WO2014119362A1 - フラットケーブル型高周波フィルタ、フラットケーブル型高周波ダイプレクサ、および電子機器 - Google Patents
フラットケーブル型高周波フィルタ、フラットケーブル型高周波ダイプレクサ、および電子機器 Download PDFInfo
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- WO2014119362A1 WO2014119362A1 PCT/JP2014/050494 JP2014050494W WO2014119362A1 WO 2014119362 A1 WO2014119362 A1 WO 2014119362A1 JP 2014050494 W JP2014050494 W JP 2014050494W WO 2014119362 A1 WO2014119362 A1 WO 2014119362A1
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- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/2013—Coplanar line filters
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- 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
- H01P1/201—Filters for transverse electromagnetic waves
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- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20336—Comb or interdigital filters
- H01P1/20345—Multilayer filters
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- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20354—Non-comb or non-interdigital filters
- H01P1/20363—Linear resonators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
- H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
- H01P5/028—Transitions between lines of the same kind and shape, but with different dimensions between strip lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
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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
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/085—Triplate lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/088—Stacked transmission lines
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
Definitions
- the present invention relates to a flat cable type high frequency filter, a flat cable type high frequency diplexer, and a flat cable type high frequency diplexer having a frequency selection function and made of a thin flat film, and an electronic device including the flat cable type high frequency filter or flat cable type high frequency diplexer.
- an electronic device using a high frequency signal such as a portable terminal is provided with a high frequency filter in order to select a high frequency signal in a required frequency band from unnecessary high frequency signals and harmonic signals.
- a conventional high-frequency filter has a structure as shown in Patent Document 1.
- the high-frequency filter described in Patent Document 1 includes a mounting-type laminate in which a plurality of dielectric layers are laminated and sintered.
- the inductor and the capacitor constituting the high frequency filter are realized by a conductor pattern formed in the multilayer body.
- the high-frequency filter composed of such a mount-type laminate tends to limit the mounting area as electronic devices become smaller, and accordingly, the high-frequency filter is required to be downsized.
- the conductor pattern to be the inductor and capacitor formed in the multilayer body is also downsized and thinned.
- the conventional mounting type high frequency filter described above has a high frequency filter mounted on one mounting board and connected to the other mounting board with a flat cable.
- another intermediate mounting board is disposed between the two mounting boards, and a high frequency filter is mounted on the intermediate mounting board, thereby connecting to each mounting board with a flat cable.
- the mounting type laminate that realizes the high-frequency filter requires a certain height, a space corresponding to the height of the laminate is required on the mounting surface of the mounting substrate.
- an object of the present invention is to realize a space-saving high-frequency filter having low-loss transmission characteristics.
- the flat cable type high frequency filter of the present invention includes a dielectric base material, a plurality of conductor patterns, and a capacitive coupling conductor pattern.
- the dielectric substrate has a flat film shape that extends in the transmission direction of the high-frequency signal.
- the plurality of conductor patterns are formed on the dielectric substrate, and are configured by dividing the conductor pattern at an intermediate position in the extending direction of the dielectric substrate.
- the capacitive coupling conductor pattern capacitively couples between the plurality of conductor patterns.
- an inductor is formed by a plurality of conductor patterns
- a capacitor is formed by a capacitive coupling conductor pattern.
- a series resonance circuit of an inductor and a capacitor is configured by a conductor pattern formed on a flat film-like dielectric substrate, and a high frequency filter is realized by this LC series resonance circuit.
- the dielectric base material preferably has a dielectric loss tangent of 0.005 or less.
- the Q value of the LC resonance circuit that is, the high frequency filter is improved.
- a flat cable type high frequency filter having further excellent transmission characteristics can be realized.
- the dielectric base material is preferably made of a liquid crystal polymer.
- the dielectric base material of the present invention is not formed with a conductor pattern connected to the ground potential.
- the flat cable type high frequency filter of the present invention it is preferable to provide a flat film-like shield conductor pattern facing a flat film surface of a plurality of conductor patterns not forming a capacitor at a predetermined distance.
- the shield conductor pattern is preferably disposed on both sides of the conductor pattern so as to sandwich the conductor pattern.
- the bent portion is a position different from the formation region of the capacitive coupling conductor pattern along the transmission direction of the dielectric substrate.
- the capacitive coupling conductor pattern is a flat plate disposed so as to face one of the plurality of conductor patterns with a dielectric layer constituting the dielectric substrate interposed therebetween. You may form with a conductor pattern and the flat plate area
- the capacitive coupling conductor pattern is a flat conductor pattern disposed so as to be opposed to a plurality of conductor patterns with a dielectric layer constituting a dielectric substrate interposed therebetween. And a flat plate region of a plurality of conductor patterns opposed to the flat plate conductor pattern.
- the plurality of conductor patterns are formed on different surfaces sandwiching the dielectric layer constituting the dielectric substrate, and the capacitive coupling conductor pattern is formed of the plurality of conductors.
- the pattern may be constituted by regions facing each other with the dielectric layer interposed therebetween.
- the width in the direction orthogonal to the transmission direction of the conductor pattern facing the capacitive coupling conductor pattern and the width of the conductor pattern not facing the capacitive coupling conductor pattern are approximately Preferably they are the same.
- the ESR of the inductor can be made as small as possible.
- the width of the conductor pattern is preferably substantially the same as the width of the dielectric substrate.
- the ESR is reduced as much as possible while ensuring the environmental resistance of the conductor pattern.
- the capacitive coupling conductor pattern is formed integrally with the opposing ends of the plurality of conductor patterns, and is a comb-like conductor opposing at a predetermined distance along the transmission direction. There may be.
- the flat cable type high frequency filter of the present invention may have the following configuration.
- the conductor pattern is composed of a first partial conductor pattern and a second partial conductor pattern in which one end is connected.
- the first partial conductor pattern is wider than the second partial conductor pattern and is linear along the transmission direction.
- the second partial conductor pattern has a loop shape.
- a capacitor is constituted by the first partial conductor pattern, and an inductor is constituted by the second partial conductor pattern.
- a high-frequency filter having desired characteristics can be realized by a flat cable.
- the first partial conductor pattern and the second partial conductor pattern are formed in a plurality of layers constituting the dielectric base material.
- the ESR of the inductor can be reduced, and the capacitance of the capacitor can be further increased.
- the flat cable type high frequency diplexer of the present invention includes a band pass filter having the configuration of the above flat cable type high frequency filter, and a band rejection filter configured by another conductor pattern formed on the dielectric substrate. It is characterized by providing.
- An electronic apparatus includes any one of the above-described flat cable type high frequency filter or flat cable type high frequency diplexer and a plurality of mounting circuit boards, and the plurality of mounting circuit boards include the flat cable type high frequency filter or It is characterized by being connected by a flat cable type high frequency diplexer.
- the flat cable type high frequency filter or the flat cable type high frequency diplexer is arranged with a predetermined gap with respect to each of the plurality of mounting circuit boards.
- 1 is an external perspective view of a flat cable type high frequency filter according to a first embodiment of the present invention. It is an exploded perspective view of the flat cable type high frequency filter concerning a 1st embodiment of the present invention. 1 is an exploded plan view of a flat cable type high frequency filter according to a first embodiment of the present invention. It is an exploded side view of the flat cable type high frequency filter concerning a 1st embodiment of the present invention. It is the equivalent circuit and filter characteristic figure of the flat cable type
- FIG. 1 is an external perspective view of a flat cable type high frequency filter according to a first embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the flat cable type high frequency filter according to the first embodiment of the present invention.
- FIG. 3 is an exploded plan view of the flat cable type high frequency filter according to the first embodiment of the present invention.
- FIG. 4 is an exploded side view of the flat cable type high frequency filter according to the first embodiment of the present invention.
- a flat cable type high frequency filter 10 (hereinafter simply referred to as “high frequency filter 10” unless otherwise required) includes a dielectric substrate 20, a protective layer 30, external connection conductors 511 and 512. Is provided. External connection conductors 511 and 512 are disposed on one main surface of the dielectric substrate 20. Further, a protective layer 30 having an insulating property is disposed on one main surface of the dielectric substrate 20. The protective layer 30 is disposed so that the external connection conductors 511 and 512 are exposed and a capacitive coupling conductor pattern 410 described later is covered.
- the dielectric substrate 20 is made of a long flat film extending along the transmission direction of the high frequency signal and has a predetermined thickness.
- the extending direction is a longitudinal direction
- the direction orthogonal to the longitudinal direction and the thickness direction is a width direction.
- the dielectric substrate 20 has a structure in which dielectric layers 201 and 202 having a flat film shape (for example, a thickness of 25 ⁇ m to 50 ⁇ m) are stacked in the thickness direction. Become.
- the dielectric substrate 20 (dielectric layers 201 and 202) is made of a dielectric material having a low dielectric loss tangent (tan ⁇ ). More preferably, the dielectric substrate 20 (dielectric layers 201 and 202) is made of a material having a dielectric loss tangent of less than 0.005.
- a liquid crystal polymer may be used as a material.
- Conductive patterns 401 and 402 are formed on the flat surface of the dielectric layer 201 on the dielectric layer 202 side.
- the conductor patterns 401 and 402 are made of a highly conductive material, for example, copper (Cu).
- Cu copper
- a copper foil having a thickness of 10 ⁇ m to 20 ⁇ m is used.
- the conductor patterns 401 and 402 are long.
- the longitudinal directions of the conductor patterns 401 and 402 coincide with the longitudinal direction of the dielectric substrate 20.
- the conductor pattern 401 has a shape that extends from the vicinity of one end of the dielectric layer 201 to the middle in the longitudinal direction.
- the conductor pattern 402 has a shape extending from the vicinity of the other end of the dielectric layer 201 to the middle in the longitudinal direction.
- the conductor patterns 401 and 402 are not connected to each other, and a gap 400 is formed between the end portions on the opposite sides.
- the lengths of the conductor patterns 401 and 402 (the length along the longitudinal direction) are determined so as to realize a desired inductance as the inductor of the high frequency filter 10.
- the widths of the conductor patterns 401 and 402 are preferably as close as possible to the width of the dielectric substrate 20, in other words, the conductor patterns 401 and 402 are as wide as possible within a range that can be formed with respect to the dielectric substrate 20. However, it may be set as appropriate so as to realize a desired inductance as the inductor of the high-frequency filter 10.
- the width of the conductor patterns 401 and 402 is preferably 80% or more of the width of the dielectric substrate 20, and particularly preferably about 90%. That is, the widths of the conductor patterns 401 and 402 are preferably substantially the same as the width 20 of the dielectric substrate. In this configuration, the ESR is reduced as much as possible while ensuring the environmental resistance of the conductor pattern.
- a capacitive coupling conductor pattern 410 is formed on the flat surface of the dielectric layer 202 opposite to the dielectric layer 201.
- the capacitive coupling conductor pattern 410 is also made of a highly conductive material, for example, copper (Cu). In this embodiment, a copper foil having a thickness of 10 ⁇ m to 20 ⁇ m is used.
- the capacitive coupling conductor pattern 410 has a rectangular shape.
- the capacitive coupling conductor pattern 410 is opposed to a region in the vicinity of the ends of the conductive patterns 401 and 402 facing each other with the gap 400 interposed therebetween via the dielectric layer 202. At this time, the facing area between the capacitive coupling conductor pattern 410 and the conductor pattern 402 is determined so as to realize a desired capacitance as a capacitor of the high-frequency filter 10.
- the capacitive coupling conductor pattern 410 and the conductor pattern 401 are opposed to each other in an area where the connection conductor 60 made of a conductive via penetrating the dielectric layer 202 can be formed.
- the capacitive coupling conductor pattern 410 is connected to the conductor pattern 401 via the connection conductor 60.
- An external connection conductor 511 is formed on one end of the flat surface of the dielectric layer 202 opposite to the dielectric layer 201.
- the external connection conductor 511 has a substantially rectangular shape.
- the external connection conductor 511 is made of a highly conductive material, for example, copper (Cu). In this embodiment, a copper foil having a thickness of 10 ⁇ m to 20 ⁇ m is used.
- the external connection conductor 511 is connected to the vicinity of the end portion of the conductor pattern 401 opposite to the conductor pattern 402 via the connection conductor 60 penetrating the dielectric layer 202.
- An external connection conductor 512 is formed on the other end of the flat surface of the dielectric layer 202 opposite to the dielectric layer 201.
- the external connection conductor 512 has a substantially rectangular shape.
- the external connection conductor 512 is made of a highly conductive material, for example, copper (Cu).
- the external connection conductor 512 is connected to the vicinity of the end portion of the conductor pattern 402 opposite to the conductor pattern 401 via the connection conductor 60 penetrating the dielectric layer 202.
- the high frequency signal input from the external connection conductor 511 is transmitted to the capacitive coupling conductor pattern 410 via the conductor pattern 401.
- the transmitted high-frequency signal is transmitted to the conductor pattern 402 by capacitive coupling between the capacitive coupling conductor pattern 410 and the conductor pattern 402, and is output from the external connection conductor 512.
- FIG. 5A is an equivalent circuit diagram of the flat cable type high frequency filter according to the first embodiment of the present invention. As shown in FIG. 5A, the above-described configuration realizes an LC series resonance circuit in which an inductor, a capacitor, and an inductor are connected in series between the external connection conductors 511 and 512 in this order.
- the inductance of each inductor and the capacitance of the capacitor can be determined to desired values. Thereby, it is possible to realize a filter having a predetermined frequency band as a pass band and an attenuation band outside the frequency band.
- the conductor patterns 401 and 402 functioning as inductors can be formed wider than the conductor pattern of the inductor formed in the conventional mounting-type multilayer body.
- the series resistance ESR can be reduced. Thereby, the Q value of the high frequency filter can be improved and transmission loss can be suppressed.
- the opposing area of the capacitive coupling conductor pattern 410 and the conductor pattern 402 can be widened, and a large capacitance can be realized within the range of the outer shape of the flat cable type high frequency filter 10.
- the realization range of the capacitance required as a high frequency filter can be widened. This makes it easy to achieve desired high frequency filter characteristics.
- a lead conductor for connecting the inductor and the capacitor as in the conventional mounting type laminated body is not required. Therefore, an unnecessary inductance component connected to the capacitor does not occur, the Q value of the high frequency filter can be further improved, and transmission loss can be further suppressed.
- the Q value of the high frequency filter can be obtained. Can be further improved, and transmission loss can be further suppressed.
- a high-frequency filter having high flexibility can be realized while obtaining the above-described characteristics.
- the configuration of this embodiment does not use a ground conductor. With this configuration, it is possible to prevent the conductor patterns 401 and 402 and the capacitive coupling conductor pattern 410 from being coupled to the ground. Thereby, a stray capacitance does not occur, a desired Q value can be realized, and a high-frequency filter with higher accuracy and excellent filter characteristics can be realized.
- FIG. 5B is a filter characteristic diagram of the flat cable type high frequency filter according to the first embodiment of the present invention.
- FIG. 5 (B) shows the simulation results of S11 and S21. Assuming that this is used for Wi-Fi, the frequency band from the vicinity of 2.4 GHz to the vicinity of 5.0 GHz is used as the passband. The case where the conductor patterns 401 and 402 and the capacitive coupling conductor pattern 410 are configured so that the low frequency band (for example, 700 MHz band) is within the stop band is shown.
- the low frequency band for example, 700 MHz band
- a desired high-frequency signal in the frequency band from about 2.4 GHz to about 5.0 GHz is passed with low loss, and outside the pass band.
- High frequency signals can be attenuated.
- a high frequency signal in a frequency band lower than the pass band can be significantly attenuated.
- a high-frequency filter with low transmission loss and excellent filter characteristics can be realized thinly and in a space-saving manner.
- the width WC of the capacitive coupling conductor pattern 410 and the width WL of the conductor patterns 401 and 402 are the same. However, it may be substantially the same. In such a configuration, the widths of the conductor patterns 401 and 402 functioning as inductors can be set wide, the ESR of the inductor can be lowered, and the Q value of the high-frequency filter can be increased.
- the ratio between the width WC of the capacitive coupling conductor pattern 410 and the width WL of the conductor patterns 401 and 402 is preferably 1.0 ⁇ WL / WC ⁇ 0.8, for example.
- FIG. 6A is a side cross-sectional view illustrating a component configuration of the portable electronic device according to the first embodiment of the present invention
- FIG. 6B is a plan cross-sectional view illustrating the component configuration of the portable electronic device. is there.
- the electronic device 1 includes a thin device casing 2.
- Mounted circuit boards 3 ⁇ / b> A and 3 ⁇ / b> B (corresponding to “mounted circuit members” of the present invention), which are circuit elements, are arranged in the device housing 2.
- a plurality of IC chips 5 and mounting components 6 are mounted on the surfaces of the mounting circuit boards 3A and 3B.
- the mounted circuit boards 3A and 3B are installed in the device housing 2 so as to be adjacent to each other when the device housing 2 is viewed in plan view.
- the mounting circuit board 3B is formed thicker than the mounting circuit board 3A.
- the mounting circuit board 3B has a multi-function internal circuit, and the mounting circuit board 3A has such a thickness relationship when the internal circuit is relatively simple.
- the distance between the mounting circuit board 3B and the device housing 2 is extremely narrow in the thickness direction of the device housing 2. Therefore, a coaxial cable cannot be arranged to connect the mounting circuit boards 3A and 3B.
- the mounting circuit board 3A. , 3B and the device casing 2 can be passed through the flat cable type high frequency filter 10.
- the flat cable as a transmission line can be obtained by using the flat cable type high frequency filter 10 of the present embodiment. Space can be saved as compared with the case where a high frequency filter is separately prepared.
- the high-frequency filter can be formed thinner than that realized by a laminated component.
- the flat cable type high frequency filter 10 of the present embodiment has flexibility, so that the flat cable type high frequency filter 10 is bent or bent. By arranging, the flat cable type high frequency filter can be efficiently arranged in the device casing 2. Thereby, the space for arranging the flat cable type high frequency filter can be saved.
- the bending position is a position excluding the capacitor formation region, that is, the formation region of the capacitive coupling conductor pattern 410.
- the thicknesses of the dielectric layers 201 and 202 of the flexible dielectric base material 20 and the thicknesses of the conductor patterns 401 and 402 and the capacitive coupling conductor pattern 420 having a predetermined rigidity are appropriately set.
- a curved shape can be maintained.
- the thickness of the dielectric layer is preferably 25 ⁇ m to 50 ⁇ m, and the thickness of the conductor pattern and the capacitive coupling conductor pattern is preferably about half that of the dielectric layer.
- the flat cable type high frequency filter 10 can be arranged apart from (not in contact with) the mounting circuit boards 3A and 3B. Thereby, electromagnetic interference between the flat cable type high frequency filter 10 and the mounting circuit boards 3A and 3B can be suppressed, and the transmission characteristics and the high frequency filter characteristics between the mounting circuit boards 3A and 3B can be improved. In particular, if the distance is 100 ⁇ m or more, a sufficient electromagnetic interference suppressing effect can be obtained.
- FIG. 7 is a partial side view showing a method of forming a curved portion of the flat cable type high frequency filter.
- FIG. 7A is a diagram showing a flat cable type high frequency filter and a curve forming jig
- FIG. 7B is a diagram showing the flat cable type high frequency filter after the curve formation.
- the flat cable type high frequency filter 10 includes a first jig 901 having a step 911 along the thickness direction and a second jig 902 having a step 912 along the thickness direction. It is caught. At this time, the first jig 901 and the second jig 902 sandwich the flat cable type high frequency filter 10 so that the steps 911 and 912 are sandwiched and meshed with the flat cable type high frequency filter 10 in contact with both sides. Apply heat according to. Thereby, the flat cable type high frequency filter 10 can be curved at a predetermined position in the longitudinal direction.
- the edge portions of the steps 911 and 912 are chamfered, and are rounded in a cross-sectional view.
- the curved portion Be10 can be formed without damaging the flat cable type high frequency filter 10.
- FIG. 8 is an exploded plan view of a flat cable type high frequency filter according to the second embodiment of the present invention.
- the flat cable type high frequency filter 10A of the present embodiment differs from the flat cable type high frequency filter 10 according to the first embodiment only in the shape of the capacitive coupling conductor pattern 410W. Therefore, only different parts will be specifically described.
- the width WCA of the capacitive coupling conductor pattern 410W of the flat cable type high frequency filter 10A is wider than the width WL of the conductor patterns 401 and 402. Even with such a configuration, an LC series resonance circuit can be realized, and the same effects as those of the first embodiment can be obtained.
- the ratio between the width WC of the capacitive coupling conductor pattern 410W and the width WL of the conductor patterns 401 and 402 is preferably 1.0 ⁇ WL / WC ⁇ 0.8, for example.
- the opposing area is within the range of the width difference. Does not change. Therefore, the flat cable type high frequency filter 10A that achieves a desired capacitance can be more easily manufactured. In addition, variation in characteristics between products can be reduced.
- FIG. 9 is an exploded side view of a flat cable type high frequency filter according to the third embodiment of the present invention.
- the shape of the capacitive coupling conductor pattern 410B and the relationship between the capacitive coupling conductor pattern 410B and the conductor pattern 401 are the same as those of the flat cable type high frequency filter 10 according to the first embodiment. And different. Therefore, only different parts will be specifically described.
- the capacitive coupling conductor pattern 410B is formed to face the conductor pattern 401 with a predetermined area.
- the conductor pattern 401 and the capacitive coupling conductor pattern 410B are not connected by the connection conductor 60. In other words, the conductor pattern 401 and the capacitive coupling conductor pattern 410B simply face each other with the dielectric layer 202 in between.
- an LC series resonance circuit in which an inductor, a capacitor, a capacitor, and an inductor are connected in series in this order can be realized. Therefore, a desired capacitance can be realized by appropriately setting the facing area between the capacitive coupling conductor pattern 410B and the conductor patterns 401 and 402. Thereby, the effect similar to 1st Embodiment can be acquired.
- the capacitance is increased if the facing area between the capacitive coupling conductor pattern 410B and the conductor pattern 401 increases. If the facing area between the coupling conductor pattern 410B and the conductor pattern 402 decreases and the facing area between the capacitive coupling conductor pattern 410B and the conductor pattern 401 decreases, the facing area between the capacitive coupling conductor pattern 410B and the conductor pattern 402 becomes smaller. To increase. Thereby, the change of the capacitance due to the stacking position shift can be suppressed. Thereby, the flat cable type high frequency filter 10B that achieves a desired capacitance can be more reliably manufactured. In addition, variation in characteristics between products can be reduced.
- FIG. 10 is an exploded side view of a flat cable type high frequency filter according to the fourth embodiment of the present invention.
- the flat cable type high frequency filter 10C of the present embodiment is different from the flat cable type high frequency filter 10 according to the first embodiment in the shape of the conductor pattern 401C. Therefore, only different parts will be specifically described.
- the conductor pattern 401C is formed on the surface of the dielectric layer 202 opposite to the dielectric layer 201. One end of the conductor pattern 401C in the longitudinal direction is connected to the external connection conductor 511. The predetermined area near the other end of the conductor pattern 401C faces the conductor pattern 402 with a predetermined area.
- the same operational effects as those of the first embodiment described above can be obtained. Furthermore, in the configuration of the present embodiment, since the conductor pattern 401C is connected to the external connection conductor 511 on the same plane, the number of connection conductors formed can be reduced. Thereby, the structure of the flat cable type high frequency filter 10C can be further simplified, and the reliability can be improved.
- FIG. 11 is an exploded side view of a flat cable type high frequency filter according to the fifth embodiment of the present invention.
- the flat cable type high frequency filter 10D of the present embodiment is made of the same material as the flat cable type high frequency filter 10 according to the first embodiment, but is different in the configuration of the dielectric substrate and the conductor pattern. Therefore, only different parts will be specifically described.
- the dielectric base 20D is made of a single layer dielectric. Conductor patterns 401D and 402D are formed on one flat surface of the dielectric base 20D. The conductor patterns 401D and 402D are formed side by side in the longitudinal direction of the dielectric substrate 20D.
- An external connection conductor 511 is formed at one end in the longitudinal direction of the dielectric base material 20D, and an external connection conductor 512 is formed at the other end in the longitudinal direction of the dielectric base material 20D.
- the conductor pattern 401D is connected to the external connection conductor 511, and the conductor pattern 402D is connected to the external connection conductor 512.
- a comb-shaped capacitive coupling conductor pattern 411D is formed in the vicinity of the end portion of the conductor pattern 401D that is close to the conductor pattern 402D (the end portion on the side opposite to the external connection conductor 511).
- a comb-like capacitive coupling conductor pattern 412D is formed in the vicinity of an end portion of the conductor pattern 402D that is close to the conductor pattern 401D (an end portion on the side opposite to the external connection conductor 512).
- the capacitive coupling conductor patterns 411D and 412D are arranged so that the conductor fingers extending along the longitudinal direction face each other over a predetermined length along the longitudinal direction with a predetermined interval in the width direction. Yes. With such a configuration, a capacitor can be formed on the flat plate surface of the single-layer dielectric substrate 20D.
- the same operational effects as those of the first embodiment described above can be obtained. Furthermore, in the configuration of the present embodiment, since the single-layer dielectric substrate 20D is used, the structure of the flat cable type high frequency filter 10D can be further simplified and thinned, and the reliability can be improved.
- FIG. 12 is an exploded side view of a flat cable type high frequency filter according to the sixth embodiment of the present invention.
- the flat cable type high frequency filter 10E of the present embodiment has a configuration in which shield conductors 711, 712, 721, and 722 are further added to the flat cable type high frequency filter 10C according to the third embodiment. Therefore, only different portions from the flat cable type high frequency filter 10C according to the third embodiment will be specifically described.
- the dielectric base material 20E is formed by laminating dielectric layers 201, 202, 211, and 212. Dielectric layers 211 and 212 are arranged with the dielectric layers 201 and 202 interposed therebetween. The dielectric layer 211 is in contact with the dielectric layer 201, and the dielectric layer 212 is in contact with the dielectric layer 202.
- a conductor pattern 402E and a capacitive coupling conductor pattern 412E are formed on the flat surface of the dielectric layer 201 on the dielectric layer 202 side.
- a conductor pattern 401E and a capacitive coupling conductor pattern 411E are formed on the flat surface of the dielectric layer 202 on the dielectric layer 212 side.
- the capacitive coupling conductor patterns 411E and 412E are opposed to each other with the dielectric layer 202 interposed therebetween.
- Shield conductors 711 and 712 and external connection conductors 511 and 512 are formed on the flat surface of the dielectric layer 212 opposite to the dielectric layer 202.
- the external connection conductor 511 is connected to the conductor pattern 401 ⁇ / b> E by the connection conductor 60.
- the external connection conductor 512 is connected to the conductor pattern 402 ⁇ / b> E by the connection conductor 60.
- Shield conductors 721 and 722 are formed on the flat plate surface of the dielectric layer 211 opposite to the dielectric layer 201.
- the shield conductors 711 and 721 are arranged so as to overlap the conductor pattern 401E and not to overlap the capacitive coupling conductor patterns 411E and 412E when viewed in the thickness direction.
- the shield conductors 712 and 722 are arranged so as to overlap the conductor pattern 402E and not to overlap the capacitive coupling conductor patterns 411E and 412E when viewed in the thickness direction.
- the shield conductor is formed in at least one of the above-described four places, at least the action and effect peculiar to the present embodiment can be obtained.
- the shield conductor may be a solid conductor as shown in FIG. 12, or a mesh conductor.
- FIG. 13 is an exploded side view of a flat cable type high frequency filter according to a seventh embodiment of the present invention.
- the flat cable type high frequency filter 10F of the present embodiment is different from the flat cable type high frequency filter 10 according to the first embodiment in the configuration of the conductor pattern. Therefore, only different parts will be specifically described.
- Capacitive coupling conductor patterns 410F and 411F are formed on the flat surface of the dielectric layer 201 on the dielectric layer 202 side.
- Conductive patterns 401F, 402F, and 403F are formed on the flat plate surface of the dielectric layer 202 opposite to the dielectric layer 201 side.
- the conductor patterns 401F, 402F, and 403F are formed side by side in the longitudinal direction of the dielectric layer 202.
- One end of the conductor pattern 401F is connected to the external connection conductor 511.
- the other end of the conductor pattern 401F is connected to the capacitive coupling conductor pattern 410F by the connecting conductor 60.
- One end of the conductor pattern 403F is connected to the external connection conductor 512.
- the other end of the conductor pattern 403F is connected to the capacitive coupling conductor pattern 411F by a connecting conductor 60.
- the predetermined area near one end of the conductor pattern 402F faces the capacitive coupling conductor pattern 410F with a predetermined area.
- the predetermined region near the other end of the conductor pattern 402F faces the capacitive coupling conductor pattern 411F with a predetermined area.
- FIG. 14 is an equivalent circuit diagram of a flat cable type high frequency filter according to a seventh embodiment of the present invention. As shown in FIG. 14, with the above-described configuration, an LC series resonance circuit in which a capacitor, an inductor, and a capacitor are connected in series between the external connection conductors 511 and 512 is realized.
- the inductance of the inductor and the capacitance of each capacitor can be determined to desired values. Thereby, it is possible to realize a band-pass filter having a predetermined frequency band as a pass band and an attenuation band outside the frequency band.
- the flat cable type high frequency filter 10F has flexibility, the flat cable type high frequency filter 10F can be arranged by being bent or bent.
- the bending position is a position excluding the capacitor formation region, that is, the formation region of the capacitive coupling conductor patterns 410F and 411F. Thereby, a change in capacitance due to bending can be prevented, and a desired filter characteristic can be realized.
- FIG. 15 is an external perspective view of a flat cable type high frequency filter according to an eighth embodiment of the present invention.
- FIG. 16 is an exploded perspective view of a flat cable type high frequency filter according to an eighth embodiment of the present invention.
- FIG. 17 is an exploded side view of a flat cable type high frequency filter according to an eighth embodiment of the present invention.
- the flat cable type high frequency filter 10G of the present embodiment is different from the flat cable type high frequency filter 10C according to the third embodiment in the position of the external connection conductor 512G. Therefore, only different portions from the flat cable type high frequency filter 10C according to the third embodiment will be specifically described.
- the dielectric substrate 20 is formed by laminating dielectric layers 201, 202, and 211. Dielectric layers 202 and 211 are disposed with the dielectric layer 201 interposed therebetween. The dielectric layer 211 is in contact with the dielectric layer 201.
- An external connection conductor 512G is formed on the flat plate surface of the dielectric layer 211 opposite to the dielectric layer 201 side.
- the external connection conductor 512 ⁇ / b> G is connected to the conductor pattern 402 by the connection conductor 60.
- Protective layers 301 and 302 are disposed with the dielectric substrate 20 in between.
- the protective layer 301 is disposed so that the external connection conductor 512G is exposed.
- the protective layer 302 is disposed so that the external connection conductor 511 is exposed and the conductor pattern 401C is covered.
- the connector 611 is formed on one main surface of the flat cable type high frequency filter 10G and connected to the external connection conductor 511.
- the connector 612 is formed on the other main surface of the flat cable type high frequency filter 10G and connected to the external connection conductor 512G.
- the region where the conductor pattern 401C and the conductor pattern 402 face each other is formed in the vicinity of the connector 612.
- FIG. 18 is a block diagram showing a configuration of an antenna connection unit according to the eighth embodiment of the present invention.
- FIG. 19 is a side view showing the configuration of the antenna connection section according to the eighth embodiment of the present invention.
- a flat cable type high frequency filter 10G is connected between the antenna 52 and the power feeding circuit 51.
- the connection point between the antenna 52 and the flat cable type high frequency filter 10G is connected to the ground.
- the antenna connection portion may have a configuration illustrated in FIG. In FIG. 18B, a flat cable type high frequency filter 10G is connected between the antenna 52 and the ground.
- the power feeding circuit 51 is connected to the connection point between the antenna 52 and the flat cable type high frequency filter 10G.
- the power feeding circuit 51 includes a mounting substrate 3, an IC chip 5, and a mounting component 6.
- a plurality of IC chips 5 and mounting components 6 are mounted on the surface of the mounting substrate 3.
- the antenna 52 is disposed at a position away from the mounting substrate 3.
- the connector 611 of the flat cable type high frequency filter 10G is connected to the antenna 52, and the connector 612 is connected to the power feeding circuit 51. That is, the capacitor formation region related to the flat cable type high frequency filter 10 ⁇ / b> G is disposed at a position away from the antenna 52.
- the Q value may be deteriorated.
- the capacitor formation region is separated from the antenna 52 by a certain distance, so that deterioration of antenna characteristics is suppressed. be able to.
- the portion closer to the antenna 52 than the capacitor formation region is a linear conductor, so that this portion can function as a part of the antenna.
- the curved position of the flat cable type high frequency filter 10G is set to a position excluding the capacitor formation region. Thereby, a change in capacitance due to bending can be prevented, and a desired filter characteristic can be realized. Further, if this curved position is as close as possible to the capacitor formation region, the portion that also serves as the antenna can be lengthened. Moreover, the impedance of the antenna can be adjusted by adjusting the bending position.
- the connector 611 is formed on one main surface of the flat cable type high frequency filter 10G.
- the connector 612 is formed on the main surface opposite to the main surface on which the connector 611 is formed.
- the flat cable type high frequency filter 10 ⁇ / b> G is bent or bent so that the antenna 52 is mounted between the mounting substrate 3 and the antenna 52.
- a flat cable type high frequency filter 10G can be disposed.
- FIG. 20 is an exploded perspective view of a flat cable type high frequency filter according to the ninth embodiment of the present invention.
- illustration of the protective layer and the connector is omitted.
- the flat cable type high frequency filter 10H of the present embodiment has a configuration in which one main surface side of the dielectric base material 20H is connected to an external circuit, similarly to the flat cable type high frequency filter 10 according to the first embodiment.
- Each component of the flat cable type high frequency filter 10H of the present embodiment is the same as each component of the flat cable type high frequency filter shown in each of the above embodiments. Therefore, only the features characteristic of this embodiment will be specifically described.
- the flat cable type high frequency filter 10H includes a flat dielectric substrate 20H.
- the dielectric base 20H is formed by sequentially laminating dielectric layers 201H, 202H, 203H, and 204H.
- Conductor patterns 401H1 and 403H1 are formed on the main surface of the dielectric layer 201H opposite to the dielectric layer 202H (one main surface of the dielectric substrate 20H).
- the conductor pattern 401H1 includes a first partial conductor pattern 401H11 and a second partial conductor pattern 401H12.
- the first partial conductor pattern 401H11 and the conductor pattern 403H1 are arranged at intervals along the longitudinal direction of the dielectric layer 201H.
- the first partial conductor pattern 401H11 and the conductor pattern 403H1 have substantially the same width, and are formed wider than the second partial conductor pattern 401H12. If it shows functionally, it will be formed with a width necessary for forming a capacitor to be described later.
- the second partial conductor pattern 401H12 is disposed adjacent to the first partial conductor pattern 401H11 along the width direction of the dielectric layer 201H.
- the second partial conductor pattern 401H12 is a loop-shaped conductor pattern.
- the loop-shaped conductor pattern is a shape obtained by cutting a part of an annular shape.
- the one end side end of the dielectric layer 201H in the first partial conductor pattern 401H11 and the one end (outer end side end) of the second partial conductor pattern 401H12 are connected in the vicinity of one end of the dielectric layer 201H.
- the first partial conductor pattern 401H11 and the second partial conductor pattern 401H12 are connected to a lead conductor pattern 441 formed near one end of the dielectric layer 201H.
- the other end side end portion of the dielectric layer 201H in the conductor pattern 403H1 is connected to a lead conductor pattern 442 formed near the other end of the dielectric layer 201H.
- a conductor pattern 401H2 and a capacitive coupling conductor pattern 410H1 are formed on the main surface of the dielectric layer 202H on the dielectric layer 201H side.
- the conductor pattern 401H2 includes a first partial conductor pattern 401H21 and a second partial conductor pattern 401H22.
- the first partial conductor pattern 401H21 is rectangular and faces a part of the first partial conductor pattern 401H11 with the dielectric layer 201H interposed therebetween.
- the first partial conductor pattern 401H21 is connected to the first partial conductor pattern 401H11 by a connection conductor 60 that penetrates the dielectric layer 201H in the thickness direction.
- the second partial conductor pattern 401H22 is disposed adjacent to the first partial conductor pattern 401H21 along the width direction of the dielectric layer 202H.
- the second partial conductor pattern 401H22 is a loop-shaped conductor pattern.
- the second partial conductor pattern 401H22 is formed so as to overlap the second partial conductor pattern 401H12 when viewed in the direction orthogonal to the main surface.
- One end (outer peripheral end) of the second partial conductor pattern 401H22 is connected to the first partial conductor pattern 401H21.
- the other end (inner peripheral side end) of the second partial conductor pattern 401H22 is connected to the other end (inner peripheral side end) of the second partial conductor pattern 401H12 by the connecting conductor 60 penetrating the dielectric layer 201H in the thickness direction. It is connected.
- the capacitive coupling conductor pattern 410H1 has a rectangular shape and faces both the first partial conductor pattern 401H11 and the conductor pattern 403H1 with the dielectric layer 201H interposed therebetween.
- a facing portion between the capacitive coupling conductor pattern 410H1 and the first partial conductor pattern 401H11 is a capacitor C21H.
- a facing portion between the capacitive coupling conductor pattern 410H1 and the conductor pattern 403H1 is a capacitor C10H.
- the conductor pattern 402H1 includes a first partial conductor pattern 402H11 and a second partial conductor pattern 402H12.
- the capacitive coupling conductor pattern 410H2 and the first partial conductor pattern 402H11 are arranged at intervals along the longitudinal direction of the dielectric layer 203H.
- the capacitive coupling conductor pattern 410H2 and the first partial conductor pattern 402H11 have substantially the same width.
- the capacitive coupling conductor pattern 410H2 is connected to the first partial conductor pattern 401H21 by a connection conductor 60 that penetrates the dielectric layer 202H in the thickness direction.
- the first partial conductor pattern 402H11 has a rectangular shape and faces a part of the capacitive coupling conductor pattern 410H1 with the dielectric layer 202H interposed therebetween.
- the first partial conductor pattern 402H11 is connected to the capacitive coupling conductor pattern 410H1 by a connection conductor 60 that penetrates the dielectric layer 202H in the thickness direction.
- the second partial conductor pattern 402H12 is disposed adjacent to the capacitive coupling conductor pattern 410H2 along the width direction of the dielectric layer 203H.
- the second partial conductor pattern 402H12 is a loop-shaped conductor pattern.
- One end (outer peripheral end) of the second partial conductor pattern 402H12 is connected to the first partial conductor pattern 402H11.
- the other end (inner peripheral side end) of the second partial conductor pattern 402H12 overlaps the other end (inner peripheral side end) of the second partial conductor patterns 401H22 and 401H12 when viewed in the direction orthogonal to the main surface. .
- the other end (inner peripheral side end) of the second partial conductor pattern 402H12 is connected to the other end (inner peripheral side end) of the second partial conductor pattern 401H22 by the connecting conductor 60 penetrating the dielectric layer 202H in the thickness direction. It is connected.
- the capacitive coupling conductor pattern 410H2 has a rectangular shape, and faces the first partial conductor pattern 401H21 and the capacitive coupling conductor pattern 410H1 with the dielectric layer 202H interposed therebetween.
- the capacitive coupling conductor pattern 410H2 is connected to the first partial conductor pattern 401H21 by a connection conductor 60 that penetrates the dielectric layer 202H in the thickness direction.
- a portion where the capacitive coupling conductor patterns 410H1 and 410H2 face each other is a capacitor C22H.
- a conductor pattern 402H2 is formed on the main surface of the dielectric layer 204H on the dielectric layer 203H side.
- the conductor pattern 402H2 includes a first partial conductor pattern 402H21 and a second partial conductor pattern 402H22.
- the first partial conductor pattern 402H21 is rectangular and faces part of the capacitive coupling conductor pattern 410H2 via the dielectric layer 203H and the first partial conductor pattern 402H11.
- the first partial conductor pattern 402H21 is connected to the first partial conductor pattern 402H11 by a connection conductor 60 that penetrates the dielectric layer 203H in the thickness direction.
- a portion where the first partial conductor pattern 402H21 and the capacitive coupling conductor pattern 410H2 face each other is a capacitor C23H.
- the second partial conductor pattern 402H22 is a loop-shaped conductor pattern.
- the second partial conductor pattern 402H22 overlaps the second partial conductor pattern 402H12 when viewed in the direction orthogonal to the main surface.
- One end (outer peripheral end) of the second partial conductor pattern 402H22 is connected to the first partial conductor pattern 402H21.
- the other end (inner peripheral side end) of the second partial conductor pattern 402H22 is connected to the other end (inner peripheral side end) of the second partial conductor pattern 402H12 by the connecting conductor 60 penetrating the dielectric layer 203H in the thickness direction. It is connected.
- the 2nd partial conductor pattern 401H12, 401H22, 402H12, 402H22 is arrange
- FIG. 21 is an equivalent circuit diagram of a flat cable type high frequency filter according to the ninth embodiment of the present invention.
- a series circuit of an inductor L10H and a capacitor C10H is connected between the lead conductor patterns 441 and 442.
- Capacitors C21H, C22H, and C23H are connected in parallel to the inductor L10H. That is, a filter circuit having both LC series resonance and LC parallel resonance can be configured.
- FIG. 22 is a graph showing the transmission characteristics of the flat cable type high frequency filter according to the ninth embodiment of the present invention.
- FIG. 22A shows transmission characteristics
- FIG. 22B shows reflection characteristics.
- the element values of the inductor L10H and the capacitors C10H, C21H, C22H, and C23H are determined so as to obtain a characteristic that allows the high-frequency signal having the frequency f0 to pass and attenuates the high-frequency signal having the frequency f1. That is, the shapes of the dielectric base material 10H and each conductor pattern are determined so as to obtain this element value.
- a high-frequency signal having a frequency f0 to be transmitted is transmitted with low loss, and as shown in FIG. 22 (B), a frequency f1 to be attenuated is transmitted.
- the high frequency signal can be greatly attenuated.
- the frequency f0 is approximately 1.575 GHz as a GPS signal frequency
- the frequency f1 is a 1.7 GHz communication band.
- a high-frequency signal having a frequency f0 (1.575 GHz) to be transmitted is transmitted with low loss, and a high-frequency signal having a frequency f1 (1.7 GHz band) to be attenuated is greatly increased.
- the same portion of the conductor pattern constituting the inductor L10H is formed by a plurality of layers of conductor patterns.
- the ESR of the inductor L10H can be reduced, and further, a low loss and steep passage and attenuation characteristic can be realized.
- FIG. 23 is an exploded perspective view of a flat cable type high frequency filter according to the tenth embodiment of the present invention.
- the protective layer and the connector are not shown.
- the flat cable type high frequency filter 10I of the present embodiment is different from the flat cable type high frequency filter 10H shown in the ninth embodiment in the configuration of a part of the conductor pattern, and other basic configurations are as follows. The same.
- the flat cable type high frequency filter 10I includes a dielectric substrate 20I in which dielectric layers 201I, 202I, 203I, and 204I are laminated.
- the configuration of each conductor pattern of the dielectric layers 201I, 202I, and 203I is the same as that of the dielectric layers 201H, 202H, and 203H shown in the ninth embodiment.
- a conductor pattern 402I2 and a lead conductor 443 are formed on the main surface of the dielectric layer 204I opposite to the dielectric layer 203I.
- the conductor pattern 402I2 has a shape that is symmetrical with respect to the conductor pattern 402H2 shown in the ninth embodiment, with the main surface of the dielectric layer as a reference plane.
- the lead conductor 443 is formed in a shape overlapping the lead conductor 441 when viewed in a direction orthogonal to the main surface of the dielectric base material 20I.
- the lead conductor 443 is connected to the lead conductor 441 by a connection conductor 60 that penetrates the dielectric layers 201I, 202I, 203I, and 204I, that is, penetrates the dielectric base material 20I.
- the lead conductor 443 is connected to an external connection conductor or a connector, and the lead conductor 441 is not exposed to the outside.
- one external connection portion of the flat cable type high frequency filter 10I is on one main surface side, and the other external connection portion is on the other main surface side. It becomes. Thereby, even if the external circuit board which should be connected is arrange
- FIG. 24 is an exploded perspective view of a flat cable type high frequency filter according to an eleventh embodiment of the present invention.
- the protective layer and the connector are not shown.
- the flat cable type high frequency filter 10J of this embodiment is obtained by removing two dielectric layers from the flat cable type high frequency filter 10J shown in the tenth embodiment, and the other basic configurations are the same. It is.
- the flat cable type high frequency filter 10J includes a dielectric base material 20J in which dielectric layers 201J and 204J are laminated.
- the configuration of each conductor pattern of the dielectric layers 201J and 204J is the same as that of the dielectric layers 201I and 204I shown in the tenth embodiment.
- the first partial conductor pattern 402J21 also serves as a capacitive coupling conductor pattern.
- the flat cable type high frequency filter 10J according to the present embodiment has one capacitor connected in parallel to the inductor, this configuration may be used if desired transmission characteristics can be obtained. By using this configuration, the number of dielectric layers can be reduced, and the flat cable type high frequency filter 10J can be formed thinner.
- FIG. 25 is a block diagram of a communication device module according to the embodiment of the present invention.
- FIG. 26 is a side view showing a schematic configuration of the communication device module according to the embodiment of the present invention. 25 and 26 show a mode in which the flat cable type high frequency filter 10I shown in the tenth embodiment is used.
- the communication device module 900 includes an antenna 930, a WiFi transmission / reception unit 931, a cellular transmission / reception unit 932, a GPS reception unit 933, a band rejection filter (BEF) 921, and a band pass filter (BPF). 922.
- the antenna 930 is connected to the WiFi transmission / reception unit 931 and the cellular transmission / reception unit 932 via the band rejection filter 921. In addition, the antenna 930 is connected to the GPS receiving unit 933 via the band pass filter 922.
- the WiFi transmission / reception unit 931 transmits / receives a WiFi communication signal using a frequency band such as a 2.4 GHz band.
- the cellular transmission / reception unit 932 transmits / receives a cellular communication signal using a frequency band such as a 900 MHz band or a frequency band such as a 1.7 GHz band or a 2.0 GHz band.
- the GPS receiving unit 933 receives a GPS signal near 1.5 GHz.
- the band rejection filter 921 attenuates the frequency band of the GPS signal and passes the frequency band of the WiFi communication signal and the cellular communication signal.
- the band pass filter 922 passes the frequency band of the GPS signal and attenuates a frequency band other than the frequency band of the GPS signal.
- the flat cable type high frequency filter 10I shown in the tenth embodiment is used for the band pass filter 922.
- a band rejection filter having a narrow attenuation band with a steep attenuation characteristic can be realized. Therefore, if an attenuation pole is set in the frequency band of the GPS signal, the GPS signal is attenuated, and another communication signal (for example, a 1.7 GHz band of the cellular communication signal) that is close to the frequency band of the GPS signal is used. Transmission can be performed without attenuation.
- the communication device module 900 having such a circuit configuration includes a front end substrate 990, an antenna substrate 991, and a flat cable type high frequency filter 10I.
- a front end substrate 990 On the mounting surface of the front-end substrate 990, circuit components for realizing the above-described WiFi transmission / reception unit 931, cellular transmission / reception unit 932, GPS reception unit 933, and the like are mounted.
- An antenna 930 is formed on the antenna substrate 991.
- the antenna substrate 911 is disposed on the mounting surface side of the front end substrate 990 and spaced from the front end substrate 990.
- the connector 611 attached to the flat cable type high frequency filter 10I is connected to the surface of the antenna substrate 991 on the front end substrate 990 side.
- the connector 612 attached to the flat cable type high frequency filter 10I is connected to the surface (mounting surface) of the front end substrate 990 on the antenna substrate 991 side. Since the flat cable type high frequency filter 10I has flexibility, a bent portion can be formed in the middle of the extending direction. In this way, by forming the bent portion, the flat cable type high frequency filter 10I can connect the front end substrate 990 and the antenna substrate 991 in a state where the flat cable type high frequency filter 10I is shaped so as not to contact the circuit components. .
- the flat cable type high frequency filter 10I includes the band pass filter, it is not necessary to form the band pass filter on the front end substrate 990 or the antenna substrate 991. Therefore, the front end substrate 990 and the antenna substrate 991 can be formed in a small size. Further, by providing the band pass filter in the flat cable type high frequency filter 10I, the filter characteristics (pass characteristics and attenuation characteristics) of the band pass filter are excellent. Therefore, the communication characteristics of the communication device module 900 can be improved.
- FIG. 27 is an exploded perspective view of a flat cable type high frequency diplexer according to a twelfth embodiment of the present invention.
- illustration of the protective layer and the connector is omitted.
- the flat cable type high frequency diplexer 90 of this embodiment includes a dielectric base material 20K formed by laminating dielectric layers 201K, 202K, 203K, and 204K.
- the dielectric layer 201K includes partial regions 201K1, 201K2, and 201K3.
- the partial areas 201K1 and 201K2 have a long shape extending along the longitudinal direction, and are arranged at intervals in the width direction.
- the partial area 201K3 is disposed at one end in the longitudinal direction of the partial areas 201K1 and 201K2, and connects the partial areas 201K1 and 201K2. With this configuration, the dielectric layer 201K has a shape that is divided into two regions in the width direction in the middle of the longitudinal direction.
- the dielectric layer 202K includes partial regions 202K1, 202K2, and 202K3.
- the partial areas 202K1 and 202K2 have a long shape extending along the longitudinal direction, and are arranged at intervals in the width direction.
- the partial area 202K3 is disposed at one end in the longitudinal direction of the partial areas 202K1 and 202K2, and connects the partial areas 202K1 and 202K2.
- the dielectric layer 202K has a shape that is divided into two regions in the width direction in the middle of the longitudinal direction.
- the dielectric layer 203K includes partial regions 203K1, 203K2, and 203K3.
- the partial regions 203K1 and 203K2 have a long shape extending along the longitudinal direction, and are arranged at intervals in the width direction.
- the partial area 203K3 is arranged at one end in the longitudinal direction of the partial areas 203K1 and 203K2, and connects the partial areas 203K1 and 203K2.
- the dielectric layer 203K has a shape that is divided into two regions in the width direction in the middle of the longitudinal direction.
- the dielectric layer 204K includes partial regions 204K1, 204K2, and 204K3.
- the partial regions 204K1 and 204K2 have a long shape extending along the longitudinal direction, and are arranged at intervals in the width direction.
- the partial area 204K3 is disposed at one end in the longitudinal direction of the partial areas 204K1 and 204K2, and connects the partial areas 204K1 and 204K2.
- the dielectric layer 204K has a shape that is divided into two regions in the width direction in the middle of the longitudinal direction.
- the same conductive pattern as the conductive pattern shown in the ninth embodiment is formed on the first base portion composed of the partial areas 201K1, 202K1, 203K1, and 204K1 in the dielectric base material 20K.
- a band pass filter connected between the lead conductors 441K and 442K is realized in the portion formed of the partial regions 201K1, 202K1, 203K1, and 204K1 in the dielectric base material 20K.
- a loop-shaped conductor pattern 601 is formed in the partial region 201K2 of the dielectric layer 201K.
- the loop-shaped conductor pattern 601 includes a linear first conductor pattern 6011, a second conductor pattern 6012, a third conductor pattern 6013, a fourth conductor pattern 6014, and a fifth conductor pattern 6015, respectively.
- the first conductor pattern 6011 has a shape extending in the width direction of the partial region 201K2, and is formed near the end of the partial region 201K3 on the side of the partial region 201K3.
- the first conductor pattern 6011 is connected to the lead conductor 441K.
- the second conductor pattern 6012 has a shape extending in the width direction of the partial region 201K2, and is formed in the vicinity of the end opposite to the end on the partial region 201K3 side in the longitudinal direction of the partial region 201K2.
- the second conductor pattern 6012 is connected to a lead conductor 443K formed in the vicinity of the end on the side opposite to the end on the partial region 201K3 side in the longitudinal direction of the partial region 201K2.
- the lead conductor 443K is connected to a connector or the like (not shown) in the same manner as the lead conductor 442K.
- the third conductor pattern 6013 has a shape extending in the longitudinal direction of the partial region 201K2, and is formed in the partial region 201K2 near the end on the partial region 201K1 side.
- the third conductor pattern 6013 is connected to the first conductor pattern 6011 and the second conductor pattern 6012.
- the fourth and fifth conductor patterns 6014 and 6015 have a shape extending in the longitudinal direction of the partial area 201K2, and are formed in the partial area 201K2 near the end opposite to the partial area 201K1 side.
- the fourth and fifth conductor patterns 6014 and 6015 are arranged at intervals along the longitudinal direction of the partial region 201K2.
- the fourth conductor pattern 6014 is connected to the first conductor pattern 6011, and the fifth conductor pattern 6015 is connected to the second conductor pattern 6012.
- a loop-shaped conductor pattern 602 is formed in the partial region 202K2 of the dielectric layer 202K.
- the loop-shaped conductor pattern 602 includes a linear first conductor pattern 6021, a second conductor pattern 6022, a third conductor pattern 6023, a fourth conductor pattern 6024, and a fifth conductor pattern 6025, respectively.
- the first conductor pattern 6021 has a shape extending in the width direction of the partial region 202K2, and is formed in the vicinity of the end portion on the partial region 202K3 side in the longitudinal direction of the partial region 202K2.
- the first conductor pattern 6021 is formed so as to overlap with the first conductor pattern 6011 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the second conductor pattern 6022 has a shape extending in the width direction of the partial region 202K2, and is formed in the vicinity of the end opposite to the end on the partial region 202K3 side in the longitudinal direction of the partial region 202K2.
- the second conductor pattern 6022 is formed so as to overlap the second conductor pattern 6012 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the third conductor pattern 6023 has a shape extending in the longitudinal direction of the partial region 202K2, and is formed in the partial region 202K2 near the end on the partial region 202K1 side.
- the third conductor pattern 6023 is connected to the first conductor pattern 6021 and the second conductor pattern 6022.
- the third conductor pattern 6023 is formed so as to overlap the third conductor pattern 6013 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the fourth and fifth conductor patterns 6024 and 6025 have a shape extending in the longitudinal direction of the partial region 202K2, and are formed in the partial region 202K2 near the end opposite to the partial region 202K1 side.
- the fourth and fifth conductor patterns 6024 and 6025 are arranged at intervals along the longitudinal direction of the partial region 202K2.
- the fourth conductor pattern 6024 is connected to the first conductor pattern 6021, and the fifth conductor pattern 6025 is connected to the second conductor pattern 6022.
- the fourth conductor pattern 6024 is formed so as to overlap the fourth conductor pattern 6014 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the fifth conductor pattern 6025 is formed so as to overlap the fourth conductor pattern 6014 and the fifth conductor pattern 6015 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- a loop-shaped conductor pattern 603 is formed in the partial region 203K2 of the dielectric layer 203K.
- the loop-shaped conductor pattern 603 includes a linear first conductor pattern 6031, a second conductor pattern 6032, a third conductor pattern 6033, a fourth conductor pattern 6034, and a fifth conductor pattern 6035, respectively.
- the first conductor pattern 6031 has a shape extending in the width direction of the partial region 203K2, and is formed in the vicinity of the end portion on the partial region 203K3 side in the longitudinal direction of the partial region 203K2.
- the first conductor pattern 6031 is formed so as to overlap with the first conductor patterns 6011 and 6021 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the second conductor pattern 6032 has a shape extending in the width direction of the partial region 203K2, and is formed in the vicinity of the end on the side opposite to the end on the partial region 203K3 side in the longitudinal direction of the partial region 203K2.
- the second conductor pattern 6032 is formed so as to overlap with the second conductor patterns 6012 and 6022 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the third conductor pattern 6033 has a shape extending in the longitudinal direction of the partial region 203K2, and is formed in the partial region 203K2 near the end on the partial region 203K1 side.
- the third conductor pattern 6033 is connected to the first conductor pattern 6031 and the second conductor pattern 6032.
- the third conductor pattern 6033 is formed so as to overlap with the third conductor patterns 6013 and 6023 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the fourth and fifth conductor patterns 6034 and 6035 have a shape extending in the longitudinal direction of the partial region 203K2, and are formed in the partial region 203K2 near the end opposite to the partial region 203K1 side.
- the fourth and fifth conductor patterns 6034 and 6035 are arranged at intervals along the longitudinal direction of the partial region 203K2.
- the fourth conductor pattern 6034 is connected to the first conductor pattern 6031, and the fifth conductor pattern 6035 is connected to the second conductor pattern 6032.
- the fourth conductor pattern 6034 is formed so as to overlap the fourth conductor pattern 6024 and the fifth conductor pattern 6025 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the fifth conductor pattern 6035 is formed so as to overlap the fifth conductor pattern 6025 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- a loop-shaped conductor pattern 604 is formed in the partial region 204K2 of the dielectric layer 204K.
- the loop-shaped conductor pattern 604 includes a linear first conductor pattern 6041, a second conductor pattern 6042, a third conductor pattern 6043, a fourth conductor pattern 6044, and a fifth conductor pattern 6045, respectively.
- the first conductor pattern 6041 has a shape extending in the width direction of the partial region 204K2, and is formed in the vicinity of the end portion on the partial region 204K3 side in the longitudinal direction of the partial region 204K2.
- the first conductor pattern 6041 is formed so as to overlap the first conductor patterns 6011, 6021, and 6031 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20 ⁇ / b> K.
- the second conductor pattern 6042 has a shape extending in the width direction of the partial region 204K2, and is formed in the vicinity of the end opposite to the end on the partial region 204K3 side in the longitudinal direction of the partial region 202K2.
- the second conductor pattern 6042 is formed so as to overlap the second conductor patterns 6012, 6022, and 6032 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20 ⁇ / b> K.
- the third conductor pattern 6043 has a shape extending in the longitudinal direction of the partial region 204K2, and is formed in the partial region 204K2 near the end on the partial region 204K1 side.
- the third conductor pattern 6043 is connected to the first conductor pattern 6041 and the second conductor pattern 6042.
- the third conductor pattern 6043 is formed so as to overlap with the third conductor patterns 6013, 6023, and 6033 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the fourth and fifth conductor patterns 6044 and 6045 have a shape extending in the longitudinal direction of the partial region 204K2, and are formed in the partial region 204K2 near the end opposite to the partial region 204K1 side.
- the fourth and fifth conductor patterns 6044 and 6045 are arranged at intervals along the longitudinal direction of the partial region 204K2.
- the fourth conductor pattern 6044 is connected to the first conductor pattern 6041, and the fifth conductor pattern 6045 is connected to the second conductor pattern 6042.
- the fourth conductor pattern 6044 is formed so as to overlap the fourth conductor pattern 6034 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the fifth conductor pattern 6045 is formed so as to overlap the fourth conductor pattern 6034 and the fifth conductor pattern 6035 when viewed in the direction orthogonal to the main surface of the dielectric substrate 20K.
- the first conductor patterns 6011, 6021, 6031, and 6041 of each layer are connected by a connection conductor 60 that extends in the thickness direction of the dielectric substrate 20K.
- the second conductor patterns 6012, 6022, 6032, and 6042 of each layer are connected by a connection conductor 60 that extends in the thickness direction of the dielectric substrate 20K.
- the third conductor patterns 6013, 6023, 6033, and 6043 of each layer are connected by a connection conductor 60 that extends in the thickness direction of the dielectric substrate 20K.
- the fourth conductor patterns 6014, 6024, 6034, and 6044 of each layer are connected by a connection conductor 60 that extends in the thickness direction of the dielectric substrate 20K.
- the fifth conductor patterns 6015, 6025, 6035, and 6045 of each layer are connected by a connection conductor 60 that extends in the thickness direction of the dielectric substrate 20K.
- a portion mainly composed of the third conductor patterns 6013, 6023, 6033, and 6043 becomes an inductor.
- the region from the point connected to the lead conductor 441K in the first conductor patterns 6011, 6021, 6031, and 6041 to the end connected to the third conductor pattern, and the lead conductors in the second conductor patterns 6012, 6022, 6032, and 6043 The region from the point connected to 443K to the end connected to the third conductor pattern also functions as an inductor continuous with the inductor composed of the third conductor patterns 6013, 6023, 6033, and 6043.
- the opposing portion of the fourth conductor pattern 6014 and the fifth conductor pattern 6025, the opposing portion of the fifth conductor pattern 6025 and the fourth conductor pattern 6034, and the opposing portion of the fourth conductor pattern 6034 and the fifth conductor pattern 6045 serve as a capacitor.
- an LC parallel resonance type band-stop filter in which an inductor and a capacitor are connected in parallel is realized in the second base material portion composed of the partial regions 201K2, 202K2, 203K2, and 204K2 in the dielectric base material 20K. That is, a band rejection filter connected between the lead conductors 441K and 443K is realized in a portion of the dielectric base material 20K including the partial regions 201K1, 202K1, 203K1, and 204K1.
- This band rejection filter is excellent in the band rejection characteristic (attenuation characteristic) because the flat cable itself is a band rejection filter as in the above-described band pass filter.
- a high-frequency diplexer can be realized by the dielectric base material 20K on which each conductor pattern is formed. Thereby, a high-frequency diplexer that is thin and excellent in transmission characteristics can be realized.
- the flat cable type high-frequency diplexer 90 of the present embodiment connects, for example, a band rejection filter (BEF) 921 and a band pass filter (BPF) 922 shown in the circuit diagram of FIG. It can be used for a portion composed of a transmission line portion.
- BEF band rejection filter
- BPF band pass filter
- the flat cable type high frequency diplexer 90 of the present embodiment can connect the antenna substrate 991 and the front end substrate 990 in the mounting manner as shown in FIG. 26, for example.
- variable capacitance element may be attached to the above-described flat cable type high frequency filter or flat cable type high frequency diplexer, and may be connected in series to an inductor and a capacitor constituting the above high frequency filter.
- a land conductor on which the mountable variable capacitance element can be mounted is formed in the vicinity of the arrangement position of the external connection conductor, and the mountable variable capacitance element is mounted on the land conductor.
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Abstract
Description
2:機器筐体、
3,3A,3B:実装回路基板、
4:バッテリーパック、
5:ICチップ、
6:実装部品、
10,10A,10B,10C,10D,10E,10F,10G,10H,10I,10J:フラットケーブル型高周波フィルタ、
20,20D,20H,20I,20J,20K:誘電体基材、
30,301,302:保護層、
51:給電回路、
52:アンテナ、
90:ダイプレクサ、
201,202,211,212,201H,202H,203H,204H,201I,202I,203I,204I,201J,204J,201K,202K,203K,204K:誘電体層、
201K1,201K2,201K3,202K1,202K2,202K3,203K1,203K2,203K3,204K1,204K2,204K3:部分領域、
401,402,401C,401D,402D,401E,401F,402F,403F,401H1,401H2,402H1,402H2,403H1,401I1,401I2,402I1,402I2,403I1,401J1,402J2,403J1:導体パターン、
401H11,401H21,402H11,402H21,401I11,401I21,402I11,402I21,401J11,402J21:第1部分導体パターン
401H12,401H22,402H12,402H22,401I12,401I22,402I12,402I22,401J12,402J22:第2部分導体パターン
410,410B,410W,411D,412D,411E,412E,410F,411F,410H1,410H2,410I1,410I2:容量結合用導体パターン、
441,442,443:引き出し導体パターン
511,512,512G:外部接続用導体、
601,602,603,604:ループ状導体パターン、
6011,6021,6031,6041:第1導体パターン、
6012,6022,6032,6042:第2導体パターン、
6013,6023,6033,6043:第3導体パターン、
6014,6024,6034,6044:第4導体パターン、
6015,6025,6035,6045:第5導体パターン、
611,612:コネクタ、
711,712,721,722:シールド導体、
900:通信機器モジュール、
921:帯域阻止フィルタ(BEF)、
922:帯域通過フィルタ(BPF)、
930:アンテナ、
931:WiFi送受信部、
932:セルラー送受信部、
933:GPS受信部、
990:フロントエンド基板、
991:アンテナ基板、
901:第1治具、
902:第2治具、
911,912:段差
Claims (20)
- 高周波信号の伝送方向に伸長する形状からなる平膜状の誘電体基材と、
該誘電体基材に形成され、該誘電体基材の伸長する方向の途中位置で分断された複数の導体パターンと、
前記複数の導体パターン間を容量結合する容量結合用導体パターンと、を備え、
前記複数の導体パターンによりインダクタを形成し、前記容量結合用導体パターンによりキャパシタを形成してなるフラットケーブル型高周波フィルタ。 - 前記誘電体基材は、誘電正接が0.005以下である、請求項1に記載のフラットケーブル型高周波フィルタ。
- 前記誘電体基材は、液晶ポリマからなる、請求項2に記載のフラットケーブル型高周波フィルタ。
- 前記誘電体基材には、グランド電位に接続する導体パターンが形成されていない、請求項1乃至請求項3のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記キャパシタを形成していない前記複数の導体パターンの平膜面に対して所定距離をおいて対向する平膜状のシールド導体パターンを備える、請求項1乃至請求項4のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記シールド導体パターンは、前記導体パターンを挟み込むように前記導体パターンの両側に配置されている、請求項5に記載のフラットケーブル型高周波フィルタ。
- 前記誘電体基材の前記伝送方向に沿った前記容量結合用導体パターンの形成領域と異なる位置が折り曲げ部である、請求項1乃至請求項6のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記容量結合用導体パターンは、前記複数の導体パターンの一方に対して前記誘電体基材を構成する誘電体層を挟んで対向するように配設される平板導体パターンと、該平板導体パターンに対向する前記一方の導体パターンの平板領域と、によって形成されている、請求項1乃至請求項7のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記容量結合用導体パターンは、前記複数の導体パターンに対して前記誘電体基材を構成する誘電体層を挟んで対向するように配設される平板導体パターンと、該平板導体パターンに対向する前記複数の導体パターンの平板領域と、によって形成されている、請求項1乃至請求項7のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記複数の導体パターンは、前記誘電体基材を構成する誘電体層を挟むそれぞれ別の面に形成されており、
前記容量結合用導体パターンは、前記複数の導体パターンが前記誘電体層を挟んで対向する領域によって構成されている、請求項1乃至請求項7のいずれかに記載のフラットケーブル型高周波フィルタ。 - 前記容量結合用導体パターンに対向する導体パターンの前記伝送方向に直交する方向の幅と、前記容量結合用導体パターンに対向しない導体パターンの前記幅とは、略同じである、請求項8乃至請求項10のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記導体パターンの幅は、前記誘電体基材の幅と略同じである、請求項11に記載のフラットケーブル型高周波フィルタ。
- 前記容量結合用導体パターンは、前記複数の導体パターンの対向する端部に一体形成されており、前記伝送方向に沿った所定距離で対向する櫛歯状導体である、請求項1乃至請求項7のいずれかに記載のフラットケーブル型高周波フィルタ。
- 前記導体パターンは、互いの一方端が接続された第1部分導体パターンと第2部分導体パターンとから構成され、
前記第1部分導体パターンは、前記第2部分導体パターンよりも幅広で、前記伝送方向に沿って直線状であり、
前記第2部分導体パターンはループ状であり、
前記第1部分導体パターンによって、前記キャパシタが構成され、
前記第2部分導体パターンによって、前記インダクタが構成される、
請求項1乃至請求項7のいずれかに記載のフラットケーブル型高周波フィルタ。 - 前記第1部分導体パターンおよび前記第2部分導体パターンは、前記誘電体基材を構成する複数層に形成されている、請求項14に記載のフラットケーブル型高周波フィルタ。
- 請求項14または請求項15に記載のフラットケーブル型高周波フィルタの構成を有する帯域通過フィルタと、
前記誘電体基材に形成された別の導体パターンによって構成された帯域阻止フィルタと、を備えたフラットケーブル型高周波ダイプレクサ。 - 請求項1乃至請求項15のいずれかに記載のフラットケーブル型高周波フィルタと、
複数の実装回路部材と、を備え、
前記複数の実装回路部材は、前記フラットケーブル型高周波フィルタによって接続されている、電子機器。 - 前記フラットケーブル型高周波フィルタは、前記複数の実装回路基板のそれぞれに対して所定の空隙を置いて配置されている、請求項17に記載の電子機器。
- 請求項16に記載のフラットケーブル型高周波ダイプレクサと、
複数の実装回路部材と、を備え、
前記複数の実装回路部材は、前記フラットケーブル型高周波ダイプレクサによって接続されている、電子機器。 - 前記フラットケーブル型高周波ダイプレクサは、前記複数の実装回路基板のそれぞれに対して所定の空隙を置いて配置されている、請求項19に記載の電子機器。
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US14/802,059 US9570784B2 (en) | 2013-02-01 | 2015-07-17 | Flat cable high-frequency filter, flat cable high-frequency diplexer, and electronic device |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107710606A (zh) * | 2015-07-22 | 2018-02-16 | 株式会社村田制作所 | Lc滤波器 |
EP3327933A4 (en) * | 2015-07-22 | 2019-03-20 | Murata Manufacturing Co., Ltd. | LC FILTER |
CN107710606B (zh) * | 2015-07-22 | 2021-04-27 | 株式会社村田制作所 | Lc滤波器 |
Also Published As
Publication number | Publication date |
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US20170110777A1 (en) | 2017-04-20 |
JP6137246B2 (ja) | 2017-05-31 |
CN205882136U (zh) | 2017-01-11 |
JP2016007045A (ja) | 2016-01-14 |
JP5800094B2 (ja) | 2015-10-28 |
CN205039787U (zh) | 2016-02-17 |
US9947979B2 (en) | 2018-04-17 |
JPWO2014119362A1 (ja) | 2017-01-26 |
US9570784B2 (en) | 2017-02-14 |
US20150325900A1 (en) | 2015-11-12 |
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