CN218415008U

CN218415008U - Antenna, wireless signal processing equipment and unmanned aerial vehicle

Info

Publication number: CN218415008U
Application number: CN202121683624.XU
Authority: CN
Inventors: 宋建平; 孙雪峰; 王建磊
Original assignee: Shenzhen Autel Intelligent Aviation Technology Co Ltd
Current assignee: Shenzhen Autel Intelligent Aviation Technology Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2023-01-31
Anticipated expiration: 2031-07-22

Abstract

The utility model relates to an antenna technology field especially relates to an antenna, radio signal processing equipment and unmanned aerial vehicle. The antenna includes: a substrate, the substrate comprising a substrate surface; a first radiation part and a second radiation part provided on the substrate surface; the frequency band corresponding to the first radiation part is higher than the frequency band corresponding to the second radiation part; feed lines electrically connected to the first and second radiation portions, respectively; a guide unit disposed at one side of the substrate surface; the guide unit has a first length within a first preset range so as to enhance the radiation of the first radiation part in the target direction. The antenna can enable the high-frequency band signal to deviate towards the target direction on the premise of not causing interference to the low-frequency band signal of the second radiation part, and improves the directivity of the high-frequency band signal.

Description

Antenna, wireless signal processing equipment and unmanned aerial vehicle

[ technical field ] A method for producing a semiconductor device

The utility model relates to an antenna structure technical field especially relates to an antenna, radio signal processing equipment and unmanned aerial vehicle.

[ background ] A method for producing a semiconductor device

The antenna is a key component for realizing the transceiving of electromagnetic wave wireless signals. Its performance has a significant impact on unmanned aerial vehicles and other devices that rely on remote wireless data transmission.

With the continuous development of electronic information technology and the continuous enrichment of device functions, many antennas are required to meet the requirements of a plurality of different frequency bands. Some multi-frequency antennas that can work in dual-frequency antennas or tri-frequency antennas of a plurality of frequency channels are provided to meet the use needs of similar equipment such as unmanned aerial vehicles.

However, in some application scenarios, characteristics of transmission signals in different frequency bands may differ, and people expect that the multi-frequency antenna can have different characteristics in different frequency bands to better adapt to differences between different frequency bands, thereby improving performance of wireless signal transmission. This presents a great challenge to the structural design of the antenna, and it is highly desirable to provide an antenna that better meets the practical needs.

[ summary of the invention ]

The utility model aims at providing an antenna, radio signal processing equipment and unmanned aerial vehicle can solve the problem that current multifrequency antenna can't fine satisfy the in-service use needs.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solution: an antenna is provided.

The antenna includes: a substrate, the substrate comprising a substrate surface; a first radiation part and a second radiation part provided on the substrate surface; the frequency band corresponding to the first radiation part is higher than the frequency band corresponding to the second radiation part; feed lines electrically connected to the first and second radiation portions, respectively; a guide unit disposed at one side of the substrate surface; the guide unit has a first length within a first preset range so as to enhance radiation of the first radiation part in a target direction.

Optionally, the first radiation part and the second radiation part are both symmetrically arranged along the width direction of the substrate; the first radiation part and the second radiation part share at least a part of the oscillator unit.

Optionally, the oscillator unit shared by the first radiation portion and the second radiation portion includes: the first vibrator unit and the second vibrator unit are symmetrically arranged along the width direction of the substrate;

the first and second vibrator units extend in the width direction of the substrate to form first and second ends that are separated from each other.

Optionally, the first radiation part further includes: the third vibrator unit and the fourth vibrator unit are symmetrically arranged along the width direction of the substrate;

one end of the third vibrator unit is connected to the first end of the first vibrator unit, and one end of the fourth vibrator unit is connected to the first end of the second vibrator unit;

the third vibrator unit and the fourth vibrator unit extend in the length direction of the substrate and have a second length within a second preset range.

Optionally, the second preset range is: greater than 1/8 of the wavelength of the electrical signals of the first frequency band and less than 3/4 of the wavelength of the electrical signals of the first frequency band.

Optionally, the second radiation portion further includes: the fifth vibrator unit and the sixth vibrator unit are symmetrically arranged along the width direction of the substrate;

one end of the fifth vibrator unit is connected to the second end of the first vibrator unit, and one end of the sixth vibrator unit is connected to the second end of the second vibrator unit;

the fifth and sixth vibrator units have a third length within a third preset range.

Optionally, the third preset range is: greater than 1/8 of the wavelength of the electrical signals in the second frequency band and less than 3/4 of the wavelength of the electrical signals in the second frequency band.

Optionally, the fifth oscillator unit includes: a first portion extending in a longitudinal direction of the substrate, one end of the first portion being connected to a second end of the first vibrator unit; and a second portion extending in the width direction of the substrate, the second portion being formed by extending the other end of the first portion away from the first vibrator unit.

Optionally, the first portion is a serpentine structure provided with a plurality of bends;

the bending is formed by two conductor line segments with different extension directions, the conductor line segments have preset first widths, and the conductor line segments are formed by linearly extending the substrate surface along the extension directions.

Optionally, the first portion is provided with a bend that is a straight corner; the straight line corner is formed by the intersection of the two conductor line segments forming the bend.

Optionally, the first portion is provided with a bend which is an arc corner; the arc corner is formed by arc sections of which two ends are respectively connected with the two bent conductor line sections, and the arc sections have preset radians.

Optionally, the first portion is a linear structure formed by a conductor line segment extending linearly along a length direction of the substrate; the conductor line segment has a predetermined second width.

Optionally, the conductor line segment extends to an edge of the substrate; the substrate has a preset substrate length, so that the fifth vibrator unit has a third length within a third preset range.

Optionally, the substrate surface comprises: a first side and a second side symmetrical along the length direction of the substrate;

the distance between the first side edge and the first radiation part is smaller than the distance between the first side edge and the second radiation part;

the distance between the second side and the first radiation part is greater than the distance between the second side and the second radiation part.

Optionally, the guiding unit is disposed at the first side or the second side.

Optionally, the directing unit comprises: a conductor line segment extending to the first length along a length direction of the substrate; the conductor line segment is arranged close to the first side edge or the second side edge.

Optionally, the first preset range is: greater than 1/4 of the wavelength of the electrical signals in the first frequency band and less than 1/2 of the wavelength of the electrical signals in the second frequency band.

Optionally, the first frequency band is a 5.8GHz frequency band, and the second frequency band is a 2.4GHz frequency band.

Optionally, the antenna further comprises: a pair of connecting line segments arranged on the back of the substrate, wherein the back of the substrate is the bottom surface of the substrate opposite to the surface of the substrate;

the pair of connecting line sections are respectively and electrically connected with the first vibrator unit and the second vibrator unit;

the feeder line is electrically connected with the first oscillator unit and the second oscillator unit through the connecting line segment.

Optionally, two via connecting lines passing through the substrate; the substrate is provided with a via hole for the via hole connecting line to pass through and penetrate through the surface of the substrate and the back of the substrate;

and the two connecting line sections are electrically connected with the first oscillator unit and the second oscillator unit through the two via hole connecting lines respectively.

Optionally, the feeder is a coaxial line; the inner conductor of the coaxial line is electrically connected with the first vibrator unit through the connecting line segment, and the outer conductor of the coaxial line is electrically connected with the second vibrator unit through the connecting line segment.

In order to solve the above technical problem, an embodiment of the present invention further provides the following technical solution: a wireless signal processing apparatus. The wireless signal processing apparatus includes: an antenna as described above for transmitting or receiving a wireless signal; and the transmitting path is used for loading the information content into the radio frequency carrier signal to form a wireless signal and transmitting the wireless signal through the antenna.

In order to solve the above technical problem, an embodiment of the present invention further provides the following technical solution: an unmanned aerial vehicle. This unmanned aerial vehicle includes: a fuselage having a landing gear thereon; the motor is arranged on the unmanned aerial vehicle body and used for providing flying power for the unmanned aerial vehicle; an antenna as described above, mounted within the landing gear.

The utility model discloses antenna has the unit that leads to of suitable length, can make the high band signal squint to the target direction under the prerequisite that does not cause the interference to the low band signal of second radiating part, improves the directionality of high band signal. The antenna is a high-frequency-band directional and low-frequency-band omnidirectional dual-frequency antenna, and can better meet the requirements of specific use scenes.

[ description of the drawings ]

One or more embodiments are illustrated by way of example in the accompanying drawings which correspond to and are not to be construed as limiting the embodiments, in which elements having the same reference numeral designations represent like elements throughout, and in which the drawings are not to be construed as limiting in scale unless otherwise specified.

Fig. 1 is a schematic structural diagram of an antenna according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an antenna according to another embodiment of the present invention;

fig. 3 is a schematic view of a back surface of a substrate of an antenna according to an embodiment of the present invention;

fig. 4 is a schematic view of a connection structure between a feeder line and a radiation portion according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a radiation portion according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a radiation portion according to another embodiment of the present invention;

fig. 7 is a schematic diagram of S parameters of an antenna according to an embodiment of the present invention;

fig. 8 is a low-frequency directional diagram of the antenna in the horizontal direction (H direction) according to an embodiment of the present invention;

fig. 9 is a high-band directional diagram of the antenna in the horizontal direction (H direction) according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a wireless signal processing apparatus according to an embodiment of the present invention;

fig. 11 is a schematic diagram of the unmanned aerial vehicle provided by the embodiment of the utility model.

[ detailed description ] A

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "bottom", and the like as used herein are used in the description to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 is a schematic structural diagram of an antenna according to an embodiment of the present invention. As shown in fig. 1, the antenna mainly includes a substrate 10 as a base of an antenna structure, radiating portions (21, 22) composed of element units having a specific structural shape, a lead-to unit 23, and a feed line 30 for transmitting a signal.

The substrate 10 is a relatively flat plate-like structure having two flat surfaces, a front surface and a back surface. It can be made of any type of material (e.g., plastic, foam) to form a non-conductive structure. Specifically, FR-4 board material may be selected for substrate 10.

The substrate 10 may have any suitable shape (e.g., rectangular, trapezoidal) and size as required by the actual application scenario of the antenna. In the present embodiment, the substrate 10 is exemplified by a long rectangle. Of course, those skilled in the art can select other suitable shapes or change the size of the substrate 10 according to the actual requirements.

The "radiating parts" (21, 22) refer to resonance units for receiving or transmitting radio signals of a specific frequency band. Which, as the core of the overall antenna system, may generally consist of one or more identical or different element units of a particular shape and size.

The vibrator elements may be conductor segments of any suitable form (e.g., patch type) fixed on the surface of the substrate 10 and having a specific size and shape. The wireless signal receiving and transmitting device has proper length, width and wiring form, and realizes the receiving or transmitting of wireless signals belonging to specific frequency bands through the electromagnetic induction principle. In this embodiment, the antenna may include a first radiation portion 21 and a second radiation portion 22, which correspond to wireless signals of different frequency bands, respectively, so as to meet the use requirement of a dual-band antenna.

The first radiation portion 21 may correspond to a high frequency signal, and the second radiation portion 22 corresponds to a low frequency signal. The above-mentioned "low frequency" and "high frequency" are a set of relative concepts, and are only used to indicate that the frequency band corresponding to the first radiation portion 21 is higher than that of the second radiation portion 22, and are not used to limit the frequency bands specifically corresponding to the first radiation portion 21 and the second radiation portion 22. For example, the first radiation portion 21 may correspond to a 5.8GHz band, and the second radiation portion 22 corresponds to a 2.4GHz band with a lower frequency. For convenience of presentation, in the following description, the higher frequency band corresponding to the first radiation portion is referred to as a "first frequency band"; the lower frequency band corresponding to the second radiation portion is referred to as a "second frequency band".

In some embodiments, the first radiation portion 21 and the second radiation portion 22 are both designed to have a symmetrical structure in the width direction of the substrate 10, and share a part of the oscillator unit.

Here, the "width direction" refers to a direction in which the symmetry axis corresponding to the shorter side of the substrate 10 is directed. In the elongated substrate 10, another direction in which another axis of symmetry corresponding to the longer side of the substrate is directed, which may be referred to as a "length direction", is also included. For example, in the substrate of a long rectangle shown in fig. 1, the width direction is a direction in which a symmetry axis parallel to the shorter side of the substrate is directed. And the length direction is the direction in which the axis of symmetry parallel to the longer side of the substrate points.

Of course, the substrate 10 may also be of an asymmetric design. The above-mentioned "width direction" and "length direction" are only used to explain that the projected length of the substrate in the "length direction" is significantly larger than the "width direction", and are not used to limit the specific shape of the substrate 10.

The directing unit 23 is a device for directing the radiation energy of the antenna. It may be implemented in any suitable structure, for example, as shown in fig. 1 and 2, a conductor line segment (microstrip line) extending along the length direction of the substrate. The position of the antenna is arranged on one side of the surface of the substrate, so that the radiation energy of the antenna can be concentrated or enhanced towards the target direction, and the antenna has stronger directivity.

The "side of the substrate surface" refers to two substrate sides that the substrate width direction passes through. The "target direction" refers to a direction in which the radiant energy of the first radiation portion 21 is guided to the unit 23 to be concentrated. The specific direction of which can be determined by providing a suitable directing unit 23.

In some embodiments, as shown in fig. 1, the directing unit 23 may be disposed on the same side of the substrate as the first radiation part 21. In other embodiments, as shown in fig. 2, the guide unit 23 may also be disposed at the opposite side of the first radiation part 21. For the sake of convenience of presentation, the position of arrangement directed to the unit 23 shown in fig. 1 may be referred to as "first side edge", and the position of arrangement directed to the unit 23 shown in fig. 2 may be referred to as "second side edge".

The first side edge is a substrate side edge close to the first radiation part, and the distance between the first side edge and the first radiation part is smaller than the distance between the first side edge and the second radiation part. The second side edge is closer to the first radiation part, and the distance between the second side edge and the first radiation part is larger than the distance between the second side edge and the second radiation part.

Of course, the directing unit 23 not only can make the direction of the first radiation portion 21 shift accordingly to achieve the effect of improving the directivity of the high-frequency signal, but also needs to avoid the negative influence on the omnidirectionality of the second radiation portion 22 as much as possible. In particular, the length of the guiding unit 23 can be controlled to achieve the desired guiding effect (i.e. not interfering with the second frequency band while having a significant effect on the radiated energy in the first frequency band).

To distinguish from the dimensional lengths of the other element cells in the radiation section, the length of the guide unit 23 is represented by "first length". The first length is a value within a first predetermined range. The first preset range may be determined according to the size lengths (or the specific corresponding frequency bands) of the first and second radiation parts.

In some embodiments, the first predetermined range is: greater than 1/4 of the wavelength of the electrical signals of the first frequency band and less than 1/2 of the wavelength of the electrical signals of the second frequency band.

The feeder line 30 is a signal transmission path connecting the "radiating section" with other signal processing systems. It usually uses a coaxial cable or the like with good shielding and signal transmission performance to transmit the wireless signal received or transmitted by the "radiating part".

In some embodiments, the feed lines 30 may run on the back of the substrate, as shown in fig. 3. Which extends outward from a connection node with the back surface of the substrate to be connected to other external devices.

The "substrate back surface" refers to a bottom surface opposite to the substrate surface. In other words, the radiating portions (21, 22) and the lead-to unit 23 of the antenna are arranged on the front surface of the substrate 10, and the feed line 30 runs on the back surface of the substrate 10. The connection node may be a microstrip line or similar conductor arranged on the back of the substrate establishing an electrical connection between the radiating portion and the feed line.

The embodiment of the utility model provides an antenna one of them favorable aspect is: the guiding unit with the proper length can be tightly coupled with the first radiating part on the premise of not causing interference to the low-frequency-band signal of the second radiating part, so that the high-frequency-band signal is shifted to a target direction, and the directivity of the high-frequency-band signal is improved, so that the dual-frequency antenna with the directional high-frequency band and the omnidirectional low-frequency band can better meet the requirements of specific use scenes.

In carrying out the present invention, it has been surprisingly found that first radiating portion 21 and second radiating portion 22 having unique layouts or structural configurations can provide better dual-band antenna performance.

In some embodiments, as shown in fig. 1 and 2, the oscillator unit shared by the first radiation part 21 and the second radiation part 22 may include: a first vibrator unit 201 and a second vibrator unit 202.

The first transducer unit 201 and the second transducer unit 202 are both symmetrical in shape and are symmetrically disposed along the axis a (i.e., the width direction) of the substrate. Further, the first vibrator unit 201 and the second vibrator unit 202 each extend in the width direction of the substrate, and a microstrip line shorter than the width of the substrate is formed on the surface of the substrate. In the present embodiment, both ends of the microstrip line are referred to as a "first end" and a "second end", respectively.

In some embodiments, as shown in fig. 3, the feed line 30 may be electrically connected to the first and

second oscillator units

201 and 202, respectively, which are commonly used, through two connecting line segments 40 disposed on the back surface of the substrate. Thereby, the connection of the feed line 30 with the first radiation portion 21 and the second radiation portion 22 is achieved.

Specifically, as shown in fig. 4, the connecting line segment 40 may be a microstrip line or a similar conductor line segment with a certain length, which is disposed on the back surface of the substrate. The feed line 30 is electrically connected to the two connecting line sections 40 by suitable connection means.

For example, when a coaxial line is used as the feed line 30, the inner conductor of the coaxial line may be electrically connected to the first vibrator unit through a connecting line segment, and the outer conductor of the coaxial line may be electrically connected to the second vibrator unit through another connecting line segment.

With reference to fig. 4, the two connecting line segments 40 on the back side of the substrate may be disposed at suitable positions (for example, positions opposite to the first and second vibrator units) and electrically connected to the first and

second vibrator units

201 and 202 on the surface of the substrate through the via connecting lines 50 penetrating through the substrate.

The "via hole" refers to a hole formed in the substrate 10 and penetrating through the back surface and the front surface of the substrate. Which may allow the via connection lines 50 to pass through to establish electrical connections between the connection line segments located on the back and surface of the substrate, respectively, and the common vibrator unit.

Referring to fig. 1, the first radiating portion 21 may further include a third oscillator unit 213 and a fourth oscillator unit 214 in addition to the common oscillator unit. The second radiating section 22 may include a third transducer element 223 and a fourth transducer element 224 in addition to the common transducer element.

Similarly, the third transducer element 213 and the fourth transducer element 214 are symmetrically disposed along the axis a (i.e., the width direction) of the substrate so as to satisfy the requirement of symmetrically disposing the first radiating portion 21. The third transducer element 213 and the fourth transducer element 214 have different extending directions from the common transducer element. Which extends from the first end of the common vibrator unit along the length direction of the substrate by a certain length to form a vibrator structure similar to an 'L' shape with the common vibrator unit.

Specifically, the third element unit 213 and the fourth element unit 214 may be understood as element arms, and need to have a suitable length to achieve sufficient antenna performance. In this embodiment, the length of the size of the third transducer element 213 or the fourth transducer element 214 may be referred to as a "second length". The second length may be set with reference to the wavelength of the electrical signal in the first frequency band. For example, the second length may be controlled to be within a second preset range. The second preset range may be: greater than 1/8 and less than 3/4 of the wavelength of the electrical signals in the first frequency band.

Similarly, the fifth transducer element 223 and the sixth transducer element 224 have a symmetrical structural form in the width direction. The fifth transducer element 223 and the sixth transducer element 224 extend from the other end (second end) of the common transducer element to form a transducer arm portion.

Specifically, the fifth transducer element 223 and the sixth transducer element 224 also need to be set to have appropriate lengths to satisfy the performance of the second radiation section in the low frequency band. In the present embodiment, the dimension length of the fifth transducer element 223 or the sixth transducer element 224 may be referred to as a "third length".

The third length may be determined according to the wavelength of the electrical signal in the second frequency band. For example, the third length may be controlled to be within a preset third range. The second range may be: greater than 1/8 and less than 3/4 of the wavelength of the electrical signals in the second frequency band.

It should be noted that the fifth element 223 and the sixth element 224 may adopt various suitable types of shape structures to obtain suitable low-band antenna performance, and are not limited to the shape structures shown in fig. 1. For example, the shape structure shown in fig. 5 or the shape structure shown in fig. 6.

The sixth transducer element 224 is symmetrical to the fifth transducer element 223. In order to avoid redundant description, the structures of the fifth vibrator unit and the sixth vibrator unit will be described and introduced in detail below by taking only the fifth vibrator unit 223 as an example.

In some embodiments, as shown in fig. 5, the fifth transducer element 223 has a corner, and may be roughly divided into a first portion 223a extending in the length direction and a second portion 223b extending in the width direction.

Wherein one end of the first portion 223a is connected to the second end of the first vibrator unit 201. The first portion is bent when extending in the length direction to approach the edge of the substrate 10, and forms a second portion 223b extending in the width direction by a certain distance.

With continued reference to fig. 5, a plurality of bends 223c may be provided in both the first portion 223a and the second portion 223b. Each bend 223c can be considered to be formed by two conductor segments disposed on the substrate surface and extending in different directions. Specifically, the conductor segments may be microstrip lines having a predetermined width. The preset width is an empirical value and can be set by a technician according to the needs of the actual situation.

In the antenna shown in fig. 5, the plurality of continuous bends 223c form the first portion 223a (or the entire fifth element unit) into a serpentine-like structure. One of the advantages of such serpentine structures is: the fifth transducer element can be formed to be long on the substrate 10 having a short length, and the substrate 10 can be easily miniaturized.

In other embodiments, as shown in fig. 6, the fifth transducer element 223 may also be roughly divided into a first portion 223a extending in the length direction and a second portion 223b extending in the width direction.

In contrast to the antenna shown in fig. 5, in the antenna shown in fig. 6, the first portion 223a has a linear structure extending along a straight line, instead of a serpentine structure.

Referring to fig. 6, the conductor segment forming the first portion 223a may be a microstrip line having a predetermined second width and parallel to the length direction of the substrate. Specifically, when the first portion 223a is in a straight-line structure, it may extend from the second end of the first transducer element up to the edge of the substrate. It will be appreciated that the length of the first portion 223a at this time is largely determined by the length of the substrate 10.

Therefore, the technician can adjust the length of the substrate 10 and the wiring area of the fifth element unit according to the actual situation to enable the fifth element unit to have the size length equivalent to the third length, thereby achieving the low-frequency antenna performance meeting the use requirement.

In still other embodiments, as shown in fig. 1, the main difference between the antenna shown in fig. 5 is that: the bend 223c of the fifth element unit adopts a circular arc corner (in the antenna shown in fig. 5, the bend 223c of the first portion 223a is a straight corner).

The "straight corner" refers to a corner formed by two bent conductor segments directly intersecting with each other. The "arc corner" refers to a corner formed by connecting and transitioning two bent conductor segments through an arc.

In other words, the chamfered design is eliminated in the corner shown in fig. 6, relative to the radiused corner shown in fig. 1. Alternatively, on the basis of the straight-line corner shown in fig. 6, a chamfer design is performed to obtain the circular-arc corner shown in fig. 1.

The embodiment of the present invention provides a fifth vibrator unit, wherein one of the advantages of chamfering the linear corner is: the discontinuity at the corners can be reduced and the radiation performance of the oscillator unit (i.e. microstrip line) can be improved.

It should be noted that the antennas shown in fig. 1 to 6 are only used for illustration, and one skilled in the art may add, adjust, replace or omit one or more functional components according to the needs of the actual situation, and are not limited to those shown in fig. 1 to 6. The technical features involved in the embodiments of the antenna shown in fig. 1 to 6 can be combined with each other as long as they do not conflict with each other and can be applied independently in different embodiments as long as they do not depend on each other.

Fig. 7 is a schematic diagram of S parameters of an antenna according to an embodiment of the present invention. As shown in fig. 7, the antenna provided by the above embodiment can operate at 2.4GHz to 2.5GHz (low band) and 5.31GHz to 6GHz (high band). Therefore, the coverage of two frequency bands of 2.4GHz and 5.8GHz can be realized.

Fig. 8 and 9 are antenna patterns of the antenna at the low frequency band and the high frequency band provided by the embodiment of the present invention, respectively. As shown in fig. 8, the antenna provided by the embodiment of the present invention has the characteristics of good omni-directionality at a low frequency band and no defect in a specific direction. As shown in fig. 9, the directional diagram of the antenna provided by the embodiment of the present invention on the high frequency band deviates along the target direction, and has the characteristic of high frequency orientation.

Based on the antenna that above embodiment provided, the embodiment of the utility model provides a still further provides a wireless signal processing equipment. The embodiment does not limit the specific implementation of the wireless signal processing device, and it can be any type or kind of electronic device for wireless signal transceiving, such as a remote controller, a smart terminal, a wearable device, or a signal transceiver of a mobile vehicle.

Fig. 10 is a schematic structural diagram of a wireless signal processing apparatus according to an embodiment of the present invention. As shown in fig. 10, the wireless signal processing apparatus includes: an antenna 100, a transmit path 200, and a receive path 300. The antenna 100 is connected to the receiving path 200 or the transmitting path 300 by a feeder line to realize signal transmission therebetween.

The antenna 100 may specifically be an antenna described in one or more embodiments above, which is determined by the specific implementation of the wireless signal processing device. For example, antenna 100 may be an omni-directional antenna covering two frequency bands.

The transmission path 200 is a functional module for loading information content to be transmitted to a carrier signal to form a wireless signal. It may in particular be of any type, formed by a combination of one or more electronic components, such as a radio-frequency chip, which can generate wireless signals.

The receiving path 300 is an electronic system, such as a decoding chip of a specific model, for analyzing the wireless signal received by the antenna to obtain the information content contained in the wireless signal. Which has an opposite information flow direction to the transmission path 200, is a functional block for completing information acquisition.

In some embodiments, one of the transmit path 200 and the receive path 300 may be omitted, depending on the particular implementation of the wireless signal processing device. For example, when the wireless signal processing device is a remote controller, the receiving path 300 may be omitted and only the transmitting path 200 may be provided.

The embodiment of the utility model provides a still further provide the unmanned aerial vehicle who uses the antenna that the above embodiment provided. Fig. 11 is the utility model provides an use unmanned aerial vehicle's of above-mentioned antenna schematic diagram. As shown in fig. 11, the drone may include: a body 400, a power assembly 500, a battery 600, and an antenna.

Wherein, fuselage 400 can adopt any suitable material to make and have structure and the size that accords with the use needs as unmanned aerial vehicle's major structure. The fuselage 400 may have various features such as a horn 410, landing gear 420, and a camera 430. Of course, one skilled in the art may add or omit one or more functional components according to the needs of the actual situation, for example, a corresponding pan/tilt head 440 may be added to the camera 430.

Power assembly 500 is installed on fuselage 400 for provide flight power for unmanned aerial vehicle. The power assembly may be provided with one or more power elements arranged at corresponding positions of the fuselage 400 to provide sufficient flight power and attitude control capability for the drone.

Battery 600 carries on fuselage 400, as the equipment of stored energy, can provide the electric energy for equipment on unmanned aerial vehicle such as power component 500. Of course, other types of energy storage devices may be used to provide energy to the drone.

The antenna is mounted housed within any one of the landing gears 420. The substrate 10 of the antenna may have or form a shape that fits into the receiving space formed inside the undercarriage 420 so as to be stably disposed within the undercarriage 420.

The undercarriage 420 with the built-in antenna is used as one part of the wireless signal transceiving equipment to receive a remote control operation command from a remote controller or feed back relevant data information (such as a shot image and an operation state parameter of the unmanned aerial vehicle) to the remote controller or other intelligent terminals.

Of course, based on the application scenario of the drone provided by the above embodiments, those skilled in the art can also apply the antenna provided by the above embodiments to other similar unmanned mobile vehicles without being limited to the drone shown in fig. 11.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An antenna, comprising:

a substrate comprising a substrate surface;

a first radiation part and a second radiation part provided on the substrate surface; the first radiation part corresponds to a first frequency band, and the second radiation part corresponds to a second frequency band; the first frequency band is higher in frequency than the second frequency band;

feed lines electrically connected to the first and second radiation portions, respectively;

a guide unit disposed at a side of the substrate surface; the guide unit has a first length within a first preset range so as to enhance radiation of the first radiation part in a target direction.

2. The antenna according to claim 1, wherein the first radiation portion and the second radiation portion are each provided symmetrically in a width direction of the substrate;

the first radiation part and the second radiation part share at least a part of the oscillator unit.

3. The antenna according to claim 2, wherein the element unit common to the first radiation portion and the second radiation portion includes: the first vibrator unit and the second vibrator unit are symmetrically arranged along the width direction of the substrate;

the first vibrator unit and the second vibrator unit extend along the width direction of the substrate to form a first end and a second end which are separated from each other.

4. The antenna of claim 3, wherein the first radiating portion further comprises: a third vibrator unit and a fourth vibrator unit symmetrically arranged along the width direction of the substrate;

5. The antenna of claim 4, wherein the second predetermined range is: greater than 1/8 of the wavelength of the electrical signals of the first frequency band and less than 3/4 of the wavelength of the electrical signals of the first frequency band.

6. The antenna of claim 3, wherein the second radiating portion further comprises: the fifth vibrator unit and the sixth vibrator unit are symmetrically arranged along the width direction of the substrate;

7. The antenna of claim 6, wherein the third predetermined range is: greater than 1/8 of the wavelength of the electrical signals in the second frequency band and less than 3/4 of the wavelength of the electrical signals in the second frequency band.

8. The antenna of claim 6, wherein the fifth element unit comprises:

a first portion extending in a longitudinal direction of the substrate, one end of the first portion being connected to a second end of the first vibrator unit;

and a second portion extending in the width direction of the substrate, the second portion being formed by extending the other end of the first portion away from the first vibrator unit.

9. An antenna according to claim 8, wherein the first portion and/or the first portion is a serpentine structure provided with a plurality of bends;

the bend is formed by two conductor line segments with different extension directions, and the conductor line segments have a preset first width.

10. The antenna of claim 9, wherein the bend is a straight corner; the straight line corner is formed by the intersection of the two conductor line segments forming the bend.

11. The antenna of claim 9, wherein the bend is a radiused corner; the arc corner is formed by arc sections of which two ends are respectively connected with the two bent conductor line sections, and the arc sections have preset radians.

12. The antenna of claim 8, wherein the first portion is a straight line structure formed by a conductor line segment extending straight along a length of the substrate; the conductor line segment has a second predetermined width.

13. The antenna defined in claim 12 wherein the conductor line segment extends to an edge of the substrate; the substrate has a preset substrate length, so that the fifth vibrator unit has a third length within a third preset range.

14. The antenna of claim 1, wherein the substrate surface comprises: a first side and a second side symmetrical along the length direction of the substrate;

the distance between the second side edge and the first radiation part is greater than the distance between the second side edge and the second radiation part.

15. The antenna of claim 14, wherein the directing unit is disposed at the first side or the second side.

16. The antenna of claim 14, wherein the directing unit comprises: a conductor line segment linearly extending to the first length along the length direction of the substrate;

the conductor line segment is arranged close to the first side edge or the second side edge.

17. The antenna of any one of claims 1 to 16, wherein the first predetermined range is: greater than 1/4 of the wavelength of the electrical signals in the first frequency band and less than 1/2 of the wavelength of the electrical signals in the second frequency band.

18. The antenna of any of claims 1-16, wherein the first frequency band is a 5.8GHz frequency band and the second frequency band is a 2.4GHz frequency band.

19. The antenna of claim 3, further comprising:

the two connecting line segments are arranged on the back surface of the substrate, and the back surface of the substrate is a bottom surface of the substrate opposite to the surface of the substrate;

the two connecting line sections are respectively and electrically connected with the first vibrator unit and the second vibrator unit;

the feeder line is electrically connected with the first oscillator unit and the second oscillator unit through the two connecting line sections respectively.

20. The antenna of claim 19, further comprising:

two via connecting lines passing through the substrate; the substrate is provided with a via hole through which the via hole connecting line passes and penetrates through the surface of the substrate and the back of the substrate;

and the two connecting line sections are electrically connected with the first vibrator unit and the second vibrator unit through the two via hole connecting lines respectively.

21. The antenna of claim 19, wherein the feed line is a coaxial line; the inner conductor of the coaxial line is electrically connected with the first vibrator unit through the connecting line segment, and the outer conductor of the coaxial line is electrically connected with the second vibrator unit through the connecting line segment.

22. A wireless signal processing device, comprising:

an antenna as claimed in any one of claims 1 to 21, for transmitting or receiving wireless signals;

and the transmitting path is used for loading the information content into the radio frequency carrier signal to form a wireless signal and transmitting the wireless signal through the antenna.

23. An unmanned aerial vehicle, comprising:

a fuselage having a landing gear thereon;

the power assembly is mounted on the unmanned aerial vehicle and used for providing flight power for the unmanned aerial vehicle;

an antenna according to any of claims 1 to 21, mounted within the landing gear.