CN112164893B - Antenna structure and electronic equipment - Google Patents
Antenna structure and electronic equipment Download PDFInfo
- Publication number
- CN112164893B CN112164893B CN202011063719.1A CN202011063719A CN112164893B CN 112164893 B CN112164893 B CN 112164893B CN 202011063719 A CN202011063719 A CN 202011063719A CN 112164893 B CN112164893 B CN 112164893B
- Authority
- CN
- China
- Prior art keywords
- antenna
- signal
- radio frequency
- processing module
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 description 8
- 238000005562 fading Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
- H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The application discloses an antenna structure and electronic equipment; wherein the antenna structure comprises: the antenna comprises a first antenna, a second antenna, at least one phase shifter, a transceiver and a signal processing module; the transceiver has a first radio frequency path; the first end of the signal processing module is connected with the first radio frequency channel, the second end of the signal processing module is connected with the first antenna, the third end of the signal processing module is connected with the second antenna, and at least one antenna of the first antenna and the second antenna is connected with the signal processing module through a phase shifter; the phase difference between the first radio frequency signal corresponding to the first antenna and the second radio frequency signal corresponding to the second antenna is greater than or equal to 0 and smaller than or equal to 90 degrees. The application can improve the receiving performance of the antenna and solve the problem of lower receiving performance of the antenna with the current antenna structure.
Description
Technical Field
The present application relates to the field of electronic products, and in particular, to an antenna structure and an electronic device.
Background
With the development of electronic devices, the performance requirements of the electronic devices are also higher and higher. Currently, antennas in electronic devices are generally linearly polarized antennas due to the limitations of the external shape and space of the electronic devices. The linear polarization antenna is adopted to receive radio frequency signals, and more than half of the loss of polarization mismatch signals is caused, so that the antenna receiving performance of the antenna structure is lower.
Disclosure of Invention
The embodiment of the application provides an antenna structure and electronic equipment, which are used for solving the problem of low antenna receiving performance of the antenna structure in the prior art.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, an embodiment of the present application provides an antenna structure, including:
a first antenna, a second antenna, and at least one phase shifter;
a transceiver having a first radio frequency path;
the first end of the signal processing module is connected with the first radio frequency channel, the second end of the signal processing module is connected with the first antenna, the third end of the signal processing module is connected with the second antenna, and at least one antenna of the first antenna and the second antenna is connected with the signal processing module through a phase shifter;
the phase difference between the first radio frequency signal corresponding to the first antenna and the second radio frequency signal corresponding to the second antenna is greater than or equal to 0 and smaller than or equal to 90 degrees.
In a second aspect, an embodiment of the present application further provides an electronic device, including an antenna structure as described above.
In this way, in the above scheme of the present application, when the phase difference between the first radio frequency signal and the second radio frequency signal is equal to 90 °, that is, the first antenna and the second antenna may form a circularly polarized antenna, so that the propagation of the antenna in transmission and reception is more unlimited compared with that of a linearly polarized antenna, thereby improving the receiving performance of the antenna; when the phase difference between the first radio frequency signal and the second radio frequency signal is greater than or equal to 0 and smaller than 90 degrees, the first antenna and the second antenna can form an equal-gain combined diversity antenna, and thus the same signal is received through the two antennas, so that the fading degree is reduced, and the antenna receiving performance is improved.
Drawings
Fig. 1 shows one of schematic diagrams of an antenna structure according to an embodiment of the present application;
FIG. 2 shows a second schematic diagram of an antenna structure according to an embodiment of the application;
FIG. 3 is a third schematic diagram of an antenna structure according to an embodiment of the application;
fig. 4 shows a schematic diagram of an antenna structure according to an embodiment of the application;
fig. 5 shows a fifth schematic diagram of an antenna structure according to an embodiment of the application.
Reference numerals illustrate:
11. a first antenna; 12. a second electric wire; 13. a phase shifter; 14. a transceiver; 15. a signal processing module; 16. a frequency divider; 17. a first filter; 18. a first low noise amplifier; 19. a second filter; 20. a second low noise amplifier; 21. a third filter; 22. a switch module; 23. a third antenna; 24. and a fourth antenna.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, an embodiment of the present application provides an antenna structure, including: a first antenna 11, a second antenna 12, at least one phase shifter 13, a transceiver 14 and a signal processing module 15.
Wherein the transceiver 14 has a first radio frequency path; the first end of the signal processing module 15 is connected to the first rf path, the second end of the signal processing module 15 is connected to the first antenna 11, the third end of the signal processing module 15 is connected to the second antenna 12, and at least one of the first antenna 11 and the second antenna 12 is connected to the signal processing module 15 through a phase shifter 13.
Wherein, the phase difference between the first radio frequency signal corresponding to the first antenna 11 and the second radio frequency signal corresponding to the second antenna 12 is greater than or equal to 0 and less than or equal to 90 °.
Alternatively, the first radio frequency signal corresponding to the first antenna 11 may refer to: when receiving the radio frequency signal through the first antenna 11 and the second antenna 12, the radio frequency signal input to the second end of the signal processing module 15 is on the path between the first antenna 11 and the signal processing module 15; the second radio frequency signal corresponding to the second antenna 12 may refer to: the rf signal input to the third terminal of the signal processing module 15 is on the path between the second antenna 12 and the signal processing module 15.
As one implementation: the first antenna 11 is connected to the signal processing module 15 through a phase shifter 13, i.e. the phase shifter 13 is arranged between the first antenna 11 and the signal processor 15, and the phase shifter 13 is not arranged between the second antenna 12 and the signal processor 15. In this way, the phase of the first radio frequency signal corresponding to the first antenna 11 may be adjusted by the phase shifter 13 between the first antenna 11 and the signal processor 15 such that the phase difference between the first radio frequency signal corresponding to the first antenna 11 and the second radio frequency signal corresponding to the second antenna 12 is greater than or equal to 0 and less than or equal to 90 °.
As another implementation: the second antenna 12 is connected to the signal processing module 15 through a phase shifter 13, i.e. the phase shifter 13 is disposed between the second antenna 12 and the signal processor 15, and no phase shifter 13 is disposed between the first antenna 11 and the signal processor 15. In this way, the phase of the second radio frequency signal corresponding to the second antenna 12 can be adjusted by the phase shifter 13 between the second antenna 12 and the signal processor 15 such that the phase difference between the first radio frequency signal corresponding to the first antenna 11 and the second radio frequency signal corresponding to the second antenna 12 is greater than or equal to 0 and less than or equal to 90 °.
As another implementation: the first antenna 11 is connected with the signal processing module 15 through a first phase shifter, and the second antenna 12 is connected with the signal processing module 15 through a second phase shifter, i.e. a phase shifter 13 is arranged between the first antenna 11 and the signal processor 15 and between the second antenna 12 and the signal processor 15. Thus, the phase of the first radio frequency signal corresponding to the first antenna 11 can be adjusted by the first phase shifter, and the phase of the second radio frequency signal corresponding to the second antenna 12 can be adjusted by the second phase shifter, so that the phase difference between the first radio frequency signal corresponding to the first antenna 11 and the second radio frequency signal corresponding to the second antenna 12 is greater than or equal to 0 and less than or equal to 90 °.
Optionally, when the number of antennas connected to the first radio frequency path is N, N is a positive integer greater than 2. The number of the corresponding phase shifters may be N, or the number of the phase shifters may be N-1, wherein one phase shifter corresponds to one antenna.
For example: 3 antennas are connected to the first radio frequency channel, namely an antenna A, an antenna B and an antenna C; each antenna may be connected to the signal processing module through a phase shifter, for example, the antenna a is connected to the signal processing module through the phase shifter a, the antenna B is connected to the signal processing module through the phase shifter B, and the antenna C is connected to the signal processing module through the phase shifter C. Or, two antennas are respectively connected with the signal processing module through a phase shifter, no phase shifter is arranged between the other antenna and the signal processing module, for example, an antenna A is connected with the signal processing module through a phase shifter A, an antenna B is connected with the signal processing module through a phase shifter B, and no phase shifter is arranged between an antenna C and the signal processing module. Thus, the phases of the radio frequency signals of the corresponding antennas are adjusted through the phase shifters respectively corresponding to the three antennas or the phase shifters on the two antennas so as to meet the condition that the phase difference between the radio frequency signals of at least two antennas is greater than or equal to 0 and less than or equal to 90 degrees.
It should be noted that, the transceiver 14 in the embodiment of the present application has a first rf path, which is not limited to the transceiver 14 having only one first rf path, and the transceiver 14 may include a plurality of first rf paths, where one first rf path corresponds to one signal processing module. Alternatively, one signal processing module may correspond to at least two antennas, see the above embodiments; or, the first antenna 11 and/or the second antenna 12 may be used to radiate or scan the multi-band radio frequency signal, and then a frequency divider is disposed on a path between the antenna and the signal processing module to implement multiplexing of the multi-band antenna.
In this embodiment, when the phase difference between the first radio frequency signal and the second radio frequency signal is adjusted to be equal to 90 ° by the phase shifter 13, that is, the first antenna 11 and the second antenna 12 are two linearly polarized antennas of orthogonal, equal amplitude, so that the first antenna 11 and the second antenna 12 may constitute a left-handed or right-handed circularly polarized antenna. Since the circularly polarized antenna is more unlimited in transmission and reception than the linearly polarized antenna, the reception performance of the antenna is improved.
When the phase difference between the first radio frequency signal and the second radio frequency signal is adjusted to be greater than or equal to 0 and less than 90 ° by the phase shifter 13, the first antenna 11 and the second antenna 12 may constitute an equal gain combined diversity antenna, so that the same signal is received by the two antennas to reduce the degree of fading, thereby improving the antenna receiving performance.
Optionally, the signal processing module 15 is a balun; the first end of the balun is connected to the first radio frequency path, the second end of the balun is connected to the first antenna 11, the third end of the balun is connected to the second antenna 12, and at least one of the first antenna 11 and the second antenna 12 is connected to the balun via a phase shifter 13.
Wherein a phase difference between the first radio frequency signal and the second radio frequency signal is 90 °.
In this embodiment, when the phase difference between the first rf signal and the second rf signal is adjusted to be equal to 90 ° by the phase shifter 13, that is, the first antenna 11 and the second antenna 12 are orthogonal, equal-amplitude, two-wire polarized antennas, and transmitted to the transceiver 14 through the balun, so that the first antenna 11 and the second antenna 12 may constitute a left-handed or right-handed circularly polarized antenna. Because the circular polarized antenna has no limit in transmission and reception compared with the linear polarized antenna, the strength of the received signal is enhanced and the receiving performance of the antenna is improved.
Optionally, the signal processing module 15 is a combiner; the first end of the combiner is connected with the first radio frequency channel, the second end of the combiner is connected with the first antenna 11, the third end of the combiner is connected with the second antenna 12, and at least one antenna of the first antenna 11 and the second antenna 12 is connected with the combiner through a phase shifter 13.
The phase difference between the first radio frequency signal and the second radio frequency signal is larger than or equal to 0 and smaller than 90 degrees.
In this embodiment, when the phase difference between the first rf signal and the second rf signal is adjusted to be greater than or equal to 0 and less than 90 ° by the phase shifter 13, the first antenna 11 and the second antenna 12 may form an equal-gain combined diversity antenna, so that the same signal is received by the two antennas and combined by the combiner and then transmitted to the transceiver 14, so as to reduce the fading degree, thereby improving the antenna receiving performance.
Optionally, as shown in fig. 2 and 3, the transceiver 14 further has a second radio frequency path, and the first frequency band includes a first target frequency band, and the second frequency band includes the first target frequency band and a second target frequency band.
The antenna structure further comprises: and a frequency divider 16, wherein a first end of the frequency divider 16 is connected with the second antenna 12, a second end of the frequency divider 16 is connected with the second radio frequency path, and a third end of the frequency divider 16 is connected with a third end of the signal processing module 15.
Wherein the second rf signal received by the second antenna 12 is divided into a first target signal and a second target signal by the frequency divider 16; the first target signal corresponds to a first target frequency band, and the first target signal is transmitted to the signal processing module 15; the second target signal corresponds to a second target frequency band, and the second target signal is transmitted to the second radio frequency channel.
In this embodiment, in the case where the transceiver 14 has the first radio frequency path and the second radio frequency path, the antenna on the second radio frequency path may be multiplexed, that is, the working frequency band of the antenna on the second radio frequency path may cover part or all of the frequency bands in the first frequency band, so that a circularly polarized antenna or an equal gain combined diversity antenna is formed on the first radio frequency path, thereby improving the antenna receiving performance and improving the utilization rate of the antenna on the second radio frequency path.
It should be noted that, the transceiver 14 in the embodiment of the present application has the second rf path, and is not limited to only one second rf path of the transceiver 14. For example: the transceiver has a plurality of first rf paths and a plurality of second rf paths, one of which may correspond to each frequency divider 16. Of course, when the transceiver 14 has a plurality of first rf paths, the transceiver 14 may also have a second rf path, so that the utilization of the antennas on the second rf path may be improved by implementing multiplexing of the operating frequency bands of the antennas on the plurality of first rf paths on the antennas of the second rf path.
Optionally, the working frequency corresponding to the first antenna 11 covers the first frequency band; the second frequency band is covered by the working frequency corresponding to the second antenna 12; wherein the second frequency band comprises a part of or all of the first frequency band.
As shown in fig. 2 to 4, the antenna structure further includes: a first filter 17 corresponding to the first frequency band, and a first low noise amplifier (low noise amplifier, LNA) 18 corresponding to the first frequency band; the first antenna 11 is connected to the second end of the signal processing module 15 through the first filter 17 and the first low noise amplifier 18.
The antenna structure further comprises: a second filter 19 corresponding to the second frequency band, and a second low noise amplifier 20 corresponding to the second frequency band; the second antenna 12 is connected to a third terminal of the signal processing module 15 through the second filter 19 and the second low noise amplifier 20.
For example: the transceiver 14 may be a transceiver of a global positioning system (Global Positioning System, GPS) antenna. The first radio frequency path may be a GPS L1 path, and the working frequency band covers 1575.42±1.023MHz.
Optionally, the L1 path may also have positioning capabilities such as GLONASS (GLONASS), beidou (Beidou), galileo satellite navigation system (Galileo satellite navigation system), and the operating frequency bands of the first low noise amplifier 18 and the first filter 17 may cover the operating frequency bands of the positioning system at the same time.
For example: when the operating frequency band corresponding to the first antenna 11 and the second antenna 12 includes a target frequency band (e.g., L1 frequency band: 1575.42±1.023 MHz), the first filter 17 and the second filter 19 may select a filter having an operating frequency band of L1; when the operating frequency band corresponding to the first antenna 11 and the second antenna 2 includes two target frequency bands, the first filter 17 and the second filter 19 may select a filter with double pass bands; when the operating frequency band corresponding to the first antenna 11 and the second antenna 13 includes 3 or more target frequency bands, the first filter 17 and the second filter 19 may select a wideband filter.
As shown in fig. 2, the GPS transceiver may also include a second radio frequency path. For example: the second radio frequency path may be a GPS L5 path with an operating band coverage of 1176.45 + -1.023 MHz. The second antenna 12 may transmit the signal via a second filter 19 and said second low noise amplifier 20, and via a frequency divider 16 to the signal processing module 15 and the second radio frequency path of the GPS transceiver, respectively.
For example: the second filter 19 may be a dual-band filter, and uses LNAs in the L1 and L5 bands, so that the radio frequency paths corresponding to the second antenna 12 may implement reception of the L1 and L5 signals simultaneously.
The L1 and L5 signals are separated at the LNA output in the L1, L5 frequency band by a frequency divider 16, wherein the L5 signal enters the transceiver 14 directly, and the L1 signal is combined with the signal received by the first antenna 11 by the balun 151.
In this way, when the phase difference between the signal of the first antenna 11 and the signal of the L5 is adjusted to 90 ° by the phase shifter 13, the signal of the L5 and the signal received by the first antenna 11 are combined by the balun 151, that is, the circularly polarized reception is implemented by two orthogonal linearly polarized antennas, so that the received satellite signal can be enhanced, thereby improving the receiving performance of the system and also improving the GPS L5 channel utilization.
In addition, by selecting a suitable filter and LNA, reception of frequency bands such as GPS L2, L5, beidou B2, etc. may also be implemented on the first antenna 11 and the second antenna 12, and a circularly polarized antenna may be formed on the first radio frequency path, which is not limited in the embodiment of the present application.
As shown in fig. 3, the GPS transceiver includes a first radio frequency path and a second radio frequency path. For example: the first radio frequency path may be a GPS L1 path, with an operating band coverage of 1575.42 + -1.023 MHz. The second radio frequency path may be the GPS L5 path with an operating band coverage of 1176.45 + -1.023 MHz.
For example: the second filter 19 may be a dual-band filter, and uses LNAs in the L1 and L5 bands, so that the radio frequency paths corresponding to the second antenna 12 may implement reception of the L1 and L5 signals simultaneously.
The second antenna 12 may divide the L1 and L5 signals by a second filter 19 and said second low noise amplifier 20 and by a frequency divider 16, wherein the L5 signal directly enters the transceiver 14 and the L1 signal is combined with the signal received by the first antenna 11 by a combiner 152.
When the phase difference between the signal of the first antenna 11 and the L1 signal is adjusted to be the same by the phase shifter 13, or the phase difference is greater than 0 ° and less than 90 °, an equal gain combined diversity antenna can be formed, that is, the signals of the two receiving paths are phase-shifted and corrected by the phase shifter 13, but the amplitude is not corrected, and then the signals are superimposed by the combiner, thereby improving the antenna receiving performance.
Optionally, the antenna structure further comprises: a third filter 21 corresponding to the first frequency band; the transceiver 14 is connected to the first end of the signal processing module 15 through the third filter 21.
For example: in the case that the first frequency band includes a target frequency band, the third filter 21 may be a filter corresponding to the target frequency band; in case the first frequency band comprises two target frequency bands, the third filter 21 may be a dual-band filter; in the case where the first frequency band includes three or more target frequency bands, the third filter 21 may be a wideband filter.
As shown in fig. 5, the transceiver 14 also has a third radio frequency path; the antenna structure further comprises: a switch module 22, a third antenna 23 and a fourth antenna 24.
The first end of the switch module 22 is connected to the third rf path, the second end of the switch module 22 is connected to the third antenna 23, and the third end of the switch module 22 is connected to the fourth antenna 24.
When the signal intensity of the third rf signal corresponding to the third antenna 23 is higher than the signal intensity of the fourth rf signal corresponding to the fourth antenna 24, the first end and the second end of the switch module 22 are turned on; when the signal strength of the third rf signal is equal to or lower than the signal strength of the fourth rf signal, the first end of the switch module 22 is connected to the third end.
Alternatively, the best path of the signals may be selected according to the quality of the main diversity received signals, i.e. the best path of the signals may be selected for transmission to the transceiver according to the quality of the signals of the third antenna 23 and the fourth antenna 24. The selection of the merging algorithm is a well-known technique in the art, and the embodiments of the present application are not described in detail.
In this embodiment, the third antenna 23 and the fourth antenna 24 form a diversity antenna for selecting and combining, so that the signal with higher received signal strength in the third antenna 23 and the fourth antenna 24 is ensured to be transmitted to the transceiver, thereby improving the antenna receiving performance.
Alternatively, the number of diversity antennas for selecting and combining is not limited to only including the third antenna 23 and the fourth antenna 24, and further diversity of more antennas can be achieved by providing a switch module with more paths, which is not limited in the embodiment of the present application.
Alternatively, the switch module 22 may be a single pole, multi-throw switch, such as: when the number of diversity antennas is 2, the switch module 22 can select a single pole double throw switch; when the number of diversity antennas is 3, the switch module 22 may select a single pole three throw switch or the like.
Alternatively, the switch module 22 may include a plurality of switch elements, one for each antenna, each switch element having an on state and an off state; such as: the third antenna 23 may be connected to the third radio frequency path through a first switching element, the fourth antenna 24 may be connected to the third radio frequency path through a second switching element, and so on. Of course, when the number of diversity antennas is plural, the switch module may be configured by combining the switch unit with a single-pole multi-throw switch, which is not limited in the embodiment of the present application.
Alternatively, the space diversity or polarization diversity function of the L1 is realized through the GPS L5 path, the space diversity needs to ensure that the main and diversity antennas have good uncorrelation, and the polarization diversity needs to ensure the polarization orthogonality of the main and diversity antennas.
In the embodiment of the application, the GPS L1 diversity function is realized through the GPS L5 channel, the fading influence of the two receiving channels is irrelevant, and the possibility that the two receiving channels are influenced by deep fading valley points at the same time is also very small, so that the scheme of two pairs of receiving antennas is utilized to independently receive the same signal, and then the signals are combined and output, the fading degree can be greatly reduced, and the GPS receiving performance can be greatly optimized.
It should be noted that, in the embodiment of the present application, the working frequency bands corresponding to the first rf path, the second rf path, and the third rf path are all illustrated by way of example. It should be understood that, when the LNA, the filter, the antenna, etc. that can be compatible with the desired frequency band are selected, the compatibility of other frequency bands, that is, multiple frequency bands, is achieved, which is not limited to the embodiment of the present application.
It should also be noted that, because the hardware structure of the maximum ratio combining is complex, the phase and amplitude correction circuits can be integrated inside the transceiver chip to implement the diversity technique of the maximum ratio combining.
The embodiment of the application also provides electronic equipment which comprises the antenna structure and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
Alternatively, the electronic device may be, but is not limited to, an electronic device with radio frequency function such as a mobile phone, a tablet computer, a telephone watch, etc.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present application, and such modifications and changes are intended to be within the scope of the present application.
Claims (8)
1. An antenna structure comprising:
a first antenna, a second antenna, and at least one phase shifter; the working frequency corresponding to the first antenna covers a first frequency band, and the first frequency band comprises an L1 frequency band; the working frequency corresponding to the second antenna covers a second frequency band, and the second frequency band comprises an L1 frequency band and an L5 frequency band;
a transceiver having a first radio frequency path and a second radio frequency path; the first radio frequency channel is a GPS L1 channel, and the second radio frequency channel is a GPS L5 channel;
the first end of the signal processing module is connected with the first radio frequency channel, the second end of the signal processing module is connected with the first antenna, the third end of the signal processing module is connected with the second antenna, and at least one antenna of the first antenna and the second antenna is connected with the signal processing module through a phase shifter;
the antenna structure further comprises: the first end of the frequency divider is connected with the second antenna, the second end of the frequency divider is connected with the second radio frequency channel, and the third end of the frequency divider is connected with the third end of the signal processing module; the second radio frequency signal received by the second antenna is divided into a first target signal and a second target signal after passing through the frequency divider; the first target signal corresponds to an L1 frequency band and is transmitted to the signal processing module; the second target signal corresponds to an L5 frequency band, and the second target signal is transmitted to the second radio frequency channel;
when the phase difference between the first radio frequency signal corresponding to the first antenna and the first target signal is equal to 90 degrees, the first antenna and the second antenna form a circularly polarized antenna on the GPS L1 path;
or,
a phase difference between the first radio frequency signal and the first target signal is greater than or equal to 0 and less than 90 °; the first antenna and the second antenna form a diversity antenna with equal gain combination on the GPS L1 path.
2. The antenna structure of claim 1, wherein the signal processing module is a balun;
wherein a phase difference between the first radio frequency signal and the first target signal is 90 °.
3. The antenna structure of claim 1, wherein the signal processing module is a combiner;
wherein a phase difference between the first radio frequency signal and the first target signal is greater than or equal to 0 and less than 90 °.
4. The antenna structure of claim 1, wherein the antenna structure further comprises: a first filter corresponding to the first frequency band, and a first low noise amplifier corresponding to the first frequency band;
the first antenna is connected with the second end of the signal processing module through the first filter and the first low-noise amplifier.
5. The antenna structure of claim 1, wherein the antenna structure further comprises: a second filter corresponding to the second frequency band, and a second low noise amplifier corresponding to the second frequency band;
the second antenna is connected with the third end of the signal processing module through the second filter and the second low noise amplifier.
6. The antenna structure of claim 1, wherein the antenna structure further comprises: a third filter corresponding to the first frequency band;
the transceiver is connected with the first end of the signal processing module through the third filter.
7. The antenna structure of claim 1, wherein the transceiver further has a third radio frequency path;
the antenna structure further comprises: the switch module, the third antenna and the fourth antenna;
the first end of the switch module is connected with the third radio frequency channel, the second end of the switch module is connected with the third antenna, and the third end of the switch module is connected with the fourth antenna;
when the signal intensity of the third radio frequency signal corresponding to the third antenna is higher than the signal intensity of the fourth radio frequency signal corresponding to the fourth antenna, the first end and the second end of the switch module are conducted; when the signal intensity of the third radio frequency signal is equal to or lower than the signal intensity of the fourth radio frequency signal, the first end of the switch module is conducted with the third end.
8. An electronic device comprising an antenna structure as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011063719.1A CN112164893B (en) | 2020-09-30 | 2020-09-30 | Antenna structure and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011063719.1A CN112164893B (en) | 2020-09-30 | 2020-09-30 | Antenna structure and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112164893A CN112164893A (en) | 2021-01-01 |
| CN112164893B true CN112164893B (en) | 2023-12-01 |
Family
ID=73862373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011063719.1A Active CN112164893B (en) | 2020-09-30 | 2020-09-30 | Antenna structure and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112164893B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953573A (en) * | 2021-01-28 | 2021-06-11 | 广州慧智微电子有限公司 | Radio frequency front end architecture |
| CN113690577B (en) * | 2021-08-31 | 2023-07-07 | 维沃移动通信（杭州）有限公司 | Wearing equipment and control method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6172652B1 (en) * | 1999-03-10 | 2001-01-09 | Harris Corporation | RF receiving antenna system |
| EP1091447A1 (en) * | 1999-10-07 | 2001-04-11 | Siemens Aktiengesellschaft | Antenna system, in particular for use in a mobile phone handset, and corresponding control method |
| JP2007228348A (en) * | 2006-02-24 | 2007-09-06 | Hitachi Kokusai Electric Inc | Diversity receiver |
| CN101137020A (en) * | 2006-09-01 | 2008-03-05 | 夏普株式会社 | Broadcast receiving apparatus |
| CN201134483Y (en) * | 2007-10-30 | 2008-10-15 | 中国电子科技集团公司第五十四研究所 | Frequency conversion module of antenna |
| CN105206934A (en) * | 2015-09-08 | 2015-12-30 | 安徽华东光电技术研究所 | Phased array receiving antenna system and operation method thereof |
| CN105914465A (en) * | 2016-04-15 | 2016-08-31 | 上海安费诺永亿通讯电子有限公司 | Circularly-polarized antenna and wireless communication device thereof |
| CN108241096A (en) * | 2016-12-26 | 2018-07-03 | 联芯科技有限公司 | The test method and device of a kind of phase-shift circuit, phase shifter and radiance |
| CN109541555A (en) * | 2018-11-15 | 2019-03-29 | 南京长峰航天电子科技有限公司 | One kind is for realizing electromagnetic wave fast variable polarization control device |
| CN111404570A (en) * | 2020-03-19 | 2020-07-10 | 闻泰通讯股份有限公司 | Radio frequency circuit and terminal equipment |
| CN111416636A (en) * | 2020-03-19 | 2020-07-14 | 上海感悟通信科技有限公司 | Multi-antenna signal combination method and wireless communication equipment |
| US10770790B1 (en) * | 2017-02-28 | 2020-09-08 | Space Exploration Technologies Corp. | Uni-dimensional steering of phased array antennas |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001284943A (en) * | 2000-03-30 | 2001-10-12 | Sony Corp | Equipment and method for radio communication |
| IL138597A0 (en) * | 2000-09-20 | 2004-08-31 | Eureka U S A Ltd | System for shifting phase in antenna arrays |
| US20070047678A1 (en) * | 2005-08-30 | 2007-03-01 | Motorola, Inc. | Method and system for combined polarimetric and coherent processing for a wireless system |
| US20090318092A1 (en) * | 2006-06-30 | 2009-12-24 | In4Tel Ltd. | Multi-antenna system for differential wireless communication devices |
-
2020
- 2020-09-30 CN CN202011063719.1A patent/CN112164893B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6172652B1 (en) * | 1999-03-10 | 2001-01-09 | Harris Corporation | RF receiving antenna system |
| EP1091447A1 (en) * | 1999-10-07 | 2001-04-11 | Siemens Aktiengesellschaft | Antenna system, in particular for use in a mobile phone handset, and corresponding control method |
| JP2007228348A (en) * | 2006-02-24 | 2007-09-06 | Hitachi Kokusai Electric Inc | Diversity receiver |
| CN101137020A (en) * | 2006-09-01 | 2008-03-05 | 夏普株式会社 | Broadcast receiving apparatus |
| CN201134483Y (en) * | 2007-10-30 | 2008-10-15 | 中国电子科技集团公司第五十四研究所 | Frequency conversion module of antenna |
| CN105206934A (en) * | 2015-09-08 | 2015-12-30 | 安徽华东光电技术研究所 | Phased array receiving antenna system and operation method thereof |
| CN105914465A (en) * | 2016-04-15 | 2016-08-31 | 上海安费诺永亿通讯电子有限公司 | Circularly-polarized antenna and wireless communication device thereof |
| CN108241096A (en) * | 2016-12-26 | 2018-07-03 | 联芯科技有限公司 | The test method and device of a kind of phase-shift circuit, phase shifter and radiance |
| US10770790B1 (en) * | 2017-02-28 | 2020-09-08 | Space Exploration Technologies Corp. | Uni-dimensional steering of phased array antennas |
| CN109541555A (en) * | 2018-11-15 | 2019-03-29 | 南京长峰航天电子科技有限公司 | One kind is for realizing electromagnetic wave fast variable polarization control device |
| CN111404570A (en) * | 2020-03-19 | 2020-07-10 | 闻泰通讯股份有限公司 | Radio frequency circuit and terminal equipment |
| CN111416636A (en) * | 2020-03-19 | 2020-07-14 | 上海感悟通信科技有限公司 | Multi-antenna signal combination method and wireless communication equipment |
Non-Patent Citations (5)
| Title |
|---|
| A New Design of Filtering Power Dividers With Arbitrary Constant Phase Difference, Impedance Transformation, and Good Isolation;Yun-Peng Lyu;《IEEE Access》;全文 * |
| 一种新型宽带双圆极化天线的研究与设计;陈玉林等;《火控雷达技术》;20100325(第01期);全文 * |
| 基于功分移相器结构的极化捷变天线;许虹;朱旗;;中国科学技术大学学报(第11期);全文 * |
| 超宽带四极化网络;郑聿琳;《中国优秀硕士论文电子期刊网》;20160815;正文下标第49-64页 * |
| 郑聿琳.超宽带四极化网络.《中国优秀硕士论文电子期刊网》.2016, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112164893A (en) | 2021-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8892057B2 (en) | Carrier aggregation radio system | |
| US6931245B2 (en) | Downconverter for the combined reception of linear and circular polarization signals from collocated satellites | |
| US7149489B2 (en) | Diversity apparatus and method for a mobile communication terminal | |
| US9014068B2 (en) | Antenna having active and passive feed networks | |
| US8988308B2 (en) | Wireless communication node with antenna arrangement for dual band reception and transmission | |
| CN112164893B (en) | Antenna structure and electronic equipment | |
| Mondal et al. | A reconfigurable 28/37GHz hybrid-beamforming MIMO receiver with inter-band carrier aggregation and RF-domain LMS weight adaptation | |
| AU2021263636B2 (en) | Radio-frequency circuit and electronic device | |
| EP3347996B1 (en) | Analog processing system for massive-mimo | |
| WO2012135056A1 (en) | Method and apparatus for antenna radiation cross polar suppression | |
| CN112768917B (en) | Positioning communication antenna | |
| GB2421878A (en) | Multiple band handset | |
| US9094098B2 (en) | Multi-band radio frequency (RF) communication device using a single antenna | |
| US20150036726A1 (en) | Beam forming and steering using lte diversity antenna | |
| CN210327566U (en) | Millimeter wave communication system based on directional antenna with fixed direction | |
| US8655261B2 (en) | RF redirection module and system incorporating the RF redirection module | |
| US20230261392A1 (en) | Dual wideband orthogonally polarized antenna | |
| CN112653502B (en) | Portable terminal radio frequency channel based on frequency coordination | |
| Hong et al. | S-band dual-path dual-polarized antenna system for satellite digital audio radio service (SDARS) application | |
| US20040246190A1 (en) | Steerable uplink antenna for moveable redundant beams | |
| KR100733827B1 (en) | Polarization Conversion Type Repeater for Satellite Digital Multimedia Broadcasting Reception | |
| JP2014120842A (en) | Front end circuit | |
| US20230118420A1 (en) | Wireless signal receiving device and system | |
| Stutts et al. | Enhanced Self-Interference Cancellation in a Dual-Fed Circularly Polarized Antenna Array via Hybrid and Quadrature Coupling | |
| CN116247425A (en) | Integrated antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |