CN111800160A - Electronic equipment - Google Patents
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- CN111800160A CN111800160A CN202010620830.XA CN202010620830A CN111800160A CN 111800160 A CN111800160 A CN 111800160A CN 202010620830 A CN202010620830 A CN 202010620830A CN 111800160 A CN111800160 A CN 111800160A
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- 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
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- 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
Abstract
The application discloses electronic equipment includes: a transceiver; a first antenna, a second antenna, a third antenna, and a fourth antenna; the antenna comprises a first radio frequency circuit, a second radio frequency circuit, a third radio frequency circuit and a fourth radio frequency circuit, wherein the first antenna and the second antenna are used in the electronic equipment to perform frequency division multiplexing transmission on transmitting signals and main set receiving signals of two frequency bands respectively, and the other two antennas are used to perform transmission on diversity receiving signals of the two frequency bands respectively.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an electronic device.
Background
In order to implement compatibility between 4G and 5G in devices such as a mobile phone, an antenna for signal transmission needs to support two frequency bands, and meanwhile, in order to implement frequency division duplex, an antenna is needed to transmit an uplink signal and a downlink signal together, so that the antenna needs to support sending and receiving of two signals with different frequencies in the same frequency band at the same time and also needs to support receiving of a signal in another frequency band.
Although the antenna itself has a certain bandwidth, one antenna needs to transmit signals of three frequencies at the same time, which results in poor transmission performance of the antenna at each frequency.
Disclosure of Invention
In view of the above, the present application provides an electronic device, comprising:
an electronic device, comprising:
a transceiver;
a first antenna, a second antenna, a third antenna, and a fourth antenna;
a first radio frequency circuit disposed between the transceiver and any one of the first and second antennas;
a second radio frequency circuit disposed between the transceiver and the other of the first antenna and the second antenna;
a third radio frequency circuit disposed between the transceiver and the third antenna;
a fourth radio frequency circuit disposed between the transceiver and the fourth antenna;
the first radio frequency circuit is used for transmitting an uplink signal of a first frequency band and transmitting a first downlink signal of the first frequency band; the signal frequency of the uplink signal of the first frequency band is different from that of the first downlink signal of the first frequency band;
the second radio frequency circuit is used for transmitting an uplink signal of a second frequency band and transmitting a first downlink signal of the second frequency band; the signal frequency of the uplink signal of the second frequency band is different from that of the first downlink signal of the second frequency band, and the first frequency band is different from the second frequency band;
the third radio frequency circuit is used for transmitting a second downlink signal of the first frequency band;
the fourth radio frequency circuit is configured to transmit a second downlink signal in the second frequency band, where the second downlink signal in the first frequency band and the second downlink signal in the second frequency band have different signal frequencies.
The electronic device preferably further includes:
a double pole double throw switch comprising: the first connecting end, the second connecting end, the third connecting end and the fourth connecting end;
the first connecting end is connected with the first antenna, and the second connecting end is connected with the first radio frequency circuit; the third connecting end is connected with the second antenna, and the fourth connecting end is connected with the second radio frequency circuit.
In the electronic device, it is preferable that the first radio frequency circuit includes a duplex filter composed of a transmission filter and a reception filter, wherein:
the transmitting filter in the first radio frequency circuit is used for filtering and transmitting the uplink signal of the first frequency band transmitted by the transceiver;
the receiving filter in the first rf circuit is configured to filter the first downlink signal in the first frequency band and transmit the filtered first downlink signal to the transceiver.
The electronic device preferably further includes:
and the first amplifier is arranged between the transmitting filter in the first radio frequency circuit and the transceiver and is used for amplifying the uplink signal of the first frequency band.
In the electronic device, it is preferable that the second rf circuit includes a duplex filter composed of a transmission filter and a reception filter, wherein:
the transmitting filter in the second radio frequency circuit is configured to perform filtering transmission on the uplink signal of the second frequency band transmitted by the transceiver;
the receiving filter in the second rf circuit is configured to filter the first downlink signal in the second frequency band and transmit the filtered first downlink signal to the transceiver.
The electronic device preferably further includes:
and the second amplifier is arranged between the transmitting filter in the second radio frequency circuit and the transceiver and is used for amplifying the uplink signal of the second frequency band.
The electronic device preferably further includes:
a first power dividing device disposed between the third antenna and the third radio frequency circuit;
the first power dividing device is further connected to a first target circuit, and the first target circuit is configured to perform first target signal transmission through the third antenna.
The electronic device preferably further includes:
the second power dividing equipment is arranged between the fourth antenna and the fourth radio frequency circuit;
the second power dividing device is further connected to a second target circuit, and the second target circuit is configured to perform second target signal transmission through the fourth antenna.
According to the above scheme, in the electronic device provided by the application, the first antenna and the second antenna are used for respectively performing frequency division multiplexing transmission on the transmitting signals and the main set receiving signals of the two frequency bands, and the other two antennas are used for respectively transmitting the diversity receiving signals of the two frequency bands, so that the antennas for transmitting the transmitting signals and the main set receiving signals are prevented from simultaneously transmitting the diversity receiving signals, the number of signals transmitted by the antennas is reduced, the antennas transmit signals of two signal frequencies at most simultaneously, and the transmission performance of the antennas in the signal transmission process in the electronic device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 2 to fig. 12 are schematic structural diagrams of an electronic device according to an embodiment of the present disclosure;
fig. 13-14 are schematic partial structural diagrams of an electronic device according to an embodiment of the present disclosure;
fig. 15-16 are schematic diagrams of antenna designs in a conventional handset, respectively;
fig. 17 is a schematic diagram of an antenna design suitable for a mobile phone according to the present invention;
fig. 18 is a partial schematic diagram of an antenna design suitable for a mobile phone according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a schematic structural diagram of an electronic device according to an embodiment of the present disclosure is provided, where the electronic device may be an electronic device, such as a mobile phone, having an antenna and a transceiver to facilitate signal transmission. The technical scheme in the embodiment is mainly used for improving the transmission performance of the antenna when multi-band signal transmission is realized in the electronic equipment.
Specifically, the electronic device in this embodiment may include the following structure:
the transceiver 1 is used for converting signals, for example, the transceiver 1 converts electrical signals in the electronic device into uplink signals capable of being transmitted through an antenna, or converts downlink signals received by the antenna into electrical signals recognizable by the electronic device, and so on.
A first antenna 2, a second antenna 3, a third antenna 4 and a fourth antenna 5; wherein the first antenna 2 and the second antenna 3 can simultaneously be a receiving antenna and a transmitting antenna, respectively, and the third antenna 4 and the fourth antenna 5 can both be receiving antennas. Of course, the electronic device may further include other antennas, such as other antennas that simultaneously serve as a receiving antenna and a transmitting antenna, and other antennas that individually serve as a receiving wire or an transmitting antenna.
A first radio frequency circuit 6, the first radio frequency circuit 6 being disposed between the transceiver 1 and either of the first antenna 2 and the second antenna 3. A second radio frequency circuit 7, the second radio frequency circuit 7 being arranged between the transceiver 1 and the other of the first antenna 2 and the second antenna 3.
As shown in fig. 1, the first rf circuit 6 is disposed between the transceiver 1 and the first antenna 2, at this time, the first rf circuit 6 is configured to transmit an uplink signal of a first frequency band and transmit the uplink signal to the first antenna 2 connected to the first rf circuit 6, the first antenna 2 transmits the uplink signal of the first frequency band, and in addition, the first rf circuit 6 is further configured to receive a first downlink signal of the first frequency band transmitted by the first antenna 2 and transmit the first downlink signal of the first frequency band to the transceiver 1. The first frequency band may be any frequency band supported by the first antenna, that is, any frequency band within an operating frequency range of the first antenna, such as a low frequency band, an intermediate frequency band, or a high frequency band in 4G or 5G, it should be noted that signal frequencies of the uplink signal of the first frequency band and the first downlink signal of the first frequency band are different, where the uplink signal of the first frequency band may be understood as a transmission signal on the first frequency band, and the first downlink signal of the first frequency band may be understood as a main set reception signal on the first frequency band, and signal frequencies of the transmission signal on the first frequency band and the main set reception signal are different.
Based on this, the second rf circuit 7 is disposed between the transceiver 1 and the second antenna 3, at this time, the second rf circuit 7 is configured to transmit an uplink signal in the second frequency band and transmit the uplink signal to the second antenna 3 connected to the second rf circuit 7, the second antenna 3 transmits the uplink signal in the second frequency band, and in addition, the second rf circuit 7 is further configured to receive a first downlink signal in the second frequency band transmitted by the second antenna 3 and transmit the first downlink signal in the second frequency band to the transceiver 1. The second frequency band may be any frequency band supported by the second antenna 3, i.e. any frequency band within the operating frequency range of the second antenna, such as a low frequency band, an intermediate frequency band or a high frequency band in 4G or 5G. It should be noted that the uplink signal of the second frequency band and the first downlink signal of the second frequency band have different signal frequencies, where the uplink signal of the second frequency band may be understood as a transmission signal on the second frequency band, and the first downlink signal on the second frequency band may be understood as a main set reception signal on the second frequency band.
Or, as shown in fig. 2, the second rf circuit 7 is disposed between the transceiver 1 and the first antenna 2, at this time, the second rf circuit 7 is configured to transmit an uplink signal in the first frequency band and transmit the uplink signal in the first frequency band to the first antenna 2 connected to the second rf circuit 7, and the first antenna 2 transmits the uplink signal in the first frequency band, and in addition, the second rf circuit 7 is further configured to receive a first downlink signal in the first frequency band transmitted by the first antenna 2 and transmit the first downlink signal in the first frequency band to the transceiver 1. The first frequency band may be any frequency band supported by the first antenna, that is, any frequency band within an operating frequency range of the first antenna, such as a low frequency band, an intermediate frequency band, or a high frequency band in 4G or 5G, it should be noted that signal frequencies of the uplink signal of the first frequency band and the first downlink signal of the first frequency band are different, where the uplink signal of the first frequency band may be understood as a transmission signal on the first frequency band, and the first downlink signal of the first frequency band may be understood as a main set reception signal on the first frequency band, and signal frequencies of the transmission signal on the first frequency band and the main set reception signal are different.
Based on this, the first radio frequency circuit 6 is disposed between the transceiver 1 and the second antenna 3, at this time, the first radio frequency circuit 6 is configured to transmit an uplink signal of a second frequency band and transmit the uplink signal of the second frequency band to the second antenna 3 connected to the first radio frequency circuit 6, the second antenna 3 transmits the uplink signal of the second frequency band, and in addition, the first radio frequency circuit 6 is further configured to receive a first downlink signal of the second frequency band transmitted by the second antenna 3 and transmit the first downlink signal of the second frequency band to the transceiver 1. The second frequency band may be any frequency band supported by the second antenna, i.e. any frequency band within the operating frequency range of the second antenna, such as a low frequency band, an intermediate frequency band or a high frequency band in 4G or 5G. It should be noted that the uplink signal of the second frequency band and the first downlink signal of the second frequency band have different signal frequencies, where the uplink signal of the second frequency band may be understood as a transmission signal on the second frequency band, and the first downlink signal on the second frequency band may be understood as a main set reception signal on the second frequency band, and the transmission signal on the second frequency band and the main set reception signal have different signal frequencies.
It should be noted that the first frequency band is different from the second frequency band, for example, the first frequency band is a low frequency band, and the second frequency band is an intermediate frequency band; or both the first frequency band and the second frequency band are low-frequency bands; or the first frequency band is a high-frequency band, and the second frequency band is a low-frequency band; alternatively, the first frequency band is a high frequency band, the second frequency band is an intermediate frequency band, and so on. The combination of the first frequency band and the second frequency band may be any combination of frequency bands. Of course, the first frequency band and the second frequency band are signal frequency bands that can be simultaneously supported by both the first antenna 2 and the second antenna 3.
In addition, the electronic device in this embodiment further includes:
a third rf circuit 8, where the third rf circuit 8 is disposed between the transceiver 1 and the third antenna 4, and the third rf circuit 8 is configured to transmit a second downlink signal of the first frequency band, where the second downlink signal of the first frequency band may be understood as a diversity reception signal on the first frequency band, and the signal frequencies of the main set reception signal and the diversity reception signal on the first frequency band are the same;
a fourth radio frequency circuit 9, the fourth radio frequency circuit 9 being arranged between the transceiver and the fourth antenna 5; the fourth rf circuit 9 is configured to transmit a second downlink signal in a second frequency band, where the second downlink signal in the second frequency band may be understood as a diversity reception signal in the second frequency band, and signal frequencies of a main set reception signal and a diversity reception signal in the second frequency band are the same;
it should be noted that the second downlink signal in the first frequency band and the second downlink signal in the second frequency band have different signal frequencies, that is, the signal frequencies of the diversity reception signals in the first frequency band and the second frequency band are different.
It can be seen from the foregoing solution that, in an electronic device provided in an embodiment of the present application, a first antenna and a second antenna are used in the electronic device to perform frequency division multiplexing transmission on a transmission signal and a main set reception signal of two frequency bands, and another two antennas are used to perform transmission on diversity reception signals of two frequency bands, so that the antennas that transmit the transmission signal and the main set reception signal are prevented from transmitting the diversity reception signals at the same time, and therefore the number of signals transmitted by the antennas is reduced, so that the antennas transmit signals of two signal frequencies at most at the same time, and the transmission performance of the antennas in the signal transmission process in the electronic device is improved.
In one implementation manner, in order to implement transmission switching between different frequency bands of the first antenna 2 and the second antenna 3, the electronic device may further be provided with the following structure, as shown in fig. 3:
a double pole, double throw switch 10 comprising: a first connecting end 11, a second connecting end 12, a third connecting end 13 and a fourth connecting end 14;
the first connecting end 11 is connected with the first antenna 2, and the second connecting end 12 is connected with the first radio frequency circuit 6; the third connection 13 is connected to the second antenna 3 and the fourth connection 14 is connected to the second rf circuit 7.
Based on this, under the condition that the first connection end 11 is connected to the second connection end 12 and the third connection end 14 is connected to the fourth connection end 14, as shown in fig. 4, the first antenna 2 is connected to the first radio frequency circuit 6, the second antenna 3 is connected to the second radio frequency circuit 7, at this time, the first radio frequency circuit 6 transmits the uplink signal of the first frequency band and transmits the uplink signal of the first frequency band to the first antenna 2 connected to the first radio frequency circuit 6, the first antenna 2 transmits the uplink signal of the first frequency band, and in addition, the first radio frequency circuit 6 also receives the first downlink signal of the first frequency band transmitted by the first antenna 2 and transmits the first downlink signal of the first frequency band to the transceiver 1. The second rf circuit 7 transmits the uplink signal of the second frequency band and transmits the uplink signal to the second antenna 3 connected to the second rf circuit 7, the second antenna 3 transmits the uplink signal of the second frequency band, and in addition, the second rf circuit 7 receives the first downlink signal of the second frequency band transmitted by the second antenna 3 and transmits the first downlink signal of the second frequency band to the transceiver 1.
Or, in the case that the first connection end 11 is connected to the fourth connection end 14 and the third connection end 13 is connected to the second connection end 12, as shown in fig. 5, the first antenna 2 is connected to the second radio frequency circuit 7, the second antenna 3 is connected to the first radio frequency circuit 6, at this time, the second radio frequency circuit 7 transmits the uplink signal of the first frequency band and transmits the uplink signal of the first frequency band to the first antenna 2 connected to the second radio frequency circuit 7, the first antenna 2 transmits the uplink signal of the first frequency band, and in addition, the second radio frequency circuit 7 also receives the first downlink signal of the first frequency band transmitted by the first antenna 2 and transmits the first downlink signal of the first frequency band to the transceiver 1. The first rf circuit 6 transmits the uplink signal of the second frequency band, and transmits the uplink signal to the second antenna 3 connected to the first rf circuit 6, the second antenna 3 transmits the uplink signal of the second frequency band, and in addition, the first rf circuit 6 also receives the first downlink signal of the second frequency band transmitted by the second antenna 3, and transmits the first downlink signal of the second frequency band to the transceiver 1.
In a specific implementation, the first rf circuit 6 may be a duplex filter composed of a transmitting filter 15 and a receiving filter 16, where:
the transmission filter 15 in the first radio frequency circuit 6 is configured to perform filtering transmission on the uplink signal of the first frequency band transmitted by the transceiver 1, and transmit the uplink signal of the first frequency band through the first antenna 2 or the second antenna 3, as shown in fig. 6 and 7, so as to implement signal transmission on the first frequency band through the first antenna 2 or the second antenna 3;
the receiving filter 16 in the first rf circuit 6 is configured to filter the first downlink signal of the first frequency band received by the first antenna 2 or the second antenna 3 and transmit the filtered first downlink signal to the transceiver 1, so as to implement receiving of the main set receiving signal on the first frequency band through the first antenna 2 or the second antenna 3.
Based on this, the following structure may also be included in the electronic device, as shown in fig. 8:
and a first amplifier 17 disposed between the transmission filter 15 in the first radio frequency circuit 6 and the transceiver 1, wherein the first amplifier 17 may be a multi-band amplifier, and is mainly used for amplifying the uplink signal of the first frequency band.
In a specific implementation, the second radio frequency circuit 7 may be a duplex filter consisting of a transmit filter 18 and a receive filter 19, wherein:
the transmission filter 18 in the second radio frequency circuit 7 is configured to filter and transmit the uplink signal of the second frequency band transmitted by the transceiver 1, and transmit the uplink signal of the second frequency band through the second antenna 3 or the first antenna 2, as shown in fig. 9 and 10, so as to implement signal transmission on the second frequency band through the second antenna 3 or the first antenna 2;
the receiving filter 19 in the second rf circuit 7 is configured to filter the first downlink signal of the second frequency band received by the second antenna 3 or the first antenna 2 and transmit the filtered first downlink signal to the transceiver 1, so as to implement receiving of the main set receiving signal on the second frequency band through the second antenna 3 or the first antenna 2.
Based on this, the following structure may also be included in the electronic device, as shown in fig. 11:
and a second amplifier 20, which is arranged between the transmitting filter 18 in the second radio frequency circuit 7 and the transceiver 1, wherein the second amplifier 20 may be a multiband amplifier, and is mainly used for amplifying the uplink signal of the second frequency band.
In a specific implementation, as shown in fig. 12, the third rf circuit 8 may be implemented as a receiving filter 21, configured to perform filtering transmission on the second downlink signal in the first frequency band, and transmit the second downlink signal to the transceiver 1, so as to implement reception of the diversity receiving signal in the first frequency band through the third antenna 4;
in addition, the fourth rf circuit 9 may be implemented as a receiving filter 22, configured to perform filtering transmission on the second downlink signal in the second frequency band, and transmit the second downlink signal to the transceiver 1, so as to implement reception of diversity receiving signals in the second frequency band through the fourth antenna 5.
In one implementation, the following structure may also be included in the electronic device, as shown in fig. 13:
the first power dividing device 23 is disposed between the third antenna 3 and the third radio frequency circuit 8, the first power dividing device 23 may be a power divider or a power dividing matching circuit, and based on this, the first power dividing device 23 is further connected to a first target circuit 24, and the first target circuit 23 is configured to perform first target signal transmission through the third antenna 3. The first target signal is a signal different from the second downlink signal of the first frequency band, and the function implemented by the first target circuit 24 is different from the function implemented by the downlink signal transmitted by the third antenna 3, for example, the first target circuit 24 is a functional circuit of a WiFi module, and the first target circuit 24 implements other functions, such as a WiFi function, by multiplexing the third antenna 4 with the transceiver 1.
In one implementation, the following structure may also be included in the electronic device, as shown in fig. 14:
the second power dividing device 25 is disposed between the fourth antenna 5 and the fourth rf circuit 9, the second power dividing device 25 may be a power divider or a power dividing matching circuit, and based on this, the second power dividing device 25 is further connected to a second target circuit 26, and the second target circuit 26 is configured to perform second target signal transmission through the fourth antenna 5. The second target signal is a signal different from the second downlink signal in the second frequency band, and the function realized by the second target circuit 26 is different from the function realized by the downlink signal transmitted by the fourth antenna 5, for example, the second target circuit 26 is a function circuit of a Global Positioning System (GPS) (global positioning system) module, and the second target circuit 26 realizes other functions such as a GPS function by multiplexing the fourth antenna 4 with the transceiver 1.
That is to say, in order to separate the transmission of the diversity reception signal in one frequency band from the transmission signal and the host reception signal in the other frequency band, the electronic device in this embodiment may multiplex antennas capable of implementing other functions in the electronic device by providing a power divider or a power division matching circuit, and further, in the case where the first antenna and the second antenna implement the transmission of the transmission signal and the host reception signal in the two frequency bands, implement the transmission of the diversity reception signal in the two frequency bands by the multiplexed third antenna and the multiplexed fourth antenna.
It should be noted that, in this embodiment, an implementation scheme is taken as an example that four antennas are used to implement frequency division multiplexing signal transmission on two frequency bands, and based on the inventive idea of the present application, the technical scheme in this embodiment is also applicable to implement frequency division multiplexing signal transmission on three frequency bands or more. For example, 6 antennas may be provided in the electronic device, where three antennas are used for transmitting transmit signals and main set receive signals on three frequency bands, and the other three antennas are used for transmitting diversity receive signals on three frequency bands; as another example, 8 antennas may be provided in the electronic device, wherein four antennas are respectively used for transmitting the transmission signals and the main set reception signals on four frequency bands, and the other four antennas are respectively used for transmitting the diversity reception signals on three frequency bands, and so on. That is, in the present application, the same number of antennas as the frequency band concerned are provided in the electronic device to transmit the transmission signal and the main set reception signal in the corresponding frequency band, and the same number of antennas as the frequency band concerned or the same number of antennas as the frequency band concerned that realize other functions in the multiplexing electronic device may be additionally provided to transmit the diversity transmission signal in the corresponding frequency band, so that signals of two frequencies are transmitted at most simultaneously on each antenna, thereby improving the transmission performance of the antenna.
Taking 5G mobile phones as an example, with the development of 5G technologies, the design of mobile phone terminals is more and more complex, and most 5G mobile phones currently support a Non-independent networking NSA (Non-standby phone) function, that is, a random access endec (eutran dual connectivity) function of simultaneous dual connectivity and concurrent communication between 4G and 5G in the mobile phones. Two antenna designs are common in cell phones, as shown in fig. 15 and 16.
In fig. 15 and 16, a denotes a frequency band a, B denotes a frequency band B, a and B may correspond to frequency bands of 4G and 5G, respectively, or to frequency bands of 5G and 4G, respectively; TX denotes a transmission signal, RX1 denotes a main set reception signal, and RX2 denotes a diversity reception signal; TX for a represents the transmitted signal for band a, RX1 for a represents the main set received signal for band a, and RX2 for a represents the diversity received signal for band a.
Wherein, the TX frequency is different from the RX frequency, and the RX1 frequency is the same as the RX2 frequency. The frequencies of a and B are also different. Namely, the TX of a, the TX of B, the RX1 of a and the RX1 of B are signals with four different frequencies, the RX1 of a has the same frequency as the RX2 of a, and the RX1 of B has the same frequency as the RX2 of B.
A frequency range between 600MHz and 960MHz is defined as a low frequency, and a frequency range between 1400MHz and 2200MHz is defined as a medium frequency, as defined by 3GPP (3rd generation partnershirproject); the frequency range between 2300MHz and 2690MHz is defined as high frequency.
In the antenna design scheme in fig. 15, two antennas t1 and t2 are provided in the handset, each antenna supports a frequency band a and a frequency band B corresponding to 4G and 5G, respectively, an antenna switch and a quadplexer are provided between each antenna and the transceiver, respectively, and a multi-band amplifier is provided on a link for signal transmission between the quadplexer and the transceiver, so that the quadplexer can implement the combination of the intermediate frequency and the intermediate frequency or the low frequency and the low frequency of the endec.
In the antenna design scheme in fig. 16, two antennas t1 and t2 are provided in the mobile phone, each antenna supports a frequency band a and a frequency band B corresponding to 4G and 5G, an antenna switch and a duplexer are provided between each antenna and the transceiver, respectively, and a multi-band amplifier is provided on a link for signal transmission between the duplexer and the transceiver, so that low-frequency and intermediate-frequency, low-frequency and high-frequency, or intermediate-frequency and high-frequency endec combination is realized by adding a power divider or a power amplifier circuit to the two duplexers. In the above two antenna designs, when each endec operates in combination, at least six signals, namely, TX of a, TX of B, RX1 of a, RX1 of B, RX2 of a, and RX2 of B, need to be transmitted, so that 3 signals with different frequencies exist at the same time at t1 and t2, because the antenna itself has a certain bandwidth, and if multiple frequencies are supported at the same time, it cannot be guaranteed that the antenna has good antenna performance at each frequency.
In order to solve the problem of poor performance of the antenna, a double-pole double-throw switch is added in the mobile phone in the application, a duplexer and a power amplifier of one frequency band, such as a multi-band amplifier 1, are combined, a duplexer and a power amplifier of the other frequency band, such as a multi-band amplifier 2, are combined, and the other two antennas t3 and t4 are added to perform diversity reception through a receiving filter, so that the performance of the antennas t1 and t2 for performing signal transmission and main set reception is improved, and meanwhile, the design cost can be reduced.
As shown in fig. 17, in the mobile phone, a double-pole double-throw switch is adopted, so that the ports c1-c2 and c3-c4 can be simultaneously turned on, and if this is a state a, the ports c1-c4 and c2-c3 can be simultaneously turned on, and if this is a state b. In state a, signals of TX of a and RX1 of a are transmitted and received through antenna t1, and signals of TX of B and RX1 of B are transmitted and received through antenna t 2; in state B, signals of TX of B and RX1 of B are transmitted and received through antenna t1, and signals of TX of a and RX1 of a are transmitted and received through antenna t 2; thus, when the antenna t1 and the antenna t2 work, only two frequency signals need to be supported respectively, and the efficiency of the two antennas is maximized. Meanwhile, the antenna t3 and the antenna t4 are added for receiving the RX2 of a and the RX2 of B, respectively, and the antenna t3 and/or the antenna t4 can be combined with other functional circuits to multiplex the same antenna through a power divider or a power division matching circuit, as shown in fig. 18.
Therefore, the performance of the antennas t1 and t2 can be fully exerted on the mobile phone in the application, the performance of TX of A, RX1 of A, TX of B and RX1 of B is improved, different combinations of A and B can be flexibly configured, and the antenna design framework in the application is particularly suitable for ENDC combination of low frequency and low frequency aiming at the characteristic of narrow bandwidth of a low-frequency antenna.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An electronic device, comprising:
a transceiver;
a first antenna, a second antenna, a third antenna, and a fourth antenna;
a first radio frequency circuit disposed between the transceiver and any one of the first and second antennas;
a second radio frequency circuit disposed between the transceiver and the other of the first antenna and the second antenna;
a third radio frequency circuit disposed between the transceiver and the third antenna;
a fourth radio frequency circuit disposed between the transceiver and the fourth antenna;
the first radio frequency circuit is used for transmitting an uplink signal of a first frequency band and transmitting a first downlink signal of the first frequency band; the signal frequency of the uplink signal of the first frequency band is different from that of the first downlink signal of the first frequency band;
the second radio frequency circuit is used for transmitting an uplink signal of a second frequency band and transmitting a first downlink signal of the second frequency band; the signal frequency of the uplink signal of the second frequency band is different from that of the first downlink signal of the second frequency band, and the first frequency band is different from the second frequency band;
the third radio frequency circuit is used for transmitting a second downlink signal of the first frequency band;
the fourth radio frequency circuit is configured to transmit a second downlink signal in the second frequency band, where the second downlink signal in the first frequency band and the second downlink signal in the second frequency band have different signal frequencies.
2. The electronic device of claim 1, further comprising:
a double pole double throw switch comprising: the first connecting end, the second connecting end, the third connecting end and the fourth connecting end;
the first connecting end is connected with the first antenna, and the second connecting end is connected with the first radio frequency circuit; the third connecting end is connected with the second antenna, and the fourth connecting end is connected with the second radio frequency circuit.
3. The electronic device of claim 1, the first radio frequency circuit comprising a duplex filter consisting of a transmit filter and a receive filter, wherein:
the transmitting filter in the first radio frequency circuit is used for filtering and transmitting the uplink signal of the first frequency band transmitted by the transceiver;
the receiving filter in the first rf circuit is configured to filter the first downlink signal in the first frequency band and transmit the filtered first downlink signal to the transceiver.
4. The electronic device of claim 3, further comprising:
and the first amplifier is arranged between the transmitting filter in the first radio frequency circuit and the transceiver and is used for amplifying the uplink signal of the first frequency band.
5. The electronic device of claim 1, the second radio frequency circuitry comprising a duplex filter consisting of a transmit filter and a receive filter, wherein:
the transmitting filter in the second radio frequency circuit is configured to perform filtering transmission on the uplink signal of the second frequency band transmitted by the transceiver;
the receiving filter in the second rf circuit is configured to filter the first downlink signal in the second frequency band and transmit the filtered first downlink signal to the transceiver.
6. The electronic device of claim 5, further comprising:
and the second amplifier is arranged between the transmitting filter in the second radio frequency circuit and the transceiver and is used for amplifying the uplink signal of the second frequency band.
7. The electronic device of claim 1, further comprising:
a first power dividing device disposed between the third antenna and the third radio frequency circuit;
the first power dividing device is further connected to a first target circuit, and the first target circuit is configured to perform first target signal transmission through the third antenna.
8. The electronic device of claim 1, further comprising:
the second power dividing equipment is arranged between the fourth antenna and the fourth radio frequency circuit;
the second power dividing device is further connected to a second target circuit, and the second target circuit is configured to perform second target signal transmission through the fourth antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010620830.XA CN111800160A (en) | 2020-06-30 | 2020-06-30 | Electronic equipment |
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| CN202010620830.XA CN111800160A (en) | 2020-06-30 | 2020-06-30 | Electronic equipment |
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| CN111800160A true CN111800160A (en) | 2020-10-20 |
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| CN202010620830.XA Pending CN111800160A (en) | 2020-06-30 | 2020-06-30 | Electronic equipment |
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Application publication date: 20201020 |