WO2005076404A1 - 平衡型分配器 - Google Patents
平衡型分配器 Download PDFInfo
- Publication number
- WO2005076404A1 WO2005076404A1 PCT/JP2005/000275 JP2005000275W WO2005076404A1 WO 2005076404 A1 WO2005076404 A1 WO 2005076404A1 JP 2005000275 W JP2005000275 W JP 2005000275W WO 2005076404 A1 WO2005076404 A1 WO 2005076404A1
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- WO
- WIPO (PCT)
- Prior art keywords
- balanced
- strip line
- stripline
- electrically connected
- terminal
- Prior art date
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- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 46
- 238000000605 extraction Methods 0.000 description 22
- 239000011229 interlayer Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
-
- 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
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
Definitions
- the present invention relates to a balanced distributor, and more particularly to a balanced distributor used for mobile communication equipment and the like.
- an unbalanced input balanced output distributor (balanced distributor) 1 is a single unbalanced input unbalanced device that distributes an unbalanced signal input from an unbalanced terminal 5 into two. It is obtained by combining a balanced output distributor (commonly known distributor) 2 and two unbalanced balanced transformers (so-called baluns) 3, 4 that convert the two distributed unbalanced signals into balanced signals, respectively. Can be The balanced signals output from the unbalanced balanced transpositions 3 and 4 are output from the first balanced terminals 6a and 6b and the second balanced terminals 7a and 7b, respectively.
- an unbalanced input-balanced output distributor is a single unbalanced-balanced translator (so-called balun) that converts an unbalanced signal into a balanced signal, and the power that is also output. It can be obtained by combining one balanced input balanced output distributor that distributes one balanced signal into two.
- FIG. 14 is an electric circuit diagram more specifically showing the unbalanced input / balanced output distributor (balanced distributor) 1 in the block circuit diagram of FIG. 13 based on Patent Documents 1 and 2.
- Balanced distributor 1 is composed of ten 1Z4 wavelength strip lines 11-20 and one resistor R. It is configured.
- the balanced distributor 1 is configured by combining the distributor 2 and the baluns 3 and 4, which are individual components, there is a problem that the number of components increases. Further, simply integrating the individual components 2-4 into one component complicates the circuit configuration inside the component, as shown in FIG. 14, and increases the manufacturing cost and the insertion loss. However, there was a problem that the size became larger.
- Patent Document 1 JP 2001-94316 A
- Patent Document 2 JP 2001-168607 A
- An object of the present invention is to provide a balanced distributor that has a simple circuit configuration and can be downsized.
- a balanced distributor includes an unbalanced line configured by connecting a first stripline and a second stripline in series, and a first stream of the unbalanced line.
- a first balanced line composed of an unbalanced terminal electrically connected to the first stripline, a third stripline electromagnetically coupled to the first stripline, and a fourth stripline electromagnetically coupled to the second stripline;
- a first balanced terminal having two terminals, one and the other of which are electrically connected to the third stripline and the fourth stripline of the first balanced line, respectively, and a first terminal electromagnetically coupled to the first stripline.
- It has a second balanced line composed of five striplines and a sixth stripline electromagnetically coupled to the second stripline, and two terminals, one of which and the other are the (2)
- the second balanced terminal electrically connected to the fifth stripline and the sixth stripline of the balanced line, and the first balanced terminal connected to the third stripline and the second balanced terminal connected to the fifth stripline.
- a first resistor electrically connected to the balanced terminal, and an electrical connection between the first balanced terminal connected to the fourth stripline and the second balanced terminal connected to the sixth stripline. And a second resistor connected thereto.
- a first strip line having one end and the other end, and a first strip line having one end and the other end, A second strip line having an end electrically connected to the other end of the first strip line; an unbalanced terminal electrically connected to one end of the first strip line; one end and the other end; A third strip line electrically connected to ground; a fourth strip line having one end and the other end; one end electrically connected to ground; and two terminals, one of which.
- the other has a first balanced terminal electrically connected to the other end of the third stripline and the other end of the fourth stripline, respectively, and one end and the other end, and one end is electrically connected to the ground.
- the other end and strip 6 A second balanced terminal electrically connected to the other end of the first strip line, a first resistor electrically connected between the other end of the third strip line and the other end of the fifth strip line, A second resistor electrically connected between the other end of the fourth strip line and the other end of the sixth strip line; one end of the second strip line is an open end; (3)
- the stripline is electromagnetically coupled such that one end and the other end face each other, the first stripline and the fifth stripline are electromagnetically coupled such that one end and the other end face each other, and
- the strip line and the fourth strip line are electromagnetically coupled so that one end and the other end face each other, and the second strip line and the sixth strip line are one end and the other end face each other. Electromagnetically coupled with! /, Characterized by and Turkey.
- first strip line having one end and the other end
- second strip line having one end and the other end, and the other end electrically connected to the other end of the first strip line
- An unbalanced terminal electrically connected to one end of the strip line
- a third strip line having one end and the other end, the other end electrically connected to the Dutch, one end and the other end
- It has a fourth stripline, the other end of which is electrically connected to ground, and two terminals, one and the other of which are electrically connected to one end of the third stripline and one end of the fourth stripline, respectively.
- a fifth balanced line having a first balanced terminal connected thereto, one end and the other end, the other end electrically connected to the ground, the one end and the other end, and the other end electrically connected to the ground.
- Has a sixth stripline connected and two terminals A second balanced terminal one and the other of which is respectively electrically connected to one end and one end of the sixth strip line of the fifth strip line , A first resistor electrically connected between one end of the third strip line and one end of the fifth strip line, and an electrical connection between one end of the fourth strip line and one end of the sixth strip line.
- a second resistor connected to the ground, one end of the second strip line is electrically connected to the ground, and the first strip line and the third strip line are electromagnetically coupled such that one end and the other end face each other.
- the first strip line and the fifth strip line are electromagnetically coupled such that one end and the other end face each other, and the second strip line and the fourth strip line face one end and the other end. And the second strip line and the sixth strip line are electromagnetically coupled such that one end and the other end face each other.
- first, second, third, fourth, fifth, and sixth strip lines are 1Z4 wavelength strip lines.
- the resistance value of the first resistor and the resistance value of the second resistor are respectively the sum of the characteristic impedance value between the balanced lines of the first balanced terminal and the characteristic impedance value between the balanced lines of the second balanced terminal. This is the resistance value of 1Z2.
- an unbalanced signal input from an unbalanced terminal propagates through the first stripline and the second stripline. Then, the first stripline is electromagnetically coupled with the third and fifth striplines, and the second stripline is electromagnetically coupled with the fourth and sixth striplines, so that one unbalanced signal is obtained. It is converted into two balanced signals, and these balanced signals are extracted from the first balanced terminal and the second balanced terminal.
- the balanced distributor according to the present invention provides a stacked body by stacking the first, second, third, fourth, fifth, and sixth strip lines and a ground electrode via a dielectric layer.
- An unbalanced terminal, a first balanced terminal, a second balanced terminal, and a ground terminal, each having two terminals, are provided on the surface of the laminate, and the first stripline and the second stripline are connected in series.
- An unbalanced terminal is electrically connected to the first stripline of the unbalanced line configured as above, and the third stripline electromagnetically coupled to the first stripline and the fourth stripline electromagnetically coupled to the second stripline
- One and the other of the first balanced terminals are electrically connected to the third stripline and the fourth stripline of the first balanced line composed of One of the second balanced terminals is connected to the fifth and sixth striplines of the second balanced line composed of the fifth stripline electromagnetically coupled to the lip line and the sixth stripline electromagnetically coupled to the second stripline.
- a first resistor is electrically connected between the first balanced terminal connected to the third strip line and the second balanced terminal connected to the fifth strip line
- a second resistor is electrically connected between the first balanced terminal connected to the four strip lines and the second balanced terminal connected to the sixth strip line.
- Ground electrodes are arranged in the upper layer, the middle layer, and the lower layer of the laminate in the stacking direction of the dielectric layers, respectively, and a first and a first ground are provided between the upper layer ground electrode and the middle layer ground electrode.
- Third and fifth strip lines may be arranged, and second, fourth and sixth strip lines may be arranged between the ground electrode in the middle layer and the ground electrode in the lower layer, or vice versa.
- the second, fourth and sixth strip lines are arranged between the ground electrode of the middle part and the ground electrode of the middle part, and the first, third and third strip lines are placed between the ground electrode of the middle part and the ground electrode of the lower part. You may place 5 strip lines.
- an external terminal for electrically connecting one of the first resistor and the second resistor is provided on the surface of the laminate, and the first resistor and the second resistor are provided on the surface of the laminate. You can place it.
- FIG. 1 is a circuit diagram showing a first embodiment of a balanced distributor according to the present invention.
- FIG. 2 is a circuit diagram showing a balanced type distributor according to a second embodiment of the present invention.
- FIG. 3 is an exploded perspective view showing a third embodiment of the balanced distributor according to the present invention.
- FIG. 4 is an external perspective view of the balanced distributor shown in FIG.
- FIG. 5 is an exploded perspective view showing a fourth embodiment of the balanced distributor according to the present invention.
- FIG. 6 is an external perspective view of the balanced distributor shown in FIG.
- FIG. 7 is an exploded perspective view showing a fifth embodiment of the balanced distributor according to the present invention.
- FIG. 8 is an external perspective view of the balanced distributor shown in FIG. 7.
- FIG. 9 is an exploded perspective view showing another fifth embodiment of the balanced distributor according to the present invention.
- FIG. 10 is an external perspective view of the balanced distributor shown in FIG.
- FIG. 11 is an exploded perspective view showing a balanced distributor according to a sixth embodiment of the present invention.
- FIG. 12 is an external perspective view of the balanced distributor shown in FIG.
- FIG. 13 is a block circuit diagram of a conventional balanced distributor.
- FIG. 14 is an electric circuit diagram of the balanced distributor shown in FIG.
- the balanced distributor 21 has 1Z4 wavelength striplines 31, 32, 33, 34, 35, 36!
- Each of the strip lines 31, 32, 33, 34, 35, 36 has one end 31a, 32a, 33a, 34a, 35a, 36a and the other end 31b, 32b, 33b, 34b, 35b, 36b! / ⁇ .
- One end 31a of the strip line 31 is electrically connected to the unbalanced terminal 22, and the other end 31b is electrically connected to the other end 32b of the strip line 32.
- One end 32a of the strip line 32 is an open end.
- One end 33a of the strip line 33 is grounded, and the other end 33b is electrically connected to the first balanced terminal 23a.
- One end 34a of the strip line 34 is grounded, and the other end 34b is electrically connected to the first balanced terminal 23b.
- One end 35a of the strip line 35 is grounded, and the other end 35b is electrically connected to the second balanced terminal 24a.
- One end 36a of the strip line 36 is grounded, and the other end 36b is electrically connected to the second balanced terminal 24b.
- each of the strip lines 31 and 33 is arranged so that the other end thereof is opposed to each other, and is electromagnetically coupled to form a coupler.
- one ends of the strip lines 32 and 34 are arranged so that the other ends thereof face each other and electromagnetically coupled to form a coupler.
- striplines 31 and 32 are connected in series to form an unbalanced line
- striplines 33 and 34 form a first balanced line
- striplines 35 and 36 form a second balanced line.
- resistors Rl and R2 are electrically connected between the first balanced terminal 23a and the second balanced terminal 24a and between the first balanced terminal 23b and the second balanced terminal 24b, respectively.
- the resistance values of the resistors R1 and R2 are half of the sum of the characteristic impedance values between the balanced lines of the first balanced terminals 23a and 23b and the balanced lines of the second balanced terminals 24a and 24b, respectively.
- the balanced distributor 21 is an "unbalanced input balanced output distributor" that distributes one unbalanced signal into two balanced signals. That is, the unbalanced signal input from the unbalanced terminal 22 propagates through the strip line 31 and the strip line 32. Then, the strip line 31 is electromagnetically coupled with the strip lines 33 and 35, and the strip line 32 is a strip line.
- one unbalanced signal is converted into two balanced signals, and these balanced signals are extracted from the first balanced terminals 23a and 23b and the second balanced terminals 24a and 24b.
- the conventional balanced distributor 1 shown in Fig. 13 has an overall insertion loss due to the insertion loss of the distributor 2 and the baluns 3 and 4. In contrast, the insertion loss can be reduced. Furthermore, the balanced distributor 21 is composed of six 1Z 4-wavelength strip lines 31-36 and two resistors Rl and R2, which are compared with the conventional balanced distributor 1 shown in FIG. Since it can be configured with a small number of components, miniaturization is possible.
- the balanced distributor 41 is a 1Z4 wavelength stripline 31, 32, 33, 34,
- Each of the strip lines 31, 32, 33, 34, 35, 36 has one end 31a, 32a, 33a, 34a, 35a, 36a and the other end 31b, 32b, 33b, 34b, 35b, 36b! / ⁇ . .
- One end 31a of the strip line 31 is electrically connected to the unbalanced terminal 22, and the other end 31b is electrically connected to the other end 32b of the strip line 32.
- One end 32a of the strip line 32 is grounded.
- the other end 33b of the strip line 33 is grounded, and one end 33a is electrically connected to the first balanced terminal 23a.
- the other end 34b of the strip line 34 is grounded,
- the end 34a is electrically connected to the first balanced terminal 23b.
- the other end 35b of the strip line 35 is grounded, and one end 35a is electrically connected to the second balanced terminal 24a.
- the other end 36b of the strip line 36 is grounded, and one end 36a is electrically connected to the second balanced terminal 24b.
- each of the strip lines 31 and 33 is arranged so that the other end thereof is opposed to each other, and electromagnetically coupled to form a coupler.
- one ends of the strip lines 32 and 34 are arranged so that the other ends thereof face each other and electromagnetically coupled to form a coupler.
- each of the strip lines 31 and 35 is arranged so that the other end thereof faces each other, and is electromagnetically coupled to form a coupler.
- one end of each of the strip lines 32 and 36 is arranged so that the other ends thereof face each other and electromagnetically coupled to each other to form a coupler.
- Striplines 31 and 32 are connected in series to form an unbalanced line, striplines 33 and 34 form a first balanced line, and striplines 35 and 36 form a second balanced line. .
- resistors Rl and R2 are electrically connected between the first balanced terminal 23a and the second balanced terminal 24a and between the first balanced terminal 23b and the second balanced terminal 24b, respectively.
- the resistance values of the resistors R1 and R2 are half of the sum of the characteristic impedance values between the balanced lines of the first balanced terminals 23a and 23b and the balanced lines of the second balanced terminals 24a and 24b, respectively.
- the balanced distributor 41 is an “unbalanced input balanced output distributor” that distributes one unbalanced signal to two balanced signals, and operates in the same manner as the balanced distributor 21 of the first embodiment. It works.
- FIGS. 3 and 4 (Refer to the third embodiment, FIGS. 3 and 4)
- FIG. 3 is an exploded perspective view of a stacked balanced distributor 21A incorporating the balanced distributor 21 shown in FIG.
- the balanced distributor 21A has a dielectric sheet 65 having ground electrodes 51, 52, 53 formed on its surface, a 1Z4 wavelength stripline 31, 32, 33, 34, 35, 36 and a via hole 60 for interlayer connection.
- the dielectric sheet 65 As a material of the dielectric sheet 65, a dielectric ceramic powder is kneaded together with a binder and the like. What was made into the shape of a sheet is used.
- the strip lines 31-36 and the extraction electrodes 54-59 are formed by a method such as a sputtering method, a vapor deposition method, and a printing method, and are made of a material such as Ag, Ag-Pd, or Cu.
- the via hole 60 for interlayer connection is formed by forming a through hole in the dielectric sheet 65 using a laser beam, etc., and filling the through hole with a conductive paste such as Ag, Ag—Pd, Cu, etc. by printing or coating. It is formed by doing.
- the dielectric sheets 65 provided with the ground electrodes 51, 52, and 53 are arranged in an upper layer portion, a middle layer portion, and a lower layer portion. Between the ground electrodes 51 and 52, a dielectric sheet provided with the same spiral strip lines 33 and 35 is disposed with a dielectric sheet provided with the spiral strip line 31 interposed therebetween.
- the dielectric sheets provided with the strip lines 33, 31, 35 are arranged in order from the upper layer.
- the dielectric sheets provided with the strip lines 35, 31, 33 are arranged in order from the upper layer. It can be something.
- a dielectric sheet provided with the same spiral strip lines 34 and 36 is disposed with a dielectric sheet provided with the spiral strip line 32 therebetween.
- the dielectric sheets provided with the strip lines 34, 32, and 36 are also arranged in the order of the upper layer force.
- the dielectric sheets provided with the strip lines 36, 32, and 34 are also arranged in the order of the upper layer force. It may be something.
- a dielectric sheet provided with strip lines 34, 32, 36 is disposed above the dielectric sheet provided with the ground electrode 52, and strip lines 33, 36 are provided below the dielectric sheet provided with the round electrode 52.
- a dielectric sheet provided with 31, 35 may be arranged!
- the ground electrodes 51-53 are formed in a wide area on the surface of the dielectric sheet 65, and a part thereof is exposed at the center of the back side of the sheet 65.
- the strip line 33 is disposed at the center of the dielectric sheet 65, and one end 33a thereof is exposed at the center of the back side of the dielectric sheet 65.
- the other end 33b of the strip line 33 is led out to the right side of the dielectric sheet 65 via a via hole 60 for interlayer connection and a lead electrode 54 formed in a layer one above.
- the strip line 31 is arranged at the center of the dielectric sheet 65, and one end 3 la of the strip line 31 is exposed on the right side of the inner side of the dielectric sheet 65.
- the other end 31b of the strip line 31 is connected to the dielectric via a via hole 60 for layer connection and an extraction electrode 55 formed in the layer above. It is pulled out to the center of the front side of the gate 65.
- the strip line 35 is disposed at the center of the dielectric sheet 65, and one end 35a thereof is exposed at the center of the back side of the dielectric sheet 65.
- the other end 35b of the strip line 35 is drawn out to the left side of the dielectric sheet 65 via the via hole 60 for interlayer connection and the extraction electrode 56 formed in the layer immediately below the other end 35b.
- one end 31a, 33a and the other end 31b, 33b of the strip lines 31, 33 are opposed to each other, and the strip lines 31 and 33 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to constitute a coupler.
- one end 31a, 35a and the other end 31b, 35b of the strip lines 31, 35 are opposed to each other, and the strip lines 31 and 35 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to form a coupler. I have.
- the strip line 34 is disposed at the center of the dielectric sheet 65, and one end 34a thereof is exposed at the center of the back side of the dielectric sheet 65.
- the other end 34b of the strip line 34 is drawn out to the right side of the front side of the dielectric sheet 65 via an interlayer connection via hole 60 and a drawing electrode 57 formed in a layer immediately above.
- the strip line 32 is disposed at the center of the dielectric sheet 65, and one end 32a is an open end.
- the other end 32b of the strip line 32 is drawn out to the center of the near side of the dielectric sheet 65 via a via hole 60 for interlayer connection and a drawing electrode 58 formed in a layer immediately above.
- the strip line 36 is disposed at the center of the dielectric sheet 65, and one end 36a thereof is exposed at the center of the back side of the dielectric sheet 65.
- the other end 36b of the strip line 36 is protruded to the left side of the front side of the dielectric sheet 65 via the via hole 60 for interlayer connection and the extraction electrode 59 formed in the layer below it.
- one end 32a, 34a and the other end 32b, 34b of the strip lines 32, 34 are opposed to each other, and the strip lines 32, 34 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween, thereby constituting a coupler.
- one end 32a, 36a of the strip lines 32, 36 and the other end 32b, 36b are opposed to each other, and the strip lines 32, 36 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to form a coupler. I have.
- the dielectric sheets 65 are stacked and fired integrally to form a laminate 71 as shown in FIG.
- the first balanced terminal 23b is formed on the right side on the front side of the laminated body 71
- the second balanced terminal 24b is formed on the left side
- the relay terminal 25 is formed in the center
- the unbalanced terminal 2 is formed on the right side on the back side. 2.
- the ground terminal G is formed in the center.
- the first balanced terminal 23a is formed on the right side surface of the laminate 71
- the second balanced terminal 24a is formed on the left side surface.
- Each terminal is formed so as to extend from the side surface to the upper and lower surfaces.
- the first balanced terminals 23a and 23b are electrically connected to the extraction electrodes 54 and 57, respectively.
- the unbalanced terminal 22 is electrically connected to one end 31a of the strip line 31, and the relay terminal 25 is electrically connected to extraction electrodes 55 and 58.
- the second balanced terminals 24a and 24b are electrically connected to the extraction electrodes 56 and 59, respectively.
- the ground terminal G is electrically connected to one of the ground electrodes 51-53 and one end 33a, 35a, 34a, 36a of the strip lines 33, 35, 34, 36.
- resistors Rl and R2 are formed on the upper surface of the laminate 71 by printing a carbon paste or the like.
- the resistor R1 electrically connects between the first balanced terminal 23a and the second balanced terminal 24a
- the resistor R2 electrically connects between the first balanced terminal 23b and the second balanced terminal 24b.
- the resistors Rl and R2 may be formed on the bottom surface of the multilayer body 71. Further, the resistors Rl and R2 may be chip resistors arranged on the surface of the multilayer body instead of the printed resistors. Further, the resistors Rl and R2 may be externally attached to a printed circuit board on which the balanced distributor 21A is mounted, and connected to each terminal via wiring.
- the laminated balanced distributor 21A having the above-described structure can be easily formed between the strip lines 31-33, 31-35, and 32-34 by changing the thickness of the dielectric sheet 65 or the like. And the electromagnetic coupling value between 32 and 36 can be adjusted. Also, since the strip lines 31-36 and the like are formed by the same manufacturing method and at the same time, variations in electromagnetic coupling characteristics in manufacturing can be suppressed.
- strip lines 33, 31, and 35 are arranged above ground electrode 52, and the lower line of ground electrode 52 (this strip lines 34, 32, and 36 are placed!)
- the strip lines 33, 31, 35 and the strip lines 34, 32, 36 are shielded by a ground electrode 52. Therefore, since there is no electromagnetic coupling between the strip lines 33, 31, 35 and the strip lines 34, 32, 36, wideband and low-loss characteristics can be obtained.
- Fig. 5 is a schematic diagram of the stacked balanced distributor 21B incorporating the balanced distributor 21 shown in Fig. 1. It is an exploded perspective view.
- a dielectric sheet 65 having ground electrodes 51 and 53 formed on its surface, quarter-wave strip lines 31, 32, 33, 34, 35 and 36, and via holes 60 for interlayer connection were formed.
- An electrode is formed on the dielectric sheet 65.
- the dielectric sheets 65 provided with the ground electrodes 51 and 53, respectively, are arranged in an upper layer portion and a lower layer portion.
- Spiral strip lines 33 and 34 and spiral strip lines 35 and 36 were also provided between the ground electrodes 51 and 53 with a dielectric sheet provided with spiral strip lines 31 and 32 interposed therebetween.
- a dielectric sheet is disposed.
- the dielectric sheets provided with the strip lines 33 and 34, 31 and 32, and 35 and 36 are also arranged in order of the upper layer force.
- Strip lines 35 and 36, 31 and 32, 33 and 34 The dielectric sheet provided with is arranged in order of the upper layer force.
- Strip lines 33 and 34 are arranged on the right and left halves of the same dielectric sheet 65, respectively.
- One ends 33a and 34a of the strip lines 33 and 34 are connected to each other and are exposed at the center of the back side of the dielectric sheet 65.
- the other end 33b of the strip line 33 is led out to the right side of the dielectric sheet 65 via a via hole 60 for interlayer connection and a lead-out electrode 54 formed in a layer one above.
- the other end 34b of the strip line 34 is drawn out to the right side of the front side of the dielectric sheet 65 via the via hole 60 for connection between layers and the drawing electrode 57 formed in the layer immediately above.
- Strip lines 31 and 32 are arranged on the right and left halves of the same dielectric sheet 65, respectively. One end 31a of the strip line 31 is exposed on the right side of the back side of the dielectric sheet 65. The other end 31b of the strip line 31 is electrically connected to the other end 32b of the strip line 32 via a via hole 60 for interlayer connection and a relay electrode 75 formed in a layer immediately above. One end 32a of the strip line 32 is an open end.
- the strip lines 31 and 33 are electromagnetically coupled with one end 31a, 33a and the other end 31b, 33b facing each other, and the strip lines 31 and 33 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween.
- the strip lines 32 and 34 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to form a coupler. I have.
- Strip lines 35 and 36 are arranged on the right and left halves of the same dielectric sheet 65, respectively.
- One ends 35a, 36a of the strip lines 35, 36 are connected to each other and are exposed at the center of the back side of the dielectric sheet 65.
- the other end 35b of the strip line 35 is led out to the left side of the dielectric sheet 65 via the via hole 60 for interlayer connection and the lead electrode 56 formed in the layer below.
- the other end 36b of the strip line 36 is pulled out to the left side of the front side of the dielectric sheet 65 via the via hole 60 for connection between layers and the extraction electrode 59 formed in the layer below it. .
- one end 31a, 35a and the other end 31b, 35b of the strip lines 31, 35 are opposed to each other, and the strip lines 31 and 35 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to constitute a coupler.
- one end 32a, 36a of the strip lines 32, 36 and the other end 32b, 36b are opposed to each other, and the strip lines 32, 36 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to form a coupler. I have.
- Each of the dielectric sheets 65 is stacked and integrally fired to form a laminate 71 as shown in FIG.
- the first balanced terminal 23b is formed on the right side on the front side of the laminated body 71
- the second balanced terminal 24b is formed on the left side
- the unbalanced terminal 22 is on the right side on the far side
- the ground terminal G is in the center. Is formed.
- the first balanced terminal 23a is formed on the right side surface of the multilayer body 71
- the second balanced terminal 24a is formed on the left side surface.
- Each terminal is formed so as to extend from the side surface to the upper and lower surfaces.
- the first balanced terminals 23a and 23b are electrically connected to the extraction electrodes 54 and 57, respectively.
- the unbalanced terminal 22 is electrically connected to one end 31a of the strip line 31.
- the second balanced terminals 24a, 24b are electrically connected to the extraction electrodes 56, 59, respectively.
- the ground terminal G is connected to a part of the ground electrodes 51, 53 and one ends 33a, 34a, 35a, 36a of the strip lines 33, 34, 35, 36.
- resistors Rl and R2 are formed on the upper surface of the laminate 71 by printing a carbon paste or the like.
- the resistor R1 electrically connects between the first balanced terminal 23a and the second balanced terminal 24a.
- a resistor R2 electrically connects the first balanced terminal 23b and the second balanced terminal 24b.
- the resistors Rl and R2 may be formed on the bottom surface of the multilayer body 71. Further, the resistors Rl and R2 may be chip resistors arranged on the surface of the multilayer body instead of the printed resistors. Further, the resistors Rl and R2 may be externally attached to a printed circuit board on which the balanced distributor 21A is mounted, and connected to each terminal via wiring.
- the stacked balanced distributor 21 B having the above-described structure can be easily formed between the strip lines 31-33, 31-35, and 32-34 by changing the thickness of the dielectric sheet 65. And the electromagnetic coupling value between 32 and 36 can be adjusted. Also, since the strip lines 31-36 and the like are formed by the same manufacturing method and at the same time, variations in electromagnetic coupling characteristics in manufacturing can be suppressed.
- strip lines 31 and 32, 33 and 34, and 35 and 36 are placed on the same sheet 65, respectively, between strip lines 31 and 32, between 33 and 34, and between 35 and 36. Electromagnetic coupling occurs between them. Therefore, narrow band and low loss characteristics can be obtained.
- the resistors Rl and R2 are used with the resistors R1 and R2 externally attached to the printed circuit board on which the balanced distributors 21A and 21B are mounted. There are cases. In this case, the signal phase is delayed by the wiring pattern on the printed circuit board connecting the strip lines 33, 34, 35, 36 and the resistors Rl, R2, and the first balanced terminals 23a, 23b and the second balanced terminals Isolation between 24a and 24b may be reduced
- the stacked balanced distributor according to the fifth embodiment solves this problem.
- the stacked balanced distributor 21C shown in FIGS. 7 and 8 is an improvement of the balanced distributor 21A of the third embodiment. Further, the stacked balanced distributor 21D shown in FIGS. 9 and 10 is an improved version of the balanced distributor 21B of the fourth embodiment.
- the laminated balanced distributors 21 C and 21 D are formed in a state where the resistance connection terminal extraction electrode 80 is electrically connected to the extraction electrode 54 on the dielectric sheet 65 on which the extraction electrode 54 is formed.
- the resistance connection terminal 26 electrically connected to the resistance connection terminal lead electrode 80 is formed on the left side of the rear side surface of the multilayer body 71. [0062]
- the resistance connection terminal 26 is for connecting the resistance Rl, and is arranged between the unbalanced terminal 22 and the second balanced terminal 24a.
- the lead electrode 80 of the resistor connection terminal is connected to the lead electrode of the strip line 33 connected to the first balanced terminal 23a which is not adjacent to the second balanced terminals 24a, 24b among the first balanced terminals 23a, 23b.
- the resistance connection terminal extraction electrode 80 electrically connects the extraction electrode 56 and the resistance connection terminal 26.
- the resistance connection terminal 26 and the resistance connection terminal lead-out electrode 80 the delay of the signal phase due to the wiring pattern on the printed circuit board can be minimized, and the first balanced terminal 23a, It is possible to suppress a decrease in isolation between the second balanced terminal 24a and the second balanced terminal 24b.
- the resistor connection terminal 26 is disposed between the unbalanced terminal 22 and the second balanced terminal 24a, but the resistor connection terminal 26 is disposed between the unbalanced terminal 22 and the first balanced terminal 23a.
- the connection terminal 26 may be provided.
- one of the extraction electrodes 57 of the strip line 34 or the extraction electrode 59 of the strip line 36 is electrically connected to the resistance connection terminal 26 via the resistance connection terminal extraction electrode 80. .
- the resistors R1 and R2 are printed on the surface of the laminate 71 as shown in the third and fourth embodiments, or mounted on the laminate 71 as chip components. By doing so, it is possible to suppress a decrease in isolation between the first balanced terminals 23a and 23b and the second balanced terminals 24a and 24b.
- FIG. 11 is an exploded perspective view of a stacked balanced distributor 41A incorporating the balanced distributor 41 shown in FIG.
- the balanced distributor 41A includes a dielectric sheet 65 having ground electrodes 51, 52, 53 formed on its surface, a 1Z4 wavelength strip line 31, 32, 33, 34, 35, 36 and a via hole 60 for layer connection.
- the ground electrodes 51-53 are formed in a wide area on the surface of the dielectric sheet 65, and a part thereof is It is exposed in the center of the back side of the sheet 65.
- the strip line 33 is disposed at the center of the dielectric sheet 65, and one end 33a is exposed on the right side of the dielectric sheet 65.
- the other end 33b of the strip line 33 is led out to the center of the back side of the dielectric sheet 65 via a via hole 60 for interlayer connection and a lead electrode 54 formed in a layer one above.
- the strip line 31 is arranged at the center of the dielectric sheet 65, and one end 3 la of the strip line 31 is exposed on the right side of the inner side of the dielectric sheet 65.
- the other end 31b of the strip line 31 is led out to the center of the side on the near side of the dielectric sheet 65 via the via hole 60 for layer connection and the lead electrode 55 formed on the layer immediately above.
- the strip line 35 is disposed at the center of the dielectric sheet 65, and one end 35a thereof is exposed on the left side of the dielectric sheet 65.
- the other end 35b of the strip line 35 is led to the center of the back side of the dielectric sheet 65 via the via hole 60 for interlayer connection and the lead electrode 56 formed in the layer below.
- one end 31a, 33a of the strip lines 31, 33 and the other end 31b, 33b face each other, and the strip lines 31 and 33 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to constitute a coupler.
- one end 31a, 35a and the other end 31b, 35b of the strip lines 31, 35 are opposed to each other, and the strip lines 31 and 35 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to form a coupler. I have.
- the strip line 34 is disposed at the center of the dielectric sheet 65, and one end 34a thereof is exposed on the right side of the front side of the dielectric sheet 65.
- the other end 34b of the strip line 34 is led out to the center of the back side of the dielectric sheet 65 via the via hole 60 for interlayer connection and the lead electrode 57 formed in the layer immediately above.
- the strip line 32 is disposed at the center of the dielectric sheet 65, and one end 32a is an open end.
- the other end 32b of the strip line 32 is drawn out to the center of the near side of the dielectric sheet 65 via a via hole 60 for interlayer connection and a drawing electrode 58 formed in a layer immediately above.
- the strip line 36 is disposed at the center of the dielectric sheet 65, and one end 36a thereof is exposed on the left side of the front side of the dielectric sheet 65.
- the other end 36b of the strip line 36 is led out to the center of the back side of the dielectric sheet 65 via the via hole 60 for interlayer connection and the lead electrode 59 formed in the layer below.
- one ends 32a and 34a of the strip lines 32 and 34 and the other ends 32b and 34b are connected.
- the strip lines 32 and 34 are electromagnetically coupled to each other with the dielectric sheet 65 interposed therebetween to form a coupler.
- one end 32a, 36a of the strip lines 32, 36 and the other end 32b, 36b are opposed to each other, and the strip lines 32, 36 are electromagnetically coupled with the dielectric sheet 65 interposed therebetween to form a coupler. I have.
- Each of the dielectric sheets 65 is stacked and integrally fired to form a laminate 71 as shown in FIG.
- the first balanced terminal 23b is formed on the right side on the front side of the laminated body 71
- the second balanced terminal 24b is formed on the left side
- the relay terminal 25 is formed on the center
- the unbalanced terminal 22 is formed on the right side on the back side.
- a ground terminal G is formed at the center.
- the first balanced terminal 23a is formed on the right side surface of the laminate 71
- the second balanced terminal 24a is formed on the left side surface.
- Each terminal is formed so as to extend from the side surface to the upper and lower surfaces.
- the first balanced terminals 23a and 23b are electrically connected to one ends 33a and 34a of the strip lines 33 and 34, respectively.
- the unbalanced terminal 22 is electrically connected to one end 31a of the strip line 31, and the relay terminal 25 is electrically connected to extraction electrodes 55 and 58.
- the second balanced terminals 24a, 24b are electrically connected to one ends 35a, 36a of the strip lines 35, 36, respectively.
- the ground terminal G is electrically connected to a part of the ground electrodes 51-53 and the extraction electrodes 54, 56, 57, 59.
- resistors Rl and R2 are formed on the upper surface of the laminate 71 by printing a carbon paste or the like.
- the resistor R1 electrically connects between the first balanced terminal 23a and the second balanced terminal 24a
- the resistor R2 electrically connects between the first balanced terminal 23b and the second balanced terminal 24b.
- the resistors Rl and R2 may be formed on the bottom surface of the multilayer body 71. Further, the resistors Rl and R2 may be chip resistors arranged on the surface of the multilayer body instead of the printed resistors. Further, the resistors Rl and R2 may be externally attached to a printed circuit board on which the balanced distributor 41A is mounted, and connected to each terminal via wiring.
- the stacked balanced distributor 41A having the above configuration has the same functions and effects as those of the third embodiment.
- striplines 31-36 is arbitrary, Or a spiral or meandering shape. Also, the strip lines 31-36 do not necessarily need to be set to a length of 1Z4 wavelength or less.
- the dielectric sheets on which the strip lines and the like are formed are stacked and then integrally fired, but the invention is not necessarily limited to this.
- the sheet may be used in advance.
- a stacked balanced distributor may be manufactured by the manufacturing method described below. After a paste-like dielectric material is applied by printing or the like to form a dielectric layer, a paste-like conductive material is applied to the surface of the dielectric layer to form a strip line or electrode of any shape. To form Next, a paste-like dielectric material is applied over the strip line or the like. In this way, a balanced distributor having a laminated structure can be obtained by successively coating.
- the present invention is useful for a balanced distributor such as a mobile communication device, and is particularly excellent in that the circuit configuration is simple and the size can be reduced. .
Landscapes
- Non-Reversible Transmitting Devices (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/570,906 US7468640B2 (en) | 2004-02-06 | 2005-01-13 | Balanced splitter |
JP2005517635A JP4079173B2 (ja) | 2004-02-06 | 2005-01-13 | 平衡型分配器 |
Applications Claiming Priority (2)
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JP2004031390 | 2004-02-06 | ||
JP2004-031390 | 2004-02-06 |
Publications (1)
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WO2005076404A1 true WO2005076404A1 (ja) | 2005-08-18 |
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PCT/JP2005/000275 WO2005076404A1 (ja) | 2004-02-06 | 2005-01-13 | 平衡型分配器 |
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US (1) | US7468640B2 (ja) |
JP (1) | JP4079173B2 (ja) |
CN (1) | CN100466373C (ja) |
WO (1) | WO2005076404A1 (ja) |
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WO2018198603A1 (ja) * | 2017-04-26 | 2018-11-01 | 株式会社村田製作所 | 積層バラン |
JPWO2019021427A1 (ja) * | 2017-07-27 | 2019-11-14 | 三菱電機株式会社 | 同相抑制回路 |
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US7468640B2 (en) | 2008-12-23 |
JPWO2005076404A1 (ja) | 2008-01-10 |
CN100466373C (zh) | 2009-03-04 |
US20080266020A1 (en) | 2008-10-30 |
JP4079173B2 (ja) | 2008-04-23 |
CN1842937A (zh) | 2006-10-04 |
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