WO2015131600A1 - 一种射频单元 - Google Patents

一种射频单元 Download PDF

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Publication number
WO2015131600A1
WO2015131600A1 PCT/CN2014/093617 CN2014093617W WO2015131600A1 WO 2015131600 A1 WO2015131600 A1 WO 2015131600A1 CN 2014093617 W CN2014093617 W CN 2014093617W WO 2015131600 A1 WO2015131600 A1 WO 2015131600A1
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WO
WIPO (PCT)
Prior art keywords
signal
connector
power amplifier
radio frequency
frequency unit
Prior art date
Application number
PCT/CN2014/093617
Other languages
English (en)
French (fr)
Inventor
康玉龙
邵晓兵
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to JP2017519524A priority Critical patent/JP2017535183A/ja
Priority to EP14884594.4A priority patent/EP3206306A4/en
Priority to US15/518,023 priority patent/US20170310005A1/en
Publication of WO2015131600A1 publication Critical patent/WO2015131600A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/267—Phased-array testing or checking devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62905—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances comprising a camming member
    • H01R13/62911—U-shaped sliding element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0277—Selecting one or more amplifiers from a plurality of amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/526—Circuit arrangements for protecting such amplifiers protecting by using redundant amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/18—End pieces terminating in a probe
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal

Definitions

  • the utility model relates to the field of communication equipment, in particular to a radio frequency unit.
  • the radio frequency unit is mainly used for receiving and transmitting wireless signals, and includes a carrier frequency processing module, a power amplifier module and a filtering module, and the interconnection between the carrier frequency processing module and the filtering module through a small signal RF connector. It is used for receiving and transmitting radio frequency signals, and the power amplifier module and the filtering module are interconnected by a large-signal RF connector for transmission of high-power signals.
  • FIG. 1 is a schematic structural diagram of an existing radio frequency unit.
  • a large-signal RF connector between the power amplifier module and the filter module has a high cost and a power capacity.
  • the loss is too large and the occupied area is too large, the axial and radial tolerances are too small, and the assembly requirements are not met.
  • the utility model provides a radio frequency unit, which solves the problem that the existing radio frequency unit cannot meet the assembly requirements due to the axial and radial tolerances being too small in the assembly process.
  • the present invention provides a radio frequency unit, including a power amplifier module, a filtering module, and a signal connector;
  • One end of the signal connector is connected to the filtering module, and the other end is connected to the power amplifier module;
  • the power amplifier module is provided with a power amplifier connector, and one end of the signal connector connected to the power amplifier module is formed with a guiding structure for guiding the power amplifier connector coaxially with the signal connector, through the guiding The structure, the power amplifier connector is coaxially connected to the signal connector.
  • the guiding structure is an arc structure, and the arc structure is formed on an outer edge of an end surface of the signal connector.
  • the guiding structure is a convex structure
  • the inner edge of the protruding structure has a slope
  • the protruding structure is formed along an outer edge of the end surface of the signal connector. On the end face of the signal connector.
  • the signal connector is a signal pin
  • the signal pin includes a male head, a needle body, an elastic component, and a fixing component for fixing the signal pin;
  • the fixing member is wrapped on the needle body, the elastic member is disposed in the needle body, and one end of the needle body is provided with an opening, and a tail portion of the male head is a curved surface, and the opening and the The elastic members are in contact with each other, and the head of the male head is provided with the arc structure, and a certain gap is reserved between the male head and the opening.
  • the power amplifier connector is a signal hole, and a tail portion of the signal hole is connected to a signal output end of the power amplifier module.
  • the signal connector is a signal hole
  • the signal hole includes a hole body, a female head, and a fixing component for fixing the hole body
  • the fixing member is wrapped on the hole body, one end of the hole body is connected to the tail portion of the female head, and the head of the female head is provided with the convex structure.
  • the power amplifier connector is a signal pin, and a tail of the signal pin is connected to a signal output end of the power amplifier module.
  • one end of the signal connector is directly connected to a signal input end of the filter module.
  • the radio frequency unit further includes an outer conductor as a signal transmission reflow and a shielding function, the outer conductor includes a metal shielding layer and a conductive rubber ring, and the conductive rubber ring is disposed on The metal shielding layer is between the power amplifier module.
  • the metal shielding layer includes a filtering module cavity and a filtering module cover, or the metal shielding layer includes a filtering module cavity;
  • the conductive rubber ring is directly placed or dispensed on the filter module cavity or the filter module cover.
  • the utility model provides a radio frequency unit, which is convenient for guiding a power amplifier module and a filter module to be connected through a signal connector through a guiding structure for guiding the power amplifier connector and the signal connector to be coaxially aligned, compared with the existing signal connection.
  • the utility model has the advantages of low cost, high power consumption, good port standing wave, low insertion loss, wide frequency band, more space saving, flexible installation mode and simple process, high processing precision, good device consistency and processability. Can be applied to ordinary PCB (Printed Circuit Board) boards, using SMT (Surface) Mount Technology, surface mount technology) process, one-shot molding, suitable for mass production.
  • the connection between the microstrip transmission line on the RF circuit board and the external device is realized, that is, the signal transmission is realized, and the new RF is passed through the standard structure adapter.
  • the connector and the corresponding conductive area on the duplexer cavity are connected together, and the standard structure adapters with various structural forms can be used to flexibly design the switching mode.
  • 1 is a schematic structural view of a conventional radio frequency unit
  • FIG. 2a is a schematic structural view of a signal connector according to Embodiment 1 of the present invention.
  • FIGS. 2b and 2c are respectively schematic structural views of a power amplifier connector in a horizontal direction and a vertical direction according to Embodiment 1 of the present invention
  • 3a and 3b are schematic cross-sectional views showing a process of assembling a radio frequency unit according to Embodiment 1 of the present invention
  • 4a and 4b are schematic cross-sectional views showing the assembly process of the radio frequency unit according to the first embodiment of the present invention.
  • FIG. 5a is a schematic structural view of a signal connector according to Embodiment 2 of the present invention.
  • 5b and 5c are schematic structural views of a power amplifier connector in a horizontal direction and a vertical direction according to a second embodiment of the present invention.
  • 6a and 6b are schematic cross-sectional views showing the assembly process of the radio frequency unit according to the second embodiment of the present invention.
  • 7a and 7b are schematic cross-sectional views showing the assembly process of the radio frequency unit according to the second embodiment of the present invention.
  • the utility model provides a radio frequency unit, including a power amplifier module and a filter module, and a signal connector, wherein one end of the signal connector is connected to the filter module. That is, a large signal connector is disposed on one side of the filter module, and the other end of the signal connector is connected to the power amplifier module, so that the filter module and the power amplifier module are connected through a signal connector; the power amplifier module is provided with a power amplifier connector, and the signal connection The device is connected to the power amplifier module through the power amplifier connector.
  • a guiding structure is formed at one end of the signal connector and the power amplifier module, and the signal connector is connected with the power amplifier.
  • the guiding structure can be used for guiding the power amplifier connector to be coaxially aligned with the signal connector.
  • the power amplifier module can be a power amplifier PCB
  • the filter module can be a filter.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 2a is a schematic structural diagram of a signal connector according to Embodiment 1 of the present invention.
  • the signal connector 1 is disposed on one side of the filter module, and the signal connector 1 is connected to the filter module 1 at one end A.
  • the shape and structure can be designed by the manufacturer.
  • the guiding structure formed by the end B of the signal connector 1 and the power amplifier module is an arc structure a, and the arc structure a is formed on the outer edge of the end surface of the signal connector 1, such as at the end surface.
  • the outer edge is provided with rounded corners. Further, if the radius of the curved structure a is larger, the closer it is to the dome on the end surface, the signal connector is coaxially connected with the power amplifier connector through the curved structure a .
  • the signal connector 1 is a signal pin including a male head 11, a needle body 12, an elastic member 13, and a fixing member 14.
  • the male body 11 and the needle body 12 may be copper posts.
  • the fixing member 14 is wrapped around the needle body 12 for fixing the signal needle.
  • the elastic member 13 is disposed in the needle body 12 and can be used for increasing axial and radial directions.
  • the head of the male head 11 is provided with an arc structure a, one end of the needle body 12 is provided with an opening, the tail portion of the male head 11 is in contact with the elastic member 13 through the opening, and the tail portion is a curved surface, the male head 11 and A certain gap is reserved between the openings, and the other end of the needle 12 is connected to the filter module, and the shape and structure thereof can be designed by the manufacturer.
  • FIGS. 2b and 2c are respectively a schematic diagram showing the structure of the power amplifier connector in the horizontal direction and the vertical direction according to the first embodiment of the present invention.
  • the power amplifier connector 2 is listed in the horizontal direction and the vertical direction, respectively.
  • the power amplifier connection 2 is a female head, and the power amplifier connector 2 is disposed on a side of the power amplifier module 9 (shown in FIG. 3b).
  • the power amplifier connector 2 is a signal hole, and the head of the signal hole is provided with a guiding slot.
  • the tail is connected to the signal output end of the power amplifier module 9.
  • FIGS. 3a and 3b are schematic cross-sectional views showing the assembly process of the radio frequency unit according to the first embodiment of the present invention, as shown in FIGS. 3a and 3b, and FIG. 4a and FIG. 4b are cross-sections of the assembly process of the radio frequency unit according to the first embodiment of the present invention.
  • the schematic diagram, as shown in Figures 4a and 4b, according to the above signal connector (signal pin) 1, power amplifier connector (signal hole) 2, the assembly process of the radio frequency unit is as follows: First, on the side of the filter module, the tail of the signal pin Directly connected to the signal input end of the filter module, making it serve as a large signal transmission line, and its shape and structure can be self-contained according to the cavity of the filter module.
  • an arc-shaped structure is provided on the male end of the signal pin, and the elastic component in the signal pin can be used to increase the axial and radial tolerance requirements;
  • the tail of the signal hole is connected to The signal output end of the power amplifier module, such as the tail of the signal hole is soldered to the output signal line of the power amplifier PCB, the head of the signal hole is provided with a guiding groove, the shape of the guiding groove is similar to a bowl shape, and can be used to increase the axial tolerance;
  • the power amplifier module is directly placed on the filter module, and the arc structure can guide the power amplifier connector to be coaxially aligned with the signal connector, and the power amplifier connector and the signal connector can be matched to complete the power amplifier connector and the signal connection.
  • the coaxial connection of the device quickly realizes the blind connector connection of the signal connector through the tolerance design and the power amplifier connector on the power amplifier module, and solves the problem that the axial and radial tolerances are too small to meet the
  • the signal connector 1 and the power amplifier connector 2 constitute an inner core of the radio frequency unit, and the radio frequency unit further includes an outer conductor, which can be used as a signal transmission reflow and has a shielding function, and the outer conductor includes
  • the metal shielding layer 3 and the conductive rubber ring 4 are disposed between the metal shielding layer 3 and the power amplifier module.
  • the metal shielding layer 3 may include a filtering module cavity 31, a filter module cover 32, or the metal shielding layer.
  • the layer 3 may also include only the filter module cavity 31.
  • the conductive apron 4 is a conductive O-ring, it may be directly placed on the filter module cavity 31 or the filter module cover 32, if the conductive apron 4 is The dispensing method can be disposed on the filter module cavity 31 or the filter module cover 32 in a dispensing manner.
  • the outer conductor can be used as a signal connector and a ground layer of the power amplifier connector, and it is not necessary to provide an additional shielding layer such as a radio frequency link.
  • 3a, 3b and 4a, 4b differ in that, in FIG. 3a, 3b, the outer conductor of the radio frequency unit includes a filter module cover 32, and the conductive rubber ring 4 is disposed on the filter module cover 32. 4a, 4b, the outer conductor of the radio frequency unit does not include the filter cover 32, and the conductive rubber ring 4 is disposed on the filter module cavity.
  • the embodiment provides a radio frequency unit, which is convenient for guiding the power amplifier module and the filter module to be connected through a signal connector by using an arc structure for guiding the power amplifier connector coaxially with the signal connector, compared to the existing signal.
  • the connector has the advantages of low cost, space saving, flexible installation method and simple process.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 5 is a schematic structural diagram of a signal connector according to Embodiment 2 of the present invention.
  • the signal connector 5 is disposed on one side of the filter module, and the signal connector 5 is connected to the filter module at one end C.
  • the shape and structure can be designed by the manufacturer.
  • the guiding structure formed by the end D of the signal connector 5 and the power amplifier module is a convex structure b.
  • the inner edge of the protruding structure b has a slope, and the direction of the slope is outward.
  • the raised structure b is formed on the end face of the signal connector 5 along the outer edge of the end face of the signal connector 5, such as the end face being designed to have a cross shape or other shape having a guiding function, thereby being used for increasing axial and radial directions. Tolerance requirements, through the raised structure b, the signal connector is coaxially connected to the power amplifier connector.
  • the signal connector 5 is a signal hole
  • the signal hole includes a hole body 51, a female head 52, and a fixing member 53.
  • the hole body 51 and the female head 52 may be copper posts.
  • the fixing member 53 is wrapped around the hole body 51 for fixing the signal hole.
  • One end of the hole body 51 is connected to the tail portion of the female head 52, and the hole body 51 is further One end is connected to the filter module, and its shape and structure can be designed by the manufacturer.
  • the head of the female head 52 is provided with a convex structure b.
  • FIGS. 5b and 5c are schematic diagrams showing the structure of the power amplifier connector in the horizontal direction and the vertical direction according to the second embodiment of the present invention.
  • the power amplifier connector 6 is listed in the horizontal direction and the vertical direction, respectively.
  • the power amplifier connector 6 is a male connector.
  • the power amplifier connector 6 is disposed on a side of the power amplifier module 9 (shown in FIG. 6b).
  • the power amplifier connector 6 is a signal pin, and the tail end of the signal hole is connected to the power amplifier module.
  • the signal output end is soldered to the signal output end of the power amplifier module 9.
  • FIGS. 6a and 6b are schematic cross-sectional views showing the assembly process of the radio frequency unit according to the second embodiment of the present invention, as shown in FIGS. 6a and 6b, and FIGS. 7a and 7b are schematic cross-sectional views showing the structure of the radio frequency unit according to the second embodiment of the present invention.
  • the assembly process of the radio frequency unit is as follows: First, on the side of the filter module, the tail of the signal hole is directly connected. At the signal input end of the filter module, it acts as a large signal transmission line, and its shape and structure can be designed or freely changed according to the cavity of the filter module.
  • the head of the signal hole is provided with a convex structure, that is, the head of the signal hole.
  • the end face is designed as a cross type or other shape with guiding function, so as to increase the axial and radial tolerance requirements;
  • the tail of the signal pin is connected to the signal output end of the power amplifier module, such as a signal
  • the tail of the needle is soldered to the output signal line of the power amplifier PCB;
  • the power amplifier module is directly placed on the filter module, and the raised structure can guide the power amplifier connector to connect with the signal
  • the connector is coaxially aligned, and the power amplifier connector and the signal connector can be matched to complete the coaxial connection of the power amplifier connector and the signal connector, that is, the signal connector is quickly realized by the tolerance design and the power amplifier module.
  • the blind plug connection of the power amplifier connector solves the problem that the axial and radial tolerances are too small to meet the assembly requirements.
  • the signal connector 5 and the power amplifier connector 6 constitute an inner core of the radio frequency unit, and the radio frequency unit further includes an outer conductor, which can be used as a signal transmission reflow and has a shielding function, and the outer conductor includes
  • the metal shielding layer 7 and the conductive rubber ring 8 are disposed between the metal shielding layer 7 and the power amplifier module.
  • the metal shielding layer 7 may include a filtering module cavity 71, a filter module cover 72, or the metal shielding layer.
  • the layer 7 may also include only the filter module cavity 71.
  • the conductive apron 8 is a conductive O-ring, it may be directly placed on the filter module cavity 71 or the filter module cover 72, if the conductive apron 8 is The dispensing method can be disposed on the filter module cavity 71 or the filter module cover 72 in a dispensing manner.
  • the outer conductor can be used as a signal connector and a ground layer of the power amplifier connector, and no additional shielding layer such as a radio frequency connecting rod is needed.
  • the inner core and the outer conductor are included. Both tolerances can be used to meet the interference fit between the power amplifier module and the filter module, thus achieving reliable blind plug connection.
  • the outer conductor of the radio frequency unit includes a filter module cover 72, the conductive rubber ring 8 is disposed on the filter module cover 72, and in Figures 7a, 7b, The outer conductor of the radio frequency unit does not include a filter cover 72, and the conductive rubber ring 8 is disposed on the filter module cavity.
  • the inner core and the outer conductor can be designed with a tolerance to meet the interference fit of the power amplifier module and the filter module when interconnecting, thereby realizing reliable blind plug connection.
  • the embodiment provides a radio frequency unit, which is configured to guide a power amplifier module and a filter module to be connected through a signal connector through a protruding structure for guiding the power amplifier connector and the signal connector to be coaxially aligned, compared to the existing signal.
  • the connector has the advantages of low cost, space saving, flexible installation method and simple process.
  • the guiding structure for guiding the power amplifier connector and the signal connector to be coaxially aligned facilitates the connection between the power amplifier module and the filtering module through the signal connector, compared to the existing
  • the signal connector has the advantages of low cost, high power consumption, good port standing wave, low insertion loss, wide frequency band, more space saving, flexible installation method and simple process.
  • the processing precision is high, the device consistency is good, and the processing can be processed. Sex, can be applied to ordinary PCB boards, using SMT processing technology, one-time molding, suitable for mass production.
  • the connection between the microstrip transmission line on the RF circuit board and the external device is realized, that is, the signal transmission is realized, and the new RF is passed through the standard structure adapter.
  • the connector and the corresponding conductive area on the duplexer cavity are connected together, and the standard structure adapters with various structural forms can be used to flexibly design the switching mode.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

一种射频单元，包括功放模块（9）、滤波模块以及信号连接器（1），信号连接器的一端（A）连接滤波模块，另一端（B）连接功放模块；功放模块设置有功放连接器（2），信号连接器与功放模块连接的一端形成有用于引导功放连接器与信号连接器同轴对准的导向结构，通过导向结构，功放连接器与信号连接器同轴连接。该技术方案解决了现有射频单元在装配过程中由于轴向和径向公差太小，无法满足装配要求的问题。通过用于引导功放连接器与信号连接器同轴对准的导向结构，便于功放模块与滤波模块之间通过信号连接器进行连接，相比于现有信号连接器，具有成本低廉、更节省空间、安装方式灵活、工艺简单的优点。

Description

一种射频单元 技术领域
本实用新型涉及通讯设备领域，尤其涉及一种射频单元。
背景技术
在基站通讯产品中，射频单元主要用于无线信号的接收和发射，它包括载频处理模块、功放模块和滤波模块等，载频处理模块与滤波模块之间通过小信号射频连接器的互连，用于接收和发射射频信号，功放模块与滤波模块之间通过大信号射频连接器互连，用于大功率信号的传输。
如图1为现有射频单元的结构示意图，如图1所示，在现有射频单元中，存在如下的问题：功放模块与滤波模块之间的大信号射频连接器成本较高，功率容量达不到***设计要求，损耗太大且占用面积过大，轴向和径向公差太小，不满足装配要求。
发明内容
本实用新型提供给了一种射频单元，解决了现有射频单元在装配过程中由于轴向和径向公差太小，无法满足装配要求的问题。
为解决上述技术问题，本实用新型提供了一种射频单元，包括功放模块、滤波模块以及信号连接器；
所述信号连接器的一端连接于所述滤波模块，另一端连接于所述功放模块；
所述功放模块设置有功放连接器，所述信号连接器与所述功放模块连接的一端形成有用于引导所述功放连接器与所述信号连接器同轴对准的导向结构，通过所述导向结构，所述功放连接器与所述信号连接器同轴连接。
在本实用新型的一种实施例中，所述导向结构为弧形结构，所述弧形结构形成于所述信号连接器的端面外边缘。
在本实用新型的一种实施例中，所述导向结构为凸起结构，所述凸起结构的内边缘带有坡度，所述凸起结构沿着所述信号连接器的端面外边缘形成于所述信号连接器的端面上。
在本实用新型的一种实施例中，所述信号连接器为信号针，所述信号针包括公头、针体、弹性部件以及用于固定所述信号针的固定部件；
所述固定部件包裹于所述针体上，所述弹性部件设置于所述针体内，所述针体的一端设置有开口，所述公头的尾部为弧面，且通过所述开口与所述弹性部件相接触，所述公头的头部设置有所述弧形结构，所述公头与所述开口之间预留一定的间隙。
在本实用新型的一种实施例中，所述功放连接器为信号孔，所述信号孔的尾部连接于所述功放模块的信号输出端。
在本实用新型的一种实施例中，所述信号连接器为信号孔，所述信号孔包括孔体、母头以及用于固定所述孔体的固定部件；
所述固定部件包裹于所述孔体上，所述孔体的一端连接于所述母头的尾部，所述母头的头部设置有所述凸起结构。
在本实用新型的一种实施例中，所述功放连接器为信号针，所述信号针的尾部连接于所述功放模块的信号输出端。
在本实用新型的一种实施例中，所述信号连接器的一端直接连接于与所述滤波模块的信号输入端。
在本实用新型的一种实施例中，所述射频单元还包括作为信号传输回流地以及具有屏蔽作用的外导体，所述外导体包括金属屏蔽层、导电胶圈，所述导电胶圈设置于所述金属屏蔽层与所述功放模块之间。
在本实用新型的一种实施例中，所述金属屏蔽层包括滤波模块腔体、滤波模块盖板，或者，所述金属屏蔽层包括滤波模块腔体；
所述导电胶圈直接放置或以点胶方式设置于所述滤波模块腔体或滤波模块盖板上。
本实用新型的有益效果：
本实用新型提供一种射频单元，通过用于引导功放连接器与信号连接器同轴对准的导向结构，便于功放模块与滤波模块之间通过信号连接器进行连接，相比于现有信号连接器，具有成本低廉、可承受大功率、端口驻波好、低插损、宽频带、更节省空间、安装方式灵活、工艺简单的优点，加工精度高、器件一致性好，具有可加工性，可应用在普通的PCB(Printed Circuit Board，印制电路板)板材上，采用SMT(Surface  Mount Technology，表面贴装技术)加工工艺，一次成型，适合于批量生产。此外，通过焊接在射频电路板上来与射频电路板上的微带传输线相连，从而实现射频电路板上的微带传输线与外部设备的连接，即实现信号的传输，通过标准结构转接头将新型射频连接器和双工器腔体上的对应导电区连接在一起，可采用结构形式多样的标准结构转接头，灵活设计转接方式。
附图说明
图1为现有射频单元的结构示意图；
图2a为本实用新型实施例一提供的信号连接器的结构示意图；
图2b、2c分别为本实用新型实施例一提供的功放连接器水平方向、垂直方向的结构示意图；
图3a、3b为本实用新型实施例一提供的射频单元装配过程的截面示意图；
图4a、4b为本实用新型实施例一提供的射频单元装配过程的截面示意图；
图5a为本实用新型实施例二提供的信号连接器的结构示意图；
图5b、5c为本实用新型实施例二提供的功放连接器水平方向、垂直方向的结构示意图；
图6a、6b为本实用新型实施例二提供的射频单元装配过程的截面示意图；
图7a、7b为本实用新型实施例二提供的射频单元装配过程的截面示意图。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例只是本实用新型中一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
下面通过具体实施方式结合附图对本实用新型作进一步详细说明。
为了使射频单元在装配过程中满足装配要求，本实用新型提供一种射频单元，包括功放模块、滤波模块，还包括信号连接器，该信号连接器的一端连接于滤波模块， 即在滤波模块一侧设置有大信号连接器，信号连接器的另一端连接于功放模块，从而使滤波模块与功放模块之间通过信号连接器相连接；功放模块设置有功放连接器，信号连接器通过功放连接器与功放模块相连接，为了使信号连接器与功放连接器在装配过程中满足装配要求，在信号连接器与功放模块连接的一端形成有导向结构，当信号连接器与功放连接器连接时，该导向结构可以用于引导功放连接器与信号连接器同轴对准，通过该导向结构，功放连接器与信号连接器同轴连接，即实现了信号连接器通过容差设计与功放模块上的功放连接器的盲插连接，从而满足装配要求。该功放模块可以为功放PCB，滤波模块可以为滤波器。
实施例一：
如图2a为本实用新型实施例一提供的信号连接器的结构示意图，如图2a所示，在滤波模块一侧设置该信号连接器1，该信号连接器1与滤波模块连接的一端A的形状与结构可由厂家自行设计，该信号连接器1与功放模块连接的一端B形成的导向结构为弧形结构a，该弧形结构a形成于该信号连接器1的端面外边缘，如在端面的外边缘设置圆角，进一步地，若该弧形结构a的半径越大，其越接近于在端面上设置圆顶，通过该弧形结构a，使信号连接器与功放连接器同轴连接。
在上述技术方案中，该信号连接器1为信号针，该信号针包括公头11、针体12、弹性部件13以及固定部件14。其中，公头11、针体12可为铜柱，该固定部件14包裹于针体12上，用于固定该信号针，弹性部件13设置于针体12内，可用于增加轴向、径向公差要求，公头11的头部设置有弧形结构a，针体12的一端设置有开口，公头11的尾部通过开口与弹性部件13相接触，且其尾部为弧面，公头11与开口之间预留一定的间隙，针体12的另一端连接于滤波模块，其形状与结构可由厂家自行设计。
如图2b、2c分别为本实用新型实施例一提供的功放连接器水平方向、垂直方向的结构示意图，如图2b、2c所示，分别列出了功放连接器2在水平方向以及垂直方向上的结构，该功放连接2为母头，在功放模块9(如图3b所示)一侧设置该功放连接器2，该功放连接器2为信号孔，该信号孔的头部设置有导向槽，尾部连接于功放模块9的信号输出端。
如图3a、3b为本实用新型实施例一提供的射频单元装配过程的截面示意图，如图3a、3b所示，如图4a、4b为本实用新型实施例一提供的射频单元装配过程的截面示意图，如图4a、4b所示，根据上述信号连接器(信号针)1、功放连接器(信号孔)2，该射频单元的装配过程如下：首先，在滤波模块一侧，信号针的尾部直接连接于滤波模块的信号输入端，使其充当大信号传输线，其形状和结构可根据滤波模块的腔体自行 设计或自由改变，在信号针的公头上设置有弧形结构，信号针内的弹性部件可用于增加轴向、径向公差要求；其次，在功放模块一侧，将信号孔的尾部连接于功放模块的信号输出端，如将信号孔的尾部焊接于功放PCB的输出信号线上，信号孔的头部设置导向槽，该导向槽的形状类似碗状，可以用于增加轴向公差；最后，将功放模块直接放置于滤波模块上，该弧形结构可以引导功放连接器与信号连接器同轴对准，并使功放连接器与信号连接器可以相配合，从而完成功放连接器与信号连接器的同轴连接，即快速实现了信号连接器通过容差设计与功放模块上的功放连接器的盲插连接，解决了由于轴向和径向公差太小，无法满足装配要求的问题。
在上述技术方案中，信号连接器1与功放连接器2构成了射频单元的内芯，该射频单元还包括外导体，该外导体可作为信号传输回流地，且具有屏蔽作用，该外导体包括金属屏蔽层3、导电胶圈4，导电胶圈4设置于金属屏蔽层3与功放模块之间，该金属屏蔽层3可以包括滤波模块腔体31、滤波模块盖板32，或者，该金属屏蔽层3也可以只包括滤波模块腔体31，若该导电胶圈4为导电O型圈，则可以直接放置于滤波模块腔体31或滤波模块盖板32上，若该导电胶圈4是以点胶方式构成的，则可以点胶方式设置于滤波模块腔体31或滤波模块盖板32上。需要说明的是，在本实施例中，外导体可以作为信号连接器以及功放连接器的地层，而不需要再设置额外的射频连杆等屏蔽层。结合上述装配过程，图3a、3b与4a、4b的区别在于，在图3a、3b中，该射频单元的外导体包括滤波模块盖板32，导电胶圈4设置于该滤波模块盖板32上，而在图4a、4b中，该射频单元的外导体不包括滤波器盖板32，导电胶圈4设置于该滤波模块腔体上。
本实施例提供一种射频单元，通过用于引导功放连接器与信号连接器同轴对准的弧形结构，便于功放模块与滤波模块之间通过信号连接器进行连接，相比于现有信号连接器，具有成本低廉、更节省空间、安装方式灵活、工艺简单的优点。
实施例二：
如图5a为本实用新型实施例二提供的信号连接器的结构示意图，如图5a所示，在滤波模块一侧设置该信号连接器5，该信号连接器5与滤波模块连接的一端C的形状与结构可由厂家自行设计，该信号连接器5与功放模块连接的一端D形成的导向结构为凸起结构b，该凸起结构b的内边缘带有坡度，该坡度的方向向外，该凸起结构b沿着信号连接器5的端面外边缘形成于该信号连接器5的端面上，如将该端面设计为具有导向功能的十字型或其它形状，从而用于增加轴向、径向公差要求，通过该凸起结构b，使信号连接器与功放连接器同轴连接。
在上述技术方案中，该信号连接器5为信号孔，该信号孔包括孔体51、母头52以及固定部件53。其中，孔体51、母头52可为铜柱，该固定部件53包裹于孔体51上，用于固定该信号孔，孔体51的一端连接于母头52的尾部，孔体51的另一端连接于滤波模块，其形状与结构可由厂家自行设计，母头52的头部设置有凸起结构b。
如图5b、5c为本实用新型实施例二提供的功放连接器水平方向、垂直方向的结构示意图，如图5b、5c所示，分别列出了功放连接器6在水平方向以及垂直方向上的结构，该功放连接器6为公头，在功放模块9(如图6b所示)一侧设置该功放连接器6，该功放连接器6为信号针，该信号孔的尾部连接于功放模块的信号输出端，如焊接于功放模块9的信号输出端。
如图6a、6b为本实用新型实施例二提供的射频单元装配过程的截面示意图，如图6a、6b所示，图7a、7b为本实用新型实施例二提供的射频单元结构的截面示意图，如图7a、7b所示，根据上述信号连接器(信号孔)5、功放连接器(信号针)6，该射频单元的装配过程如下：首先，在滤波模块一侧，信号孔的尾部直接连接于滤波模块的信号输入端，使其充当大信号传输线，其形状和结构可根据滤波模块的腔体自行设计或自由改变，信号孔的头部上设置有凸起结构，即信号孔的头部端面设计为具有导向功能的十字型或其他形状，从而用于增加轴向、径向公差要求；其次，在功放模块一侧，将信号针的尾部连接于功放模块的信号输出端，如将信号针的尾部焊接于功放PCB的输出信号线上；最后，将功放模块直接放置于滤波模块上，该凸起结构可以引导功放连接器与信号连接器同轴对准，并使功放连接器与信号连接器可以相配合，从而完成功放连接器与信号连接器的同轴连接，即快速实现了信号连接器通过容差设计与功放模块上的功放连接器的盲插连接，解决了由于轴向和径向公差太小，无法满足装配要求的问题。
在上述技术方案中，信号连接器5与功放连接器6构成了射频单元的内芯，该射频单元还包括外导体，该外导体可作为信号传输回流地，且具有屏蔽作用，该外导体包括金属屏蔽层7、导电胶圈8，导电胶圈8设置于金属屏蔽层7与功放模块之间，该金属屏蔽层7可以包括滤波模块腔体71、滤波模块盖板72，或者，该金属屏蔽层7也可以只包括滤波模块腔体71，若该导电胶圈8为导电O型圈，则可以直接放置于滤波模块腔体71或滤波模块盖板72上，若该导电胶圈8是以点胶方式构成的，则可以点胶方式设置于滤波模块腔体71或滤波模块盖板72上。需要说明的是，在本实施例中，外导体可以作为信号连接器以及功放连接器的地层，而不需要再设置额外的射频连杆等屏蔽层，在本实施例中，内芯、外导体都可采用容差设计，满足功放模块与滤模块互连时的过盈配合，从而实现可靠盲插连接。结合上述装配过程，图6a、6b与 7a、7b的区别在于，在图6a、6b中，该射频单元的外导体包括滤波模块盖板72，导电胶圈8设置于该滤波模块盖板72上，而在图7a、7b中，该射频单元的外导体不包括滤波器盖板72，导电胶圈8设置于该滤波模块腔体上。在本实施例中，内芯、外导体都可采用容差设计，满足功放模块及滤波模块互连时的过盈配合，从而实现可靠盲插连接。
本实施例提供一种射频单元，通过用于引导功放连接器与信号连接器同轴对准的凸起结构，便于功放模块与滤波模块之间通过信号连接器进行连接，相比于现有信号连接器，具有成本低廉、更节省空间、安装方式灵活、工艺简单的优点。
以上内容是结合具体的优选实施方式对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型的保护范围。
工业实用性
基于本实用新型提供的一种射频单元，通过用于引导功放连接器与信号连接器同轴对准的导向结构，便于功放模块与滤波模块之间通过信号连接器进行连接，相比于现有信号连接器，具有成本低廉、可承受大功率、端口驻波好、低插损、宽频带、更节省空间、安装方式灵活、工艺简单的优点，加工精度高、器件一致性好，具有可加工性，可应用在普通的PCB板材上，采用SMT加工工艺，一次成型，适合于批量生产。此外，通过焊接在射频电路板上来与射频电路板上的微带传输线相连，从而实现射频电路板上的微带传输线与外部设备的连接，即实现信号的传输，通过标准结构转接头将新型射频连接器和双工器腔体上的对应导电区连接在一起，可采用结构形式多样的标准结构转接头，灵活设计转接方式。

Claims (10)

  1. 一种射频单元，包括功放模块、滤波模块以及信号连接器；
    所述信号连接器的一端连接于所述滤波模块，另一端连接于所述功放模块；
    所述功放模块设置有功放连接器，所述信号连接器与所述功放模块连接的一端形成有用于引导所述功放连接器与所述信号连接器同轴对准的导向结构，通过所述导向结构，所述功放连接器与所述信号连接器同轴连接。
  2. 根据权利要求1所述的射频单元，其中，所述导向结构为弧形结构，所述弧形结构形成于所述信号连接器的端面外边缘。
  3. 根据权利要求1所述的射频单元，其中，所述导向结构为凸起结构，所述凸起结构的内边缘带有坡度，所述凸起结构沿着所述信号连接器的端面外边缘形成于所述信号连接器的端面上。
  4. 根据权利要求2所述的射频单元，其中，所述信号连接器为信号针，所述信号针包括公头、针体、弹性部件以及用于固定所述信号针的固定部件；
    所述固定部件包裹于所述针体上，所述弹性部件设置于所述针体内，所述针体的一端设置有开口，所述公头的尾部为弧面，且通过所述开口与所述弹性部件相接触，所述公头的头部设置有所述弧形结构，所述公头与所述开口之间预留一定的间隙。
  5. 根据权利要求2或4所述的射频单元，其中，所述功放连接器为信号孔，所述信号孔的尾部连接于所述功放模块的信号输出端。
  6. 根据权利要求3所述的射频单元，其中，所述信号连接器为信号孔，所述信号孔包括孔体、母头以及用于固定所述孔体的固定部件；
    所述固定部件包裹于所述孔体上，所述孔体的一端连接于所述母头的尾部，所述母头的头部设置有所述凸起结构。
  7. 根据权利要求3或6所述的射频单元，其中，所述功放连接器为信号针，所述信号针的尾部连接于所述功放模块的信号输出端。
  8. 根据权利要求1-3任一项所述的射频单元，其中，所述信号连接器的一端直接连接于与所述滤波模块的信号输入端。
  9. 根据权利要求1-3任一项所述的射频单元，其中，所述射频单元还包括作为信号传输回流地以及具有屏蔽作用的外导体，所述外导体包括金属屏蔽层、导电胶圈，所述导电胶圈设置于所述金属屏蔽层与所述功放模块之间。
  10. 根据权利要求9所述的射频单元，其中，所述金属屏蔽层包括滤波模块腔体、滤波模块盖板，或者，所述金属屏蔽层包括滤波模块腔体；
    所述导电胶圈直接放置或以点胶方式设置于所述滤波模块腔体或滤波模块盖板上。
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