WO2006022104A1 - 伝送線路接続構造および送受信装置 - Google Patents
伝送線路接続構造および送受信装置 Download PDFInfo
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- WO2006022104A1 WO2006022104A1 PCT/JP2005/013555 JP2005013555W WO2006022104A1 WO 2006022104 A1 WO2006022104 A1 WO 2006022104A1 JP 2005013555 W JP2005013555 W JP 2005013555W WO 2006022104 A1 WO2006022104 A1 WO 2006022104A1
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- slot
- stub
- gap
- resonator
- sided
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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
- H01P1/2016—Slot line filters; Fin line filters
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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
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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
- H05K1/14—Structural association of two or more printed circuits
- H05K1/142—Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
-
- 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
- H05K1/0239—Signal transmission by AC coupling
Definitions
- the present invention relates to a transmission line connection structure that transmits a high-frequency signal such as a microwave or a millimeter wave, and a transmission / reception device configured using the transmission line connection structure.
- a slot line is formed by forming slots at a predetermined interval with respect to a surface electrode formed on the surface of a dielectric substrate.
- Multiple connections are known (see, for example, Patent Document 1).
- the surface electrodes of the two slot lines are arranged in a state of being opposed to each other with a gap of a certain interval, and each surface electrode has a substantially rectangular notch with one end on the gap side opened.
- Each is provided with a powerful slot resonator that is open at one end.
- a slot line is connected to each slot resonator, and the two slot resonators are coupled to each other so that a high-frequency signal can be propagated between the two slot lines.
- a transmission / reception device such as a communication device using such a transmission line connection structure is also known (see, for example, Patent Document 2).
- Patent Document 1 Japanese Patent Laid-Open No. 2001-308601
- Patent Document 2 Japanese Patent Laid-Open No. 2003-101301
- the resonance frequency of the slot resonator is the contact between the surface electrode and the package. Susceptible to connection status. As a result, there is a problem that the connection characteristics of the two slot lines become unstable.
- the resonance frequency of the slot resonator also changes depending on the distance from the slot resonator to the package. For this reason, in order to keep the connection characteristics between the slot lines constant, it is necessary to improve the dimensional accuracy of parts such as the dielectric substrate, surface electrode, and package and the mounting accuracy when the dielectric substrate is mounted in the package. is there. As a result, there is also a problem that the manufacturing cost for configuring a module such as a communication device increases.
- connection structure between the package and the surface electrode is designed for each package size. There is a need. For this reason, there is also a problem that design freedom is low.
- the present invention has been made in view of the above-described problems of the prior art, and suppresses the leakage current from propagating through the gap between the electrodes of the transmission line, stabilizes the connection characteristics between the transmission lines, and manufactures them.
- An object of the present invention is to provide a transmission line connection structure and a transmission / reception device that can reduce costs and improve design flexibility.
- the present invention provides a dielectric substrate, a single-sided electrode formed on one side of the dielectric substrate, and slots with predetermined intervals formed on the single-sided electrode.
- the single-side electrodes of the plurality of transmission lines are provided apart from each other with a gap therebetween, and the plurality of single-side electrodes Each provided with a single-ended open resonator connected to each transmission line and having an open gap, and at least one single-sided electrode of the plurality of single-sided electrodes includes the plurality of single-sided electrodes.
- the length of the stub is set to a value of about g_oddZ4.
- Set the resonator and stub The feature is that the length dimension between them is set to a value sufficiently smaller than ⁇ g_oddZ2.
- a plurality of single-sided electrodes separated by a gap are provided with resonators, respectively.
- a transmission line is connected to each resonator.
- a plurality of transmission lines can be connected by coupling a plurality of resonators to each other, and a high-frequency signal can be propagated between these transmission lines.
- the resonator is open on the gap side, high-frequency signals tend to leak into the gap between the single-sided electrodes through the open end of the resonator.
- at least one single-sided electrode of the plurality of single-sided electrodes is provided with a stub, the leakage of high-frequency signals through the gap can be suppressed using the stub.
- the resonance frequency of the resonator in which the actual current due to the high-frequency signal does not flow through the short-circuit end can be stabilized.
- the connection state of the transmission line can be stabilized, and the manufacturing cost can be reduced and the degree of design freedom can be improved without having to increase the dimensional accuracy and mounting accuracy of the dielectric substrate, single-sided electrode and the like.
- the length dimension of the stub is set to a value of about 1Z4 of the wavelength ⁇ g_odd of the odd-mode high-frequency signal. For this reason, even when an odd-mode high-frequency signal leaks through the gap, the branch position (base side of the stub) between the gap and the stub can be a virtual open end for the high-frequency signal. As a result, the reflection characteristics for the leaked high-frequency signal are improved, so that the leaked high-frequency signal can be reliably blocked by the stub, and the stability of the resonance frequency of the resonator can be further enhanced. As a result, even when relatively large variations occur in various dimensions such as the dielectric substrate, a desired pass bandwidth can be secured between the two transmission lines, and the connection loss between the two transmission lines can be reduced. It can be reduced.
- the length dimension between the resonator and the stub is set to a value sufficiently smaller than 1Z2 of the wavelength ⁇ g_odd of the odd-mode high-frequency signal. Therefore, when two resonators resonate in an odd mode in which electric fields in opposite directions are formed, the length of the resonator, the length between the resonator and the stub, and the length of the stub The two resonators resonate at a resonance frequency where the sum of and becomes a value of about ⁇ g_oddZ2.
- the length dimension of the resonator extending along the propagation direction of the high-frequency signal is equal to the even mode. It is appropriate to set a value of about 1Z4 of the wavelength ⁇ g_even of the resonance frequency. Also, When the two resonators resonate in the even mode, the high frequency signal does not leak into the gap. For this reason, the resonance frequency of the even mode is almost constant regardless of the length dimension between the resonator and the stub.
- the resonant frequency of the odd mode varies depending on the length dimension between the resonator and the stub and the length dimension of the stub. Therefore, the odd-mode resonance frequency can be set by the length dimension between the resonator and the stub. As a result, it is possible to configure a two-stage band-pass filter using the coupling between the even mode and the odd mode, and to set the resonant frequency of the odd mode independently of the resonant frequency of the even mode. This can improve the design.
- the length dimension between the resonator and the stub is set to a value sufficiently smaller than g_oddZ2. For this reason, the odd-mode resonance frequency can be set lower than the even-mode resonance frequency, and a passband can be provided on the lower side of the even-mode resonance frequency. Furthermore, since the length dimension between the resonator and the stub is set to a value sufficiently smaller than g_oddZ2, the resonator and the stub can be placed close to each other, and the transmission line connection structure can be miniaturized. Can do.
- the dielectric substrate, the double-sided electrodes formed on both surfaces of the dielectric substrate, and the double-sided electrodes formed on the double-sided electrodes and facing each other across the dielectric substrate are provided.
- the double-sided electrodes of the plurality of transmission lines are provided apart from each other with a gap therebetween, and the plurality of double-sided electrodes Are provided in a state where they can be coupled to each other, and are connected to each transmission line and open on the gap side, and at least one of the plurality of double-sided electrodes is provided with the plurality of double-sided electrodes.
- a stub that suppresses signal leakage through the gap between the electrodes is provided, and when the wavelength of the odd-mode high-frequency signal propagating through the transmission line is g_odd, the length dimension of the stub is set to a value of about g_oddZ4. And the resonator The length dimension between the stubs may be set to a value sufficiently smaller than g_oddZ2! /.
- the difference is that the single-sided electrode is provided on one side of the dielectric substrate as described above, but the double-sided electrode is provided on both sides of the dielectric substrate.
- the point that slots, resonators, and stubs are provided on the double-sided electrodes is the same as that described above.
- the length of the stub The method is also set to a value of about ⁇ g_oddZ4 and the length dimension between the resonator and the stub is set to a value sufficiently smaller than ⁇ g_odd / 2, which is the same as the above-described configuration. Therefore, when the double-sided electrodes are provided on both sides of the dielectric substrate, as described above, the same effects as when the single-sided electrodes are provided on one side of the dielectric substrate are exhibited.
- a transmission line is constituted by a dielectric substrate, a single-sided electrode formed on one side of the dielectric substrate, and slots with a predetermined interval formed on the single-sided electrode. Then, in a transmission line connection structure for connecting a plurality of the transmission lines, the single-side electrodes of the plurality of transmission lines are provided apart from each other with a gap therebetween, and the plurality of single-side electrodes are provided with the transmission lines.
- One-side open resonators that are connected to the transmission line and open on the gap side are provided in a state where they can be coupled to each other, and at least one single-sided electrode of the plurality of single-sided electrodes is inserted through a gap between the plurality of single-sided electrodes.
- a stub that suppresses leakage of the transmitted signal, and when the wavelength of the odd-mode high-frequency signal propagating through the transmission line is ⁇ g_odd, the length dimension of the stub is set to a value of about ⁇ g_oddZ4, The length dimension between the resonator and the stub is ⁇ g_o d
- a configuration in which the value is set to about d / 2 may be used.
- a stub is provided on at least one single-sided electrode among the plurality of single-sided electrodes. For this reason, leakage of the high frequency signal through the gap can be suppressed using the stub.
- the stub length dimension is set to a value of about g_oddZ4. For this reason, even when an odd-mode high-frequency signal leaks through the gap, the branch position (base end side of the stub) between the gap and the stub can be made a virtual open end for the high-frequency signal. This improves the reflection characteristics of the leaked high-frequency signal, so that the leaked high-frequency signal can be reliably blocked with a stub, and the stability of the resonance frequency of the resonator can be further enhanced. As a result, it is possible to secure a desired pass bandwidth between the two transmission lines and reduce the connection loss between the two transmission lines even when there are relatively large variations in various dimensions such as the dielectric substrate. can do.
- the length dimension between the resonator and the stub is set to a value of about 1Z2 of the wavelength ⁇ g_odd of the odd-mode high-frequency signal. For this reason, when the two resonators resonate in an odd mode in which electric fields in opposite directions are formed, the length of the resonator, the length between the resonator and the stub, and the length of the stub are determined. The total value is the same as the wavelength ⁇ g_odd. The two resonators resonate at the oscillation frequency.
- the length dimension of the resonator extending along the propagation direction of the high-frequency signal is equal to the even mode. It is appropriate to set a value of about 1Z4 of the wavelength ⁇ g_even of the resonance frequency. Also, when the two resonators resonate in the even mode, no high-frequency signal leaks into the gap, so the even-mode resonance frequency is almost constant regardless of the length dimension between the resonator and the stub. Become. On the other hand, the resonant frequency of the odd mode varies depending on the length dimension between the resonator and the stub and the length dimension of the stub.
- the resonant frequency of the odd mode can be set by the length dimension between the resonator and the stub, etc.
- a two-stage bandpass filter is utilized by utilizing the coupling between the even mode and the odd mode.
- the odd-mode resonance frequency can be set independently of the even-mode resonance frequency, and the design of the connection structure can be improved.
- the odd-mode resonance frequency can be set higher than the even-mode resonance frequency.
- a pass band can be provided on the high frequency side with respect to the resonance frequency.
- the dielectric substrate, the double-sided electrodes formed on both surfaces of the dielectric substrate, and the double-sided electrodes formed on the double-sided electrodes and facing each other across the dielectric substrate are provided.
- the double-sided electrodes of the plurality of transmission lines are provided apart from each other with a gap therebetween, and the plurality of double-sided electrodes Are provided in a state where they can be coupled to each other, and are connected to each transmission line and open on the gap side, and at least one of the plurality of double-sided electrodes is provided with the plurality of double-sided electrodes.
- a stub that suppresses signal leakage through the gap between the electrodes is provided, and when the wavelength of the odd-mode high-frequency signal propagating through the transmission line is g_odd, the length dimension of the stub is set to a value of about g_oddZ4. And the resonator The length dimension between the stub and the stub may be set to a value of about ⁇ g_oddZ2.
- a transmission / reception device such as a communication device or a radar device may be configured using the transmission line connection structure of the present invention.
- FIG. 1 is a perspective view showing a transmission line connection structure according to a first embodiment.
- FIG. 2 is an enlarged plan view showing the transmission line connection structure in FIG.
- FIG. 3 is a plan view showing a state in which the slot resonator in FIG. 1 resonates in an even mode.
- FIG. 4 is a plan view showing a state in which the slot resonator in FIG. 1 resonates in an odd mode.
- FIG. 5 is a characteristic diagram showing the frequency characteristics of the reflection coefficient and transmission coefficient of the transmission line connection structure in FIG.
- Fig. 6 is a characteristic diagram showing the result of simulating the frequency characteristics of reflection loss of the transmission line connection structure in Fig. 1.
- FIG. 7 is a characteristic diagram showing the result of simulating the frequency characteristics of reflection loss in the transmission line connection structure according to the comparative example.
- FIG. 8 is a characteristic diagram showing the results of actual measurement of the frequency characteristics of reflection loss of the transmission line connection structure in FIG.
- FIG. 9 is a plan view showing a state in which the slot stub of the transmission line connection structure according to the first embodiment is arranged in the vicinity of the slot resonator.
- FIG. 10 is a plan view showing a state in which the slot stub of the transmission line connection structure according to the first embodiment is arranged farther from the slot resonator than FIG.
- FIG. 11 shows the resonance frequency with respect to the distance dimension between the slot stub and the slot resonator.
- FIG. 12 is an enlarged plan view showing a transmission line connection structure of a first modification.
- FIG. 13 is an enlarged plan view showing a transmission line connection structure of a second modified example.
- FIG. 14 is an enlarged plan view showing a transmission line connection structure of a third modified example.
- FIG. 15 is an enlarged plan view showing a transmission line connection structure of a fourth modified example.
- FIG. 16 is an enlarged plan view showing a transmission line connection structure of a fifth modified example.
- FIG. 17 is an enlarged plan view showing a transmission line connection structure of a sixth modified example.
- FIG. 18 is an enlarged plan view showing a transmission line connection structure of a seventh modified example.
- FIG. 19 is a perspective view showing a transmission line connection structure according to a second embodiment.
- FIG. 20 is an enlarged plan view showing the transmission line connection structure in FIG.
- FIG. 21 is an exploded perspective view showing a communication apparatus according to a third embodiment.
- FIG. 22 is a block diagram showing the communication device in FIG.
- FIGS. 1 to 4 show a transmission line connection structure according to the first embodiment.
- the slot line 1 indicates a slot line as a transmission line.
- the slot line 1 is constituted by an dielectric substrate 2, a surface electrode 3 and a slot 4.
- the dielectric substrate 2 is formed into a flat plate shape having a relative dielectric constant ⁇ r by using a resin material, a ceramic material, or a composite material obtained by mixing and sintering them, and has a surface 2A, It has a back side 2B.
- a surface electrode 3 (single-sided electrode) formed in a thin film shape using, for example, a conductive metal material is provided on the surface 2A of the dielectric substrate 2.
- the surface electrode 3 is formed with a slot 4 having a certain width and opening in a band shape (groove shape).
- the slot 4 has a transmission direction of a high-frequency signal such as a microwave or a millimeter wave (in FIG. 1). It extends along the direction of arrow A).
- the two slot lines 1 are arranged, for example, in a straight line along the transmission direction of the high-frequency signal. At this time, the dielectric substrates 2 of the two slot lines 1 are arranged apart from each other. Further, at the position where the two slot lines 1 face each other, the edge 3A of the surface electrode 3 is arranged, for example, farther from the end face of the dielectric substrate 2 toward the center side (inner side). Therefore, the surface 2A of the dielectric substrate 2 is exposed at a portion of the dielectric substrate 2 that protrudes from the edge 3A of the surface electrode 3 toward the opposite dielectric substrate 2.
- Reference numeral 5 denotes a gap formed between the two surface electrodes 3 constituting the two slot lines 1.
- the gap 5 is formed between the edges 3A of the two surface electrodes 3 with a constant gap G, and the two surface electrodes 3 are opposed to each other in a spaced state. Thus, the gap 5 is sandwiched between the two surface electrodes 3.
- Reference numeral 6 denotes one-end open slot resonators provided on the two surface electrodes 3, respectively.
- Each slot resonator 6 is formed by a substantially rectangular notch continuous to the slot 4, and is connected to the slot line 1.
- the resonance frequency of the slot resonator 6 has a value corresponding to the wavelength ⁇ g_even.
- One end of the slot resonator 6 in the length direction is located on the end side (near the end 3A) of the surface electrode 3 and is open toward the gap 5. .
- the other end in the length direction of the slot resonator 6 extends toward the center side of the surface electrode 3, and the slot line 1 is connected to the central portion in the width direction.
- the two slot resonators 6 face each other with the gap 5 therebetween, and are arranged close to each other so that they can be directly electromagnetically coupled.
- a matching portion 7 in which the slot width is expanded stepwise.
- the matching unit 7 improves the impedance matching between the slot resonator 6 and the slot line 1 and optimizes the amount of coupling between them.
- Reference numeral 8 denotes a slot stub formed on the surface electrode 3.
- the slot stub 8 is formed by a slot extending from the gap 5 toward the center of the surface electrode 3, and is branched from the gap 5 to form a substantially rectangular band shape.
- the slot stub 8 is provided on each of the two surface electrodes 3 with the gap 5 interposed therebetween, and is provided on both sides in the extending direction of the gap 5 with the slot resonator 6 interposed therebetween.
- a total of four slot stubs 8 are provided, two for each surface electrode 3.
- the slot stub 8 has a virtual open end with respect to the odd-mode high-frequency signal in the middle portion of the gap 5 positioned on the base end side.
- the slot stub 8 has a distance dimension Ds between the slot resonator 6 and a value ⁇ g_odd that is sufficiently smaller than 1Z2 with respect to the wavelength ⁇ g_odd of the odd mode (Ds ⁇ e g_oddZ2 ) Or almost the same value as 1Z2 (Ds g_oddZ2).
- the length dimension (distance dimension Ds) of the gap 5 located between the slot stub 8 and the slot resonator 6 is equal to the pass frequency band of the two-stage BPF consisting of the two slot resonators 6 even mode.
- the low frequency side of the resonance frequency It is set as appropriate depending on the force of spreading to the upper side and whether to spread to the high frequency side.
- the transmission line connection structure according to the present embodiment has the above-described configuration. Next, the operation thereof will be described.
- each slot line 1 the surface electrodes 3 constituting each slot line 1 are arranged in a state of being separated from each other with a gap 5 of a constant interval. Further, the two slot resonators 6 are arranged to face each other with the gap 5 interposed therebetween, and the gap 5 side is open. For this reason, the open end force of the slot resonator 6 may leak the high frequency signal toward the gap 5.
- the slot line 1 is generally housed in a package or the like, and the surface electrode 3 is in contact with the conductor wall surface in the package and is connected to, for example, the ground. Is short-circuited by. For this reason, an actual current flows through the conductor wall surface disposed at the tip of the gap 5 due to the high-frequency signal leaking into the gap 5. This result As a result, the resonance frequency of the slot resonator 6 is easily affected by the connection state between the surface electrode 3 and the package, and the connection characteristics of the two slot lines 1 tend to become unstable.
- the slot stub 8 can be used to suppress high-frequency signal leakage through the gap 5. it can. For this reason, even when the front end side of the gap 5 is short-circuited by, for example, the inner wall of the package, the resonance frequency of the slot resonator 6 in which an actual current due to a high-frequency signal does not flow through the short-circuit end can be stabilized.
- the transmission characteristics of the two slot lines 1 of the present embodiment were calculated using electromagnetic field simulation for a high-frequency signal of 60 GHz, for example. The result is shown in FIG.
- the slot line 1 was connected using two slot resonators 6, connection characteristics using a two-stage bandpass filter (BPF) were obtained in the 60 GHz band. Being At this time, the passband width BW at which the reflection loss RL is 20 dB or less is, for example, 10 GHz or more.
- BPF bandpass filter
- the terminal position (distance dimension R) of the gap 5 is changed within a range of ⁇ 0.2 mm, and the frequency characteristics of the reflection loss RL are simulated. -Calculated using a cision. The results are shown in Fig. 6. Note that the end of gap 5 is short-circuited. It was supposed to be.
- the passband width BW where the return loss RL is 20dB or less is 6GHz. It can be seen that the above can be secured. As a result, even when the processing accuracy of the slot line 1 is low, for example, when the dielectric substrate 2 and the surface electrode 3 have a dimensional error of ⁇ 0.2 mm, the slot line 1 connection structure according to the present embodiment has a high frequency. It was found that a passband of about 10% (specific bandwidth 10%) can be secured for the signal frequency of 60GHz.
- the effect of the slot stub 8 was that sufficient connection characteristics could be maintained between the slot lines 1 even when an error occurred at the end position of the gap 5.
- the reflection loss RL was measured by changing the connection structure of the slot line 1 actually created within the range of the end position of the gap 5 ⁇ 0.2 mm. The result is shown in FIG. From the results in Fig. 8, even if the actual slot line 1 is changed within the range of the termination position of the gap 5 within ⁇ 0.2 mm, a passband width BW of about 5 GHz can be secured for the return loss RL of 20 dB or less. It was.
- the distance dimension Ds between the slot stub 8 and the slot resonator 6 is an odd mode.
- the frequency ⁇ g_odd is set to a value sufficiently smaller than 1Z2 (Ds ⁇ ⁇ g_odd / 2)
- the low-order odd-mode resonance frequency Fodd lower than the even-mode resonance frequency Feven is The value is close to the even mode resonance frequency Feven.
- the two slot resonators 6 resonate in the state shown in FIG.
- the resonance frequency Fodd is the length dimension Lr of the slot resonator 6, the slot stub 8 and the slot resonator 6
- the distance dimension Ds between the slot stub 8 and the slot resonator 6 is set to approximately the same value (Ds ⁇ g_odd / 2) as 1Z2 for the wavelength ⁇ g_odd of the odd-mode high-frequency signal.
- the higher order odd mode resonance frequency Fodd is higher than the even mode resonance frequency Feven.
- the two slot resonators 6 resonate in the state shown in FIG.
- the resonance frequency Fodd is the length dimension Lr of the slot resonator 6, the slot stub 8 and the slot resonator 6
- the frequency is such that the sum of the distance dimension Ds between and the length dimension Ls of the slot stub 8 is approximately the same as the wavelength ⁇ g_odd (Lr + Ds + Ls ⁇ g_odd).
- the distance dimension Ds can be used as a degree of freedom for determining the odd-mode resonance frequency Fodd.
- the odd-mode resonance frequency F odd changes, but the resonance in the even mode does not leak a high-frequency signal into the gap 5. It can be seen that the even-mode resonance frequency Feven hardly changes. As a result, the odd-mode resonance frequency Fodd can be determined independently of the even-mode resonance frequency Feven, so that the design of the connection structure can be improved.
- the slot stub 8 is provided on the surface electrode 3, so that the high-frequency signal leaking from the gap 5 can be reflected by the band blocking effect of the slot stub 8. For this reason, leakage of high-frequency signals through the gap 5 can be suppressed, so that no actual current flows at the end of the gap 5.
- the end position of the gap 5 changes due to variations in the application of the conductive adhesive when mounting the slot line 1 in the package, variations in the dimensions of the knocker, variations in the mounting position of the dielectric substrate 2, etc. Stabilize the resonant frequency of the slot resonator 6 and provide a sufficient passband between the two slot lines 1. Area can be secured.
- the slot line 1 can be easily mounted in the knocker, which reduces the manufacturing cost. Reduction and improvement in design freedom can be achieved.
- the odd mode high frequency is set. Even when the signal leaks through the gap 5, the branching position of the gap 5 and the slot stub 8 (the base end side of the slot stub 8) can be a virtual open end for this high-frequency signal. This improves the reflection characteristics for the leaked high-frequency signal, so that the leaked high-frequency signal can be reliably blocked by the slot stub 8, and the stability of the resonance frequency of the slot resonator 6 can be further improved. . As a result, it is possible to secure a desired passband width between the two slot lines 1 and to connect the two slot lines 1 even when relatively large variations occur in various dimensions of the dielectric substrate 2 and the like. Loss can be reduced.
- the distance dimension Ds between the slot stub 8 and the slot resonator 6 is a value sufficiently smaller than 1Z2 (Ds ⁇ ⁇ g_oddZ2), or almost the same value as 1 ⁇ 2 (Ds g_oddZ2).
- Ds ⁇ ⁇ g_oddZ2 1Z2
- Ds g_oddZ2 1 ⁇ 2
- the passband of the BPF by the two slot resonators 6 can be set to the low frequency side or the high frequency side of the even mode resonance frequency Feven, and the passband width is widened using the coupling of the two modes. be able to.
- the odd-mode resonance frequency Fodd can be determined independently of the even-mode resonance frequency Feven. Therefore, the distance dimension Ds can be used as a degree of freedom for determining the odd-mode resonance frequency Fodd, and the design of the connection structure can be improved.
- the length dimension (distance dimension Ds) of the gap 5 between the slot resonator 6 and the slot stub 8 is set to a value sufficiently smaller than ⁇ g_odd / 2, the slot resonator 6 And slots
- the tabs 8 can be placed close to each other, and the connection structure of the slot line 1 can be reduced in size.
- the slot stub 8 having a substantially rectangular band shape is used.
- the present invention is not limited to this, and a configuration using a slot stub 11 having a tip formed in an arc shape as in the first modification shown in FIG. In this case, since there are no corners on the tip side of the slot stub 11, current concentration at the corners is alleviated, and loss of high-frequency signals can be reduced.
- the slot stub 8 that extends linearly is used.
- the present invention is not limited to this, and a configuration using a slot stub 12 having a shape folded at an intermediate position as in the second modification shown in FIG. Thereby, the slot stub 12 can be reduced in size.
- the slot stub 8 having a strip shape is used.
- the present invention is not limited to this, and a configuration using a substantially circular slot stub 13 as in the third variation shown in FIG.
- a configuration using a substantially fan-shaped slot stub 14 may be adopted. In these cases, in addition to reducing high-frequency signal loss, it is possible to suppress leakage of high-frequency signals over a wide band.
- the two surface electrodes 3 provided apart from each other are provided with the slot stubs 8 on both sides in the width direction with the slot resonator 6 interposed therebetween.
- the present invention is not limited to this.
- the slot resonator 6 is sandwiched only between one of the two surface electrodes 3 and the both sides in the width direction.
- a configuration may be adopted in which slot stubs 8 are provided.
- one surface electrode 3 is provided with a slot stub 8 on one side in the width direction of the slot resonator 6, and the other surface electrode 3 is provided on the other surface electrode 3.
- the slot stub 8 may be provided on the other side in the width direction of the slot resonator 6.
- the distance dimension Ds between the slot stub 8 provided on one surface electrode 3 and the slot stub 8 provided on the other surface electrode 3 is different from that of the slot resonator 6.
- the present invention is not limited to this.
- the slot stub 8 provided on one surface electrode 3 and the other surface electrode 3 The slot stub 8 provided in the configuration may be provided at a position where the distance between the slot stub 8 and the slot resonator 6 is different. As a result, leakage of high-frequency signals can be suppressed over a wide band.
- the slot line 1 is configured by providing the surface electrode 3 only on the surface 2 A of the dielectric substrate 2.
- a ground electrode may be provided over the entire back surface 2B of the dielectric substrate 2 to form a grounded slot line.
- FIG. 19 and FIG. 20 show a transmission line connection structure according to the second embodiment of the present invention.
- the feature of this embodiment is that the same slot pattern and resonator are formed on both surfaces of the dielectric substrate.
- the pattern and the stub pattern are arranged opposite to each other to form a planar dielectric line (PDTL), PDT L resonator, and PDTL stub.
- PDTL planar dielectric line
- PDT L resonator PDT L resonator
- PDTL stub a planar dielectric line
- the PDTL 21 indicates a planar dielectric line (hereinafter referred to as PDT L21) having a double-sided symmetrical slot line force as a transmission line.
- the PDTL 21 includes a dielectric substrate 22, a front electrode 23, a back electrode 24, and slots 25 and 26.
- dielectric substrate 22 is formed in a flat plate shape having a relative dielectric constant ⁇ r using a ceramic material or the like in substantially the same manner as dielectric substrate 2 according to the first embodiment. It has a front surface 22A and a back surface 22B. Further, a surface electrode 23 formed in a thin film shape using a conductive metal material is provided on the surface 22A of the dielectric substrate 22, and a back electrode 24 made of a conductive thin film is provided on the back surface 22B of the dielectric substrate 22. Is formed. Further, the surface electrode 23 is formed with a slot 25 having a certain width dimension and opened in a band shape (groove shape), and the back electrode 24 has a slot at a position facing the slot 25 and the dielectric substrate 22 therebetween.
- the slots 25 and 26 are provided.
- the slots 25 and 26 are formed almost symmetrically on both surfaces 22A and 22B of the dielectric substrate 22, and are along the transmission direction of the high-frequency signal such as microwaves and millimeter waves (indicated by the arrow A in FIG. 19). It extends.
- two PDTLs 21 are arranged in a straight line, for example, along the transmission direction of the high-frequency signal.
- the dielectric substrates 22 of the two PDTLs 21 are spaced apart from each other.
- the edges 23A, 24A of the electrodes 23, 24 are, for example, arranged farther to the center side (inner side) than the end face of the dielectric substrate 22. Is placed. For this reason, the surface 22A of the dielectric substrate 22 is exposed at the portion of the dielectric substrate 22 that protrudes from the edges 23A, 24A of the electrodes 23, 24 toward the other dielectric substrate 22.
- Reference numeral 27 denotes a gap formed between the electrodes 23 and 24 (double-sided electrodes) constituting one PDTL 21 and the electrodes 23 and 24 constituting the other PDTL 21.
- the gap 27 is formed with a certain distance between the edges 23A, 24A of one electrode 23, 24 and the edges 23A, 24A of the other electrode 23, 24, and the one electrode 23, 24 and the other The electrodes 23 and 24 are opposed to each other in a separated state. Thus, the gap 27 is sandwiched between the one electrode 23, 24 and the other electrode 23, 24.
- Reference numeral 28 denotes a PDTL resonator with one end open provided on the electrodes 23 and 24 of each PDTL21.
- Each of the PDTL resonators 28 is constituted by a substantially rectangular notch 28A formed in the front electrode 23 continuous with the slot 25, and a notch 28B formed in the back electrode 24 continuous with the slot 26. Has been. These notches 28A and 28B are opposed to each other with the dielectric substrate 22 in between, and are formed substantially symmetrically on both surfaces 22A and 22B of the dielectric substrate 22.
- the length dimension of the PDTL resonator 28 along the transmission direction of the high-frequency signal is, for example, about ⁇ g_even / 4 when the wavelength of the even-mode high-frequency signal propagating through the PDT L21 is ⁇ g_even. Is set.
- one end side in the length direction of the PDTL resonator 28 is located toward the end portion side (near the end edges 23A, 24A) of the electrodes 23, 24 and is opened toward the gap 27.
- the other end in the length direction of the PDTL resonator 28 extends toward the center of the electrodes 23 and 24, and a PDTL 21 is connected to the center in the width direction.
- the two PDTL resonators 28 face each other across the gap 27 and are arranged close to each other so that they can be directly electromagnetically coupled.
- a matching portion 29 is provided in which the slot width is expanded stepwise.
- the matching unit 29 improves the impedance matching between the PDTL resonator 28 and the PDTL 21 and optimizes the coupling amount between them.
- Reference numeral 30 denotes a PDTL stub formed on the electrodes 23 and 24.
- the PDTL stub 30 is The slot stubs 30A and 30B extend from the gap 27 toward the center of the electrodes 23 and 24.
- the slot stubs 30A and 30B are arranged to face each other across the dielectric substrate 22, and branch from the gap 27 to form a substantially rectangular band shape.
- the PD TL stub 30 is provided on the electrodes 23 and 24 on both sides in the transmission direction with the gap 27 interposed therebetween, and is provided on both sides in the extension direction of the gap 27 with the PDTL resonator 28 interposed therebetween.
- a total of four PDTL stubs 30 are provided for each of the electrodes 23 and 24.
- the length dimension of the PDTL stub 30 is set to a value of about g_oddZ4, for example, when the wavelength of the odd-mode high-frequency signal propagating through the PDTL 21 is g_odd.
- the PDTL stub 30 makes the middle part of the gap 27 located on the base end side a virtual open end for the odd-mode high frequency signal.
- the distance dimension Ds between the PDTL stub 28 and the P DTL resonator 28 is substantially equal to the wavelength ⁇ g_odd of the odd-mode high-frequency signal, as in the slot stub 8 according to the first embodiment.
- the length dimension (distance dimension Ds) of the gap 27 located between the PDTL stub 30 and the PDTL resonator 28 is equal to the even-mode BPF pass frequency band consisting of two PDTL resonators 28. It is set as appropriate depending on whether the resonance frequency is widened to the low frequency side or to the high frequency side.
- this embodiment can provide the same operational effects as those of the first embodiment.
- the PDTL stub 30 has a configuration in which the tip portion extends in a substantially quadrangular linear shape, like the slot stub 8 according to the first embodiment.
- the present invention is not limited to this.
- the tip may be formed in a folded shape, as in the second modified example, which may be formed in a substantially arc shape.
- it may be formed in a circular shape or a fan shape.
- the arrangement of the PDTL stub 30 is not limited to the present embodiment, and various arrangements are possible, for example, as in the fifth to seventh modifications.
- FIG. 21 and FIG. 22 show a third embodiment of the present invention.
- the feature of this embodiment is that the slot line connection structure according to the present invention is applied to a communication device.
- the same components as those in the first embodiment are denoted by the same reference numerals, The explanation will be omitted.
- Reference numeral 41 denotes a resin package that has been subjected to metallization processing of a conductive metal material that forms the outer shape of a communication device.
- the resin package 41 is configured by a box-shaped casing 42 having an upper surface opened and a lid 43 having a substantially rectangular plate shape that covers the opening side of the casing 42.
- an input terminal 42A and an output terminal 42B for inputting and outputting the intermediate frequency signal IF are provided, and an electrode 42C for inputting the bias voltage Vd is provided.
- an opening 43A having a tapered shape is formed at the center of the lid 43 so that electromagnetic waves can be transmitted and received between the inside and the outside of the casing 42.
- the parasitic antenna 43B faces a radiation slot 45A of an antenna block 45 described later, and adjusts the directivity and radiation characteristics (radiation pattern) of the radiation slot 45A.
- Reference numeral 44 denotes a multi-chip substrate that forms a dielectric substrate accommodated in the casing 42.
- the multi-chip substrate 44 is constituted by, for example, five divided substrates 44A to 44E made of a dielectric material, and has a substantially rectangular flat plate shape as a whole.
- the surface electrodes 3 are formed over substantially the entire surface of the divided substrates 44A to 44E, and the surface electrodes 3 of the divided substrates 44A to 44E are separated from each other with a gap 5.
- the divided boards 44A to 44E are provided with an antenna block 45, a duplexer block 46, a transmission block 47, a reception block 48, and an oscillator block 49, which will be described later, as functional blocks.
- Reference numeral 45 denotes an antenna block that transmits transmission radio waves and receives reception radio waves.
- the antenna block 45 is provided on a divided substrate 44A disposed on the center side of the multichip substrate 44.
- the antenna block 45 is constituted by a radiation slot 45 A, and the radiation slot 45 A is connected to the duplexer block 46 by the slot line 1 and the slot resonator 6.
- Reference numeral 46 denotes a duplexer block that forms an antenna duplexer connected to the antenna block 45.
- the duplexer block 46 is provided on a divided substrate 44B adjacent to the rear side of the divided substrate 44A, and is configured by a slot resonator 46A having a square opening force.
- the slot resonator 46A is connected to the antenna block 45, the transmission block 47, and the reception block 48 by the slot line 1 and the slot resonator 6, respectively.
- Reference numeral 47 denotes a transmission block that is connected to the duplexer block 46 and outputs a transmission signal toward the antenna block 45.
- the transmission block 47 is provided on a divided substrate 44C adjacent to the divided substrate 44B.
- the transmission block 47 includes a mixer 47A that uses an electronic component such as a field effect transistor and mixes the local frequency signal IF output from the oscillator block 49 with the intermediate frequency signal IF and upconverts it to a transmission signal.
- a band-pass filter 47B that removes the transmission signal force noise from the mixer 47A, and a power amplifier 47C that amplifies the power of the transmission signal formed by using an electronic component that operates with a bias voltage Vd.
- the mixer 47A, the band-pass filter 47B, and the power amplifier 47C are connected to each other using the slot line 1.
- the mixer 47 A is connected to the oscillator block 49 by the slot line 1 and the slot resonator 6.
- the power amplifier 47C is connected to the duplexer block 46 by the slot line 1 and the slot resonator 6.
- [0087] 48 is connected to the duplexer block 46, and when the reception signal received by the antenna block 45 is input, the reception signal is mixed with the local oscillation signal output from the oscillator block 49 to intermediate the reception signal.
- the receiving block that down-converts to the frequency signal IF is shown.
- the receiving block 48 is provided on a divided substrate 44D adjacent to the divided substrate 44B.
- the reception block 48 includes a low-noise amplifier 48A that is formed using electronic components that operate with a bias voltage Vd and amplifies the reception signal with low noise, and the reception signal power generated by the low-noise amplifier 48A is also a band that removes noise.
- the pass filter 48B and a mixer 48C that mixes the local oscillation signal output from the oscillator block 49 and the received signal output from the band pass filter 48B and down-converts them to an intermediate frequency signal IF. .
- the low noise amplifier 48A, the band pass filter 48B, and the mixer 48C are connected to each other using the slot line 1.
- the low noise amplifier 48 A is connected to the duplexer block 46 by the slot line 1 and the slot resonator 6.
- the mixer 48C is connected to the oscillator block 49 by the slot line 1 and the slot resonator 6.
- [0089] 49 is connected to the transmission block 47 and the reception block 48, and is connected to a local oscillation signal having a predetermined frequency (for example, an oscillator block that oscillates a high frequency signal such as a microwave or a millimeter wave is illustrated.
- the oscillator block 49 is provided on a divided substrate 44E sandwiched between the divided substrates 44C and 44D.
- the oscillator block 49 is formed by using electronic components that are operated by a noise voltage Vd.
- the oscillator block 49 oscillates a voltage-controlled oscillator 49A that oscillates a signal having a frequency corresponding to the control signal Vc, and supplies the signal from the voltage-controlled oscillator 49A to the transmission block 47 and the reception block 48.
- Branch circuit 49B is provided to the transmission block 47 and the reception block 48, and is connected to a local oscillation signal having a predetermined frequency (for example, an oscillator block that oscillates a high frequency signal such as a microwave or a millimeter wave
- the voltage controlled oscillator 49A and the branch circuit 49B are connected to each other using the slot line 1.
- the branch circuit 49B is connected to the transmission block 47 and the reception block 48 by the slot line 1 and the slot resonator 6.
- the slot resonator 6 is provided adjacent to each other adjacent two divided substrates 44A to 44E, and the two divided substrates 44A to 44 are adjacent to each other by being electromagnetically coupled to each other.
- slot stubs 8 are provided on both sides in the width direction of the slot resonator 6 connecting the divided substrates 44A to 44E. This suppresses leakage of the high frequency signal to the resin package 41 through the gap 5 between the surface electrodes 3.
- the communication device is configured as described above, and the operation thereof will be described next.
- a local oscillation signal having a predetermined frequency is input to the transmission block 47 using the oscillator block 49 and an intermediate frequency signal IF is input.
- the transmission block 47 up-converts the local oscillation signal from the oscillator block 49 and the intermediate frequency signal IF, and converts the up-converted transmission signal to the antenna block 45 via the duplexer block 46.
- the antenna block 45 radiates a high-frequency transmission signal through the radiation slot 45A, and the parasitic antenna 43B transmits the transmission signal to the outside through the opening 43A of the lid 43 while adjusting the radiation pattern of the transmission signal. .
- the reception signal received from the antenna block 45 is input to the reception block 48 via the duplexer block 46.
- receive A local oscillation signal having a predetermined frequency is input to block 48 using oscillator block 49.
- the reception block 48 mixes the local oscillation signal from the oscillator block 49 and the reception signal, and down-converts them to the intermediate frequency signal IF.
- the slot lines 1 of the divided substrates 44A to 44E are electrically connected in a non-contact state using the slot resonator 6, and the periphery of the slot resonator 6 is Is provided with a slot stub 8.
- the connection state of the slot line 1 can be stabilized, the characteristics of the entire communication device can be stabilized and the reliability can be improved.
- the connection characteristics of the slot line 1 can be stabilized regardless of the dimensional accuracy and mounting accuracy of the resin package 41, multichip substrate 44, surface electrode 3, etc. It is possible to improve the degree.
- the transmission line connection structure according to the present invention is applied to a communication device as a transmission / reception device.
- the present invention is not limited to this, and may be applied to, for example, a radar device as a transmission / reception device.
- the slot line 1, the slot resonator 6, and the slot stub 8 are used.
- the present invention is not limited to this, and a configuration using a PDTL, a PDTL resonator, and a PDTL stub may be used as in the second embodiment.
- the matching sections 7 and 29 are provided between the slot line 1 and the PDTL 21 and the slot resonator 6 and the PDTL resonator 28.
- the present invention is not limited to this.
- the matching section may be omitted and the slot line and the PDTL may be directly connected to the slot resonator and the PDTL resonator.
- the edges 3A, 23A, 24A of the front electrodes 3, 23 and the back electrode 24 are arranged at positions different from the end surfaces of the dielectric substrates 2, 22.
- the present invention is not limited to this.
- the edge of the front electrode and the back electrode may be arranged at the same position as the end surface of the dielectric substrate.
- the two slot lines 1 and PDTL 21 are separately provided on the two dielectric substrates 2 and 22.
- the present invention is not limited to this.
- two slot lines are provided by providing two surface electrodes on a same dielectric substrate.
- a configuration in which two PDTLs are provided on a single dielectric substrate is also acceptable.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Waveguide Connection Structure (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006531392A JP4029173B2 (ja) | 2004-08-24 | 2005-07-25 | 伝送線路接続構造および送受信装置 |
US10/589,626 US7518472B2 (en) | 2004-08-24 | 2005-07-25 | Transmission line connecting structure and transmission/reception device |
EP05766369A EP1783855A4 (en) | 2004-08-24 | 2005-07-25 | TRANSMISSION LINE CONNECTOR STRUCTURE AND TRANSMITTER / RECEIVER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-244016 | 2004-08-24 | ||
JP2004244016 | 2004-08-24 |
Publications (1)
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WO2006022104A1 true WO2006022104A1 (ja) | 2006-03-02 |
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ID=35967323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/013555 WO2006022104A1 (ja) | 2004-08-24 | 2005-07-25 | 伝送線路接続構造および送受信装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7518472B2 (ja) |
EP (1) | EP1783855A4 (ja) |
JP (1) | JP4029173B2 (ja) |
CN (1) | CN100477374C (ja) |
WO (1) | WO2006022104A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008147750A (ja) * | 2006-12-06 | 2008-06-26 | National Institute Of Advanced Industrial & Technology | アンテナとそれを用いた発振器 |
JP2008533813A (ja) * | 2005-03-08 | 2008-08-21 | レイセオン・カンパニー | Ctsアレイ用の真時間遅延フィードネットワーク |
JP2010509795A (ja) * | 2006-11-08 | 2010-03-25 | ブイグ テレコム | 1/4波長トラップを備える平面アンテナグランドプレーン支持体 |
Families Citing this family (8)
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US9627739B2 (en) * | 2012-06-19 | 2017-04-18 | Alcatel Lucent | System for coupling printed circuit boards |
DE102012106174A1 (de) * | 2012-07-10 | 2014-01-16 | Endress + Hauser Gmbh + Co. Kg | Mit einer Störwellen aussendenden Hochfrequenzbaugruppe ausgestattete Leiterplatte |
DE102013100979B3 (de) * | 2013-01-31 | 2014-05-15 | Ott-Jakob Spanntechnik Gmbh | Vorrichtung zur Überwachung der Lage eines Werkzeugs oder Werkzeugträgers an einer Arbeitsspindel |
US9343789B2 (en) * | 2013-10-31 | 2016-05-17 | Zhejiang University | Compact microstrip bandpass filter with multipath source-load coupling |
EP3063829B1 (en) * | 2013-11-01 | 2019-06-26 | Telefonaktiebolaget LM Ericsson (publ) | Method and arrangement for board-to-board interconnection |
FR3057999B1 (fr) * | 2016-10-21 | 2019-07-19 | Centre National D'etudes Spatiales C N E S | Guide d'onde multicouche comprenant au moins un dispositif de transition entre des couches de ce guide d'onde multicouche |
EP3818587A4 (en) | 2018-07-05 | 2022-10-19 | Mezent Corporation | RESONANT DETECTION DEVICE |
JP2022509294A (ja) * | 2018-11-29 | 2022-01-20 | テクノロギアン トゥトキムスケスクス ヴェーテーテー オイ | 無線通信装置用のアンテナアセンブリ |
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- 2005-07-25 US US10/589,626 patent/US7518472B2/en active Active
- 2005-07-25 CN CN200580002233.4A patent/CN100477374C/zh active Active
- 2005-07-25 EP EP05766369A patent/EP1783855A4/en not_active Ceased
- 2005-07-25 JP JP2006531392A patent/JP4029173B2/ja active Active
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JP2008533813A (ja) * | 2005-03-08 | 2008-08-21 | レイセオン・カンパニー | Ctsアレイ用の真時間遅延フィードネットワーク |
JP4856164B2 (ja) * | 2005-03-08 | 2012-01-18 | レイセオン カンパニー | Ctsアレイ用の真時間遅延フィードネットワーク |
JP2010509795A (ja) * | 2006-11-08 | 2010-03-25 | ブイグ テレコム | 1/4波長トラップを備える平面アンテナグランドプレーン支持体 |
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Also Published As
Publication number | Publication date |
---|---|
US20070176713A1 (en) | 2007-08-02 |
CN1910784A (zh) | 2007-02-07 |
US7518472B2 (en) | 2009-04-14 |
EP1783855A1 (en) | 2007-05-09 |
JPWO2006022104A1 (ja) | 2008-05-08 |
EP1783855A4 (en) | 2007-10-03 |
JP4029173B2 (ja) | 2008-01-09 |
CN100477374C (zh) | 2009-04-08 |
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