CN105428798A - Combined double wideband circularly-polarized antenna unit - Google Patents
Combined double wideband circularly-polarized antenna unit Download PDFInfo
- Publication number
- CN105428798A CN105428798A CN201610053007.9A CN201610053007A CN105428798A CN 105428798 A CN105428798 A CN 105428798A CN 201610053007 A CN201610053007 A CN 201610053007A CN 105428798 A CN105428798 A CN 105428798A
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- China
- Prior art keywords
- period
- time
- gradual change
- antenna
- polarized antenna
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Abstract
The invention discloses a combined double wideband circularly-polarized antenna unit which comprises a self-supporting and grounding integrated structure and a crisscross array, wherein a slotted outer conductor is vertically arranged at the central position of the self-supporting and grounding integrated structure; the crisscross array is arranged at the top end of the slotted outer conductor; the self-supporting and grounding integrated structure specifically comprises four antenna bent and gradient arrays; a small head end of each antenna bent and gradient array is connected by a metal column; the large head end of each antenna bent and gradient array is directly connected with a floor board; power divider units 6 are arranged on the back sides of four antenna bent and gradient arrays 4 by adopting a back-to-back mode; the power divider units 6 are connected with the other ends of the corresponding metal columns 5. According to the combined double wideband circularly-polarized antenna unit disclosed by the invention, the problems that an communication antenna is narrow in frequency band and in wave beam, the system is complex and is large in occupied area, and a plurality of antennae are integrated together to cause serious mutual interference existing in the prior art are solved.
Description
Technical field
The invention belongs to satellite communication, navigation antenna technical field, be specifically related to the two wide band circularly polarized antenna element of a kind of combination.
Background technology
Current circular polarized antenna mainly contains the structures such as microband paste, helical antenna, crossed dipole.
Micro-strip paster antenna beamwidth is wide, low elevation angle performance is good, but by medium sheet material thickness limits, limited bandwidth, usual single layer microstrip antenna, bandwidth only has 1-2%, even if adopt the micro-band plate of plurality of layers stacking, energy broadening finite bandwidth, can reach an octave, but cost remains high, and is typically used as broad beam narrow-band transmission of wireless signals.
The beamwidth of helical antenna is narrower, and low elevation angle performance is bad, and it is comparatively large to take volume, is unfavorable for the system integration, is generally used for the transmission of narrow beam phasing signal.
Right-angled intersection a period of time beamwidth of antenna is wide, and therefore low elevation angle performance is good, but it is large to take volume, and narrow bandwidth, also only can be used for the narrow frequent band transmission of wireless signals of broad beam.
Above-mentioned antenna does not possess broadband, the ability of broad beam circularly polarized signal transmission.As everyone knows, bandwidth, then the information capacity can transmitted is large, and wave beam is wide, then the ability accepting all directions angle signal is strong.
The existing dipper system satellite fix of current China and communication antenna, the form that the several narrow frequency micro-strip paster antenna of usual employing or micro-strip paster antenna add crossed dipole antenna realizes multiple spot covering frequently, system complex, take volume large, it is more that multiple antenna integrates interference mutually, affect electrical property, assembling is inconvenience also.
Summary of the invention
The object of this invention is to provide the two wide band circularly polarized antenna element of a kind of combination, solve that the communication antenna frequency band existed in prior art is narrow, wave beam is narrow and system complex, take the problem that large, the multiple antenna of volume integrates mutual serious interference.
The technical solution adopted in the present invention is, the two wide band circularly polarized antenna element of a kind of combination, comprise self-supporting ground connection integrative-structure and right-angled intersection a period of time, the center position of described self-supporting ground connection integrative-structure is vertically installed with fluting outer conductor, described right-angled intersection a period of time be placed in fluting outer conductor top.
Feature of the present invention is also,
Self-supporting ground connection integrative-structure is specially: comprise 4 antennas and bend gradual change a period of time, the little head end that each antenna bends gradual change a period of time is wherein connected one end with metal column respectively, the stub end that each antenna bends gradual change a period of time is directly connected with floor, the back side that 4 antennas bend gradual change a period of time adopts mode to be back-to-back provided with power splitter unit, and power splitter unit is connected with the metal column other end.
Each antenna bends the sheet warp architecture that gradual change a period of time is the metal one machine-shaping of ascending gradual change.
Adjacent two antennas phase difference bent between gradual change a period of time is 90 degree.
It is 20 ~ 50 degree that each antenna bends the angle that the little head end in gradual change a period of time and horizontal plane form.
Power splitter unit forms one point of four power divider structure by 3 one-to-two power splitters, realizes 1 input, 4 outputs.
The invention has the beneficial effects as follows, the two wide band circularly polarized antenna element of a kind of combination, adopt Promethean self-supporting ground connection integrative-structure, antenna bends gradual change a period of time and is directly connected with floor, the processing of metal one, the crooked radian that antenna bends gradual change a period of time adopts mould to ensure, round and smooth, realize working band wide, lobe width is wide, circular polarization characteristics is good, requirement on machining accuracy is not high, easy for installation, low cost and other advantages, be highly suitable for high performance satellite navigation ground receiving equipment, such as vehicle, boats and ships, aircraft, trains etc. are the satellite navigation of carrier.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation combining two wide band circularly polarized antenna element of the present invention;
Fig. 2 is a kind of structural representation combining self-supporting ground connection integrative-structure in two wide band circularly polarized antenna element of the present invention;
Fig. 3 is feeding network power splitter cell schematics in the two wide band circularly polarized antenna element of the present invention's one combination;
Fig. 4 is the two wide band circularly polarized antenna circular polarization radiation directional diagram of the present invention's one combination;
Fig. 5 is that the two wide band circularly polarized antenna low frequency four unit gradual change of the present invention's one combination bends a period of time standing wave reflection coefficient analogous diagram;
Fig. 6 is the two wide band circularly polarized antenna high frequency right-angled intersection a period of time standing wave stickogram of the present invention's one combination.
In figure, 1. self-supporting ground connection integrative-structure, 2. right-angled intersection a period of time, outer conductor of 3. slotting, 4. antenna bends gradual change a period of time, 5. metal column, 6. power splitter unit, 7. one-to-two power splitter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The two wide band circularly polarized antenna element of the present invention's one combination, structure as shown in Figure 1, comprise self-supporting ground connection integrative-structure 1 and right-angled intersection a period of time 2, the center position of self-supporting ground connection integrative-structure 1 is vertically installed with fluting outer conductor 3, right-angled intersection a period of time 2 be placed in fluting outer conductor 3 top, wherein, as shown in Figure 2, self-supporting ground connection integrative-structure 1 is specially: comprise 4 antennas and bend gradual change a period of time 4, the little head end that each antenna bends gradual change a period of time 4 is connected respectively by with wherein one end of metal column 5, the stub end that each antenna bends gradual change a period of time 4 is directly connected with floor, the back side that 4 antennas bend gradual change a period of time 4 adopts mode to be back-to-back provided with power splitter unit 6, power splitter unit 6 is connected with metal column 5 other end, each antenna bends the sheet warp architecture that gradual change a period of time 4 is the metal one machine-shaping of ascending gradual change, adjacent two antennas phase difference bent between gradual change a period of time 4 is 90 degree, it is 20 ~ 50 degree that each antenna bends the angle that the little head end in gradual change a period of time 4 and horizontal plane form, as shown in Figure 3, power splitter unit 6 forms one point of four power divider structure by 3 one-to-two power splitters 7, realize an input four outputs.
The two wide band circularly polarized antenna element of the present invention's one combination, operation principle is as follows:
4 element antennas that have employed self-supporting ground connection integrative-structure 1 bend gradual change a period of time 4, with the metal column 5 of 4 90 degree of phase differences to they order feeds, realize broadband circle polarized radiation characteristic, metal column 5 is connected the phase difference that realizes feed with power splitter unit 6 and constant power distributes, and this structure ensure that the broadband circle polarized radiation of 1.2GHZ-1.7GHZ frequency range.
Have employed coaxial line, outer conductor fluting quarter-wave, define 180 degree of phase differences, 90 degree of right-angled intersection a period of time 2 are coordinated to form circular polarization, as shown in Figure 1, this structure ensures 2500MHZ frequency range, can form the broadband circle polarized radiation of 200MHz bandwidth, and both combine the use of the navigation antenna working frequency range that can ensure the existing Big Dipper of current China and other various standards.
The two wide band circularly polarized antenna element of the present invention's one combination, 4 antennas of self-supporting ground connection integrative-structure 1 bend between gradual change a period of time 4 and 4 feed metal posts 5 and adopt welding to connect, as shown in Figure 2, self-supporting ground connection integrative-structure 1 is Promethean, antenna bends gradual change a period of time 4 and is directly connected with floor, the processing of metal one, the crooked radian that antenna bends gradual change a period of time 4 adopts mould to ensure, round and smooth, insensitive to angle of bend error, antenna bends the tip in gradual change a period of time 4 and metal column 5 is weldingly connected, and between ground level angle 20 ~ 50 degree, the each branch road of power splitter unit 6 controls microstrip line length and realizes 90 degree of phase shifts successively, realize left-handed or right-handed circular polarization radiation.Power splitter each allocation units available bandwidth electric bridge substitutes, and can realize left-handed and circular polarization radiation that is dextrorotation simultaneously.Welding is adopted to be connected between power splitter unit 6 with metal column 5.Right-angled intersection a period of time 2 adopts coaxial outer conductor fluting quarter-wave to form 180 degree of phase differences to form circular polarization.Welding is adopted to connect between right-angled intersection a period of time 2 and fluting outer conductor 3.During assembling, upper strata is antenna stack, and lower floor is microstrip power divider layer, and power splitter unit 6 is back-to-back to be mounted on antenna, main bends gradual change a period of time 4 to four element antennas to provide feed.Coaxial line fluting outer conductor 3 is by screw or be weldingly fixed on antenna, welding is adopted to be connected between right-angled intersection a period of time 2 with coaxial line internal recessing outer conductor 3, the coaxial inner conductor other end is connected with microstrip line, coordinate connecter type and the position of cavity and requirement, select the cable of suitable types to connect and draw.
The two wide band circularly polarized antenna element of the present invention's one combination, standing wave reflection coefficient analogous diagram as shown in Figure 5, standing wave stickogram as shown in Figure 6, as seen from the figure, this antenna standing wave reflection coefficient broader bandwidth, in 1.2-1.7/2.4-2.6GHZ frequency range, be less than-10dB, antenna circular polarization radiation directional diagram is as shown in Figure 4, this antenna circular polarization radiation characteristic good, possesses larger gain equally in the situation of the low elevation angle.Known in conjunction with foregoing, this antenna is the two wide band circularly polarized ideal solution that can be implemented under 1.2-1.7/2.4-2.6GHZ frequency range.
Claims (6)
1. the two wide band circularly polarized antenna element of combination, it is characterized in that, comprise self-supporting ground connection integrative-structure (1) and right-angled intersection a period of time (2), the center position of described self-supporting ground connection integrative-structure (1) is vertically installed with fluting outer conductor (3), and described right-angled intersection a period of time (2) is placed in the top of fluting outer conductor (3).
2. the two wide band circularly polarized antenna element of one combination according to claim 1, it is characterized in that, described self-supporting ground connection integrative-structure (1) is specially: comprise 4 antennas and bend gradual change a period of time (4), the little head end that each antenna bends gradual change a period of time (4) connects respectively by a metal column (5), the stub end that each antenna bends gradual change a period of time (4) is directly connected with floor, the back side that described 4 antennas bend gradual change a period of time (4) adopts mode to be back-to-back provided with power splitter unit (6), power splitter unit (6) is connected with metal column (5) other end.
3. the two wide band circularly polarized antenna element of one combination according to claim 2, is characterized in that, described each antenna bends the sheet warp architecture of the metal one machine-shaping that gradual change a period of time (4) is ascending gradual change.
4. the two wide band circularly polarized antenna element of one combination according to claim 2, it is characterized in that, described adjacent two antennas phase difference bent between gradual change a period of time (4) is 90 degree.
5. the two wide band circularly polarized antenna element of one combination according to claim 2, is characterized in that, it is 20 ~ 50 degree that described each antenna bends the angle that the little head end in gradual change a period of time (4) and horizontal plane form.
6. the two wide band circularly polarized antenna element of one combination according to claim 2, it is characterized in that, described power splitter unit (6) forms one point of four power divider structure by 3 one-to-two power splitters (7), realizes an input four outputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053007.9A CN105428798A (en) | 2016-01-26 | 2016-01-26 | Combined double wideband circularly-polarized antenna unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053007.9A CN105428798A (en) | 2016-01-26 | 2016-01-26 | Combined double wideband circularly-polarized antenna unit |
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| Publication Number | Publication Date |
|---|---|
| CN105428798A true CN105428798A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610053007.9A Pending CN105428798A (en) | 2016-01-26 | 2016-01-26 | Combined double wideband circularly-polarized antenna unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167160A (en) * | 2018-08-22 | 2019-01-08 | 广州中海达卫星导航技术股份有限公司 | Antenna assembly and GNSS measure antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003347833A (en) * | 2002-05-23 | 2003-12-05 | Hitachi Media Electoronics Co Ltd | Microstrip antenna |
| CN2919563Y (en) * | 2006-02-20 | 2007-07-04 | 西安海天天线科技股份有限公司 | Triple-frequency broad circular polarized antenna |
| CN203026636U (en) * | 2012-11-16 | 2013-06-26 | 西安红叶通讯科技有限公司 | Wide-band wide-beam circularly polarized antenna |
| CN205319300U (en) * | 2016-01-26 | 2016-06-15 | 西安红叶通讯科技有限公司 | Two wide band circular polarized antenna unit devices of combination |
-
2016
- 2016-01-26 CN CN201610053007.9A patent/CN105428798A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003347833A (en) * | 2002-05-23 | 2003-12-05 | Hitachi Media Electoronics Co Ltd | Microstrip antenna |
| CN2919563Y (en) * | 2006-02-20 | 2007-07-04 | 西安海天天线科技股份有限公司 | Triple-frequency broad circular polarized antenna |
| CN203026636U (en) * | 2012-11-16 | 2013-06-26 | 西安红叶通讯科技有限公司 | Wide-band wide-beam circularly polarized antenna |
| CN205319300U (en) * | 2016-01-26 | 2016-06-15 | 西安红叶通讯科技有限公司 | Two wide band circular polarized antenna unit devices of combination |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167160A (en) * | 2018-08-22 | 2019-01-08 | 广州中海达卫星导航技术股份有限公司 | Antenna assembly and GNSS measure antenna |
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Application publication date: 20160323 |