CN107171675B

CN107171675B - Radio frequency circuit switch chip, radio frequency circuit, antenna device and electronic equipment

Info

Publication number: CN107171675B
Application number: CN201710466341.1A
Authority: CN
Inventors: 丛明; 冯斌
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-06-19
Filing date: 2017-06-19
Publication date: 2020-10-09
Anticipated expiration: 2037-06-19
Also published as: CN107171675A

Abstract

The embodiment of the invention provides a radio frequency circuit switch chip, a radio frequency circuit, an antenna device and electronic equipment. The radio frequency circuit switch chip comprises a first switch, a second switch, a first frequency divider and a second frequency divider; when the first input port and the second input port of the first switch are respectively connected with the output end of the first frequency divider, the input end of the first frequency divider is connected with the second frequency divider through the third input port of the first switch, and the second switch is connected with the second frequency divider, the second frequency divider divides the frequency of the received signal into a low-frequency signal and a first frequency-divided signal, and the first frequency divider divides the frequency of the first frequency-divided signal into an intermediate-frequency signal and a high-frequency signal; when the first switch is disconnected with the first frequency divider, and the third input port of the first switch and the second switch are respectively connected with the second frequency divider, the second frequency divider divides the frequency of the received signal into an intermediate frequency signal and a low frequency signal or a high frequency signal and a low frequency signal, so that the diversity of frequency division of the carrier aggregation signal by the electronic equipment is improved.

Description

Radio frequency circuit switch chip, 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 switch chip, a radio frequency circuit, an antenna device, and an electronic apparatus.

Background

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

Radio frequency signals that can be supported by a mobile terminal can be divided into low frequency signals, intermediate frequency signals, and high frequency signals. The low-frequency signal, the intermediate-frequency signal and the high-frequency signal respectively comprise a plurality of sub-frequency band signals. Each sub-band signal needs to be transmitted to the outside world via an antenna.

Thus, a Carrier Aggregation (CA) technique has been produced. Through carrier aggregation, a plurality of sub-frequency band signals can be aggregated together to improve the uplink and downlink transmission rate of the network.

Currently, the frequency resources of the various communication markets around the world are different from each other. Communication operators in different areas have different communication spectrum allocations, and different frequency band combination requirements of carrier aggregation exist. Correspondingly, when the terminal is in a carrier aggregation state, that is, receives radio frequency signals of different frequency band combinations, frequency division operation needs to be performed on the radio frequency signals to obtain the radio frequency signals of a specific frequency band. However, the current frequency division method is single, lacks diversity, and cannot meet the above requirements.

Disclosure of Invention

The embodiment of the invention provides a radio frequency circuit switch chip, a radio frequency circuit, an antenna device and electronic equipment, which can improve the diversity of frequency division of carrier aggregation signals by the electronic equipment.

The embodiment of the invention provides a radio frequency circuit switch chip, which comprises a first switch, a second switch, a first frequency divider and a second frequency divider;

when the first input port and the second input port of the first switch are respectively connected with the output end of the first frequency divider, the input end of the first frequency divider is connected with the second frequency divider through the third input port of the first switch, and the second switch is connected with the second frequency divider, the second frequency divider divides a received signal into a low-frequency signal and a first frequency-divided signal, and the first frequency divider divides the first frequency-divided signal into an intermediate-frequency signal and a high-frequency signal;

when the first switch is disconnected from the first frequency divider, and the third input port of the first switch and the second switch are respectively connected with the second frequency divider, the second frequency divider divides a received signal into an intermediate frequency signal and a low frequency signal, or a high frequency signal and a low frequency signal.

The embodiment of the invention also provides a radio frequency power supply, which comprises a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are sequentially connected;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first frequency divider and a second frequency divider;

The embodiment of the invention also provides an antenna device which comprises the radio frequency circuit.

Correspondingly, the embodiment of the invention also provides electronic equipment, which comprises a shell and a circuit board, wherein the electronic equipment comprises the shell and the circuit board, the circuit board is arranged in the shell, and the circuit board is provided with the radio frequency circuit.

The radio frequency circuit switch chip provided by the embodiment of the invention can divide the frequency of the carrier aggregation signal, so that the diversity of frequency division of the carrier aggregation signal by electronic equipment can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is an exploded schematic view of an electronic device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

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

Fig. 4 is a schematic diagram of a second structure of the rf circuit according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of a third structure of the rf circuit according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of a fourth structure of the rf circuit according to the embodiment of the present invention.

Fig. 7 is a schematic diagram of a fifth structure of the rf circuit according to the embodiment of the present invention.

Fig. 8 is a schematic diagram of a sixth structure of the rf circuit according to the embodiment of the present invention.

Fig. 9 is a schematic diagram of a seventh structure of the rf circuit according to the embodiment of the present invention.

Fig. 10 is a schematic diagram of an eighth structure of the rf circuit according to the embodiment of the present invention.

Fig. 11 is a schematic diagram of a ninth structure of the rf circuit according to the embodiment of the present invention.

Fig. 12 is a schematic diagram of a tenth structure of the rf circuit according to the embodiment of the present invention.

Fig. 13 is a schematic diagram of an eleventh structure of the rf circuit according to the embodiment of the present invention.

Fig. 14 is a schematic diagram of a twelfth structure of the rf circuit according to the embodiment of the present invention.

Fig. 15 is a schematic diagram of a first structure of a rf circuit switch chip according to an embodiment of the present invention.

Fig. 16 is a schematic diagram of a second structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 17 is a schematic diagram of a thirteenth structure of the rf circuit according to the embodiment of the present invention.

Fig. 18 is another schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The embodiment of the invention provides electronic equipment. The electronic device can be a smart phone, a tablet computer and the like. Referring to fig. 1 and2, the electronic device 100 includes a cover plate 101, a display screen 102, a circuit board 103, a battery 104, and a housing 105.

Wherein 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 plate. In some embodiments, the cover plate 101 may be a glass cover plate made of a material such as sapphire.

The display screen 102 is mounted on the housing 105 to form a display surface of the electronic device 100. The display screen 102 may include a display area 102A and a non-display area 102B. The display area 102A is used to display information such as images and texts. The non-display area 102B does not display information. The bottom of the non-display area 102B may be provided with functional elements such as a fingerprint module, a touch circuit, and the like.

The circuit board 103 is mounted inside the housing 105. The circuit board 103 may be a motherboard of the electronic device 100. Functional components such as a camera, a proximity sensor, and a processor may be integrated on the circuit board 103. Meanwhile, the display screen 102 may be electrically connected to the circuit board 103.

In some embodiments, Radio Frequency (RF) circuitry is disposed on the circuit board 103. The radio frequency circuit can communicate with a network device (e.g., a server, a base station, etc.) or other electronic devices (e.g., a smart phone, etc.) through a wireless network to complete information transceiving with the network device or other electronic devices.

In some embodiments, as shown in fig. 3, the rf circuit 200 includes an rf transceiver 21, a power amplifying unit 22, a filtering unit 23, an rf circuit switch chip 24, and an antenna 25. The power amplifying unit 22, the filtering unit 23, the rf circuit switch chip 24, and the antenna 25 are connected in sequence.

The radio frequency transceiver 21 has a transmission port TX and a reception port RX. The transmission port TX is used for transmitting radio frequency signals (uplink signals), and the reception port RX is used for receiving radio frequency signals (downlink signals). The transmission port TX of the radio frequency transceiver 21 is connected to the power amplification unit 22, and the reception 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 25. The filtering unit 23 is further configured to filter the downlink signal received by the antenna 25 and send the filtered downlink signal to the radio frequency transceiver 21.

The rf circuit switch chip 24 is used to selectively switch on the communication band between the rf transceiver 21 and the antenna 25. The detailed structure and function of the rf circuit switch chip 24 will be described below.

The antenna 25 is used for transmitting the uplink signal transmitted by the radio frequency transceiver 21 to the outside, or receiving a radio frequency signal from the outside, and transmitting the received downlink signal to the radio frequency transceiver 21.

In some embodiments, as shown in fig. 4, rf circuit 200 also includes control circuit 26. The control circuit 26 is connected to the rf circuit switch chip 24. The control circuit 26 may also be connected to a processor in the electronic device 100 to control the state of the rf circuit switch chip 24 according to instructions from the processor.

In some embodiments, as shown in fig. 5, the rf circuit 200 further includes a low noise amplification unit 27. A low-noise amplification unit 27 is connected between the receiving port RX of the radio frequency transceiver 21 and the filtering unit 23, and the low-noise amplification unit 27 is used for amplifying weak signals and reducing noise in downlink signals.

In some embodiments, as shown in fig. 6, rf circuit 200 also includes a Phase Shift unit 28. A phase shift unit 28 is connected between the filter unit 23 and the rf circuit switch chip 24. The phase shift unit 28 is used to adjust the phase of the signal amplitude of the upstream signal or the downstream signal.

In some embodiments, as shown in fig. 7, the rf circuit 200 further includes a low noise amplification unit 27 and a phase shift unit 28. Wherein, a low noise amplification unit 27 is connected between the receiving port RX of the radio frequency transceiver 21 and the filtering unit 23; the low-noise amplification unit 27 is used for amplifying weak signals and reducing noise in downlink signals. A phase translation unit 28 is connected between the filtering unit 23 and the radio frequency circuit switch chip 24; the phase shift unit 28 is used to adjust the phase of the signal amplitude of the upstream signal or the downstream signal.

In some embodiments, as shown in fig. 8, 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 rf transmitting ports and a plurality of rf receiving ports. The high-frequency port 21H is used for transceiving high-frequency radio frequency signals, the intermediate-frequency port 21M is used for transceiving intermediate-frequency radio frequency signals, and the low-frequency port 21L is used for transceiving low-frequency radio frequency signals.

It should be noted that the high frequency rf signal, the intermediate frequency rf signal, and the low frequency rf signal are only relative concepts, and are not absolute frequency range differentiation. For example, the low frequency signal is 700-.

For example, the radio frequency transceiver 21 includes 9 radio frequency transmission ports a1, a2, a3, a4, a5, a6, a7, a8, a9, and 9 radio frequency reception ports b1, b2, b3, b4, b5, b6, b7, b8, b 9.

Wherein, a1, a2 and a3 are intermediate frequency transmitting ports for transmitting intermediate frequency radio frequency signals (for example, radio frequency signals in bands 1, bands 3, bands 34 or bands 39). b1, b2 and b3 are intermediate frequency receiving ports for receiving intermediate frequency radio frequency signals. a4, a5 and a6 are high-frequency transmitting ports for transmitting high-frequency radio-frequency signals (for example, radio-frequency signals in bands 7, bands 40, bands 41 and other frequency bands). b4, b5 and b6 are high frequency receiving ports for receiving high frequency radio frequency signals. a7, a8 and a9 are low-frequency transmitting ports for transmitting low-frequency radio frequency signals (for example, radio frequency signals in bands 8, bands 12, bands 20 or bands 26). b7, b8, b9 are low frequency receiving ports for receiving low frequency radio frequency signals.

It should be noted that, in the above embodiment, only the high-frequency port 21H, the intermediate-frequency port 21M, and the low-frequency port 21L of the radio frequency transceiver 21 respectively include 3 radio frequency transmitting ports and3 radio frequency receiving ports are taken as an example for description. In other embodiments, the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L may further include other numbers of rf transmitting ports and rf receiving ports, respectively. It is only necessary to satisfy that the number of the radio frequency transmitting ports and the number of the radio frequency receiving ports included in the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L are the same and greater than 1.

The power amplification unit 22 includes 9

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 rf transmitting ports a1, a2, a3, a4, a5, a6, a7, a8, a9 of the rf transceiver 21.

The filtering unit 23 includes 9

duplexers

231, 232, 233, 234, 235, 236, 237, 238, 239. The

duplexers

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

amplifiers

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

duplexers

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

When the antenna 25 is a main set antenna that can be used to transmit or receive signals, the side connected to the antenna is defined as the output and the side connected to the filter is defined as the input. The input end of the radio frequency circuit switch chip 24 comprises 9 sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c 9. The sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c9 are respectively connected to the

duplexers

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

In some embodiments, as shown in fig. 9, the filtering unit 23 includes a filter 231, a filter 232, and7 duplexers 233, 234, 235, 236, 237, 238, 239. The filter 231, the filter 232, and the 7

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. The filter 231, the filter 232, and the 7

duplexers

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

When the antenna 25 is a main set antenna that can be used to transmit or receive signals, the side connected to the antenna is defined as the output and the side connected to the filter is defined as the input. The input end of the radio frequency circuit switch chip 24 comprises 9 sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c 9. 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 7

duplexers

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

It should be noted that the above embodiment only exemplifies that the filtering unit 23 includes 2 filters and7 duplexers. In other embodiments, the filtering unit 23 may further include other numbers of filters and duplexers.

In some embodiments, as shown in fig. 10 to 14, the antenna 25 may be a diversity antenna for receiving signals, and the antenna 25 is used for receiving radio frequency signals from the outside and transmitting the received downlink signals to the radio frequency transceiver 21.

As shown in fig. 10, for example, the filtering unit 23 includes 9

filters

231, 232, 233, 234, 235, 236, 237, 238, 239. The

filters

When the antenna 25 is a diversity antenna for receiving signals, the side connected to the antenna is defined as an input terminal, and the side connected to the filter is defined as an output terminal. The output end of the radio frequency circuit switch chip 24 comprises 9 sub-output ports c1, c2, c3, c4, c5, c6, c7, c8 and c 9. The sub-output ports c1, c2, c3, c4, c5, c6, c7, c8 and c9 are respectively connected to the

filters

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

The antenna 25 receives radio frequency signals from the outside, and the received downlink signals enter the filtering unit 23 through the radio frequency switch chip 24, are filtered by the filtering unit 23, and are then transmitted to the radio frequency transceiver 21.

As shown in fig. 11, the radio frequency circuit 200 further includes a phase shifting unit 28. For example, the phase shifting unit 28 comprises 9

phase shifters

281, 282, 283, 284, 285, 286, 287, 288, 289.

One end of each

phase shifter

281, 282, 283, 284, 285, 286, 287, 288, 289 is connected with each

filter

231, 232, 233, 234, 235, 236, 237, 238, 239; the other ends of the

phase shifters

281, 282, 283, 284, 285, 286, 287, 288, 289 are respectively connected to the 9 sub-output ports c1, c2, c3, c4, c5, c6, c7, c8, c9 of the rf circuit switch chip 24.

As shown in fig. 12 and 13, for example, the filtering unit 23 includes a two-in-one filter 231, a two-in-one filter 233, and filters 232, 234, 235, 236, 237, 238, and 239.

The two ports on the same side of the two-in-one filter 231 are simultaneously connected to the rf receiving ports b1 and b2 of the rf transceiver 21, and the port on the other side of the two-in-one filter 231 is connected to the sub-output port c1 of the rf circuit switch chip 24. For example, the output end of the two-in-one filter 231 is connected to the sub receiving ports b1 and b2 with the frequency bands of Band1 and Band3, the input end of the two-in-one filter 231 is connected to the output end of the rf circuit switch chip 24, and the two-in-one filter 231 is configured to filter the downlink signals of the intermediate frequency bands of Band1 and Band 3. In some embodiments, when the antenna 25 is an antenna for transmitting signals, the two-in-one filter 231 may be connected to a radio frequency transmitting port of the radio frequency transceiver 21, for example, configured to carry uplink signals of the intermediate frequency bands Band1 and Band 3.

The two ports on the same side of the two-in-one filter 233 are connected to the rf receiving ports b4 and b5 of the rf transceiver 21, and the port on the other side of the two-in-one filter 233 is connected to the sub-output port c3 of the rf circuit switch chip 24. As shown in fig. 12, for example, the output terminal of the two-in-one filter 233 is connected to the sub receiving ports b4 and b5 of the bands of Band34 and Band39, the input terminal of the two-in-one filter 233 is connected to the output terminal of the rf circuit switch chip 24, and the two-in-one filter 233 is configured to filter the downlink signals of the intermediate frequency bands of Band34 and Band 39. In some embodiments, when the antenna 25 is an antenna for transmitting signals, the two-in-one filter 233 may be connected to a radio frequency transmission port of the radio frequency transceiver 21, for example, configured to carry uplink signals of the intermediate frequency bands Band34 and Band 39. As shown in fig. 13, for example, the output terminal of the two-in-one filter 233 is connected to the sub receiving ports b4 and b5 of the bands of Band41 and Band39, the input terminal of the two-in-one filter 233 is connected to the output terminal of the rf circuit switch chip 24, and the two-in-one filter 233 is configured to filter the downlink signals of the high frequency Band41 and the intermediate frequency Band 39. In some embodiments, when the antenna 25 is an antenna for transmitting signals, the two-in-one filter 233 may be connected to a radio frequency transmitting port of the radio frequency transceiver 21, for example, configured to perform carrier aggregation on uplink signals in the high frequency Band of Band41 and the intermediate frequency Band of Band 39.

One ends of the

filters

232, 234, 235, 236, 237, 238 and 239 are respectively connected to the rf receiving ports b3, b6, b7, b8, b9, b10 and b11 of the rf transceiver 21, and the other ends of the

filters

232, 234, 235, 236, 237, 238 and 239 are respectively connected to the sub-output ports c2, c4, c5, c6, c7, c8 and c9 of the rf circuit switch chip 24. As shown in fig. 12, for example, the

filters

232, 234, 235, 236, 237, 238, 239 are respectively configured to carry uplink signals of Band25, Band41, Band40, Band7, Band26, Band8, and Band 20. As shown in fig. 13, for example, the

filters

232, 234, 235, 236, 237, 238, 239 are respectively configured to carry uplink signals of Band25, Band34, Band40, Band7, Band26, Band8, and Band 20.

As shown in fig. 14, for example, the filtering unit 23 includes a two-in-one filter 231, a three-in-one filter 233, and filters 232, 235, 236, 237, 238, and 239.

The three ports on the same side of the triple-in-one filter 233 are simultaneously connected with the rf receiving ports b4, b5, b6 of the rf transceiver 21, and the port on the other side of the triple-in-one filter 233 is connected with the sub-output port c3 of the rf circuit switch chip 24. As shown in fig. 14, for example, the output terminal of the triple-filter 233 is connected to the sub-receiving ports b4, b5, b6 of the bands of Band41, Band34, Band39, the input terminal of the two-in-one filter 233 is connected to the output terminal of the rf circuit switch chip 24, and the triple-filter 233 is configured to filter the downlink signals of the high-frequency Band41, the intermediate-frequency Band34, and the intermediate-frequency Band 39. In some embodiments, when the antenna 25 is an antenna for transmitting signals, the triple-play filter 233 may be connected to a radio frequency transmission port of the radio frequency transceiver 21, for example, configured to perform carrier aggregation on uplink signals in the high frequency Band41, the intermediate frequency Band34, and the intermediate frequency Band 39.

One end of each of the

filters

232, 235, 236, 237, 238 and 239 is connected to the rf receiving ports b3, b7, b8, b9, b10 and b11 of the rf transceiver 21, and the other end of each of the

filters

232, 235, 236, 237, 238 and 239 is connected to the sub-output ports c2, c5, c6, c7, c8 and c9 of the rf circuit switch chip 24. As shown in fig. 14, for example, the

filters

232, 235, 236, 237, 238, and 239 are respectively configured to carry the uplink signals of Band25, Band40, Band7, Band26, Band8, and Band 20.

The number and connection relationship of the filters, duplexers, phase shifters, and ports in the above embodiments are not intended to limit the present invention.

In a Long Term Evolution (LTE) communication network, according to different Duplex modes, a communication Frequency band of LTE is divided into two types, namely Frequency Division Duplex (FDD) and Time Division Duplex (TDD). In the communication frequency band in the FDD mode, the uplink and downlink communication links use different frequencies, and at this time, the rf circuit needs a duplexer to filter the uplink and downlink communication signals. In the communication frequency band in the TDD mode, the uplink and downlink communication links use the same frequency and transmit radio frequency signals in different time slots, and at this time, a filter is required in the radio frequency circuit 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 of the radio frequency signals of each frequency band transmitted by the radio frequency transceiver 21. In the frequency band of the FDD mode, a duplexer is connected with a radio frequency transmitting port and a radio frequency receiving port; in the frequency band of the TDD mode, a radio frequency transmitting port and a radio frequency receiving port are connected with a filter. For example, the Band1 and the Band2 frequency bands operate in an FDD mode, and the transmitting ports and the receiving ports of the Band1 and the Band2 radio frequency signals are connected with duplexers; and the Band40 and the Band41 frequency bands work in a TDD mode, and the transmitting ports and the receiving ports of the Band40 and the Band41 radio frequency signals are connected with filters.

Referring to fig. 15, in some embodiments, the rf circuit switch chip 24 includes a first switch 241, a second switch 242, and a frequency divider 243.

The first switch 241 is a double-pole multi-throw switch, and the second switch 242 is a single-pole multi-throw switch. For example, the antenna 25 is a diversity antenna for receiving signals, the first switch 241 includes 3 first signal type sub-output ports c1, c2, c3 and3 second signal type sub-output ports c4, c5, c6, and the first switch 241 includes a first input port 2411 and a second input port 2412; the second switch 242 includes 3 third signal type sub-output ports c7, c8, c 9. The inputs of the first switch 241 and the second switch 242 are connected to the output of the frequency divider 243.

Frequency divider 243 may be a three-frequency divider. The input of the frequency divider 243 is connected to the antenna 25.

The above connection relation merely represents direct connection between the components, and does not represent that the components connected to each other are electrically connected to each other.

In some embodiments, the sub-output ports c1, c2, c3 may be respectively connected to an intermediate frequency port in the radio frequency transceiver 21, the sub-output ports c4, c5, c6 may be respectively connected to a high frequency port in the radio frequency transceiver 21, and the sub-output ports c7, c8, c9 may be respectively connected to a low frequency port in the radio frequency transceiver 21.

When the first input port 2411 of the switch 241 is turned on any one of c1, c2 and c3, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, and the switch 242 is turned off, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal and an intermediate frequency signal.

When the first input port 2411 of the switch 241 is turned on any one of c1, c2 and c3, the second input port 2412 of the switch 241 is turned off, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal. Or when the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into the intermediate frequency signal and the low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal and a low frequency signal. Or when the first input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, the second input port 2412 of the switch 241 is turned off, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 turns on any one of c1, c2 and c3, the second input port 2412 of the switch 241 turns on any one of c4, c5 and c6, and the switch 242 turns on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal and a low frequency signal. Or when the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, the first input port 2411 of the switch 241 is turned on any one of c4, c5 and c6, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal and a low frequency signal.

In some embodiments, the device location of the frequency divider 243 may also be replaced by a combiner 2453, and the combiner 243 is used to realize carrier aggregation of multi-band signals when the antenna 25 is a main set antenna for transmitting signals or receiving signals.

Referring to fig. 16, in some embodiments, the radio frequency circuit switch chip 24 includes a first switch 241, a second switch 242, a first frequency divider 244, and a second frequency divider 245.

The first switch 241 is a three-pole multi-throw switch, and the second switch 242 is a single-pole multi-throw switch. When the antenna 25 is a diversity antenna for receiving signals, the first switch 241 is used for receiving high frequency signals or intermediate frequency signals, and the second switch 242 is used for receiving low frequency signals.

The first switch 241 includes a first input port 2411, a second input port 2412, and a third input port 2413. For example, the first switch 241 further includes 3 first signal type sub-output ports c1, c2, c3 and3 second signal type sub-output ports c4, c5, c6, and further includes an output port c10 for connecting the first frequency divider; the second switch 242 includes 3 third signal type sub-output ports c7, c8, c 9.

The first input port 2411 of the first switch 241 is connected to the first output port of the first frequency divider 244; the second input port 2412 of the first switch 241 is connected to the second output port of the first frequency divider 244; the third input port 2413 of the first switch 241 is connected to the first output port of the second frequency divider 245; and an input of the second switch 242 is connected to a second output port of the second frequency divider 245.

When the first input port 2411 and the second input port 2412 of the first switch 241 respectively turn on the output terminal of the first frequency divider 244, the input terminal (c10) of the first frequency divider 244 turns on the second frequency divider 245 through the third input port 2413 of the first switch 241, and the second switch 242 and the second frequency divider 245 are turned on, the second frequency divider 245 divides the received signal into a low frequency signal and a first frequency divided signal, and the first frequency divider 244 divides the first frequency divided signal into an intermediate frequency signal and a high frequency signal.

When the first switch 241 and the first frequency divider 244 are disconnected and the third input port 2413 of the first switch 241 and the second switch 242 are connected to the second frequency divider 245, respectively, the second frequency divider 245 divides the received signal into an intermediate frequency signal and a low frequency signal or a high frequency signal and a low frequency signal.

When the first input port 2411 of the first switch 241 is turned on any one of c1, c2 and c3, the second input port 2412 is turned on any one of c4, c5 and c6, the first input port 2411 and the second input port 2412 of the first switch 241 are respectively turned on the output end of the first frequency divider 244, the input end (c10) of the first frequency divider 244 is turned on the second frequency divider 245 through the third input port 2413 of the first switch 241, the switch 242 is turned on any one of c7, c8 and c9, the second switch 242 and the second frequency divider 245 are turned on, the second frequency divider 245 divides the received signal into a low frequency signal and a first frequency divided signal, and the first frequency divided signal is divided into an intermediate frequency signal and a high frequency signal by the first frequency divider 244.

When the first switch 241 and the first frequency divider 244 are disconnected, the third input port of the first switch 241 is connected to any one of c1, c2 and c3, the switch 242 is connected to any one of c7, c8 and c9, and the third input port 2413 of the first switch 241 and the second switch 242 are respectively connected to the second frequency divider 245, the second frequency divider 245 divides the received signal into an intermediate frequency signal and a low frequency signal.

When the first switch 241 and the first frequency divider 244 are disconnected, the third input port of the first switch 241 is connected to any one of c4, c5 and c6, the switch 242 is connected to any one of c7, c8 and c9, and the third input port 2413 of the first switch 241 and the second switch 242 are respectively connected to the second frequency divider 245, the second frequency divider 245 divides the received signal into a high frequency signal and a low frequency signal.

The first frequency divider 244 and the second frequency divider 245 are dual frequency dividers. The input of the second frequency divider 245 is connected to the antenna 25.

In some embodiments, the first switch 241 and the second switch 242 are packaged to form a first chip 247.

For example, the sub-output port c2 may be connected to a mid-Band 3 receiving port in the radio frequency transceiver 21, the sub-output port c5 may be connected to a high-Band 40 receiving port in the radio frequency transceiver 21, and the sub-output port c8 may be connected to a low-Band 8 receiving port in the radio frequency transceiver 21.

When the first input port 2411 of the first switch 241 turns on c2, the second input port 2412 turns on c5, and the first input port 2411 and the second input port 2412 of the first switch 241 turn on the output terminal of the first frequency divider 244, respectively, the input terminal (c10) of the first frequency divider 244 turns on the second frequency divider 245 through the third input port 2413 of the first switch 241, and the switch 242 turns on c8, and the second switch 242 and the second frequency divider 245 turn on, the second frequency divider 245 divides the received signal into the low frequency signal Band8 and the first frequency divided signal, and the first frequency divider 244 divides the first frequency divided signal into the intermediate frequency signal Band3 and the high frequency signal Band 40.

When the first switch 241 is disconnected from the first frequency divider 244, the third input port of the first switch 241 is turned on c2, the switch 242 is turned on c8, and the third input port 2413 of the first switch 241 and the second switch 242 are connected to the second frequency divider 245, respectively, the second frequency divider 245 frequency-divides the received signal into an intermediate frequency signal Band3 and a low frequency signal Band 8.

When the first switch 241 is disconnected from the first frequency divider 244, the third input port of the first switch 241 is turned on c5, the switch 242 is turned on c8, and the third input port 2413 of the first switch 241 and the second switch 242 are connected to the second frequency divider 245, respectively, the second frequency divider 245 frequency-divides the received signal into a high frequency signal Band40 and a low frequency signal Band 8.

In some embodiments, the device positions of the first frequency divider 244 and the second frequency divider 245 may also be replaced by the first combiner 244 and the second combiner 245, respectively, and when the antenna 25 is a main set antenna for transmitting signals or receiving signals, the first combiner 244 and the second combiner 245 are used for implementing carrier aggregation of multi-band signals.

Referring to fig. 17, fig. 17 is a schematic structural diagram of the rf circuit 200. Wherein, the radio frequency transceiver 21 includes 9 radio frequency transmitting ports a1, a2, a3, a4, a5, a6, a7, a8, a9, and 9 radio frequency receiving ports b1, b2, b3, b4, b5, b6, b7, b8, b 9.

For example, the filtering unit 23 includes 9

filters

231, 232, 233, 234, 235, 236, 237, 238, 239. The

filters

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

The rf circuit switch chip 24 includes a first switch 241, a second switch 242, a first frequency divider 244, and a second frequency divider 245.

Therefore, by adopting the technical scheme, the frequency of the received signal is selectively divided into the low-frequency signal and the intermediate-frequency signal, or the low-frequency signal and the high-frequency signal, or the low-frequency signal, the intermediate-frequency signal and the high-frequency signal, so that the diversity of the frequency division of the carrier aggregation signal by the electronic equipment can be improved.

Continuing with reference to fig. 1 and 2. Wherein the battery 104 is mounted inside the housing 105. The battery 104 is used to provide power to the electronic device 100.

The housing 105 is used to form the outer contour of the electronic device 100. The material of the housing 105 may be plastic or metal. The housing 105 may be integrally formed.

Referring to fig. 18, fig. 18 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present invention. The electronic device 100 includes an antenna apparatus 10, a memory 20, a display unit 30, a power supply 40, and a processor 50. Those skilled in the art will appreciate that the configuration of the electronic device 100 shown in fig. 18 does not constitute a limitation of the electronic device 100. Electronic device 100 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The antenna device 10 includes the rf circuit 200 described in any of the above embodiments. The antenna device 10 can communicate with a network device (e.g., a server) or other electronic devices (e.g., a smart phone) through a wireless network, and complete information transceiving with the network device or other electronic devices.

The memory 20 may be used to store applications and data. The memory 20 stores applications containing executable program code. The application programs may constitute various functional modules. The processor 50 executes various functional applications and data processing by running the application programs stored in the memory 20.

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

The power supply 40 is used to power the various components of the electronic device 100. In some embodiments, power supply 40 may be logically coupled to processor 50 through a power management system, such that functions to manage charging, discharging, and power consumption management are performed through the power management system.

The processor 50 is the 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 and processes data by running or executing an application program stored in the memory 20 and calling data stored in the memory 20, thereby monitoring the electronic device 100 as a whole.

In addition, the electronic device 100 may further include a camera module, a bluetooth module, and the like, which 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 invention are described in detail above, and the principle and the implementation manner of the present invention are explained in this document by applying specific examples, and the description of the above embodiments is only used to help understanding of the present invention. Meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A radio frequency circuit switch chip is characterized in that the radio frequency circuit switch chip is used for selectively switching on a communication frequency band between a radio frequency transceiver and an antenna, and comprises a first switch, a second switch, a first frequency divider and a second frequency divider; the first switch and the second switch are packaged to form a first chip; the first switch includes: sub-output ports c1, c2, c3, c4, c5, c 6; the second switch includes: sub-output ports c7, c8, c 9;

when the first switch is disconnected from the first frequency divider, and the third input port of the first switch and the second switch are respectively connected with the second frequency divider, the second frequency divider divides a received signal into an intermediate frequency signal and a low frequency signal or a high frequency signal and a low frequency signal;

the method specifically comprises the following steps:

when the first input port of the first switch is connected with c2, the second input port is connected with c5, the first input port and the second input port of the first switch are respectively connected with the output end of the first frequency divider, the input end of the first frequency divider is connected with the second frequency divider through the third input port of the first switch, the second switch is connected with any one of c7, c8 and c9, the second switch and the second frequency divider are connected, the second frequency divider divides the received signal into a low-frequency signal Band8 and a first frequency-divided signal, and the first frequency divider divides the first frequency-divided signal into an intermediate-frequency signal Band 85 3 and a high-frequency signal Band 40;

when the first switch is disconnected from the first frequency divider, the third input port of the first switch is connected with c2, the second switch is connected with c8, and the third input port of the first switch and the second switch are respectively connected with the second frequency divider, the second frequency divider divides the received signal into an intermediate frequency signal Band3 and a low frequency signal Band 8;

when the first switch is disconnected from the first frequency divider, the third input port of the first switch is connected with c5, the second switch is connected with c8, and the third input port of the first switch and the second switch are respectively connected with the second frequency divider, the second frequency divider divides the received signal into a high-frequency signal Band40 and a low-frequency signal Band 8;

the output end of the two-in-one filter is connected with the sub receiving ports b1 and b2 of the radio frequency transceivers with the frequency bands of Band1 and Band3, the input end of the two-in-one filter is connected with the output end of the radio frequency circuit switch chip, and the two-in-one filter is configured to filter the downlink signals of the intermediate frequency bands of Band1 and Band 3; when the antenna is used for transmitting signals, the two-in-one filter is connected with a radio frequency transmitting port of a radio frequency transceiver and is configured to perform carrier aggregation on uplink signals of intermediate frequency bands Band1 and Band 3;

the output end of the three-in-one filter is connected with sub receiving ports b4, b5 and b6 of radio frequency transceivers with frequency bands of Band41, Band34 and Band39, the input end of the three-in-one filter is connected with the output end of the radio frequency circuit switch chip, and the three-in-one filter is configured to filter downlink signals of a high-frequency Band of Band41, an intermediate-frequency Band of Band34 and an intermediate-frequency Band of Band 39; when the antenna is used for transmitting signals, the three-in-one filter is connected with a radio frequency transmitting port of the radio frequency transceiver and is configured to perform carrier aggregation on uplink signals of a high-frequency Band41, an intermediate-frequency Band34 and an intermediate-frequency Band 39.

2. The radio frequency circuit switch chip of claim 1, wherein:

a first input port of the first switch is connected with a first output port of the first frequency divider;

a second input port of the first switch is connected with a second output port of the first frequency divider;

a third input port of the first switch is connected with a first output port of the second frequency divider; and

and the input end of the second switch is connected with the second output port of the second frequency divider.

3. The rf circuit switch chip of claim 1 or 2, wherein the first frequency divider and the second frequency divider are dual frequency dividers.

4. A radio frequency circuit is characterized by comprising a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are sequentially connected; the radio frequency circuit switch chip is used for selectively switching on a communication frequency band between the radio frequency transceiver and an antenna,

the radio frequency circuit switch chip comprises a first switch, a second switch, a first frequency divider and a second frequency divider; the first switch and the second switch are packaged to form a first chip; the first switch includes: sub-output ports c1, c2, c3, c4, c5, c 6; the second switch includes: sub-output ports c7, c8, c 9;

the method specifically comprises the following steps:

5. The radio frequency circuit of claim 4, wherein:

a third input port of the first switch is connected with a first output port of the second frequency divider;

the input end of the second switch is connected with the second output port of the second frequency divider; and

the input end of the second frequency divider is connected with the antenna.

6. The RF circuit of claim 5, wherein the RF transceiver comprises a high frequency port, an intermediate frequency port, and a low frequency port, the high frequency port and the intermediate frequency port are respectively connected to corresponding output ports of the first switch, and the low frequency port is connected to an output terminal of the second switch.

7. The radio frequency circuit of claim 6, wherein:

the high-frequency port comprises N1 sub transmitting ports of different frequency bands and N1 sub receiving ports of different frequency bands, the intermediate-frequency port comprises N2 sub transmitting ports of different frequency bands and N2 sub receiving ports of different frequency bands, the output port of the first switch comprises N1 first signal type sub output ports and N2 second signal type sub output ports, and the N1 sub transmitting ports and the N1 sub receiving ports are respectively connected with the N1 first signal type sub output ports one by one; the N2 sub transmitting ports and the N2 sub receiving ports are respectively connected with the N2 second signal type sub output ports in a one-to-one mode;

the low-frequency port comprises N3 sub transmitting ports with different frequency bands and N3 sub receiving ports with different frequency bands, the output end of the second switch comprises N3 sub output ports, and the N3 sub transmitting ports and the N3 sub receiving ports are respectively connected with the N3 sub output ports one by one;

wherein N1, N2 and N3 are all natural numbers larger than 1.

8. The RF circuit of claim 7, wherein a low noise amplifier is further connected between the RF transceiver and the RF circuit switch chip, and the low noise amplifier is connected between each sub-receiving port and each sub-output port.

9. The RF circuit of claim 7, further comprising a filtering unit connected between the RF transceiver and the RF circuit switch chip, wherein the filtering unit includes a plurality of duplexers or filters, and the duplexers or filters are connected between each of the sub-transmitting ports and each of the sub-receiving ports and each of the sub-output ports.

10. An antenna arrangement, characterized in that the antenna arrangement comprises a radio frequency circuit according to any of claims 4 to 9.

11. An electronic device, comprising a housing and a circuit board, wherein the circuit board is mounted inside the housing, and a radio frequency circuit is disposed on the circuit board, and the radio frequency circuit is the radio frequency circuit according to any one of claims 4 to 9.