WO2004082080A1 - 同軸コネクタと多層基板との接続構造 - Google Patents
同軸コネクタと多層基板との接続構造 Download PDFInfo
- Publication number
- WO2004082080A1 WO2004082080A1 PCT/JP2004/003297 JP2004003297W WO2004082080A1 WO 2004082080 A1 WO2004082080 A1 WO 2004082080A1 JP 2004003297 W JP2004003297 W JP 2004003297W WO 2004082080 A1 WO2004082080 A1 WO 2004082080A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coaxial connector
- substrate
- signal line
- transmission line
- multilayer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/52—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted in or to a panel or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/04—Fixed joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
-
- 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
- H01P5/085—Coaxial-line/strip-line transitions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
- H05K1/0219—Printed shielding conductors for shielding around or between signal conductors, e.g. coplanar or coaxial printed shielding conductors
-
- 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
- H05K1/141—One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters
-
- 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
Definitions
- the present invention relates to a connection structure between a multi-layer board and a coaxial connector used for a high-frequency circuit of a communication device, for example.
- the transmission line of a high-frequency multi-layer board (hereinafter, referred to as a “multilayer board”) mounted in a conductive casing and a signal line pattern (hereinafter, referred to as a “conductive pattern”) are coaxial connectors (See, for example, Patent Documents)
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-1-177 7 '311
- the high-frequency signal input from the coaxial connector passes through the joint between the coaxial connector and the multilayer board, propagates on the transmission line formed on the multilayer board, and also in the propagation path in the opposite direction.
- the high-frequency signal that has propagated on the transmission line propagates through the joint between the coaxial connector and the multilayer board to the coaxial connector.
- the distance between the ground plane on the housing and the core wire of the coaxial connector increases due to the thickness of the multilayer board, and in this region, the impedance as the transmission line greatly increases. Disturbance results in dielectric properties.
- the degree of the dielectric property tends to increase.
- a large pattern margin is generated between the substrate end surface and the end of the ground pattern. .
- the coaxial connector is provided with a capacitive coaxial line to cancel the above-described dielectric properties of the transmission line, thereby achieving impedance matching. And ensure its characteristics.
- the capacitive coaxial line provided in the coaxial connector near the frequency designed to achieve impedance matching is used.
- the dielectric transmission line formed by the joint between the coaxial connector and the multilayer board cancels out the capacitive and dielectric properties of each other, and the matching is achieved.Therefore, there is little disturbance in impedance, and a certain degree of return port characteristics is obtained. be able to.
- matching cannot be achieved, and the disturbance of impedance due to the joint between the coaxial connector and the multilayer board increases, resulting in low return loss characteristics essential for high-frequency circuits. Because of these factors, it is very difficult to obtain good return loss characteristics over a wide band with the conventional connection structure between a coaxial connector and a multilayer board. There was a problem that they could not respond.
- the present invention has been made to solve the above-described problems, and it is possible to greatly reduce the disturbance of impedance due to an electrical junction between a coaxial connector and a substrate, thereby achieving excellent return loss characteristics. Secure in a wide band To obtain a connection structure between a coaxial connector and
- a connection structure between a coaxial connector and a multilayer board according to the present invention includes a housing, a coaxial connector provided on the housing and having a core wire, and a multilayer provided on the housing and having a first signal line pattern.
- a second board having a second signal line pattern and a thickness smaller than the thickness of the multi-layer board;
- a connection structure between a coaxial connector and a multilayer board according to the present invention includes a housing having upper and lower stages, and a side wall formed adjacent to the upper stage, a coaxial connector having a core wire provided on the side wall, and a lower stage.
- a multi-layer board having a first signal line pattern, an intermediate board provided on an upper stage and having a second signal line pattern, and a core wire of a coaxial connector and a second signal line pattern.
- a transmission line that electrically connects the first signal line pattern to the second signal line pattern and suppresses an electromagnetic field distribution inside the multilayer substrate. is there.
- a connection structure between a coaxial connector and a multilayer board according to the present invention is characterized in that the transmission line is a coplanar transmission line.
- a connection structure between a coaxial connector and a multilayer substrate according to the present invention is characterized in that the multilayer substrate having the first signal line pattern is a microstrip-line transmission line or a coplanar transmission line. is there.
- connection structure between the coaxial connector and the multilayer board according to the present invention is a board for mediation.
- the intermediary substrate that electrically connects the high-frequency substrate and the coaxial connector mounted in the conductive casing is arranged between the high-frequency substrate and the coaxial connector.
- a control system circuit so that a single-layer double-sided board can be used as the intermediary board, and the thickness of the intermediary board can be reduced as much as possible.
- the signal line pattern of the intermediary board and the core wire of the coaxial connector can be made much closer to the ground plane as compared with the conventional joint structure in which the cable and the coaxial connector are electrically connected directly to each other. This has the effect of greatly reducing the disturbance and ensuring excellent return loss characteristics over a wide band.
- FIG. 1 is a vertical sectional side view showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 1 of the present invention.
- FIG. 2 is a partially cutaway plan view of FIG.
- FIG. 3 is a plan view showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 2 of the present invention, with a part cut away.
- FIG. 4 is a plan view, partially cut away, showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 3 of the present invention.
- FIG. 5 is a plan view showing a partially cutaway connection structure between a coaxial connector and a multilayer board according to Embodiment 4 of the present invention.
- FIG. 6 is a plan view, partially cut away, showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 5 of the present invention.
- FIG. 1 is a longitudinal sectional side view showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 1 of the present invention
- FIG. 2 is a partially cutaway plan view of FIG.
- a coaxial connector 10 and a multilayer board (high-frequency board) 20 are mounted on a conductive casing 1, and the coaxial connector 10 and the multilayer board 20 are connected to each other.
- An intermediary substrate 30 that electrically connects the two is disposed between them.
- a connector mounting hole 2 is provided on a side wall of the housing 1, and a core wire 11 of the coaxial connector 10 is inserted into the connector mounting hole 2 via an insulator 12.
- an intermediary substrate 30 is mounted on the inner wall of the housing 1.
- the intermediary substrate 30 has a signal line pattern 31 forming a microstrip line transmission line formed on the front surface, and a microstrip line transmission line ground pattern ( In the vicinity of one end (near the end opposite to the connector mounting hole 2), the substrate surface layer and the ground pattern 32 are formed. Via holes 33 for electrical connection are provided.
- the core wire 11 of the coaxial connector 10 inserted into the connector mounting hole 2 as described above extends over the signal line pattern 31 of the mediation board 30 mounted on the inner wall of the housing 1.
- the signal line pattern 31 is electrically connected to the signal line pattern 31 with a solder material such as solder.
- a multilayer board 20 is mounted on the opposite side of the connector mounting hole 2 so as to be adjacent to the intermediary board 30. That
- the multilayer substrate 20 is composed of a signal line pattern 21 constituting a microstrip line transmission line on the surface and a microstrip line transmission line ground pattern on the inner layer of the substrate (hereinafter referred to as an inner layer ground pattern on the substrate). 22) and a ground pattern 23 on the back surface of the substrate, and a via hole 24 for electrically connecting these patterns 22 and 23 to the surface layer of the substrate near the intermediary substrate 30. are doing.
- the signal line patterns 21, 31 of the two are electrically connected to each other by ribbon bonding or the like.
- the via holes 24 and 33 are electrically connected to each other by ribbon bonding or the like.
- the signal line pattern 31 of the intermediary substrate 30, the signal line pattern 21 of the surface of the multilayer substrate 20, and each of the ground patterns 22 23 23 are coplanar transmission lines.
- Transmission lines electrically connected at 4 o and 40 a are formed. That is, the transmission line constitutes a continuous high-frequency transmission line over the mediation substrate 30 and the multilayer substrate 20.
- the high-frequency signal input from the coaxial connector 10 passes through the joint between the core wire 11 of the coaxial connector 10 and the signal line pattern 31 of the intermediary board 30 and is constituted by the signal line pattern.
- Microstripline type transmission line 31 After propagating through the transmission line 31, passing through the coplanar type transmission line 40, and then the signal line pattern on the multilayer substrate 2 ⁇ Propagating on track 21. Even in the case of the propagation path in the opposite direction, the high-frequency signal propagating through the microstrip line transmission line constituted by the signal line pattern 21 on the surface of the multilayer substrate 20 is transmitted through the coplanar transmission line 4. After passing through 0, a microstrip line transmission line composed of signal line pins 31 on the intermediary substrate 30 is set up.
- the intermediary substrate 30 is arranged between the multi-layer substrate 20 mounted on the conductive casing 1 and the coaxial connector 10, and the intermediary substrate 30
- the upper signal line pattern 31 and the core wire 11 of the coaxial connector 10 are electrically connected, and the signal line pattern 31 on the intermediary board 30 and the surface signal of the multilayer board 20 are electrically connected. Since the line pattern 21 is electrically connected to the coplanar transmission line 40, the disturbance of the impedance can be greatly reduced, and the excellent re-transmission loss characteristic can be secured in a wide band. There is an effect that can be.
- the impedance is disturbed at the electrical connection portion between the coaxial connector 10 and the mediating substrate 30, but unlike the circuit of the multilayer substrate 20, the mediating substrate There is no need to mount a control system circuit on 30, so that the mediating substrate 30 can be made to have an optimal substrate shape and design. Therefore, the thickness of the intermediary substrate 30 can be reduced as much as possible.
- the signal line pattern 31 on the front surface of the circuit board 30 and the grounding pattern 32 on the rear surface and the grounding surface on the housing and the core wire 11 of the coaxial connector can be brought very close to each other. This has the effect that the disturbance of the impedance can be greatly improved.
- the inner layer ground pattern 22 of the microstrip line transmission line formed by the uppermost signal line pattern 21 and the inner layer ground pattern 22 immediately below the uppermost layer is used as the substrate. Since it is difficult to form up to the end face, a pattern margin M 1 (see FIGS. 1 and 2) is generated between the end face of the inner layer ground pattern 22 and the board end face.
- the intermediary substrate 30 is not a multilayer substrate but a single-layer double-sided substrate, by using, for example, an alumina substrate as the intermediary substrate 30, the ground pattern 32 on the back surface of the substrate is formed. The power margin M2 between the end face and the board end face can be greatly reduced.
- the ground pattern 32 on the back surface can be formed up to near the substrate end surface, and therefore, the transmission line near the substrate end surface generated in the multilayer substrate 20.
- This has the effect that disturbances in the impedance dance can be greatly reduced.
- the joint between the coaxial connector 10 and the intermediary substrate 30 as described above has an effect that excellent return loss characteristics over a wide band can be obtained.
- signal line patterns 21 and 31 forming a common microstrip line transmission line on the surfaces of the multilayer substrate 20 and the intermediary substrate 30 are connected to each other, and the two substrates 20 and If the structure is designed to connect between the two substrates 20 and 30, the inner layer pattern margin M1 of the multilayer substrate 20 and the thickness of the multilayer substrate 20 and the thickness of the substrate gap wall are large. However, the impedance is greatly disturbed at the junction between them, and good return loss characteristics cannot be obtained.
- the signal line pattern 31 on the intermediate substrate 30 and the multilayer substrate 2 By joining the signal line pattern 21 on the coplanar transmission line 40 by ribbon bonding, etc., the electromagnetic field at the joint portion propagates only to the coplanar transmission line 40.
- FIG. 3 is a partially cutaway plan view showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 2 of the present invention.
- the same or corresponding parts as in FIGS. 1 and 2 are denoted by the same reference numerals. The description is omitted here.
- the two coaxial connectors and the intermediary board are also provided near the end of the intermediary board 30 on the coaxial connector 10 side.
- a via hole 34 is provided, and the via hole 34 and the conductive casing 1 are electrically connected by two intermediary board connection lines 41 by ribbon bonding or the like.
- FIG. 4 is a partially cutaway plan view showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 3 of the present invention.
- the same reference numerals are given and duplicate description is omitted.
- a coplanar transmission line 35 is formed on the surface of the intermediary substrate 30 instead of the microstrip ply. Things.
- the coplanar transmission line 35 is formed on the surface of the intermediary substrate 30, the coaxial connector intermediary via hole 34 between the intermediary substrates is connected to the conductive casing 1.
- a coplanar transmission line is formed by the two connected coaxial connector intermediary substrate connection lines 41 and the core wire 11 of the coaxial connector 10, and electromagnetic waves are transmitted from the coplanar transmission line to the intermediary substrate 30.
- the electromagnetic wave can always propagate while maintaining the coplanar electromagnetic field transmission mode.
- a coplanar electromagnetic field transmission mode conversion which is more retarded than when a microstripline transmission line is formed on the surface of the intermediary substrate 30.
- the coplanar electromagnetic transmission mode is always maintained.
- Microstripline and coplanar electromagnetic field transmission mode conversion is necessary because they can propagate.When only a microstripline transmission line is formed on the surface of the intermediary substrate 30 This has the effect of suppressing the return loss from deteriorating. Therefore, the third embodiment has an effect that the return loss can be further improved as compared with the second embodiment.
- FIG. 5 shows the connection between the coaxial connector and the multilayer board according to Embodiment 4 of the present invention.
- FIG. 4 is a plan view showing the connection structure with a part cut away, and the same parts as those in FIG.
- the microstrip line transmission line 31 on the intermediate board 30 in the second embodiment is replaced with a coplanar transmission line 35.
- the microstrip line transmission line 21 on the multilayer substrate 20 in the second embodiment is replaced with a coplanar transmission line 25.
- a coplanar transmission line 25 is formed on the surface of the multilayer substrate 20 instead of the microstrip line transmission line 21 of the second embodiment. Regardless of whether the electromagnetic wave propagates from the multilayer substrate 20 to the coplanar transmission line 25 or vice versa, the electromagnetic wave always propagates while maintaining the coplanar electromagnetic wave transmission mode. Therefore, a microstrip line type and a coplanar type electromagnetic field transmission mode conversion were required, and a microstrip line type transmission line was formed on the surface of the multilayer substrate 20. This has the effect of preventing the return loss from deteriorating. Therefore, the fourth embodiment has an effect that the return loss can be further improved as compared with the second embodiment.
- Embodiment 5 Embodiment 5
- FIG. 6 is a partially cutaway plan view showing a connection structure between a coaxial connector and a multilayer board according to Embodiment 5 of the present invention.
- the same parts as in FIG. 3 are denoted by the same reference numerals. A duplicate description will be omitted.
- a coplanar transmission line 3 in place of the microstrip line transmission lines 31 and 21 in the second embodiment is provided on both surfaces of the mediating substrate 30 and the multilayer substrate 20. 5 and 2 5 O
- the coaxial connector the conductive via the intermediary substrate via hole 34 From the coplanar transmission line formed by the two conductive case-intermediate substrate connection lines 41 connected to the conductive case 1 and the core wire 11 of the coaxial connector 10 to the intermediate substrate 30 Regardless of whether a wave is propagated or an electromagnetic wave is propagated in the opposite direction, the wave can always propagate while maintaining the coplanar electromagnetic field transmission mode. Type and coplanar-type electromagnetic field transmission mode conversion is required, and if the return port can be more degraded than when a microstrip line transmission line is formed on the surface of the intermediary substrate 30 There is an effect.
- the electromagnetic wave propagates from the mediation substrate 30 to the coplanar transmission line 40 and the case where the electromagnetic wave propagates in the opposite direction, it always propagates while maintaining the coplanar electromagnetic field transmission mode. Therefore, there is an effect that deterioration of return loss can be suppressed as compared with the case where a microstrip line transmission line is formed. Furthermore, regardless of whether the electromagnetic wave propagates from the multilayer substrate 20 to the coplanar transmission line 40 or in the opposite direction, the coplanar electromagnetic field transmission mode is always maintained. When a microstrip line transmission line is formed on the surface of the multilayer substrate 20, the microstrip line type and coplanar type electromagnetic field transmission mode conversion is necessary because it can propagate. This has the effect of suppressing the return loss from deteriorating. Therefore, the fifth embodiment has an effect that the return loss can be further improved as compared with the second embodiment. Industrial applicability
- connection structure between a coaxial connector and a multilayer board according to the present invention can be used for a high-frequency circuit or the like of a communication device.
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- Coupling Device And Connection With Printed Circuit (AREA)
- Waveguide Connection Structure (AREA)
- Multi-Conductor Connections (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/537,416 US7471174B2 (en) | 2003-03-13 | 2004-03-12 | Connection structure for coaxial connector and multilayer substrate |
EP04720148A EP1603201A4 (en) | 2003-03-13 | 2004-03-12 | CONNECTION STRUCTURE FOR COAXIAL CONNECTOR AND MULTILAYER SUBSTRATE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-068205 | 2003-03-13 | ||
JP2003068205A JP4381701B2 (ja) | 2003-03-13 | 2003-03-13 | 同軸コネクタと多層基板との接続構造 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004082080A1 true WO2004082080A1 (ja) | 2004-09-23 |
Family
ID=32984582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/003297 WO2004082080A1 (ja) | 2003-03-13 | 2004-03-12 | 同軸コネクタと多層基板との接続構造 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7471174B2 (ja) |
EP (1) | EP1603201A4 (ja) |
JP (1) | JP4381701B2 (ja) |
WO (1) | WO2004082080A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008262989A (ja) | 2007-04-10 | 2008-10-30 | Toshiba Corp | 高周波回路基板 |
TWI341702B (en) * | 2008-07-08 | 2011-05-01 | Inventec Corp | Signal transmission structure |
WO2021002077A1 (ja) * | 2019-07-03 | 2021-01-07 | 株式会社 東芝 | 同軸マイクロストリップ線路変換回路 |
JP7113869B2 (ja) * | 2020-07-09 | 2022-08-05 | アンリツ株式会社 | 伝送線路変換構造及び同軸型エンドランチコネクタ |
CN112510328A (zh) * | 2020-12-14 | 2021-03-16 | 上海创远仪器技术股份有限公司 | 实现驻波匹配的多层板射频接头结构 |
JP7230089B2 (ja) * | 2021-03-26 | 2023-02-28 | アンリツ株式会社 | コプレーナ線路とコネクタとの接続構造及び接続方法、並びにそれを用いたサンプリングオシロスコープ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645102A (en) * | 1987-06-29 | 1989-01-10 | Nippon Telegraph & Telephone | Transmission line mode converter |
JPH09199912A (ja) * | 1996-01-23 | 1997-07-31 | Nippon Telegr & Teleph Corp <Ntt> | マイクロ波伝送線路変換器 |
JP2000241780A (ja) * | 1999-02-23 | 2000-09-08 | Ngk Insulators Ltd | 導波路光変調器 |
JP2003068906A (ja) * | 2001-08-27 | 2003-03-07 | Kyocera Corp | 半導体素子収納用パッケージおよび半導体装置 |
JP2003233043A (ja) * | 2002-02-08 | 2003-08-22 | Fujitsu Ltd | 電気光学効果により光位相を変化させる素子を搭載した光モジュール |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645102U (ja) | 1987-06-26 | 1989-01-12 | ||
JP2988346B2 (ja) | 1995-11-14 | 1999-12-13 | 日本電気株式会社 | パッケージrf入出力方式 |
JP2001177311A (ja) | 1999-12-21 | 2001-06-29 | Oki Electric Ind Co Ltd | 同軸コネクタと平面回路基板の接続構造 |
JP2002198129A (ja) | 2000-12-25 | 2002-07-12 | Nec Corp | 同軸−ストリップ導体変換器 |
US6734755B2 (en) * | 2002-05-16 | 2004-05-11 | Corning Incorporated | Broadband uniplanar coplanar transition |
-
2003
- 2003-03-13 JP JP2003068205A patent/JP4381701B2/ja not_active Expired - Lifetime
-
2004
- 2004-03-12 EP EP04720148A patent/EP1603201A4/en not_active Withdrawn
- 2004-03-12 US US10/537,416 patent/US7471174B2/en not_active Expired - Fee Related
- 2004-03-12 WO PCT/JP2004/003297 patent/WO2004082080A1/ja not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645102A (en) * | 1987-06-29 | 1989-01-10 | Nippon Telegraph & Telephone | Transmission line mode converter |
JPH09199912A (ja) * | 1996-01-23 | 1997-07-31 | Nippon Telegr & Teleph Corp <Ntt> | マイクロ波伝送線路変換器 |
JP2000241780A (ja) * | 1999-02-23 | 2000-09-08 | Ngk Insulators Ltd | 導波路光変調器 |
JP2003068906A (ja) * | 2001-08-27 | 2003-03-07 | Kyocera Corp | 半導体素子収納用パッケージおよび半導体装置 |
JP2003233043A (ja) * | 2002-02-08 | 2003-08-22 | Fujitsu Ltd | 電気光学効果により光位相を変化させる素子を搭載した光モジュール |
Non-Patent Citations (1)
Title |
---|
See also references of EP1603201A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP4381701B2 (ja) | 2009-12-09 |
EP1603201A4 (en) | 2007-11-21 |
US7471174B2 (en) | 2008-12-30 |
JP2004281120A (ja) | 2004-10-07 |
US20060049491A1 (en) | 2006-03-09 |
EP1603201A1 (en) | 2005-12-07 |
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