CN221304994U - Circularly polarized antenna device and electronic apparatus - Google Patents
Circularly polarized antenna device and electronic apparatus Download PDFInfo
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- CN221304994U CN221304994U CN202323339632.4U CN202323339632U CN221304994U CN 221304994 U CN221304994 U CN 221304994U CN 202323339632 U CN202323339632 U CN 202323339632U CN 221304994 U CN221304994 U CN 221304994U
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
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- 229920006380 polyphenylene oxide Polymers 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
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- 230000005540 biological transmission Effects 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application discloses a circularly polarized antenna device and an electronic device, wherein the circularly polarized antenna device comprises: a circuit board; a first antenna assembly and a second antenna assembly stacked on the circuit board; the antenna comprises a first phase shifting circuit and a second phase shifting circuit, wherein one end of the first phase shifting circuit is electrically connected with the first antenna assembly through the circuit board, and one end of the second phase shifting circuit is electrically connected with the second antenna assembly through the circuit board; one end of the filter circuit is electrically connected with the other ends of the first phase shifting circuit and the second phase shifting circuit respectively, and the other end of the filter circuit is connected with a feed source; the first antenna component supports left-hand circularly polarized radio frequency signal transceiving of a first frequency band under the excitation of the feed source, and the second antenna component supports right-hand circularly polarized radio frequency signal transceiving of a second frequency band under the excitation of the feed source.
Description
Technical Field
The embodiment of the application relates to the technical field of antennas, and more particularly relates to a circularly polarized antenna device and electronic equipment.
Background
Circular polarized antennas are often used for satellite communications because they generally better mitigate the attenuation caused by satellite directional shifts.
In the circularly polarized antennas, the current antenna module generally only supports antennas with single polarization (such as left-handed circular polarization or right-handed circular polarization), and different circularly polarized antennas are independent, so that the space occupation of the antennas is large.
Disclosure of utility model
The embodiment of the application provides a circularly polarized antenna device and electronic equipment. Various aspects of embodiments of the application are described below.
In a first aspect, there is provided a circularly polarized antenna apparatus comprising: a circuit board; a first antenna assembly and a second antenna assembly stacked on the circuit board; the antenna comprises a first phase shifting circuit and a second phase shifting circuit, wherein one end of the first phase shifting circuit is electrically connected with the first antenna assembly through the circuit board, and one end of the second phase shifting circuit is electrically connected with the second antenna assembly through the circuit board; one end of the filter circuit is electrically connected with the other ends of the first phase shifting circuit and the second phase shifting circuit respectively, and the other end of the filter circuit is connected with a feed source; the first antenna component supports left-hand circularly polarized radio frequency signal transceiving of a first frequency band under the excitation of the feed source, and the second antenna component supports right-hand circularly polarized radio frequency signal transceiving of a second frequency band under the excitation of the feed source.
As one possible implementation manner, the first antenna component is an S-band circularly polarized antenna, the second antenna component is an L-band circularly polarized antenna, the second antenna component is disposed on the circuit board, and the first antenna component is disposed on a side, away from the circuit board, of the second antenna component.
As one possible implementation manner, the first antenna component includes a first transmitting antenna and a first receiving antenna, and the second antenna component includes a second transmitting antenna and a second receiving antenna; the second receiving antenna is arranged on the circuit board, and the second transmitting antenna is arranged on one side of the second receiving antenna far away from the circuit board; the first transmitting antenna is arranged on one side, far away from the circuit board, of the second transmitting antenna, and the first receiving antenna is arranged on one side, far away from the circuit board, of the first transmitting antenna.
As a possible implementation, the circularly polarized antenna arrangement further comprises a first set of pin needles and a second set of pin needles; one end of the first pin needle group is electrically connected with the first receiving antenna, and the other end of the first pin needle group is electrically connected with one end of the first phase shifting circuit through the circuit board; one end of the second pin group is electrically connected with the second transmitting antenna, and the other end of the second pin group is electrically connected with one end of the second phase shifting circuit through the circuit board.
As a possible implementation manner, the first group of pin needles includes two first pin needles, and the first phase shifting circuit is used for performing phase shifting processing on radio frequency signals on the two first pin needles so as to enable the first antenna assembly to generate left-hand circularly polarized radio frequency signals; the second group of pin needles comprises two second pin needles, and the second phase shift circuit is used for carrying out phase shift processing on radio frequency signals on the two second pin needles so as to enable the second antenna assembly to generate right-hand circularly polarized radio frequency signals.
As a possible implementation manner, the first frequency band includes a first transmitting frequency band, and the second frequency band includes a second receiving frequency band; a first electric coupling gap is formed between the first transmitting antenna and the first receiving antenna, and the first transmitting antenna generates a first resonance mode through the first electric coupling gap under the excitation of the feed source so as to support the left-hand circularly polarized radio frequency signal transmission of the first transmitting frequency band; and a second electric coupling gap is arranged between the second receiving antenna and the second transmitting antenna, and the second receiving antenna generates a second resonance mode through the second electric coupling gap under the excitation of the feed source so as to support the right-hand circularly polarized radio frequency signal reception of the second receiving frequency band.
As one possible implementation manner, the projections of the first transmitting antenna and the first receiving antenna on the circuit board are regular polygons or circles; and the projections of the second transmitting antenna and the second receiving antenna on the circuit board are regular polygons or circles.
As a possible implementation manner, a projection area of the first receiving antenna on the circuit board is smaller than a projection area of the first transmitting antenna on the circuit board; and/or the projection area of the second transmitting antenna on the circuit board is smaller than the projection area of the second receiving antenna on the circuit board.
As a possible implementation manner, the first frequency band includes a first receiving frequency band and a first transmitting frequency band, and the second frequency band includes a second receiving frequency band and a second transmitting frequency band; the projections of the first transmitting antenna, the first receiving antenna, the second transmitting antenna and the second receiving antenna on the circuit board are square; the projection side length of the first receiving antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the first receiving frequency band, the projection side length of the first transmitting antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the first transmitting frequency band, the projection side length of the second transmitting antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the second transmitting frequency band, and the projection side length of the second receiving antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the second receiving frequency band.
As a possible line of sight, the first transmitting antenna, the first receiving antenna, the second transmitting antenna and the second receiving antenna each include a base material layer and a metal layer that are stacked, and the metal layer is disposed on a side of the base material layer away from the circuit board.
As one possible implementation, the substrate layer is a polyphenylene oxide material, and the metal layer includes a copper layer and a nickel layer.
As a possible implementation manner, the first phase shift circuit, the second phase shift circuit and the filter circuit are attached to the circuit board.
As a possible implementation manner, the first frequency band is an N256 frequency band, and the second frequency band is an N255 frequency band.
In a second aspect, an electronic device is provided, comprising a circularly polarized antenna arrangement according to the first aspect or any implementation of the first aspect.
The embodiment of the application provides a circularly polarized antenna device, which comprises: a circuit board; a first antenna assembly and a second antenna assembly stacked on the circuit board; the antenna comprises a first phase shifting circuit and a second phase shifting circuit, wherein one end of the first phase shifting circuit is electrically connected with a first antenna assembly through a circuit board, and one end of the second phase shifting circuit is electrically connected with a second antenna assembly through the circuit board; one end of the filter circuit is electrically connected with the other ends of the first phase shifting circuit and the second phase shifting circuit respectively, and the other end of the filter circuit is connected with the feed source; the first antenna component supports left-hand circularly polarized radio frequency signal transceiving of a first frequency band under the excitation of the feed source, and the second antenna component supports right-hand circularly polarized radio frequency signal transceiving of a second frequency band under the excitation of the feed source. In the circularly polarized antenna device in the scheme, the left-handed circularly polarized antenna (the first antenna component) and the right-handed circularly polarized antenna (the second antenna component) are arranged on the circuit board in a stacked mode, and the stacked design is adopted, so that the space of the antenna is saved. In addition, the scheme adopts a filter circuit (such as a duplexer) to filter and isolate the left-hand circularly polarized radio frequency signal and the right-hand circularly polarized radio frequency signal, thereby being beneficial to reducing the combining loss of the left-hand circularly polarized radio frequency signal and the right-hand circularly polarized radio frequency signal.
Drawings
Fig. 1 is a schematic structural diagram of a circularly polarized antenna device according to an embodiment of the present application.
Fig. 2 is an exploded schematic view of the antenna assembly shown in fig. 1.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better illustration of the application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, well known methods and means have not been described in detail in order to not obscure the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
Circular polarized antennas are often used for satellite communications because they generally better mitigate the attenuation caused by satellite directional shifts. In the circularly polarized antennas, the current antenna module generally only supports antennas with single polarization (such as left-handed circular polarization or right-handed circular polarization), and different circularly polarized antennas are independent, so that the space occupation of the antennas is large. In addition, the independent left-hand circular polarization antenna and right-hand circular polarization usually combine signals in two frequency bands through a common combiner, so that the combining loss of radio frequency signals is large (for example, more than 3dB loss can be generated), and the antenna performance is greatly influenced.
In view of the foregoing, an embodiment of the present application provides a circularly polarized antenna apparatus, including: a circuit board; a first antenna assembly and a second antenna assembly stacked on the circuit board; the antenna comprises a first phase shifting circuit and a second phase shifting circuit, wherein one end of the first phase shifting circuit is electrically connected with a first antenna assembly through a circuit board, and one end of the second phase shifting circuit is electrically connected with a second antenna assembly through the circuit board; one end of the filter circuit is electrically connected with the other ends of the first phase shifting circuit and the second phase shifting circuit respectively, and the other end of the filter circuit is connected with the feed source; the first antenna component supports left-hand circularly polarized radio frequency signal transceiving of a first frequency band under the excitation of the feed source, and the second antenna component supports right-hand circularly polarized radio frequency signal transceiving of a second frequency band under the excitation of the feed source. In the circularly polarized antenna device in the scheme, the left-handed circularly polarized antenna (the first antenna component) and the right-handed circularly polarized antenna (the second antenna component) are arranged on the circuit board in a stacked mode, and the stacked design is adopted, so that the space of the antenna is saved. In addition, the scheme adopts a filter circuit (such as a duplexer) to filter and isolate the left-hand circularly polarized radio frequency signal and the right-hand circularly polarized radio frequency signal, thereby being beneficial to reducing the combining loss of the left-hand circularly polarized radio frequency signal and the right-hand circularly polarized radio frequency signal.
The circular polarized antenna apparatus according to the embodiment of the present application will be described in detail with reference to fig. 1. As shown in fig. 1, the circularly polarized antenna apparatus 100 may include a circuit board 110, a first antenna assembly 120, a second antenna assembly 130, a first phase shift circuit 140, a second phase shift circuit 150, and a filter circuit 160.
The first antenna assembly 120 and the second antenna assembly 130 are stacked on the circuit board 110; one end of the first phase shift circuit 140 is electrically connected with the first antenna assembly 120 through the circuit board 110, and one end of the second phase shift circuit 150 is electrically connected with the second antenna assembly 130 through the circuit board 110; one end of the filter circuit 160 is electrically connected with the other ends of the first phase shift circuit 140 and the second phase shift circuit 150 respectively, and the other end of the filter circuit 160 is connected with the feed source 170; the first antenna assembly 120 supports left-hand circularly polarized radio frequency signal transceiving of a first frequency band under the excitation of the feed source 170, and the second antenna assembly 130 supports right-hand circularly polarized radio frequency signal transceiving of a second frequency band under the excitation of the feed source 170. The radio frequency signal in the embodiment of the application can be a satellite signal.
In some embodiments, the first antenna assembly 120 is an S-band circularly polarized antenna and the second antenna assembly 130 is an L-band circularly polarized antenna.
The first antenna component 120 of the S-band may support left-hand circularly polarized rf signal transceiving of a first frequency band, for example, the first frequency band may be N256 frequency bands (Tx: 1980MHz-2010MHz, rx:2170MHz-2200 MHz); the second antenna assembly 130 in the L-band may support right-hand circularly polarized rf signal transmission and reception in a second frequency band, which may be, for example, N255 frequency band (Tx: 1626.5MHz-1660.5MHz, rx:1525MHz-1559 MHz).
It will be appreciated that the shorter the wavelength of the rf signal in the higher frequency band, the smaller the corresponding antenna length or area. Therefore, the projected area of the first antenna assembly 120 of the S-band on the circuit board 110 is smaller than the projected area of the second antenna assembly 130 of the L-band on the circuit board 110, and thus, the second antenna assembly 130 can be disposed on the circuit board 110, and the first antenna assembly 120 is disposed on a side of the second antenna assembly 130 away from the circuit board 110. That is, the smaller antenna is disposed on the upper layer of the circuit board 110, which can effectively prevent the shielding of the antenna for receiving and transmitting signals, and is helpful for improving the radiation efficiency of the antenna.
Fig. 2 is an exploded eleven view of a first antenna assembly and a second antenna assembly. In some embodiments, referring to fig. 2, the first antenna assembly 120 includes a first transmit antenna 122 and a first receive antenna 121, and the second antenna assembly 130 includes a second transmit antenna 131 and a second receive antenna 132; the second receiving antenna 132 is disposed on the circuit board 110, and the second transmitting antenna 131 is disposed on a side of the second receiving antenna 132 away from the circuit board 110; the first transmitting antenna 122 is disposed at a side of the second transmitting antenna 131 away from the circuit board 110, and the first receiving antenna 121 is disposed at a side of the first transmitting antenna 122 away from the circuit board 110.
In some embodiments, the projections of the first transmitting antenna 122 and the first receiving antenna 121 on the circuit board 110 are regular polygons or circles; the projections of the second transmitting antenna 131 and the second receiving antenna 132 on the circuit board 110 are regular polygons or circles.
In some embodiments, the first frequency band includes a first receive frequency band (e.g., RX:2170MHz-2200 MHz) and a first transmit frequency band (e.g., tx:1980MHz-2010 MHz), and the second frequency band includes a second receive frequency band (e.g., RX:1525MHz-1559 MHz) and a second transmit frequency band (e.g., tx:1626.5MHz-1660.5 MHz).
In some embodiments, as shown in the above frequency band, the frequency of the first receiving frequency band is higher than the frequency of the first transmitting frequency band, so the first receiving antenna 121 and the first transmitting antenna 122 may be disposed such that the projected area of the first receiving antenna 121 on the circuit board 110 is smaller than the projected area of the first transmitting antenna 122 on the circuit board 110; as shown in the above frequency band, the frequency of the second transmitting frequency band is higher than the frequency of the second receiving frequency band, and therefore, the second receiving antenna 132 and the second transmitting antenna 131 may be disposed such that the projected area of the second transmitting antenna 131 on the circuit board 110 is smaller than the projected area of the second receiving antenna 132 on the circuit board 110. Further, according to the range relation of the above frequency bands, the first receiving antenna 121, the first transmitting antenna 122, the second transmitting antenna 131, and the second receiving antenna 132 may be set so as to satisfy the following conditions: the projected area of the first receiving antenna 121 on the circuit board 110 < the projected area of the first transmitting antenna 122 on the circuit board 110 < the projected area of the second transmitting antenna 131 on the circuit board 110 < the projected area of the second receiving antenna 132 on the circuit board 110. Therefore, the influence of shielding of the antenna can be reduced to the greatest extent, and the radiation efficiency of the antenna is improved.
In some embodiments, the projections of the first transmitting antenna 122, the first receiving antenna 121, the second transmitting antenna 131, and the second receiving antenna 132 on the circuit board 110 are square; the projection side length of the first receiving antenna 121 on the circuit board 110 is about half of the guided wave wavelength corresponding to the central frequency of the first receiving frequency band, the projection side length of the first transmitting antenna 122 on the circuit board 110 is about half of the guided wave wavelength corresponding to the central frequency of the first transmitting frequency band, the projection side length of the second transmitting antenna 131 on the circuit board 110 is about half of the guided wave wavelength corresponding to the central frequency of the second transmitting frequency band, and the projection side length of the second receiving antenna 132 on the circuit board 110 is about half of the guided wave wavelength corresponding to the central frequency of the second receiving frequency band.
The wavelength corresponding to the center frequency of a certain frequency band may be the wavelength at which the center frequency is transmitted in vacuum or air. In the embodiment of the present application, in the process of communication through the metal layer 102, one surface of the metal layer 102 is air, and the other surface of the metal layer is a substrate, which is not in a full vacuum or full air state. That is, the wavelength of the guided wave in the embodiment of the present application may refer to the wavelength of the metal layer 102, which has one surface as a substrate and the other surface as air, radiating the center frequency signal.
With continued reference to fig. 2, in some embodiments, the circularly polarized antenna apparatus 100 further comprises a first set of pin needles 180 and a second set of pin needles 190; one end of the first pin needle set 180 is electrically connected with the first receiving antenna 121, and the other end of the first pin needle set 180 is electrically connected with one end of the first phase shift circuit 140 through the circuit board 110; one end of the second pin 190 is electrically connected to the second transmitting antenna 131, and the other end of the second pin 190 is electrically connected to one end of the second phase shift circuit 150 through the circuit board 110.
In some embodiments, the first set of pin needles 180 includes two first pin needles, and the first phase shift circuit 140 is configured to perform phase shift processing on the radio frequency signals on the two first pin needles, so that the first antenna component 120 generates a radio frequency signal with left-hand circular polarization; the second pin needles 190 include two second pin needles, and the second phase shift circuit 150 is configured to perform phase shift processing on the radio frequency signals on the two second pin needles, so that the second antenna assembly 130 generates a radio frequency signal with right-hand circular polarization. It can be understood that the design of the two pin needles can ensure that the antenna has good axial ratio bandwidth, thereby realizing good circular polarization characteristics and ensuring that the antenna has certain anti-interference and multipath capacity.
In order to prevent signal interference, two avoidance spaces 181 of the first pin needle may be provided on the first transmitting antenna 122, the second transmitting antenna 131, and the second receiving antenna 132. Similarly, two second pin avoiding holes 191 may be provided in the second receiving antenna 132.
In some embodiments, the first frequency band comprises a first transmit frequency band (e.g., tx:1980MHz-2010 MHz) and the second frequency band comprises a second receive frequency band (e.g., RX:1525MHz-1559 MHz); a first electric coupling gap is formed between the first transmitting antenna 122 and the first receiving antenna 121, the first transmitting antenna 122 generates a first resonance mode through the first electric coupling gap under the excitation of the feed source 170 so as to support the transmission of the left-hand circularly polarized radio frequency signals of the first transmitting frequency band, and the first resonance mode supports the first transmitting frequency band; a second electric coupling gap is formed between the second receiving antenna 132 and the second transmitting antenna 131, and the second receiving antenna 132 generates a second resonance mode through the second electric coupling gap under the excitation of the feed source 170 so as to support the right-hand circularly polarized radio frequency signal receiving of the second receiving frequency band, and the second resonance mode supports the second receiving frequency band.
It will be appreciated that the first receiving antenna 121 may be fed directly through the first set of pin pins 180, supporting left hand circularly polarized radio frequency signal reception in the first receiving frequency band under excitation of the feed 170. The second transmitting antenna 131 can be directly fed through the second pin group 190, and supports right-hand circularly polarized radio frequency signal transmission of the second transmitting frequency band under the excitation of the feed source 170.
In some embodiments, each of the first transmitting antenna 122, the first receiving antenna 121, the second transmitting antenna 131, and the second receiving antenna 132 includes a substrate layer 101 and a metal layer 102 that are stacked, and the metal layer 102 is disposed on a side of the substrate layer 101 away from the circuit board 110.
As one example, the first receiving antenna 121 may include a first substrate layer and a first metal layer, and the first transmitting antenna 122 may include a second substrate layer and a second metal layer. The second transmitting antenna 131 may include a third substrate layer and a third metal layer, and the second receiving antenna 132 may include a fourth substrate layer and a fourth metal layer.
In some embodiments, the substrate layer 101 may be a polyphenylene oxide (polyphenylene oxide, PPO) material, where PPO has a low dielectric constant and low loss characteristics, so as to ensure performance of the antenna. Of course, other alternative materials are also possible, for example, the substrate layer 101 may be a ceramic material or a composite material, which is not particularly limited in the present application.
In some embodiments, the metal layer 102 may include a copper layer and a nickel layer. The copper layer may be disposed on a side of the substrate layer 101 remote from the circuit board 110, and the nickel layer may be disposed on a side of the copper layer remote from the circuit board 110. Of course, the metal layer 102 may be other alternative materials, for example, the metal layer 102 may be one or more metal layers 102 of gold, silver, etc. It should be appreciated that the metal layer may be disposed on the substrate layer by a plating process or the like to form a metal face that acts as a radiator for the antenna.
Note that the first coupling gap may refer to a gap between a metal layer (first metal layer) of the first receiving antenna 121 and a metal layer (second metal layer) of the first transmitting antenna 122, and the first coupling gap may include a substrate layer (first substrate layer) of the first receiving antenna 121. The second coupling gap may refer to a gap between a metal layer (third metal layer) of the second transmitting antenna 131 and a metal layer (fourth metal layer) of the second receiving antenna 132, and the second coupling gap may include a substrate layer (third substrate layer) of the second transmitting antenna 131.
In some embodiments, the first phase shifting circuit 140, the second phase shifting circuit 150, and the filtering circuit 160 may be attached to the circuit board 110.
In some embodiments, the circuit board 110 may be a flexible circuit board (flexible printed circuit, FPC), a liquid crystal polymer (liquid crystal polymer, LCP) board, or a printed circuit board (printed circuit board, PCB), or the like. The present application is not particularly limited thereto.
The embodiment of the present application further provides an electronic device 200, and the electronic device 200 in the embodiment of the present application is described in detail below with reference to fig. 3. As shown in fig. 3, the electronic device 200 may include any of the types of circularly polarized antenna arrangements 100 described above.
In some embodiments, the electronic device 200 may also include a feed 170. Of course, the feed 170 may be provided in the circularly polarized antenna device 100. The present application is not particularly limited thereto.
In some embodiments, the feed 170 may include, but is not limited to, a radio frequency transceiver chip and radio frequency front-end circuitry. The feed 170 may be provided on an antenna panel or motherboard (not shown) of the electronic device 200.
The electronic device 200 in the embodiment of the present application may be any type of electronic device having a wireless communication function. The electronic device may be a portable mobile terminal or a handheld mobile terminal. For example, the electronic device may be a smart phone (mobile phone), a tablet computer (Pad), a palm computer, etc., to which the present application is not limited in particular.
In the description of the present application, it should be understood that the terms "length," "width," "thickness," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, reference to the terms "some embodiments," "examples," "specific examples," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (14)
1. A circularly polarized antenna assembly, comprising:
a circuit board;
a first antenna assembly and a second antenna assembly stacked on the circuit board;
The antenna comprises a first phase shifting circuit and a second phase shifting circuit, wherein one end of the first phase shifting circuit is electrically connected with the first antenna assembly through the circuit board, and one end of the second phase shifting circuit is electrically connected with the second antenna assembly through the circuit board;
One end of the filter circuit is electrically connected with the other ends of the first phase shifting circuit and the second phase shifting circuit respectively, and the other end of the filter circuit is connected with a feed source;
The first antenna component supports left-hand circularly polarized radio frequency signal transceiving of a first frequency band under the excitation of the feed source, and the second antenna component supports right-hand circularly polarized radio frequency signal transceiving of a second frequency band under the excitation of the feed source.
2. The apparatus of claim 1, wherein the first antenna assembly is an S-band circularly polarized antenna, the second antenna assembly is an L-band circularly polarized antenna, the second antenna assembly is disposed on the circuit board, and the first antenna assembly is disposed on a side of the second antenna assembly remote from the circuit board.
3. The apparatus of claim 2, wherein the first antenna assembly comprises a first transmit antenna and a first receive antenna, and the second antenna assembly comprises a second transmit antenna and a second receive antenna;
The second receiving antenna is arranged on the circuit board, and the second transmitting antenna is arranged on one side of the second receiving antenna far away from the circuit board; the first transmitting antenna is arranged on one side, far away from the circuit board, of the second transmitting antenna, and the first receiving antenna is arranged on one side, far away from the circuit board, of the first transmitting antenna.
4. The apparatus of claim 3 wherein the circularly polarized antenna means further comprises a first set of pin needles and a second set of pin needles;
One end of the first pin needle group is electrically connected with the first receiving antenna, and the other end of the first pin needle group is electrically connected with one end of the first phase shifting circuit through the circuit board;
One end of the second pin group is electrically connected with the second transmitting antenna, and the other end of the second pin group is electrically connected with one end of the second phase shifting circuit through the circuit board.
5. The apparatus of claim 4, wherein the first set of pin needles comprises two first pin needles, and wherein the first phase shifting circuit is configured to phase shift the radio frequency signals on the two first pin needles to cause the first antenna assembly to generate a left-hand circularly polarized radio frequency signal;
The second group of pin needles comprises two second pin needles, and the second phase shift circuit is used for carrying out phase shift processing on radio frequency signals on the two second pin needles so as to enable the second antenna assembly to generate right-hand circularly polarized radio frequency signals.
6. The apparatus of claim 3, wherein the first frequency band comprises a first transmit frequency band and the second frequency band comprises a second receive frequency band;
A first electric coupling gap is formed between the first transmitting antenna and the first receiving antenna, and the first transmitting antenna generates a first resonance mode through the first electric coupling gap under the excitation of the feed source so as to support the left-hand circularly polarized radio frequency signal transmission of the first transmitting frequency band;
And a second electric coupling gap is arranged between the second receiving antenna and the second transmitting antenna, and the second receiving antenna generates a second resonance mode through the second electric coupling gap under the excitation of the feed source so as to support the right-hand circularly polarized radio frequency signal reception of the second receiving frequency band.
7. The apparatus of claim 3, wherein the projections of the first transmit antenna and the first receive antenna on the circuit board are regular polygons or circles; and the projections of the second transmitting antenna and the second receiving antenna on the circuit board are regular polygons or circles.
8. The apparatus of claim 7, wherein a projected area of the first receive antenna on the circuit board is smaller than a projected area of the first transmit antenna on the circuit board; and/or
The projection area of the second transmitting antenna on the circuit board is smaller than the projection area of the second receiving antenna on the circuit board.
9. The apparatus of claim 7, wherein the first frequency band comprises a first receive frequency band and a first transmit frequency band, and wherein the second frequency band comprises a second receive frequency band and a second transmit frequency band; the projections of the first transmitting antenna, the first receiving antenna, the second transmitting antenna and the second receiving antenna on the circuit board are square;
The projection side length of the first receiving antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the first receiving frequency band, the projection side length of the first transmitting antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the first transmitting frequency band, the projection side length of the second transmitting antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the second transmitting frequency band, and the projection side length of the second receiving antenna on the circuit board is about half of the guided wave wavelength corresponding to the central frequency of the second receiving frequency band.
10. The apparatus of claim 3, wherein the first transmit antenna, the first receive antenna, the second transmit antenna, and the second receive antenna each comprise a substrate layer and a metal layer disposed in a stacked arrangement, the metal layer disposed on a side of the substrate layer remote from the circuit board.
11. The device of claim 10, wherein the substrate layer is a polyphenylene oxide material and the metal layer comprises a copper layer and a nickel layer.
12. The apparatus of any of claims 1-10, wherein the first phase shifting circuit, the second phase shifting circuit, and the filtering circuit are all attached to the circuit board.
13. The apparatus of any one of claims 1-10, wherein the first frequency band is an N256 frequency band and the second frequency band is an N255 frequency band.
14. An electronic device, comprising: a circularly polarised antenna arrangement according to any of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323339632.4U CN221304994U (en) | 2023-12-07 | 2023-12-07 | Circularly polarized antenna device and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323339632.4U CN221304994U (en) | 2023-12-07 | 2023-12-07 | Circularly polarized antenna device and electronic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221304994U true CN221304994U (en) | 2024-07-09 |
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ID=91758590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323339632.4U Active CN221304994U (en) | 2023-12-07 | 2023-12-07 | Circularly polarized antenna device and electronic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221304994U (en) |
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2023
- 2023-12-07 CN CN202323339632.4U patent/CN221304994U/en active Active
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