CN203026636U - Wide-band wide-beam circularly polarized antenna - Google Patents
Wide-band wide-beam circularly polarized antenna Download PDFInfo
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- CN203026636U CN203026636U CN 201220603516 CN201220603516U CN203026636U CN 203026636 U CN203026636 U CN 203026636U CN 201220603516 CN201220603516 CN 201220603516 CN 201220603516 U CN201220603516 U CN 201220603516U CN 203026636 U CN203026636 U CN 203026636U
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- antenna
- power divider
- microstrip power
- metal column
- feed metal
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Abstract
The utility model relates to a wide-band wide-beam circularly polarized antenna. The following technical scheme is employed by the utility model that: the structure of the antenna comprises an antenna layer and a microstrip power divider layer under the antenna layer, the antenna layer comprises four bending gradual arrays which are fabricated as a whole body, the four bending gradual arrays are respectively connected with a feed metal column which is connected with a microstrip power divider circuit on the microstrip power divider layer, and the microstrip power divider layer is a microstrip power divider which is divided into four parts. The four bending gradual arrays which are fabricated as a whole body have completely same shapes, the feed metal columns which are connected with the four bending gradual arrays respectively are perpendicular to a horizontal plane and are distributed at a middle part of the whole body of the antenna. The wide-band wide-beam circularly polarized antenna employing the above technical scheme has the following advantages that the novel antenna has the characteristics of wide working frequency band, a large lobe width, good circular polarization characteristics, a low requirement of processing accuracy and convenient installation. The antenna is very suitable for navigation satellite ground receiving equipment with high performance.
Description
Technical field
The present invention relates to field of antenna, relate in particular to the broadband wide beam circular polarized antenna of satellite communication, navigation antenna.
Background technology
Current circular polarized antenna mainly contains the structures such as microband paste, helical antenna, crossed dipole.
The micro-strip paster antenna beamwidth is wide, low elevation angle performance is good, but be subjected to medium sheet material thickness limits, limited bandwidth, single layer microstrip antenna usually, bandwidth only has 1-2%, even adopt the little band stack of plates of a lot of layer, energy broadening finite bandwidth can reach an octave, but cost is high, 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 larger 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 broad beam narrow-band transmission of wireless signals.
Above-mentioned antenna does not possess broadband, the ability of broad beam circularly polarized signal transmission.As everyone knows, bandwidth, the information capacity that can transmit is large, and wave beam is wide, and the ability of accepting all directions angle signal is strong.
China has dipper system satellite fix and communication antenna now at present, usually the form that adopts several narrow frequency micro-strip paster antennas or micro-strip paster antenna to add the crossed dipole antenna realizes that multiple spot covers frequently, system complex, take volume large, it is more that a plurality of antennas integrate the phase mutual interference, affect electrical property, assembling is inconvenience also.If a kind of wide band circular polarized antenna is arranged, can cover the working frequency range of the Big Dipper fully, will have obvious advantage at electrical property and production fit on so.
Summary of the invention
The purpose of invention: for the broadband wide beam circular polarized antenna of the problem of emission that a kind of circularly polarized signal that can solve broadband, broad beam is provided and reception.
In order to reach as above purpose, the present invention takes following technical scheme:
Scheme 1:
The broadband wide beam circular polarized antenna, it is characterized in that, structure comprises the microstrip power divider layer below antenna stack and antenna stack, described antenna stack comprises crooked gradual change a period of time of four integrated making, four crooked gradual change a period of time connect respectively a feed metal column separately, the microstrip power divider circuit that described feed metal column is connected with the microstrip power divider layer connects, and described microstrip power divider layer is the microstrip power divider of a minute four.
The further technical scheme of the present invention is, crooked gradual change a period of time shape of described four integrated making is identical, and the feed metal column that it connects separately distributes perpendicular to horizontal plane and is positioned at the middle part of antenna integral body, passes the total bottom surface in four crooked a period of time.
The further technical scheme of the present invention is, crooked gradual change a period of time surface of described four integrated making is round and smooth.
The further technical scheme of the present invention is, each self-contained tip of crooked gradual change a period of time of described four integrated making, and described tip and the welding of feed metal column, described tip and ground level angle are between the 20-50 degree.
The further technical scheme of the present invention is, described microstrip power divider layer comprises more than onely can control power splitter unit or the broadband electric bridge that microstrip line length realizes 90 degree phase shifts successively, is connected between a plurality of power splitters unit or broadband electric bridge.
The further technical scheme of the present invention is, described power splitter unit or broadband electric bridge have three, and the microstrip power divider circuit of its formation is connected respectively with more than one feed metal column.
The further technical scheme of the present invention is, described microstrip power divider laminating is contained on the total bottom surface in crooked gradual change a period of time of four integrated making.
The further technical scheme of the present invention is, described antenna is integrated processing and manufacturing and directly is connected with the floor, is the self-supporting integrative-structure, described feed metal column does not contact with ground, the via hole of opening on the floor allows the feed metal column pass, and via hole keeps concentric with the feed metal column.
Scheme 2:
Utilize the method for the circular polarization of broadband wide beam circular polarized antenna as above, it is characterized in that, each unit controls microstrip line length of microstrip power divider layer realizes 90 degree phase shifts successively, the microstrip power divider circuit is connected with the feed metal column and is four crooked gradual change a period of time feeds by this feed metal column, realizes left-handed or the right-handed circular polarization radiation.
Adopt as above the present invention of technical scheme, have following beneficial effect: adopted four unit bending gradual change a period of time of self-supporting ground connection integrative-structure, to they while feeds, realized broadband circle polarized radiation characteristic with four metal columns that have 90 degree phase differences.The metal column back realizes that with microstrip power divider the phase difference of feed and constant power distribute.The characteristics such as compared with prior art, it is wide that this new antenna possesses working band, and lobe width is wide, and circular polarization characteristics is good, and requirement on machining accuracy is not high, and is easy for installation.Be highly suitable for high performance satellite navigation ground receiving equipment, such as vehicle, boats and ships, aircraft, train etc.This ability is extremely obvious in the advantage of satellite navigation positioning field.
Description of drawings
Fig. 1 is antenna and feeder pillar schematic diagram;
Fig. 2 is standing wave reflection coefficient analogous diagram;
Fig. 3 is the feeding network schematic diagram;
Fig. 4 is antenna circular polarization radiation directional diagram;
Wherein: 1. crooked gradual change a period of time; 2. feed metal column; 3. power splitter unit.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described;
Four crooked gradual change a period of time 1 of self-supporting ground connection integrative-structure and four feed metal columns 2, between adopt welding to connect, as shown in Figure 1.
Self-supporting ground connection integrative-structure is Promethean, crooked gradual change a period of time 1 of antenna directly is connected with the floor, the processing of metal one, gradual change a period of time crooked radian adopts mould to guarantee, round and smooth getting final product, insensitive to the angle of bend error, most advanced and sophisticated and feed metal column 2 is weldingly connected, and between ground level angle 20-50 degree.
One minute four power splitter of microstrip structure broadband.The microstrip line length of controlling each branch road of power splitter realizes 90 degree phase shifts successively, realizes left-handed or the right-handed circular polarization radiation.Each allocation units available bandwidth electric bridge of power splitter substitutes, and can realize simultaneously left-handed and circular polarization radiation dextrorotation.Microstrip power divider is connected with metal column and is adopted welding to connect, as shown in Figure 2.
During assembling, the upper strata is antenna stack, and lower floor is the microstrip power divider layer, and back-to-back being mounted on antenna of microstrip power divider gets final product.
Actual any satellite ground receiving equipment has own volume to antenna, interface position, and the requirement of mounting means, so the present invention can have various variants in concrete practice process, it does not cause restriction to concrete enforcement of the present invention.
In conjunction with Fig. 3, this antenna standing wave reflection coefficient broader bandwidth as can be known less than 10dB, and can according to the concrete engineering needs, further be optimized in the 1.2-2.6GHz frequency range.Has wider bandwidth with respect to original antenna.
In conjunction with Fig. 4, this antenna circular polarization radiation characteristic good, possess larger gain equally in the situation of the low elevation angle as can be known.
These beneficial effects are that in the past any antenna does not all reach.
Above demonstration and described basic principle of the present invention, principal character and advantage of the present invention.Those skilled in the art should understand the present invention and not be restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in claimed scope.
Claims (8)
1. broadband wide beam circular polarized antenna, it is characterized in that, structure comprises the microstrip power divider layer below antenna stack and antenna stack, described antenna stack comprises crooked gradual change a period of time (1) of four integrated making, four crooked gradual change a period of time (1) connect respectively a feed metal column (2) separately, the microstrip power divider circuit that described feed metal column (2) is connected with the microstrip power divider layer connects, and described microstrip power divider layer is the microstrip power divider of a minute four.
2. broadband wide beam circular polarized antenna as claimed in claim 1, it is characterized in that, (1) shape of crooked gradual change a period of time of described four integrated making is identical, the feed metal column (2) that it connects separately distributes perpendicular to horizontal plane and is positioned at the middle part of antenna integral body, passes the total bottom surface in four crooked a period of time.
3. broadband wide beam circular polarized antenna as claimed in claim 1, is characterized in that, the surface of crooked gradual change a period of time (1) of described four integrated making is round and smooth.
4. broadband wide beam circular polarized antenna as claimed in claim 1, it is characterized in that, each self-contained tip of crooked gradual change a period of time (1) of described four integrated making, described tip and feed metal column (2) welding, described tip and ground level angle are between the 20-50 degree.
5. broadband wide beam circular polarized antenna as claimed in claim 1, it is characterized in that, described microstrip power divider layer comprises the more than one microstrip line length of can controlling and realizes that successively 90 spend power splitter unit or the broadband electric bridge of phase shifts, is connected between a plurality of power splitters unit or broadband electric bridge.
6. broadband wide beam circular polarized antenna as claimed in claim 5, is characterized in that, described power splitter unit or broadband electric bridge have three, and the microstrip power divider circuit of its formation is connected respectively with more than one feed metal column (2).
7. broadband wide beam circular polarized antenna as claimed in claim 1, is characterized in that, described microstrip power divider laminating is contained on the total bottom surface in crooked gradual change a period of time (1) of four integrated making.
8. a described broadband wide beam circular polarized antenna of claim as arbitrary in claim 1-7, it is characterized in that, described antenna is integrated processing and manufacturing and directly is connected with the floor, be the self-supporting integrative-structure, described feed metal column (2) does not contact with ground, the via hole of opening on the floor allows feed metal column (2) pass, and via hole keeps concentric with feed metal column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603516 CN203026636U (en) | 2012-11-16 | 2012-11-16 | Wide-band wide-beam circularly polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603516 CN203026636U (en) | 2012-11-16 | 2012-11-16 | Wide-band wide-beam circularly polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026636U true CN203026636U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603516 Withdrawn - After Issue CN203026636U (en) | 2012-11-16 | 2012-11-16 | Wide-band wide-beam circularly polarized antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN203026636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825081A (en) * | 2012-11-16 | 2014-05-28 | 西安红叶通讯科技有限公司 | Broadband wide wave beam circular polarized antenna and circular polarization method |
| CN105428798A (en) * | 2016-01-26 | 2016-03-23 | 西安红叶通讯科技有限公司 | Combined double wideband circularly-polarized antenna unit |
-
2012
- 2012-11-16 CN CN 201220603516 patent/CN203026636U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825081A (en) * | 2012-11-16 | 2014-05-28 | 西安红叶通讯科技有限公司 | Broadband wide wave beam circular polarized antenna and circular polarization method |
| CN105428798A (en) * | 2016-01-26 | 2016-03-23 | 西安红叶通讯科技有限公司 | Combined double wideband circularly-polarized antenna unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20170922 |