WO2019019884A1

WO2019019884A1 - Radio-frequency circuit, antenna device, and electronic device

Info

Publication number: WO2019019884A1
Application number: PCT/CN2018/094443
Authority: WO
Inventors: 丛明; 冯斌
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-07-25
Filing date: 2018-07-04
Publication date: 2019-01-31
Also published as: CN107493114A

Abstract

A radio-frequency circuit comprises a chip for a radio-frequency circuit switch. An input end of a first phase shift assembly of the radio-frequency circuit switch is connected to a high-frequency transmission port of a radio-frequency receiver, and an output end of the first phase shift assembly is connected to an input end of a first switch. An input end of a second phase shift assembly is connected to an intermediate-frequency transmission port of the radio-frequency transceiver, and an output end of the second phase shift assembly is connected to an input end of a second switch. An input end of a third switch is connected to a low-frequency transmission port of the radio-frequency transceiver.

Description

RF circuit, antenna device and electronic device

The present application claims priority to Chinese Patent Application No. 200910614400.5, entitled "RF Circuits, Antenna Devices, and Electronic Devices", filed on July 25, 2017, the entire contents of which is incorporated herein by reference. in.

Technical field

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

Background technique

With the development of communication technologies, more and more communication bands can be supported by mobile terminals. For example, an LTE (Long Term Evolution) communication signal may include a signal having a frequency between 700 MHz and 2700 MHz.

The radio frequency signals that the mobile terminal can support can be divided into a low frequency signal, an intermediate frequency signal, and a high frequency signal. The low frequency signal, the intermediate frequency signal, and the high frequency signal each include a plurality of sub-band signals. Each sub-band signal needs to be transmitted to the outside through the antenna.

As a result, Carrier Aggregation (CA) technology has been developed. Through carrier aggregation, multiple sub-band signals can be aggregated together to improve the uplink and downlink transmission rates of the network.

Summary of the invention

The embodiments of the present application provide a radio frequency circuit, an antenna device, and an electronic device, which can improve the diversity of carrier aggregation performed by an electronic device.

The embodiment of the present application provides a radio frequency circuit, including a radio frequency transceiver, a radio frequency circuit switch chip, a combiner, and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip, the combiner, and the antenna are sequentially connected;

The radio frequency circuit switch chip includes a first phase shift component, a second phase shift component, a first switch, a second switch, and a third switch;

The input end of the first phase shifting component is connected to the high frequency transmitting port of the radio frequency transceiver, and the output end of the first phase shifting component is connected to the input end of the first switch;

An input end of the second phase shifting component is connected to an intermediate frequency transmitting port of the radio frequency transceiver, and an output end of the second phase shifting component is connected to an input end of the second switch;

The input end of the third switch is connected to the low frequency transmitting port of the radio frequency transceiver;

The output ends of the first switch and the second switch are connected to form a switch output port, the switch output port is located inside the radio frequency circuit switch chip, and the switch output port and the output end of the third switch are connected to the Describe the input end of the combiner;

When the first switch and the second switch both turn the first phase shifting component and the second phase shifting component into the combiner, and the third switch turns on the The first phase shifting component adjusts a phase offset of the high frequency radio frequency signal output by the high frequency transmitting port to a first preset value, the second phase, when the low frequency transmitting port and the combiner The offset component adjusts a phase offset of the intermediate frequency radio frequency signal output by the intermediate frequency transmission port to a second preset value, so that a transmission path of the high frequency radio frequency signal is cut off with respect to the intermediate frequency radio frequency signal, the intermediate frequency Transmitting a radio frequency signal with respect to the high frequency radio frequency signal, such that the high frequency radio frequency signal and the intermediate frequency radio frequency signal are subjected to carrier aggregation to obtain an aggregated signal, and the combiner combines the aggregated signal and the Low frequency RF signal carrier aggregation of low frequency transmit port output.

The embodiment of the present application further provides an antenna device, including a radio frequency circuit and a data processing circuit, where the radio frequency circuit is connected to the data processing circuit, the radio frequency circuit is the radio frequency circuit, and the data processing circuit is used to The RF signal transmitted and received by the RF circuit is processed.

The embodiment of the present application further provides an electronic device including a casing and a circuit board. The circuit board is installed inside the casing. The circuit board is provided with a radio frequency circuit, and the radio frequency circuit is the radio frequency circuit.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

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

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

4 is a third schematic structural diagram of a radio frequency circuit according to an embodiment of the present application.

FIG. 5 is a fourth structural diagram of a radio frequency circuit according to an embodiment of the present application.

FIG. 6 is a schematic diagram of a first structure of a radio frequency circuit switch chip according to an embodiment of the present application.

FIG. 7 is a schematic diagram of a second structure of a radio frequency circuit switch chip according to an embodiment of the present application.

FIG. 8 is a third schematic structural diagram of a radio frequency circuit switch chip according to an embodiment of the present application.

FIG. 9 is a fourth structural diagram of a radio frequency circuit switch chip according to an embodiment of the present application.

FIG. 10 is a fifth structural diagram of a radio frequency circuit according to an embodiment of the present application.

FIG. 11 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

FIG. 12 is a schematic structural diagram of an antenna apparatus according to an embodiment of the present application.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientations of "post", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the present invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit the invention. In addition, the present invention may be repeated with reference to the numerals and/or reference numerals in the various examples, which are for the purpose of simplicity and clarity, and do not indicate the relationship between the various embodiments and/or arrangements discussed. Moreover, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

The embodiment provides a radio frequency circuit, including a radio frequency transceiver, a radio frequency circuit switch chip, a combiner, and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip, the combiner, and the antenna are sequentially connected;

In one embodiment, the radio frequency switch chip includes a first output port and a second output port, the switch output port is connected to the first output port, an output end of the third switch, and the second An output port is connected, the first output port and the second output port being connected to an input of the combiner.

In one embodiment, the first switch, the second switch, and the third switch are both single-pole multi-throw switches.

In an embodiment, the number of the high frequency transmitting ports is at least two, and the first phase shifting component includes at least two first phase shifters, and each of the high frequency transmitting ports passes through one The first phase shifter is coupled to the first switch, and the first switch is configured to connect each of the first phase shifters to the combiner.

In an embodiment, the number of the intermediate frequency transmission ports is at least two, and the second phase offset component includes at least two second phase shifters, and each of the intermediate frequency transmission ports passes through one of the A second phase shifter is coupled to the second switch, the second switch for coupling each of the second phase shifters to the combiner.

In an embodiment, the high frequency transmission port includes N ₁ different frequency band sub-transmission ports, and the input end of the first switch includes N ₁ high frequency sub input ports, and the N ₁ sub transmission ports and The N ₁ high frequency sub input ports are connected one by one;

The intermediate frequency port includes N ₂ different frequency band sub-transmission ports, the input end of the second switch includes N ₂ intermediate frequency sub-input ports, and the N ₂ sub-transmission ports and the N ₂ intermediate frequency sub-input ports are One connection

The low frequency port includes N ₃ different frequency band sub-transmission ports, the input end of the third switch includes N ₃ low frequency sub input ports, and the N ₃ sub transmission ports and the N ₃ low frequency sub input ports are One connection

Wherein, N ₁ , N ₂ and N ₃ are all natural numbers greater than 1.

In an embodiment, each of the sub-transmitting ports of the high-frequency transmitting port and each of the first switches correspond to a high-frequency sub-input port, and each sub-transmitting port of the intermediate-frequency transmitting port is A power amplifier is connected between each of the sub-transmission ports corresponding to the intermediate frequency sub-input ports of the second switch, each of the sub-transmission ports of the low-frequency port, and each of the corresponding low-frequency sub-input ports of the third switch.

In an embodiment, each of the sub-transmitting ports of the high-frequency transmitting port and each of the first switches correspond to a high-frequency sub-input port, each sub-transmitting port of the intermediate frequency port, and the A duplexer or a filter is connected between each of the second switches corresponding to the intermediate frequency sub-input ports, each of the sub-transmitting ports of the low-frequency port, and each of the corresponding low-frequency sub-input ports of the third switch.

In one embodiment, the radio frequency circuit emits a high frequency radio frequency signal when the first switch is turned on and the second switch and the third switch are disconnected.

In one embodiment, the radio frequency circuit transmits an intermediate frequency radio frequency signal when the second switch is turned on and the first switch and the third switch are disconnected.

In one embodiment, the radio frequency circuit emits a low frequency radio frequency signal when the third switch is turned on and the first switch and the second switch are disconnected.

In one embodiment, the radio frequency circuit implements carrier aggregation of a high frequency radio frequency signal and an intermediate frequency radio frequency signal when both the first switch and the second switch are both turned on and the third switch is disconnected.

In one embodiment, the radio frequency circuit implements carrier aggregation of a high frequency radio frequency signal and a low frequency radio frequency signal when both the first switch and the third switch are both turned on and the second switch is disconnected.

In one embodiment, the radio frequency circuit implements carrier aggregation of the intermediate frequency radio frequency signal and the low frequency radio frequency signal when both the second switch and the third switch are turned on and the first switch is disconnected.

In one embodiment, the number of high frequency transmitting ports of the radio frequency transceiver is at least two, and the first phase shifting component includes at least two first phase shifters, each of the high frequency transmitting The port is respectively connected to the first switch by a first phase shifter, and the first switch is configured to connect each of the first phase shifters with the combiner.

In an embodiment, the number of intermediate frequency transmission ports of the radio frequency transceiver is at least two, and the second phase offset component includes at least two second phase shifters, and each of the intermediate frequency transmission ports respectively The second switch is connected to the second switch by a second phase shifter, and the second switch is configured to connect each of the second phase shifters with the combiner.

In an embodiment, the radio frequency circuit further includes a control circuit, the control circuit is connected to the radio frequency circuit switch chip, and the control circuit is further connected to a processor of the electronic device, according to the instruction of the processor Controlling the state of the radio frequency circuit switch chip.

In one embodiment, the input of the first phase shifter is coupled to at least two high frequency transmit ports of the radio frequency transceiver.

An embodiment of the present application provides an electronic device. The electronic device can be a device such as a smartphone or a tablet. Referring to FIG. 1, the electronic device 100 includes a cover 101, a display screen 102, a circuit board 103, and a housing 104.

The cover plate 101 is mounted to the display screen 102 to cover the display screen 102. The cover plate 101 may be a transparent glass cover. In some embodiments, the cover plate 101 can be a glass cover plate made of a material such as sapphire.

The display screen 102 is mounted on the housing 104 to form a display surface of the electronic device 100. The display screen 102 can include a display area 102A and a non-display area 102B. The display area 102A is for displaying information such as images, texts, and the like. The non-display area 102B does not display information. The bottom of the non-display area 102B may be provided with functional components such as a fingerprint module and a touch circuit.

The circuit board 103 is mounted inside the housing 104. The circuit board 103 can be a motherboard of the electronic device 100. Functional components such as a camera, a proximity sensor, and a processor can be integrated on the circuit board 103. At the same time, the display screen 102 can be electrically connected to the circuit board 103.

In some embodiments, a circuit board 103 is provided with a radio frequency (RF) circuit. The radio frequency circuit can communicate with a network device (eg, a server, a base station, etc.) or other electronic device (eg, a smart phone, etc.) through a wireless network to complete transceiving information with the network device or other electronic device.

In some embodiments, as shown in FIG. 2, the radio frequency circuit 200 includes a radio frequency transceiver 21, a power amplifying unit 22, a filtering unit 23, a radio frequency circuit switching chip 24, a combiner 25, and an antenna 26. The power amplifying unit 22, the filtering unit 23, the radio frequency circuit switching chip 24, the combiner 25, and the antenna 26 are sequentially connected.

The radio frequency transceiver 21 has a transmit port TX and a receive port RX. The transmitting port TX is used to transmit a radio frequency signal (uplink signal), and the receiving port RX is used to receive a radio frequency signal (downlink signal). The transmitting port TX of the radio frequency transceiver 21 is connected to the power amplifying unit 22, and the receiving port RX is connected to the filtering unit 23.

The power amplifying unit 22 is configured to amplify the uplink signal transmitted by the radio frequency transceiver 21 and send the amplified uplink signal to the filtering unit 23.

The filtering unit 23 is configured to filter the uplink signal transmitted by the radio frequency transceiver 21 and send the filtered uplink signal to the antenna 26. The filtering unit 23 is further configured to filter the downlink signal received by the antenna 26 and send the filtered downlink signal to the radio frequency transceiver 21.

The RF circuit switch chip 24 is used to selectively turn on the communication band between the RF transceiver 21 and the antenna 26. The detailed structure and function of the RF circuit switch chip 24 will be described below.

The combiner 25 can be a dual frequency combiner. The output of combiner 25 is connected to antenna 26.

The antenna 26 is configured to transmit an uplink signal sent by the radio frequency transceiver 21 to the outside, or receive a radio frequency signal from the outside, and send the received downlink signal to the radio frequency transceiver 21.

In some embodiments, as shown in FIG. 3, the radio frequency circuit 200 further includes a control circuit 27. The control circuit 27 is connected to the RF circuit switch chip 24. The control circuit 27 can also be coupled to a processor in the electronic device 100 to control the state of the RF circuit switch chip 24 in accordance with instructions from the processor.

In some embodiments, as shown in FIG. 4, the radio frequency transceiver 21 includes a high frequency port 21H, an intermediate frequency port 21M, and a low frequency port 21L. The high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L may respectively include a plurality of radio frequency transmitting ports and a plurality of radio frequency receiving ports. The high frequency port 21H is used for transmitting and receiving high frequency radio frequency signals, the intermediate frequency port 21M is used for transmitting and receiving intermediate frequency radio frequency signals, and the low frequency port 21L is used for transmitting and receiving low frequency radio frequency signals.

It should be noted that the above-mentioned high frequency radio frequency signal, intermediate frequency radio frequency signal, and low frequency radio frequency signal are only relative concepts, and there is no absolute frequency range distinction.

For example, the radio frequency transceiver 21 includes nine radio frequency transmitting ports a1, a2, a3, a4, a5, a6, a7, a8, a9, and nine radio frequency receiving ports b1, b2, b3, b4, b5, b6, b7, B8, b9.

Among them, a1, a2, and a3 are high-frequency transmitting ports for transmitting high-frequency radio frequency signals (for example, radio frequency signals in bands such as band7, band40, and band41). B1, b2, and b3 are high frequency receiving ports for receiving high frequency RF signals. A4, a5, and a6 are intermediate frequency transmission ports for transmitting intermediate frequency radio frequency signals (for example, radio frequency signals in bands of band 1, band 2, and band 3). B4, b5, and b6 are intermediate frequency receiving ports for receiving intermediate frequency radio frequency signals. A7, a8, and a9 are low-frequency transmitting ports for transmitting low-frequency RF signals (for example, RF signals in bands such as band8, band12, and band20). B7, b8, and b9 are low frequency receiving ports for receiving low frequency RF signals.

It should be noted that the above embodiment only takes the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L of the radio frequency transceiver 21 as three radio frequency transmitting ports and three radio frequency receiving ports as an example for description. In some other embodiments, the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L may also include other numbers of radio frequency transmitting ports and radio frequency receiving ports, respectively. It suffices that the number of the radio frequency transmitting port and the radio frequency receiving port included in each of the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L is the same and greater than one.

The power amplifying unit 22 includes nine

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, 229. The

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, 229 are respectively connected to the radio frequency transmitting ports a1, a2, a3, a4, a5, a6, a7, a8, a9 of the radio frequency transceiver 21.

The filtering unit 23 includes nine

duplexers

231, 232, 233, 234, 235, 236, 237, 238, 239. Among them, the

duplexers

231, 232, 233, 234, 235, 236, 237, 238, 239 are connected to the

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, 229, respectively. And, the

duplexers

231, 232, 233, 234, 235, 236, 237, 238, 239 are respectively connected to the radio frequency receiving ports b1, b2, b3, b4, b5, b6, b7, b8, b9 of the radio frequency transceiver 21. .

The input of the RF circuit switch chip 24 includes nine sub-input ports c1, c2, c3, c4, c5, c6, c7, c8, c9. The sub-input ports c1, c2, c3, c4, c5, c6, c7, c8, and c9 are connected to the

duplexers

231, 232, 233, 234, 235, 236, 237, 238, and 239, respectively.

In some embodiments, as shown in FIG. 5, the filtering unit 23 includes a filter 231, a filter 232, and seven

duplexers

233, 234, 235, 236, 237, 238, 239. The filter 231, the filter 232, and the seven

duplexers

233, 234, 235, 236, 237, 238, and 239 are connected to the

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, and 229, respectively. Moreover, the filter 231, the filter 232, and the seven

duplexers

233, 234, 235, 236, 237, 238, 239 and the radio frequency receiving ports b1, b2, b3, b4, b5, b6 of the radio frequency transceiver 21, respectively B7, b8, b9 are connected.

The input of the RF circuit switch chip 24 includes nine sub-input ports c1, c2, c3, c4, c5, c6, c7, c8, c9. The sub-input ports c1, c2, c3, c4, c5, c6, c7, c8, and c9 are respectively connected to the filter 231, the filter 232, and the seven

duplexers

233, 234, 235, 236, 237, 238, and 239. connection.

It should be noted that the above embodiment is described by taking only the filter unit 23 including two filters and seven duplexers as an example. In other embodiments, filtering unit 23 may also include other numbers of filters and duplexers.

In the Long Term Evolution (LTE) communication network, the communication frequency band of LTE is divided into Frequency Division Duplex (FDD) and Time Division Duplex (Time Division Duplex). TDD) two types. In the communication frequency band in FDD mode, the uplink and downlink communication links use different frequencies. At this time, the duplexer needs to filter the uplink and downlink communication signals in the RF circuit. In the communication frequency band in TDD mode, the uplink and downlink communication links use the same frequency to transmit RF signals in different time slots. At this time, the RF circuit needs a filter to filter the uplink and downlink communication signals.

Therefore, in practical applications, the number of filters and the number of duplexers included in the filtering unit 23 depend on the duplex mode in which the radio frequency signals of the respective frequency bands transmitted by the radio frequency transceiver 21 are located. In the FDD mode, the RF transmit port and the RF receive port are connected to a duplexer; in the TDD mode, the RF transmit port and the RF receive port are connected to a filter. For example, the band1 and band2 bands work in the FDD mode, and the transmit port and the receive port of the band1 and band2 radio signals are connected to the duplexer; and the band40 and band41 bands operate in the TDD mode, and the transmit and receive ports of the band 40 and band41 radio frequency signals are transmitted. Connected to the filter.

Referring to FIG. 6 , in some embodiments, the RF circuit switch chip 24 can include a first switch 241 , a second switch 242 , a third switch 243 , a first phase shift component 245 , and a second phase shift component 246 .

The first switch 241 can be a single-pole multi-throw switch. The first switch 241 includes a plurality of sub input ports. For example, the first switch 241 includes three sub-input ports c1, c2, c3. The output of the first switch 241 can be connected to any one of the c1, c2, c3 sub-input ports.

The second switch 242 can be a single pole multi throw switch. The second switch 242 includes a plurality of sub-input ports. For example, the second switch 242 includes three sub-input ports c4, c5, c6. The output of the second switch 242 can be connected to any one of the c4, c5, c6 sub-input ports.

The third switch 243 can also be a single-pole multi-throw switch. The third switch 243 includes a plurality of sub input ports. For example, the second switch 243 includes three sub-input ports c7, c8, c9. The output of the third switch 243 can be connected to any one of the c7, c8, c9 sub-input ports.

The input of the first phase shifting component 245 can be coupled to the high frequency transmit port of the RF transceiver 21, and the output of the first phase shifting component 245 can be coupled to the input of the first switch 241.

The input of the second phase shifting component 246 can be coupled to the intermediate frequency transmit port of the RF transceiver 21, and the output of the second phase shifting component 246 can be coupled to the input of the second switch 242.

The input of the third switch 243 can be connected to the low frequency transmit port of the radio frequency transceiver 21.

The output ends of the first switch 241 and the second switch 242 may be connected to form a switch output port, which may be located inside the RF circuit switch chip 24, and the output of the switch output port and the third switch 243 may be connected to the combined circuit The input of the device 25.

In one embodiment, when the first switch 241 and the second switch 242 both connect the first phase shifting component 245 and the second phase shifting component 246 to the combiner 25, and the third switch 243 turns on the RF When the low frequency transmitting port of the transceiver 21 and the combiner 25 are used, the first phase shifting component 245 can adjust the phase offset of the high frequency radio frequency signal output by the high frequency transmitting port of the radio frequency transceiver 21 to a first preset value. The second phase shifting component 246 can adjust the phase offset of the intermediate frequency radio frequency signal output by the intermediate frequency transmitting port of the radio frequency transceiver 21 to a second preset value, so that the transmission path of the high frequency radio frequency signal is cut off relative to the intermediate frequency radio frequency signal. The transmission path of the intermediate frequency radio frequency signal is cut off relative to the high frequency radio frequency signal, so that the high frequency radio frequency signal and the intermediate frequency radio frequency signal are subjected to carrier aggregation to obtain a converged signal, and the combiner 25 can also use the converged signal and the low frequency of the radio frequency transceiver 21 The low frequency RF signal output from the transmitting port is used for carrier aggregation.

The radio frequency circuit provided by the embodiment of the invention can control the radio frequency signals of different frequency bands for carrier aggregation, thereby improving the diversity of carrier aggregation of the radio frequency signals by the electronic device.

In other embodiments, when the output of the first switch 241 is connected to any one of the c1, c2, c3 sub-input ports, and the second switch 242 is disconnected and the third switch 243 is disconnected, the radio frequency circuit It can emit high frequency RF signals.

When the output of the second switch 242 is connected to any one of the c4, c5, c6 sub-input ports, and the first switch 241 is disconnected and the third switch 243 is disconnected, the radio frequency circuit can transmit the intermediate frequency radio frequency signal.

When the output of the third switch 243 is connected to any one of the c7, c8, c9 sub-input ports, and the first switch 241 is disconnected and the second switch 242 is disconnected, the radio frequency circuit can transmit a low frequency radio frequency signal.

When the output end of the first switch 241 is connected to any one of the c1, c2, c3 sub-input ports, the output end of the second switch 242 is connected to any one of the c4, c5, c6 sub-input ports, and the third switch 243 When disconnected, the RF circuit can implement carrier aggregation of high frequency RF signals and IF RF signals.

When the output end of the first switch 241 is connected to any one of the c1, c2, c3 sub-input ports, the output end of the third switch 243 is connected to any one of the c7, c8, c9 sub-input ports, and the second switch 242 When disconnected, the RF circuit can implement carrier aggregation of high frequency RF signals and low frequency RF signals.

When the output end of the second switch 242 is connected to any one of the c4, c5, and c6 sub-input ports, the output end of the third switch 243 is connected to any one of the c7, c8, and c9 sub-input ports, and the first switch 241 When disconnected, the RF circuit can implement carrier aggregation of the IF RF signal and the low frequency RF signal.

When the output end of the first switch 241 is connected to any one of the c1, c2, c3 sub-input ports, the output end of the second switch 242 is connected to any one of the c4, c5, c6 sub-input ports, and the third switch 243 When the output is connected to any one of the c7, c8, and c9 sub-input ports, the RF circuit can implement carrier aggregation of high-frequency RF signals, intermediate-frequency RF signals, and low-frequency RF signals.

Referring to FIG. 7 , in one embodiment, the RF switch chip 24 can include a first output port 247 and a second output port 248 . The switch output port formed by connecting the output ends of the first switch 241 and the second switch 242 may be connected to the first output port 247, and the output end of the third switch 243 may be connected to the second output port 248, the first output port 247 and the The two output ports 248 are connected to the input of the combiner 25.

In some embodiments, the number of high frequency transmit ports of the radio frequency transceiver 21 is at least two, and the first phase shift component 245 can include at least two first phase shifters. Each of the high frequency transmitting ports may be coupled to the first switch 241 via a first phase shifter, and the first switch 241 is configured to connect each of the first phase shifters to the combiner 25.

For example, as shown in FIG. 7, the first phase shift component 245 can include three

phase shifters

2451, 2452, 2453. The three

phase shifters

2451, 2452, and 2453 are connected to the three sub-input ports c1, c2, and c3 of the first switch 241, respectively.

In some embodiments, the number of intermediate frequency transmission ports of the radio frequency transceiver 21 may be at least two, and the second phase offset component 246 may include at least two second phase shifters, each of which may pass through one The second phase shifter is coupled to the second switch 242 for turning each of the second phase shifters to the combiner 25.

For example, as shown in FIG. 7, second phase shift component 246 can include three

phase shifters

2461, 2462, 2463. The three

phase shifters

2461, 2462, and 2463 are connected to the three sub-input ports c4, c5, and c6 of the second switch 242, respectively.

In some embodiments, the input of a phase shifter can be coupled to one of the radio frequency transceivers (high frequency transmit port or intermediate frequency transmit port). In still other embodiments, the input of one phase shifter can be coupled to at least two radio frequency ports (e.g., two high frequency transmit ports, or two intermediate frequency transmit ports) in the radio frequency transceiver.

Referring to FIG. 8 , for example, the input end of the phase shifter 2451 is connected to the port corresponding to the Band 40 frequency band in the RF transceiver 21 , and the input end of the phase shifter 2461 is connected to the port corresponding to the Band 1 and Band 3 bands in the RF transceiver 21 . .

When the output of the first switch 241 is connected to the port c1, the output of the second switch 242 is connected to the port c4, and the third switch 243 is disconnected, the first phase shift component 245 is passed through phase shift (Phase Shift). The phase shifter 2451 can adjust the phase offset of the Band 40 signal output by the high frequency transmit port of the radio frequency transceiver 21 to a first preset value, and the phase shifter 2461 in the second phase offset component 246 can The phase offsets of the Band1 and Band3 signals output by the intermediate frequency transmitting port of the RF transceiver 21 are adjusted to a second preset value, so that the transmission paths of the Band1 and Band3 signals are cut off with respect to the Band40 signal, and the transmission path of the Band40 signal is compared with the Band1. And the Band3 signal is cut off, so that the high frequency radio frequency signal and the intermediate frequency radio frequency signal are subjected to carrier aggregation to obtain a aggregated signal.

It can be understood that, by phase offset, the carrier insertion of the radio frequency path can be reduced while the carrier aggregation is implemented.

Referring to FIG. 9, in another embodiment, the radio frequency circuit can also be a dual antenna design. For example, the RF switch chip 24 can include a first output port 247 and a second output port 248. The switch output port formed by connecting the output ends of the first switch 241 and the second switch 242 may be connected to the first output port 247, and the first output port 247 may be connected to the antenna 261. The output of the third switch 243 can be coupled to the second output port 248, and the second output port 248 can be coupled to the antenna 262.

Referring to FIG. 10, the radio frequency circuit 200 may include a radio frequency transceiver 21, a power amplifying unit 22, a filtering unit 23, a radio frequency circuit switching chip 24, a combiner 25, and an antenna 26. The power amplifying unit 22, the filtering unit 23, the radio frequency circuit switching chip 24, the combiner 25, and the antenna 26 are sequentially connected.

The RF circuit switch chip 24 can include a first switch 241, a second switch 242, a third switch 243, a first phase shifting component 245, and a second phase shifting component 246.

The third switch 243 can also be a single-pole multi-throw switch. The third switch 243 includes a plurality of sub input ports. For example, the third switch 243 includes three sub-input ports c7, c8, c9. The output of the third switch 243 can be connected to any one of the c7, c8, c9 sub-input ports.

Continue to refer to Figure 1. The housing 104 is used to form an outer contour of the electronic device 100. The material of the housing 104 may be plastic or metal. The housing 104 can be integrally formed.

Referring to FIG. 11, FIG. 11 is another schematic structural diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 includes an antenna device 10, a memory 20, a display unit 30, a power source 40, and a processor 50. Those skilled in the art can appreciate that the structure of the electronic device 100 shown in FIG. 11 does not constitute a limitation on the electronic device 100. Electronic device 100 may include more or fewer components than illustrated, or some components in combination, or different component arrangements.

The antenna device 10 includes the radio frequency circuit 200 described in any of the above embodiments. The antenna device 10 can communicate with a network device (eg, a server) or other electronic device (eg, a smart phone) over a wireless network to perform transceiving of information with a network device or other electronic device.

In some embodiments, as shown in FIG. 12, the antenna device 10 can also include a data processing circuit 300. The data processing circuit 300 is coupled to the radio frequency circuit 200. The data processing circuit 300 is configured to process radio frequency signals transmitted and received by the radio frequency circuit 200.

Memory 20 can be used to store applications and data. The application stored in the memory 20 contains executable program code. Applications can form various functional modules. The processor 50 executes various functional applications and data processing by running an application stored in the memory 20.

The display unit 30 can be used to display information input by the user to the electronic device 100 or information provided to the user and various graphical user interfaces of the electronic device 100. These graphical user interfaces can be composed of graphics, text, icons, video, and any combination thereof. The display unit 30 may include a display panel.

The power source 40 is used to power various components of the electronic device 100. In some embodiments, the power source 40 can be logically coupled to the processor 50 through a power management system to enable functions such as managing charging, discharging, and power management through the power management system.

The processor 50 is a control center of the electronic device 100. The processor 50 connects various parts of the entire electronic device 100 using various interfaces and lines, performs various functions of the electronic device 100 by running or executing an application stored in the memory 20, and calling data stored in the memory 20. The data is processed to perform overall monitoring of the electronic device 100.

In addition, the electronic device 100 may further include a camera module, a Bluetooth module, and the like, and details are not described herein again.

The radio frequency circuit switch chip, the radio frequency circuit, the antenna device and the electronic device provided by the embodiments of the present application are described in detail. The principles and implementation manners of the present invention are described in the specific examples. The description of the above embodiments is only used. To help understand the invention. In the meantime, the present invention is not limited by the scope of the present invention.

Claims

An RF circuit, comprising a radio frequency transceiver, a radio frequency circuit switch chip, a combiner and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip, the combiner and the antenna are sequentially connected;

The radio frequency circuit switch chip includes a first phase shift component, a second phase shift component, a first switch, a second switch, and a third switch;

The input end of the first phase shifting component is connected to the high frequency transmitting port of the radio frequency transceiver, and the output end of the first phase shifting component is connected to the input end of the first switch;

An input end of the second phase shifting component is connected to an intermediate frequency transmitting port of the radio frequency transceiver, and an output end of the second phase shifting component is connected to an input end of the second switch;

The input end of the third switch is connected to the low frequency transmitting port of the radio frequency transceiver;

The output ends of the first switch and the second switch are connected to form a switch output port, the switch output port is located inside the radio frequency circuit switch chip, and the switch output port and the output end of the third switch are connected to the Describe the input end of the combiner;

When the first switch and the second switch both turn the first phase shifting component and the second phase shifting component into the combiner, and the third switch turns on the The first phase shifting component adjusts a phase offset of the high frequency radio frequency signal output by the high frequency transmitting port to a first preset value, the second phase, when the low frequency transmitting port and the combiner The offset component adjusts a phase offset of the intermediate frequency radio frequency signal output by the intermediate frequency transmission port to a second preset value, so that a transmission path of the high frequency radio frequency signal is cut off with respect to the intermediate frequency radio frequency signal, the intermediate frequency Transmitting a radio frequency signal with respect to the high frequency radio frequency signal, such that the high frequency radio frequency signal and the intermediate frequency radio frequency signal are subjected to carrier aggregation to obtain an aggregated signal, and the combiner combines the aggregated signal and the Low frequency RF signal carrier aggregation of low frequency transmit port output.
The radio frequency circuit according to claim 1, wherein said radio frequency switch chip comprises a first output port and a second output port, said switch output port being connected to said first output port, and an output end of said third switch Connected to the second output port, the first output port and the second output port are connected to an input of the combiner.
The radio frequency circuit according to claim 1, wherein said first switch, said second switch, and said third switch are both single-pole multi-throw switches.
The radio frequency circuit according to claim 1, wherein said number of said high frequency transmitting ports is at least two, said first phase shifting component comprising at least two first phase shifters, each of said high frequency The transmitting port is respectively connected to the first switch by a first phase shifter, and the first switch is configured to connect each of the first phase shifters with the combiner.
The radio frequency circuit according to claim 1, wherein the number of the intermediate frequency transmission ports is at least two, and the second phase offset component comprises at least two second phase shifters, each of the intermediate frequency transmission ports. And connecting to the second switch by a second phase shifter, wherein the second switch is configured to connect each of the second phase shifters with the combiner.
The radio frequency circuit according to claim 1, wherein said high frequency transmitting port comprises N 1 sub-transmitting ports of different frequency bands, and the input end of said first switch comprises N 1 high frequency sub-input ports, said N One sub-transmitting port is connected to the N 1 high frequency sub-input ports one by one;

The intermediate frequency port includes N 2 different frequency band sub-transmission ports, the input end of the second switch includes N 2 intermediate frequency sub-input ports, and the N 2 sub-transmission ports and the N 2 intermediate frequency sub-input ports are One connection

The low frequency port includes N 3 different frequency band sub-transmission ports, the input end of the third switch includes N 3 low frequency sub input ports, and the N 3 sub transmission ports and the N 3 low frequency sub input ports are One connection

Wherein, N 1 , N 2 and N 3 are all natural numbers greater than 1.
The radio frequency circuit according to claim 6, wherein each of the sub-transmitting ports of the high-frequency transmitting port and each of the first switches corresponds to a high-frequency sub-input port, and each of the intermediate-frequency transmitting ports A power is connected between each of the sub-transmitting ports of the sub-transmitting port and the corresponding intermediate frequency sub-input port of the second switch, and each of the sub-transmitting ports of the low-frequency port and the corresponding low-frequency sub-input port of the third switch Amplifier.
The radio frequency circuit according to claim 6, wherein each of the sub-transmitting ports of the high-frequency transmitting port and each of the first switches correspond to a high-frequency sub-input port, and each of the intermediate frequency ports A duplex is connected between the transmitting port and each of the second switch corresponding intermediate frequency sub-input ports, each of the low-frequency ports, and each of the third switch corresponding to the low-frequency sub-input port Or filter.
The radio frequency circuit of claim 1, wherein the radio frequency circuit emits a high frequency radio frequency signal when the first switch is turned on and the second switch and the third switch are disconnected.
The radio frequency circuit of claim 1, wherein the radio frequency circuit transmits an intermediate frequency radio frequency signal when the second switch is turned on and the first switch and the third switch are disconnected.
The radio frequency circuit of claim 1, wherein the radio frequency circuit emits a low frequency radio frequency signal when the third switch is turned on and the first switch and the second switch are disconnected.
The radio frequency circuit according to claim 1, wherein the radio frequency circuit realizes a high frequency radio frequency signal and an intermediate frequency radio frequency when both the first switch and the second switch are both turned on and the third switch is disconnected Carrier aggregation of signals.
The radio frequency circuit according to claim 1, wherein the radio frequency circuit realizes a high frequency radio frequency signal and a low frequency radio frequency when both the first switch and the third switch are both turned on and the second switch is disconnected Carrier aggregation of signals.
The radio frequency circuit according to claim 1, wherein the radio frequency circuit realizes an intermediate frequency radio frequency signal and a low frequency radio frequency signal when both the second switch and the third switch are turned on and the first switch is disconnected Carrier aggregation.
The radio frequency circuit according to claim 1, wherein the number of high frequency transmitting ports of the radio frequency transceiver is at least two, and the first phase shifting component comprises at least two first phase shifters, each The high frequency transmitting port is respectively connected to the first switch by a first phase shifter, and the first switch is configured to connect each of the first phase shifters with the combiner through.
The radio frequency circuit according to claim 1, wherein the number of intermediate frequency transmission ports of the radio frequency transceiver is at least two, and the second phase shifting component comprises at least two second phase shifters, each of which The intermediate frequency transmitting port is respectively connected to the second switch by a second phase shifter, and the second switch is configured to connect each of the second phase shifters with the combiner.
The radio frequency circuit according to claim 1, wherein the radio frequency circuit further comprises a control circuit, the control circuit is connected to the radio frequency circuit switch chip, and the control circuit is further connected to a processor of the electronic device to The instructions of the processor control the state of the RF circuit switch chip.
The radio frequency circuit of claim 15 wherein the input of the first phase shifter is coupled to at least two high frequency transmit ports of the radio frequency transceiver.
An antenna device, wherein the antenna device comprises a radio frequency circuit and a data processing circuit, the radio frequency circuit being connected to the data processing circuit, the radio frequency circuit being the radio frequency circuit according to any one of claims 1 to The data processing circuit is configured to process a radio frequency signal transmitted and received by the radio frequency circuit.
An electronic device, wherein the electronic device includes a housing and a circuit board, the circuit board is mounted inside the housing, the circuit board is provided with a radio frequency circuit, and the radio frequency circuit is according to claims 1 to 18. The radio frequency circuit of any of the above.