CN202585719U - Four-feed four-arm plane slit spiral antenna - Google Patents
Four-feed four-arm plane slit spiral antenna Download PDFInfo
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- CN202585719U CN202585719U CN 201120159594 CN201120159594U CN202585719U CN 202585719 U CN202585719 U CN 202585719U CN 201120159594 CN201120159594 CN 201120159594 CN 201120159594 U CN201120159594 U CN 201120159594U CN 202585719 U CN202585719 U CN 202585719U
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Abstract
The utility model provides a four-feed four-arm plane slit spiral antenna, comprising a radiation unit (3), a microstrip feed network (6), a microstrip feed line set (5) and a back cavity (4), wherein the radiation unit is a four-arm plane printing slit spiral line structure distributed in 0 DEG, 90 DEG, 180 DEG and 270 DEG; the microstrip feed line set feeds power for the coupling of the four-arm plane printing slit spiral line through four microstrip lines; the radiation unit is fixed on a combined high resistance plane formed by a three-dimensional choking flow ring ground and a one-dimensional electromagnetic band slit plate through the back cavity; an opening position of the back cavity is provided with a double face copper clad substrate; the four-arm plane printing slit spiral line is arranged on a front surface of the double face copper clad substrate and a back surface of the substrate is provided with four horizontal strip lines; one ends of the four strip lines are respectively in connection with strip lines of microstrip lines and the other ends are in connection with an output terminal of a microstrip feed network. The antenna possesses the advantages of wide frequency band, high radiation efficiency, relative small dimension, light weight and low costs and can be used for exploration and common position measurement.
Description
Technical field
The utility model belongs to antenna technical field, particularly a kind of four feedbacks, four arm plane gap spiral shells
Revolve antenna, can be used for GPS GNSS geodesic survey.
Background technology
In recent years, satellite navigation had obtained development rapidly, GPS of USA abroad; Expand to the L5 frequency range by L1, L2 frequency range, China is independent to have built up the Big Dipper No. one, utilizes independent intellectual property right again before 3 years; Quickening one's step to build and comprising B1; The satellite navigation system of the BD2 of B2 and B3 for extremely, has 8 navigation satellites lift-offs up till now.The many users that are used for the geodesic survey type on the market need frequency of utilization both to comprise L1/L2 and the L5 frequency range of GPS, and the B1/B2/B3 of China BD2 also will comprise the multimode multifrequency high-precision antenna of the Muscovite GLONASS and the Galileo in Europe.This antenna not only wants frequency range wide, and the stable phase center of 1.5～2mm will be arranged, and disturbs the measure error that causes in order to control multipath, removes to require antenna to have low axial ratio, and high front and back ratio outside the electrical quantitys such as big rolloff-factor, also will have the ability of controlling surface wave.For this reason, prior art adopts two arms or four arm flat helical antennas to realize broadband, realizes that with travelling-wave annular leaky wave microstrip line four feedbacks or many feedbacks realize low phase center.Though can realize many feedbacks with travelling-wave annular leaky wave microstrip line, because the feeder terminal terminating resistor causes the reduction of antenna-feedback system efficient, add that antenna back of the body chamber do not have the high resistant plane, make surface wave propagation and edge diffraction, be prone to produce multipath and disturb and reduce certainty of measurement.
To this defective; Prior art reduces multipath with three-dimensional conical chokes ring ground usually and disturbs the measure error that causes; But the conical chokes ring of this three-dimensional commonly used ground is oversize owing to it, preponderance, and cost is high; Hope to use size little, in light weight and can not satisfy many portable users, the requirement that cost is low.
The utility model content
The purpose of the utility model provides a kind of four feedbacks, four arm plane gap helical antennas to the deficiency of above-mentioned prior art, to improve radiation efficiency and bandwidth, realizes controlling to what multipath disturbed,
Reduce volume simultaneously, reduce cost.
For realizing above-mentioned purpose, the utility model comprises radiating element, microstrip feed network, microstrip feed line group and back of the body chamber, it is characterized in that:
Radiating element adopts four arm planographic slits of 0 °, 90 °, 180 ° and 270 ° layout
Helix structure, the microstrip feed line group is this four arms planographic slit helix coupling feed through four microstrip lines;
Radiating element is fixed on the combination high resistant plane that is made up of three-dimensional chokes ring ground and one dimension electro-magnetic bandgap plate through back of the body chamber;
The opening part in back of the body chamber is equipped with the double-sided copper-clad substrate; Four arm planographic slit helixes are arranged on the front of double-sided copper-clad substrate; The back side of this substrate is provided with four level band lines; One end of these four level band lines is connected with the band line of microstrip line respectively, and the other end is connected with the output of microstrip feed network.
Above-mentioned four feedbacks, four arm plane gap helical antennas is characterized in that the outer rim of said one dimension electro-magnetic bandgap plate adopts rectangle or triangle or zigzag periodic structure.
Above-mentioned four feedbacks, four arm plane gap helical antennas is characterized in that described three-dimensional chokes ring ground adopts integrative-structure at the bottom of three horizontal metal rings and three surface grooves, and one dimension electro-magnetic bandgap plate is positioned on the baseplane on this three-dimensional chokes ring ground.
Above-mentioned four feedbacks, four arm plane gap helical antennas is characterized in that described three-dimensional chokes ring ground adopts integrative-structure at the bottom of three vertical metal rings and three surface grooves, and one dimension electro-magnetic bandgap plate is positioned on the end face on this three-dimensional chokes ring ground.
Above-mentioned four feedbacks, four arm plane gap helical antennas is characterized in that described three-dimensional chokes ring ground adopts integrative-structure at the bottom of three horizontal metal rings and three planar slots, and one dimension electro-magnetic bandgap plate is positioned on the baseplane on this three-dimensional chokes ring ground.
Above-mentioned four present four arm plane gap helical antennas, it is characterized in that the planographic slit helix of said each arm, form by straight line portion and circular arc portion near the center of circle, and terminal taper gradual change.
Above-mentioned four feedbacks, four arm plane gap helical antennas is characterized in that said microstrip feed network is made up of second-class power splitter of anti-phase and a pair of 3db electric bridge, are that four feedbacks, four arm plane gap helical antennas provide amplitude to equate and 0 °, 90 °, and 180 °, 270 ° phase place.
Above-mentioned four feedbacks, four arm plane gap helical antennas is characterized in that the ground one end via hole of said microstrip line links to each other with the front of substrate, and the other end links to each other with the ground of microstrip feed network.
The utility model is because to adopt the coupling feeding technique be the four arm planographic slit helical antenna feeds that have shallow back of the body chamber, both broadening the antenna impedance bandwidth, improved antenna radiation efficiency, reduced antenna volume again.Simultaneously owing to adopt the high resistant ground of horizontal or vertical three-dimensional chokes ring ground and the combination of one dimension electro-magnetic bandgap; Particularly having adopted bottom land is the three-dimensional chokes ring ground on inclined-plane; Greatly broadening the bandwidth on high resistant ground; Overcome the conical chokes ring of existing three-dimensional ground because it is oversize, preponderance, the shortcoming that cost is high.
Actual measurement shows: the frequency band of the utility model is 1100-1620MHz.
The purpose of the utility model, characteristic and advantage elaborate below in conjunction with accompanying drawing
Description of drawings
Fig. 1 is the first example structure sketch map of the utility model, wherein:
1 (a) is sectional drawing,
1 (b) is front view;
Fig. 2 is the utility model radiative unit structure figure, wherein:
2 (a) are the structural representations of plane four arm Archimedean slit helixes,
2 (b) are the microstrip feed line sketch mapes;
Fig. 3 is the structural representation of a microstrip feed line of the utility model;
Fig. 4 is the utility model feeding network network side block diagram;
Fig. 5 is the utility model second example structure sketch map, wherein:
5 (a) are sectional drawing,
5 (b) are front view;
Fig. 6 is the utility model the 3rd example structure sketch map.
Embodiment
Embodiment 1
See figures.1.and.2, the utility model mainly is made up of radiating element 3, microstrip feed network 6, microstrip feed line 5, back of the body chamber 4, low noise amplifier 8 and combination high resistant plane.Wherein:
Radiating element 3 adopts four arm planographic slit helix structures with 0 °, 90 °, 180 ° and 270 ° layout, is arranged on the front 36 of substrate 30, and the back side of substrate 30 is provided with four level band lines 40,41,42,43.The planographic slit spiral of each arm is formed by straight line portion and circular arc portion near the center of circle; And terminal taper gradual change to reduce reflected wave, improves axial ratio; Shown in Fig. 2 a, promptly the first arm is made up of with circular arc portion 20 and terminal gradual change part 28 straight line portion 24 near the center of circle; Second arm is made up of with circular arc portion 21 and terminal gradual change part 29 straight line portion 25 near the center of circle; The 3rd arm is made up of with circular arc portion 22 and terminal gradual change part 32 straight line portion 26 near the center of circle; The 4th arm is made up of with circular arc portion 23 and terminal gradual change part 31 straight line portion 27 near the center of circle.
Microstrip feed line 5 is made up of four microstrip lines 51,52,53,54, and wherein microstrip line 51 is made up of band line 511 and ground 512, and is as shown in Figure 3; Microstrip line 52 is made up of band line 521 and ground 522; Microstrip line 53 is made up of band line 531 and ground 532; Microstrip line 54 is made up of band line 541 and ground 532.The upper end of band line 511,521,531,541 links to each other with four level band lines 40,41,42,43 at the back side of substrate 30 respectively, and its lower end is connected with the input of microstrip feed network 6 respectively.The ground one end via hole of four microstrip lines 51,52,53,54 links to each other with the front 36 of substrate, and the other end links to each other with the ground of microstrip feed network 6.
Microstrip feed network 6 is made up of second-class power splitter of anti-phase 100 and a pair of 3db electric bridge 101,102, is that four arm planographic slit helical antennas provide amplitude to equate and 0 °, 90 °, 180 °, 270 ° phase place, and is as shown in Figure 4.
Combination high resistant plane is made up of three-dimensional chokes ring ground 2 and one dimension electro- magnetic bandgap plate 18,13,12,11 integrative-structure at the bottom of 14,15,16 and three surface grooves of these three-dimensional chokes ring ground 2 three horizontal metal rings of employing, but be not limited to three.The width w1 of groove is λ/16, and the height h1 of becket is λ/4, and these one dimension electro-magnetic bandgap plate 18 outer rims adopt rectangle periodic structure 17, shown in Fig. 1 b;
Back of the body chamber 4, the employing degree of depth is the circular shallow back of the body chamber of λ/14, is the endless metal wall around it, is similar to the cup shape, this back of the body chamber aspect ratio uses the degree of depth to reduce 3.5 times as the track spiral of λ/4, becomes one-way radiation with the bidirectional with helical antenna.Substrate 30 levels are installed in the opening part in back of the body chamber 4, and low noise amplifier 8 is fixed on the back side in back of the body chamber 4.Microstrip feed line 5 is plugged in the below of substrate 30, and microstrip feed network 6 is positioned at the bottom in back of the body chamber 4, and its output is connected with the input of low noise amplifier 8.Back of the body chamber 4 is installed in the top on the combination high resistant plane that is made up of three-dimensional chokes ring ground 2 and one dimension electro-magnetic bandgap plate 18, disturbs the measure error that causes further to control multipath.The radio frequency socket 10 that is positioned on the one dimension electro-magnetic bandgap plate 18 is connected with the output of low noise amplifier 8 through radio frequency cable 9.The below of one dimension electro-magnetic bandgap plate 18 is provided with fixing device for installing 19, and the user installs and uses its antenna through this fixture 19.
Embodiment 2
With reference to Fig. 5, this instance is three vertical metal rings 14 of its three-dimensional chokes ring ground (2) of making up high resistant plane employing with the difference of instance 1
,, 15
,, 16
,With 13,12,11 integrative-structure at the bottom of three surface grooves, but be not limited to three; The outer rim of one dimension electro-magnetic bandgap plate 18 adopts triangular shaped periods structure 17
,, this one dimension electro-magnetic bandgap plate 18 is positioned on the end face on this three-dimensional chokes ring ground 2.Other structures are identical with instance 1.
Embodiment 3
With reference to Fig. 6, the difference of this instance and instance 1 is that the three-dimensional chokes ring ground 2 on its combination high resistant plane adopts at the bottom of 14,15,16 and three planar slots of three horizontal metal rings 13
,, 12
,, 11
,Integrative-structure, but be not limited to three; The outer rim 17 of one dimension electro-magnetic bandgap plate 18 adopts triangle or other periodic structure, and one dimension electro-magnetic bandgap plate 18 is positioned at the bottom surface on this three-dimensional chokes ring ground 2.Other structures are identical with instance 1.
The utility model is not limited to above-mentioned instance; Obviously; Can make the combination of multiple structure according to the thought of the utility model, for example one dimension electromagnetic bandgap structure 18 can be positioned at the baseplane on three-dimensional chokes ring ground 2, also can be positioned at the plane, top on three-dimensional chokes ring ground; The outer rim of one dimension electromagnetic bandgap structure 18 can adopt the outer other forms of periodic structure of this instance, and any combination according to the utility model thought is all at the row of the protection of the utility model.
Claims (8)
1. feedback four arm plane gap helical antennas comprise radiating element (3), microstrip feed network (6), microstrip feed line group (5) and back of the body chamber (4), and it is characterized in that: radiating element (3) adopts four arms (20 of 0 °, 90 °, 180 ° and 270 ° layout; 21,22,23) planographic slit helix structure; Microstrip feed line group (5) is through four microstrip lines (51; 52,53,54) be this four arms planographic slit helix coupling feed;
Radiating element (3) is fixed on the combination high resistant plane that is made up of three-dimensional chokes ring ground (2) and one dimension electro-magnetic bandgap plate (18) through back of the body chamber (4);
The opening part in back of the body chamber 4 is equipped with double-sided copper-clad substrate (30), and four arm planographic slit helixes are arranged on the front (36) of double-sided copper-clad substrate (30), and the back side of this substrate is provided with four level band lines (40,41; 42,43), an end of these four level band lines respectively with microstrip line (51,52; 53,54) band line (511,521; 531,541) connect, the other end is connected with the output of microstrip feed network (6).
2. four feedbacks, four arm plane gap helical antennas according to claim 1 is characterized in that the outer rim of one dimension electro-magnetic bandgap plate (18) adopts rectangle or triangle or zigzag periodic structure (17).
3. four feedbacks, four arm plane gap helical antennas according to claim 1; It is characterized in that three horizontal metal rings (14 of three-dimensional chokes ring ground (2) employing; 15,16) and at the bottom of three surface grooves (13,12; 11) integrative-structure, one dimension electro-magnetic bandgap plate (18) is positioned on the baseplane on this three-dimensional chokes ring ground (2).
4. four feedbacks, four arm plane gap helical antennas according to claim 1; It is characterized in that three vertical metal rings (14 ' of three-dimensional chokes ring ground (2) employing; 15 ', 16 ') and at the bottom of three surface grooves (13,12; 11) integrative-structure, one dimension electro-magnetic bandgap plate (18) is positioned on the end face on this three-dimensional chokes ring ground (2).
5. four feedbacks, four arm plane gap helical antennas according to claim 1; It is characterized in that three horizontal metal rings (14 of three-dimensional chokes ring ground (2) employing; 15,16) and at the bottom of three planar slots (13 ', 12 '; 11 ') integrative-structure, one dimension electro-magnetic bandgap plate (18) is positioned on the baseplane on this three-dimensional chokes ring ground (2).
6. according to claim 1 four present four arm plane gap helical antennas, it is characterized in that the planographic slit helix of each arm, form by straight line portion and circular arc portion near the center of circle, and terminal taper gradual change.
7. four feedbacks, four arm plane gap helical antennas according to claim 1; It is characterized in that microstrip feed network (6) is by second-class power splitter of anti-phase (100) and a pair of 3db electric bridge (101; 102) forming, is that four feedbacks, four arm plane gap helical antennas provide amplitude to equate and 0 ° 90 °; 180 °, 270 ° phase place.
8. according to claim 1 or 6 described four feedbacks, four arm plane gap helical antennas, it is characterized in that the ground one end via hole of microstrip line (51,52,53,54) links to each other with the front (36) of substrate, the other end links to each other with the ground of microstrip feed network (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120159594 CN202585719U (en) | 2011-05-18 | 2011-05-18 | Four-feed four-arm plane slit spiral antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120159594 CN202585719U (en) | 2011-05-18 | 2011-05-18 | Four-feed four-arm plane slit spiral antenna |
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| Publication Number | Publication Date |
|---|---|
| CN202585719U true CN202585719U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120159594 Expired - Lifetime CN202585719U (en) | 2011-05-18 | 2011-05-18 | Four-feed four-arm plane slit spiral antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN202585719U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280625A (en) * | 2013-04-26 | 2013-09-04 | 湖南航天环宇通信科技有限责任公司 | GNSS (Global Navigation Satellite System) high-precision measuring antenna |
| 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 |
| CN103904408A (en) * | 2014-03-11 | 2014-07-02 | 西安电子科技大学昆山创新研究院 | Stable phase center measurement antenna |
| CN104022360A (en) * | 2014-04-24 | 2014-09-03 | 江苏科技大学 | Planar helical antenna of combined structure |
| CN104836026A (en) * | 2015-05-25 | 2015-08-12 | 深圳市华颖泰科电子技术有限公司 | Low-multipath measuring type antenna |
| CN105044736A (en) * | 2015-05-28 | 2015-11-11 | 北京安腾天汇通信技术有限公司 | Method of single antenna for suppressing multipath signals by using sequence of spatial filtering |
| US9692141B2 (en) | 2013-08-09 | 2017-06-27 | Orban Microwave Products Nv | Antenna array of inverted-L elements optionally for use as a base station antenna |
| CN107579339A (en) * | 2017-09-11 | 2018-01-12 | 电子科技大学 | A kind of spiral near field antenna with group's reading performance |
| 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 |
| CN113161735A (en) * | 2021-04-02 | 2021-07-23 | 福耀玻璃工业集团股份有限公司 | Be applied to on-vehicle location antenna and vehicle glass |
| CN114665258A (en) * | 2022-04-06 | 2022-06-24 | 深圳市南斗星科技有限公司 | Positioning antenna resisting multipath interference |
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2011
- 2011-05-18 CN CN 201120159594 patent/CN202585719U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280625B (en) * | 2013-04-26 | 2016-04-06 | 湖南航天环宇通信科技股份有限公司 | GNSS high-acruracy survey antenna |
| CN103280625A (en) * | 2013-04-26 | 2013-09-04 | 湖南航天环宇通信科技有限责任公司 | GNSS (Global Navigation Satellite System) high-precision measuring antenna |
| US9692141B2 (en) | 2013-08-09 | 2017-06-27 | Orban Microwave Products Nv | Antenna array of inverted-L elements optionally for use as a base station antenna |
| 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 |
| CN103904408A (en) * | 2014-03-11 | 2014-07-02 | 西安电子科技大学昆山创新研究院 | Stable phase center measurement antenna |
| CN104022360A (en) * | 2014-04-24 | 2014-09-03 | 江苏科技大学 | Planar helical antenna of combined structure |
| CN104022360B (en) * | 2014-04-24 | 2016-06-08 | 江苏科技大学 | Composite construction flat helical antenna |
| CN104836026A (en) * | 2015-05-25 | 2015-08-12 | 深圳市华颖泰科电子技术有限公司 | Low-multipath measuring type antenna |
| CN105044736A (en) * | 2015-05-28 | 2015-11-11 | 北京安腾天汇通信技术有限公司 | Method of single antenna for suppressing multipath signals by using sequence of spatial filtering |
| CN107579339A (en) * | 2017-09-11 | 2018-01-12 | 电子科技大学 | A kind of spiral near field antenna with group's reading performance |
| CN107579339B (en) * | 2017-09-11 | 2019-07-09 | 电子科技大学 | A kind of spiral near field antenna with group's reading performance |
| 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 |
| CN113161735A (en) * | 2021-04-02 | 2021-07-23 | 福耀玻璃工业集团股份有限公司 | Be applied to on-vehicle location antenna and vehicle glass |
| CN114665258A (en) * | 2022-04-06 | 2022-06-24 | 深圳市南斗星科技有限公司 | Positioning antenna resisting multipath interference |
| CN114665258B (en) * | 2022-04-06 | 2024-04-19 | 深圳市南斗星科技有限公司 | Positioning antenna for resisting multipath interference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |