WO2013150969A1 - 複合モジュール - Google Patents
複合モジュール Download PDFInfo
- Publication number
- WO2013150969A1 WO2013150969A1 PCT/JP2013/059461 JP2013059461W WO2013150969A1 WO 2013150969 A1 WO2013150969 A1 WO 2013150969A1 JP 2013059461 W JP2013059461 W JP 2013059461W WO 2013150969 A1 WO2013150969 A1 WO 2013150969A1
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- WO
- WIPO (PCT)
- Prior art keywords
- signal
- wiring
- wiring board
- path
- electrode
- Prior art date
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Classifications
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- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/0243—Printed circuits associated with mounted high frequency components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09972—Partitioned, e.g. portions of a PCB dedicated to different functions; Boundary lines therefore; Portions of a PCB being processed separately or differently
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4626—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials
- H05K3/4629—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials laminating inorganic sheets comprising printed circuits, e.g. green ceramic sheets
Definitions
- the present invention relates to a composite module including a wiring board provided with a plurality of communication systems each performing communication using a predetermined frequency band.
- GSM Global System for Mobile Communications
- PDC Personal Digital Cellular
- PCS Personal Communications Service
- CDMA Code Division Multiple Access
- a mobile phone terminal configured as described above is provided.
- portable information terminals such as notebook computers and smartphones are configured to be able to communicate with a plurality of wireless LAN standards represented by IEEE 802.11a / b / g / n.
- a plurality of communication systems that perform communication using a predetermined frequency band defined in each standard are provided to a communication portable terminal such as a mobile phone terminal or a portable information terminal that supports a plurality of communication schemes (standards).
- a composite module including a wiring board provided with is mounted.
- a demultiplexing circuit for supplying a communication signal (RF signal) of a predetermined frequency band inputted from the outside to a communication system corresponding to the RF signal on the wiring board of the composite module provided with a plurality of communication systems And an amplifier circuit such as a power amplifier (PA) and a low noise amplifier (LNA) for amplifying an input signal from the outside and an output signal to the outside.
- PA power amplifier
- LNA low noise amplifier
- the isolation characteristics between the communication systems and between the high-frequency circuits may deteriorate due to the proximity arrangement, and the RF signal amplified in the amplifier circuit is an antenna switch circuit including a branching circuit and a low-pass filter. Flows into the amplifier circuit, causing loss of signals in the branching circuit or antenna switch circuit, or RF signals flowing through the antenna switch circuit flowing into the amplifier circuit, causing the amplifier circuit to oscillate and becoming unstable. There is a risk.
- the communication quality in each communication system deteriorates due to mutual interference of RF signals between the communication systems.
- the conventional composite module 500 shown in FIG. 4 includes a wiring board 501 provided with a plurality of wiring electrodes therein, and a plurality of electronic components 502 mounted on the component mounting surface 501a of the wiring board 501.
- the wiring electrodes that constitute the amplifier circuit are formed in the left region of the wiring substrate 501, and the wiring electrodes that constitute the switch circuit are formed in the right region of the wiring substrate 501.
- the component mounting surface 501a of the wiring board 501 is provided with a shield electrode 503 at the boundary between the left region where the amplifier circuit is provided and the right region where the switch circuit is provided, and is connected to the shield electrode 503.
- a plurality of through-hole electrodes 504 formed in the stacking direction of the wiring substrate 501 are provided in tandem in the depth direction in FIG.
- the through-hole electrode 504 is connected to a plurality of ground electrodes 505 provided inside the wiring board 501, whereby an amplifier circuit provided in the left area of the wiring board 501 and a switch circuit provided in the right area The mutual interference of the RF signal between the two is suppressed.
- JP 2007-151123 A (paragraph 0043, FIG. 4, abstract, etc.)
- This invention is made in view of the above-mentioned subject, and provides the technique which can improve the isolation characteristic between several signal path
- the composite module of the present invention is a composite module including a wiring board provided with a plurality of communication systems that perform communication using a predetermined frequency band.
- a plurality of signal paths through which an RF signal passes, and wiring electrodes forming the signal paths provided in each of at least two of the communication systems among the plurality of signal paths through which the RF signal does not pass are arranged adjacent to each other. It is characterized by being formed collectively in a predetermined region of the wiring board.
- wiring electrodes that form signal paths included in each of at least two communication systems among a plurality of signal paths through which RF signals do not pass simultaneously are arranged adjacent to each other in a predetermined region of the wiring board. Since they are formed together, each wiring electrode forming another signal path included in each communication system can be arranged separately in another region of the wiring board. Therefore, since the RF signal does not pass at the same time in the signal path where the RF signal does not pass at the same time, the RF signal passing through one signal path does not interfere with the RF signal passing through the other signal path.
- the other signal paths are arranged apart from each other, so that the RF signal provided in each of the plurality of communication systems can be isolated between the plurality of signal paths without using a ground electrode or the like as in the prior art. The transmission characteristics can be improved.
- a plurality of wiring electrodes that simultaneously form a signal path through which the RF signal does not pass may be formed collectively in a central region of the wiring board in plan view.
- a plurality of wiring electrodes that form signal paths that do not interfere with each other because RF signals do not pass at the same time are collectively formed in a central region of the wiring board in plan view.
- the wiring electrodes forming each signal path can be arranged in the peripheral area of the wiring board in a plan view, and each wiring electrode is arranged on the wiring board. Since the degree of freedom of position increases, the degree of freedom of design of the composite module can be improved.
- the wiring electrodes may be formed on one main surface of the wiring board.
- each wiring electrode can be formed on one main surface of the wiring board with high accuracy by using a technique such as photolithography or screen printing. The impedance of each wiring electrode can be easily adjusted.
- the plurality of communication systems are first and second communication systems, and each of the first and second communication systems includes a transmission path through which the RF signal does not pass simultaneously as the signal path, A reception path through which the RF signal passes, and each transmission path wiring electrode forming each transmission path is formed adjacent to the wiring board in a plan view, and the reception of the first communication system A reception path wiring electrode that forms a path is formed in a region of the wiring board on the first communication system side, and a reception path wiring electrode that forms the reception path of the second communication system is the wiring It is good to form in the area
- each reception path wiring electrode forming each reception path through which an RF signal passes simultaneously is a corresponding area of the wiring board on the first and second communication system side, respectively. Is formed. Accordingly, the reception paths of the first and second communication systems are arranged apart from each other with the transmission paths adjacent to each other and not likely to interfere with each other. It is possible to prevent inflow into the communication system, and to improve the isolation characteristics between the first and second communication systems.
- the first communication system includes a first antenna terminal
- the second communication system includes a second antenna terminal
- the first antenna terminal is the transmission path of the first communication system.
- the second antenna terminal is connected to the wiring electrode for transmission path and the reception of the second communication system. It is good to form in the edge of the area
- the 1st communication system is provided with the 1st antenna terminal and the 2nd communication system is each provided with the 2nd antenna terminal, the wiring electrode for transmission paths of a 1st communication system, and reception
- a second antenna terminal is formed at the edge of the. Therefore, the RF signal for communication is input / output via the first and second antenna terminals, but the first and second antenna terminals are spaced apart from the wiring board.
- interference between RF signals used in each communication system can be prevented, and the isolation characteristics between the first and second communication systems can be further improved.
- the wiring electrodes that form the signal path included in the circuit board are arranged adjacent to each other in a predetermined region of the wiring board, the ground electrodes and the like can be provided as in the conventional case by arranging the other signal paths apart from each other. Without use, it is possible to improve isolation characteristics between a plurality of signal paths through which RF signals provided in a plurality of communication systems pass.
- FIG. 2 is a circuit function block diagram illustrating a circuit configuration of the composite module in FIG. 1. It is a top view of the wiring board with which the composite module of FIG. 1 is provided. It is a figure which shows the conventional composite module.
- FIG. 1 is a cross-sectional view showing an embodiment of the composite module of the present invention.
- FIG. 2 is a circuit block diagram showing a circuit configuration of the composite module of FIG.
- FIG. 3 is a plan view of a wiring board provided in the composite module of FIG. 1 to 3, only the components necessary for the description of the present invention are shown for ease of explanation, and the other components are not shown.
- a composite module 1 shown in FIG. 1 is mounted on a mother board or the like provided in a communication portable terminal such as a mobile phone terminal or a portable information terminal.
- the wiring board 2 and 2.4 GHz band and 5 GHz band are provided.
- RFIC 3 having a communication function based on a plurality of communication standards using band RF signals, and a front-end module (FEM) provided corresponding to RF signals in 2.4 GHz band and 5 GHz band, respectively, and having an amplifier circuit and a switch circuit 4 and 5 and various components 6 such as a filter, a resistor, a capacitor, and a coil.
- FEM front-end module
- the RFIC 3, FEM 4, 5 and component 6 mounted on the component mounting surface 2a of the wiring board 2 are coated (molded) with a general mold resin 7 such as an epoxy resin.
- a shield layer 8 formed of silver paste is provided.
- the shield layer 8 is provided in the wiring board 2 and connected to a ground electrode (not shown) exposed from the outer surface of the wiring board 2.
- the RFIC 3, FEM 4, 5 and the component 6 are mounted on the wiring electrode provided on the mounting surface 2 a of the wiring board 2, and are connected to each other via the wiring electrode provided in the mounting surface 2 a and the wiring board 2. At the same time, it is electrically connected to a plurality of mounting electrodes (not shown) formed on the back surface of the wiring board 2. Then, the composite module 1 is mounted on a mother board or the like included in the communication portable terminal, so that various signal lines and power lines such as an antenna line, a ground line, a transmission signal line, and a reception signal line provided in the mother board are combined with the composite module. 1 are electrically connected to each other, and transmission / reception signals are input / output between the mother board and the composite module 1.
- the wiring board 2 is integrally formed as a ceramic laminate by laminating and firing a plurality of dielectric layers formed of ceramic green sheets, and each dielectric layer includes a via. Conductors and wiring electrodes are appropriately formed.
- the ceramic green sheet forming each dielectric layer is a sheet in which a slurry in which a mixed powder such as alumina and glass is mixed with an organic binder and a solvent is formed into a sheet by a film forming apparatus. It is formed to be so-called low-temperature firing at a lower temperature. Then, via holes are formed in the ceramic green sheet cut into a predetermined shape by laser processing or the like, and the formed via holes are filled with a conductive paste containing Ag, Cu, etc. Via conductors are formed, various wiring electrodes are formed by printing using a conductive paste, and each dielectric layer is formed.
- Circuit elements such as capacitors and coils are formed by wiring electrodes and via conductors provided in each dielectric layer, or circuit elements such as capacitors and coils by wiring electrodes and via conductors are combined to form filter circuits and matching circuits. Etc. may be formed.
- RFIC3 is a communication function based on the Bluetooth (registered trademark) standard for performing communication using the 2.4 GHz band, and a wireless LAN standard (IEEE 802.11a / b / g for performing communication using the 2.4 GHz band and the 5 GHz band). / N) based on the communication function (corresponding to the “first and second communication systems” of the present invention), as shown in FIG. Is arranged.
- the FEM 4 provided corresponding to the Bluetooth (registered trademark) standard and the wireless LAN standard (first communication system) that performs communication using a 2.4 GHz band RF signal is a plan view.
- the wiring board 2 is arranged on the upper left side in the figure.
- the FEM 4 includes an antenna terminal 4a (corresponding to the “first antenna terminal” of the present invention) connected to the 2.4 GHz antenna ANT1, and a 2.4 GHz band wireless LAN transmission terminal 2G / Tx of the RFIC 3.
- the FEM 4 also includes a switch circuit 41, a power amplifier (PA) 42 that amplifies a wireless LAN transmission signal (RF signal) output from the transmission terminal 2G / Tx and outputs the amplified signal to the switch circuit 41, and an antenna terminal 4a.
- a low-noise amplifier (LNA) 43 that amplifies the reception signal (RF signal) input from the switching circuit 41 and outputs it to the reception terminal 2G / Rx of the RFIC 3 through the reception terminal 4c (reception path 11). And.
- the switch circuit 41 is connected to a BT terminal 4d to which a transmission signal (RF signal) for Bluetooth (registered trademark) is input, and based on a switching signal input from a mother board on which the composite module 1 is mounted.
- a transmission signal RF signal
- Bluetooth registered trademark
- the antenna terminal 4a has a wiring electrode 13a provided on the component mounting surface 2a of the wiring board 2 and a matching circuit (not shown) formed by components 6 such as capacitors and inductors provided on the wiring electrode 13a. It is connected.
- the FEM 5 provided corresponding to the wireless LAN standard (second communication system) that performs communication using an RF signal in the 5 GHz band is directed toward the same figure of the wiring board 2 in a plan view. Located in the lower left.
- the FEM 5 includes an antenna terminal 5a (corresponding to the “second antenna terminal” of the present invention) connected to the 5 GHz antenna ANT2, a transmission terminal 5G / Tx for the 5 GHz band wireless LAN of the RFIC 3, and a reception terminal 5G. / Rx, a transmission terminal 5b and a reception terminal 5c connected via a transmission path 20 (signal path) and a reception path 21 (signal path), respectively.
- the FEM 5 is input via the switch circuit 51, the PA 52 that amplifies the wireless LAN transmission signal (RF signal) output from the transmission terminal 5G / Tx and outputs the amplified signal to the switch circuit 51, and the antenna terminal 5a. And an LNA 53 that amplifies the reception signal (RF signal) output from the switch circuit 51 and outputs it to the reception terminal 5G / Rx of the RFIC 3 via the reception terminal 5c (reception path 21).
- the switch circuit 51 is switched based on a switching signal input from the mother board on which the composite module 1 is mounted, so that the antenna terminal 5a is selectively connected to either the transmission terminal 5b or the reception terminal 5c.
- the antenna terminal 5a includes a wiring electrode 22a provided on the component mounting surface 2a of the wiring board 2 and a matching circuit (not shown) formed by components 6 such as capacitors and inductors provided on the wiring electrode 22a. It is connected.
- the switch circuit 41 provided in the FEM 4 is configured to selectively output a transmission signal (RF signal) from any one of the transmission terminals 2G / Tx and BT / Tx provided in the RFIC 3.
- the transmission signals are not simultaneously output from the transmission terminals 2G / Tx and 5G / Tx.
- the reception terminal 2G / Rx of the RFIC 3 is used in common for the communication based on the Bluetooth (registered trademark) standard and the communication based on the wireless LAN standard using a 2.4 GHz band RF signal.
- the reception path 11 constitutes the “first communication system” of the present invention.
- the wiring electrode 10a transmission path wiring electrode
- the wiring electrode 11a reception path wiring electrode
- the transmission path 12 are arranged.
- the wiring electrode 12 a to be formed, the wiring electrode 20 a (transmission path wiring electrode) that forms the transmission path 20, and the wiring electrode 21 a (reception path wiring electrode) that forms the reception path 21 are one main surface of the wiring board 2.
- the component mounting surface 2a is formed using a known technique such as screen printing using a conductive paste.
- each of the signal paths 11 to 12, 20, and 21 is formed by appropriately providing components 6 for impedance adjustment on the wiring electrodes 11a to 12a, 20a, and 21a, respectively.
- the wiring electrodes 10a and 20a that respectively form the transmission paths 10 and 20 through which the RF signal (transmission signal) does not pass are adjacently arranged and collectively formed in the central region of the wiring board 2 in plan view.
- the wiring electrode 11a forming the reception path 11 is an area of the wiring board 2 on which a wiring electrode used for communication according to the 2.4 GHz band wireless LAN standard is formed (an area on the upper side in FIG. 3). Further, it is formed in a state of being separated from the transmission path 10 (wiring electrode 10a).
- the wiring electrode 21a forming the reception path 21 is located in the area of the wiring board 2 on which the wiring electrode used for communication according to the wireless LAN standard in the 5 GHz band is formed (the lower area toward the paper surface of the figure). In addition, it is formed in a state separated from the transmission path 20 (wiring electrode 20a).
- the wiring electrode 12 a that forms the transmission path 12 used for communication according to the Bluetooth (registered trademark) standard is formed further above the wiring electrode 11 a that forms the reception path 11.
- the antenna terminal 4a connected to the 2.4GHz antenna ANT1 is a wiring board on which a transmission path 10 (wiring electrode 10a) and a receiving path 11 (wiring electrode 11a) for a wireless LAN of 2.4 GHz band are formed. 2 is formed at the edge of the upper left region in plan view.
- the antenna terminal 5a connected to the antenna ANT2 for 5 GHz is a plan view of the wiring board 2 on which the transmission path 20 (wiring electrode 20a) and the receiving path 21 (wiring electrode 21a) for the wireless LAN of 5 GHz band are formed. Is formed at the edge of the lower left region.
- via holes are formed in a ceramic green sheet formed in a predetermined shape with a laser or the like and a conductor paste is filled therein or via-fill plating is performed to form via conductors for interlayer connection.
- Electrode patterns including 12a, 20a, and 21a are printed with a conductive paste, and a ceramic green sheet for forming each dielectric layer constituting the wiring board 2 is prepared.
- Each ceramic green sheet is provided with a plurality of electrode patterns including via conductors and wiring electrodes 10a to 12a, 20a, and 21a so that a large number of wiring boards 2 can be formed at a time.
- each dielectric layer is laminated to form a laminate.
- segmenting into each wiring board 2 after baking is formed so that the area
- the assembly of the wiring board 2 is formed by firing the laminated body at a low temperature while being pressed.
- the composite module 1 is not limited to the above-described manufacturing method, and may be formed by a known general manufacturing method.
- the wiring board 2 is a printed board, LTCC, alumina using resin, ceramic, polymer material, or the like. It can be formed of a system substrate, a glass substrate, a composite material substrate, a single layer substrate, a multilayer substrate, and the like, and if the wiring board board 2 is formed by selecting an optimal material according to the purpose of use of the composite module 1. Good.
- 10a and 20a are formed adjacent to each other in a plan view in the central region of the component mounting surface 2a of the wiring board 2, and the wirings forming the receiving paths 11 and 21 through which the RF signal passes simultaneously in both communication systems.
- Electrodes 11a and 21a are formed separately from the transmission paths 10 and 20 in the area of the wiring board 2 on the side where the corresponding communication system is provided.
- the RF signal does not pass through the transmission paths 10 and 20 arranged close to each other, there is no possibility that the RF signal passing through one signal path interferes with the RF signal passing through the other signal path.
- the reception paths 11 and 21 apart from the transmission paths 10 and 20, respectively a plurality of RF signals provided in each communication system can pass through without using a ground electrode or the like as in the prior art. The isolation characteristics between the signal paths can be improved.
- the reception paths 11 and 21 of both communication systems are arranged apart from each other with the transmission paths 10 and 20 arranged adjacent to each other and not likely to interfere with each other, the RF signal of one communication system Can be prevented from flowing into the other communication system, and the isolation characteristics between the two communication systems can be improved.
- the composite module 1 can be miniaturized and highly integrated by arranging both communication systems close to each other.
- the two wiring electrodes 10a and 20a that form the transmission paths 10 and 20 that do not interfere with each other are collectively formed in the central region of the wiring board 2 in plan view.
- the wiring electrodes 11a and 21a forming the receiving paths 11 and 21 when the receiving paths 11 and 21 provided in both communication systems and the transmission path 12 for communication according to the Bluetooth (registered trademark) standard are arranged on the wiring board 2, and
- the wiring electrodes 12a forming the transmission path 12 can be arranged in the peripheral region of the wiring board 2 in plan view, and the degree of freedom of the arrangement positions of the wiring electrodes 11a, 12a, 21a in the wiring board 2 is increased.
- the degree of freedom of design 1 can be improved.
- both the wiring electrodes 10a and 20a forming the transmission paths 10 and 20 are collectively formed in the central region of the wiring board 2 in a plan view, when arranging other wiring electrodes on the wiring board 2 In addition, it is possible to easily determine the arrangement position of another wiring electrode that is optimal for reducing the mutual interference with the RF signal flowing through the transmission paths 10 and 20.
- each of the wiring electrodes 10a to 12a, 20a, 21a is formed on the component mounting surface 2a of the wiring board 2, for the purpose of improving the isolation characteristics between the wiring electrodes.
- a technique such as photolithography or screen printing is used.
- the wiring electrodes 10a to 12a, 20a, and 21a can be formed on the component mounting surface 2a of the wiring board 2 with high accuracy, and the electrodes provided below the wiring electrodes 10a to 12a, 20a, and 21a. Since only the influence of the pattern on the impedance characteristics needs to be considered, the impedance adjustment of each wiring electrode 10a to 12a, 20a, 21a, etc. It can be carried out easily.
- communication RF signals are input and output through the antenna terminals 4a and 5a, but the antenna terminals 4a and 5a are arranged apart from the upper left and lower left of the component mounting surface 2a of the wiring board 2. Therefore, it is possible to prevent the RF signals used in both communication systems from interfering with each other via the antenna terminals 4a and 5a, and it is possible to further improve the isolation characteristics between the two communication systems.
- the composite module 1 may further include a communication system, and wiring that forms a signal path included in each of at least two communication systems among a plurality of signal paths included in each communication system and through which an RF signal does not pass simultaneously. It suffices if the electrodes are arranged adjacent to each other and formed in a predetermined region of the wiring board 2.
- routes which RF signal does not pass simultaneously is arrange
- wiring electrodes transmission path wiring electrodes 10a and 20a that simultaneously form a signal path through which an RF signal does not pass are arranged adjacently on the component mounting surface 2a of the wiring board 2 in plan view.
- the wiring electrodes may be arranged adjacent to each other in the stacking direction of the wiring board 2 by providing at least one wiring electrode inside the wiring board 2.
- the arrangement position of the wiring electrode that simultaneously forms the signal path through which the RF signal does not pass is not limited to the central region of the wiring substrate 2 in plan view.
- the region of the edge of the wiring substrate in plan view When a multilayer substrate is used, the wiring electrodes that form each signal path, such as different layers, may be arranged at any position on the wiring substrate.
- the present invention is not limited to the above-described configuration of the composite module, and the present invention is widely applied to a composite module including a wiring board provided with a plurality of communication systems each performing communication using a predetermined frequency band. be able to.
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Abstract
Description
図1に示す複合モジュール1は、携帯電話端末や携帯情報端末などの通信携帯端末が備えるマザー基板等に搭載されるものであり、この実施形態では、配線基板2と、2.4GHz帯および5GHz帯のRF信号を用いた複数の通信規格による通信機能を有するRFIC3と、2.4GHz帯および5GHz帯のRF信号にそれぞれ対応して設けられ、増幅回路およびスイッチ回路を有するフロントエンドモジュール(FEM)4,5と、フィルタ、抵抗、コンデンサ、コイルなどの各種の部品6とを備えている。また、配線基板2の部品実装面2aに実装されたRFIC3、FEM4,5、部品6は、エポキシ樹脂等の一般的なモールド樹脂7により被覆(モールド)されており、モールド樹脂7の表面には、例えば銀ペーストにより形成されたシールド層8が設けられている。なお、シールド層8は、配線基板2内に設けられて、配線基板2の外側面から露出するグランド電極(図示省略)と接続されている。
この実施形態では、図3に示すように、送信経路10を形成する配線電極10a(送信経路用配線電極)、受信経路11を形成する配線電極11a(受信経路用配線電極)、送信経路12を形成する配線電極12a、送信経路20を形成する配線電極20a(送信経路用配線電極)および受信経路21を形成する配線電極21a(受信経路用配線電極)は、配線基板2の一方主面である部品実装面2aに、導電性ペーストを用いたスクリーン印刷等の周知の技術を用いて形成されている。
次に、図1の複合モジュール1の製造方法の一例についてその概略を説明する。
2 配線基板
3 RFIC(第1、第2の通信システム)
4 フロントエンドモジュール(第1の通信システム)
4a アンテナ端子(第1のアンテナ端子)
5 フロントエンドモジュール(第2の通信システム)
5a アンテナ端子(第2のアンテナ端子)
10 送信経路(信号経路)
10a 配線電極(送信経路用配線電極)
11 受信経路(信号経路)
11a 配線電極(受信経路用配線電極)
12 送信経路(信号経路)
12a 配線電極
20 送信経路(信号経路)
20a 配線電極(送信経路用配線電極)
21 受信経路(信号経路)
21a 配線電極(受信経路用配線電極)
Claims (5)
- それぞれ所定の周波数帯域を利用した通信を行う複数の通信システムが設けられた配線基板を備える複合モジュールにおいて、
前記各通信システムそれぞれは、RF信号が通過する複数の信号経路を備え、
同時に前記RF信号が通過しない前記複数の信号経路のうち、少なくとも2つの前記通信システムそれぞれが備える前記信号経路を形成する配線電極が、隣接配置されて前記配線基板の所定の領域にまとめて形成されている
ことを特徴とする複合モジュール。 - 同時に前記RF信号が通過しない前記信号経路を形成する複数の配線電極が、平面視において前記配線基板の中央の領域にまとめて形成されていることを特徴とする請求項1に記載の複合モジュール。
- 前記各配線電極は、前記配線基板の一方主面に形成されていることを特徴とする請求項1または2に記載の複合モジュール。
- 前記複数の通信システムが、第1、第2の通信システムであり、
前記第1、第2の通信システムそれぞれは、前記信号経路として、同時に前記RF信号が通過しない送信経路と、同時に前記RF信号が通過する受信経路とを備え、
前記各送信経路をそれぞれ形成する各送信経路用配線電極が、前記配線基板に平面視で隣接配置して形成され、
前記第1の通信システムの前記受信経路を形成する受信経路用配線電極が、前記配線基板の前記第1の通信システム側の領域に形成され、
前記第2の通信システムの前記受信経路を形成する受信経路用配線電極が、前記配線基板の前記第2の通信システム側の領域に形成されている
ことを特徴とする請求項1ないし3のいずれかに記載の複合モジュール。 - 前記第1の通信システムは第1のアンテナ端子を、前記第2の通信システムは第2のアンテナ端子をそれぞれ備え、
前記第1のアンテナ端子は、前記第1の通信システムの前記送信経路用配線電極および前記受信経路用配線電極が形成された前記配線基板の領域の端縁に形成され、
前記第2のアンテナ端子は、前記第2の通信システムの前記送信経路用配線電極および前記受信電極用配線電極が形成された前記配線基板の領域の端縁に形成されている
ことを特徴とする請求項4に記載の複合モジュール。
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WO2016121629A1 (ja) * | 2015-01-27 | 2016-08-04 | 株式会社村田製作所 | 高周波モジュール |
JP6288144B2 (ja) * | 2016-04-01 | 2018-03-07 | 住友大阪セメント株式会社 | 光変調器 |
FR3053547B1 (fr) * | 2016-06-29 | 2019-07-19 | Hager Controls | Carte electronique |
US10075570B2 (en) * | 2016-08-09 | 2018-09-11 | Microsoft Technology Licensing, Llc | Providing sensing ability with a wireless communication apparatus |
JP6729790B2 (ja) * | 2017-03-14 | 2020-07-22 | 株式会社村田製作所 | 高周波モジュール |
CN113381780B (zh) | 2017-03-15 | 2022-08-26 | 株式会社村田制作所 | 高频模块以及通信装置 |
WO2019119262A1 (en) * | 2017-12-19 | 2019-06-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Power amplifier and radio frequency device comprising the same |
WO2019146284A1 (ja) * | 2018-01-25 | 2019-08-01 | 株式会社村田製作所 | 高周波モジュールおよび通信装置 |
CN113632182B (zh) * | 2019-03-29 | 2022-12-30 | 株式会社自动网络技术研究所 | 布线模块 |
US11217899B2 (en) | 2019-08-05 | 2022-01-04 | Samsung Electronics Co., Ltd | Antenna module and electronic device for using the antenna module |
CN117154898B (zh) * | 2023-10-30 | 2024-02-20 | 广东仁懋电子有限公司 | 基于氮化稼的快充芯片 |
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US20140378182A1 (en) | 2014-12-25 |
US9553614B2 (en) | 2017-01-24 |
JPWO2013150969A1 (ja) | 2015-12-17 |
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