CN105305086A - Anti-interference microstrip array antenna - Google Patents
Anti-interference microstrip array antenna Download PDFInfo
- Publication number
- CN105305086A CN105305086A CN201510724421.3A CN201510724421A CN105305086A CN 105305086 A CN105305086 A CN 105305086A CN 201510724421 A CN201510724421 A CN 201510724421A CN 105305086 A CN105305086 A CN 105305086A
- Authority
- CN
- China
- Prior art keywords
- antenna
- array
- microstrip
- medium substrate
- microstrip antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention brings forward an anti-interference microstrip array antenna, and is especially applied to a Beidou third-generation satellite navigation system. The anti-interference microstrip array antenna employs elliptical microstrip antenna array elements so as to enable mutual coupling between the array elements to be quite low and effectively improve the anti-interference capability of the array antenna. Compared to a conventional rectangular microstrip array antenna, the bandwidth of the anti-interference microstrip array antenna is improved by more than one time, and the requirement of a Beidou third-generation BOC modulation mode can be completely satisfied. The anti-interference microstrip array antenna comprises the N microstrip antenna array elements, a medium substrate and a metal reflection base plate, wherein the microstrip antenna array elements are arranged at the upper surface of the medium substrate according to certain intervals, and the metal reflection base plate is arranged at the lower surface of the medium substrate; and the microstrip antenna array elements are elliptically-shaped for radiating circular polarized waves, and the microstrip antenna array elements are provided with a coaxial feed point for feeding into electromagnetic wave signals.
Description
Technical field
The invention belongs to technical field of satellite navigation, particularly relate to a kind of anti-interference micro-strip array antenna, be applicable to Beidou satellite navigation system, be also applicable to the gps system, the Galileo system in Europe, the various navigational satellite systems of Muscovite GLONASS system that comprise the U.S..
Background technology
China's Beidou satellite navigation system is the 3rd ripe global positioning satellite and communication system after GPS of America and Russian GLONASS.System is made up of vacant terminal, ground surface end and user side, can in the world for all types of user provides high accuracy, highly reliable location, navigation, time service service, and tool short message communication capacity, can be applicable to civil area and the industry fields such as navigation, aviation, measurement mapping, precision positioning.At present, GPS System in USA, Russian GLONASS system, the dipper system of China all adopts the form of circularly polarised wave to launch an artificial satellite signal.Circularly polarised wave has multiple advantage, such as, can be realized the isolation of receiving and transmitting signal by left-right-hand circular polarization, facilitate shipping vehicle to receive in case of motion, also facilitates navigation satellite and neighbouring same track non-navigational satellite to realize polarization-compatible.
Due to satellite-signal, to land power very faint, and be easy to be subject to outer signals interference, therefore the interference free performance of satellite navigation receiving equipment is one of its key index.If the antijamming capability of satellite navigation receiving equipment is inadequate, receiving equipment cisco unity malfunction under complex electromagnetic environment may be caused.Substantially adopt array antenna technique and adaptive beam-forming algorithm to combine at present, eliminate suppression jamming signal, restore available satellite navigation signals, thus improve the ability that satellite navigation receiver resists complicated electromagnetic interference.
In prior art, satellite navigation micro-strip array antenna is generally made up of according to certain layout arrangement mode multiple rectangular microstrip antenna array element.Between bay, electrical property is more consistent, and the electrical property of satellite navigation micro-strip array antenna is better.Compare with Beidou II BPSK modulation, the bandwidth that Big Dipper three generations BOC modulates adds one times, and therefore satellite navigation micro-strip array antenna is higher to bandwidth requirement.And rectangular microstrip array antenna bandwidth of operation is narrow, be only applicable to the modulation system of Beidou II binary phase modulation (BPSK), be difficult to meet Big Dipper three generations and use binary offset carrier (BOC) modulation system to the requirement of bandwidth.
Summary of the invention
The present invention is directed to ordinary rectangular micro-strip array antenna and there is the narrower deficiency of bandwidth, a kind of anti-interference micro-strip array antenna is proposed, be particularly useful for Big Dipper three generations satellite navigation system, adopt oval microstrip antenna element, make the mutual coupling between array element very low, effectively improve the antijamming capability of array antenna; And compare with ordinary rectangular micro-strip array antenna, bandwidth is enhanced about more than once, meet the requirement of Big Dipper three generations BOC modulation system completely.
Technical scheme of the present invention is:
1. an anti-interference micro-strip array antenna, it is characterized in that, comprise N number of microstrip antenna element, medium substrate and metallic reflection base plate, described microstrip antenna element is arranged in above medium substrate at a certain distance, and metallic reflection base plate is arranged at below medium substrate; The shape of described microstrip antenna element is oval, for giving off circularly polarised wave, described microstrip antenna element is arranged coaxial feed point, for feed-in electromagnetic wave signal.
2. the lower surface of lower surface or distance medium substrate that metallic reflection base plate described in is arranged at medium substrate has certain distance; Described oval microstrip antenna element is arranged at the upper surface of medium substrate.
3. described in, the length of the minor axis of oval microstrip antenna element is about
the difference of major axis and minor axis is
between; Wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space, and ε is the dielectric constant of medium substrate.
4. distributing point described in is arranged on the major axis of oval microstrip antenna element and the angular bisector of minor axis.
5. distributing point described in exists to oval microstrip antenna element centre distance
basis on finely tune, fine setting scope is generally no more than 20%; 1 λ is an Antenna Operation center frequency point wavelength in free space, and ε is the dielectric constant of medium substrate.
6. the scope of dielectric substrate thickness described in is selected between 0.01 λ ~ 0.15 λ, to improve radiation efficiency and the bandwidth of operation of antenna.
7. microstrip antenna element described in and air also can be used between metallic reflection base plate to serve as medium substrate.
8. the arrangement mode of microstrip antenna element described in is circular array form, described microstrip antenna element comprises a main array element, all the other are auxiliary array element, and described main array element is positioned at center corresponding to metallic reflection base plate, and described auxiliary array element is distributed in around main array element.
9. described in, auxiliary array element equidistantly distributes on the concentric circles of centered by main array element.
10. the distance described between main array element center and auxiliary array element center is preferably 1/2 λ, and wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space.
Minimum range described in 11. between main array element center and auxiliary array element center is 1/4 λ, and wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space.
The arrangement mode of microstrip antenna element described in 12. is quadrate array form, described microstrip antenna element comprises 4 array elements, the center of 4 array elements forms a square, described foursquare center corresponds to the center of metallic reflection base plate, foursquare length of side optimal distance is 1/2 λ, beeline is 1/4 λ, and wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space.
Technique effect of the present invention:
The anti-interference micro-strip array antenna of one that the present invention proposes, be particularly useful for Big Dipper three generations satellite navigation system, be made up of multiple microstrip antenna element, microstrip antenna element adopts oval shaped microstrip radiation mode, make the mutual coupling between array element very low, effectively improve the antijamming capability of array antenna; Further, compare with ordinary rectangular micro-strip array antenna, bandwidth is enhanced about more than once, and can meet the requirement of Big Dipper three generations BOC modulation system completely.
1. microstrip antenna element of the present invention adopts oval metal radiant panel, and the length of minor axis is about
the difference of major axis and minor axis is
between; Wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space, and ε is the dielectric constant of medium substrate; Compare with ordinary rectangular microstrip antenna element, there is size little, with wide feature; The relative bandwidth (i.e. the beamwidth of antenna/center of antenna frequency) of oval micro-strip array antenna of the present invention is 8%; And rectangular microstrip array antenna relative bandwidth is only 3.5%, ordinary rectangular micro-strip array antenna is compared, bandwidth is more than doubled, for B3 frequency, oval micro-strip array antenna center frequency point of the present invention is 1268.52MHz, and relative bandwidth is 8%, i.e. 101MHz, meet the requirement of Big Dipper three generations BOC modulation system 40.96MHz bandwidth completely, be particularly suitable for Big Dipper three generations satellite navigation system.Just because of this, because array antenna bandwidth of the present invention is about 2 times of required bandwidth, more surplus is had in design, so in batch production, can allow relatively many processing dimension tolerances, material dielectric constant tolerance etc., reduce difficulty and the cost of batch production.
2. circular polarization microstrip antenna array unit of the present invention is right-handed circular polarization, or left-hand circular polarization, is to be determined by oval major axis, relative position between minor axis and distributing point.When the distributing point of circular polarization microstrip antenna of the present invention is on the miter angle bisector of X-axis and Y-axis, antenna axial ratio is best.X-axis is transverse, and Y-axis is in ellipse short shaft situation; Distributing point is 1, and on the miter angle bisector of 3 quadrant X-axis and Y-axis, antenna is left-hand circular polarization antenna; Distributing point is 2, and on the miter angle bisector of 4 quadrant X-axis and Y-axis, antenna is right-handed circular polarization antenna.Y-axis is transverse, and X-axis is in ellipse short shaft situation; Distributing point is 1, and on the miter angle bisector of 3 quadrant X-axis and Y-axis, antenna is right-handed circular polarization antenna; Distributing point is 2, and on the miter angle bisector of 4 quadrant X-axis and Y-axis, antenna is left-hand circular polarization antenna.The relative bandwidth of circular polarization microstrip antenna array unit of the present invention is 8%, and normal axis ratio is 2, has outstanding rejection ability to the multipath reflection ripple in environment for use.(the multipath reflection ripple of right-handed circular polarization signal is left-hand circular polarization ripple, and desirable right-handed circular polarization antenna can not accept left-handed polarized wave).
3. array antenna of the present invention, adopts multiple microstrip antenna element to form.Bay adopts oval shaped microstrip radiation mode, compares with ordinary rectangular microstrip antenna element, and the mutual coupling between array element is lower.The mutual coupling of array element is defined as the signal that an array element receives, and by the interaction between array element, is delivered to other array element.The oval microstrip antenna element of low-cross coupling can spacing between main array element and auxiliary array element less time, alleviate the impact of mutual coupling on aerial array electrical property.
Accompanying drawing explanation
Fig. 1 is anti-interference micro-strip array antenna array element structure schematic diagram of the present invention.
Fig. 2 is the standing wave pattern of anti-interference micro-strip array antenna array element of the present invention.
Fig. 3 is the directional diagram of anti-interference micro-strip array antenna array element of the present invention.
Fig. 4 a is one of anti-interference micro-strip array antenna four array element schematic layout pattern of the present invention.
Fig. 4 b is anti-interference micro-strip array antenna four array element schematic layout pattern two of the present invention.
Fig. 5 is anti-interference micro-strip array antenna five array element schematic layout pattern of the present invention.
Fig. 6 is anti-interference micro-strip array antenna six array element schematic layout pattern of the present invention.
Fig. 7 is anti-interference micro-strip array antenna seven array element schematic layout pattern of the present invention.
Fig. 8 is anti-interference micro-strip array antenna eight array element schematic layout pattern of the present invention.
Reference numeral lists as follows: 1-metallic reflection base plate, 2-distributing point, 3-medium substrate, 4-metal radiant panel.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
A kind of anti-interference micro-strip array antenna, comprise N number of microstrip antenna element, medium substrate and metallic reflection base plate, microstrip antenna element is arranged in above medium substrate at a certain distance, and metallic reflection base plate is arranged at below medium substrate; The shape of microstrip antenna element is oval, for giving off circularly polarised wave, microstrip antenna element is arranged coaxial feed point, for feed-in electromagnetic wave signal.
As shown in Figure 1, be anti-interference micro-strip array antenna array element structure schematic diagram of the present invention.Comprise metal radiant panel 4, medium substrate 3 and metallic reflection base plate 1; Metal radiant panel 4 and metallic reflection base plate 1 be arranged at respectively medium substrate 3 above and below; The shape of metal radiant panel 4 is oval, for giving off circularly polarised wave; Metal radiant panel 4 arranges coaxial feed point 2, for feed-in electromagnetic wave signal.The medium substrate 3 of the present embodiment and metallic reflection base plate 1 are circular, and metallic reflection base plate 1 is arranged at the lower surface of medium substrate 3, also can have certain distance apart from the lower surface of medium substrate 3; Metal radiant panel 4 is arranged at the upper surface of medium substrate 3, metal radiant panel 4 and medium substrate 3 can in the corner of metallic reflection base plate 1, center or Anywhere, in the present embodiment, metal radiant panel 4 and medium substrate 3 are positioned at the center of metallic reflection base plate 1.The length of the minor axis of the oval metal radiant panel 4 of the present embodiment is about
the difference of major axis and minor axis is
between; Wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space, and ε is the dielectric constant of medium substrate.
The mode that oval microstrip antenna element of the present invention realizes circular polarization is, by the distributing point on the miter angle bisector of X-axis and Y-axis, electric field component is divided into X-axis component and Y-axis component.Can any position on metal radiant panel on the situation theory of distributing point, if when distributing point is not on the miter angle bisector of X-axis and Y-axis, electric field component can not be halved, so antenna axial ratio is deteriorated.When distributing point is on the miter angle bisector of X-axis and Y-axis, antenna axial ratio is best.Distributing point to elliptical center apart from constant, to X-axis or Y-axis close, antenna axial ratio be deteriorated.When distributing point is in X-axis or Y-axis, antenna axial ratio approach infinity, antenna becomes linear polarized antenna.Distributing point from miter angle bisector to X-axis or Y-axis close, be that antenna changes the process of linear polarized antenna into gradually from circular polarized antenna.
Oval microstrip antenna element is right-handed circular polarization, or left-hand circular polarization, is to be determined by oval major axis, relative position between minor axis and distributing point.X-axis is transverse, and Y-axis is in ellipse short shaft situation, and distributing point is 1, and on the miter angle bisector of 3 quadrant X-axis and Y-axis, antenna is left-hand circular polarization antenna; Distributing point is 2, and on the miter angle bisector of 4 quadrant X-axis and Y-axis, antenna is right-handed circular polarization antenna.Y-axis is transverse, and X-axis is in ellipse short shaft situation, and distributing point is 1, and on the miter angle bisector of 3 quadrant X-axis and Y-axis, antenna is right-handed circular polarization antenna; Distributing point is 2, and on the miter angle bisector of 4 quadrant X-axis and Y-axis, antenna is left-hand circular polarization antenna.
Along with the position of distributing point is moved to edge along the angular bisector of oval major and minor axis from metal radiant panel center, antenna impedance becomes large gradually.Distributing point is when metal radiant panel center, and antenna impedance levels off to zero ohm, and distributing point is when metal radiant panel edge, and impedance levels off to 300 ohm.When distributing point is suitable to metal radiant panel centre distance, antenna impedance moves to 50 ohm, to realize the impedance matching with other electronic devices.When impedance is mated completely, signal transmission loss is minimum.General distributing point exists to metal radiant panel centre distance
basis on finely tune, fine setting scope is generally no more than 20%.
When coaxial feed point 2 in the present embodiment is specifically implemented, SMA-KFD series coaxial connector can be used, sub-miniature A connector is fixed on above metallic reflection base plate 1, and by the signal core of SMA-KFD coaxial connector, welds together through medium substrate 3 and metal radiant panel 4.The present invention can use multiple coaxial connector, just illustrates concrete mounting means by SMA-KFD series here, is not limited to SMA-KFD series.
In addition, can also by the size selecting the medium substrate 3 of differing dielectric constant to adjust metal radiant panel 4, medium substrate 3 can select high dielectric constant material, to reduce the size of described microstrip antenna radiant panel.And the thickness of medium substrate 4 also affects radiation efficiency and the bandwidth of operation of antenna, the present embodiment dielectric substrate thickness scope is selected between 0.01 λ ~ 0.15 λ, to improve radiation efficiency and the bandwidth of operation of antenna.Also air can be used between microstrip antenna metal radiant panel and metallic reflection base plate to serve as dielectric-slab, do not use medium substrate.
Accompanying drawing 2 is the standing wave pattern of microstrip antenna element of the present invention.Ordinate represents standing-wave ratio, and abscissa is frequency, and function curve represents the standing-wave ratio of antenna on each Frequency point.Standing-wave ratio ideal value equals 1, and represent that the impedance of feeder line and antenna is mated completely, now high-frequency energy is all gone out by aerial radiation, does not have the reflection loss of energy; When standing-wave ratio is infinitely great, represent total reflection, energy does not radiate completely.
Accompanying drawing 3 is the directional diagram of microstrip antenna element of the present invention.Antenna pattern refers to from antenna a distance, the figure that the relative field strength (normalization modulus value) of radiation field changes with direction, radial coordinate (-35 ~ 15) represents antenna gain, represent with dB, angle coordinate represents aerial radiation or receives electromagnetic angle, function curve represents day alignment all directions radiation or receives the power of electromagnetic wave ability, represents with dB.
Anti-interference micro-strip array antenna of the present invention, is made up of according to certain layout arrangement mode multiple microstrip antenna element.In embodiments of the invention, the arrangement mode of microstrip antenna element is generally circular array form, and one of them array element is main array element, and all the other array element is auxiliary array element, main array element is positioned at center corresponding to metallic reflection base plate, and auxiliary array element is distributed in around main array element; Be preferably auxiliary array element centered by main array element, a concentric circles equidistantly arranges, and anti-jamming effectiveness is best; The signal that auxiliary array element receives, is weighted by adaptive filter algorithm, and weighting Hou Ge assists on road array element signals and the superposition of main array element signals, realizes the object eliminating interference.If under the condition that array antenna size allows, the superior distance between main array element center and auxiliary array element center is 1/2 λ; If pair array antenna size is restricted, the spacing between main array element center and auxiliary array element center can be reduced to 1/4 λ; (wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space).
The number below listing auxiliary array element is the Layout Embodiment figure of 4,5,6,7 or 8.
Fig. 4 a, Fig. 4 b are anti-interference micro-strip array antenna four array element schematic layout pattern of the present invention.Four array elements can have two kinds of layout type, the square layout mode of a kind of Fig. 4 of being a: the center of four array elements forms a square, foursquare center corresponds to the center of metallic reflection base plate, the length of side optimal distance of positive direction is 1/2nd wavelength, beeline is quarter-wave, and main array element can be at an arbitrary position.Another kind is the circular layout form of Fig. 4 b: main array element is positioned at center corresponding to metallic reflection base plate, the center of its excess-three auxiliary array element is on the concentric circles being the center of circle with main array element center, concentric circles radius is 1/2nd wavelength, and three auxiliary array elements equidistantly arrange.
Fig. 5 is anti-interference micro-strip array antenna five array element schematic layout pattern of the present invention.Array layout is circular array form.Main array element is at center, and the center of all the other four auxiliary array elements is on the concentric circles being the center of circle with main array element center, and concentric circles radius is 1/2nd wavelength, and four auxiliary array elements equidistantly arrange.
Fig. 6 is anti-interference micro-strip array antenna five array element schematic layout pattern of the present invention.Array layout is circular array form.Main array element is at center, and the center of all the other five auxiliary array elements is on the concentric circles being the center of circle with main array element center, and concentric circles radius is 1/2nd wavelength, and five auxiliary array elements equidistantly arrange.
Fig. 7 is anti-interference micro-strip array antenna five array element schematic layout pattern of the present invention.Array layout is circular array form.Main array element is at center, and the center of all the other six auxiliary array elements is on the concentric circles being the center of circle with main array element center, and concentric circles radius is 1/2nd wavelength, and six auxiliary array elements equidistantly arrange.
Fig. 8 is anti-interference micro-strip array antenna five array element schematic layout pattern of the present invention.Array layout is circular array form.Main array element is at center, and the center of all the other seven auxiliary array elements is on the concentric circles being the center of circle with main array element center, and concentric circles radius is 1/2nd wavelength, and seven auxiliary array elements equidistantly arrange.
It should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore, although this specification and embodiment have been described in detail to the invention, it will be appreciated by those skilled in the art that and still can modify to the invention or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, it is all encompassed in the middle of the protection range of the invention patent.
Claims (12)
1. an anti-interference micro-strip array antenna, it is characterized in that, comprise N number of microstrip antenna element, medium substrate and metallic reflection base plate, described microstrip antenna element is arranged in above medium substrate at a certain distance, and metallic reflection base plate is arranged at below medium substrate; The shape of described microstrip antenna element is oval, for giving off circularly polarised wave, described microstrip antenna element is arranged coaxial feed point, for feed-in electromagnetic wave signal.
2. anti-interference micro-strip array antenna according to claim 1, is characterized in that, described metallic reflection base plate is arranged at the lower surface of medium substrate, or the lower surface of distance medium substrate has certain distance; Described oval microstrip antenna element is arranged at the upper surface of medium substrate.
3. anti-interference micro-strip array antenna according to claim 1 and 2, is characterized in that, the length of the minor axis of described oval microstrip antenna element is about
the difference of major axis and minor axis is
between; Wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space, and ε is the dielectric constant of medium substrate.
4. anti-interference micro-strip array antenna according to claim 3, is characterized in that, described distributing point is arranged on the major axis of oval microstrip antenna element and the angular bisector of minor axis.
5. anti-interference micro-strip array antenna according to claim 4, is characterized in that, described distributing point exists to oval microstrip antenna element centre distance
basis on finely tune, fine setting scope is generally no more than 20%; 1 λ is an Antenna Operation center frequency point wavelength in free space, and ε is the dielectric constant of medium substrate.
6. anti-interference micro-strip array antenna according to claim 5, is characterized in that, the scope of described dielectric substrate thickness is selected between 0.01 λ ~ 0.15 λ, to improve radiation efficiency and the bandwidth of operation of antenna.
7. anti-interference micro-strip array antenna according to claim 1, is characterized in that, air also can be used between described microstrip antenna element and metallic reflection base plate to serve as medium substrate.
8. anti-interference micro-strip array antenna according to claim 1, it is characterized in that, the arrangement mode of described microstrip antenna element is circular array form, described microstrip antenna element comprises a main array element, all the other are auxiliary array element, described main array element is positioned at center corresponding to metallic reflection base plate, and described auxiliary array element is distributed in around main array element.
9. anti-interference micro-strip array antenna according to claim 8, is characterized in that, described auxiliary array element equidistantly distributes on the concentric circles of centered by main array element.
10. anti-interference micro-strip array antenna according to claim 8 or claim 9, it is characterized in that, the distance between described main array element center and auxiliary array element center is preferably 1/2 λ, and wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space.
11. anti-interference micro-strip array antennas according to claim 8 or claim 9, it is characterized in that, the minimum range between described main array element center and auxiliary array element center is 1/4 λ, and wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space.
12. anti-interference micro-strip array antennas according to claim 1, it is characterized in that, the arrangement mode of described microstrip antenna element is quadrate array form, described microstrip antenna element comprises 4 array elements, and the center of 4 array elements forms a square, and described foursquare center corresponds to the center of metallic reflection base plate, foursquare length of side optimal distance is 1/2 λ, beeline is 1/4 λ, and wherein, 1 λ is an Antenna Operation center frequency point wavelength in free space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724421.3A CN105305086A (en) | 2015-10-29 | 2015-10-29 | Anti-interference microstrip array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724421.3A CN105305086A (en) | 2015-10-29 | 2015-10-29 | Anti-interference microstrip array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105305086A true CN105305086A (en) | 2016-02-03 |
Family
ID=55202040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510724421.3A Pending CN105305086A (en) | 2015-10-29 | 2015-10-29 | Anti-interference microstrip array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105305086A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317107A (en) * | 2017-07-11 | 2017-11-03 | 深圳市鼎耀科技有限公司 | Anti-interference array is antenna integrated |
| CN110954924A (en) * | 2019-12-10 | 2020-04-03 | 上海航天控制技术研究所 | Integrated anti-interference design method for Beidou satellite terminal equipment |
-
2015
- 2015-10-29 CN CN201510724421.3A patent/CN105305086A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 刘永鑫等: ""右旋圆极化微带天线的设计与实现"", 《第三届中国卫星导航学术年会》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317107A (en) * | 2017-07-11 | 2017-11-03 | 深圳市鼎耀科技有限公司 | Anti-interference array is antenna integrated |
| CN107317107B (en) * | 2017-07-11 | 2023-09-08 | 深圳市鼎耀科技有限公司 | Anti-interference array integrated antenna |
| CN110954924A (en) * | 2019-12-10 | 2020-04-03 | 上海航天控制技术研究所 | Integrated anti-interference design method for Beidou satellite terminal equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101688628B1 (en) | Controlled reception pattern antenna | |
| CN110148833B (en) | High-gain double-frequency circularly polarized antenna based on super surface | |
| CN107895846B (en) | Circular polarization patch antenna with broadband | |
| CN107181056A (en) | A kind of microwave attenuation type high stable phase, high-precision GNSS measurement type antenna and equipment | |
| CN112117532B (en) | Compact low-coupling triple-polarization backtracking array and triple-polarization MIMO antenna unit based on microstrip antenna | |
| US20130201066A1 (en) | Wireless communications device having loop antenna with four spaced apart coupling points and reflector and associated methods | |
| US20130201065A1 (en) | Wireless communications device having loop antenna with four spaced apart coupling points and associated methods | |
| US9614292B2 (en) | Circularly polarized antenna | |
| Ahmed | A compact triangular ring patch antenna for radio location and fixed satellite applications | |
| Song et al. | Novel mmwave wireless power transfer systems using broadband circularly polarized rectennas and leaky wave transmitters | |
| CN107611606B (en) | Antenna structure and terminal | |
| CN212517535U (en) | Microstrip antenna based on double-coupling feed structure | |
| CN105305086A (en) | Anti-interference microstrip array antenna | |
| CN105428816A (en) | Left-handed and right-handed double circular polarized wide beam antenna | |
| CN105305051A (en) | Elliptical circular polarization microstrip antenna | |
| KR101727489B1 (en) | An orthogonally polarized negative resonance crlh patch antenna | |
| CN105305050A (en) | Circular cut-arc microstrip antenna | |
| CN105742792B (en) | A kind of circular polarized antenna of horizontal omnidirectional radiation | |
| Yang et al. | Millimeter wave dual polarization design using frequency selective surface (FSS) for 5G base-station applications | |
| Wang et al. | A novel circularly polarized Yagi antenna | |
| Kashif | A Compact Circular Polarized Antenna for Fixed Communication Applications | |
| Lu et al. | Low-Profile Ku-/Ka-Band Shared-Aperture Phased Array | |
| US10673148B1 (en) | Circularly symmetric tightly coupled dipole array with non-coincident phase center | |
| CN113013604A (en) | Antenna and antenna array | |
| CN112909580A (en) | Low-profile circularly polarized equal-flux antenna module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |