CN117118472A

CN117118472A - Radio frequency circuit, antenna device and electronic equipment

Info

Publication number: CN117118472A
Application number: CN202211237075.2A
Authority: CN
Inventors: 冯旭
Original assignee: TCL Communication Ningbo Ltd
Current assignee: TCL Communication Ningbo Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-11-24

Abstract

A radio frequency circuit, an antenna device and an electronic device include: the switch module comprises a plurality of first input ends for transmitting signals of a first frequency band, a plurality of second input ends for transmitting signals of a second frequency band, a plurality of first output ends and a plurality of second output ends, wherein each first input end can be used for switching on different first output ends, and each second input end can be used for switching on different second output ends; in the first frequency divider, the second connecting end is connected with a first input end, and the third connecting end is connected with a second input end; in the second frequency divider, the sixth connecting end is connected with the other first input end, and the seventh connecting end is connected with the other second input end; the first antenna is connected with the first connecting end; the second antenna is connected with the fifth connecting end; the first frequency divider is capable of dividing the signal transmitted by the first antenna into a signal of a first frequency band and a signal of a second frequency band, and the second frequency divider is capable of dividing the signal transmitted by the second antenna into a signal of the first frequency band and a signal of the second frequency band.

Description

Radio frequency circuit, antenna device and electronic equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a radio frequency circuit, an antenna apparatus, and an electronic device.

Background

With the development of communication technology, electronic devices such as smartphones are capable of realizing more and more functions, and communication modes of the electronic devices are also more diversified. It will be appreciated that each communication mode of the electronic device requires a corresponding antenna to support, so that the efficiency of transmitting radio frequency signals by the antenna is also increasing, and how to design the radio frequency circuit to improve the radiation performance of the antenna is a difficult problem.

Disclosure of Invention

The embodiment of the application provides a radio frequency circuit, an antenna device and electronic equipment, which can improve the radiation performance of an antenna.

In a first aspect, an embodiment of the present application provides a radio frequency circuit, including:

the switch module comprises a plurality of first input ends, a plurality of second input ends, a plurality of first output ends and a plurality of second output ends, wherein the first input ends are used for transmitting signals of a first frequency band, the second input ends are used for transmitting signals of a second frequency band, each first input end can be used for switching on different first output ends, and each second input end can be used for switching on different second output ends;

the first frequency divider comprises a first connecting end, a second connecting end and a third connecting end, wherein the second connecting end is connected with one first output end, and the third connecting end is connected with one second output end;

The second frequency divider comprises a fifth connecting end, a sixth connecting end and a seventh connecting end, wherein the sixth connecting end is connected with the other first output end, and the seventh connecting end is connected with the other second output end;

the first antenna is connected with the first connecting end;

the second antenna is connected with the fifth connecting end;

the first frequency divider can aggregate signals of a first frequency band and a second frequency band and transmit the signals through a first antenna, and the second frequency divider can aggregate signals of the first frequency band and the second frequency band and transmit the signals through a second antenna.

Optionally, the switch module includes:

a first switch including two first input ends and two first output ends, wherein each first input end can be switched on with a different first output end;

and the second switch comprises two second input ends and two second output ends, and each second input end can be used for switching on a different second output end.

Optionally, the radio frequency circuit further includes:

the radio frequency transceiver is connected with the first switch and the second switch and can transmit signals of the first frequency band and signals of the second frequency band;

The radio frequency chip is connected with the first switch and the second switch, and can acquire the signal intensity of the signals transmitted by the first antenna and the second antenna, and control the first switch and the second switch according to the signal intensity so as to maximize the signal intensity of the signals transmitted by the first antenna and the second antenna.

Optionally, the radio frequency chip is further configured to:

controlling each first input end of the first switch to be conducted with a different first output end, and controlling each second input end of the second switch to be conducted with a different second output end, so that the first switch and the second switch are in different conducting states;

acquiring a plurality of signal intensities of the first antenna and the second antenna in different conducting states of the first switch and the second switch;

acquiring a corresponding target conduction state of the largest one of the plurality of signal intensities;

and controlling the first switch and the second switch to be in the target conduction state.

Optionally, the first antenna is used as one of a main set antenna and a diversity antenna of the first frequency band, and is used as one of the main set antenna or the diversity antenna of the second frequency band;

The second antenna is used as the other of the main set antenna and the diversity antenna of the first frequency band, and is used as the other of the main set antenna or the diversity antenna of the second frequency band.

Optionally, the first switch and the second switch are arranged at intervals, a first wiring is arranged between the first switch and the second connecting end, a second wiring is arranged between the second switch and the third connecting end, and the first wiring and the second wiring are arranged in an isolated manner;

a third wiring is arranged between the second switch and the sixth connecting end, a fourth wiring is arranged between the second switch and the seventh connecting end, and the third wiring and the fourth wiring are arranged in an isolated mode.

Optionally, each first input end is grounded through a first inductor and a second inductor, and a first resistor is connected between the first inductor and the second inductor; each second input end is grounded through a third inductor and a fourth inductor respectively, and a second resistor is connected between the third inductor and the fourth inductor.

Optionally, the switch module further includes:

and the third switch comprises 2 third input ends and 2 third output ends, each third input end can be switched on with different third output ends, and the 2 third input ends are used for transmitting signals of a third frequency band.

Optionally, the first frequency divider further includes a fourth connection end, and the fourth connection end is connected to one third input end;

the second frequency divider further comprises an eighth connecting end, and the eighth connecting end is connected with the other third input end;

the first frequency divider can divide the signal transmitted by the first antenna into the signal of the first frequency band, the signal of the second frequency band and the signal of the third frequency band, and the second frequency divider can divide the signal transmitted by the second antenna into the signal of the first frequency band, the signal of the second frequency band and the signal of the third frequency band.

Optionally, the first switch, the second switch and the third switch are arranged at intervals, a first wire is arranged between the first switch and the second connection end, a second wire is arranged between the second switch and the third connection end, and the first wire and the second wire are arranged in an isolated manner;

a third wiring is arranged between the second switch and the sixth connecting end, a fourth wiring is arranged between the second switch and the seventh connecting end, and the third wiring and the fourth wiring are arranged in an isolated mode;

a fifth wiring is arranged between the third switch and the fourth connecting end, a sixth wiring is arranged between the third switch and the eighth connecting end, and the fifth wiring and the sixth wiring are arranged in an isolated mode.

In a second aspect, an embodiment of the present application further provides an antenna apparatus, where the antenna apparatus includes a radio frequency circuit as described in any one of the foregoing.

In a third aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a circuit board, and a radio frequency circuit is disposed on the circuit board, and the radio frequency circuit is any one of the radio frequency circuits described above.

In the embodiment of the application, the first frequency divider can divide the signal transmitted by the first antenna into the signal of the first frequency band and the signal of the second frequency band, the second frequency divider can divide the signal transmitted by the second antenna into the signal of the first frequency band and the signal of the second frequency band, the first frequency divider and the second frequency divider are respectively connected with a plurality of different first input ends and a plurality of different second input ends of the switch module, the plurality of first input ends and the plurality of second input ends of the switch module can be flexibly combined with a plurality of first output ends and a plurality of second output ends, and the plurality of first output ends and the plurality of second output ends of the switch module can be respectively connected with different processing circuits, so that the first antenna and the second antenna can respectively form the transmission of the combination of the signals of the plurality of first frequency bands and the signals of the second frequency bands. The first antenna and the second antenna can respectively transmit the combination of the signals of different first frequency bands and the signals of different second frequency bands, namely, the first antenna and the second antenna can flexibly select the combination of the signals of different first frequency bands and the signals of different second frequency bands according to different use environments, so that the antenna can have better radiation performance under different use environments, and the efficiency of transmitting radio frequency signals by the antenna is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a second structure of a radio frequency circuit according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a third structure of a radio frequency circuit according to an embodiment of the present application.

Fig. 4 is a circuit diagram of the rf circuit shown in fig. 3.

Fig. 5 is a schematic diagram of a fourth structure of a radio frequency circuit according to an embodiment of the present application.

Fig. 6 is a circuit diagram of the rf circuit shown in fig. 5.

Fig. 7 is a schematic diagram of a first structure of an electronic device according to an embodiment of the present application;

fig. 8 is a schematic diagram of a second structure of an electronic device according to an embodiment of the present application.

Detailed Description

Referring to the drawings, wherein like reference numerals refer to like elements throughout, the principles of the present application are illustrated in a suitable computing environment. The following description is based on illustrative embodiments of the application and should not be taken as limiting other embodiments of the application not described in detail herein.

The embodiment of the application provides a radio frequency circuit, an antenna device and electronic equipment. The antenna device may include a radio frequency circuit, where the antenna device may be disposed on an electronic device, and the radio frequency circuit may enable the antenna device to implement a wireless communication function of the electronic device, for example, the radio frequency circuit may enable the antenna device to transmit a wireless fidelity (Wireless Fidelity abbreviated as Wi-Fi) signal, a global positioning system (Global Positioning System abbreviated as GPS) signal, a fourth Generation mobile communication technology (3 th-Generation abbreviated as 3G), a third Generation mobile communication technology (4 th-Generation abbreviated as 4G), a fifth Generation mobile communication technology (5 th-Generation abbreviated as 5G), a near field communication (Near field communication abbreviated as NFC) signal, a UWB signal, an NFC signal, and so on.

Among the various communication technologies, carrier aggregation (carrier aggregation, CA) is a key technology in LTE a. In order to meet the requirements of single-user peak rate and system capacity improvement, one of the most straightforward approaches is to increase the system transmission bandwidth. In the design of a radio frequency CA circuit, attention is often paid to the circuit design of the frequency multiplication interference CA, and if the circuit design is not good, the sensitivity of the frequency multiplication point in the CA working mode is poor. CA double interference can be described as: when the low-frequency band works as the PCC band in the CA working mode, if the receiving frequency of the frequency band in the SCC is just at the frequency multiplication harmonic point of the PCC frequency band, the frequency band harmonic of the PCC can interfere with the receiving performance of the SCC frequency band, and the direct influence is that the SCC sensitivity can be poor, and the network speed is poor in the CA working mode.

The following steps are as follows: CA combination of common CA double interference: ca_1A_28A,CA_4A_12A, CA _3a_8a, ca_7a_8a, ca_12a_66a.

The following tables 1 and 2 show the band frequencies:

table 1:

table 2:

the harmonic frequencies of LB are shown in table 3 below:

table 3:

table 4 below shows the frequency doubling interference relationship when LB as PCC and MHB as SCC in CA mode:

table 4:

among various communication technologies, besides the carrier aggregation technology, for example, the ENDC technology, which is a dual connection technology of an LTE signal and a 5G signal, a terminal may be connected to a 4G base station and a 5G base station at the same time and support transmission of the LTE signal and the 5G signal at the same time.

The implementation of various communication technologies needs corresponding antennas to support, so that the requirements on radio frequency performance of the antennas under various use scenes are also higher and higher.

Referring to fig. 1, fig. 1 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present application. The radio frequency circuit 100 may include a switch module 110, a first frequency divider 120, a second frequency divider 130, a first antenna 140, and a second antenna 150.

The switch module 110 includes a plurality of first input terminals, a plurality of second input terminals, a plurality of first output terminals and a plurality of second output terminals, wherein the plurality of first input terminals are used for transmitting signals of a first frequency band, the plurality of second input terminals are used for transmitting signals of a second frequency band, each first input terminal can switch on a different first output terminal, and each second input terminal can switch on a different second output terminal.

The switch module 110 may be a multiple-input multiple-output (XPXT) switch, and the switch module 110 may include a plurality of input interfaces, such as a plurality of first input terminals and a plurality of second input terminals, to simultaneously receive a first frequency band signal and a second frequency band signal; the switch module 110 may further include a plurality of output interfaces, for example, a plurality of first output terminals and a plurality of second output terminals, so that the switch module 110 may form a plurality of first input terminals with a plurality of first output terminals respectively, and a plurality of second input terminals with a plurality of second output terminals respectively, so that the switch module 110 may form a multipath channel to transmit multipath signals at the same time.

The first frequency divider 120 includes a first connection end e, a second connection end f and a third connection end g, the second connection end f is connected with a first input end, the third connection end g is connected with a second input end, the first antenna 140 is connected with the first connection end e, and the first frequency divider 120 can divide a signal transmitted by the first antenna 140 into a signal of a first frequency band and a signal of a second frequency band.

The second frequency divider 130 includes a fifth connection end h, a sixth connection end i and a seventh connection end j, where the sixth connection end i is connected to the other first input end, the seventh connection end j is connected to the other second input end, the second antenna 150 is connected to the fifth connection end h, and the second frequency divider 130 can divide the signal transmitted by the second antenna 150 into a signal of the first frequency band and a signal of the second frequency band.

The switch module 110 includes 2 first input terminals a, respectively: the first input terminal a1, the first input terminal a2, the first input terminal a1 and the first input terminal a2 are used for transmitting signals with low frequency. The switch module 110 further includes 2 first output terminals c, which are respectively: a first output terminal c1 and a first output terminal c2.

By switching the on state of the switch module 110, the first input end a1 can be connected to the first output end c1 in a conducting manner, and the first input end a2 can be connected to the first output end c2 in a conducting manner; alternatively, the first input terminal a1 may be connected to the first output terminal c2 in a conductive manner, and the first input terminal a2 may be connected to the first output terminal c1 in a conductive manner.

The switch module 110 includes 2 second input terminals b, which are respectively: the second input terminal b1, the second input terminal b2, the second input terminal b1 and the second input terminal b2 are used for transmitting signals with medium and high frequencies. The switch module 110 further includes 2 second output terminals d, which are respectively: a second output terminal d1 and a second output terminal d2. The second input end b1 can be connected to the second output end d1 in a conducting manner, and the second input end b2 can be connected to the second output end d2 in a conducting manner by switching the conducting state of the switch module 110; alternatively, the second input terminal b1 may be connected to the second output terminal d2 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d1 in a conductive manner.

Illustratively, the first input terminal a1 and the second input terminal b1 are connected to the first frequency divider 120, and the second input terminal a2 and the second input terminal b2 are connected to the second frequency divider 130.

In the first conductive state of the switch module 110, the first input terminal a1 may be connected to the first output terminal c1 in a conductive manner, the first input terminal a2 may be connected to the first output terminal c2 in a conductive manner, the second input terminal b1 may be connected to the second output terminal d1 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d2 in a conductive manner. The first frequency divider 120 divides the signal transmitted by the first antenna 140 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input to the switch module 110 through the first input terminal a1 and is transmitted to the first output terminal c1, and the signal of the second frequency band is input to the switch module 110 through the second input terminal b1 and is transmitted to the second output terminal d1. The second frequency divider 130 divides the signal transmitted by the second antenna 150 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input into the switch module 110 through the first input terminal a2 and is transmitted to the first output terminal c2, and the signal of the second frequency band is input into the switch module 110 through the second input terminal b2 and is transmitted to the second output terminal d2.

In the second conductive state of the switch module 110, the first input terminal a1 may be connected to the first output terminal c1 in a conductive manner, the first input terminal a2 may be connected to the first output terminal c2 in a conductive manner, the second input terminal b1 may be connected to the second output terminal d2 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d1 in a conductive manner. The first frequency divider 120 divides the signal transmitted by the first antenna 140 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input to the switch module 110 through the first input terminal a1 and is transmitted to the output terminal c1, and the signal of the second frequency band is input to the switch module 110 through the second input terminal b1 and is transmitted to the second output terminal d2. The second frequency divider 130 divides the signal transmitted by the second antenna 150 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input into the switch module 110 through the first input terminal a2 and is transmitted to the first output terminal c2, and the signal of the second frequency band is input into the switch module 110 through the second input terminal b2 and is transmitted to the second output terminal d1.

In the third conductive state of the switch module 110, the first input terminal a1 may be connected to the first output terminal c2 in a conductive manner, the first input terminal a2 may be connected to the first output terminal c1 in a conductive manner, the second input terminal b1 may be connected to the second output terminal d1 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d2 in a conductive manner. The first frequency divider 120 divides the signal transmitted by the first antenna 140 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input to the switch module 110 through the first input terminal a1 and is transmitted to the first output terminal c2, and the signal of the second frequency band is input to the switch module 110 through the second input terminal b1 and is transmitted to the second output terminal d1. The second frequency divider 130 divides the signal transmitted by the second antenna 150 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input into the switch module 110 through the first input terminal a2 and is transmitted to the first output terminal c1, and the signal of the second frequency band is input into the switch module 110 through the second input terminal b2 and is transmitted to the first output terminal d2.

In the fourth conductive state of the switch module 110, the first input terminal a1 may be connected to the first output terminal c2, the first input terminal a2 may be connected to the first output terminal c1, the second input terminal b1 may be connected to the second output terminal d2, and the second input terminal b2 may be connected to the second output terminal d1. The first frequency divider 120 divides the signal transmitted by the first antenna 140 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input to the switch module 110 through the first input terminal a1 and is transmitted to the first output terminal c2, and the signal of the second frequency band is input to the switch module 110 through the second input terminal b1 and is transmitted to the second output terminal d2. The second frequency divider 130 divides the signal transmitted by the second antenna 150 into the signal of the first frequency band and the signal of the second frequency band, the signal of the first frequency band is input into the switch module 110 through the first input terminal a2 and is transmitted to the first output terminal c1, and the signal of the second frequency band is input into the switch module 110 through the first input terminal b2 and is transmitted to the second output terminal d1.

In this embodiment, the first frequency divider 120 may divide the signal transmitted by the first antenna 140 into the signal of the first frequency band and the signal of the second frequency band, the second frequency divider 130 may divide the signal transmitted by the second antenna 150 into the signal of the first frequency band and the signal of the second frequency band, the first frequency divider 120 and the second frequency divider are respectively connected to a plurality of different first input ends and a plurality of different second input ends of the switch module 110, the plurality of first input ends and the plurality of second input ends of the switch module 110 may be flexibly combined with the plurality of first output ends and the plurality of second output ends, and the plurality of first output ends and the plurality of second output ends of the switch module 110 may be respectively connected to different processing circuits, so that the first antenna 140 and the second antenna 150 may respectively form transmission of a combination of the signals of the plurality of first frequency bands and the signals of the second frequency bands. The first antenna 140 and the second antenna 150 can respectively transmit the combination of the signals in the first frequency band and the signals in the second frequency band, that is, the first antenna 140 and the second antenna 150 can flexibly select and transmit the combination of the signals in the first frequency band and the signals in the second frequency band according to different use environments, so that the antenna can have better radiation performance in different use environments, and the efficiency of transmitting radio frequency signals by the antenna is improved.

The signals in the first frequency band and the signals in the second frequency band are different, and the signals in the first frequency band are low-frequency signals and the signals in the second frequency band are middle-high-frequency signals. The first input terminal a1 and the first input terminal a2 may transmit signals of different first frequency bands, for example, the first input terminal a1 and the first input terminal a2 may transmit different low frequency signals, such as a low frequency main set signal and a low frequency diversity signal. The second input terminal b1 and the second input terminal b2 may transmit different signals of medium and high frequencies, such as a medium and high frequency main set signal and a medium and high frequency diversity signal. So that the first antenna 140 and the second antenna 150 can selectively transmit any combination of different low frequency signals and different medium and high frequency signals, respectively.

Referring to fig. 2 and fig. 3, fig. 2 is a schematic diagram of a second structure of a radio frequency circuit according to an embodiment of the present application, and fig. 3 is a schematic diagram of a third structure of the radio frequency circuit according to an embodiment of the present application. Illustratively, the switch module 110 may include: a first switch 111 and a second switch 112, the first switch 111 including two first input terminals and two first output terminals, each first input terminal being capable of switching on a different first output terminal; the second switch 112 includes two second input terminals and two second output terminals, each of which is capable of switching on a different second output terminal. For example, the first switch 111 and the second switch 112 may be Double Pole Double Throw (DPDT) switches.

For example, the first switch 111 includes 2 first input terminals, respectively: a first input terminal a1 and a first input terminal a2; and further comprising 2 first output terminals, respectively: a first output terminal c1 and a first output terminal c2. By switching the on state of the second switch 112, the first input terminal a1 and the first input terminal a2 may be selectively connected to the first output terminal c1 and the first output terminal c2, for example, the first input terminal a1 may be connected to the first output terminal c1 in a conductive manner, and the first input terminal a2 may be connected to the first output terminal c2 in a conductive manner; alternatively, the first input terminal a1 may be connected to the first output terminal c2 in a conductive manner, and the first input terminal a2 may be connected to the first output terminal c1 in a conductive manner.

The second switch 112 includes 2 second input terminals, respectively: a second input terminal b1 and a second input terminal b2. The second switch 112 further includes 2 second output terminals, respectively: a second output terminal d1 and a second output terminal d2. By switching the on state of the second switch 112, the second input terminal b1 and the second input terminal b2 may be selectively connected to the second output terminal d1 and the second output terminal d2, for example, the second input terminal b1 may be connected to the second output terminal d1 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d2 in a conductive manner; alternatively, the second input terminal b1 may be connected to the second output terminal d2 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d1 in a conductive manner.

The radio frequency circuit further comprises a radio frequency transceiver 160, the radio frequency transceiver 160 being connected to the first switch 111 and the second switch 112. The radio frequency transceiver 160 may also implement carrier aggregation of the first frequency band and the second frequency band signals. The radio frequency transceiver 160 includes a plurality of radio frequency transmit ports and a plurality of radio frequency receive ports such that the radio frequency transceiver 160 is capable of receiving signals in a first frequency band and signals in a second frequency band, and the radio frequency transceiver 160 may also transmit signals in the first frequency band and signals in the second frequency band.

It can be understood that the first output end c1 and the first output end c2 of the first switch 111 may be respectively connected to different processing circuits, and are respectively connected to different radio frequency receiving ports of the radio frequency transceiver 160, for example, the first output end c1 is fixedly connected to the radio frequency receiving port e1 of the radio frequency transceiver 160 through the first processing circuit, the radio frequency receiving port e1 is a main set signal receiving port of the first frequency band, the second output end c2 is fixedly connected to the radio frequency receiving port e2 of the radio frequency transceiver 160 through the second processing circuit, the radio frequency receiving port e2 is a diversity signal receiving port of the first frequency band, the antenna conducted with the first output end c1 may be used as a main set antenna of the first frequency band, the received radio frequency signal includes the main set signal of the first frequency band in the spatial base station, the antenna conducted with the second output end c2 may be used as a diversity antenna of the first frequency band in the spatial base station, and the received radio frequency signal includes the diversity signal of the first frequency band in the spatial base station. The second output end d1 and the second output end d2 of the second switch 112 may be respectively connected to different processing circuits, and are respectively connected to different radio frequency receiving ports of the radio frequency transceiver 160, for example, the second output end d1 is fixedly connected to a radio frequency receiving port e3 of the radio frequency transceiver 160 through the second processing circuit, the radio frequency receiving port e3 is a main set signal receiving port of the second frequency band, the second output end d2 is fixedly connected to a radio frequency receiving port e4 of the radio frequency transceiver 160 through the second processing circuit, the radio frequency receiving port e4 is a diversity signal receiving port of the second frequency band, the antenna conducted with the second output end d1 may be used as a main set antenna of the second frequency band, the received radio frequency signal includes a main set signal of the second frequency band in the spatial base station, the antenna conducted with the second output end d2 may be used as a diversity antenna of the second frequency band, and the received radio frequency signal includes a diversity signal of the second frequency band in the spatial base station.

By flexibly switching the two first input ends and the two first output ends of the first switch 111 and flexibly switching the two second input ends and the two second output ends of the second switch 112, the first antenna 140 and the second antenna 150 can be switched to be respectively used as a main set or diversity antenna of a first frequency band and correspondingly receive the main set or diversity signal of the first frequency band, and the first antenna 140 and the second antenna 150 are switched to be respectively used as the main set or diversity antenna of a second frequency band and correspondingly receive the main set or diversity signal of the second frequency band, so that the first antenna 140 and the second antenna 150 can respectively form combined transmission of signals of multiple first frequency bands and signals of the second frequency band, namely, the first antenna 140 and the second antenna 150 can flexibly select the combination of the signals of different first frequency bands and the signals of the second frequency band according to different use environments, so that the antenna can have better radiation performance under different use environments, and the efficiency of the antenna for transmitting radio frequency signals is improved.

The radio frequency circuit further includes a radio frequency chip 170, where the radio frequency chip 170 is connected to the first switch 111 and the second switch 112, and the radio frequency chip 170 can obtain signal strengths of signals transmitted by the first antenna 140 and the second antenna 150, and control the first switch 111 and the second switch 112 according to the signal strengths, so as to maximize the signal strengths of the signals transmitted by the first antenna 140 and the second antenna 150.

Specifically, the radio frequency chip 170 controls the first switch 111 to conduct each first input end with a different first output end according to a rotation mechanism, and controls each second input end of the second switch 112 to conduct each second input end with a different second output end, so that the first switch 111 and the second switch 112 are in different conducting states, and obtains a plurality of signal intensities of the first antenna 140 and the second antenna 150 in different conducting states of the first switch 111 and the second switch 112; the corresponding target conduction state of the largest one of the plurality of signal intensities is acquired, and the first switch 111 and the second switch 112 are controlled to be in the target conduction state.

As in the example described above, the first switch 111 includes 2 first inputs, 2 second inputs, and the second switch 112 includes 2 first outputs and 2 second outputs, then the first switch 111 and the second switch 112 may be switched to the above 4 conductive states. The rotation mechanism of the first switch 111 and the second switch 112 may be a first conduction state, a second conduction state, a third conduction state, and a fourth conduction state, where the radio frequency chip 170 may obtain signal intensities of the first antenna 140 and the second antenna 150 when the first switch 111 and the second switch 112 are respectively in four conduction states, and confirm the conduction states of the first switch 111 and the second switch 112 as target conduction states when the signal intensities are maximum, and control the first switch 111 and the second switch 112 to be in target conduction states, so that the radiation performance of the first antenna 140 and the second antenna 150 reach the best, and the radio frequency chip may work at the maximum throughput rate, so that a user may obtain the best internet surfing experience.

It should be noted that the first switch 111 may include 3 first input terminals a and 3 first output terminals c, and the second switch 112 may also include 3 second input terminals b and 3 second output terminals d, for example, the first switch 111 and the second switch 112 may be three pole three throw (3P 3T) switches. Correspondingly, the radio frequency circuit may be added with a third frequency divider and a third antenna, where the third frequency divider has the same functions as the first frequency divider 120 and the second frequency divider 130, or may divide the radio frequency signal input by the third antenna into a first frequency band signal and a second frequency band signal and send the first frequency band signal and the second frequency band signal to the first switch 111 and the second switch 112, and the third antenna, like the first antenna 140 and the second antenna 150, may respectively transmit the combination of signals in different first frequency bands and second frequency bands. For example, one of the first antenna 140, the second antenna 150 and the third antenna is used as a main set antenna of the first frequency band, the other two antennas are used as diversity antennas of the first frequency band, and one of the first antenna 140, the second antenna 150 and the third antenna is used as a main set antenna of the second frequency band, and the other two antennas are used as diversity antennas of the second frequency band. Then the first switch 111 and the second switch 112 may be switched to the above 8 conductive states, the radio frequency chip 170 may obtain the signal intensities of the radio frequency circuit antennas in the 8 conductive states of the first switch 111 and the second switch 112, and when the signal intensities are maximum, the conductive states of the first switch 111 and the second switch 112 are confirmed to be the target conductive states, and the first switch 111 and the second switch 112 are controlled to be the target conductive states, so that the radiation performance of the radio frequency circuit antenna is best, and the radio frequency chip 170 may work at the maximum throughput rate, so that the user may obtain the best internet surfing experience.

Illustratively, the first antenna 140 serves as one of a main set antenna and a diversity antenna of the first frequency band, and as one of a main set antenna or a diversity antenna of the second frequency band; the second antenna 150 serves as the other of the main set antenna and the diversity antenna of the first frequency band, and as the other of the main set antenna or the diversity antenna of the second frequency band.

The main set antenna of the first frequency band can transmit and receive signals of the first frequency band, and the diversity antenna of the first frequency band can receive signals of the first frequency band; the main set antenna of the second frequency band can transmit and receive signals of the second frequency band, and the diversity antenna of the second frequency band can receive signals of the second frequency band.

Illustratively, the first output terminal c1 is fixedly connected to the main-set signal receiving port e1 of the first frequency band of the radio frequency transceiver 160, the first output terminal c2 is fixedly connected to the diversity-signal receiving port e2 of the first frequency band of the radio frequency transceiver 160, the second output terminal d1 is fixedly connected to the main-set signal receiving port e3, and the second output terminal d2 is fixedly connected to the diversity-signal receiving port e4 of the second frequency band. The rf chip 170 may control the switch module 110 to be in different on states according to a rotation mechanism, when the first switch 111 and the second switch 112 are in the first on state, the first input terminal a1 may be connected to the first output terminal c1 in a conducting manner, the first input terminal a2 may be connected to the first output terminal c2 in a conducting manner, the second input terminal b1 may be connected to the second output terminal d1 in a conducting manner, the second input terminal b2 may be connected to the second output terminal d2 in a conducting manner, the third input terminal k1 may be connected to the third output terminal p1 in a conducting manner, the third input terminal k2 may be connected to the third output terminal p2 in a conducting manner, so that the first antenna 140 serves as a main set antenna of the first frequency band and a main set antenna of the second frequency band, the main set antenna of the second frequency band corresponds to receive the main set signal of the first frequency band and the diversity signal of the second frequency band, and the first antenna 140 corresponds to transmit the first frequency band signal and the second frequency band signal output by the rf transceiver 160, the second antenna 150 serves as the diversity antenna of the first frequency band and the second frequency band diversity antenna of the second frequency band signal corresponds to receive the diversity signal of the first frequency band and the second frequency band signal.

When the first switch 111 and the second switch 112 are in the second on state, the first input terminal a1 may be connected to the first output terminal c1 in a conducting manner, the first input terminal a2 may be connected to the first output terminal c2 in a conducting manner, the second input terminal b1 may be connected to the second output terminal d2 in a conducting manner, and the second input terminal b2 may be connected to the second output terminal d1 in a conducting manner, so that the first antenna 140 serves as a main set antenna of the first frequency band and a diversity antenna of the second frequency band, correspondingly receives the main set signal of the first frequency band and the diversity signal of the second frequency band, and the first antenna 140 corresponds to the first frequency band signal and the second frequency band signal outputted by the transmitting radio frequency transceiver 160, the second antenna 150 serves as a diversity antenna of the first frequency band and a main set antenna of the second frequency band, correspondingly receives the diversity signal of the first frequency band and the main set signal of the second frequency band signal, and the second antenna 150 corresponds to the second frequency band signal outputted by the transmitting radio frequency transceiver 160.

When the first switch 111 and the second switch 112 are in the third on state, the first input terminal a1 may be connected to the first output terminal c2 in a conducting manner, the first input terminal a2 may be connected to the first output terminal c1 in a conducting manner, the second input terminal b1 may be connected to the second output terminal d1 in a conducting manner, and the second input terminal b2 may be connected to the second output terminal d2 in a conducting manner, so that the first antenna 140 serves as a diversity antenna of the first frequency band and a main set antenna of the second frequency band, correspondingly receives the diversity signal of the first frequency band and the main set signal of the second frequency band, and the first antenna 140 correspondingly transmits the second frequency band signal output by the radio frequency transceiver 160, the second antenna 150 serves as a diversity antenna of the first frequency band and a diversity antenna of the second frequency band, correspondingly receives the main set signal of the first frequency band and the diversity signal of the second frequency band, and the second antenna 150 correspondingly transmits the first frequency band signal output by the radio frequency transceiver 160.

When the first switch 111 and the second switch 112 are in the fourth on state, the first input terminal a1 may be connected to the first output terminal c2 in a conductive manner, the first input terminal a2 may be connected to the first output terminal c1 in a conductive manner, the second input terminal b1 may be connected to the second output terminal d2 in a conductive manner, and the second input terminal b2 may be connected to the second output terminal d1 in a conductive manner, so that the first antenna 140 serves as a diversity antenna of the first frequency band and a diversity antenna of the second frequency band, and correspondingly receives the diversity signal of the first frequency band and the diversity signal of the second frequency band, the second antenna 150 serves as a main set antenna of the first frequency band and a main set antenna of the second frequency band, correspondingly receives the main set signal of the first frequency band and the main set signal of the second frequency band, and the second antenna 150 correspondingly transmits the first frequency band signal and the second frequency band signal output by the radio frequency transceiver 160.

By alternately switching the switch module 110 to be in different on states, the first antenna 140 and the second antenna 150 transmit different signal combinations of the first frequency band and the second frequency band, and the signal strengths of the first antenna 140 and the second antenna 150 are also different.

In an exemplary use environment, such as when the electronic device is placed on a desktop, when the first switch 111 and the second switch 112 are switched to be in the first conductive state, the first antenna 140 is used as a low-frequency main set antenna and a medium-high-frequency main set antenna, and the second antenna 150 is used as a low-frequency diversity antenna and a medium-high-frequency diversity antenna, the signal strength of the first antenna 140 and the second antenna 150 is obtained poorly, the throughput is small, and even if the medium-high-frequency diversity sensitivity is good, the signal strength of the first antenna 140 and the second antenna 150 cannot be improved.

However, when the first switch 111 and the second switch 112 are switched to be in the second conductive state, the first antenna 140 may be used as a low-frequency main set antenna and a medium-high-frequency diversity antenna, and the second antenna 150 may be used as a low-frequency diversity antenna and a medium-high-frequency main set antenna, so that the signal strength obtained from the first antenna 140 and the second antenna 150 is the best, and the throughput is the greatest.

For another example, in another use environment, such as when the electronic device is held by the hand or placed near a metal object, when the first switch 111 and the second switch 112 are switched to be in the second conductive state, the first antenna 140 is used as a low-frequency main set antenna and a medium-high-frequency diversity antenna, and the second antenna 150 can be used as a low-frequency diversity antenna and a medium-high-frequency main set antenna, so that the signal strength obtained by the first antenna 140 and the second antenna 150 is poor, and the throughput is small.

However, when the switch module 110 is in the first conductive state, the first antenna 140 is used as the low-frequency main set antenna and the middle-high-frequency main set antenna, and the second antenna 150 is used as the low-frequency diversity antenna and the middle-high-frequency diversity antenna, the signal strength obtained by the first antenna 140 and the second antenna 150 is the best, and the throughput is the best.

Therefore, in different environments, the first switch 111 and the second switch 112 are flexibly switched to be in different on states, so that the first antenna 140 and the second antenna 150 can be flexibly selected to be in different working state combinations, and the first antenna 140 and the second antenna 150 are controlled to work in the working state with the maximum signal strength, so that the signal strength of the first antenna 140 and the second antenna 150 can be best in different use environments. It can be appreciated that even though the first antenna 140 and the second antenna 150 have internal and external interference when transmitting the carrier aggregation signal or the ENDC signal, by flexibly switching the combination of the first antenna 140 and the second antenna 150 to transmit different first frequency band signals and second frequency band signals, the radiation performance can be kept good when the first antenna 140 and the second antenna 150 transmit the carrier aggregation signal, so as to minimize the interference between CA frequency multiplication, and the radiation performance can be kept good when the first antenna 140 and the second antenna 150 transmit the carrier ENDC signal, so as to minimize the signal interference between different frequency bands, thereby enabling the user to obtain the best internet surfing experience.

The first switch 111 and the second switch 112 are arranged at intervals, a first wiring is arranged between the first switch 111 and the second connecting end f, a second wiring is arranged between the second switch 112 and the third connecting end g, and the first wiring and the second wiring are arranged in an isolated mode; a third wiring is arranged between the second switch 112 and the sixth connecting end i, a fourth wiring is arranged between the second switch 112 and the seventh connecting end j, the third wiring and the fourth wiring are arranged in an isolated mode, a third wiring is arranged between the third switch 113 and the sixth connecting end i, a fourth wiring is arranged between the second switch 112 and the seventh connecting end j, and the third wiring and the fourth wiring are arranged in an isolated mode.

In the prior art, when a CA combination of certain specific frequency bands works, when a low frequency works as a main carrier unit (Primary Component Carrier, PCC), harmonic margin thereof can interfere with a medium-high frequency receiving frequency just at a frequency multiplication point of a secondary carrier unit (Secondary Component Carrier, SCC), thereby generating frequency multiplication interference, which can lead to a great reduction of receiving performance under the CA working.

In this embodiment, the low-frequency signal is transmitted between the first switch 111 and the first frequency divider 120 and the second frequency divider 130, and the medium-high frequency signal is transmitted between the second switch 112 and the first frequency divider 120 and the second frequency divider 130, so that not only the first switch 111 and the second switch 112 are arranged at intervals, but also the wires connecting the first switch 111 and the first frequency divider 120 and the second frequency divider 130 and the wires connecting the second switch 112 and the first frequency divider 120 and the second frequency divider 130 are also arranged in isolation, so that the transmission paths of the low-frequency signal and the high-frequency signal are isolated from each other, thereby avoiding the problem of frequency multiplication interference caused by carrier aggregation.

Fig. 4 is a circuit diagram of the radio frequency circuit shown in fig. 3, where a power supply pin VDD of the first switch 111 may be connected to a power supply, a control pin VCTL of the first switch 111 may be connected to a pin (such as gpio_01) of the radio frequency chip 170, a first input terminal a1 and a first input terminal a2 of the first switch 111 may respectively input signals of different first frequency bands, a first output terminal c1 of the first switch 111 may fixedly receive a main set signal of the first frequency band, a first input terminal c2 may fixedly receive a diversity signal of the first frequency band, a first input terminal a1 of the first switch 111 may be connected to the first frequency divider 120 and the first antenna 140, and a first input terminal a2 of the first switch 111 may be connected to the second frequency divider 130 and the second antenna 150.

The power pin VDD of the first switch 111 may be further grounded through a capacitor, each first input end of the first switch 111 is grounded through a first inductor and a second inductor, and a first resistor is connected between the first inductor and the second inductor. The two inductors and the resistor form a pi-type network, and can play a role in impedance matching.

The control pin VCTL of the second switch 112 may be connected to a pin (such as gpio_02) of the radio frequency chip 170, the second input end b1 and the second input end b2 of the second switch 112 may respectively input signals of different second frequency bands, the second output end d1 of the second switch 112 may fixedly receive a main set signal of the second frequency band, the second input end d2 may fixedly receive a diversity signal of the second frequency band, the second input end b1 of the second switch 112 may be connected to the second frequency divider 130 and the second antenna 150, and the second input end a2 of the second switch 112 may be connected to the second frequency divider 130 and the second antenna 150.

The power pin VDD of the second switch 112 may be further grounded through a capacitor, each second output input end of the second switch 112 is grounded through a third inductor and a fourth inductor, and a second resistor is connected between the third inductor and the fourth inductor. The two inductors and the resistor form a pi-type network and can also play a role in impedance matching.

The first output terminal c1 of the first switch 111 may also be grounded through a fifth inductor. The second output d1 of the second switch 112 may also be grounded through a sixth inductor.

It should be noted that, the two pins (such as gpio_01 and gpio_02) of the radio frequency chip 170 may control the first switch 111 and the second switch 112 to be in different conductive states, and illustratively, different high-low levels may be input to the two pins (such as gpio_01 and gpio_02) of the radio frequency chip 170 to control the first switch 111 and the second switch 112 to be in different conductive states, for example, the first frequency band signal is a low frequency signal, the second frequency band is a medium-high frequency signal, so as to control the first antenna 140 to be one of a low frequency main set antenna and a diversity antenna, and to be one of a medium-high frequency main set antenna or a diversity antenna; and the second antenna 150 serves as the other of the main set antenna and the diversity antenna for low frequencies and as the other of the main set antenna or the diversity antenna for medium and high frequencies. The following table shows:

Table 5:

referring to fig. 5 and fig. 6, fig. 5 is a schematic diagram of a fourth structure of the rf circuit according to the embodiment of the application, and fig. 6 is a circuit diagram of the rf circuit shown in fig. 5. The switch module 110 may further include a third switch 113, where the third switch 113 includes 2 third input terminals and 2 third output terminals, and the 2 third input terminals are used for transmitting signals in a third frequency band; the first frequency divider 120 further includes a fourth connection terminal n, where the fourth connection terminal n is connected to a third input terminal; the second frequency divider 130 further includes an eighth connection terminal m, where the eighth connection terminal m is connected to another third input terminal; the first frequency divider 120 can divide the signal transmitted from the first antenna 140 into a first frequency band signal, a second frequency band signal, and a third frequency band signal, and the second frequency divider 130 can divide the signal transmitted from the second antenna 150 into the first frequency band signal, the second frequency band signal, and the third frequency band signal. Each third input of the third switch 113 is capable of switching on a different third output.

The third switch 113 includes 2 third input terminals k, respectively: a third input terminal k1, a third input terminal k2; and further comprises 2 third output terminals p, respectively: third output terminal p1, third output terminal p2. By switching the on state of the switch module 110, the third input end k1 and the third input end k2 may be selectively connected to the third output end p1 and the third output end p2, for example, the third input end k1 may be connected to the third output end p1 in a conducting manner, and the third input end k2 may be connected to the third output end p2 in a conducting manner; alternatively, the third input terminal k1 may be connected to the third output terminal p2 in a conductive manner, and the third input terminal k2 may be connected to the third output terminal p1 in a conductive manner.

The rf transceiver 160 may be capable of receiving the first frequency band signal, the second frequency band signal, and the third frequency band signal, and the rf transceiver 160 may also transmit the first frequency band signal, the second frequency band signal, and the third frequency band signal. Referring to fig. 6, fig. 6 is a schematic structural diagram of the rf circuit shown in fig. 5. The three pins (gpio_01, gpio_02, gpio_03) of the radio frequency chip 170 may control the first switch 111, the second switch 112, and the third switch 113 to be in different on states, and illustratively, different high and low levels may be input to the three pins (gpio_01, gpio_02, and gpio_03) of the radio frequency chip 170 to control the first switch 111, the second switch 112, and the third switch 113 to be in different on states, for example, the first frequency band signal is a low frequency signal, the second frequency band signal is an intermediate frequency signal, and the third frequency band signal is an intermediate frequency signal, so as to control the first antenna 140 to be one of a main set antenna and a diversity antenna of the first frequency band, and to be one of a main set antenna or a diversity antenna of the second frequency band, and to be one of a main set antenna or a diversity antenna of the third frequency band; the second antenna 150 serves as the other of the main set antenna and the diversity antenna of the first frequency band, and as the other of the main set antenna or the diversity antenna of the second frequency band, and as the other of the main set antenna or the diversity antenna of the third frequency band.

Exemplary, as shown in table 6 below:

table 6:

illustratively, the frequency bands of the low frequency signal are, for example: a frequency band operating within 600-960 MHZ; the frequency band of the intermediate frequency signal is as follows: frequency bands operating within 1710-2200 MHZ; the frequency bands of the high frequency signal are, for example: 2300-2690 MHz operating band. It should be noted that the above-mentioned high-frequency radio-frequency signal, intermediate-frequency radio-frequency signal, low-frequency radio-frequency signal, and medium-high-frequency radio-frequency signal are only relative concepts, and are not distinguished by absolute frequency ranges.

The first switch 111, the second switch 112 and the third switch 113 may be switched into the above 8 conductive states. The rotation mechanism of the first switch 111, the second switch 112 and the third switch 113 may be a first conduction state, a second conduction state, a third conduction state, a fourth conduction state, a fifth conduction state, a sixth conduction state, a seventh conduction state and an eighth conduction state, where the radio frequency chip 170 may obtain signal intensities of the first antenna 140 and the second antenna 150 when the first switch 111 and the second switch 112 are respectively in the eight conduction states, and when the signal intensities are the maximum, the conduction state of the switch module 110 is determined to be a target conduction state, and the first switch 111, the second switch 112 and the third switch 113 are controlled to be in the target conduction state, so that the radiation performance of the first antenna 140 and the second antenna 150 is the best, and the radio frequency chip may work at the maximum throughput rate, so that a user may obtain the best networking experience.

Illustratively, the first output end c1 is fixedly connected to the main set signal receiving port of the first frequency band of the radio frequency transceiver 160, the first output end c2 is fixedly connected to the diversity signal receiving port of the first frequency band of the radio frequency transceiver 160, the second output end d1 is fixedly connected to the main set signal receiving port, the second output end d2 is fixedly connected to the diversity signal receiving port of the second frequency band, the third output end k1 is fixedly connected to the main set signal receiving port, and the third output end k2 is fixedly connected to the diversity signal receiving port of the third frequency band. The antenna connected to the first output terminal c1 may be used as a main set antenna of the first frequency band, the received radio frequency signal includes the main set signal of the first frequency band in the spatial base station, the antenna connected to the first output terminal c2 may be used as a diversity antenna of the first frequency band, and the received radio frequency signal includes the diversity signal of the first frequency band in the spatial base station. The antenna conducted by the second output end d1 can be used as a main set antenna of the second frequency band, the received radio frequency signals comprise the main set signal of the second frequency band in the space base station, the antenna conducted by the second output end d2 can be used as a diversity antenna of the second frequency band, and the received radio frequency signals comprise the diversity signal of the second frequency band in the space base station. The antenna conducted by the third output end p1 can be used as a main set antenna of a third frequency band, the received radio frequency signals comprise the main set signal of the third frequency band in the space base station, the antenna conducted by the third output end p2 can be used as a diversity antenna of the third frequency band, and the received radio frequency signals comprise the diversity signal of the third frequency band in the space base station.

By alternately switching the switch module 110 on, the first antenna 140 and the second antenna 150 can respectively transmit different signal combinations of the first frequency band, the second frequency band and the third frequency band, and when the first antenna 140 and the second antenna 150 transmit different signal combinations of the first frequency band, the second frequency band and the third frequency band, the signal intensities of the first antenna 140 and the second antenna 150 are different. Therefore, in different environments, the switch module 110 may be in different on states, so that the first antenna 140, the second antenna 150 and the third antenna may be flexibly selected to be in different working state combinations, and the signal intensities of the first antenna 140, the second antenna 150 and the third antenna when being in different working state combinations are collected, so that the signal intensities of the first antenna 140, the second antenna 150 and the third antenna may be best in different use situations, and the problem of internal and external interference is improved, so that the user may obtain the best internet experience.

The first switch 111, the second switch 112 and the third switch 113 are arranged at intervals, a first wiring is arranged between the first switch 111 and the second connecting end f, a second wiring is arranged between the second switch 112 and the third connecting end, a third wiring is arranged between the third switch 113 and the fourth connecting end, and the first wiring, the second wiring and the third wiring are arranged in an isolated mode; a third wiring is arranged between the second switch 112 and the sixth connecting end, a fourth wiring is arranged between the second switch 112 and the seventh connecting end, and the third wiring and the fourth wiring are arranged in an isolated manner; a fifth wiring is arranged between the third switch 113 and the fourth connecting end n, a sixth wiring is arranged between the third switch 113 and the eighth connecting end m, and the fifth wiring and the sixth wiring are arranged in an isolated mode.

Referring to fig. 7, fig. 7 is a schematic diagram of a first structure of an electronic device according to an embodiment of the application. The electronic device 10 may also include an antenna apparatus 200, a memory 300, and a processor 400.

The antenna device 200 may include the above-described radio frequency circuit 100 to transmit wireless signals under the control of the radio frequency circuit 100. The antenna device 200 may be provided in the electronic apparatus 10, a middle frame, a rear case, and the like. The antenna device 200 may be electrically connected to the processor 400, for example, the radio frequency transceiver 16010 of the radio frequency circuit 100 of the antenna device 200 may be electrically connected to the processor 400 to receive control of the processor 400.

Memory 300 may be used to store applications and data. Memory 300 stores application programs that include executable program code. Applications may constitute various functional modules. The processor 400 executes various functional applications and data processing by running application programs stored in the memory 300.

The processor 400 may be a control center of the electronic device 10. The processor 400 utilizes various interfaces and lines to connect various portions of the overall electronic device 10, perform various functions of the electronic device 10 and process data by running or executing applications stored in the memory 300, and invoking data stored in the memory 300, thereby performing overall monitoring of the electronic device 10.

Referring to fig. 8, fig. 8 is a schematic diagram of a second structure of an electronic device according to an embodiment of the application. The electronic device 10 may be a smart phone, a tablet computer, or the like, and may also be a game device, an augmented reality (Augmented Reality, abbreviated as AR) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or the like. The electronic device 10 of the embodiment of the present application may further include a display screen 500, a middle frame 600, a circuit board 700, a battery 800, a rear case 900, and the like.

The display screen 500 may be used to display information such as images, text, and the like. The display screen 500 may be an Organic Light-Emitting Diode (OLED) display screen 500. The electronic device 10 may further include a cover plate (not shown) that may be mounted on the middle frame 600 and cover the display screen 500 to protect the display screen 500 from scratches or water damage. The cover may be a transparent glass cover so that a user may view the contents displayed on the display screen 500 through the cover.

The display screen 500 may be mounted on the middle frame 600 and connected to the rear cover through the middle frame 600 to form a display surface of the electronic device 10. The display screen 500, as a front case of the electronic device 10, forms a housing of the electronic device 10 together with a rear cover for accommodating other electronic components of the electronic device 10. For example, the housing may be used to house the processor 400, memory 300, one or more sensors, and other electronics of the electronic device 10.

The middle frame 600 may include a rim and a carrier plate that may provide support for the electronics or electronic components in the electronic device 10. The frame is connected to the edge of the bearing plate and protrudes out of the bearing plate, and the frame and the bearing plate form a containing space in which electronic components and electronic devices in the electronic equipment 10 can be installed and fixed.

The circuit board 700 may be mounted on the middle frame 600. The circuit board 700 may be a motherboard of the electronic device 10. One, two or more of the microphone, speaker, receiver, earphone interface, universal serial bus interface (USB interface), camera module, distance sensor, environmental sensor, gyroscope, and processor 400 may be integrated on the circuit board 700. Wherein the display screen 500 may be electrically connected to the circuit board 700 to control the display of the display screen 500 by the processor 400 on the circuit board 700.

It will be appreciated that the rf circuit 100 in the foregoing embodiments may be disposed on the circuit board 700 to control the rf circuit 100 by the processor 400 on the circuit board 700.

The battery 800 may be mounted to the middle frame 600. Meanwhile, the battery 800 is electrically connected to the circuit board 700 to enable the battery 800 to supply power to the electronic device 10. A power management circuit may be provided on the circuit board 700. The power management circuitry is used to distribute the voltage provided by the battery 800 to the various electronic devices in the electronic device 10.

The rear case 900 may be connected with the middle frame 600. The rear case 900 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 600 and the display screen 500 to form a protective effect for the electronic devices and functional components of the electronic device 10.

In addition, the electronic device 10 may further include a camera module, a bluetooth module, etc., which will not be described herein.

In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.

The radio frequency circuit, the antenna device and the electronic device provided by the embodiments of the present application are described in detail, and specific examples are applied to illustrate the principles and the implementation of the present application. Meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the present description should not be construed as limiting the present application in summary.

Claims

1. A radio frequency circuit, comprising:

the first frequency divider comprises a first connecting end, a second connecting end and a third connecting end, wherein the second connecting end is connected with one first input end, and the third connecting end is connected with one second input end;

the second frequency divider comprises a fifth connecting end, a sixth connecting end and a seventh connecting end, wherein the sixth connecting end is connected with the other first input end, and the seventh connecting end is connected with the other second input end;

the first antenna is connected with the first connecting end;

the second antenna is connected with the fifth connecting end;

the first frequency divider can divide the signal transmitted by the first antenna into the signal of the first frequency band and the signal of the second frequency band, and the second frequency divider can divide the signal transmitted by the second antenna into the signal of the first frequency band and the signal of the second frequency band.

2. The radio frequency circuit of claim 1, wherein the switch module comprises:

3. The radio frequency circuit of claim 2, further comprising:

4. The radio frequency circuit of claim 3, wherein the radio frequency chip is further configured to:

Controlling each first input end of the first switch to be conducted with different first output ends according to a rotation mechanism, and controlling each second input end of the second switch to be conducted with different second output ends so as to enable the first switch and the second switch to be in different conducting states;

5. The radio frequency circuit of claim 1, wherein the first antenna is one of a main set antenna and a diversity antenna of the first frequency band and is one of a main set antenna or a diversity antenna of the second frequency band;

6. The radio frequency circuit according to claim 2, wherein the first switch and the second switch are arranged at intervals, a first wiring is arranged between the first switch and the second connection end, a second wiring is arranged between the second switch and the third connection end, and the first wiring and the second wiring are arranged in an isolated manner;

7. The radio frequency circuit of claim 1, wherein each of the first input terminals is grounded through a first inductor and a second inductor, respectively, the first inductor and the second inductor being connected therebetween to a first resistor; each second input end is grounded through a third inductor and a fourth inductor respectively, and a second resistor is connected between the third inductor and the fourth inductor.

8. The radio frequency circuit of claim 2, wherein the switch module further comprises:

9. The radio frequency circuit of claim 8, wherein:

the first frequency divider further comprises a fourth connecting end, and the fourth connecting end is connected with one third input end;

10. The radio frequency circuit of claim 9, wherein:

the first switch, the second switch and the third switch are arranged at intervals, a first wiring is arranged between the first switch and the second connecting end, a second wiring is arranged between the second switch and the third connecting end, and the first wiring and the second wiring are arranged in an isolated mode;

11. An antenna arrangement, characterized in that it comprises a radio frequency circuit according to any one of claims 1 to 10.

12. An electronic device, characterized in that the electronic device comprises a circuit board, on which a radio frequency circuit is arranged, the radio frequency circuit being the radio frequency circuit according to any one of claims 1 to 10.