CN211126059U - Dual-band antenna and aircraft - Google Patents
Dual-band antenna and aircraft Download PDFInfo
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- CN211126059U CN211126059U CN201921778814.2U CN201921778814U CN211126059U CN 211126059 U CN211126059 U CN 211126059U CN 201921778814 U CN201921778814 U CN 201921778814U CN 211126059 U CN211126059 U CN 211126059U
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Abstract
The utility model relates to a dual-frenquency antenna and aircraft, dual-frenquency antenna includes: the first radiating part and the second radiating part are arranged on the surface of the substrate; the first coaxial line comprises a first inner lead and a first outer lead insulated and isolated from the first inner lead; the first radiation part comprises a first radiation patch and a second radiation patch which are arranged at intervals, the first radiation patch is electrically connected with the first inner lead, and the second radiation patch is electrically connected with the first outer lead; the second coaxial line comprises a second inner conducting wire and a second outer conducting wire insulated and isolated from the second inner conducting wire; the second radiation portion includes third radiation paster and the fourth radiation paster that the interval set up, wire electric connection in third radiation paster and the second, the wire electric connection outside fourth radiation paster and the second. The aircraft includes the dual-band antenna described above. The dual-frequency antenna and the aircraft have better omni-directionality.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a dual-frenquency antenna and aircraft.
Background
With the rapid development of wireless communication and the demand of various data services, the antenna design mainly develops towards miniaturization, multiple frequency bands and wide frequency bands, and the miniaturization requires the antenna to reduce the size of the antenna so as to adapt to the development trend that the integration level of communication equipment is continuously improved and the size of the communication equipment is smaller and smaller. The existing dual-frequency antenna has a directional direction, and cannot meet the requirement of 360-degree omnidirectional uniform coverage of the antenna on a horizontal plane.
Therefore, how to improve an omnidirectional antenna is a need in the prior art.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a dual-band antenna and an aircraft, which aims to make the antenna have omni-directionality.
In order to achieve the above object, the utility model provides a dual-band antenna, dual-band antenna includes:
the antenna comprises a substrate, a first radiation part, a second radiation part, a first coaxial line and a second coaxial line, wherein the first radiation part and the second radiation part are arranged on the surface of the substrate;
the first coaxial line comprises a first inner lead and a first outer lead insulated and isolated from the first inner lead;
the first radiating part comprises a first radiating patch and a second radiating patch which are arranged at intervals, the first radiating patch is electrically connected with the first inner lead, and the second radiating patch is electrically connected with the first outer lead;
the second coaxial line comprises a second inner conductor and a second outer conductor insulated and isolated from the second inner conductor;
the second radiation portion includes third radiation paster and fourth radiation paster that the interval set up, the third radiation paster with second inner lead electric connection, the fourth radiation paster with second outer lead electric connection.
Preferably, the first radiation patch is located between the fourth radiation patch and the second radiation patch, and the first radiation patch and the second radiation patch are symmetrical to each other.
Preferably, the first radiation patch includes a first radiation piece, a second radiation piece and a first connection piece, and the first radiation piece is electrically connected with the second radiation piece through the first connection piece.
Preferably, the first radiation patch is located between the fourth radiation patch and the second radiation patch, the first radiation patch and the second radiation patch are both located on one side of the first connecting plate close to the second radiation portion, the first radiation patch is U-shaped, and the first connecting plate is electrically connected with the first inner wire.
Preferably, the first radiation part generates a resonant wave with a wavelength of a first radiation frequency band when radiating, the length of the first radiation piece is 1/8-3/4 of the wavelength of the resonant wave with the wavelength of the first radiation frequency band, and the length of the second radiation piece is 1/8-3/4 of the wavelength of the resonant wave with the wavelength of the first radiation frequency band.
Preferably, the first radiation frequency band is 4.55 GHz-6.03 GHz.
Preferably, a gap is formed in the third radiation patch, the second radiation portion further includes a fifth radiation patch, the fifth radiation patch is disposed in the gap, and the fifth radiation patch and the third radiation patch are disposed at an interval.
Preferably, the third radiation patch surrounds the fifth radiation patch.
Preferably, the third radiation patch includes first broken line, second broken line, third broken line, fourth broken line and the fifth broken line that connects gradually, first broken line with the second broken line is perpendicular, the second broken line with the third broken line is perpendicular, the third broken line with the fourth broken line is perpendicular, the fourth broken line with the fifth broken line is perpendicular, first broken line with the third broken line is relative, the second broken line with the fourth broken line is relative, the fifth broken line is located first broken line between the third broken line, the length of fifth broken line is less than respectively first broken line the length of third broken line, first broken line the second broken line the third broken line the fourth broken line with the fifth broken line encloses into the gap.
Preferably, the fourth radiation patch is located between the first radiation portion and the third radiation patch, and an opening is included between ends of the first folding line and the fourth folding line close to the first folding line, and the opening faces the fourth radiation patch.
Preferably, the second radiation part generates resonant waves with the wavelength of the second radiation frequency band when radiating, and the length of the third radiation patch is 1/8-3/4 of the wavelength of the resonant waves with the wavelength of the second radiation frequency band.
Preferably, the second radiation frequency band is 880 MHz-980 MHz.
The utility model also provides an aircraft, the aircraft include the fuselage, with the horn that the fuselage links to each other, locate the power device of horn, locate the undercarriage and the foretell dual-frenquency antenna of fuselage, the dual-frenquency antenna sets up in the undercarriage.
Compared with the prior art, the utility model has the advantages that the first radiation part and the second radiation part are respectively fed and designed, the mutual influence between the two frequency bands is reduced, the dual-frequency antenna has better omni-directionality, the dual-frequency antenna meets the requirement of uniformly covering the antenna in 360 degrees omni-directional direction on the horizontal plane, the first radiation part comprises the first radiation patch and the second radiation patch which are arranged at intervals, the first radiation patch is electrically connected with the first inner lead, the second radiation patch is electrically connected with the first outer lead, the first radiation patch and the second radiation patch are arranged at intervals, the omni-directionality of the antenna is also improved, the second radiation part comprises the third radiation patch and the fourth radiation patch which are arranged at intervals, the third radiation patch is electrically connected with the second inner lead, the fourth radiation patch is electrically connected with the second outer lead, and the third radiation patch and the fourth radiation patch are arranged at intervals, the omnidirectional property of the antenna is also improved, and the dual-frequency antenna has simple structure, small volume, low cost and convenient use.
The utility model discloses a mutual symmetry of first radiation paster and second radiation paster does benefit to and walks the line feed in the middle of first radiation paster and the second radiation paster, effectively guarantees the omnidirectional radiation in the frequency channel, makes the biggest inclination at the horizontal direction.
The utility model discloses a second radiation portion still includes the fifth radiation paster, the fifth radiation paster sets up in the gap, the fifth radiation paster with the third radiation paster interval sets up, and the fifth radiation paster has increased the impedance bandwidth of dual-frenquency antenna for the antenna performance is more stable.
Compared with the prior art, the aircraft of the utility model comprises a dual-frequency antenna, a first radiation part and a second radiation part of the dual-frequency antenna are respectively fed, the mutual influence between two frequency bands is reduced, the dual-frequency antenna has better omnidirectionality, the dual-frequency antenna meets the requirement of uniformly covering the antenna in 360 degrees all directions on the horizontal plane, the first radiation part comprises a first radiation patch and a second radiation patch which are arranged at intervals, the first radiation patch is electrically connected with the first inner lead, the second radiation patch is electrically connected with the first outer lead, the first radiation patch and the second radiation patch are arranged at intervals, the omnidirectionality of the antenna is also improved, the second radiation part comprises a third radiation patch and a fourth radiation patch which are arranged at intervals, the third radiation patch is electrically connected with the second inner lead, the fourth radiation patch is electrically connected with the second outer lead, the third radiation patch and the fourth radiation patch are arranged at intervals, the omni-directionality of the antenna is also improved, the dual-frequency antenna is simple in structure, small in size and low in cost, and the dual-frequency antenna is convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of the dual-band antenna of the present invention.
Fig. 2 is a schematic structural diagram of the first radiation portion of the present invention.
Fig. 3 is a schematic structural diagram of a second radiation portion of the present invention.
Fig. 4 is a schematic structural diagram of a third radiation patch of the present invention.
Fig. 5A is an S-curve parameter diagram of the first radiation portion of the dual-band antenna.
Fig. 5B is an S-curve parameter diagram of the second radiation portion of the dual-band antenna.
Fig. 6A is a directional diagram of the first radiation portion of the dual-band antenna at 5.5 GHz.
Fig. 6B shows a 900MHz radiation pattern of the second radiation portion of the dual-band antenna.
Fig. 7 is a schematic top view of an aircraft according to a second embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a dual-band antenna 10, wherein the dual-band antenna 10 can operate in two frequency bands of 880 MHz-980 MHz and 4.55 GHz-6.03 GHz, and the antenna of the present invention has a better omni-directional property. The dual-band antenna 10 includes a substrate 11, a first radiation portion 12, a second radiation portion 13, a first coaxial line (not shown in the figure), and a second coaxial line (not shown in the figure), wherein the first radiation portion 12 and the second radiation portion 13 are disposed on the surface of the substrate 11, the first radiation portion 12 and the second radiation portion 13 are disposed at an interval, the first coaxial line is electrically connected to the first radiation portion 12, the first coaxial line feeds power to the first radiation portion 12, the second coaxial line is electrically connected to the second radiation portion 13, and the second coaxial line feeds power to the second radiation portion 13. The first radiation part 12 and the second radiation part 13 are respectively designed for feeding, so that the mutual influence between the two frequency bands is reduced, and the dual-band antenna 10 has better omni-directionality.
The substrate 11 is used to carry the first radiation portion 12 and the second radiation portion 13, and the substrate 11 may be a PCB (printed circuit Board) Board. The substrate 11 is made of an insulating material, and the specific material of the substrate 11 is not limited, for example, the material of the substrate 11 is polyethylene terephthalate or a silicone polymer material. The first radiation part 12 and the second radiation part 13 may be disposed on the same surface of the substrate 11, and the first radiation part 12 and the second radiation part 13 may be disposed on opposite surfaces of the substrate 11, and in the present embodiment, the description is made with the first radiation part 12 and the second radiation part 13 being disposed on the same surface of the substrate 11. The substrate 11 has a rectangular parallelepiped shape, and the surface of the substrate 11 on which the first radiation portion 12 and the second radiation portion 13 are mounted has a rectangular shape.
The first coaxial line may be a coaxial line commonly used in existing antennas. The first coaxial line is electrically connected to a feeding arrangement or feeding network for feeding the first radiating section 12. The first coaxial line comprises a first inner conducting wire and a first outer conducting wire insulated and isolated from the first inner conducting wire.
Referring to fig. 2, the first radiating portion 12 includes a first radiating patch 121 and a second radiating patch 122 disposed at an interval, the first radiating patch 121 is electrically connected to the first inner wire, and the second radiating patch 122 is electrically connected to the first outer wire. The first radiation patch 121, the second radiation patch 122 and the second radiation portion 13 are arranged along the length direction of the substrate 11, and the first radiation patch 121 is located between the second radiation portion 13 and the second radiation patch 122. The first radiation section 12 generates a resonant wave of a wavelength of a first radiation band when radiated. The first radiation frequency band is 4.55 GHz-6.03 GHz.
The first radiation patch 121 includes a first radiation sheet 1211, a second radiation sheet 1212, and a first connection sheet 1213, and the first radiation sheet 1211 is electrically connected to the second radiation sheet 1212 through the first connection sheet 1213. In this embodiment, the first radiation element 1211 and the second radiation element 1212 are both located on a side of the first connection plate 1213 close to the second radiation portion 13. The first radiating patch 121 is U-shaped, and the first connecting tab 1213 is electrically connected to the first inner wire.
The first radiation piece 1211 can conduct electricity. The shape of the first radiation sheet 1211 is not limited, and the length of the first radiation sheet 1211 is 1/8 to 3/4 of the wavelength of the resonant wave of the wavelength of the first radiation frequency band. In this embodiment, the first radiation sheet 1211 has a rectangular shape. The shape of the first radiation sheet 1211 may also be a triangle, a trapezoid, etc.
The second radiation chip 1212 can be conductive. The shape of the second radiation piece 1212 is not limited, and the length of the second radiation piece 1212 is 1/8-3/4 of the wavelength of the resonant wave of the wavelength of the first radiation frequency band. In this embodiment, the second radiation blade 1212 has a rectangular shape. The second radiation blade 1212 may also have a triangular shape, a trapezoidal shape, etc. Preferably, the length of the second radiation piece 1212 is equal to the length of the first radiation piece 1211.
The first connection tab 1213 is electrically conductive. A feeding point may be provided on the first connection tab 1213 to electrically connect the first inner conductive line and the feeding point on the first connection tab 1213. It is understood that the first inner conductive wire may not be electrically connected to the first connecting tab 1213, so that the first inner conductive wire is electrically connected to the first radiation element 1211 or the second radiation element 1212, which does not interfere with the normal use of the first radiation patch 121.
The second radiation patch 122 includes a third radiation patch 1221, a fourth radiation patch 1222, and a second connection patch 1223, and the third radiation patch 1221 is electrically connected through the second connection patch 1223 and the fourth radiation patch 1222. In this embodiment, the third radiation piece 1221 and the fourth radiation piece 1222 are both located on a side of the second connection piece 1223 away from the second radiation portion 13. The second radiation patch 122 is U-shaped, and the second connection pad 1223 is electrically connected to the first external wire. Preferably, the second radiation patch 122 and the first radiation patch 121 are symmetrical to each other, which is beneficial to the middle routing feed of the first radiation patch 121 and the second radiation patch 122, effectively ensuring the omnidirectional radiation in the frequency band, and enabling the maximum inclination angle to be in the horizontal direction.
The third radiation piece 1221 can conduct electricity. The shape of the third radiation piece 1221 is not limited, and the length of the third radiation piece 1221 is 1/8 to 3/4 of the wavelength of the resonant wave of the wavelength of the first radiation frequency band. In this embodiment, the third radiation piece 1221 has a rectangular shape. The third radiation piece 1221 may also have a triangular or trapezoidal shape, etc.
The fourth radiation patch 1222 may be conductive. The shape of the fourth radiation plate 1222 is not limited, and the length of the fourth radiation plate 1222 may be 1/8-3/4 of the wavelength of the resonant wave of the wavelength of the first radiation band. In this embodiment, the fourth radiation plate 1222 has a rectangular shape. The fourth radiation patch 1222 may also be triangular, trapezoidal, etc. Preferably, the length of the fourth radiation piece 1222 is equal to the length of the third radiation piece 1221.
The second connection pad 1223 is electrically conductive. A feeding point may be disposed on the second connection pad 1223 so that the first external wire is electrically connected to the feeding point on the second connection pad 1223. It is understood that the first external wire may not be electrically connected to the second connection pad 1223, so that the first external wire is electrically connected to the third radiation patch 1221 or the fourth radiation patch 1222 without interfering with the normal use of the second radiation patch 122.
The second coaxial line may be a coaxial line commonly used in the existing antenna. The second coaxial line is electrically connected to a feeding arrangement or feeding network for feeding the second radiating part 13. The second coaxial line comprises a second inner conductor and a second outer conductor insulated and isolated from the second inner conductor.
Referring to fig. 3, the second radiation portion 13 includes a third radiation patch 131 and a fourth radiation patch 132 that are disposed at an interval, the second radiation portion 13 further includes a fifth radiation patch 133, the third radiation patch 131 is electrically connected to the second inner wire, and the fourth radiation patch 132 is electrically connected to the second outer wire. The second radiation patch 122, the first radiation patch 121, the fourth radiation patch 132, and the third radiation patch 131 are sequentially arranged at intervals along the length direction of the substrate 11, the fourth radiation patch 132 is located between the first radiation patch 121 and the third radiation patch 131 of the first radiation portion 12, the fifth radiation patch 133 is located in the third radiation patch 131, and the fifth radiation patch 133 and the third radiation patch 131 are arranged at intervals. The second radiation section 13 generates a resonance wave having a wavelength of the second radiation band when radiated. The second radiation frequency band is 880 MHz-980 MHz. The fifth radiation patch 133 increases the impedance bandwidth of the dual band antenna 10, so that the antenna performance is more stable.
The shape of the fourth radiation patch 132 is not limited, and in the present embodiment, the shape of the fourth radiation patch 132 is a rectangle, and the longitudinal direction of the fourth radiation patch 132 is perpendicular to the longitudinal direction of the substrate 11. Wherein the first radiation patch 121 is located between the fourth radiation patch 132 and the second radiation patch 122.
Referring to fig. 4, a slit 1311 is formed on the third radiation patch 131, the fifth radiation patch 133 is disposed in the slit 1311, and the third radiation patch 131 surrounds the fifth radiation patch 133. Specifically, the third radiation patch 131 includes a first fold line 1312, a second fold line 1313, a third fold line 1314, a fourth fold line 1315, and a fifth fold line 1316, which are sequentially connected, where the first fold line 1312 is perpendicular to the second fold line 1313, the second fold line 1313 is perpendicular to the third fold line 1314, the third fold line 1314 is perpendicular to the fourth fold line 1315, the fourth fold line 1315 is perpendicular to the fifth fold line 1316, the first fold line 1312 and the third fold line 1314 are disposed opposite to each other, and the second fold line 1313 and the fourth fold line 1315 are disposed opposite to each other. The outer contour of the third radiation patch 131 is substantially rectangular or square. The fifth folding line 1316 is located between the first folding line 1312 and the third folding line 1314, the length of the fifth folding line 1316 is smaller than the length of the first folding line 1312 and the length of the third folding line 1314, and the first folding line 1312, the second folding line 1313, the third folding line 1314, the fourth folding line 1315 and the fifth folding line 1316 enclose the gap 1311. Between the ends of the first and fourth fold lines 1312, 1315 near the first fold line 1312, an opening 1317 is included, the opening 1317 facing the fourth radiation patch 132. The length of the third radiation patch 131 is 1/8-3/4 of the wavelength of the resonant wave of the wavelength of the second radiation band. The length of the third radiation patch 131 is a length from one end of the third radiation patch 131 to the other end of the third radiation patch 131. As in this embodiment, the length of the third radiation patch 131 is the sum of the lengths of the first fold line 1312, the second fold line 1313, the third fold line 1314, the fourth fold line 1315, and the fifth fold line 1316.
The shape of the fifth radiation patch 133 is not limited, and in this embodiment, the fifth radiation patch 133 has a rectangular shape, and a length square of the fifth radiation patch 133 is parallel to a length square of the substrate 11. The fifth radiation patch 133 may also have a trapezoidal, elliptical, or the like shape.
Referring to fig. 5A and 5B, it can be seen that the first radiation portion 12 of the dual-band antenna 10 can operate at 4.55 GHz-6.03 GHz with a bandwidth of 1.48GHz (26.0%), the second radiation portion 13 of the dual-band antenna 10 can operate at 880 MHz-980 MHz with a bandwidth of 100MHz (11.0%), and the coverage of the common 900MHz and 5.5GHz bands is satisfied.
As shown in fig. 6A, it can be seen that the dual-band antenna 10 can achieve omnidirectional coverage at 5.5GHz, and the maximum value of the antenna radiation direction is in the horizontal direction.
As shown in fig. 6B, it can be seen that the dual-band antenna 10 can achieve omnidirectional coverage at 900MHz, and the maximum value of the radiation direction is in the horizontal direction.
Referring to fig. 7, a second embodiment of the present invention provides an aircraft 20, where the aircraft 20 includes a fuselage 21, a horn 22 connected to the fuselage 21, a power device 23 disposed on the horn 22, an undercarriage 24 disposed on the fuselage 21, and a dual-band antenna 10. Wherein the power device 23 is used to provide flight power for the aircraft 20 and the dual-band antenna 10 is disposed in the landing gear 24.
In this embodiment, the bottom view of the aircraft is taken as an illustrative example to show the installation position of the dual-band antenna 10, the installation position of the dual-band antenna 10 in this embodiment is not limited to the installation position shown in fig. 7, and other installation positions of the dual-band antenna 10 that can better satisfy signal transceiving may also be used.
The dual-band antenna 10, which is disposed in the landing gear 24 of the aircraft 20, widens the bandwidth of the dual-band antenna 10 in the elevation plane, and the signal remains stable when the antenna is tilted. Therefore, the influence of the flying posture of the aircraft on the communication is reduced and the communication of the aircraft 20 in the flying process is guaranteed in the flying process of the aircraft.
Compared with the prior art, the utility model has the advantages that the first radiation part and the second radiation part are respectively fed and designed, the mutual influence between the two frequency bands is reduced, the dual-frequency antenna has better omni-directionality, the dual-frequency antenna meets the requirement of uniformly covering the antenna in 360 degrees omni-directional direction on the horizontal plane, the first radiation part comprises the first radiation patch and the second radiation patch which are arranged at intervals, the first radiation patch is electrically connected with the first inner lead, the second radiation patch is electrically connected with the first outer lead, the first radiation patch and the second radiation patch are arranged at intervals, the omni-directionality of the antenna is also improved, the second radiation part comprises the third radiation patch and the fourth radiation patch which are arranged at intervals, the third radiation patch is electrically connected with the second inner lead, the fourth radiation patch is electrically connected with the second outer lead, and the third radiation patch and the fourth radiation patch are arranged at intervals, the omnidirectional property of the antenna is also improved, and the dual-frequency antenna has simple structure, small volume, low cost and convenient use.
The utility model discloses a mutual symmetry of first radiation paster and second radiation paster does benefit to and walks the line feed in the middle of first radiation paster and the second radiation paster, effectively guarantees the omnidirectional radiation in the frequency channel, makes the biggest inclination at the horizontal direction.
The utility model discloses a second radiation portion still includes the fifth radiation paster, the fifth radiation paster sets up in the gap, the fifth radiation paster with the third radiation paster interval sets up, and the fifth radiation paster has increased the impedance bandwidth of dual-frenquency antenna for the antenna performance is more stable.
Compared with the prior art, the aircraft of the utility model comprises a dual-frequency antenna, a first radiation part and a second radiation part of the dual-frequency antenna are respectively fed, the mutual influence between two frequency bands is reduced, the dual-frequency antenna has better omnidirectionality, the dual-frequency antenna meets the requirement of uniformly covering the antenna in 360 degrees all directions on the horizontal plane, the first radiation part comprises a first radiation patch and a second radiation patch which are arranged at intervals, the first radiation patch is electrically connected with the first inner lead, the second radiation patch is electrically connected with the first outer lead, the first radiation patch and the second radiation patch are arranged at intervals, the omnidirectionality of the antenna is also improved, the second radiation part comprises a third radiation patch and a fourth radiation patch which are arranged at intervals, the third radiation patch is electrically connected with the second inner lead, the fourth radiation patch is electrically connected with the second outer lead, the third radiation patch and the fourth radiation patch are arranged at intervals, the omni-directionality of the antenna is also improved, the dual-frequency antenna is simple in structure, small in size and low in cost, and the dual-frequency antenna is convenient to use.
It should be noted that the numbers of the embodiments of the present invention are only for description, and do not represent the merits of the embodiments. And the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, apparatus, article, or method that includes the element.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (13)
1. A dual-band antenna, comprising: a substrate, a first radiation part, a second radiation part, a first coaxial line and a second coaxial line,
the first radiation part and the second radiation part are arranged on the surface of the substrate;
the first coaxial line comprises a first inner lead and a first outer lead insulated and isolated from the first inner lead;
the first radiating part comprises a first radiating patch and a second radiating patch which are arranged at intervals, the first radiating patch is electrically connected with the first inner lead, and the second radiating patch is electrically connected with the first outer lead;
the second coaxial line comprises a second inner conductor and a second outer conductor insulated and isolated from the second inner conductor;
the second radiation portion includes third radiation paster and fourth radiation paster that the interval set up, the third radiation paster with second inner lead electric connection, the fourth radiation paster with second outer lead electric connection.
2. The dual-band antenna of claim 1, wherein: the first radiation patch is positioned between the fourth radiation patch and the second radiation patch, and the first radiation patch and the second radiation patch are symmetrical to each other.
3. The dual-band antenna of claim 1, wherein: the first radiation patch comprises a first radiation piece, a second radiation piece and a first connecting piece, and the first radiation piece is electrically connected with the second radiation piece through the first connecting piece.
4. A dual-band antenna as claimed in claim 3, wherein: the first radiation patch is located between the fourth radiation patch and the second radiation patch, the first radiation patch and the second radiation patch are both located on one side, close to the second radiation part, of the first connecting sheet, the first radiation patch is U-shaped, and the first connecting sheet is electrically connected with the first inner lead.
5. A dual-band antenna as claimed in claim 3, wherein: the first radiation part generates resonant waves with the wavelength of the first radiation frequency band when radiating, the length of the first radiation piece is 1/8-3/4 of the wavelength of the resonant waves with the wavelength of the first radiation frequency band, and the length of the second radiation piece is 1/8-3/4 of the wavelength of the resonant waves with the wavelength of the first radiation frequency band.
6. The dual-band antenna of claim 5, wherein: the first radiation frequency band is 4.55 GHz-6.03 GHz.
7. The dual-band antenna of claim 1, wherein: the third radiation patch is provided with a gap, the second radiation part further comprises a fifth radiation patch, the fifth radiation patch is arranged in the gap, and the fifth radiation patch and the third radiation patch are arranged at intervals.
8. The dual-band antenna of claim 7, wherein: the third radiating patch surrounds the fifth radiating patch.
9. The dual-band antenna of claim 7, wherein: the third radiation patch comprises a first fold line, a second fold line, a third fold line, a fourth fold line and a fifth fold line which are connected in sequence, wherein the first fold line is vertical to the second fold line, the second fold line is vertical to the third fold line, the third fold line is vertical to the fourth fold line, the fourth fold line is vertical to the fifth fold line, the first fold line is opposite to the third fold line, the second fold line is opposite to the fourth fold line, the fifth fold line is located between the first fold line and the third fold line, and the length of the fifth fold line is smaller than that of the first fold line and that of the third fold line respectively, and the first fold line, the second fold line, the third fold line, the fourth fold line and the fifth fold line are enclosed into a gap.
10. The dual-band antenna of claim 9, wherein: the fourth radiation patch is positioned between the first radiation part and the third radiation patch, an opening is arranged between one ends of the first folding line and the fourth folding line close to the first folding line, and the opening faces the fourth radiation patch.
11. The dual-band antenna of claim 7, wherein: the second radiation part generates resonant waves with the wavelength of the second radiation frequency band when radiating, and the length of the third radiation patch is 1/8-3/4 of the wavelength of the resonant waves with the wavelength of the second radiation frequency band.
12. The dual-band antenna of claim 7, wherein: the second radiation frequency range is 880 MHz-980 MHz.
13. An aircraft comprising a fuselage, a horn connected to the fuselage, a power plant provided in the horn, landing gear provided in the fuselage, and a dual-band antenna according to any one of claims 1 to 12, the dual-band antenna being provided in the landing gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921778814.2U CN211126059U (en) | 2019-10-22 | 2019-10-22 | Dual-band antenna and aircraft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921778814.2U CN211126059U (en) | 2019-10-22 | 2019-10-22 | Dual-band antenna and aircraft |
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| CN211126059U true CN211126059U (en) | 2020-07-28 |
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| CN201921778814.2U Active CN211126059U (en) | 2019-10-22 | 2019-10-22 | Dual-band antenna and aircraft |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110808460A (en) * | 2019-10-22 | 2020-02-18 | 深圳市道通智能航空技术有限公司 | Dual-band antenna and aircraft |
| WO2021078260A1 (en) * | 2019-10-25 | 2021-04-29 | 深圳市道通智能航空技术有限公司 | Dual-band antenna and aerial vehicle |
-
2019
- 2019-10-22 CN CN201921778814.2U patent/CN211126059U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110808460A (en) * | 2019-10-22 | 2020-02-18 | 深圳市道通智能航空技术有限公司 | Dual-band antenna and aircraft |
| WO2021078200A1 (en) * | 2019-10-22 | 2021-04-29 | 深圳市道通智能航空技术有限公司 | Dual-frequency antenna and aerial vehicle |
| WO2021078260A1 (en) * | 2019-10-25 | 2021-04-29 | 深圳市道通智能航空技术有限公司 | Dual-band antenna and aerial vehicle |
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Address after: 518055 Shenzhen, Guangdong, Nanshan District Xili street, No. 1001, Zhiyuan Road, B1 9. Patentee after: Shenzhen daotong intelligent Aviation Technology Co.,Ltd. Address before: 518055 Shenzhen, Guangdong, Nanshan District Xili street, No. 1001, Zhiyuan Road, B1 9. Patentee before: AUTEL ROBOTICS Co.,Ltd. |
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