CN215220986U - Antenna, wireless signal processing equipment and unmanned aerial vehicle - Google Patents

Abstract

The embodiment of the utility model provides an antenna technical field especially relates to an antenna, radio signal processing equipment and unmanned aerial vehicle. The antenna includes: a substrate having a planar first surface; a first radiation part disposed on a first surface of the substrate, the first radiation part including: the second oscillator is positioned behind the first oscillator; a second radiation part disposed on the first surface of the substrate, the second radiation part including: a third vibrator; the third oscillator and the second oscillator are arranged close to each other and have close frequency and oscillator arm effective length so as to enable the third oscillator and the second oscillator to be coupled with each other. The antenna adopts reasonable wiring and structural design, can be realized on a base material with smaller volume, and meets the use requirement of the multi-band antenna. Moreover, the radiation parts corresponding to the middle frequency band and the low frequency band are mutually coupled, so that middle and low frequency signals can be effectively enhanced.

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 society, the frequency bands used in wireless transmission are more and more, and the demand for multiband antennas is more and more.

Under the condition that the frequencies of a plurality of antenna frequency bands are relatively close, the antenna with a complex structural design is often needed to meet the use requirement. However, these antennas with complex structural designs are difficult to be applied to small products such as drones 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 complicated defect of current multifrequency antenna structure.

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 first surface;

a first radiation part disposed on a first surface of the substrate, the first radiation part including: a first vibrator and a second vibrator facing opposite directions;

a second radiation part disposed on the first surface of the substrate, the second radiation part including: a third vibrator; the third oscillator and the second oscillator are arranged close to each other and have close frequency and oscillator arm effective length so as to enable the third oscillator and the second oscillator to be coupled with each other;

and the first oscillator, the second oscillator and the third oscillator are connected to form a grounding point and a feeder line of a feed point.

Optionally, the first vibrator and the second vibrator each have a first vibrator shape; the first oscillator shape includes an oscillator body provided with bent portions at both ends and a pair of oscillator arms formed by extending predetermined lengths from the bent portions.

Optionally, the first oscillator, the second oscillator, and the third oscillator are all distributed in axial symmetry.

Optionally, the effective length ratio of the oscillator arms of the first oscillator and the second oscillator is within a preset first numerical range; the first numerical range is a numerical range formed by floating preset numerical values up and down on the basis of 5.

Optionally, the second oscillator is a front oscillator with an opening facing a direction opposite to an extension direction of the feed line, and the first oscillator is a rear oscillator with an opening facing a direction same as the extension direction of the feed line.

Optionally, the second radiation portion further includes: a microstrip line; the third oscillator is in a first oscillator shape, the microstrip line is a linear conductor and is arranged on a symmetry axis of the third oscillator to form a second oscillator shape together with the third oscillator.

Optionally, the length ratio of the microstrip line to the third oscillator is within a preset second numerical range; the second numerical range is a numerical range formed by floating preset numerical values up and down on the basis of 4.

Optionally, the total length of the vibrator body and the vibrating arm of the first vibrator is between 1/8 and 3/4 of the low-frequency resonance wavelength; the total length of the vibrator body and the vibrating arm of the third vibrator is between 1/8 and 3/4 of the medium-frequency resonance wavelength.

Optionally, the antenna further comprises: the third radiation parts are symmetrically distributed on the first surface and the second surface; the second surface is opposite the first surface; the third radiation portion includes: a fourth vibrator, a fifth vibrator, a sixth vibrator and a seventh vibrator;

the fourth oscillator and the fifth oscillator which face opposite directions are symmetrically arranged on the first surface; the sixth oscillator and the seventh oscillator which face opposite directions are symmetrically arranged on the second surface.

Optionally, the fourth oscillator, the fifth oscillator, the sixth oscillator, and the seventh oscillator are all in a first oscillator shape; the first oscillator shape includes an oscillator body provided with bent portions at both ends and a pair of oscillator arms formed by extending predetermined lengths from the bent portions.

Optionally, the antenna further comprises: a pair of clearance grooves formed in the substrate; and the pair of clearance grooves are symmetrically arranged and are positioned between the vibration arms of the fourth vibrator.

Optionally, the total length of the vibrator body and the vibrating arm of the fourth vibrator is between 1/8 and 3/4 of the high-frequency resonance wavelength.

Optionally, the fifth vibrator and the seventh vibrator are front vibrators with openings facing in a direction opposite to the extension direction of the feeder line, and the fourth vibrator and the sixth vibrator are rear vibrators with openings facing in the same direction as the extension direction of the feeder line.

Optionally, the feed lines comprise a first feed line disposed at the first surface and a second feed line disposed at the second surface; and the second feeder line is provided with 3 grounding points.

Optionally, the first feed line and the second feed line are coaxial lines; the front vibrator is connected with the inner conductor of the coaxial line, and the rear vibrator is connected with the outer conductor of the coaxial line to form 1 feeding point and 3 grounding points.

Optionally, a frequency band corresponding to the first radiation portion is 978MHz, a frequency band corresponding to the second radiation portion is 1.09GHz, and a frequency band corresponding to the third radiation portion is 5.8 GHz.

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; the receiving path is used for analyzing the wireless signals received by the antenna so as to acquire information content contained in the 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.

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: the airplane body is provided with a foot rest and a propeller; the motor is arranged at the joint of the unmanned aerial vehicle body and the foot rest and used for providing flight power for the unmanned aerial vehicle; the antenna as described above is mounted on the stand.

The utility model discloses the antenna adopts reasonable wiring and structural design, can realize on the less substrate of volume, satisfies the user demand of multifrequency section antenna. Moreover, the radiation parts corresponding to the middle frequency band and the low frequency band are mutually coupled, so that middle and low frequency signals can be effectively enhanced.

[ 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 diagram of a first surface of an antenna according to an embodiment of the present invention;

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

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

fig. 4 is a schematic diagram of a medium-low frequency S parameter of an antenna provided in an embodiment of the present invention;

fig. 5 is a schematic diagram of a high-frequency S parameter of an antenna provided in an embodiment of the present invention;

fig. 6 is a directional diagram of an antenna provided in an embodiment of the present invention at a low frequency band;

fig. 7 is a directional diagram of an antenna in a middle frequency band according to an embodiment of the present invention;

fig. 8 is a directional diagram of an antenna provided in an embodiment of the present invention in a high frequency band;

fig. 9 is a schematic diagram of a wireless signal processing apparatus according to an embodiment of the present invention;

fig. 10 is the utility model provides an antenna uses the schematic diagram in unmanned aerial vehicle application scene.

[ 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 front structural diagram of an antenna according to an embodiment of the present invention. Fig. 2 is a schematic diagram of a reverse structure of an antenna according to an embodiment of the present invention. In the present embodiment, for convenience of description, the front surface of the antenna is referred to as "first surface a", while the back surface thereof is referred to as "second surface B". The "first" and "second" are used only to distinguish the front and back sides of the substrate 10, and are not used to define the surface.

As shown in fig. 1 and 2, the antenna mainly includes a substrate 10 as a base of an antenna structure, radiating portions (21,22,23) composed of elements having a specific structural shape and arranged on a first surface a and a second surface B of the substrate, and feeding lines (31,32) connected to the elements to form a feeding point and a grounding point.

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). It has a relatively flat shape, forming a planar first surface and a second surface.

The "radiating portion" refers to a resonance unit for receiving or transmitting a radio signal of a specific frequency band, and is 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 a specific length fixed to the surface of the substrate 10 in any suitable form (e.g., a patch). The electromagnetic induction type wireless signal receiver realizes the receiving or transmitting of wireless signals belonging to a specific frequency band through the principle of electromagnetic induction. In the present embodiment, the antenna may be provided with a total of three radiation portions of the first radiation portion 21, the second radiation portion 22, and the third radiation portion 23.

Each radiation part corresponds to a radio signal of a different frequency band. The first radiation portion 21 may correspond to a low frequency signal, the second radiation portion 22 corresponds to an intermediate frequency signal, and the third radiation portion 23 may correspond to a high frequency signal (e.g., 5G full band).

In some embodiments, as shown in fig. 1, the first radiating portion 21 includes a first element 211 and a second element 212, and the second radiating portion 22 includes a third element 221.

The first vibrator 211 and the second vibrator 212 have opposite openings, and are referred to as a "rear vibrator" and a "front vibrator" in the present embodiment, respectively.

Specifically, the opening of the first vibrator 211 is oriented in the same direction as the extension direction of the feed line 31, and the opening of the second vibrator 212 is oriented in the opposite direction to the extension direction of the feed line 31. As shown in fig. 1, the second element 212 is located farther from the antenna root (i.e., the extending direction of the feed line) with respect to the first element 211, and belongs to the front region of the antenna. Thus, the first vibrator 211 may be referred to as a "rear vibrator", and the second vibrator 212 may be referred to as a "front vibrator".

The third vibrator 221 is disposed close to the second vibrator 212, and has a position close to each other. "close to each other" means that the spacing between the second element 212 and the third element 221 on the substrate is less than a certain threshold or the spacing of both elements is within a small range of values. The interval between the two can be set and adjusted according to the needs of actual conditions.

The third element 221 and the second element 211 have a close frequency and an effective length of the oscillator arm. "close" is similar to "close to" as described above, and also means that the difference between the two is less than a certain threshold value or within a small range of values.

In the present embodiment, the second vibrator 212 and the third vibrator 221 are positioned close to each other, and the object of having a close frequency and effective length of the vibrator arm is to couple the second vibrator and the third vibrator to each other.

Therefore, one skilled in the art can adjust one or more of the proximity of the second oscillator 212 and the third oscillator 221, the proximity of the frequency, and the effective length of the oscillator arm according to the actual requirement, so that the second oscillator 212 and the third oscillator 221 are coupled to each other. All adjustments, changes or substitutions made to the present application for realizing the mutual coupling of the second element 212 and the third element 221 belong to the protection scope of the present application.

The embodiment of the utility model provides an antenna structure, through the intercoupling of second oscillator and third oscillator, can effectual reinforcing satisfy intermediate frequency signal and low frequency signal's demand to the cover of intermediate frequency and low frequency signal, especially under the comparatively close condition of intermediate frequency signal and low frequency signal frequency channel between them.

In some embodiments, as shown in fig. 1, the first oscillator 211, the second oscillator 212, and the third oscillator 221 may be distributed in an axisymmetric manner. The term "axisymmetric distribution" means a distribution that is symmetric along the central axis of the substrate 10. In other words, each of the first element 211, the second element 212, and the third element 221 has a left-right symmetric shape to ensure signal coverage for a specific frequency band.

Specifically, both the first vibrator 211 and the second vibrator 212 may have a "first vibrator shape". To fully explain the "first transducer shape", the following description will be made in detail by taking the first transducer shown in fig. 3 as an example:

as shown in fig. 3, the "first resonator shape" can be roughly considered to be composed of a resonator body 211a and a pair of resonator arms 211 b. The two ends of the resonator body 211a are bent portions 211c having a certain bending angle (e.g., an angle of 90 ° or more). The resonating arm 211b is formed by extending a predetermined length in a straight line or in another form (e.g., serpentine form) from a bent portion 211c, thereby forming a resonator shape similar to a "U".

The predetermined length is determined according to the signal requirement of the radiating part or the antenna, and can be set by a technician according to the actual situation.

In other embodiments, the second radiation portion 22 may further include a microstrip line 222. The microstrip line 222 is combined with the third oscillator 221 to form a shape structure different from the first oscillator shape, which is referred to as a "second oscillator shape" in this specification, so as to meet the requirement of the intermediate frequency signal.

As shown in fig. 1, the third vibrator 221 may have a vibrator shape (i.e., a first vibrator shape) similar to that of the second vibrator 212, and they are close to each other and have the same opening orientation. And the microstrip line 222 is in a linear shape and disposed on the symmetry axis of the third vibrator 221 (i.e., on the central axis of the substrate 10), thereby forming a second vibrator shape similar to a "mountain" shape, different from the "first vibrator shape", together with the third vibrator 221.

In still other embodiments, the third radiation portions 23 corresponding to the high frequency signal may be symmetrically distributed on the first surface a and the second surface B of the substrate. That is, the third radiation section 23 has exactly the same oscillator structure form on the first surface a and the second surface B.

As shown in fig. 1 and 2, the third radiating section 23 can be roughly divided into four parts, i.e., a fourth element 231, a fifth element 232, a sixth element 233, and a seventh element 234.

The fourth vibrator 231 and the fifth vibrator 232 are both disposed on the first surface a, and are in mirror symmetry with each other, and have opposite opening orientations. Similarly, the sixth transducer 233 and the seventh transducer 234 are disposed on the second surface B, and are in mirror symmetry with opposite opening orientations.

Specifically, the fourth, fifth, sixth, and seventh transducers 231, 232, 233, and 234 may be configured to have the same axisymmetrical distribution as the first, second, and third transducers 211, 212, and 221.

The fourth transducer 231 is located closer to the base of the base than the fifth transducer 232, and the sixth transducer 233 is located closer to the base than the seventh transducer 234 (i.e., the fourth transducer 231 and the sixth transducer 233 extend in the same direction as the feed line). Thus, the fifth transducer 232 and the seventh transducer 234 can be referred to as "front transducers", and the fourth transducer 231 and the sixth transducer 233 can be referred to as "rear transducers".

In some embodiments, the fourth vibrator 231, the fifth vibrator 232, the sixth vibrator 233 and the seventh vibrator 234 can all adopt the "first vibrator shape" described in the above embodiments, i.e. similar to the "U" shaped vibrator shape, so as to meet the use requirement of high frequency signals.

In a preferred embodiment, the substrate 10 may further have a clearance groove 40. The clearance grooves 40 may be formed in pairs in the area where the third radiating portion 23 is located, for example, symmetrically between two vibrating arms of the sixth vibrator 233 (or two vibrating arms of the fourth vibrator 231) of the third radiating portion.

As shown in fig. 2, the additional clearance groove 40 improves the capacitance structure formed between the two vibrating arms 233b of the sixth vibrator 233, and reduces the mutual coupling, thereby reducing the interference of the second vibrator and the third vibrator with respect to the medium and low frequency signals to the high frequency signals.

The feeder lines (31,32) are signal transmission paths connecting the "radiating section" and other signal processing systems. Which generally have good shielding and signal transmission properties to avoid that the radio signals received or transmitted by the "radiating part" are adversely interfered during transmission. It may in particular use any suitable type of wire, such as a coaxial wire.

As shown in fig. 1 and 2, the antenna provided by the present embodiment may be provided with a first feeding line 31 and a second feeding line 32 on the first surface a and the second surface B of the substrate 10, respectively, to provide a suitable number of grounding points and feeding points. For example, the second feed line 32 shown in fig. 2 is grounded three times, and three different grounding points 32a, 32b, and 32c are provided.

In some embodiments, a coaxial line may be used as the feeding line, the first oscillator 211 of the first radiating portion 21 may be used as the front oscillator and may be electrically connected to the inner conductor of the coaxial line, and the second oscillator 212 may be used as the rear oscillator and may be electrically connected to the outer conductor of the coaxial line to form 1 feeding point and 3 grounding points, which well ensures the directionality of the resonance.

Similarly, the fourth element 231 and the sixth element 233 of the third radiating element 23, which serve as front elements, are connected to the inner conductor of the coaxial line, and the fifth element 232 and the seventh element 234 are connected to the outer conductor of the coaxial line, which also form a feeding point and 3 grounding points for ensuring the directivity of resonance.

It should be noted that the antenna shown in fig. 1 and 2 is only used for illustrative purposes, 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 antenna shown in fig. 1 and 2. The technical features involved in the embodiments of the antenna shown in fig. 1 and 2 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.

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.

In some embodiments, the effective length ratio of the oscillator arm between the first oscillator 211 and the second oscillator 212 corresponding to the low frequency signal may be controlled within a preset first value range.

The preset first numerical range is a numerical range formed by floating a preset numerical value up and down on the basis of 5. That is, the ratio of the effective lengths of the oscillator arms of the first oscillator 211 and the second oscillator 212 can be controlled to about 5.

The specific preset value is set or determined by a skilled person according to practical conditions such as experience, experimental results, or debugging results, and may be expressed in any suitable form (for example, in percentage). For example, on a 5 basis, the values may be shifted up or down by 1% (i.e., the predetermined value is 0.05).

Accordingly, in the second radiation section 22 corresponding to the if signal in the form of the "chevron" shaped oscillator (i.e., the second oscillator shape) described above, the length ratio between the third oscillator 221 and the microstrip line 222 can be controlled within a preset second value range.

The second numerical range is a numerical range formed by floating preset numerical values up and down on the basis of 4. That is, the ratio of the lengths of the third oscillator 221 and the microstrip line 222 needs to be controlled to be about 4. Of course, the preset value of the second value range floating up and down and the preset value of the first value range may be different values, and there is no interdependence relationship between the first value range and the second value range.

In other embodiments, based on the difference of the signal frequency bands corresponding to different radiating parts, the size length of the element also needs to be controlled to ensure that the use requirement of the antenna is met.

Specifically, the size length (e.g., the sum of the lengths of the horn and the resonator) of the first transducer 211 in the form of a "U" -shaped transducer needs to be controlled to be between 1/8 and 3/4 of the low-frequency resonance wavelength. The size and length of the fourth element 231, which is also in the shape of a "U" shaped element, needs to be controlled between 1/8 and 3/4 of the high frequency resonance wavelength. And the length of the third element 221 in the shape of a chevron element needs to be controlled between 1/8 and 3/4 of the mid-frequency resonance wavelength.

The embodiment of the utility model provides a can work at the three frequency channel's of 978MHz, 1.09GHz and 5.8GHz concrete example of three antenna.

As shown in fig. 1 and 2, the triple-band antenna includes: the resonator comprises a substrate 10, a first oscillator 211, a second oscillator 212, a third oscillator 221, a microstrip line 222, a fourth oscillator 231, a fifth oscillator 232, a sixth oscillator 233, a seventh oscillator 234, a first feeder 31, a second feeder 32, a feed point 33, three grounding points (32a, 32b, 32c) and a clearance groove 40.

The first vibrator 211 and the second vibrator 212 are both in a U-shaped vibrator shape, and the total length of the first vibrator 211 is 1/8-3/4 of a low-frequency (978MHz) resonance wavelength.

The first oscillator 211 is a rear oscillator and the second oscillator 212 is a front oscillator, which constitute the first radiating section 21. The length of the front vibrator is about one fifth of that of the rear vibrator, the front vibrator is connected with an inner conductor of a coaxial line (a first feeder line 31), and the rear vibrator is connected with an outer conductor of the coaxial line (the first feeder line 31), so that the front vibrator is communicated with the first feeder line 31 and the second feeder line 32 to form a feed point and three grounding points.

The third vibrator 221 and the microstrip line 222 form a chevron-shaped vibrator shape. The third element 221 has a dimension length controlled at 1/8 to 3/4 of a resonance wavelength of an intermediate frequency (1.09GHz), and is connected to an outer conductor of a coaxial line (second feed line 32). In addition, the third vibrator 221 and the second vibrator 212 have close frequency and effective length of vibrator arms, and the third vibrator and the second vibrator are coupled with each other to enhance the coverage of medium and low frequency signals.

The fourth vibrator 231, the fifth vibrator 232, the sixth vibrator 233, and the seventh vibrator 234 are each in the shape of a "U" shaped vibrator, and constitute the third radiating portion 23. The paired clearance grooves 40 are symmetrically provided between the two arm portions of the sixth transducer 233.

The fourth vibrator 231 and the fifth vibrator 232 are mirror-symmetric and are disposed on the first surface a of the substrate 10, the fourth vibrator 231 is a rear vibrator, and the fifth vibrator 232 is a front vibrator. The size length of the fourth element is controlled to 1/8 to 3/4 at the resonance wavelength of high frequency (5.8 GHz). The sixth vibrator 233 and the seventh vibrator 234 are mirror-symmetrical and are disposed on the second surface B of the base material 10, the sixth vibrator 233 being a rear vibrator, and the seventh vibrator 234 being a front vibrator.

The second feed line 32 is three times grounded, having three ground points (32a, 32b, 32 c). The front vibrator is connected to the inner conductor of the coaxial line and the rear vibrator is connected to the outer conductor of the coaxial line, thereby communicating with the second feeder line 32 to form a feed point and three ground points.

Fig. 4 is a schematic diagram of S parameters of the antenna in the middle and low frequency bands according to an embodiment of the present invention. Fig. 5 is a schematic diagram of S parameters of the antenna at a high frequency band according to an embodiment of the present invention.

As shown in fig. 4 and 5, the antenna provided by the above embodiments can operate at 920MHz to 1.12MHz (medium and low frequency band) and 5.6GHz to 6.0GHz (high frequency band). Therefore, the coverage of three frequency bands of 978MHz, 1.09GHz and 5.8GHz can be realized.

Fig. 6 to fig. 8 are antenna patterns of the antenna at a low frequency band, a middle frequency band and a high frequency band provided by the embodiment of the present invention, respectively. As shown in fig. 6 to 8, the embodiment of the present invention provides an antenna having good directivity in three frequency bands of low frequency band, middle frequency band and high frequency band, good omni-directionality, and no defect in 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. 9 is a schematic structural diagram of a wireless signal processing device according to an embodiment of the present invention. As shown in fig. 9, 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 three 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. 10 is the utility model provides an antenna is applied to unmanned aerial vehicle's schematic structure diagram.

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, 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. 10, 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. 10). 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. 10 and designated by reference numeral 410) and used as one part of the wireless signal transceiver to receive a remote control operation command from a remote controller or feed back related data information (such as a captured image and an operation state parameter of the unmanned aerial vehicle itself) 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. 10.

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 (18)

1. An antenna, comprising:

a substrate having a planar first surface;

a first radiation part disposed on a first surface of the substrate, the first radiation part including: a first vibrator and a second vibrator facing opposite directions;

a second radiation part disposed on the first surface of the substrate, the second radiation part including: a third vibrator; the third oscillator and the second oscillator are arranged close to each other and have close frequency and oscillator arm effective length so as to enable the third oscillator and the second oscillator to be coupled with each other;

and the first oscillator, the second oscillator and the third oscillator are respectively connected to form a grounding point and a feeder line of a feed point.

2. The antenna of claim 1, wherein the first element, the second element, and the third element are all distributed in axial symmetry.

3. The antenna of claim 1, wherein the first element and the second element each have a first element shape;

the first oscillator shape includes an oscillator body provided with bent portions at both ends and a pair of oscillator arms formed by extending predetermined lengths from the bent portions.

4. The antenna of claim 1, wherein the effective length ratio of the dipole arms of the first dipole and the second dipole is within a preset first value range;

the first numerical range is a numerical range formed by floating preset numerical values up and down on the basis of 5.

5. The antenna of claim 1, wherein the second element is a front element with an opening facing in a direction opposite to an extension direction of the feed line, and the first element is a rear element with an opening facing in a direction same as the extension direction of the feed line.

6. The antenna of claim 2, wherein the second radiating portion further comprises: a microstrip line;

the third oscillator is in a first oscillator shape, the microstrip line is a linear conductor and is arranged on a symmetry axis of the third oscillator to form a second oscillator shape together with the third oscillator.

7. The antenna of claim 6, wherein the length ratio of the microstrip line to the third element is within a preset second value range; the second numerical range is a numerical range formed by floating preset numerical values up and down on the basis of 4.

8. The antenna of claim 6, wherein the total length of the body and horn of the first element is between 1/8 and 3/4 of the low frequency resonant wavelength; the total length of the vibrator body and the vibrating arm of the third vibrator is between 1/8 and 3/4 of the medium-frequency resonance wavelength.

9. The antenna of claim 1, further comprising: the third radiation parts are symmetrically distributed on the first surface and the second surface; the second surface is opposite the first surface;

the third radiation portion includes: a fourth vibrator, a fifth vibrator, a sixth vibrator and a seventh vibrator;

the fourth oscillator and the fifth oscillator which face opposite directions are symmetrically arranged on the first surface; the sixth oscillator and the seventh oscillator which face opposite directions are symmetrically arranged on the second surface.

10. The antenna of claim 9, wherein the fourth element, the fifth element, the sixth element, and the seventh element are each in the shape of a first element;

the first oscillator shape includes an oscillator body provided with bent portions at both ends and a pair of oscillator arms formed by extending predetermined lengths from the bent portions.

11. The antenna of claim 10, further comprising: a pair of clearance grooves formed in the substrate;

and the pair of clearance grooves are symmetrically arranged and are positioned between the vibration arms of the fourth vibrator.

12. The antenna of claim 10, wherein the total length of the body and the horn of the fourth element is between 1/8 and 3/4 of the high frequency resonant wavelength.

13. The antenna of claim 10, wherein the fifth element and the seventh element are front elements with openings facing in a direction opposite to an extension direction of the feed line, and the fourth element and the sixth element are rear elements with openings facing in a direction same as the extension direction of the feed line.

14. The antenna of claim 10, wherein the feed line comprises a first feed line disposed at the first surface and a second feed line disposed at the second surface;

and the second feeder line is provided with 3 grounding points.

15. The antenna of claim 14, wherein the first feed line and the second feed line are coaxial lines; the second oscillator is connected with the inner conductor of the coaxial line, and the first oscillator is connected with the outer conductor of the coaxial line to form 1 feeding point and 3 grounding points.

16. The antenna according to claim 9, wherein the frequency band corresponding to the first radiation portion is 978MHz, the frequency band corresponding to the second radiation portion is 1.09GHz, and the frequency band corresponding to the third radiation portion is 5.8 GHz.

17. A wireless signal processing device, comprising:

an antenna as claimed in any one of claims 1 to 16, 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.

18. 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 16, mounted on the landing gear.

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