CN112838878A - Radio frequency system, radio frequency front end and mobile terminal - Google Patents
Radio frequency system, radio frequency front end and mobile terminal Download PDFInfo
- Publication number
- CN112838878A CN112838878A CN201911058292.3A CN201911058292A CN112838878A CN 112838878 A CN112838878 A CN 112838878A CN 201911058292 A CN201911058292 A CN 201911058292A CN 112838878 A CN112838878 A CN 112838878A
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- frequency band
- filter
- branch
- pass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The invention relates to a radio frequency system, a radio frequency front end and a mobile terminal, wherein the radio frequency system is connected with a radio frequency transceiver circuit and comprises an antenna and a filter circuit; the antenna is used for receiving/transmitting wireless signals; the filter circuit comprises a first filter branch and a second filter branch, one end of the first filter branch is connected with one end of the second filter branch to form a common end, the common end is connected with the antenna, and the other end of the first filter branch and the other end of the second filter branch are respectively connected with the radio frequency transceiver circuit; the first filtering branch is used for allowing a transmitting signal of a first preset frequency band to pass through and isolating a receiving/transmitting signal outside the first preset frequency band; the second filtering branch is used for allowing the received signal of the second preset frequency band to pass through and isolating the received/transmitted signal outside the second preset frequency band.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a radio frequency system, a radio frequency front end, and a mobile terminal.
Background
Long Term Evolution (LTE) is the third generation mobile communication partner organization (3)rdGeneration Partnership Project, abbreviation: 3GPP) of the Universal Mobile Telecommunications System (short for: UMTS) long term evolution of the technology standard.
According to the different Duplex modes, LTE is divided into two types, Frequency Division Duplex (FDD) and Time Division Duplex (TDD). In the FDD mode, different frequency points are used by an uplink channel and a downlink channel, and frames with fixed time lengths are adopted for uplink and downlink transmission; in the TDD mode, the uplink and downlink share the same frequency and are transmitted in different time slots.
The FDD frequency band comprises a band11 and a band21, and currently, a radio frequency front-end circuit for simultaneously supporting the band11 and the band21 is complex, has many components and occupies a large area of a circuit board.
Disclosure of Invention
Therefore, it is necessary to provide a radio frequency system, a radio frequency front end and a mobile terminal for solving the problems of complex radio frequency front end circuit, many components and large occupied circuit board area, which simultaneously support the band11 and the band21 frequency bands.
A radio frequency system, the radio frequency system coupled to a radio frequency transceiver circuit, comprising:
an antenna for receiving/transmitting a wireless signal;
the filter circuit comprises a first filter branch and a second filter branch, one end of the first filter branch is connected with one end of the second filter branch to form a common end, the common end is connected with the antenna, and the other end of the first filter branch and the other end of the second filter branch are respectively connected with the radio frequency transceiver circuit;
the first filtering branch circuit is used for allowing a transmitting signal of a first preset frequency band to pass through and isolating receiving/transmitting signals outside the first preset frequency band;
the second filtering branch is used for allowing the received signals of a second preset frequency band to pass through and isolating the received/transmitted signals outside the second preset frequency band.
In one embodiment, the first filtering branch comprises:
a first band pass filter for allowing a transmission signal of a first preset frequency band to pass; and
and the low-pass filter is used for allowing the first preset frequency band and the transmission signals smaller than the first preset frequency band to pass through.
In one embodiment, the second filtering branch comprises:
a second band-pass filter for allowing a reception signal of a second preset frequency band to pass; and
and the high-pass filter is used for allowing the second preset frequency band and the received signals larger than the second preset frequency band to pass through.
In one embodiment, the first filtering branch further includes:
a first matching network for matching impedance between the antenna and the radio frequency transceiving circuit;
the second filtering branch further comprises:
and the second matching network is used for matching the impedance between the antenna and the radio frequency transceiving circuit.
In one embodiment, the first predetermined frequency range is 1427.9 MHz-1462.9 MHz, and the second predetermined frequency range is 1475.9 MHz-1510.9 MHz.
In one embodiment, the radio frequency transceiver further comprises a low noise amplifier, wherein the low noise amplifier is connected between the filter circuit and the radio frequency transceiver circuit and is used for amplifying the power of a received signal.
In one embodiment, the radio frequency transceiver further comprises a power amplifier, wherein the power amplifier is connected between the filter circuit and the radio frequency transceiver circuit and is used for amplifying the power of the transmission signal.
A radio frequency front end, comprising:
the antenna, the filter circuit and the radio frequency transceiver circuit;
the antenna is used for receiving/transmitting wireless signals;
the filter circuit comprises a first filter branch and a second filter branch, one end of the first filter branch is connected with one end of the second filter branch to form a common end, the common end is connected with the antenna, and the other end of the first filter branch and the other end of the second filter branch are respectively connected with the radio frequency transceiver circuit;
the first filtering branch circuit is used for allowing a transmitting signal of a first preset frequency band to pass through and isolating receiving/transmitting signals outside the first preset frequency band;
the second filtering branch is used for allowing the received signals of a second preset frequency band to pass through and isolating the received/transmitted signals outside the second preset frequency band;
the radio frequency transceiver circuit is used for converting the received signal into a baseband signal or converting the baseband signal into the transmitting signal.
A mobile terminal comprises the radio frequency system or the radio frequency front end.
According to the radio frequency system, the radio frequency front end and the mobile terminal, the antenna receives/transmits wireless signals, the first filtering branch allows transmission signals of a first preset frequency band to pass through, and simultaneously isolates receiving/transmitting signals outside the first preset frequency band, the second filtering branch allows receiving signals of a second preset frequency band to pass through, and simultaneously isolates receiving/transmitting signals outside the second preset frequency band, so that the working frequency bands of the first filtering branch and the second filtering branch can be set according to actual needs, the circuit is simple, the occupied circuit board area is small, and the cost is low.
Drawings
Fig. 1 is a schematic structural diagram of a mobile terminal in an embodiment;
FIG. 2 is a schematic diagram of an embodiment of an RF front end;
fig. 3 is a schematic structural diagram of an rf front end in another embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment. The mobile terminal includes a memory 10, a processor 20, a radio frequency front end 30, a network module 40, an audio output module 50, an audio/video input module 60, a sensor 70, a display module 80, a user input module 90, an interface module 101, and a power supply 102. The mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, and the like.
The memory 10 may be used to store software programs and various data. The memory 10 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application program (such as a sound playing function, an image playing function, etc.) required by the function; the data storage area may store data (such as audio data) created according to the use of the mobile terminal. Further, the memory 10 may include high speed random access memory 10, and may also include non-volatile memory 10, such as at least one piece of disk memory 10, flash memory device, or other piece of volatile solid state memory 10.
The processor 20, which serves as a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing an application program stored in the memory 10 and calling data stored in the memory 10, thereby integrally monitoring the mobile terminal.
The radio frequency front end 30 is used for receiving and transmitting signals in the process of information receiving and transmitting or communication, and specifically, the radio frequency front end 30 receives downlink data from a base station and then processes the downlink data to the processor 20; uplink data is also transmitted to the base station. In addition, the radio frequency front end 30 may also communicate with networks and other devices via a wireless communication system.
Referring to fig. 2 and fig. 3, the rf front end 30 includes an rf system 31 and an rf transceiver circuit 32. The rf system 31 is connected to an rf transceiver circuit 32. The rf system 31 includes an antenna 311, a filter circuit 312, a low noise amplifier 313 and a power amplifier 314.
The antenna 311 is used for receiving/transmitting wireless signals.
The filter circuit 312 includes a first filter branch 33 and a second filter branch 34. One end of the first filtering branch 33 is connected to one end of the second filtering branch 34 to form a common end, the common end is connected to the antenna 311, and the other ends of the first filtering branch 33 and the second filtering branch 34 are respectively connected to the rf transceiver circuit 32. The first filtering branch 33 is configured to allow the transmission signal in the first predetermined frequency band to pass through, and simultaneously isolate the receiving/transmitting signal outside the first predetermined frequency band. The second filtering branch 34 is configured to allow the received signal in the second predetermined frequency band to pass through, and simultaneously isolate the received/transmitted signal outside the second predetermined frequency band.
The transmitting signal of the first preset frequency band is uplink data, and the receiving signal of the second preset frequency band is downlink data.
In one embodiment, the filter circuit 312 is a duplexer.
The first filtering branch 33 includes a first band-pass filter 331, a low-pass filter 332 and a first matching network 333.
The first band pass filter 331 is for allowing a transmission signal of a first preset frequency band to pass. The low pass filter 332 is used to allow the transmission signal of the first predetermined frequency band and less than the first predetermined frequency band to pass through. The first band-pass filter 331 may be a Bulk Acoustic Wave (BAW) Filter (FT), and according to the requirement of the LTE frequency band of the system, the BAW filter of the corresponding frequency band is required to be used for filtering. In this embodiment, the frequency band of the signal to be transmitted is a first predetermined frequency band, and the first bandpass filter 331 is configured to enable the transmission signal of the first predetermined frequency band to pass through, and to isolate the receiving/transmitting signal outside the first predetermined frequency band. The BAW filter is adopted as the first bandpass filter 331, so that the insertion loss of the transmission signal in the first preset frequency band is less than 2dB, and the suppression degree outside the first preset frequency band is 30 dB. The Low pass filter 332 may be a Low Temperature Co-fired Ceramic (LTCC) filter. The low pass filter 332 allows the first predetermined frequency band and the transmission signals smaller than the first predetermined frequency band to pass through, while isolating the reception/transmission signals larger than the first predetermined frequency band. The low-pass filter 332 adopts a low-temperature co-fired ceramic filter, so that the insertion loss of the transmission signal in the first preset frequency band and the insertion loss of the transmission signal in the first preset frequency band are less than 1dB, and the suppression degree of the transmission/reception signal in the first preset frequency band is 20 dB. The first band-pass filter 331 and the low-pass filter 332 cooperate to allow the first filtering branch 33 to allow the transmission signal in the first predetermined frequency band to pass through, and simultaneously isolate the receiving/transmitting signal outside the first predetermined frequency band, so that the insertion loss of the transmitting signal in the first predetermined frequency band is less than 3dB, and the suppression degree of the receiving/transmitting signal outside the first predetermined frequency band is 55 dB.
The first matching network 333 is used to match the impedance between the antenna 311 and the rf transceiver circuit 32 to suppress the return loss. The first matching network 333 enables the antenna 311 and the rf transceiver circuit 32 to form a good impedance matching therebetween, and further has a small reflection coefficient, so as to efficiently transmit the transmission signal to the antenna 311 and transmit the transmission signal. Impedance matching can be described in terms of return loss or standing wave ratio magnitude.
The second filtering branch 34 includes a second band-pass filter 341, a high-pass filter 342, and a second matching network 343.
The second band pass filter 341 is configured to allow the received signal of the second predetermined frequency band to pass. The high pass filter 342 is used for allowing the second predetermined frequency band and the received signals larger than the second predetermined frequency band to pass through. The second band-pass filter 341 may be a Bulk Acoustic Wave (BAW) filter, and according to the LTE frequency band requirement of the system, the BAW filter of the corresponding frequency band needs to be used for filtering. In this embodiment, the frequency band of the signal to be received is a second predetermined frequency band, and the second band-pass filter 341 is configured to enable the received signal of the second predetermined frequency band to pass through, and to isolate the received/transmitted signal outside the second predetermined frequency band. The second band pass filter 341 using the BAW filter may enable the insertion loss of the received signal in the second predetermined frequency band to be less than 2dB, and the suppression degree outside the second predetermined frequency band to be greater than 30 dB. The high pass filter 342 may be a Low Temperature Co-fired Ceramic (LTCC) filter. The high pass filter 342 allows the received signals in the second predetermined frequency band and greater than the second predetermined frequency band to pass through, while isolating the received/transmitted signals in the less than second predetermined frequency band. The high-pass filter 342 adopts a low-temperature co-fired ceramic filter, so that the insertion loss of the received signal in the second preset frequency band and the insertion loss of the received signal in the second preset frequency band are less than 1dB, and the suppression degree of the received/transmitted signal in the second preset frequency band is 20 dB. The combined action of the second band-pass filter 341 and the high-pass filter 342 allows the second filtering branch 34 to allow the received signal in the second predetermined frequency band to pass through, and simultaneously isolates the received/transmitted signal outside the second predetermined frequency band, so that the insertion loss of the received signal in the second predetermined frequency band is less than 3dB, the suppression degree of the received/transmitted signal outside the second predetermined frequency band is 55dB, and the improvement of the sensitivity of the radio frequency system 31 for receiving the signal is facilitated.
The second matching network 343 is used for matching the impedance between the antenna 311 and the rf transceiver circuit 32 to suppress the return loss. The second matching network 343 forms a better impedance matching between the antenna 311 and the rf transceiver circuit 32, and further has a smaller reflection coefficient, thereby efficiently transmitting the received signal to the rf transceiver circuit 32.
In one embodiment, the first predetermined frequency range is 1427.9 MHz-1462.9 MHz, and the second predetermined frequency range is 1475.9 MHz-1510.9 MHz.
The low noise amplifier 313 is connected between the filter circuit 312 and the rf transceiver circuit 32, and specifically, the low noise amplifier 313 is connected between the second filter branch 34 and the rf transceiver circuit 32. The low noise amplifier 313 is used for amplifying the power of the received signal to reduce the noise figure of the radio frequency path and improve the receiving sensitivity index.
The power amplifier 314 is connected between the filter circuit 312 and the rf transceiver circuit 32, and specifically, the power amplifier 314 is connected between the first filter branch 33 and the rf transceiver circuit 32. The power amplifier 314 is used to amplify the power of the transmit signal.
The rf transceiver circuit 32 is used to convert the received signal into a baseband signal, or convert the baseband signal into a transmitted signal.
The network module 40 is used for enabling the mobile terminal to access the internet through a wireless network, such as sending and receiving mails, browsing web pages, and the like.
The audio output module 50 may convert audio data received by the radio frequency front end 30 or the network module 40 or stored in the memory 10 into a sound signal and output as sound. The audio output module 50 may also provide audio output related to the particular functions performed by the mobile terminal.
The audio/video input module 60 is used to receive audio or video signals. The audio-video input module 60 may include a graphics processor and a microphone, the graphics processor processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed by the display module 80. The image frames processed by the graphics processor may be stored in the memory 10 (or other storage medium) or transmitted via the radio frequency front end 30 or the network module 40. The microphone may receive sound via the microphone in a phone call mode, a recording mode, a voice recognition mode, or the like, and process the sound into an audio signal. The processed audio signals may be converted in a telephone conversation mode to a format output that may be transmitted to a base station via the radio frequency front end 30.
The sensors 70 include light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display module 80 according to the brightness of ambient light, and the proximity sensor can turn off the brightness display of the display module 80 when the mobile terminal is close to the ear of the user. The motion sensor may comprise an accelerometer sensor. The mobile terminal may further include a fingerprint sensor, a pressure sensor, an iris sensor, an infrared sensor, etc., which will not be described herein.
The display module 80 is used to display information input by the user or information provided to the user. The display module 80 may include a display panel. The display panel may be configured in the form of a liquid crystal display or an organic light emitting diode, or the like.
The user input module 90 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. In particular, the user input module 90 may include a touch screen and other input devices. Other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
The interface module 101 is used as an interface for connecting the mobile terminal with an external device. The interface module 101 may include a headset port, a power port, a data port, a memory card port, an audio input/output port, a video input/output port, and the like. The mobile terminal performs data transmission with an external device through the interface module 101.
The power supply 102 is used to power various components of the mobile terminal.
According to the radio frequency system, the radio frequency front end and the mobile terminal, the antenna receives/transmits wireless signals, the first filtering branch allows transmission signals of a first preset frequency band to pass through, and simultaneously isolates receiving/transmitting signals outside the first preset frequency band, the second filtering branch allows receiving signals of a second preset frequency band to pass through, and simultaneously isolates receiving/transmitting signals outside the second preset frequency band, so that the working frequency bands of the first filtering branch and the second filtering branch can be set according to actual needs, the circuit is simple, the occupied circuit board area is small, and the cost is low.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A radio frequency system, the radio frequency system being connected to a radio frequency transceiver circuit, comprising:
an antenna for receiving/transmitting a wireless signal;
the filter circuit comprises a first filter branch and a second filter branch, one end of the first filter branch is connected with one end of the second filter branch to form a common end, the common end is connected with the antenna, and the other end of the first filter branch and the other end of the second filter branch are respectively connected with the radio frequency transceiver circuit;
the first filtering branch circuit is used for allowing a transmitting signal of a first preset frequency band to pass through and isolating receiving/transmitting signals outside the first preset frequency band;
the second filtering branch is used for allowing the received signals of a second preset frequency band to pass through and isolating the received/transmitted signals outside the second preset frequency band.
2. The radio frequency system of claim 1, wherein the first filtering branch comprises:
a first band pass filter for allowing a transmission signal of a first preset frequency band to pass; and
and the low-pass filter is used for allowing the first preset frequency band and the transmission signals smaller than the first preset frequency band to pass through.
3. The radio frequency system according to claim 1 or 2, wherein the second filtering branch comprises:
a second band-pass filter for allowing a reception signal of a second preset frequency band to pass; and
and the high-pass filter is used for allowing the second preset frequency band and the received signals larger than the second preset frequency band to pass through.
4. The radio frequency system of claim 2, wherein the first filtering branch further comprises:
a first matching network for matching impedance between the antenna and the radio frequency transceiving circuit;
the second filtering branch further comprises:
and the second matching network is used for matching the impedance between the antenna and the radio frequency transceiving circuit.
5. The radio frequency system according to claim 1, wherein the first predetermined frequency band has a frequency of 1427.9 MHz-1462.9 MHz, and the second predetermined frequency band has a frequency of 1475.9 MHz-1510.9 MHz.
6. The radio frequency system according to claim 1, further comprising a low noise amplifier connected between the filter circuit and the radio frequency transceiver circuit for amplifying power of a received signal.
7. The radio frequency system according to claim 1, further comprising a power amplifier connected between the filter circuit and the radio frequency transceiver circuit for amplifying power of the transmission signal.
8. A radio frequency front end, comprising:
the antenna, the filter circuit and the radio frequency transceiver circuit;
the antenna is used for receiving/transmitting wireless signals;
the filter circuit comprises a first filter branch and a second filter branch, one end of the first filter branch is connected with one end of the second filter branch to form a common end, the common end is connected with the antenna, and the other end of the first filter branch and the other end of the second filter branch are respectively connected with the radio frequency transceiver circuit;
the first filtering branch circuit is used for allowing a transmitting signal of a first preset frequency band to pass through and isolating receiving/transmitting signals outside the first preset frequency band;
the second filtering branch is used for allowing the received signals of a second preset frequency band to pass through and isolating the received/transmitted signals outside the second preset frequency band;
the radio frequency transceiver circuit is used for converting the received signal into a baseband signal or converting the baseband signal into the transmitting signal.
9. A mobile terminal comprising a radio frequency system according to any of claims 1-7 or comprising a radio frequency front end according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058292.3A CN112838878A (en) | 2019-11-01 | 2019-11-01 | Radio frequency system, radio frequency front end and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058292.3A CN112838878A (en) | 2019-11-01 | 2019-11-01 | Radio frequency system, radio frequency front end and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112838878A true CN112838878A (en) | 2021-05-25 |
Family
ID=75921354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911058292.3A Pending CN112838878A (en) | 2019-11-01 | 2019-11-01 | Radio frequency system, radio frequency front end and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112838878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676575A (en) * | 2021-08-17 | 2021-11-19 | 维沃移动通信有限公司 | Antenna module and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237866A (en) * | 1998-05-27 | 1999-12-08 | 诺基亚流动电话有限公司 | Transceiver for wireless communication |
| CN102082581A (en) * | 2009-12-01 | 2011-06-01 | 中国移动通信集团公司 | Mobile communication terminal and method and system for implementing coexistence of different communication systems by same |
| CN103338054A (en) * | 2013-06-09 | 2013-10-02 | 华为终端有限公司 | Multi-frequency common antenna system, radio frequency front end and multi-frequency communication device |
| CN106209120A (en) * | 2016-06-30 | 2016-12-07 | 维沃移动通信有限公司 | A kind of radio circuit and mobile terminal |
| CN108768432A (en) * | 2018-05-22 | 2018-11-06 | Oppo广东移动通信有限公司 | Radio circuit and electronic equipment |
-
2019
- 2019-11-01 CN CN201911058292.3A patent/CN112838878A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237866A (en) * | 1998-05-27 | 1999-12-08 | 诺基亚流动电话有限公司 | Transceiver for wireless communication |
| CN102082581A (en) * | 2009-12-01 | 2011-06-01 | 中国移动通信集团公司 | Mobile communication terminal and method and system for implementing coexistence of different communication systems by same |
| CN103338054A (en) * | 2013-06-09 | 2013-10-02 | 华为终端有限公司 | Multi-frequency common antenna system, radio frequency front end and multi-frequency communication device |
| CN106209120A (en) * | 2016-06-30 | 2016-12-07 | 维沃移动通信有限公司 | A kind of radio circuit and mobile terminal |
| CN108768432A (en) * | 2018-05-22 | 2018-11-06 | Oppo广东移动通信有限公司 | Radio circuit and electronic equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676575A (en) * | 2021-08-17 | 2021-11-19 | 维沃移动通信有限公司 | Antenna module and electronic equipment |
| WO2023020510A1 (en) * | 2021-08-17 | 2023-02-23 | 维沃移动通信有限公司 | Antenna module and electronic apparatus |
| CN113676575B (en) * | 2021-08-17 | 2024-04-09 | 维沃移动通信有限公司 | Antenna module and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020215965A1 (en) | Terminal control method and terminal | |
| EP3917020A1 (en) | Signal transceiving apparatus and terminal device | |
| CN110401473B (en) | Method for dynamically adjusting transmission power, mobile terminal and storage medium | |
| CN109819450B (en) | Signal receiving method, device and terminal | |
| CN110289885B (en) | Antenna tuning method and terminal | |
| WO2020259296A1 (en) | Radio frequency circuit and terminal | |
| CN108495289B (en) | D2D communication method, mobile terminal and radio frequency module | |
| KR101713930B1 (en) | Apparatus for transmitting of portable terminal and operation method thereof | |
| CN110336623B (en) | Power detection method and device and mobile terminal | |
| CN109104203B (en) | Communication method, electronic device, and computer-readable storage medium | |
| CN110971262B (en) | Radio frequency circuit, antenna device and mobile terminal | |
| CN111313915B (en) | Electronic equipment | |
| CN110856246B (en) | Power control method and electronic equipment | |
| CN108897516B (en) | Wearable device volume adjustment method and related product | |
| CN107196041B (en) | Antenna device and three-section type mobile terminal | |
| CN108649991A (en) | A kind of processing method and mobile terminal of harmonic wave interference | |
| EP3610584A1 (en) | Signal booster with coaxial cable connections | |
| CN112838878A (en) | Radio frequency system, radio frequency front end and mobile terminal | |
| CN110636530B (en) | Method for processing adjacent channel interference and terminal equipment | |
| CN109831225B (en) | Antenna circuit and control method thereof | |
| KR100678275B1 (en) | Antenna module | |
| CN112152649B (en) | Radio frequency circuit, terminal device, signal transmission method, and storage medium | |
| CN113364480A (en) | Radio frequency front end, chip and equipment | |
| CN219068195U (en) | Radio frequency circuit and intelligent terminal | |
| CN220492983U (en) | Antenna circuit and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |
|
| RJ01 | Rejection of invention patent application after publication |