CN210430082U - Airborne dual-frequency antenna of unmanned aerial vehicle - Google Patents
Airborne dual-frequency antenna of unmanned aerial vehicle Download PDFInfo
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- CN210430082U CN210430082U CN201921004718.2U CN201921004718U CN210430082U CN 210430082 U CN210430082 U CN 210430082U CN 201921004718 U CN201921004718 U CN 201921004718U CN 210430082 U CN210430082 U CN 210430082U
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Abstract
The utility model discloses an unmanned aerial vehicle machine carries dual-band antenna, this antenna include two round platforms, install X frequency channel microstrip transmitting antenna Ku frequency channel spiral transmitting antenna and X frequency channel microstrip receiving antenna Ku frequency channel spiral receiving antenna respectively through the antenna fixing plate, through the distance and the position of optimizing the antenna and utilize the round platform slope, widen the lobe width. The antenna increases communication channels and improves communication effect; the separated form of transceiving effectively reduces the weight and the size of the antenna.
Description
Technical Field
The utility model relates to a wireless communication field, specifically speaking relate to an unmanned aerial vehicle machine carries dual-band antenna.
Background
In a radio communication system, an antenna is an indispensable component, and the performance and efficiency thereof directly affect the performance of the radio communication system. In unmanned aerial vehicle communication system, because the restriction of fuselage size and weight, the system has very high requirement to airborne antenna size is little, light in weight. Meanwhile, the communication environment of the unmanned aerial vehicle is complex, the posture of the unmanned aerial vehicle is unstable, the space interference is traceless, and the research on redundant multi-channel communication and high-performance antennas is very necessary.
Traditional unmanned aerial vehicle carries multi-purpose metal antenna of antenna, forms such as a plurality of antennas are installed in the built-in multichannel problem of solving, and this has more and more can not satisfy unmanned aerial vehicle system's needs.
SUMMERY OF THE UTILITY MODEL
The purpose of the invention is as follows: the utility model aims at providing a receive and send signal separation design, optimize communication effect's unmanned aerial vehicle dual-frenquency antenna.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses an unmanned aerial vehicle machine carries dual-band antenna, including first round platform and second round platform, be equipped with an antenna fixed plate on first round platform and the second round platform respectively, the antenna fixed plate of first round platform is improved level and is equipped with X microstrip transmitting antenna, X microstrip transmitting antenna center is equipped with first perforation, be equipped with the Ku spiral transmitting antenna of cladding cable in the first perforation, Ku spiral transmitting antenna passes the antenna fixed plate and connects Ku frequency channel transmission port in the bottom surface, the antenna fixed plate bottom surface of first round platform still is equipped with the X frequency channel transmission port of being connected with X microstrip transmitting antenna; an X microstrip receiving antenna is horizontally arranged on an antenna fixing plate of the second round table, a second through hole is formed in the center of the X microstrip receiving antenna, a Ku spiral receiving antenna for wrapping cables is arranged in the second through hole, the Ku spiral receiving antenna penetrates through the antenna fixing plate and is connected with a Ku frequency band receiving port on the bottom surface, and an X frequency band receiving port connected with the X microstrip receiving antenna is further arranged on the bottom surface of the antenna fixing plate of the second round table.
The utility model discloses a Ku helical antenna is helical antenna (helical antenna), is an antenna that has the helical shape, and it comprises the metal helix that electric conductive property is good. The radiation direction of a helical antenna is related to the circumference of the helix. When the circumference of the helix is much smaller than one wavelength, the direction of the strongest radiation is perpendicular to the helix axis; the strongest radiation occurs in the direction of the helix axis when the helix circumference is of the order of one wavelength.
The Ku spiral transmitting antenna is a left-handed circularly polarized right-handed single-arm spiral antenna. The Ku spiral receiving antenna is a left-handed single-arm spiral antenna with left-handed circular polarization. The circularly polarized antenna can receive electromagnetic waves with any polarization, and the electromagnetic waves transmitted by the circularly polarized antenna can be received by the antenna with any polarization, so that the characteristic provides guarantee for high-efficiency, accurate and rapid data transmission in the airborne large dynamic flight scene of the unmanned aerial vehicle.
Preferably, a small microstrip plate for matching impedance is arranged at the bottom of the Ku spiral transmitting antenna and the Ku spiral receiving antenna. The small microstrip board is a Rogers TMM3 high-frequency board, the surface of which is subjected to anti-oxidation treatment and is welded on the antenna fixing plate together with the bottom of the helical antenna.
Preferably, the Ku spiral transmitting antenna and the Ku spiral receiving antenna are antennas wound by three turns with the diameter of 0.5 mm.
The utility model discloses a widen the lobe width, the antenna is all placed on first round platform and second round platform. First round platform and second round platform have a planar circular cone structure for the top that metal copper made. In order to prevent the receiving and transmitting antennas from being close to each other and interfering with each other, the antennas are separated by space to form an isolation degree of about 25dB, the horizontal distance between the first perforation and the second perforation is 40mm, the cone degree of the circular truncated cone is 70 degrees, and the width of the lobe can be further widened.
The utility model discloses a Ku spiral transmission/reception antenna all adopts single feed point feed with X microstrip transmission/reception antenna, on the probe in by the round platform was connected to the signal line of antenna feeder with the signal extraction, the round platform was connected to the ground of antenna feeder as the ground of antenna.
Has the advantages that: the utility model discloses an antenna is Ku, X double-frequency full duplex work, has increased communication channel, has improved communication effect, and this antenna adopts the receiving and dispatching detached form, combines with single-armed helical oscillator and microstrip, has effectively alleviateed antenna weight and size, and transmitting antenna is heavy 200g, and the size is less than or equal to phi 40X 30, and receiving antenna is heavy 150g, and the size is less than or equal to phi 40X 30. The standing-wave ratio of the two frequency bands of the antenna is less than or equal to 2.0, and the coverage range of the wave beams is psi 0-360 theta +/-60.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a plan view of embodiment 1 of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in figure 1, the airborne dual-frequency antenna of the unmanned aerial vehicle comprises an installation base 1, wherein an installation hole 2 is formed in the installation base 1. The mounting base 1 is provided with a first round table 3 and a second round table 4, which are made of copper and have a planar cone table structure above, and the taper is 70 degrees.
An antenna fixing plate is respectively arranged on the first round table 3 and the second round table 4, an X microstrip transmitting antenna 7 is horizontally arranged on the antenna fixing plate 5 of the first round table 3, a first through hole is arranged at the center of the X microstrip transmitting antenna 7, a Ku spiral transmitting antenna 8 for coating a cable is arranged in the first through hole, the Ku spiral transmitting antenna 8 penetrates through the antenna fixing plate and is connected with a Ku frequency band transmitting port 11 at the bottom surface, and an X frequency band transmitting port 12 connected with the X microstrip transmitting antenna 7 is further arranged at the bottom surface of the antenna fixing plate 5 of the first round table 3; an X microstrip receiving antenna 9 is horizontally arranged on an antenna fixing plate 6 of the second round table 4, a second through hole is formed in the center of the X microstrip receiving antenna 9, a Ku spiral receiving antenna 10 for covering a cable is arranged in the second through hole, the Ku spiral receiving antenna 10 penetrates through the antenna fixing plate and is connected with a Ku frequency band receiving port 13 on the bottom surface, and an X frequency band receiving port 14 connected with the X microstrip receiving antenna 9 is further arranged on the bottom surface of the antenna fixing plate 6 of the second round table 4.
The Ku helical transmitting antenna 8 is a left-handed circularly polarized right-handed single-arm helical antenna. The Ku helical receiving antenna 10 is a left-handed single-arm helical antenna of left-handed circular polarization. Both are formed by winding three turns with the diameter of 0.5 mm. The bottom of the Ku spiral transmitting antenna 8 and the Ku spiral receiving antenna 10 is provided with a small microstrip plate 15 for matching impedance. The mini-microstrip board 15 is a Rogers TMM3 high-frequency board, the surface of which is processed with anti-oxidation treatment, and the mini-microstrip board and the bottom of the helical antenna are welded on the antenna fixing board together.
The Ku spiral transmitting/receiving antenna and the X micro-strip transmitting/receiving antenna are fed by a single feed point, signals are led out by a probe in a circular truncated cone and are connected to a signal line of an antenna feeder line, and the circular truncated cone is used as the ground of the antenna and is connected to the ground of the antenna feeder line. The distance between the Ku spiral antenna in each circular table and the X microstrip antenna signal probe is 5-6 mm. The horizontal distance between the first through hole and the second through hole is 40mm, and the lobe width can be further widened by combining the conicity of 470 degrees of the first round platform 3 and the second round platform.
The antenna works in Ku and X double-frequency full duplex mode, a communication channel is added, the weight of a transmitting antenna is 200g, the size is less than or equal to phi 40 multiplied by 30, the weight of a receiving antenna is 150g, and the size is less than or equal to phi 40 multiplied by 30. The standing-wave ratio of the two frequency bands of the antenna is less than or equal to 2.0, and the coverage range of the wave beams is psi 0-360 theta +/-60.
Claims (7)
1. The utility model provides an unmanned aerial vehicle machine carries dual-band antenna which characterized in that: the antenna fixing plate of the first round platform is horizontally provided with an X-shaped microstrip transmitting antenna, a first through hole is formed in the center of the X-shaped microstrip transmitting antenna, a Ku spiral transmitting antenna coated with a cable is arranged in the first through hole, the Ku spiral transmitting antenna penetrates through the antenna fixing plate and is connected with a Ku frequency band transmitting port on the bottom surface, and an X frequency band transmitting port connected with the X-shaped microstrip transmitting antenna is further arranged on the bottom surface of the antenna fixing plate of the first round platform; an X microstrip receiving antenna is horizontally arranged on an antenna fixing plate of the second round table, a second through hole is formed in the center of the X microstrip receiving antenna, a Ku spiral receiving antenna for wrapping cables is arranged in the second through hole, the Ku spiral receiving antenna penetrates through the antenna fixing plate and is connected with a Ku frequency band receiving port on the bottom surface, and an X frequency band receiving port connected with the X microstrip receiving antenna is further arranged on the bottom surface of the antenna fixing plate of the second round table.
2. The dual-band antenna on board an drone of claim 1, characterized in that: the Ku spiral transmitting antenna is a left-handed circularly polarized right-handed single-arm spiral antenna.
3. The dual-band antenna on board an drone of claim 2, characterized in that: the Ku spiral receiving antenna is a left-handed single-arm spiral antenna with left-handed circular polarization.
4. The dual-band antenna on board an drone of claim 3, characterized in that: and a small microstrip plate for matching impedance is arranged at the bottom of the Ku spiral transmitting antenna and the Ku spiral receiving antenna.
5. The dual-band antenna on board an unmanned aerial vehicle of any of claims 1-4, wherein: the Ku spiral transmitting antenna and the Ku spiral receiving antenna are antennas wound by three circles with the diameter of 0.5 mm.
6. The dual-band antenna on board an unmanned aerial vehicle of any of claims 1-4, wherein: the horizontal distance between the first through hole and the second through hole is 40 mm.
7. The dual-band antenna on board an drone of claim 6, characterized in that: the circular truncated cone is a circular truncated cone structure which is made of metal copper and provided with a plane at the upper part, and the taper is 70 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004718.2U CN210430082U (en) | 2019-06-28 | 2019-06-28 | Airborne dual-frequency antenna of unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004718.2U CN210430082U (en) | 2019-06-28 | 2019-06-28 | Airborne dual-frequency antenna of unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210430082U true CN210430082U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921004718.2U Active CN210430082U (en) | 2019-06-28 | 2019-06-28 | Airborne dual-frequency antenna of unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210430082U (en) |
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2019
- 2019-06-28 CN CN201921004718.2U patent/CN210430082U/en active Active
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