CN116137383A - Antenna structure and terminal equipment - Google Patents

Abstract

The present disclosure relates to an antenna structure and a terminal device, the antenna structure comprising: a dielectric substrate; the radiator is positioned on the dielectric substrate and provided with at least two gaps which are mutually spaced, and the radiator is used for coupling at least two gaps to form vertical polarized waves and horizontal polarized waves when the antenna structure receives and transmits wireless signals of at least two frequency bands; the radiator is of an axisymmetric structure, and at least two gaps comprise the gaps positioned outside the symmetry axis of the radiator. According to the embodiment of the disclosure, only at least two gaps are needed to be arranged in the dual-polarized scenes of each multi-band, the polarization form of the antenna is not limited, the applicable scene of dual polarization of the antenna is enlarged, and the embodiment of the disclosure can be realized only by a traditional microstrip processing technology, so that the requirement on the antenna structure processing technology can be reduced.

Description

Antenna structure and terminal equipment

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to an antenna structure and a terminal device.

Background

With the advent of the fifth generation mobile communication technology (5th generation mobile networks,5G), functions supported by antennas in terminal devices such as mobile phones are becoming more and more abundant, for example, antenna support realizes dual polarization in multiple frequency bands. In some embodiments, the antenna employs symmetric cross-shaped slots and different polarization forms of the two frequency bands to achieve respective dual polarization of the antenna in the two frequency band scenario. However, the dual polarization of the antenna is only applicable to different polarization forms under the two frequency band scenes, and the problem of limited applicable scenes of the antenna exists.

Disclosure of Invention

The present disclosure provides an antenna structure and a terminal device.

In a first aspect of the disclosed embodiments, an antenna structure is provided, including:

a dielectric substrate;

the radiator is positioned on the dielectric substrate and provided with at least two gaps which are mutually spaced, and the radiator is used for coupling at least two gaps to form vertical polarized waves and horizontal polarized waves when the antenna structure receives and transmits wireless signals of at least two frequency bands; the radiator is of an axisymmetric structure, and at least two gaps comprise the gaps positioned outside the symmetry axis of the radiator.

In some embodiments, at least two of the slits comprise: a first slit forming the horizontally polarized wave and a second slit forming the vertically polarized wave;

the first gap is positioned on the symmetry axis of the radiator;

the second gap is positioned outside the symmetry axis of the radiator and is perpendicular to the first gap.

In some embodiments, the setting parameter of the first slot corresponds to tuning of a vertically polarized wave formed by coupling the radiator at the second slot; wherein, the setting parameters of the first gap include: the arrangement dimension of the first gap and/or the arrangement position of the first gap on the radiator.

In some embodiments, the radiator is rectangular in shape, the radiator including a first side and a second side adjacent the first side;

the first gap is parallel to the first side edge and passes through the symmetry center of the radiator;

the second slit is parallel to the second side and is close to the edge of the radiator.

In some embodiments, the shape of the first slit is the same as the shape of the second slit.

In some embodiments, the shape of the first slit and the shape of the second slit are both in a straight shape.

In some embodiments, the frequency band of the antenna structure for receiving and transmitting wireless signals includes: a first frequency band and a second frequency band different from the first frequency band;

the first frequency band is constructed by a resonant mode of the radiator;

the second frequency band is constructed with a higher order mode equivalent to the resonant mode.

In some embodiments, the radiator comprises: a first radiation patch located on a first surface of the dielectric substrate and a second radiation patch located on a second surface of the dielectric substrate, the first surface and the second surface being two opposite surfaces of the dielectric substrate;

the shape and size of the first radiating patch are the same as the shape and size of the second radiating element.

In some embodiments, the frequency band of the antenna structure for receiving and transmitting wireless signals includes a first frequency band and a second frequency band, wherein the center frequency of the first frequency band is greater than the center frequency of the second frequency band;

the antenna structure further comprises:

the frequency selection surface unit is positioned on the medium substrate and is arranged at intervals with the radiator, and is used for allowing the wireless signals of the first frequency band to pass through and filtering the wireless signals of the second frequency band.

In a second aspect of the embodiments of the present disclosure, there is provided a terminal device, including:

the antenna structure of one or more of the embodiments described above;

and the printed circuit board is multiplexed into the dielectric substrate of the antenna structure.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

when the antenna structure of the embodiment of the disclosure receives and transmits wireless signals of at least two frequency bands, the radiator is coupled at least two slots to form horizontal polarized waves and vertical polarized waves, and the at least two slots comprise slots positioned outside the symmetry axis of the radiator. Therefore, the embodiment of the disclosure only needs to set at least two gaps in the dual-polarized scenes of each multi-band, and does not need to limit the polarization form of the antenna, and further the embodiment of the disclosure not only can be applicable to different polarization scenes, but also can be applicable to the same polarization scene, and the dual-polarized applicable scene of the antenna is enlarged. In addition, the radiator of the embodiment of the disclosure does not adopt symmetrical coupling, but couples with a gap which is not on the symmetrical axis of the radiator to realize dual polarization performance, so that the mutual influence among a plurality of frequency bands can be reduced, and the receiving and transmitting performance of an antenna structure is improved. Meanwhile, the dual polarization of each multi-band is realized by adding the gap, the dual polarization can be realized only by the traditional microstrip processing technology, the structure of the radiator is not required to be changed, the requirement on the antenna structure processing technology can be reduced, and the antenna structure can be better processed and produced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic diagram of an antenna structure according to an exemplary embodiment.

Fig. 2 is a schematic diagram two of an antenna structure according to an exemplary embodiment.

Fig. 3 is a schematic diagram three of an antenna structure according to an exemplary embodiment.

Fig. 4 is a schematic diagram four of an antenna structure according to an exemplary embodiment.

Fig. 5 is a block diagram of a terminal device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.

Fig. 1 is a schematic diagram of an antenna structure according to an exemplary embodiment. As shown in fig. 1, the antenna structure includes:

a dielectric substrate 101;

the radiator 102 is located on the dielectric substrate 101 and has at least two slots spaced apart from each other, and is configured to couple to form a vertical polarized wave and a horizontal polarized wave at least two slots when the antenna structure transmits and receives wireless signals of at least two frequency bands; wherein the radiator 102 has an axisymmetric structure, and at least two of the slits include slits located outside the symmetry axis of the radiator 102.

In the embodiment of the disclosure, the antenna structure is used for receiving and transmitting wireless signals, and can be applied to wireless communication scenes such as Bluetooth (BT), wireless fidelity (wireless fidelity, wiFi), universal mobile telecommunication system (Universal Mobile Telecommunications System, UMTS), long term evolution (Long Term Evolution, LTE) and the like.

The dielectric substrate is used for bearing the radiator. The dielectric substrate may be formed of dielectric materials including, but not limited to: polytetrafluoroethylene composite material or glass fiber material.

In the embodiment of the disclosure, the thickness of the dielectric substrate is inversely related to the bandwidth of the antenna structure within a preset range. For example, when the thickness of the dielectric substrate is within a preset range, the bandwidth of the antenna structure decreases as the thickness of the dielectric substrate increases.

In the embodiment of the disclosure, when the antenna structure is applied to a terminal device, the dielectric substrate may be a printed circuit board of the terminal device.

The radiator is positioned on the dielectric substrate. In some embodiments, the radiator may be located on the dielectric substrate by different processes. The process comprises the following steps: the patch process or the plating process, embodiments of the present disclosure are not limited.

The radiator can be a carrier for receiving and transmitting wireless signals, can convert electric signals into wireless signals to realize the transmission of the wireless signals, and can also convert the wireless signals into electric signals to realize the reception of the wireless signals.

In the embodiment of the disclosure, the radiator can be used for receiving and transmitting different types of wireless signals. For example, the radiator may transmit and receive a wireless fidelity signal, a global positioning signal, a cellular mobile signal, or a violet peak protocol communication signal corresponding to a violet peak protocol, and embodiments of the present disclosure are not limited.

At least two gaps are arranged on the radiator. The at least two slits may be the same or different in shape and size. For example, the at least two slits include two slits having the same shape and different sizes; alternatively, the two slits may be the same in shape and size. For another example, the at least two slits include three slits that are all the same shape and size.

Wherein the shape of the slit includes, but is not limited to: a letter, an I-letter or an L-letter. In the embodiment of the disclosure, the shape of the slit may be set according to actual requirements. For example, to simplify the design complexity of the antenna circuit, the slot may be configured in a straight shape.

Of course, the size of the gap can also be set according to actual requirements. For example, to improve the transceiving efficiency of the antenna structure, the radiator may be matched with an impedance element to be introduced by the antenna structure by adjusting the size of the slot. For another example, to extend the bandwidth of the transceiving frequency band of the antenna structure, the current distribution may be changed by increasing the length of the in-line slot to increase the effective path of the circuit. For another example, the size of the slot is inversely related to the frequency band of the antenna for receiving and transmitting wireless signals, and the antenna can be configured to be capable of receiving and transmitting wireless signals in a preset frequency band by adjusting the size of the slot.

In the embodiment of the disclosure, when the antenna structure receives and transmits wireless signals of at least two frequency bands, the radiator is coupled at least two slots to form a vertical polarized wave and a horizontal polarized wave. It can be seen that the embodiments of the present disclosure can implement dual polarization of each of at least two frequency bands by coupling the radiator with at least two different slots. It should be noted that, the radiator in the embodiment of the present disclosure may be coupled at one slot to form a vertically polarized wave, and coupled at another slot to form a horizontally polarized wave, so as to achieve dual polarization performance.

In the implementation of dual polarization performance of at least two frequency bands, the disclosed embodiments may implement dual polarization of each of the two frequency bands by coupling the radiator at two slots, may implement dual polarization of each of the two frequency bands by coupling the radiator at three slots, and may implement dual polarization of each of the three frequency bands by coupling the radiator at two slots, which is not limited.

In the process of realizing respective dual polarization of two frequency bands by coupling the radiator with the two slots, the radiator can be respectively coupled with the two slots to form dual polarization of one frequency band in a resonance mode, and respectively coupled with the two slots to form dual polarization of the other frequency band in a high-order mode.

In the process of realizing respective dual polarization of two frequency bands by coupling the radiator with the three slots, the radiator can be coupled with a first slot and a second slot in the three slots to realize dual polarization of one frequency band, and then coupled with the first slot and a third slot in the three slots to realize dual polarization of the other frequency band.

In the dual polarization process of the radiator and the two slots, the A frequency band in the three frequency bands can be the antenna frequency band for receiving and transmitting the antenna in the resonant mode, the B frequency band can be the frequency band for receiving and transmitting the antenna in the high-order mode, and the C frequency band can be the frequency band corresponding to the frequency multiplication of the A frequency band.

The radiator is of an axisymmetric structure and can be symmetric about a symmetry axis, and the symmetry axis of the radiator is a line passing through the center of the radiator.

In the disclosed embodiments, the shape of the radiator includes, but is not limited to, rectangular or circular.

The at least two slits include slits located outside the symmetry axis of the radiator. The radiator is coupled at least two slots to form a vertically polarized wave and a horizontally polarized wave. Therefore, in the process of realizing the dual polarization performance, one of the two slits, i.e., the slit forming the vertically polarized wave and the slit forming the horizontally polarized wave, is not located on the symmetry axis of the radiator. For example, the slits forming the vertically polarized wave are not on the symmetry axis of the radiator, and the slits forming the horizontally polarized wave are on the symmetry axis of the radiator; alternatively, the slits forming the vertical polarized wave are on the symmetry axis of the radiator, and the slits forming the horizontal polarized wave are not on the symmetry axis of the radiator; alternatively, neither the slits forming the vertically polarized wave nor the slits forming the horizontally polarized wave are on the symmetry axis of the radiator, and embodiments of the present disclosure are not limited.

In an embodiment of the present disclosure, the at least two slits comprise slits located outside the symmetry axis of the radiator. It can be seen that the radiator of the embodiments of the present disclosure does not employ symmetrical coupling, but rather couples with a slot that is not on the symmetry axis of the radiator to achieve dual polarization performance. Therefore, when the antenna structure receives and transmits wireless signals of at least two frequency bands, the mutual influence among a plurality of frequency bands can be reduced, and the receiving and transmitting performance of the antenna structure is improved.

As shown in fig. 2, in order to increase a channel of a different frequency band to realize dual-frequency dual-polarization on the basis that the antenna structure realizes single-frequency dual-polarization through the cross slot 201, the antenna structure needs to adopt different polarization modes, so that the mutual influence between two frequency bands when the antenna structure receives and transmits the two frequency bands can be reduced, and the isolation of the antenna structure on the two frequency bands is improved. For example, as shown in fig. 3, in a dual-frequency dual-polarized scenario, a square annular radiator 202 needs to be used to form a linear polarized frequency band and a circular annular radiator 203 needs to be used to form a circular polarized frequency band. However, the dual-band dual-polarized antenna structure shown in fig. 3 can be applied only to different polarization scenes, i.e., only to one linear polarization scene and one circular polarization scene.

In this regard, the embodiments of the present disclosure provide at least two slots on the radiator, so that the radiator can be coupled at the at least two slots to form a horizontal polarized wave and a vertical polarized wave, respectively, to implement respective dual polarization of multiple frequency bands. Therefore, the embodiment of the disclosure only needs to set at least two slots in the dual-polarized scenes of each multi-band, and does not need to limit the polarization form of the antenna, so that the embodiment of the disclosure not only can be applicable to different polarization scenes (for example, a linear polarization frequency band scene and a circular polarization frequency band scene), but also can be applicable to the same polarization scene (for example, two linear polarization frequency band scenes), and the antenna dual-polarization applicable scene is enlarged. In addition, the radiator of the embodiment of the disclosure does not adopt symmetrical coupling, but couples with a gap which is not on the symmetry axis of the radiator to realize dual polarization performance, so that the mutual influence among a plurality of frequency bands can be reduced when the antenna structure receives and transmits wireless signals of at least two frequency bands, and the receiving and transmitting performance of the antenna structure is improved. Meanwhile, the dual polarization of each multi-band is realized by adding the gap, the dual polarization can be realized only by the traditional microstrip processing technology, the structure of the radiator is not required to be changed, the requirement on the antenna structure processing technology can be reduced, and the antenna structure can be better processed and produced.

In some embodiments, as shown in fig. 4, at least two of the slits comprise: a first slit 103 forming the horizontally polarized wave and a second slit 104 forming the vertically polarized wave;

the first slit 103 is located on the symmetry axis of the radiator 102;

the second slit 104 is located outside the symmetry axis of the radiator 102 and is perpendicular to the first slit 103.

In an embodiment of the present disclosure, the symmetry axis of the radiator includes: the first slit may be disposed on the first axis and may be disposed on the second axis, and a second axis perpendicular to the first axis. When the radiator is rectangular, the first axis may be parallel to the long side of the radiator, and the second axis may be parallel to the short side of the radiator.

When the antenna structure transmits and receives a radio signal, the radiator can form a symmetrical horizontal polarized wave by taking the first slot as the symmetry axis, and the horizontal polarization performance can be improved.

The setting position of the first slit on the symmetry axis may be set according to actual requirements, which is not limited in the embodiments of the disclosure. For example, the first slit may be arranged to pass through the centre of symmetry of the radiator, and the first slit may be arranged not to pass through the centre of symmetry of the radiator. For another example, the first slit may be disposed near the center of symmetry of the radiator, and the first slit may also be disposed near the edge of the radiator.

The second gap is perpendicular to the first gap, so that the radiator can form vertical polarized waves at the second gap, the antenna structure can respectively form horizontal polarized waves and vertical polarized waves through the first gap and the second gap, and further the antenna structure is respectively dual polarized under multiple frequency bands.

In the embodiment of the disclosure, on the basis that the first gap is on the symmetry axis of the radiator and the second gap is perpendicular to the first gap, the position of the second gap can be set on the radiator according to actual requirements.

For example, the radiator may be rectangular, and the first slit and the second slit may each be disposed near a long side of the rectangle; alternatively, the first slit may be disposed proximate a first long side of the radiator and the second slit may be disposed proximate a second long side of the radiator, the first long side being parallel to the second long side.

For another example, the radiator may be rectangular, and the first slot may extend in a direction toward the second slot through a center of symmetry of the radiator, and may or may not intersect the second slot.

In the embodiment of the disclosure, the shape of the first slit and the shape of the second slit may be the same shape, and may also be different shapes. For example, the shape of the first slit and the shape of the second slit may both be in a straight or i-shape; alternatively, the first slit is shaped like a straight line, and the second slit is shaped like an i-shape, which is not limited by the embodiments of the present disclosure.

In the embodiment of the disclosure, the size of the first gap and the size of the second gap may be the same or different. For example, the shape of the first slit and the shape of the second slit are both in a straight shape, and the length of the first slit can be greater than that of the second slit; alternatively, the length of the first slit may be equal to the length of the second slit.

In the embodiment of the disclosure, the first gap is arranged on the symmetry axis of the radiator, and the second gap is perpendicular to the second gap, so that the radiator can form symmetrical horizontal polarized waves by taking the first gap as the symmetry axis to improve the horizontal polarization performance of the antenna, and the antenna structure can form vertical polarized waves at the second gap based on the second gap perpendicular to the first gap, so that the dual polarization of each multiband can be realized. Meanwhile, according to the embodiment of the disclosure, the dual polarization of each multi-band can be realized only by adopting the first slot and the second slot, so that the processing technology of the antenna structure can be simplified, and the manufacturing efficiency of the antenna structure can be improved.

In some embodiments, as shown in fig. 4, the shape of the first slit 103 is the same as the shape of the second slit 104.

In the embodiment of the disclosure, the shape of the first slot and the shape of the second slot may be set to be the same, so that not only horizontal polarized waves and vertical polarized waves of the antenna structure on the same frequency band form (linear polarized frequency band or circular polarized frequency band) are realized, but also the antenna design difficulty can be simplified.

Illustratively, the shape of the first slit and the shape of the second slit may each be configured in a straight, T-shape, or i-shape, and embodiments of the present disclosure are not limited.

In some embodiments, as shown in fig. 4, the shape of the first slit 103 and the shape of the second slit 104 are both in a straight line.

In the embodiment of the disclosure, when the shape of the first slot and the shape of the second slot are both in a straight line, single-frequency coupling can be realized through the first slot and the second slot antenna structure, so that the antenna structure is simpler in structure for realizing multi-frequency coupling, the difficulty of a radio frequency circuit and a matching circuit can be simplified, and universality is realized.

In some embodiments, the setting parameter of the first slot corresponds to tuning of a vertically polarized wave formed by coupling the radiator at the second slot; wherein, the setting parameters of the first gap include: the arrangement dimension of the first gap and/or the arrangement position of the first gap on the radiator.

In the embodiment of the disclosure, since the first slot is disposed on the symmetry axis of the radiator, and the second slot is perpendicular to the first slot, the second slot may not be disposed on the symmetry axis of the radiator, that is, the radiator may not adopt the formation coupling of the symmetry slot at the second slot, so that the antenna structure may have the problem of poor cross polarization of the antenna during coupling.

Based on this, in designing the antenna structure, the embodiments of the present disclosure make the setting parameters of the first slot correspond to tuning of the vertical polarized wave formed by coupling the radiator at the second slot. In this way, the embodiment of the disclosure can tune the vertical polarized wave based on the setting parameters of the first slot to change the equivalent impedance of the horizontal polarization, so that the performance of the vertical polarization can be improved.

The setting parameters of the first gap comprise the setting size of the first gap and the setting position of the first gap on the radiator. For example, in actually adjusting the first slit setting parameter, the slit forming the vertical polarization may be tuned by increasing the size of the first slit; alternatively, tuning the slit forming the vertical polarization may be accomplished with the first slit away from or near the center of the radiator, and embodiments of the present disclosure are not limited.

In the embodiment of the disclosure, the setting parameters of the first slot are corresponding to the tuning of the vertical polarized wave formed by coupling the second slot, so that the tuning of the vertical polarization based on the setting parameters of the first slot can be realized, the cross polarization degradation caused by the coupling of the antenna structure in the first slot and the second slot can be reduced, and the performance of the vertical polarization is improved.

In some embodiments, the radiator is rectangular in shape, the radiator including a first side and a second side adjacent the first side;

the first gap is parallel to the first side edge and passes through the symmetry center of the radiator;

the second gap is parallel to the second side edge and is close to the edge of the radiator.

In the embodiment of the present disclosure, the first slit and the second slit may form a T-shape, and may also form an L-shape, which is not limited.

In some embodiments, the frequency band of the antenna structure for receiving and transmitting wireless signals includes: a first frequency band and a second frequency band different from the first frequency band;

the first frequency band is constructed by a resonant mode of the radiator;

the second frequency band is constructed by a higher order mode in the radiator that is equivalent to the resonant mode.

In the embodiment of the present disclosure, the frequency in the first frequency band may be smaller than the frequency in the second frequency band, and may also be larger than the frequency in the second frequency band, which is not limited in the embodiment of the present disclosure.

Illustratively, the first frequency band may be a 2.4G frequency band and the second frequency band may be a 5G frequency band; alternatively, the first frequency band may be a B1 frequency band and the second frequency band may be a B3 frequency band.

In the embodiment of the disclosure, the resonant mode is a mode with highest transmitting and receiving efficiency of the radiator for transmitting and receiving wireless signals, that is, the radiator has the highest transmitting and receiving efficiency when transmitting wireless signals in the first frequency band.

It should be noted that, in the resonant mode, the radiator may use a radiator with a radiation length of one quarter or one half.

In the embodiment of the disclosure, in a resonance mode, a radiator is coupled by adopting a first gap to form a horizontal polarized wave of a first frequency band; the radiator is coupled by the second gap to form a vertically polarized wave of the first frequency band. In this way, the antenna structure realizes dual polarization of the first frequency band.

In the high-order mode, the radiator is coupled by adopting a first gap to form horizontal polarized waves of a second frequency band; the radiator is coupled by a second gap to form a vertically polarized wave of a second frequency band. In this way, the antenna structure realizes dual polarization of the second frequency band.

In the embodiment of the disclosure, whether dual polarization of the first frequency band is realized in the resonance mode or dual polarization of the second frequency band is realized in the higher order mode, the vertical polarized wave formed at the second slot can be tuned according to the setting parameters of the first slot and the tuning of the vertical polarized wave formed by coupling the radiator at the second slot, so that the mutual influence of the horizontal polarized wave and the vertical polarized wave is reduced, and the vertical polarization performance is improved.

In the embodiment of the disclosure, the antenna structure does not directly construct the second frequency band based on the frequency multiplication of the first frequency band, but constructs the first frequency band and the second frequency band based on the antenna working mode, so that the two frequency bands of the antenna structure for receiving and transmitting wireless signals do not need to be in frequency multiplication relation, the antenna structure can be constructed according to actual needs, further the antenna structure of the embodiment of the disclosure can adapt to different frequency band requirements, and the scene that the antenna structure realizes dual polarization of different frequency bands is enlarged.

In some embodiments, the radiator comprises: a first radiation patch located on a first surface of the dielectric substrate and a second radiation patch located on a second surface of the dielectric substrate, the first surface and the second surface being two opposite surfaces of the dielectric substrate;

the shape and size of the first radiating patch are the same as the shape and size of the second radiating patch.

In the embodiment of the disclosure, the shape and the size of the first radiation patch are the same as those of the second radiation patch, so that the transceiving equivalent circuits of the first radiation patch and the second radiation patch can be simplified, the complex, bandwidth-narrow and discontinuous impedance conditions of the radiator equivalent circuits can be reduced, and the transceiving performance of the antenna structure is improved.

In the embodiment of the present disclosure, the shape of the first radiation patch and the shape of the second radiation patch may be set according to the antenna receiving and transmitting frequency band form of actual requirements, and the embodiment of the present disclosure is not limited.

For example, when the shape of the first radiation patch and the shape of the second radiation patch are both square, the corresponding antenna structure receives and transmits the linear polarization frequency band, so that dual polarization performance can be realized for at least two linear polarization frequency bands; when the shape of the first radiation patch and the shape of the second radiation patch are both circular, the corresponding antenna structure receives and transmits the circular polarized frequency bands, so that the dual polarization performance of at least two circular polarized frequency bands can be realized; when the shape of the first radiation patch and the shape of the second radiation patch are both elliptical, the elliptical polarized frequency bands are received and transmitted corresponding to the antenna structure, and therefore dual polarization performance can be achieved for at least two elliptical polarized frequency bands. Thus, according to the embodiment of the disclosure, the respective dual polarization of the antenna structure under the polarization forms of a plurality of same frequency bands can be realized by setting the shape of the first radiation patch and the shape of the second radiation patch, and the scene of the dual polarization of the antenna structure can be further enlarged.

In some embodiments, the frequency band of the antenna structure for receiving and transmitting wireless signals includes a first frequency band and a second frequency band, wherein the center frequency of the first frequency band is greater than the center frequency of the second frequency band;

the antenna structure further comprises:

the frequency selection surface unit is positioned on the medium substrate and is arranged at intervals with the radiator, and is used for allowing the wireless signals of the first frequency band to pass through and filtering the wireless signals of the second frequency band.

In the embodiment of the disclosure, the frequency selection surface unit is used for allowing the wireless signals of the first frequency band to pass through and filtering the second frequency band, so that the antenna structure can work simultaneously in a plurality of frequency bands on the basis of realizing dual polarization of the antenna structure in the plurality of frequency bands.

The embodiment of the disclosure also provides a terminal device, which comprises:

the antenna structure of one or more of the embodiments described above;

and the printed circuit board is multiplexed into the dielectric substrate of the antenna structure.

The terminal device may be a wearable electronic device or a mobile terminal. The mobile terminal comprises a mobile phone, a notebook or a tablet computer; the wearable electronic device includes a smart watch or a smart bracelet, and embodiments of the present disclosure are not limited.

In the embodiment of the disclosure, the terminal equipment comprises a printed circuit board, and the printed circuit board is a main board of the terminal equipment and can be a carrier of each functional device in the terminal equipment, so that the electrical connection between each functional device in the terminal equipment can be realized.

In the embodiment of the disclosure, the printed circuit board is multiplexed into the dielectric substrate of the antenna structure, so that the dielectric substrate is not required to be additionally arranged in the terminal equipment, the space occupied by the antenna structure in the terminal equipment can be reduced, and the space utilization rate of the terminal equipment can be improved.

It should be noted that, the "first" and "second" in the embodiments of the present disclosure are merely for convenience of expression and distinction, and are not otherwise specifically meant.

Fig. 5 is a block diagram of a terminal device according to an exemplary embodiment. For example, the terminal device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 5, the terminal device may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, video, etc. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 806 provides power to the various components of the terminal device. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal devices.

The multimedia component 808 includes a screen between the terminal device and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the terminal device is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects for the terminal device. For example, the sensor assembly 814 may detect an on/off state of the terminal device, a relative positioning of the assemblies, such as a display and keypad of the terminal device, the sensor assembly 814 may also detect a change in position of the terminal device or one of the assemblies of the terminal device, the presence or absence of user contact with the terminal device, an orientation or acceleration/deceleration of the terminal device, and a change in temperature of the terminal device. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the terminal device and other devices, either wired or wireless. The terminal device may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal device may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. An antenna structure, the antenna structure comprising:

a dielectric substrate;

the radiator is positioned on the dielectric substrate and provided with at least two gaps which are mutually spaced, and the radiator is used for coupling at least two gaps to form vertical polarized waves and horizontal polarized waves when the antenna structure receives and transmits wireless signals of at least two frequency bands;

the radiator is of an axisymmetric structure, and at least two gaps comprise the gaps positioned outside the symmetry axis of the radiator.

2. The antenna structure of claim 1, wherein at least two of the slots comprise: a first slit forming the horizontally polarized wave and a second slit forming the vertically polarized wave;

the first gap is positioned on the symmetry axis of the radiator;

the second gap is positioned outside the symmetry axis of the radiator and is perpendicular to the first gap.

3. The antenna structure according to claim 2, characterized in that the setting parameter of the first slot corresponds to the tuning of a vertically polarized wave formed by the coupling of the radiator at the second slot; wherein, the setting parameters of the first gap include: the arrangement dimension of the first gap and/or the arrangement position of the first gap on the radiator.

4. The antenna structure of claim 2, wherein the radiator is rectangular in shape, the radiator including a first side and a second side adjacent the first side;

the first gap is parallel to the first side edge and passes through the symmetry center of the radiator;

the second gap is parallel to the second side edge and is close to the edge of the radiator.

5. The antenna structure of claim 2, wherein the shape of the first slot and the shape of the second slot are the same.

6. The antenna structure of claim 2, wherein the shape of the first slot and the shape of the second slot are each in a straight line.

7. The antenna structure according to any one of claims 1 to 6, wherein the frequency band of the antenna structure for transmitting and receiving wireless signals comprises: a first frequency band and a second frequency band different from the first frequency band;

the first frequency band is constructed by a resonant mode of the radiator;

the second frequency band is constructed with a higher order mode equivalent to the resonant mode.

8. The antenna structure according to any one of claims 1 to 6, characterized in that the radiator comprises: a first radiation patch located on a first surface of the dielectric substrate and a second radiation patch located on a second surface of the dielectric substrate, the first surface and the second surface being two opposite surfaces of the dielectric substrate;

the shape and size of the first radiating patch are the same as the shape and size of the second radiating element.

9. The antenna structure according to any one of claims 1 to 6, wherein the frequency band of the antenna structure for transmitting and receiving wireless signals includes a first frequency band and a second frequency band, and a center frequency of the first frequency band is greater than a center frequency of the second frequency band;

the antenna structure further comprises:

the frequency selection surface unit is positioned on the medium substrate and is arranged at intervals with the radiator, and is used for allowing the wireless signals of the first frequency band to pass through and filtering the wireless signals of the second frequency band.

10. A terminal device, characterized in that the terminal device comprises:

the antenna structure of any one of claims 1 to 9;

and the printed circuit board is multiplexed into the dielectric substrate of the antenna structure.

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