CN215220987U

CN215220987U - Antenna, wireless signal processing equipment and unmanned aerial vehicle

Info

Publication number: CN215220987U
Application number: CN202120623024.8U
Authority: CN
Inventors: 宋建平; 王建磊
Original assignee: Shenzhen Autel Intelligent Aviation Technology Co Ltd
Current assignee: Shenzhen Autel Intelligent Aviation Technology Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-12-17
Anticipated expiration: 2031-03-26

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 having a planar substrate surface; the first radiation part and the second radiation part are arranged on the surface of the substrate, are symmetrical along the axis of the substrate and correspond to different frequency bands; a feed line connected to the first radiation section and the second radiation section, respectively; the pad body is arranged between the feeder line and the surface of the substrate so as to keep the distance between the feeder line and the surface of the substrate. The antenna adopts reasonable wiring and structural design, and can meet the use requirement of the multi-frequency antenna on a substrate with smaller volume. Moreover, the pad structure can increase the distance between the feeder line and the substrate, and avoids the interference of the feeder line on the resonance wave when transmitting signals.

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 of the invention ]

The antenna is a key component for realizing the transceiving of electromagnetic wave wireless signals. The performance of the wireless data transmission system has great influence on equipment such as unmanned planes and the like which need remote wireless data transmission. With the continuous development of electronic information technology, the requirement for wireless transmission performance is higher and higher, which brings great challenges to the structural design of the antenna.

In order to meet the use requirements of larger bandwidth and covering more frequency bands, technicians often need to use antennas with complicated structural designs. However, it is difficult to miniaturize these antennas with complicated structure design, and it is difficult to apply them to small products such as unmanned aerial vehicles and remote controllers sensitive to size and structure.

[ summary of the invention ]

The embodiment of the utility model provides an aim at providing an antenna, wireless signal processing equipment and unmanned aerial vehicle, can solve the contradiction between current complicated antenna structure and the antenna size miniaturization.

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 having a planar substrate surface;

the first radiation part and the second radiation part are arranged on the surface of the substrate, are symmetrical along the axis of the substrate and correspond to different frequency bands;

a feed line connected to the first radiation section and the second radiation section, respectively;

the pad body is arranged between the feeder line and the surface of the substrate so as to keep the distance between the feeder line and the surface of the substrate.

Optionally, the pad body is made of a non-conductive material comprising: foam, plastic and wood.

Optionally, the cushion body is a foam layer with a preset thickness, a wood frame or a plastic frame.

Optionally, the fixing manner of fixing the feed line and the pad body on the substrate includes: and (4) bundling and fixing or pasting and fixing.

Optionally, the first radiation portion includes:

the first oscillator is symmetrical along the axis of the substrate and is provided with a plurality of bends to form two first openings with the same orientation and a second opening with the opposite orientation to the first opening;

a second vibrator provided along an extending direction of the first opening, the second vibrator including:

the vibration body is connected with the feeder line; the vibrator is communicated with the first vibrator;

bending parts respectively arranged at two tail ends of the vibration body; and

a pair of vibrating arms formed by extending a predetermined length from the bent portion.

Optionally, the antenna further comprises: a pair of clearance grooves; the clearance grooves are symmetrically arranged along the axis of the substrate and are positioned in the first oscillator.

Optionally, the clearance groove is disposed between two sections of longitudinal microstrip lines forming the first opening;

the first oscillator is composed of a plurality of sections of longitudinal microstrip lines extending along the axis direction of the substrate and a plurality of sections of transverse microstrip lines extending along the radial direction of the substrate.

Optionally, the second radiation portion includes:

the third oscillator is positioned at the head part of the surface of the substrate, and the head part of the surface of the substrate is one end away from the extension direction of the feeder line;

and the fourth oscillator is connected between the third oscillator and the feeder line.

Optionally, the third element includes:

a vibrator head having a second width, the vibrator head being located at the head of the substrate surface;

and the vibrator connecting part is positioned between the vibrator head part and the fourth vibrator, the fourth vibrator has a first width smaller than the second width, and the vibrator connecting part has a transition structure which is reduced from the second width to the first width.

Optionally, the first radiation part corresponds to a first frequency band, and the second radiation part corresponds to a second frequency band with a frequency higher than the first frequency band;

the total length of the first and second elements is between 1/8 and 3/4 of the resonant wavelength of the first frequency band;

the total length of the third element and the fourth element is between 1/8 and 3/4 of the resonance wavelength of the second frequency band.

Optionally, the first frequency band is a 900MHz frequency band, and the second frequency band is a 2.4GHz frequency band.

Optionally, the feeder is a coaxial line; the inner conductor of the coaxial line is connected with the fourth vibrator, and the outer conductor of the coaxial line is connected with the second vibrator.

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 connected with the antenna through a feeder line and is used for loading 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 flight power for the unmanned aerial vehicle; an antenna as described above, mounted within the landing gear.

The utility model discloses the antenna adopts reasonable wiring and structural design, can realize multiband antenna's user demand on the less base plate of volume. Moreover, the pad structure can increase the distance between the feeder line and the substrate, and avoids the interference of the feeder line on the resonance wave when transmitting signals.

[ description of the drawings ]

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to 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 side view of an antenna provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first radiation portion according to an embodiment of the present invention;

fig. 4 is a schematic diagram of S parameters of an antenna provided in an embodiment of the present invention;

fig. 5 is a low-frequency directional diagram of the antenna in the horizontal direction (H direction) according to an embodiment of the present invention;

fig. 6 is a high-band directional diagram of the antenna in the horizontal direction (H direction) according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a wireless signal processing apparatus according to an embodiment of the present invention;

fig. 8 is a schematic diagram of an antenna structure according to an embodiment of the present invention;

fig. 9 is the embodiment of the utility model provides an unmanned aerial vehicle's schematic diagram.

[ detailed description ] embodiments

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 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 parts (21, 22) arranged on a surface of the substrate and composed of an oscillator having a specific structural shape, a feeder line 30 connected to the oscillator for transmitting a signal, and a pad 40 having a predetermined size.

The substrate 10 may be made of any type of material (e.g., plastic, foam), and has a non-conductive structure with a specific shape (e.g., a long rectangle, a trapezoid). It has a relatively flat shape, forming a flat surface. In the present embodiment, for convenience of description, the substrate end of the substrate 10 along the extending direction of the feed line 30 near the connection device is referred to as "root portion", and the other end opposite to the substrate root portion is referred to as "head portion".

The "radiating parts" (21, 22) are resonance units for receiving or transmitting radio signals of a specific frequency band, and are the core of the entire antenna system. Which may generally consist of one or more identical or different elements having a particular shape or configuration. The transducers may be conductors of any suitable size and shape that are attached to the surface of the substrate 10 in any suitable manner, such as by being in the form of a patch. The wireless signal receiving and transmitting device can receive or transmit wireless signals belonging to a specific frequency band through the electromagnetic induction principle. In this embodiment, the antenna may be provided with 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 dual-band signals.

The first radiation portion 21 may correspond to a low frequency signal, and the second radiation portion 22 corresponds to a high 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 lower 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 900MHz frequency band, and the second radiation portion 22 corresponds to a 2.4GHz frequency band having a higher frequency.

The feeder line 30 is a signal transmission path connecting the "radiating section" and 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".

The position where the connection with the radiation part is established is usually located near the middle of the surface of the substrate, and the feed line 30 needs to extend from the connection point C located at the middle of the substrate to a certain length in the direction of the root of the substrate until leaving the substrate to connect with other signal processing systems. In other words, as shown in fig. 1, a portion of the feed line 30 may pass or run on the substrate surface.

The pad 40 is a filling structure disposed between the feed line 30 and the substrate surface. Which has a predetermined size, pads under the feed lines 30 to keep the feed lines 30 at a sufficient distance from the substrate surface. In the present embodiment, "size" refers to a combination of parameters (such as thickness, width or length) related to the shape of the pad body for characterizing the external contour of the filling structure, and the specific included parameters can be determined according to the actual shape of the pad body 40 or the distance to be reached between the feed line 30 and the substrate surface (such as the distance between the feed line 30 and the substrate surface in the vertical direction).

The predetermined dimension is an empirical value and can be determined by one skilled in the art according to the actual situation, and it is only necessary to keep the feed line 30 at a sufficient distance from the substrate surface.

Specifically, the pad 40 may be made using any suitable type of non-conductive material, including but not limited to foam, plastic, and wood. As described above, the corresponding structure can be adopted in particular in consideration of different manufacturing materials used for the cushion body 40. For example, when foam is used, the pad 40 may be a foam layer having a certain thickness, and when wood or plastic is used, a wood frame or a plastic frame having a shape and structure adapted to the feeder 30 may be selected as the pad 40.

In order to avoid relative movement between the feed lines (31, 32) and the substrate 10 and the pad 40 during the daily use of the antenna, any suitable type of fixing means (such as adhesive fixing or binding fixing) may be adopted to fix the feed lines (31, 32) on the pad 40, so as to keep the substrate 10, the pad 40 and the feed lines 30 integrally fixed.

In some embodiments, as shown in FIG. 2, the feedlines 30 may be secured to the pad 40 and the substrate 10 by a tie 60 or similar bundling securement. The tie 60 passes through the hole or clearance slot formed on the substrate 10 to tie up and fix the feeder 30, so as to keep the feeder 30 and the substrate 10 integrally fixed and not to move relatively. Specifically, an appropriate number of ties 60 may be provided depending on the distance or length traveled by the feed line 30 on the substrate 10.

Of course, any other suitable fixing method may be selected according to the actual requirement, such as an adhesive fixing method, and the feeder 30 may be fixed on the pad 40 and the substrate 10 by glue or tape.

The feeder line 30 running on the substrate surface is fixed on the pad 40, and keeps a sufficient vertical distance with the substrate surface, so as to reduce the interference of the signal transmitted by the feeder line 30 to the radiation part on the substrate surface.

The perpendicular distance between the feed line 30 and the substrate surface is an empirical value, and only needs to be able to meet the use requirement. The skilled person can determine the minimum standard or suitable standard to be satisfied by the vertical distance between the feed line 30 and the substrate surface in advance according to the needs of the actual situation (such as performance index, experimental result), and then choose to use a pad body with a corresponding size.

The embodiment of the utility model provides an antenna structure, through set up the filling structure that has reasonable size between feeder 30 and substrate surface, thereby bed hedgehopping feeder 30 ensures that feeder 30 and the substrate surface of walking on the base plate keep certain distance, can play the effect that reduces feeder 30 to influence or interference that resonance wave (such as the high frequency signal or the low frequency signal that the aforesaid radiation portion corresponds) caused at the transmission signal in-process, is favorable to improving the wholeness ability of antenna.

With continuing reference to fig. 1, in the implementation of the present application, it is surprisingly found that the first radiation portion 21 and the second radiation portion 22 with unique layout or structure can satisfy the requirements of two frequency bands, i.e. low frequency (e.g. 900 MHz) and high frequency (2.4 GHz) while keeping the antenna compact.

In some embodiments, the first radiating portion 21 may include a first element 211 and a second element 212. The first vibrator 211 and the second vibrator 212 are both symmetrical in shape and are symmetrically arranged along the axis a of the substrate. First transducer 211 is located closer to the head of the substrate than second transducer 212. And the second vibrator 212 is located near the base of the substrate. I.e. the first element 211 is located before the second element 212.

As shown in fig. 3, the first vibrator 211 is bent multiple times to form a structure similar to a "W". Specifically, the W-shaped structure may be formed by combining 3U-shaped structures, in which the first openings S1 of two U-shapes are oriented in the same direction toward the base of the substrate. And the other U-shaped second opening S2 is positioned between the two first openings S1, which is oriented opposite to the first opening S1 toward the head of the substrate. Of course, the first vibrator 211 may be finely adjusted in accordance with the W-shaped configuration, for example, the tilt angle, the length of the vibrator, and the like.

Specifically, the first oscillator 211 may be composed of four longitudinal microstrip lines 211a and three transverse microstrip lines 211 b. The "longitudinal microstrip line" refers to a microstrip line extending for a certain length mainly in the direction of the axis a of the substrate, but does not necessarily have to extend in the direction of the axis a, and may have a certain inclination angle, and only needs to have a longer projection length in the direction of the axis a of the substrate. And "transverse microstrip line" refers to a microstrip line extending for a certain length in the radial direction of the substrate (i.e., the direction perpendicular to the axis a). Similarly, the transverse microstrip line is only used to indicate that the projection length of the microstrip line in the radial direction is much longer than that in the axial direction, and is not used to define the specific extending direction of the microstrip line.

Three pieces of transverse microstrip lines 211b are respectively arranged at different ends of the longitudinal microstrip line 211a in a staggered manner, thereby constituting the first opening S1 and the second opening S2 described above. The first opening S1 faces the base of the substrate, and the second opening S2 faces the head of the substrate, opposite to the first opening.

Referring to fig. 3, the second vibrator 212 can be roughly divided into three parts, i.e., a vibrator body 212a, a bent part 212b and a vibrating arm 212 c. The bent portions 212b are respectively located at both ends of the resonator body 212a and extend outward at a certain angle, thereby forming a structural form similar to a U-shape.

In addition, the vibrator body 212a communicates with the first vibrator 211 and serves as a specific connection portion where the first radiation portion is connected to the feed line. The vibrator body 212a may specifically take any suitable form to achieve communication with the vibrator 211. For example, the oscillator 212a may be one of the transverse microstrip lines constituting the first oscillator 211 or a part thereof.

In a preferred embodiment, as shown in fig. 1, a pair of clearance grooves 50 may be further added to the substrate 10. Similar to the first radiating portion, the clearance grooves 50 are also symmetrically arranged along the axis a of the substrate, and are located in the area where the first oscillator 211 is located. That is, is opened in the first vibrator 211.

The additional open clearance groove 50 can improve the coverage of the first oscillator 211 to low-frequency signals.

Specifically, the clearance groove 50 may be formed in a region between two longitudinal microstrip lines 221a forming the first opening S1, and the capacitance structure of the two longitudinal microstrip lines 221a is adjusted, so as to effectively improve the coverage of the antenna on low-frequency signals.

In other embodiments, with continued reference to fig. 1, the second radiating portion 22 may include a third element 221 and a fourth element 222. Similarly to the first radiation section 21, the third vibrator 221 and the fourth vibrator 222 constituting the second radiation section 22 are each disposed symmetrically along the axis a of the substrate, and the third vibrator 221 is located at the head of the substrate 10 with respect to the fourth vibrator 222, while the fourth vibrator 222 is disposed relatively rearward.

The third transducer 221 may be roughly divided into a transducer head 221a and a transducer connection portion 221b to which the fourth transducer 222 is connected.

The transducer head 221a of the third transducer 221 has a significantly larger wiring width than the fourth transducer 222. The transducer connection portion 221b is a transition structure connected between the transducer head portion 221a and the fourth transducer 222, and gradually transitions from the transducer head portion 221a to the fourth transducer 222 having a smaller width.

The fourth element 222 is a connection portion between the third element 221 and the feed line 30, and it communicates the third element 221 and the feed line 30, thereby constituting the second radiation section 22.

Specifically, the fourth vibrator 222 may be a microstrip line having a narrow first width, and the vibrator connecting portion 221b may have a structure similar to a trapezoid, which is gradually narrowed from the second width of the vibrator head portion 221a to the first width of the fourth vibrator 222. Thus, the third element 221 and the fourth element 222 are made to constitute a similar structure to "! "(exclamation mark) type of structure.

The second radiation portion 22 provided in this embodiment has a larger wiring width, so that signal attenuation formed during signal transmission can be effectively improved, and the performance of the antenna can be improved.

It should be noted that the antenna shown in fig. 1 is only used for exemplary 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 is not limited to the one shown in fig. 1. The technical features involved in the embodiment of the antenna shown in fig. 1 may be combined with each other as long as they do not conflict with each other and may be applied independently in different embodiments as long as they do not rely on each other.

Those skilled in the art will appreciate that the length of the element, or the effective length of the element arm, is an important dimension parameter in the antenna, and is closely related to the frequency band of wireless signal reception or transmission. Based on the difference of the signal frequency bands corresponding to different radiation parts, the size and length of the oscillator need to be controlled to ensure that the use requirement of the antenna is met.

Specifically, the length of the first radiating portion (i.e., the sum of the lengths of the two longitudinal microstrip lines located above the substrate axis a, the resonator of the second oscillator, and the bent portion and the extended portion of the second oscillator located above the substrate axis a) composed of the W-shaped first oscillator 211 and the U-shaped second oscillator 212 needs to be controlled between 1/8 and 3/4 of the resonance wavelength of the first band. And use "! The size length of the second radiating section in the shape of the "letter" structure (i.e., the sum of the lengths of the third element 221 and the fourth element 222) needs to be controlled between 1/8 and 3/4 of the resonance wavelength of the second frequency band.

Wherein the first frequency band is a lower frequency band relative to the second frequency band. That is, the length of the first radiation portion 21 needs to be controlled between 1/8 and 3/4 of the low frequency resonance wavelength. The length of the second radiation part 22 is maintained between 1/8 and 3/4 of the high frequency resonance wavelength.

The embodiment of the utility model provides a can work at the specific example of the dual-frenquency antenna of two frequency channels of 900MHz and 2.4 GHz.

As shown in fig. 1, the dual band antenna includes: the resonator comprises a substrate 10, a first oscillator 211, a second oscillator 212, a third oscillator 221, a fourth oscillator 222, a feeder line 30, a pad 40 and a clearance groove 50.

The substrate 10 is substantially trapezoidal in shape. The narrower top side of the trapezoid is the head of the base plate 10, and the wider bottom side of the trapezoid is the root of the base plate 10.

The feed line 30 is implemented by a coaxial line, which starts from a connection point located at a middle position of the substrate 10, travels a distance on the substrate 10 until leaving the substrate 10 from a root of the substrate 10, and extends outward to other external devices or circuits connected to the antenna.

The pad body 40 is made of 0.5mm foam, and is interposed between the feeder line 30 and the substrate 10. The feeder 30 is fixed to the pad 40 by a tape 60 and is fixed to the substrate 10. The pad 40 raises the feed line 30, so that the feed line 30 maintains a distance from the substrate 10, and interference of the feed line in signal transmission can be effectively avoided.

The first vibrator 211, the second vibrator 212, the third vibrator 221, and the fourth vibrator 222 are conductors (such as microstrip lines) arranged on the surface of the substrate and having a specific shape, length, and width, and a portion of the conductors is exposed to receive or transmit a wireless signal of a specific frequency band.

The first vibrator 211 may have a W-shaped vibrator shape formed by bending a plurality of times, and the second vibrator 212 may have a U-shaped vibrator shape. The first transducer 211 overlaps (shares) a part of the second transducer 212, and the overlapping part is connected to the outer conductor of the coaxial line (feed line 30).

The size length of the oscillator part of which the first radiation part is located on the axial line side of the substrate is 1/8 to 3/4 of the low frequency (900 MHz) resonance wavelength.

The paired clearance grooves 50 are symmetrical along the axis of the substrate, and are arranged between two longitudinal microstrip lines of the first oscillator 211, so as to improve the capacitance structure of the first oscillator 211 and improve the coverage rate of low-frequency signals.

The third element 221 has a large wiring width at the head, gradually narrows at the transition portion, and forms an "!" -shaped element shape with the narrow fourth element 222, and constitutes a second radiation portion corresponding to a high-frequency signal. The fourth element 222 is connected to the inner conductor of the coaxial line (feed line 30).

The third element 221 and the fourth element 222 have a dimension length of 1/8 to 3/4 of a high frequency (2.4 GHz) resonance wavelength. The attenuation at the time of transmission of a high-frequency signal can be effectively reduced by providing the third element 221 with a wider wiring.

Fig. 4 is a schematic diagram of S parameters of an antenna according to an embodiment of the present invention. As shown in FIG. 4, the antenna provided by the above embodiment can operate at 890 MHz-940 MHz (low band) and 2.26 GHz-2.56 GHz (high band). Thus, coverage for both the 900MHz and 2.4GHz bands may be achieved.

Fig. 5 and fig. 6 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. 5 and fig. 6, the antenna provided by the embodiment of the present invention has good directivity in both low frequency band and high frequency band, good omni-directionality, and no defect in a specific direction.

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. 7 is a schematic structural diagram of a wireless signal processing apparatus according to an embodiment of the present invention. As shown in fig. 7, 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 be specifically the antenna described in one or more of the above embodiments, and 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 be embodied in any type of electronic system, such as a radio frequency chip, formed by a combination of one or more electronic components, which may 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 application scene of the antenna that provides of above embodiment is provided. Fig. 8 is an application scene schematic diagram of the antenna provided by the embodiment of the present invention. As shown in fig. 8, the application scenario may include: a body structure 400, an antenna housing 410, and an antenna as described in the above embodiments.

The main body structure 400 is a structure for providing a mounting position for the antenna housing 400. The body structure 400 may be part of the housing of any type of device, depending on the particular application scenario of the antenna. For example, the body structure 400 may be part of the fuselage shell of a drone.

The antenna housing 410 is a casing that is wrapped around the antenna to protect the antenna. The antenna housing 200 may be made of any suitable type of non-conductive material and may have a particular shape to meet the application requirements. For example, the landing gear may be provided in a curved shape as shown in fig. 8, and may be used as a landing gear of an unmanned aerial vehicle.

The antenna in the above embodiment is wrapped in the antenna housing 410 (not shown in the figure), and the substrate 10 may have or form a shape adapted to the antenna housing 410. Which realizes signal transmission between the radiating part and the receiving path/transmitting path through the feeder line.

With the development of drone technology, it is always desirable to be able to reduce the fuselage volume of a drone as much as possible so that the drone can be adapted to perform flight tasks in more scenarios. However, in the case of the reduced size of the unmanned aerial vehicle body, higher requirements are placed on the size and the structure of the antenna, and the antenna is expected to be realized in a limited volume and a structure which is as simple as possible.

Therefore, use the embodiment of the utility model provides an antenna structure, the demand that satisfies the unmanned aerial vehicle that has less fuselage that can be fine about antenna volume and structure. As shown in fig. 9, the drone may include: a body 400, motors (510, 520), and an antenna.

The main body structure of the drone is the fuselage 400, which can be made of any suitable material and has a structure and size suitable for use (e.g., a fixed wing drone shown in fig. 9). A number of different features, such as landing gear 410, propeller 420, camera 430, etc., may be provided on fuselage 400. Of course, one skilled in the art may also 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.

Motors (510, 520) are mounted to the fuselage 400 for providing flight power to the drone. The motors may be provided with one or more motors, which are disposed at corresponding positions of the body 400 (e.g., the body motor 510 and the wing tip motor 520) to perform different functions (e.g., driving the propeller 420 to rotate, controlling the attitude of the body, etc.).

The antenna may be installed in the landing gear 410 (for example, in the nose landing gear shown in fig. 9 and designated by reference numeral 410) and used as one part of the wireless signal transceiver to receive a remote control operation command from the remote controller or feed back related data information (such as a captured image and an operation state parameter of the unmanned aerial vehicle) to the remote controller or another intelligent terminal.

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. 9.

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 having a planar substrate surface;

2. The antenna of claim 1, wherein the pad is a foam layer, a wood frame, or a plastic frame having a predetermined thickness.

3. The antenna of claim 1, wherein the fixing of the feed line and the pad to the substrate comprises: and (4) bundling and fixing or pasting and fixing.

4. An antenna according to any of claims 1-3, wherein the first radiating portion comprises:

bending parts respectively arranged at two tail ends of the vibration body; and

5. The antenna of claim 4, further comprising: a pair of clearance grooves; the clearance grooves are symmetrically arranged along the axis of the substrate and are positioned in the first oscillator.

6. The antenna of claim 5, wherein the keep-away slot is disposed between two sections of longitudinal microstrip lines forming the first opening;

7. The antenna according to claim 4, wherein the second radiation section includes:

8. The antenna of claim 7, wherein the third element comprises:

9. The antenna of claim 7, wherein the first radiating portion corresponds to a first frequency band, and the second radiating portion corresponds to a second frequency band having a higher frequency than the first frequency band;

10. The antenna of claim 7, wherein the feed line is a coaxial line; the inner conductor of the coaxial line is connected with the fourth vibrator, and the outer conductor of the coaxial line is connected with the second vibrator.

11. A wireless signal processing device, comprising:

an antenna as claimed in any one of claims 1 to 10, for transmitting or receiving wireless signals;

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

12. An unmanned aerial vehicle, comprising:

a fuselage having a landing gear thereon;

the motor is arranged on the unmanned aerial vehicle body and used for providing flight power for the unmanned aerial vehicle;

an antenna according to any of claims 1 to 10, mounted within the landing gear.