CN102790292A - Circular polarization satellite navigation antenna, preparation method and antenna circuit - Google Patents
Circular polarization satellite navigation antenna, preparation method and antenna circuit Download PDFInfo
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- CN102790292A CN102790292A CN2012102763183A CN201210276318A CN102790292A CN 102790292 A CN102790292 A CN 102790292A CN 2012102763183 A CN2012102763183 A CN 2012102763183A CN 201210276318 A CN201210276318 A CN 201210276318A CN 102790292 A CN102790292 A CN 102790292A
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Abstract
The invention discloses a circular polarization satellite navigation antenna, a preparation method and an antenna circuit. The circular polarization satellite navigation antenna circuit is characterized by comprising one N equally-divided power phase shifter, N L-shaped feed probes with the same size and a first circular patch, wherein short edges of the N L-shaped feed probes are respectively connected with N output ends of the N equally-divided power phase shifter, long edges of the L-shaped feed probes are vertical to one another, the first circular patch is arranged above the L-shaped feed probes, the intersected point of extension lines of long edges of the N L-shaped feed probes is located on the central axis of the first circular patch, the input energy is divided by the N equally-divided power phase shifter into N circuits of signals with identical amplitudes and 90-DEG phase difference, the N circuits of signals are respectively coupled and fed to the first circular patch through the N L-shaped feed probes, and N is two or four. The invention also provides the circular polarization satellite navigation antenna and the preparation method. The antenna can provide higher circular polarization bandwidth, gain and axial ratio and can be applied to a terminal device of a satellite navigation system.
Description
Technical field
The present invention relates to the microwave antenna technical field, particularly relate to a kind of circular polarization satellite navigation aerial, preparation method and antenna circuit.
Background technology
In recent years, the satellite navigation technology has obtained widely using, and satellite navigation system commonly used mainly is that (global position system, GPS) with Galileo (Galileo) system, Chinese Compass system has also served society to global positioning system.Because every kind of navigation system is limited in the satellite distribution in space; Can not cover tellurian All Ranges; So its location navigation precision, security reliability and availability have also all received restriction; Following satellite navigation system will adopt the compatible mutually pattern of multiple satellite navigation system in order to improve positioning accuracy and the problem that solves the triangular web coverage hole.And antenna is the important component part of satellite navigation system, with in a sense the performance of satellite navigation system being played decisive role.Therefore, the research design that can receive the satellite earth antenna of a plurality of frequency band signals has simultaneously received extensive attention.
The communication apparatus of GPS (GPS) requires its antenna that right hand circular polarization (right-hand circular polarization) can be provided, and the field pattern of radiant power can evenly be contained whole first sphere.Circular Polarisation is the main circulation way that Satellite Communication System uses; Compare with the linear polarization circulation way; Not restriction on the direction of electromagnetic transmission and reception, and, when using the Circular Polarisation circulation way; Electromagnetic wave can produce Faraday rotation effect in ionosphere, makes Circular Polarisation in satellite communication, have importance in recent years.
At present, the antenna that is applied in the satellite navigation terminal equipment mainly contains: helical antenna, slot antenna, offset printing antenna.Helical antenna connects antenna with non-equilibrium feeder line, and cable center is connected the spiral part of antenna, and the crust of cable is connected on the reflector.Helical antenna can be received and dispatched the polarization electromagnetic signal of rotating in the space, have circular polarization performance preferably, but its spatial volume is bigger, is used in usually in the ground base station of satellite communication, be difficult in ICBM SHF satellite terminal equipment built-in and be difficult for and carrier conformal.
The antenna of slot antenna on conductive surface, cracking and forming is also referred to as slot antenna.Typical seam shape is a strip, and length is about half wavelength.The slit can be with the transmission line feed that is connected across on the narrow limit, also can be by waveguide or resonant cavity feed, and excitation has radio frequency electromagnetic field on the slit, and to the space radiation electromagnetic wave.Because the discontinuity of conductive surface, slot antenna can produce stronger higher mode radiation and low elevation angle circular polarization, and feeding classification is difficult for realizing.
Characteristics such as the offset printing antenna has complanation, and is simple in structure, and it is little to take up room, and Design and Machining is easy are widely used in the middle of the various wireless communication terminal equipment in recent years.But; In realizing process of the present invention; Inventor of the present invention finds: the planar structure of the offset printing antenna in the radio communication terminal causes it that narrower impedance bandwidth, circular polarization bandwidth and low elevation gain are arranged, and is difficult to satisfy the requirement of satellite navigation receiver.
Summary of the invention
In view of this, the invention provides a kind of circular polarization satellite navigation aerial, preparation method and antenna circuit, this antenna provides higher circular polarization bandwidth, gain and axial ratio, can be applicable in the terminal equipment of satellite navigation system.
A kind of circular polarization satellite navigation aerial circuit, said antenna circuit comprises:
A branch merit such as N is divided phase shifter, N measure-alike L type feed probes and one first circular patch;
N L type feed probes minor face divides N output of phase shifter to link to each other with branch merits such as N respectively; Long limit is mutually 90 °; First circular patch is positioned over the top of N L type feed probes, and N the long limit of L type feed probes extending line intersection point is on the central axis of said first circular patch;
Branch merits such as N divide phase shifter with intake be divided into that N road amplitude is identical, phase difference 90 ° signal each other, N road signal is coupled feed to first circular patch through N L type feed probes respectively;
Wherein, N is two or four.
Preferably, said antenna circuit further comprises:
Second circular patch, said second circular patch is positioned over the top of first circular patch, and diameter is less than first circular patch, and coaxial with first circular patch.
Preferably, N is at 2 o'clock, and is said
The bisection merit divides phase shifter to be made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
Preferably, N is at 4 o'clock, and is said
Quartering merit divides phase shifter to form first order feeding network by two power splitters and 180 ° of phase shifter cascades, and forms second level feeding network by two power splitters and 90 ° of phase shifter cascades and form.
A kind of preparation method of circular polarization satellite navigation aerial, said preparation method comprises:
Divide phase shifter a branch merit such as two-sided microwave base plate one side etching microstrip line composition N, surface brush one deck inoxidzable coating is as end face, and another side carries out conductive processing as the bottom surface;
The bottom surface of two-sided microwave base plate is connected with metal ground plate; The minor face of the L type feed probes that N is measure-alike divides two outputs of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, and makes 90 ° each other on the individual long limit of said N with N L type feed probes simultaneously;
First circular patch insulation is fixedly connected on the two-sided microwave base plate and is positioned at the top of N measure-alike L type feed probes, and make said N the long limit of measure-alike L type feed probes extending line intersection point simultaneously on the central axis of said first circular patch;
Wherein, N is two or four.
Preferably, said method further comprises:
Second circular patch insulation is fixedly connected on first circular patch, and diameter is less than first circular patch, and coaxial with first circular patch.
Preferably, N is 2 o'clock, and the said branch merit such as N of forming at a two-sided microwave base plate one side etching microstrip line divides phase shifter to comprise:
Form by bisection power splitter and 90 ° of feeding networks that the phase shifter cascade forms at a two-sided microwave base plate one side etched micro band antenna.
Preferably, N is 4 o'clock, and the said branch merit such as N of forming at a two-sided microwave base plate one side etching microstrip line divides phase shifter to comprise:
Form first order feeding network at a two-sided microwave base plate one side etching microstrip line composition by two power splitters and 180 ° of phase shifter cascades, and form second level feeding network by two power splitters and 90 ° of phase shifter cascades.
A kind of circular polarization satellite navigation aerial, said antenna comprises:
Metal ground plate, two-sided microwave base plate, N measure-alike L type feed probes and one first circular patch; Branch merits such as said two-sided microwave base plate one side etched micro band line formation N are divided phase shifter; And having inoxidzable coating as end face, another side carries out conductive processing as the bottom surface;
The bottom surface of said two-sided microwave base plate links to each other with said metal ground plate;
The minor face of N measure-alike L type feed probes divides N output of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, 90 ° each other on the individual long limit of N;
First circular patch is positioned at the top of N measure-alike L type feed probes, and said N L type feed probes grown the central axis that the limit extending line intersection point is positioned at said first circular patch;
Wherein, N is two or four.
Preferably, said antenna further comprises:
Second circular patch, said second circular patch are positioned at first circular patch top, and diameter is less than first circular patch, and coaxial with first circular patch.
Preferably,
Medium between said first circular patch and second circular patch is an air.
Preferably,
The diameter of said N measure-alike L type feed probes is 1.2mm, and the bond length of probe is 17mm, and long edge lengths is 42mm;
The said first circular patch radius is 53mm, and the distance between the said two-sided microwave base plate is 24mm.
Preferably,
The diameter of said N measure-alike L type feed probes is 1.2mm, and the bond length of probe is 17mm, and long edge lengths is 42mm;
The said first circular patch radius is 53mm, and the distance between the said two-sided microwave base plate is 24mm;
The said second circular patch radius is 38mm, and the distance between said first circular patch is 17mm;
Wherein, N is two or four.
Preferably,
N is 2 o'clock, and said bisection merit divides phase shifter to be made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
Preferably, N is 4 o'clock,
Said quartering merit is divided phase shifter to be formed first order feeding network and formed second level feeding network by two power splitters and 90 ° of phase shifter cascades by two power splitters and 180 ° of phase shifter cascades and is formed.
Can know that by foregoing the present invention has following beneficial effect:
N L type feed probes minor face divides a phase shifter N output to link to each other with branch merits such as N respectively; Long limit is mutually 90 °, and first circular patch is positioned over the top of N L type feed probes, and N the long limit of L type feed probes extending line intersection point is on the central axis of said first circular patch; Branch merits such as N divide phase shifter with intake be divided into that N road amplitude is identical, phase difference is 90 ° signal; N road signal is coupled feed to first circular patch through N L type feed probes respectively, and wherein, N is two or four; Above-mentioned height symmetrical structure makes Electric Field Distribution more even, has improved circular polarization bandwidth and gain.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the vertical view of 2 o'clock a kind of circular polarization satellite navigation aerial circuit for N;
Fig. 2 is the front view of 2 o'clock a kind of circular polarization satellite navigation aerial circuit for N;
Fig. 3 is the vertical view of 4 o'clock a kind of circular polarization satellite navigation aerial circuit for N;
Fig. 4 is the front view of 4 o'clock a kind of circular polarization satellite navigation aerial circuit for N;
Fig. 5 is the vertical view that contains the circular polarization satellite navigation aerial circuit of two circular patches;
Fig. 6 is the front view that contains the circular polarization satellite navigation aerial circuit of two circular patches;
Fig. 7 is metal ground plate and two-sided microwave base plate connecting hole sketch map;
Fig. 8 is the return loss plot that contained the circular polarization satellite navigation aerial of two circular patches at 2 o'clock for N;
Fig. 9 is the axial ratio bandwidth curve that contained the circular polarization satellite navigation aerial of two circular patches at 2 o'clock for N;
Figure 10 is the return loss plot that contained the circular polarization satellite navigation aerial of two circular patches at 4 o'clock for N;
Figure 11 is the axial ratio bandwidth curve that contained the circular polarization satellite navigation aerial of two circular patches at 4 o'clock for N.
Embodiment
The invention provides a kind of circular polarization satellite navigation aerial, preparation method and antenna circuit, adopt the height symmetrical structure to make Electric Field Distribution more even, improved circular polarization bandwidth and gain, can be used in the terminal equipment of satellite navigation system.
Antenna circuit provided by the present invention; Branch merit such as N is divided phase shifter, N measure-alike L type feed probes and one first circular patch, and N L type feed probes minor face divides N output of phase shifter to link to each other with branch merit such as N respectively, grows the limit to be mutually 90 °; First circular patch is positioned over the top of N L type feed probes; And the long limit of N L type feed probes extending line intersection point is on the central axis of said first circular patch, branch merits such as N divide phase shifter with intake be divided into that N road amplitude is identical, phase difference 90 ° signal each other, N road signal is coupled feed to first circular patch through N L type feed probes respectively; Wherein, N is two or four.
Preparation method provided by the present invention; Divide phase shifter a branch merit such as two-sided microwave base plate one side etching microstrip line composition N; Surface brush one deck inoxidzable coating is as end face; Another side carries out conductive processing as the bottom surface; The bottom surface of two-sided microwave base plate is connected with metal ground plate, and the minor face of the L type feed probes that N is measure-alike divides two outputs of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, and makes 90 ° each other on the individual long limit of said N with N L type feed probes simultaneously; First circular patch insulation is fixedly connected on the two-sided microwave base plate and is positioned at the top of N measure-alike L type feed probes; And make said N the long limit of measure-alike L type feed probes extending line intersection point simultaneously on the central axis of said first circular patch, wherein, N is two or four.
The bright antenna that provides of this law; Metal ground plate, two-sided microwave base plate, N measure-alike L type feed probes and one first circular patch, said two-sided microwave base plate one side etched micro band line form branch merit such as N and divide phase shifter, and have inoxidzable coating as end face; Another side carries out conductive processing as the bottom surface; The bottom surface of said two-sided microwave base plate links to each other with said metal ground plate, and the minor face of N measure-alike L type feed probes divides N output of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and be vertical with two-sided microwave base plate, 90 ° each other on the individual long limit of N; First circular patch is positioned at the top of N measure-alike L type feed probes; And said N the long limit of L type feed probes extending line intersection point is positioned at the central axis of said first circular patch, and wherein, N is two or four.
Be elaborated below in conjunction with accompanying drawing.
Embodiment one
The present embodiment master is noted that a kind of circular polarization satellite navigation aerial circuit.
A branch merit such as N is divided phase shifter, N measure-alike L type feed probes and one first circular patch.
N L type feed probes minor face divides N output of phase shifter to link to each other with branch merits such as N respectively; Long limit is mutually 90 °; First circular patch is positioned over the top of N L type feed probes, and N the long limit of L type feed probes extending line intersection point is on the central axis of said first circular patch.
Branch merits such as N divide phase shifter with intake be divided into that N road amplitude is identical, phase difference is 90 ° signal, N road signal is coupled feed to first circular patch through N L type feed probes respectively.
N is 2 o'clock, and Fig. 1 is a kind of vertical view of circular polarization satellite navigation aerial circuit, and Fig. 2 is a kind of front view of vertical view of circular polarization satellite navigation aerial circuit.
N is 2 o'clock; Two L type feed probes 102-103 minor faces link to each other with two outputs of the centimetre phase shifter 101 of halving respectively; Long limit quadrature; First circular patch 104 is positioned over the top of two L type feed probes 102-103, and two the long limit of L type feed probes 102-103 extending line intersection points are on the central axis of said first circular patch 104.
The centimetre phase shifter 101 of halving is made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
The bisection merit divide phase shifter 101 with intake be divided into that two tunnel amplitudes are identical, phase difference is 90 ° signal, two road signals respectively through two L type feed probes 102-103 coupling feeds to first circular patch 104.
N is 4 o'clock, and Fig. 3 is a kind of vertical view of circular polarization satellite navigation aerial circuit, and Fig. 4 is a kind of front view of vertical view of circular polarization satellite navigation aerial circuit.
N is 4 o'clock; Four L type feed probes 302-305 minor faces link to each other with four outputs of quartering centimetre phase shifter 301 respectively; Long limit is mutually 90 °; First circular patch 306 is positioned over the top of four L type feed probes 302-305, and four the long limit of L type feed probes 302-305 extending line intersection points are on the central axis of said first circular patch 306.
Quartering merit divides phase shifter 301 to form first order feeding network by two power splitters and 180 ° of phase shifter cascades, and forms second level feeding network by two power splitters and 90 ° of phase shifter cascades and form.
Quartering merit divide phase shifter 301 with intake be divided into that four tunnel amplitudes are identical, phase difference is 90 ° signal, four road signals respectively through four L type feed probes 302-305 coupling feeds to first circular patch 306.
Preferably, a kind of circular polarization satellite navigation aerial circuit further comprises second circular patch, and said second circular patch is positioned over the top of first circular patch, and diameter is less than first circular patch, and coaxial with first circular patch.
With N be 2 o'clock be example, Fig. 5 contains the vertical view of the circular polarization satellite navigation aerial circuit of two circular patches, Fig. 6 be contain two circular patches circular polarization satellite navigation aerial circuit front view.
N is 4 o'clock, with N be 2 o'clock similar, repeat no more here.
Can know that by foregoing the present invention has following beneficial effect:
N L type feed probes minor face divides a phase shifter N output to link to each other with branch merits such as N respectively; Long limit is mutually 90 °, and first circular patch is positioned over the top of N L type feed probes, and N the long limit of L type feed probes extending line intersection point is on the central axis of said first circular patch; Branch merits such as N divide phase shifter with intake be divided into that N road amplitude is identical, phase difference is 90 ° signal; N road signal is coupled feed to first circular patch through N L type feed probes respectively, and wherein, N is two or four; Above-mentioned height symmetrical structure makes Electric Field Distribution more even, has improved circular polarization bandwidth and gain.
Embodiment two
The present embodiment master is noted that a kind of preparation method of circular polarization satellite navigation aerial.
Divide phase shifter a branch merit such as two-sided microwave base plate one side etching microstrip line composition N, surface brush one deck inoxidzable coating is as end face, and another side carries out conductive processing as the bottom surface.
When N was two, as shown in Figure 1, the microstrip line of shape shown in etching Fig. 1 was formed the bisection merit and is divided phase shifter 101 on a two-sided microwave base plate, was made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
When N is four; As shown in Figure 3; The microstrip line of shape shown in etching Fig. 3 is formed quartering merit and is divided phase shifter 301 on two-sided microwave base plate; Form first order feeding network by two power splitters and 180 ° of phase shifter cascades, and form second level feeding network by two power splitters and 90 ° of phase shifter cascades and form.
The oxide covering that end face is brushed causes oxidation in order to prevent the long-term ingress of air of microstrip line, and is preferred, in the present invention, and at end face brush one deck insulating varnish.
Wherein, the bottom surface of making conductive processing is used for ground connection, and is preferred, in the present invention, the bottom surface done cover copper and handle.
The bottom surface of two-sided microwave base plate is connected with metal ground plate; The minor face of the L type feed probes that N is measure-alike divides two outputs of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, and makes 90 ° each other on the individual long limit of said N with N L type feed probes simultaneously.
The mode that two-sided microwave base plate is fixedly connected with metal ground plate does not limit, and is preferred, among the present invention, adopts 12 bolts to be fixedly connected.Wherein, the kind of bolt and quantity can be adjusted according to actual conditions.
The minor face of N measure-alike L type feed probes divides two output connected modes of phase shifter not limit with the branch merits such as N that are positioned at two-sided microwave base plate end face, and preferred, the present invention adopts the mode of soldering.
First circular patch insulation is fixedly connected on the two-sided microwave base plate and is positioned at the top of N measure-alike L type feed probes, and make said N the long limit of measure-alike L type feed probes extending line intersection point simultaneously on the central axis of said first circular patch.
The insulation of first circular patch is fixedly connected on the two-sided microwave base plate, and the fixing mode of insulation does not limit, and is preferred, and the present invention adopts three plastic bolts that the insulation of first circular patch is fixed on the two-sided microwave base plate.Wherein, the kind of plastic bolt and number can be adjusted according to actual conditions.
Wherein, in the foregoing, N is two or four.
Preferably, a kind of preparation method's progress one of circular polarization satellite navigation aerial comprises, the insulation of second circular patch is fixedly connected on first circular patch, and diameter is less than first circular patch, and coaxial with first circular patch.
The insulation of second circular patch is fixed on first circular patch, and the fixing mode of insulation does not limit, and is preferred, and the present invention adopts three plastic bolts that the insulation of first circular patch is fixed on the two-sided microwave base plate.Wherein, the kind of plastic bolt and number can be adjusted according to actual conditions.
Embodiment three
The present embodiment master is noted that a kind of circular polarization satellite navigation aerial.
Metal ground plate, two-sided microwave base plate, N measure-alike L type feed probes and one first circular patch; Branch merits such as said two-sided microwave base plate one side etched micro band line formation N are divided phase shifter; And having inoxidzable coating as end face, another side carries out conductive processing as the bottom surface.
The size of metal ground plate and two-sided microwave base plate, shape and material do not limit, and be preferred; Among the present invention, metal ground plate and two-sided microwave all are circular, and metal ground plate is an aluminium sheet; Diameter is a bit larger tham two-sided microwave base plate, and thickness is 2mm, and diameter is 130mm.
Wherein, the size and the material of N the L feed probes and first circular patch do not limit, and preferred, in the present invention, the diameter of N L type feed probes all is 1.2mm, and bond length is 17mm, and growing edge lengths is 42mm; The radius of first circular patch is 53mm, and the height of the two-sided microwave base plate of distance is 24mm.
Branch merits such as N are divided phase shifter, and the inoxidzable coating material of end face does not limit, and preferred, in the present invention, the inoxidzable coating of end face is an insulating varnish; Conductive processing is carried out in the bottom surface, and is preferred, and in the present invention, the bottom surface is done and covered the copper processing.
N is 2 o'clock, and the bisection merit divides phase shifter to be made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
N is 4 o'clock, and quartering merit is divided phase shifter to be formed first order feeding network and formed second level feeding network by two power splitters and 90 ° of phase shifter cascades by two power splitters and 180 ° of phase shifter cascades and formed.
The bottom surface of said two-sided microwave base plate links to each other with said metal ground plate.
Ways of connecting does not limit, and is along the aperture of circumferentially evenly making a call to 12 up/down perforations separately, as shown in Figure 7 on metal ground plate and two-sided microwave base plate in the present invention, is used to use bolt that two boards is fixedly connected.Wherein, the number in hole can be adjusted according to actual conditions.
The minor face of N measure-alike L type feed probes divides N output of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, 90 ° each other on the individual long limit of N.
First circular patch is positioned at the top of N measure-alike L type feed probes, and said N L type feed probes grown the central axis that the limit extending line intersection point is positioned at said first circular patch.
Preferably, a kind of circular polarization satellite navigation aerial further comprises second circular patch 501, and said second circular patch is positioned at first circular patch top, and diameter is less than first circular patch, and coaxial with first circular patch.
Preferably, in the present invention, the second circular patch radius is 38mm, and the distance between said first circular patch is 17mm; Medium between first circular patch and second circular patch is an air.
When N is two; It is as shown in Figure 8 that the present invention contains the return loss plot of circular polarization satellite navigation aerial of two circular patches, can know that S (1; 1) less than-15dB Time Bandwidth greater than 600MHz; The impedance bandwidth broad of antenna, above-mentioned antenna can cover 1.19GHz ~ 1.6GHz frequency band, in the navigation terminal applicable to three satellite navigation systems of GPS/GLONASS/BD2.
When N is two; It is as shown in Figure 9 that the present invention contains the axial ratio bandwidth curve of circular polarization satellite navigation aerial of two circular patches, and greater than 500MHz, antenna has extremely strong circular polarization characteristics to axial ratio less than the 3dB Time Bandwidth; Can reduce multipath effect effectively, improve the stability of system.
When N was four, it is shown in figure 10 that the present invention contains the return loss plot of circular polarization satellite navigation aerial of two circular patches, standing-wave ratio less than the 1.5dB Time Bandwidth greater than 500MHz.
When N was four, it is shown in figure 11 that the present invention contains the axial ratio bandwidth curve of circular polarization satellite navigation aerial of two circular patches, axial ratio less than 2 Time Bandwidths greater than 350MHz.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. circular polarization satellite navigation aerial circuit is characterized in that said antenna circuit comprises:
A branch merit such as N is divided phase shifter, N measure-alike L type feed probes and one first circular patch;
N L type feed probes minor face divides N output of phase shifter to link to each other with branch merits such as N respectively; Long limit is mutually 90 °; First circular patch is positioned over the top of N L type feed probes, and N the long limit of L type feed probes extending line intersection point is on the central axis of said first circular patch;
Branch merits such as N divide phase shifter with intake be divided into that N road amplitude is identical, phase difference 90 ° signal each other, N road signal is coupled feed to first circular patch through N L type feed probes respectively;
Wherein, N is two or four.
2. antenna circuit according to claim 1 is characterized in that, said antenna circuit further comprises:
Second circular patch, said second circular patch is positioned over the top of first circular patch, and diameter is less than first circular patch, and coaxial with first circular patch.
3. according to claim 1 or 2 any described antenna circuits, it is characterized in that N is at 2 o'clock, and is said
The bisection merit divides phase shifter to be made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
4. according to claim 1 or 2 any described antenna circuits, it is characterized in that N is at 4 o'clock, and is said
Quartering merit divides phase shifter to form first order feeding network by two power splitters and 180 ° of phase shifter cascades, and forms second level feeding network by two power splitters and 90 ° of phase shifter cascades and form.
5. the preparation method of a circular polarization satellite navigation aerial is characterized in that, said preparation method comprises:
Divide phase shifter a branch merit such as two-sided microwave base plate one side etching microstrip line composition N, surface brush one deck inoxidzable coating is as end face, and another side carries out conductive processing as the bottom surface;
The bottom surface of two-sided microwave base plate is connected with metal ground plate; The minor face of the L type feed probes that N is measure-alike divides two outputs of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, and makes 90 ° each other on the individual long limit of said N with N L type feed probes simultaneously;
First circular patch insulation is fixedly connected on the two-sided microwave base plate and is positioned at the top of N measure-alike L type feed probes, and make said N the long limit of measure-alike L type feed probes extending line intersection point simultaneously on the central axis of said first circular patch;
Wherein, N is two or four.
6. method according to claim 5 is characterized in that, said method further comprises:
Second circular patch insulation is fixedly connected on first circular patch, and diameter is less than first circular patch, and coaxial with first circular patch.
7. according to claim 5 or 6 any described methods, it is characterized in that N is at 2 o'clock, the said branch merit such as N of forming at a two-sided microwave base plate one side etching microstrip line divides phase shifter to comprise:
Form by bisection power splitter and 90 ° of feeding networks that the phase shifter cascade forms at a two-sided microwave base plate one side etched micro band antenna.
8. according to claim 5 or 6 any described methods, it is characterized in that N is at 4 o'clock, the said branch merit such as N of forming at a two-sided microwave base plate one side etching microstrip line divides phase shifter to comprise:
Form first order feeding network at a two-sided microwave base plate one side etching microstrip line composition by two power splitters and 180 ° of phase shifter cascades, and form second level feeding network by two power splitters and 90 ° of phase shifter cascades.
9. a circular polarization satellite navigation aerial is characterized in that, said antenna comprises:
Metal ground plate, two-sided microwave base plate, N measure-alike L type feed probes and one first circular patch; Branch merits such as said two-sided microwave base plate one side etched micro band line formation N are divided phase shifter; And having inoxidzable coating as end face, another side carries out conductive processing as the bottom surface;
The bottom surface of said two-sided microwave base plate links to each other with said metal ground plate;
The minor face of N measure-alike L type feed probes divides N output of phase shifter to be connected with the branch merits such as N that are positioned at two-sided microwave base plate end face respectively and is vertical with two-sided microwave base plate, 90 ° each other on the individual long limit of N;
First circular patch is positioned at the top of N measure-alike L type feed probes, and said N L type feed probes grown the central axis that the limit extending line intersection point is positioned at said first circular patch;
Wherein, N is two or four.
10. antenna according to claim 9 is characterized in that, said antenna further comprises:
Second circular patch, said second circular patch are positioned at first circular patch top, and diameter is less than first circular patch, and coaxial with first circular patch.
11. antenna according to claim 9 is characterized in that,
Medium between said first circular patch and second circular patch is an air.
12. antenna according to claim 9 is characterized in that,
The diameter of said N measure-alike L type feed probes is 1.2mm, and the bond length of probe is 17mm, and long edge lengths is 42mm;
The said first circular patch radius is 53mm, and the distance between the said two-sided microwave base plate is 24mm.
13. antenna according to claim 10 is characterized in that,
The diameter of said N measure-alike L type feed probes is 1.2mm, and the bond length of probe is 17mm, and long edge lengths is 42mm;
The said first circular patch radius is 53mm, and the distance between the said two-sided microwave base plate is 24mm;
The said second circular patch radius is 38mm, and the distance between said first circular patch is 17mm;
Wherein, N is two or four.
14. according to any described method of claim 9-13, it is characterized in that,
N is 2 o'clock, and said bisection merit divides phase shifter to be made up of the feeding network that bisection power splitter and 90 ° of phase shifter cascades form.
15. according to any described method of claim 9-13, it is characterized in that N is at 4 o'clock,
Said quartering merit is divided phase shifter to be formed first order feeding network and formed second level feeding network by two power splitters and 90 ° of phase shifter cascades by two power splitters and 180 ° of phase shifter cascades and is formed.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474757A (en) * | 2013-09-11 | 2013-12-25 | 华为技术有限公司 | Antenna system |
| CN106450762A (en) * | 2016-10-19 | 2017-02-22 | 厦门致联科技有限公司 | Compact symmetrical feed network |
| CN109216833A (en) * | 2017-06-30 | 2019-01-15 | 华为技术有限公司 | A kind of phase shifter |
| CN109638422A (en) * | 2018-11-15 | 2019-04-16 | 中国电子科技集团公司第三十八研究所 | A kind of broadband circle polarized Shared aperture communication and navigation array antenna |
| CN110459865A (en) * | 2019-07-09 | 2019-11-15 | 哈尔滨工程大学 | A kind of circular polarisation single layer paster antenna that Ka wave band is small-sized |
| CN110854544A (en) * | 2019-11-29 | 2020-02-28 | 电子科技大学 | Low-RCS phased-array antenna and RCS reduction method |
| CN114976597A (en) * | 2022-05-26 | 2022-08-30 | 福耀玻璃工业集团股份有限公司 | Vehicle-mounted glass integrated with antenna, manufacturing method and vehicle |
| CN115023857A (en) * | 2020-01-06 | 2022-09-06 | 原田工业株式会社 | Feed circuit for circularly polarized antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064381A (en) * | 2006-04-24 | 2007-10-31 | 中国科学院空间科学与应用研究中心 | Dual-frequency GPS antenna for radio occultation detection |
| CN201191651Y (en) * | 2008-04-30 | 2009-02-04 | 摩比天线技术（深圳）有限公司 | Circular-polarization antenna and RFID apparatus |
| CN102013549A (en) * | 2010-09-17 | 2011-04-13 | 航天恒星科技有限公司 | Precise GNSS directional antenna |
| CN102332637A (en) * | 2011-08-31 | 2012-01-25 | 华南理工大学 | Dual-polarized multi-system compatible antenna |
| CN202737111U (en) * | 2012-08-03 | 2013-02-13 | 北京敏视达雷达有限公司 | Circularly polarized satellite navigation antenna and antenna circuit |
-
2012
- 2012-08-03 CN CN201210276318.3A patent/CN102790292B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064381A (en) * | 2006-04-24 | 2007-10-31 | 中国科学院空间科学与应用研究中心 | Dual-frequency GPS antenna for radio occultation detection |
| CN201191651Y (en) * | 2008-04-30 | 2009-02-04 | 摩比天线技术（深圳）有限公司 | Circular-polarization antenna and RFID apparatus |
| CN102013549A (en) * | 2010-09-17 | 2011-04-13 | 航天恒星科技有限公司 | Precise GNSS directional antenna |
| CN102332637A (en) * | 2011-08-31 | 2012-01-25 | 华南理工大学 | Dual-polarized multi-system compatible antenna |
| CN202737111U (en) * | 2012-08-03 | 2013-02-13 | 北京敏视达雷达有限公司 | Circularly polarized satellite navigation antenna and antenna circuit |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474757A (en) * | 2013-09-11 | 2013-12-25 | 华为技术有限公司 | Antenna system |
| CN106450762A (en) * | 2016-10-19 | 2017-02-22 | 厦门致联科技有限公司 | Compact symmetrical feed network |
| CN106450762B (en) * | 2016-10-19 | 2023-10-10 | 厦门致联科技有限公司 | Compact symmetrical feed network |
| CN109216833A (en) * | 2017-06-30 | 2019-01-15 | 华为技术有限公司 | A kind of phase shifter |
| CN109638422A (en) * | 2018-11-15 | 2019-04-16 | 中国电子科技集团公司第三十八研究所 | A kind of broadband circle polarized Shared aperture communication and navigation array antenna |
| CN110459865A (en) * | 2019-07-09 | 2019-11-15 | 哈尔滨工程大学 | A kind of circular polarisation single layer paster antenna that Ka wave band is small-sized |
| CN110854544A (en) * | 2019-11-29 | 2020-02-28 | 电子科技大学 | Low-RCS phased-array antenna and RCS reduction method |
| CN115023857A (en) * | 2020-01-06 | 2022-09-06 | 原田工业株式会社 | Feed circuit for circularly polarized antenna |
| CN114976597A (en) * | 2022-05-26 | 2022-08-30 | 福耀玻璃工业集团股份有限公司 | Vehicle-mounted glass integrated with antenna, manufacturing method and vehicle |
| CN114976597B (en) * | 2022-05-26 | 2024-03-01 | 福耀玻璃工业集团股份有限公司 | Vehicle-mounted glass integrated with antenna, manufacturing method and vehicle |
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