WO2023169044A1 - 一种天线系统、方法及无线通信设备 - Google Patents

一种天线系统、方法及无线通信设备 Download PDF

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Publication number
WO2023169044A1
WO2023169044A1 PCT/CN2022/140644 CN2022140644W WO2023169044A1 WO 2023169044 A1 WO2023169044 A1 WO 2023169044A1 CN 2022140644 W CN2022140644 W CN 2022140644W WO 2023169044 A1 WO2023169044 A1 WO 2023169044A1
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WO
WIPO (PCT)
Prior art keywords
antenna
frequency band
wireless communication
card
communication device
Prior art date
Application number
PCT/CN2022/140644
Other languages
English (en)
French (fr)
Inventor
王毅
徐媛
张子炎
魏鲲鹏
Original Assignee
荣耀终端有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to EP22879566.2A priority Critical patent/EP4270657A4/en
Publication of WO2023169044A1 publication Critical patent/WO2023169044A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • 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
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the technical field of terminal equipment, and in particular to an antenna system, method and wireless communication equipment.
  • terminal equipment With the continuous development of terminal equipment, terminal equipment has higher and higher requirements for built-in antennas. For example, the antennas are required to be gradually miniaturized and the communication efficiency is getting higher and higher. Terminal devices need to send and receive signals through antennas to make calls or access the Internet. However, after the antenna is miniaturized, the radiator of the antenna is also reduced, resulting in a narrower frequency range covered by the antenna of the terminal device.
  • this application provides an antenna system, method and wireless communication equipment, which can improve antenna performance, such as increasing bandwidth, improving efficiency or reducing SAR.
  • the antennas include: the first antenna, the second antenna to the Nth antenna; the N is an integer greater than or equal to 2; the first antenna is the antenna to be lifted, the i-th antenna is the auxiliary antenna, and i is 2-N Any one of them; the controller is configured to determine that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band to be improved of the first antenna; the preset frequency band to be improved includes at least one frequency band; determine Whether the i-th antenna is working; when the i-th antenna is not working, set the load state of the radio frequency input end of the i-th antenna, and adjust the switch or tuner state on the i-th antenna side so that the i-th antenna Becomes the auxiliary antenna of the first antenna; the load state of the radio frequency input end is set to any of the following: open circuit, broken circuit, isolation or grounding.
  • the controller is specifically configured to, when the wireless communication device includes a single card, determine that the frequency band in which the antenna of the wireless communication device operates belongs to a preset frequency band to be improved, specifically including:
  • the controller is specifically configured to, when the wireless communication device includes a single card, determine that the frequency band in which the antenna of the wireless communication device operates belongs to a preset frequency band to be improved, specifically including:
  • CA band or ENDC band of the single card belongs to the preset frequency band to be improved.
  • both the main card and the secondary card of the dual cards communicate in a single frequency band
  • this application also provides a method for controlling an antenna system, which is applied to an antenna system of a wireless communication device.
  • the antenna system includes: a radio frequency chip, a controller and multiple antennas; the radio frequency chip passes through a power amplifier and a switch.
  • Connect the plurality of antennas; the plurality of antennas include: the first antenna, the second antenna to the Nth antenna; the N is an integer greater than or equal to 2; the first antenna is the antenna to be lifted, and the i-th antenna is Auxiliary antenna, the i is any one of 2-N;
  • the method includes: determining that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band of the first antenna to be improved; the preset frequency band to be improved includes at least one frequency band; determining whether the i-th antenna is working; When the i-th antenna is not working, set the load state of the radio frequency input end of the i-th antenna, and adjust the switch or tuner state on the i-th antenna side so that the i-th antenna becomes the auxiliary antenna of the first antenna ;
  • the load status of the RF input terminal is set to any of the following: open circuit, broken circuit, isolation or grounding.
  • determining that the frequency band in which the antenna of the wireless communication device operates belongs to a preset frequency band to be improved specifically includes: determining that the single card operates in a single frequency band Perform communication; determine that a single frequency band of a single card of the wireless communication device belongs to one of the preset frequency bands to be improved.
  • determining that the frequency band in which the antenna of the wireless communication device operates belongs to a preset frequency band to be improved specifically includes: determining that the single card is in the CA frequency band or ENDC frequency band for communication, and it is determined that the i-th antenna does not work in the CA frequency band or ENDC frequency band; it is determined that the CA frequency band or ENDC frequency band of the single card belongs to the preset frequency band to be improved.
  • determining that the frequency band in which the antenna of the wireless communication device operates belongs to a preset frequency band to be improved specifically includes: determining that the dual SIM cards are dual receivers.
  • the channel is dual-card dual-standby, and the main card and the secondary card of the dual-card communicate in a single frequency band; it is determined that the single frequency band of the main card and the single frequency band of the secondary card belong to the preset to be improved frequency band.
  • a possible implementation method to determine whether the i-th antenna is working specifically includes: confirming whether the i-th antenna is working by determining the MIMO working status of the i-th antenna in the current operating frequency band. When the i-th antenna When not working, set the load state of the radio frequency input end of the i-th antenna, and adjust the switch or tuner state on the i-th antenna side.
  • the present application also provides a wireless communication device, including an antenna system, and further including: a SIM card; the SIM card is a single card or a dual card; signals are sent and received through the antenna system when the SIM card communicates.
  • the controller first determines the frequency band in which the antenna of the current wireless communication device works. Whether it is a single-card device or a dual-card device, it needs to determine whether the communication frequency is a frequency band included in the preset frequency band to be improved. If it is currently If the working frequency band belongs to the preset frequency band to be improved, it is further determined whether the i-th antenna is working. If not, the i-th antenna can be used as an auxiliary antenna, that is, the i-th antenna is idle in the preset frequency band to be improved. Specifically, the controller can set the load status of the i-th antenna to implement the auxiliary operation, where the load status can be adjusted to open circuit, isolation or grounding.
  • the i-th antenna works as an auxiliary antenna of the first antenna, that is, the radiator of the i-th antenna can be used as part of the radiator of the first antenna, thereby increasing the volume of the first antenna and increasing the bandwidth of the first antenna; and
  • the i-th antenna serves as the auxiliary antenna of the first antenna, the i-th antenna becomes part of the first antenna, and there is no isolation problem between the first antenna and the i-th antenna.
  • Figure 1 is a schematic diagram of a wireless communication device provided by an embodiment of the present application.
  • Figure 2 is an architecture diagram of a wireless communication device provided by an embodiment of the present application.
  • Figure 3 is an architectural diagram of an antenna system provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an antenna system provided by an embodiment of the present application.
  • FIG. 5 is a structural diagram of another antenna system provided by an embodiment of the present application.
  • Figure 6a is an effect diagram of the input end load of the unadjusted second antenna corresponding to Figure 5;
  • Figure 6b is a schematic diagram of the radio frequency end tuning of the second antenna provided by the embodiment of the present application.
  • Figure 6c is the effect diagram of adjusting the input end load of the second antenna corresponding to Figure 5;
  • Figure 7 is a schematic diagram of S11 after debugging the switches on the radio frequency end of the second antenna and the antenna side according to the embodiment of the present application.
  • FIG. 8 is a schematic diagram of another antenna system provided by an embodiment of the present application.
  • Figure 9 is a S11 comparison diagram of the first antenna when the second antenna is used as an auxiliary antenna in different states according to the embodiment of the present application.
  • Figure 10 is a comparison diagram of the efficiency of the first antenna when the second antenna is used as an auxiliary antenna in different states according to the embodiment of the present application;
  • Figure 11 is a flow chart of an antenna system control method provided by an embodiment of the present application.
  • Figure 12 is a flow chart of yet another antenna system control method provided by an embodiment of the present application.
  • FIG. 13 is a flow chart of another method for controlling an antenna system provided by an embodiment of the present application.
  • the multi-antenna system can be applied to wireless communication devices, including but not limited to mobile phones, tablet computers, desktops, laptops, notebook computers, ultra-mobile personal computers (Ultra-Mobile Personal Computers). Computer (UMPC), handheld computer, netbook, personal digital assistant (Personal Digital Assistant, PDA), wearable mobile terminal, smart watch.
  • wireless communication devices including but not limited to mobile phones, tablet computers, desktops, laptops, notebook computers, ultra-mobile personal computers (Ultra-Mobile Personal Computers). Computer (UMPC), handheld computer, netbook, personal digital assistant (Personal Digital Assistant, PDA), wearable mobile terminal, smart watch.
  • Figure 1 shows a schematic diagram of a multi-antenna system applied to a mobile phone.
  • Figure 1 is a schematic diagram of a wireless communication device provided by an embodiment of the present application.
  • the mobile phone includes a multi-antenna system 110, a battery 200 and a side button 300.
  • the antenna system including three antennas is taken as an example for introduction.
  • the multi-antenna system 110 includes a first antenna ant1, a second antenna ant2 and a third antenna ant3 arranged at the frame position of a wireless communication device (such as a mobile phone); the battery 200 is used to power the mobile phone; the side button 300 is used for mobile phone reception
  • a wireless communication device such as a mobile phone
  • the battery 200 is used to power the mobile phone
  • the side button 300 is used for mobile phone reception
  • the user's instructions for example, the user can long press the side button 300 to turn on or off the mobile phone.
  • FIG 2 is an architecture diagram of a wireless communication device provided by an embodiment of the present application.
  • the electronic device 100 may include a processor 110.
  • the processor 110 may include one or more processing units.
  • the processor 110 may include an application processor (application processor, AP), a modem processor, and a graphics processor (graphics processing unit). unit (GPU), image signal processor (ISP), controller, video codec, digital signal processor (DSP), baseband processor, and/or neural network processor (neural -network processing unit, NPU), etc.
  • application processor application processor
  • AP application processor
  • modem processor a modem processor
  • graphics processor graphics processor
  • graphics processor graphics processor
  • graphics processor graphics processor
  • unit GPU
  • DSP digital signal processor
  • NPU neural network processor
  • different processing units can be independent devices or integrated in one or more processors.
  • the controller can generate operation control signals based on the instruction operation code and timing signals to complete the control of fetching and executing instructions.
  • the processor 110 may also be provided with a memory for storing instructions and data.
  • the memory in processor 110 is cache memory. This memory may hold instructions or data that have been recently used or recycled by processor 110 . If the processor 110 needs to use the instructions or data again, it can be called directly from the memory. Repeated access is avoided and the waiting time of the processor 110 is reduced, thus improving the efficiency of the system.
  • the antenna 1 of the electronic device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology.
  • the wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc.
  • the GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi) -zenith satellite system (QZSS) and/or satellite based augmentation systems (SBAS).
  • GPS global positioning system
  • GLONASS global navigation satellite system
  • BDS Beidou navigation satellite system
  • QZSS quasi-zenith satellite system
  • SBAS satellite based augmentation systems
  • FIG 3 is an architectural diagram of an antenna system provided by an embodiment of the present application.
  • This embodiment provides an antenna system for use in wireless communication equipment; it includes: a radio frequency chip 301, a controller 304 and multiple antennas.
  • the radio frequency chip 301 is connected to multiple antennas through a power amplifier PA and switches 302a and 302b; the multiple antennas include : the first antenna, the second antenna to the Nth antenna; N is an integer greater than or equal to 2; the figure only schematically draws two antennas, such as the first antenna ANT1 and the second antenna ANT2; the first antenna ANT1 is For the antenna to be lifted, the i-th antenna is the auxiliary antenna, and i is any one from 2 to N; for example, when N is 4, the i-th antenna can be the second antenna, the third antenna, or the fourth antenna.
  • the first antenna ANT1 is connected to the power amplifier PA through the switch 302a
  • the second antenna ANT2 is connected to the power amplifier PA through the switch 302b.
  • multiple antennas can correspond to multiple switches, and each antenna is connected to a corresponding switch.
  • multiple antennas can share a power amplifier, or multiple antennas can correspond to different power amplifiers respectively. In the embodiment of the present application, this is not the case. Make specific limitations.
  • the controller 303 is configured to determine that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band to be improved by the first antenna ANT1; the preset frequency band to be improved includes at least one frequency band; it should be understood that the preset frequency band to be improved may include One may also include multiple, which is specifically related to the communication standard of the wireless communication device.
  • the load status of the RF input end is set to any of the following: Open, open, isolation or ground (GND).
  • the controller first determines the frequency band in which the antenna of the current wireless communication device operates. Whether it is a single-card device or a dual-card device, it needs to determine whether the communication frequency is included in the preset frequency band to be improved. If the current working frequency band belongs to the preset frequency band to be improved, then further determine whether the i-th antenna is working. If not, the i-th antenna can be used as an auxiliary antenna, that is, the i-th antenna is in the preset frequency band to be improved. idle. Specifically, the controller can set the load status of the i-th antenna to implement the auxiliary operation, where the load status can be adjusted to open circuit, isolation or grounding.
  • the i-th antenna works as an auxiliary antenna of the first antenna, that is, the radiator of the i-th antenna can be used as part of the radiator of the first antenna, thereby increasing the volume of the first antenna and increasing the bandwidth of the first antenna; and
  • the i-th antenna serves as the auxiliary antenna of the first antenna, the i-th antenna becomes part of the first antenna, and there is no isolation problem between the first antenna and the i-th antenna.
  • FIG 4 is a schematic diagram of an antenna system provided by an embodiment of the present application.
  • an antenna system including five antennas is introduced as an example, namely the first antenna Ant1, the second antenna Ant2, the third antenna Ant3, the fourth antenna Ant4 and the fifth antenna Ant5.
  • the first antenna Ant1 is used as the antenna to be lifted, and the second antenna Ant2 is used as the auxiliary antenna.
  • the second antenna Ant2 works in the remaining frequency bands, and the first antenna Ant1 and the second antenna Ant2 are connected to the radio frequency chip 301 through the switch 302 and the power amplifier PA-1.
  • the second antenna Ant2 When the port 4 of the switch 302 is connected to B, that is, the second antenna Ant2 is connected to the radio frequency chip 301, and the radio frequency path of the second antenna Ant2 is in the Load load working state.
  • port 2 (Open open circuit state) or port 3 (GND-short circuit state) of the switch 302 can be controlled to be connected to port B, that is, port 2 of the switch 302 is In the open circuit state, port 3 is in a short circuit state; that is, the load state of the input terminal of the second antenna Ant2 is open circuit or grounded.
  • the load state of the input terminal of the second antenna Ant2 can also be controlled to be isolated, and no detailed examples will be given here.
  • the second antenna Ant2's own path also includes an antenna tuning device, such as a Switch or Tuner, then the matching state of the Switch or Tuner of the second antenna Ant2 can be further synchronously adjusted so that the second antenna Ant2 can work in the first place where assistance is needed. Near the working frequency band of antenna Ant1.
  • an antenna tuning device such as a Switch or Tuner
  • the following is an introduction based on an antenna system of a mobile phone.
  • FIG. 5 is a structural diagram of another antenna system provided by an embodiment of the present application.
  • pin 4 represents the first antenna, and the frequency band the first antenna works is N78; pin 7 represents the second antenna, and pin 8 is connected to the switch.
  • pin 4 is the feed source, and pin 7 is the low-frequency feed point.
  • the state of pin 7 can be adjusted to open and load. For example, after identifying that the mobile phone is in a single card or non-ENDC LB+N78 state, switch the LB (i.e. pin 4) radio frequency input end to Open, and at the same time improve the N78 performance (bandwidth and efficiency) through the Switch of the LB antenna. Adjust the second antenna to a frequency close to the first antenna.
  • Figure 6a is an effect diagram of the input end load of the unadjusted second antenna corresponding to Figure 5.
  • FIG. 6b is a schematic diagram of radio frequency end tuning of the second antenna provided by an embodiment of the present application.
  • the technical solution provided by this embodiment is to adjust the Low Band antenna input end (port 2) of the second antenna to an open circuit, that is, Open (shown as a load), and adjust the Matching ( Port 8 is adjusted to ground. As shown in the figure, pin 8 is grounded, thereby changing the load state of the input terminal of the second antenna, making the second antenna an auxiliary antenna for the first antenna; the matching of the input terminal of the first antenna-N78 source is not correct. Change.
  • the N78 antenna bandwidth and efficiency are better than the Low Band antenna in the Load state.
  • the efficiency of the antenna system is improved by about 1dB.
  • FIG. 7 is a schematic diagram of S11 after debugging the switches on the radio frequency end of the second antenna and the antenna side according to the embodiment of the present application.
  • the antenna switch on the LB side is directly grounded, and the resonance position is different when it is grounded through inductors with different inductance values, so that different bandwidths can be adjusted, that is, different bandwidths can be expanded.
  • the first antenna works in the medium and high frequency band MHB (1.71 ⁇ 2.7GHz of 2G ⁇ 3G ⁇ 4G ⁇ 5G).
  • the frequency band required for performance improvement is the preset frequency band to be improved as the medium MHB (LTE communication standard B1 /B3/B7/B41 and NR communication standard n1/n3/n7/n41), the second antenna works in the non-MHB frequency band as an example (auxiliary antenna) for explanation.
  • the mobile phone's antenna works in the frequency band B5, since B5 does not belong to the frequency band to be improved, therefore, there is no need to adjust the single-SIM mobile phone working in the B5 frequency band, that is, there is no need to
  • the first antenna is set as an auxiliary antenna. It should be understood that, as shown in the table above, if the antenna works at B1, B3 or B7, there is no need to set up an auxiliary antenna, and the above frequency bands are not included in the frequency bands to be upgraded.
  • FIG 8 is a schematic diagram of another antenna system provided by an embodiment of the present application.
  • Pin 3 corresponds to the MHB Feed of the first antenna, which is the feed point.
  • Pin 2 corresponds to the feed point of the second antenna, pin 1 is the switch tuning point, and the switch is connected in parallel to pin 2.
  • Pin 2 can be adjusted to Open or Load. When the second antenna is used as an auxiliary antenna for the first antenna, pin 2 can be adjusted to the Open state.
  • ENDC EUTRA NR Dual-Connectivit
  • CA Carrier Aggregation
  • the input load When the second antenna is in the non-Load state, the input load is tuned to Open, and by tuning the switch and matching on the side of the second antenna, it serves as an auxiliary antenna for the first antenna, thereby expanding the original mid- and high-frequency bands.
  • the bandwidth of the MHB antenna can cover the B7 frequency band; at the same time, there is no isolation problem between the second antenna and the first antenna, that is, the isolation meets the requirements.
  • Figure 9 shows three different curves, which are S11 when the RF input end of the second antenna is adjusted to different states.
  • S11_Open (4 is on the curve, the resonance position on the curve):
  • the RF input terminal of the second antenna is set to Open, and the switch is S11 of the first antenna when the switch is not tuned.
  • S11_GND (3 is on the curve, the resonance position of the curve):
  • the RF input terminal of the second antenna is set to GND, and the switch is S11 of the first antenna when the switch is not tuned.
  • S11_B7Para both 1 and 2 are on this curve, which is the resonance position on the curve:
  • the RF input terminal of the second antenna is set to Open. After the switch is tuned and matched, S11 of the first antenna is obviously broadened. , there is one more resonance, that is, 1 and 2 respectively represent two different resonance positions.
  • FIG 10 is a comparison diagram of the efficiency of the first antenna when the second antenna is used as an auxiliary antenna in different states according to the embodiment of the present application.
  • the RF input terminal When the second antenna is in the non-Load state, the RF input terminal is tuned to Open, and by tuning the switch and Matching of the second antenna, the second antenna acts as a parasitic auxiliary antenna, thereby expanding the S11 of the MHB of the original first antenna.
  • the antenna efficiency of the first antenna in the B7 frequency band can be improved by about 2dB to 4dB compared with the original one.
  • the technical solution provided by the embodiment of this application can not only improve S11 and antenna efficiency, but also reduce the SAR of the B7 frequency band at the top of the mobile phone, that is, the Top surface by about 45% compared to the original one.
  • SAR the SAR of the B7 frequency band at the top of the mobile phone
  • a single card is introduced. That is, when the wireless communication device includes a single card, in the antenna system provided by the embodiment of the present application, the controller determines that the frequency band in which the antenna of the wireless communication device works belongs to the preset frequency band to be improved.
  • the specific implementation method is: determine the single card. The card communicates in a single frequency band; determine that the single frequency band of a single card of the wireless communication device belongs to one of the preset frequency bands to be upgraded.
  • the preset frequency band to be improved may include one frequency band or multiple frequency bands.
  • the controller determines that the frequency band in which the antenna of the wireless communication device works belongs to the preset frequency band to be improved.
  • the specific implementation method is: determine that the single card communicates in the CA frequency band or the ENDC frequency band, and determine the i-th antenna It does not work in the CA band or ENDC band; make sure that the CA band or ENDC band of the single card belongs to the preset frequency band to be improved.
  • the antenna system and controller provided in this embodiment are specifically used to confirm whether the i-th antenna is working by judging the MIMO working status of the current working frequency band.
  • the i-th antenna is not working, During operation, the load state of the radio frequency input end of the i-th antenna is set, and the switch or tuner state on the side of the i-th antenna is adjusted so that the i-th antenna serves as the auxiliary antenna of the first antenna. It should be understood that if the i-th antenna works at 4*4MIMO, it cannot be used as an auxiliary antenna.
  • the i-th antenna can be used as an auxiliary antenna. That is, when working at 2*2 MIMO, two antennas are not working and are in an idle state, and can be used as auxiliary antennas.
  • the antenna system provided by the embodiment of the present application can realize the adjustment of the auxiliary antenna for both single-card wireless communication equipment and dual-card wireless communication equipment.
  • the auxiliary antenna can be configured for the first working antenna, so that the auxiliary antenna becomes the first antenna. Part of the method is to expand the bandwidth of the first antenna. Since the auxiliary antenna does not operate in other frequency bands, there is no isolation problem between the auxiliary antenna and the first antenna, and the isolation between the two antennas meets the requirements.
  • the technical solutions provided by the embodiments of this application can not only be used to improve antenna performance in cellular communications, but can also be used to determine whether antennas of other communication standards such as GPS, WiFi ⁇ BT antennas are working, and then adjust the GPS or WiFi The load condition of the RF input end of the antenna serves as an auxiliary to the cellular antenna, thereby improving the performance of the required cellular antenna.
  • FIG 11 is a flow chart of a method for controlling an antenna system provided by an embodiment of the present application.
  • the control method of the antenna system provided by this embodiment is applied to the antenna system of wireless communication equipment.
  • the antenna system includes: a radio frequency chip, a controller and multiple antennas; the radio frequency chip connects the multiple antennas through a power amplifier and a switch.
  • Antenna; the plurality of antennas include: a first antenna, a second antenna to an N-th antenna; the N is an integer greater than or equal to 2; the first antenna is an antenna to be lifted, the i-th antenna is an auxiliary antenna, and the i is any one from 2-N;
  • the method includes:
  • S1101 Determine that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band of the first antenna to be improved; the preset frequency band to be improved includes at least one frequency band;
  • the control method of the antenna system provided by the embodiment of the present application first determines the frequency band in which the antenna of the current wireless communication device operates. Whether it is a single-card device or a dual-card device, it is necessary to determine whether the communication frequency is in the preset frequency band to be improved. Included frequency bands, if the currently working frequency band belongs to the preset frequency band to be upgraded, then further determine whether the i-th antenna is working. If not, the i-th antenna can be used as an auxiliary antenna, that is, the i-th antenna is in the preset to be upgraded. The frequency band is free. Specifically, the controller can set the load status of the i-th antenna to implement the auxiliary operation, where the load status can be adjusted to open circuit, isolation or grounding.
  • the i-th antenna works as an auxiliary antenna of the first antenna, that is, the radiator of the i-th antenna can be used as part of the radiator of the first antenna, thereby increasing the volume of the first antenna and increasing the bandwidth of the first antenna; and
  • the i-th antenna serves as the auxiliary antenna of the first antenna, the i-th antenna becomes part of the first antenna, and there is no isolation problem between the first antenna and the i-th antenna.
  • S1201 Obtain information about wireless communication equipment, including communication standards (2G-5G). If it is 4G, obtain the CA combination frequency band information; if it is 5G, obtain the 5G Non-Standalone (NSA, Non-Standalone)-ENDC combination. Frequency band information. If it is a single frequency band, obtain specific frequency band information.
  • S1202 Determine whether the single frequency band belongs to one of the preset frequency bands to be improved; if so, execute S1204; if not, execute S1205;
  • S1203 When the first antenna operates in the CA combined frequency band or the ENDC combined frequency band, determine whether the i-th antenna operates in the combined frequency band; if not, perform S1204; if yes, perform S1205.
  • S1204 Set the load state of the radio frequency input end of the i-th antenna, and adjust the switch or tuner state on the i-th antenna side so that the i-th antenna becomes the auxiliary antenna of the first antenna;
  • the load status is set to any of the following: open circuit, isolated, or grounded.
  • FIG. 13 is a flow chart of another method for controlling an antenna system provided by an embodiment of the present application.
  • S1301 When the wireless communication device includes dual SIM cards, determine whether it is dual SIM dual pass (DSDA, Dual Sim Dual Active) or dual receive channel dual SIM dual standby (DR-DSDS, Dual Receive Dual SIM Dual Standby);
  • DSDA dual SIM dual pass
  • DR-DSDS Dual Receive Dual SIM Dual Standby
  • S1302 When it is DR-DSDS, obtain the communication information of each card, including the communication standard (2G-5G). If it is 4G, obtain the CA combined frequency band information; if it is 5G, obtain the NSA-ENDC combined frequency band information. If it is a single frequency band, obtain specific frequency band information.
  • S1304 Determine whether the i-th antenna is working. If not, execute S1305; otherwise, execute S1306; that is, if the i-th antenna is not working, the i-th antenna can be requisitioned as an auxiliary antenna for the first antenna. If the i-th antenna is working, the i-th antenna cannot be used as an auxiliary antenna.
  • S1305 Set the load state of the radio frequency input end of the i-th antenna, and adjust the switch or tuner state on the i-th antenna side so that the i-th antenna becomes the auxiliary antenna of the first antenna;
  • the load status is set to any of the following: open circuit, isolated, or grounded.
  • the wireless communication device includes a single card, it is determined that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band to be improved, specifically including:
  • a single frequency band of a single card of the wireless communication device belongs to one of the preset frequency bands to be improved.
  • the wireless communication device includes a single card, it is determined that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band to be improved, specifically including:
  • the wireless communication device When the wireless communication device includes dual SIM cards, it is determined that the frequency band in which the antenna of the wireless communication device operates belongs to the preset frequency band to be improved, including:
  • both the primary card and the secondary card of the dual SIM card communicate in a single frequency band
  • the single frequency band of the main card and the single frequency band of the secondary card belong to the preset frequency bands to be improved.
  • determining whether the i-th antenna is working specifically includes: confirming whether the i-th antenna is working by determining the MIMO operating status of the current operating frequency band.
  • determining whether the i-th antenna is working specifically includes: confirming whether the i-th antenna is working by determining the MIMO operating status of the current operating frequency band.
  • the i-th antenna is not working, , set the load state of the radio frequency input end of the i-th antenna, and adjust the switch or tuner state on the i-th antenna side.
  • embodiments of the present application also provide a wireless communication device, which will be introduced in detail below.
  • the wireless communication device provided by the embodiment of the present application is characterized in that it includes the antenna system introduced in the above embodiment, and also includes: a SIM card; the SIM card is a single card or a dual card;
  • the SIM card When the SIM card communicates, it sends and receives signals through the antenna system.
  • the wireless communication device can be a communication terminal such as a mobile phone.
  • the wireless communication device includes the antenna system introduced in the above embodiments, the antenna system includes multiple antennas.
  • the parasitic antenna of the antenna or part of the first antenna can expand the volume of the first antenna, thereby increasing the bandwidth of the first antenna. Since the i-th antenna becomes the first part of the first antenna, there is no isolation between the i-th antenna and the first antenna. degree problem.
  • At least one item (item) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c” ”, where a, b, c can be single or multiple.

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Abstract

本申请提供了一种天线系统、方法及无线通信设备，涉及终端技术领域，系统包括：射频芯片、控制器和多个天线；射频芯片通过功率放大器和开关连接多个天线：第一天线、第二天线至第N天线；第一天线为待提升天线，第i天线为辅助天线，i为2-N中任意一个；控制器确定无线通信设备的天线工作的频段属于第一天线的预设待提升的频段；预设待提升的频段包括至少一个频段；判断第i天线是否在工作；第i天线未工作，设置第i天线的射频输入端的负载状态，调整第i天线侧的开关或Tuner状态；射频输入端的负载状态设置为以下一种：开路、隔离或接地，第i天线成为辅助天线，提高第一天线的性能，例如提高带宽和效率，或降低SAR。

Description

一种天线系统、方法及无线通信设备
本申请要求于2022年03月10日提交中国国家知识产权局、申请号为202210240268.7、发明名称为“一种天线系统、方法及无线通信设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端设备技术领域，尤其涉及一种天线系统、方法及无线通信设备。
背景技术
随着终端设备的不断发展，终端设备对于内置天线的要求越来越高，例如要求天线逐渐小型化，而且，通信效率越来越高。终端设备拨打电话或访问互联网均需要通过天线来收发信号。但是，天线小型化后，天线的辐射体也随之减小，导致终端设备的天线覆盖的频率范围变窄。
随着移动通信技术的发展，第五代(The 5th Generation，5G)移动通信系统的到来，多输入多输出(Multi-input Multi-output，MIMO)天线技术在终端设备上的需求越来越高，目前已从2*2的天线系统逐渐发展到4*4的天线系统，加上原有的WiFi\GPS等，目前的移动终端上往往要容纳8～15根功能天线。
随着电磁辐射对人体的影响越来越被重视，以及比吸收率(SAR，Specific Absorption Rate)的标准严格，现有的终端设备在发射功率受到约束的情况下，对外场通信的影响越加严峻。
目前，终端设备在全面屏超窄边框ID的影响下，天线净空很小(<1mm左右)，单个天线无法在保证性能的同时覆盖更大的带宽。在全面屏超窄边框ID下，一般要求很高的结构紧凑性，在加入MIMO天线后，一方面压缩了原有通信天线的空间，另一方面MIMO天线频段往往和原有通信天线的频段相同，导致天线系统的隔离度恶化。5G系统下天线空间受到压缩后，某些天线辐射体可用的空间减少1/3以上，无法采用分流降SAR的技术方案，造成SAR相比原来恶化，最终影响(OTA，Over The Air)及通信性能，OTA表征天线辐射和接收电磁波的能力。
发明内容
为了解决上述问题，本申请提供了一种天线系统、方法及无线通信设备，能够提高天线性能，例如提高带宽、提升效率或降低SAR。
第一方面，本申请提供了一种天线系统，应用于无线通信设备；包括：射频芯片、控制器和多个天线；所述射频芯片通过功率放大器和开关连接所述多个天线；所述多个天线包括：第一天线、第二天线至第N天线；所述N为大于等于2的整数；所述第一天线为待提升天线，第i天线为辅助天线，所述i为2-N中任意一个；所述控制器，用于确定所述无线通信设备的天线工作的频段属于所述第一天线的预设待提升的频段；所述预设待提升的频段包括至少一个频段；判断第i天线是否在工作；当所述第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使所述第i天线成为所述第一天线的辅助天线；所述射频输入端的负载状态设置为以下任意一种：开路、 断路、隔离或接地。
一种可能的实现方式，所述控制器，具体用于当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
确定所述单卡在单频段进行通信；
确定所述无线通信设备的单卡的单频段属于所述预设待提升的频段之一。
一种可能的实现方式，所述控制器，具体用于当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
确定所述单卡在CA频段或ENDC频段进行通信，且确定所述第i天线未工作在所述CA频段或ENDC频段工作；
确定所述单卡的CA频段或ENDC频段属于所述预设待提升的频段。
一种可能的实现方式，所述控制器，具体用于当所述无线通信设备包括双卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
确定所述双卡为双接收通道的双卡双待时，且所述双卡的主卡和副卡均在单频段进行通信；
判断所述主卡的单频段和所述副卡的单频段均属于所述预设待提升的频段。
一种可能的实现方式，所述控制器，具体用于通过判断当前工作频段的MIMO工作状态来确认所述第i天线是否在工作，，当第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态。
第二方面，本申请还提供一种天线系统的控制方法，应用于无线通信设备的天线系统，所述天线系统包括：射频芯片、控制器和多个天线；所述射频芯片通过功率放大器和开关连接所述多个天线；所述多个天线包括：第一天线、第二天线至第N天线；所述N为大于等于2的整数；所述第一天线为待提升天线，第i天线为辅助天线，所述i为2-N中任意一个；
该方法包括：确定所述无线通信设备的天线工作的频段属于所述第一天线的预设待提升的频段；所述预设待提升的频段包括至少一个频段；判断第i天线是否在工作；当第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使所述第i天线成为所述第一天线的辅助天线；所述射频输入端的负载状态设置为以下任意一种：开路、断路、隔离或接地。
一种可能的实现方式，当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：确定所述单卡在单频段进行通信；确定所述无线通信设备的单卡的单频段属于所述预设待提升的频段之一。
一种可能的实现方式，当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：确定所述单卡在CA频段或ENDC频段进行通信，且确定所述第i天线未工作在所述CA频段或ENDC频段工作；确定所述单卡的CA频段或ENDC频段属于所述预设待提升的频段。
一种可能的实现方式，当所述无线通信设备包括双卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：确定所述双卡为双接收通道的双卡双待时，且所述双卡的主卡和副卡均在单频段进行通信；判断所述主卡的单频段和所述副 卡的单频段均属于所述预设待提升的频段。
一种可能的实现方式，判断第i天线是否在工作还，具体包括：通过判断当前工作频段的所述第i天线的MIMO工作状态来确认所述第i天线的是否在工作，当第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态。
第三方面，本申请还提供一种无线通信设备，包括天线系统，还包括：SIM卡；所述SIM卡为单卡或双卡；所述SIM卡通信时通过所述天线系统收发信号。
本申请提供的技术方案至少具有以下优点：
该天线系统，控制器首先判断目前无线通信设备的天线工作的频段，无论是单卡设备还是双卡设备，均需要判断通信的频率是否是预设待提升的频段中所包括的频段，如果目前工作的频段属于预设待提升的频段，则进一步判断第i天线是否工作，如果否，则第i天线可以作为辅助天线来使用，即第i天线在预设待提升的频段空闲。具体地，控制器可以设置第i天线的负载状态来实现辅助工作，其中负载状态可以调整为开路、隔离或接地。而传统中并没有设置第i天线来作为辅助天线的技术方案，例如第一天线工作时，其余天线不做任何控制。由于第i天线作为第一天线的辅助天线来工作，即第i天线的辐射体可以作为第一天线的辐射体的一部分，从而可以增大第一天线的体积，增加第一天线的带宽；而且第i天线作为第一天线的辅助天线时，第i天线变为第一天线的一部分，不存在第一天线与第i天线的隔离度问题。
附图说明
图1为本申请实施例提供的一种无线通信设备的示意图；
图2为本申请实施例提供的一种无线通信设备的架构图；
图3为本申请实施例提供的一种天线系统的架构图；
图4为本申请实施例提供的一种天线系统的示意图；
图5为本申请实施例提供的另一种天线系统的结构图；
图6a为与图5对应的未调节第二天线的输入端负载的效果图；
图6b为本申请实施例提供的第二天线的射频端调谐的示意图；
图6c为与图5对应的调节第二天线的输入端负载的效果图；
图7为本申请实施例提供的第二天线射频端和天线侧的开关调试不同匹配后的S11示意图；
图8为本申请实施例提供的又一种天线系统的示意图；
图9为本申请实施例提供的第二天线作为辅助天线不同状态时的第一天线的S11对比图；
图10为本申请实施例提供的第二天线作为辅助天线不同状态时的第一天线的效率对比图；
图11为本申请实施例提供的一种天线系统的控制方法的流程图；
图12为本申请实施例提供的又一种天线系统的控制方法的流程图；
图13为本申请实施例提供的另一种天线系统的控制方法的流程图。
具体实施方式
为了使本技术领域的人员更清楚地理解本申请的方案，下面首先说明本申请技术方案的应用场景。
本申请实施例不具体限定多天线系统的应用场景。在一些可能的实施例中，该多天线系统可以应用于无线通信设备，无线通信设备包括但不限于手机、平板电脑、桌面型、膝上型、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer，UMPC)、手持计算机、上网本、个人数字助理(Personal Digital Assistant，PDA)、可穿戴移动终端、智能手表。
为了便于理解，图1示出了一种多天线系统应用于手机的示意图。
参见图1，该图为本申请实施例提供的一种无线通信设备的示意图。
如图1所示，该手机包括多天线系统110、电池200和侧键300。本实施例中以天线系统包括三个天线为例进行介绍。
其中，多天线系统110包括设置在无线通信设备(例如手机)的边框位置的第一天线ant1、第二天线ant2和第三天线ant3；电池200用于给手机供电；侧键300用于手机接收用户的指令，例如，用户可以长按侧键300以对手机进行开机或关机等。
下面结合附图介绍一种无线通信设备的内部架构。
参见图2，该图为本申请实施例提供的一种无线通信设备的架构图。
电子设备100可以包括处理器110，处理器110可以包括一个或多个处理单元，例如：处理器110可以包括应用处理器(application processor，AP)，调制解调处理器，图形处理器(graphics processing unit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的器件，也可以集成在一个或多个处理器中。
控制器可以根据指令操作码和时序信号，产生操作控制信号，完成取指令和执行指令的控制。
处理器110中还可以设置存储器，用于存储指令和数据。在一些实施例中，处理器110中的存储器为高速缓冲存储器。该存储器可以保存处理器110刚用过或循环使用的指令或数据。如果处理器110需要再次使用该指令或数据，可从所述存储器中直接调用。避免了重复存取，减少了处理器110的等待时间，因而提高了系统的效率。
无线通信模块160可以提供应用在电子设备100上的包括无线局域网(wireless local area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，蓝牙(bluetooth，BT)，全球导航卫星系统(global navigation satellite system，GNSS)，调频(frequency modulation，FM)，近距离无线通信技术(near field communication，NFC)，红外技术(infrared，IR)等无线通信的解决方案。无线通信模块160可以是集成至少一个通信处理模块的一个或多个器件。无线通信模块160经由天线2接收电磁波，将电磁波信号调频以及滤波处理，将处理后的信号发送到处理器110。无线通信模块160还可以从处理器110接收待发送的信号，对其进行调频，放大，经天线2转为电磁波辐射出去。
在一些实施例中，电子设备100的天线1和移动通信模块150耦合，天线2和无线通信模块160耦合，使得电子设备100可以通过无线通信技术与网络以及其他设备通信。所 述无线通信技术可以包括全球移动通讯系统(global system for mobile communications，GSM)，通用分组无线服务(general packet radio service，GPRS)，码分多址接入(code division multiple access，CDMA)，宽带码分多址(wideband code division multiple access，WCDMA)，时分码分多址(time-division code division multiple access，TD-SCDMA)，长期演进(long term evolution，LTE)，BT，GNSS，WLAN，NFC，FM，和/或IR技术等。所述GNSS可以包括全球卫星定位系统(global positioning system，GPS)，全球导航卫星系统(global navigation satellite system，GLONASS)，北斗卫星导航系统(beidou navigation satellite system，BDS)，准天顶卫星系统(quasi-zenith satellite system，QZSS)和/或星基增强系统(satellite based augmentation systems，SBAS)。
天线系统实施例
为了提升无线通信设备在窄边框下设置的天线系统的性能，同时使SAR满足要求，下面介绍本申请提供的天线系统的实现方式。
参见图3，该图为本申请实施例提供的一种天线系统的架构图。
本实施例提供一种天线系统，应用于无线通信设备；包括：射频芯片301、控制器304和多个天线，射频芯片301通过功率放大器PA、开关302a和302b连接多个天线；多个天线包括：第一天线、第二天线至第N天线；N为大于等于2的整数；图中仅是示意性画出了2个天线，例如第一天线ANT1和第二天线ANT2；第一天线ANT1为待提升天线，第i天线为辅助天线，i为2-N中任意一个；例如N为4时，第i天线可以为第二天线，也可以为第三天线，也可以为第四天线。其中，第一天线ANT1通过开关302a连接功率放大器PA，第二天线ANT2通过开关302b连接功率放大器PA。应该理解，多个天线时可以对应多个开关，每个天线连接对应的开关，另外，多个天线可以共用一个功率放大器，也可以多个天线分别对应不同的功率放大器，本申请实施例中不做具体限定。
应该理解，本申请实施例不限定辅助天线的个数，例如可以包括一个，也可以包括两个，也可以包括更多个；只要有天线未工作，有符合作为辅助天线的条件，均可以作为辅助天线来工作。
控制器303，用于确定无线通信设备的天线工作的频段属于第一天线ANT1的预设待提升的频段；预设待提升的频段包括至少一个频段；应该理解，预设待提升的频段可以包括一个也可以包括多个，具体与无线通信设备的通信制式有关。
判断第i天线是否工作；当第i天线未工作时，设置第i天线的射频输入端的负载状态，且调整第i天线侧的开关或Tuner状态，使第i天线成为第一天线ANT1的辅助天线，即第i天线需要进行同步调谐；射频输入端的负载状态设置为以下任意一种：开路(Open)、断路、隔离(Isolation)或接地(GND)。
本申请实施例提供的天线系统，控制器首先判断目前无线通信设备的天线工作的频段，无论是单卡设备还是双卡设备，均需要判断通信的频率是否是预设待提升的频段中所包括的频段，如果目前工作的频段属于预设待提升的频段，则进一步判断第i天线是否工作，如果否，则第i天线可以作为辅助天线来使用，即第i天线在预设待提升的频段空闲。具体地，控制器可以设置第i天线的负载状态来实现辅助工作，其中负载状态可以调整为开路、隔离或接地。而传统中并没有设置第i天线来作为辅助天线的技术方案，例如第一天线工 作时，其余天线不做任何控制。由于第i天线作为第一天线的辅助天线来工作，即第i天线的辐射体可以作为第一天线的辐射体的一部分，从而可以增大第一天线的体积，增加第一天线的带宽；而且第i天线作为第一天线的辅助天线时，第i天线变为第一天线的一部分，不存在第一天线与第i天线的隔离度问题。
参见图4，该图为本申请实施例提供的一种天线系统的示意图。
本实施例中以天线系统包括五个天线为例进行介绍，即第一天线Ant1、第二天线Ant2、第三天线Ant3、第四天线Ant4和第五天线Ant5。
本实施例中以第一天线Ant1为待提升天线，第二天线Ant2为辅助天线。其中，第二天线Ant2工作在其余频段，第一天线Ant1和第二天线Ant2通过开关302和功率放大器PA-1与射频芯片301连接。
当开关302的端口1连接到A时，即第一天线Ant1与射频芯片301接通，第一天线Ant1的射频通路即为Load负载工作状态。
当开关302的端口4连接到B时，即第二天线Ant2与射频芯片301接通，第二天线Ant2的射频通路即为Load负载工作状态。
当第二天线Ant2需要作为第一天线Ant1的辅助天线时，可控制开关302中的端口2(Open开路状态)或者端口3(GND-短路状态)与端口B相连，即开关302的端口2为开路状态，端口3为短路状态；即实现第二天线Ant2的输入端的负载状态为开路或接地。当然，也可以控制第二天线Ant2的输入端的负载状态为隔离，在此不再详细举例介绍。如果第二天线Ant2本身通路还包括天线的调谐器件，如Switch or Tuner，此时还可以进一步同步调整第二天线Ant2的Switch or Tuner的匹配状态，使第二天线Ant2工作在需要辅助的第一天线Ant1的工作频段附近。
下面结合手机的一种天线系统来进行介绍。
参见图5，该图为本申请实施例提供的另一种天线系统的结构图。
本实施例中以LB和n78共体双天线射频通路的联调为例进行说明。
如图5所示，管脚4代表第一天线，第一天线工作的频段为N78；管脚7代表第二天线，管脚8连接开关。其中，管脚4为馈源，管脚7为低频馈点，管脚7的状态可以调整为开路(Open)和负载工作(Load)状态。例如，在识别手机为单卡或非ENDC LB+N78的状态后，把LB(即管脚4)射频输入端切换为Open，同时通过LB天线的Switch来提升N78性能(带宽和效率)，即将第二天线调到第一天线的频率附近。
为了更好地说明本申请实施例提供的技术方案的有益效果，下面对比说明天线系统在调节第二天线作为辅助天线之前和之后的区别。
参见图6a，该图为与图5对应的未调节第二天线的输入端负载的效果图。
下面说明第二辅助天线LB射频端在工作时(即负载状态)与第一天线的S11与S21。
LB负载的情况下，通过调谐第二天线低频侧的开关的匹配(Match)，0om时在N78-3.8GHz可形成一个寄生谐振，带宽增加，但此时第一天线和第二天线之间的隔离度S21<-10dB，不满足要求。
因此，为了使S21满足要求，下面介绍本申请实施例提供的一种实现方式。
参见图6b，该图为本申请实施例提供的第二天线的射频端调谐的示意图。
本实施例提供的技术方案，将第二天线的Low Band天线输入端(端口2)调整成开路，即Open(图示为负载)，在调谐N78共体Low Band端开关侧的Switch的Matching(端口8调整成接地，如图所示，管脚8接地，从而改变第二天线的输入端的负载状态，使第二天线成为第一天线的辅助天线；其中第一天线-N78源输入端的匹配不变。
参见图6c，该图为与图5对应的调节第二天线的输入端负载的效果图。
在Low Band第二天线输入端Open的情况下，N78天线带宽和效率均优于Low Band天线在Load的状态，天线系统的效率提升约1dB，同时第一天线和第二天线之间不存在隔离度的问题。
在Low Band第二天线输入端Open的情况下，可进一步通过调整LB侧的天线开关切换不同Matching(电感、电容、0ohm)，可调整辅助寄生在不同的谐振位置，从而拓展第一天线N78频段的带宽。
参见图7，该图为本申请实施例提供的第二天线射频端和天线侧的开关调试不同匹配后的S11示意图。
从图7可以看出，LB侧的天线开关直接接地，与通过不同感值的电感接地时的谐振的位置不同，从而可以实现不同带宽的调整，即实现不同带宽的拓展。
以上介绍的一种天线系统的实现方式，下面介绍另一种天线系统的实现方式。
其中，第一天线工作在中高频段MHB(2G\3G\4G\5G的1.71～2.7GHz)，所需性能提升的频段，即预设待提升频段为中MHB中的(LTE通信制式的B1/B3/B7/B41和NR通信制式的n1/n3/n7/n41)，第二天线工作在非MHB频段为例(辅助天线)进行说明。
Figure PCTCN2022140644-appb-000001
例如，对于单卡的4G手机来说，如果手机的天线工作的频段为B5，由于B5不属于待提升频段，因此，对于工作于B5频段的单卡手机不必进行调整，即不需要为工作的第一天线设置辅助天线。应该理解，如上表所示，如果天线工作在B1、B3或B7，也不需要设置辅助天线，以上频段均不包括在待提升频段内。
参见图8，该图为本申请实施例提供的又一种天线系统的示意图。
管脚3对应第一天线的MHB Feed，即馈点。管脚2对应第二天线的馈点，管脚1为开关调谐点，开关并联在管脚2上。管脚2可以调节为Open或Load。当第二天线作为第一天线的辅助天线时，可以将管脚2调节为Open状态。
例如，在识别手机为单卡MHB且非ENDC(EUTRA NR Dual-Connectivit)/CA(Carrier Aggregation)第一天线和第二天线组合的工作状态以后，设置第二天线的射频输入端为 Open，同时通过调谐天线Switch的Match来提升MHB性能(带宽和效率)，同时降低SAR。其中，ENDC为4G-LTE和5G-NR的双连接工作模式，5G工作模式中的一种。CA为接载波聚合技术，意味着多个频段双连接工作。
第二天线在非Load状态时，将输入端负载调谐至开路(Open)，并通过调谐第二天线侧的开关及Matching，使其作为第一天线的辅助天线，从而可以拓展原有中高频段MHB天线的带宽，可覆盖B7频段；同时第二天线和第一天线不存在隔离度的问题，即隔离度满足要求。
参见图9，该图为本申请实施例提供的第二天线作为辅助天线不同状态时的第一天线的S11对比图。
图9所示出三条不同的曲线，分别为第二天线的射频输入端调整为不同状态时的S11.
S11_Open(4在该曲线上，为该曲线上的谐振位置)：第二天线的射频输入端设置为Open，开关未做调谐时第一天线的S11。
S11_GND(3在该曲线上，为该曲线的谐振位置)：第二天线的射频输入端设置为GND，开关未做调谐时第一天线的S11。
S11_B7Para(1和2均在该曲线上，为该曲线上的谐振位置)：第二天线的射频输入端设置为Open，开关调谐匹配后第一天线的S11，明显可见第一天线的带宽被拓宽，多了一个谐振，即1和2分别代表两个不同的谐振位置。
参见图10，该图为本申请实施例提供的第二天线作为辅助天线不同状态时的第一天线的效率对比图。
第二天线在非Load态时，射频输入端调谐至Open，并通过调谐第二天线的开关及Matching，使第二天线作为一个寄生的辅助天线，从而可以拓展原有第一天线的MHB的S11带宽，同时第一天线在B7频段的天线效率相比原来可提升约2dB～4dB。
本申请实施例提供的技术方案，除了可以提升S11和天线效率以外，B7频段在手机顶部，即Top面上的SAR相比原来也降低了约45％，具体数据可以参见下表。
Figure PCTCN2022140644-appb-000002
本申请实施例提供的天线系统，在为工作的第一天线选择辅助天线时，首先要判断无线通信设备正在工作的频段是否属于预设待提升的频段，如果是，则判断第i天线是否工作在预设待提升的频段，如果是，则不能作为辅助天线，如果未工作在预设待提升的频段，则可以作为辅助天线。
下面分别从单卡的无线通信设备和双卡的无线通信设备来介绍选择辅助天线的工作原理。
首先介绍单卡，即当无线通信设备包括单卡时，本申请实施例提供的天线系统，控制器确定无线通信设备的天线工作的频段属于预设待提升的频段，具体实现方式为：确定单卡在单频段进行通信；确定无线通信设备的单卡的单频段属于预设待提升的频段之一。预设待提升的频段可能包括一个频段，也可能包括多个频段。
当无线通信设备包括单卡时，控制器确定无线通信设备的天线工作的频段属于预设待提升的频段，具体实现方式为：确定单卡在CA频段或ENDC频段进行通信，且确定第i天线未工作在CA频段或ENDC频段工作；确定单卡的CA频段或ENDC频段属于预设待提升的频段。
下面介绍双卡，当无线通信设备包括双卡时，本申请实施例提供的天线系统，控制器确定无线通信设备的天线工作的频段属于预设待提升的频段，具体实现方式为：确定双卡为双接收通道的双卡双待时，且双卡的主卡和副卡均在单频段进行通信；判断主卡的单频段和副卡的单频段均属于预设待提升的频段。如果双卡中有一个卡工作的单频段不属于预设待提升的频段，则不为第一天线选择辅助天线。
当无线通信设备包括双卡时，本实施例提供的天线系统，控制器，具体用于通过判断当前工作频段的MIMO工作状态来确认所述第i天线是否在工作，当所述第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使第i天线作为第一天线的辅助天线。应该理解，如果第i天线工作在4*4MIMO，则无法作为辅助天线。当第i天线工作在2*2MIMO时才可以作为辅助天线，即当工作在2*2MIMO时，有两个天线未工作，处于空闲状态，可以用来作为辅助天线。
本申请实施例提供的天线系统，对于单卡的无线通信设备和双卡的无线通信设备均可以实现辅助天线的调节，可以为正在工作的第一天线配置辅助天线，使辅助天线成为第一天线的一部分，扩宽第一天线的带宽，由于辅助天线不工作在其他频段，因此，辅助天线与第一天线之间不存在隔离度问题，两个天线之间的隔离度满足要求。
另外，本申请实施例提供的技术方案，不仅可用于蜂窝通信内的天线性能提升，还可通过判断其余通信制式的天线如GPS、WiFi\BT天线是否在工作，进而通过调整则对GPS或WiFi天线的射频输入端负载的情况来作为蜂窝天线的辅助，进而提升所需蜂窝天线的性能。
方法实施例
基于以上实施例提供的一种天线系统，本申请实施例还提供一种天线系统的控制方法，下面结合附图进行详细介绍。
参见图11，该图为本申请实施例提供的一种天线系统的控制方法的流程图。
本实施例提供的天线系统的控制方法，应用于无线通信设备的天线系统，所述天线系统包括：射频芯片、控制器和多个天线；所述射频芯片通过功率放大器和开关连接所述多个天线；所述多个天线包括：第一天线、第二天线至第N天线；所述N为大于等于2的整数；所述第一天线为待提升天线，第i天线为辅助天线，所述i为2-N中任意一个；
该方法包括：
S1101：确定无线通信设备的天线工作的频段属于第一天线的预设待提升的频段；预设待提升的频段包括至少一个频段；
S1102：判断第i天线是否在工作；
S1103：当第i天线未工作时，设置第i天线的射频输入端的负载状态，且调整第i天线侧的开关或Tuner状态，使第i天线成为第一天线的辅助天线；射频输入端的负载状态设置为以下任意一种：开路(Open)、断路、隔离(Isolation)或接地(GND)。
本申请实施例提供的天线系统的控制方法，首先判断目前无线通信设备的天线工作的频段，无论是单卡设备还是双卡设备，均需要判断通信的频率是否是预设待提升的频段中所包括的频段，如果目前工作的频段属于预设待提升的频段，则进一步判断第i天线是否在工作，如果否，则第i天线可以作为辅助天线来使用，即第i天线在预设待提升的频段空闲。具体地，控制器可以设置第i天线的负载状态来实现辅助工作，其中负载状态可以调整为开路、隔离或接地。而传统中并没有设置第i天线来作为辅助天线的技术方案，例如第一天线工作时，其余天线不做任何控制。由于第i天线作为第一天线的辅助天线来工作，即第i天线的辐射体可以作为第一天线的辐射体的一部分，从而可以增大第一天线的体积，增加第一天线的带宽；而且第i天线作为第一天线的辅助天线时，第i天线变为第一天线的一部分，不存在第一天线与第i天线的隔离度问题。
下面详细介绍无线通信设备包括单卡的实现方式。
参见图12，该图为本申请实施例提供的又一种天线系统的控制方法的流程图。
S1201：获取无线通信设备的信息，包括通信制式(2G-5G)，如果是4G，则获取CA组合频段信息；如果是5G，则获取5G非独立组网(NSA，Non-Standalone)-ENDC组合频段信息。如果是单频段，则获取具体的频段信息。
S1202：判断该单频段是否属于预设待提升的频段中的一个频段；如果是，则执行S1204；如果否，则执行S1205；
S1203：当第一天线工作在CA组合频段或ENDC组合频段，则判断第i天线是否工作在该组合频段；如果否，则执行S1204；如果是，则执行S1205。
S1204：设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使所述第i天线成为所述第一天线的辅助天线；所述射频输入端的负载状态设置为以下任意一种：开路、隔离或接地。
S1205：第i天线的射频输入端的逻辑状态不变，即不对第i天线进行任何调整。
下面详细介绍无线通信设备包括双卡的实现方式。
参见图13，该图为本申请实施例提供的另一种天线系统的控制方法的流程图。
S1301：当无线通信设备包括双卡时，判断是否为双卡双通(DSDA，Dual Sim Dual Active)或双接收通道的双卡双待(DR-DSDS，Dual Receive Dual SIM Dual Standby)；
S1302：当为DR-DSDS时，获取每个卡的通信信息，包括通信制式(2G-5G)，如果是4G，则获取CA组合频段信息；如果是5G，则获取NSA-ENDC组合频段信息。如果是单频段，则获取具体的频段信息。
S1303：当每个卡即主副卡均为单频段时，工作的单频段属于第一天线待提升频段；即判断主卡和副卡工作在频段是否是第一天线工作的待提升频段；
S1304：判断第i天线是否在工作，如果否，则执行S1305；反之执行S1306；即第i天线没有工作，则第i天线可以被征用，用来作为第一天线的辅助天线。如果第i天线在工 作，则第i天线不能用来作为辅助天线。
S1305：设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使所述第i天线成为所述第一天线的辅助天线；所述射频输入端的负载状态设置为以下任意一种：开路、隔离或接地。
S1306：第i天线的射频输入端的逻辑状态不变，即不对第i天线进行任何调整。
当无线通信设备包括单卡时，确定无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
确定单卡在单频段进行通信；
确定无线通信设备的单卡的单频段属于预设待提升的频段之一。
当无线通信设备包括单卡时，确定无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
确定单卡在CA频段或ENDC频段进行通信，且确定第i天线未工作在CA频段或ENDC频段工作；
确定单卡的CA频段或ENDC频段属于预设待提升的频段。
当无线通信设备包括双卡时，确定无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
确定双卡为双接收通道的双卡双待时，且双卡的主卡和副卡均在单频段进行通信；
判断主卡的单频段和副卡的单频段均属于预设待提升的频段。
本申请实施例提供的天线系统的控制方法，判断第i天线是否在工作具体包括包括：通过判断当前工作频段的MIMO工作状态来确认所述第i天线是否在工作，当第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态。
设备实施例
基于以上实施例提供的一种天线系统及控制方法，本申请实施例还提供一种无线通信设备，下面进行详细介绍。
本申请实施例提供的无线通信设备，其特征在于，包括以上实施例介绍的天线系统，还包括：SIM卡；SIM卡为单卡或双卡；
SIM卡通信时通过天线系统收发信号。
本申请实施例不具体限定无线通信设备的具体形式，例如可以为手机等通信终端，由于该无线通信设备包括以上实施例介绍的天线系统，天线系统包括多个天线，当第一天线工作时，可以从其余天线中查找满足要求的第i天线，对第i天线的射频输入端的负载进行设置，进而调整第i天线作为第一天线的辅助天线，使其能够辅助第一天线工作，成为第一天线的寄生天线或第一天线的一部分，即可以扩大第一天线的体积，进而提升第一天线的带宽，由于第i天线成为第一天线的第一部分，第i天线与第一天线不存在隔离度问题。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)” 或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (11)

  1. 一种天线系统，其特征在于，应用于无线通信设备；包括：射频芯片、控制器和多个天线；所述射频芯片通过功率放大器和开关连接所述多个天线；所述多个天线包括：第一天线、第二天线至第N天线；所述N为大于等于2的整数；所述第一天线为待提升天线，第i天线为辅助天线，所述i为2-N中任意一个；
    所述控制器，用于确定所述无线通信设备的天线工作的频段属于所述第一天线的预设待提升的频段；所述预设待提升的频段包括至少一个频段；
    判断第i天线是否在工作；当所述第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使所述第i天线成为所述第一天线的辅助天线；所述射频输入端的负载状态设置为以下任意一种：开路、断路、隔离或接地。
  2. 根据权利要求1所述的系统，其特征在于，所述控制器，具体用于当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
    确定所述单卡在单频段进行通信；
    确定所述无线通信设备的单卡的单频段属于所述预设待提升的频段之一。
  3. 根据权利要求1所述的系统，其特征在于，所述控制器，具体用于当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
    确定所述单卡在CA频段或ENDC频段进行通信，且确定所述第i天线未工作在所述CA频段或ENDC频段工作；
    确定所述单卡的CA频段或ENDC频段属于所述预设待提升的频段。
  4. 根据权利要求1所述的系统，其特征在于，所述控制器，具体用于当所述无线通信设备包括双卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
    确定所述双卡为双接收通道的双卡双待时，且所述双卡的主卡和副卡均在单频段进行通信；
    判断所述主卡的单频段和所述副卡的单频段均属于所述预设待提升的频段。
  5. 根据权利要求1所述的系统，其特征在于，所述控制器，具体用于通过判断当前工作频段的MIMO工作状态来确认所述第i天线是否在工作，当所述第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态。
  6. 一种天线系统的控制方法，其特征在于，应用于无线通信设备的天线系统，所述天线系统包括：射频芯片、控制器和多个天线；所述射频芯片通过功率放大器和开关连接所述多个天线；所述多个天线包括：第一天线、第二天线至第N天线；所述N为大于等于2的整数；所述第一天线为待提升天线，第i天线为辅助天线，所述i为2-N中任意一个；
    该方法包括：
    确定所述无线通信设备的天线工作的频段属于所述第一天线的预设待提升的频段；所述预设待提升的频段包括至少一个频段；
    判断第i天线是否在工作；
    当所述第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态，使所述第i天线成为所述第一天线的辅助天线；所述射频输入端的负载状态设置为以下任意一种：开路、隔离或接地。
  7. 根据权利要求1所述的方法，其特征在于，当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
    确定所述单卡在单频段进行通信；
    确定所述无线通信设备的单卡的单频段属于所述预设待提升的频段之一。
  8. 根据权利要求1所述的方法，其特征在于，当所述无线通信设备包括单卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
    确定所述单卡在CA频段或ENDC频段进行通信，且确定所述第i天线未工作在所述CA频段或ENDC频段工作；
    确定所述单卡的CA频段或ENDC频段属于所述预设待提升的频段。
  9. 根据权利要求1所述的方法，其特征在于，当所述无线通信设备包括双卡时，所述确定所述无线通信设备的天线工作的频段属于预设待提升的频段，具体包括：
    确定所述双卡为双接收通道的双卡双待时，且所述双卡的主卡和副卡均在单频段进行通信；
    判断所述主卡的单频段和所述副卡的单频段均属于所述预设待提升的频段。
  10. 根据权利要求6所述的方法，其特征在于，所述判断第i天线是否在工作，具体包括：通过判断当前工作频段的MIMO工作状态来确认所述第i天线是否在工作，当所述第i天线未工作时，设置所述第i天线的射频输入端的负载状态，且调整所述第i天线侧的开关或Tuner状态。
  11. 一种无线通信设备，其特征在于，包括权利要求1-5任一项所述的天线系统，还包括：SIM卡；所述SIM卡为单卡或双卡；
    所述SIM卡通信时通过所述天线系统收发信号。
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