cross polarization signal performance, second day phase of line directional diagram as shown in figure 14, when the second antenna elevation angle 60 is spent, gain pattern as shown in figure 15, when the second antenna azimuth 0 is spent, gain pattern as shown in figure 16, second day bobbin specific characteristic as shown in figure 17, wherein the elevation angle is in ± 60 beam areas, phase fluctuation is little 2.5 °, be less than ± 0.3dB of gain fluctuation when the elevation angle 60 is spent, axial ratio is all less than 3.8dB, owing to having increased battlement 3-dimensional metal choke, antenna gain when the angle of pitch 60 degree is above significantly declines, effectively improved anti-multipath jamming performance, the gain of cross polarization is simultaneously very little, be less than-14dB, be conducive to improve anti-cross polarization signal performance, the isolation of the first antenna and the second antenna as shown in figure 15, more than reaching 23dB.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 (5)
1. many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna, it is characterized in that, comprise: radome (1) and the battlement 3-dimensional metal choke disturbing for reflected signal and inhibition multipath, described battlement 3-dimensional metal choke comprises highly equal central seat (15), 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 (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 short transverse from coil to coil, the 4th choke is metal cylinder, the first choke, the second choke, the 3rd choke metal cylinder that is as the criterion, described metalloid cylinder consists of 12～16 metal arc plates, 12～16 metal arc plates are uniformly distributed in centered by central seat (15), on the circumference that the radius of curvature of metal arc plate of take is radius, and, adjacent metal arc plate leaves gap and take this gap as groove, the groove width of each groove equates, gap axis on adjacent metalloid cylinder is to dislocation, described radome (1) is located in the central seat (15) of battlement 3-dimensional metal choke, in the central seat (15) of battlement 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 battlement 3-dimensional metal choke, be provided with the first radiating antenna and the second radiating antenna being mutually superimposed and be fixed in battlement 3-dimensional metal choke central seat (15) by the hollow short circuit screw (2) through the first radiating antenna and the second radiating antenna center, between the first radiating antenna and battlement 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 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, 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 battlement 3-dimensional metal choke central seat (15), be provided with the 5th coaxial cable (10-1) and the 5th coaxial cable (10-1) through 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, 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), the first radiating antenna is by the first metal layer (9) of the superimposed setting of order according to from bottom to up, first medium layer (8) and the second metal level (7) form, and described the first metal layer (9) is the ground of the first radiating antenna, the second metal level (7) is the radiation fin of the first radiating antenna, in the outside of the second metal level (7), be provided with the first metal lattice being formed by the metal salient point being located on first medium layer (8), being located at metal salient point on first medium layer (8) is positioned at and take on the circumference that the center of hollow short circuit screw (2) is the center of circle and be uniformly distributed on circumference.
2. many feeds of battlement anti-multipath double frequency broad beam stable phase angle center 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) of the superimposed setting of order according to from bottom to up, and described the second metal level (7) is the ground of the second radiating antenna, the 4th metal level (3) is the radiation fin of the second radiating antenna.
3. many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna according to claim 2, it is characterized in that, in the outside of the 4th metal level (3), be provided with the second metal lattice forming by being located at metal salient point on second medium layer (4), be located at metal salient point on second medium layer (4) and be positioned at and take on the circumference that the center of hollow short circuit screw (2) is the center of circle and be uniformly distributed on circumference.
4. many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna according to claim 1, it is characterized in that, between the first radiating antenna and battlement 3-dimensional metal choke central seat (15), be also 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) take hollow short circuit screw (2) as symmetry axis symmetrical.
5. many feeds of battlement anti-multipath double frequency broad beam stable phase angle center antenna according to claim 1, it is characterized in that, between the second radiating antenna and battlement 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) are through 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) take hollow short circuit screw (2) as symmetry axis symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311077.1A CN102842762B (en) | 2012-08-29 | 2012-08-29 | Battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210311077.1A CN102842762B (en) | 2012-08-29 | 2012-08-29 | Battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna |
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| CN102842762A CN102842762A (en) | 2012-12-26 |
| CN102842762B true CN102842762B (en) | 2014-08-20 |
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| CN201210311077.1A Expired - Fee Related CN102842762B (en) | 2012-08-29 | 2012-08-29 | Battlement type anti-multipath multiple feed source double frequency wide beam stable phase center antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN103904408B (en) * | 2014-03-11 | 2016-08-31 | 西安电子科技大学昆山创新研究院 | Stable phase angle center measurement type antenna |
| US20160261035A1 (en) * | 2015-03-03 | 2016-09-08 | Novatel, Inc. | Three dimensional antenna and floating fence |
| CN106450704A (en) * | 2016-11-29 | 2017-02-22 | 航天恒星科技有限公司 | High-contact-ratio gain directional diagram circularly polarized antenna |
| WO2019019027A1 (en) * | 2017-07-25 | 2019-01-31 | 广州中海达卫星导航技术股份有限公司 | Lightweight and small-scale measuring antenna device |
| CN107946757A (en) * | 2017-11-14 | 2018-04-20 | 西安天通电子科技有限公司 | Broadband high stability phase center anti-multipath antenna |
| CN107887697A (en) * | 2017-12-23 | 2018-04-06 | 福建福大北斗通信科技有限公司 | Minimize anti-multipath plane gap helical antenna |
| CN108761502B (en) * | 2018-08-31 | 2024-02-02 | 广东圣大电子有限公司 | Multimode GNSS test receiver with accurate phase center |
| CN114069216A (en) * | 2021-12-29 | 2022-02-18 | 陕西海积信息科技有限公司 | Circularly polarized antenna and positioning terminal |
| CN114284756B (en) * | 2021-12-31 | 2023-10-24 | 上海海积信息科技股份有限公司 | Beidou communication antenna |
| CN117559135B (en) * | 2024-01-11 | 2024-04-05 | 福州福大信捷天线技术有限公司 | Big dipper high accuracy anti-interference array antenna |
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| CN101916901A (en) * | 2010-08-05 | 2010-12-15 | 广州市中海达测绘仪器有限公司 | Double-frequency microstrip antenna |
| CN102013549A (en) * | 2010-09-17 | 2011-04-13 | 航天恒星科技有限公司 | Precise GNSS directional antenna |
| CN102570017A (en) * | 2011-12-15 | 2012-07-11 | 东南大学 | Tri-band wide wave beam circular polarization microstrip antenna |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916901A (en) * | 2010-08-05 | 2010-12-15 | 广州市中海达测绘仪器有限公司 | Double-frequency microstrip antenna |
| CN102013549A (en) * | 2010-09-17 | 2011-04-13 | 航天恒星科技有限公司 | Precise GNSS directional antenna |
| CN102570017A (en) * | 2011-12-15 | 2012-07-11 | 东南大学 | Tri-band wide wave beam circular polarization microstrip antenna |
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