EP0834954A1 - Transition entre un guide d'ondes à crête et un circuit planaire - Google Patents
Transition entre un guide d'ondes à crête et un circuit planaire Download PDFInfo
- Publication number
- EP0834954A1 EP0834954A1 EP97401936A EP97401936A EP0834954A1 EP 0834954 A1 EP0834954 A1 EP 0834954A1 EP 97401936 A EP97401936 A EP 97401936A EP 97401936 A EP97401936 A EP 97401936A EP 0834954 A1 EP0834954 A1 EP 0834954A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transition
- circuit
- planar
- transition according
- waveguide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000007704 transition Effects 0.000 title claims description 54
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 3
- 241000397921 Turbellaria Species 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241001080024 Telles Species 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01P5/08—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
- H01P5/107—Hollow-waveguide/strip-line transitions
Definitions
- the field of the invention is that of transition elements microwave and more specifically concerns a transition between a waveguide crested and a planar circuit.
- a transition is a passive microwave element allowing to pass from one means of propagation to another. It is thus possible to transmit a signal microwave through a system comprising waveguides of shapes different, for example rectangular and circular, micro-ribbon lines, triplate lines and / or coaxial cables.
- a crest waveguide is a rectangular waveguide or circular including a metallic ridge.
- the planar circuit can be consisting of a micro-ribbon circuit, a coplanar circuit with or without a plane of ground or a suspended micro-ribbon circuit.
- Figure 1 is a sectional view of a transition between a waveguide and a microstrip line such as described in the book "Microwave transition design” by J.S. and S.M. Izadian, Artech House 1988, page 54, figure 4.1.
- a waveguide 10 comprises a cover 11 on which is fixed a peak forming a progressive impedance transformer 12. Ridge 12 is in the center of the waveguide 10 and its free end 13 is brought into contact, by the fitting of the cover 11, with a conductor 14 mounted on a substrate 15, the underside constitutes a ground plane. The conductor 14, the substrate 15 and the ground plane constitute a micro-ribbon line. This ensures continuity between the ridge 12 and the line 14.
- Figure 2 is a sectional view of such a transition.
- the conductive link is referenced 20 and shown in solid lines.
- the link 20 connects the end of the ridge 12 to the conductor 14 of the planar circuit, the contact points being referenced 21 and 22.
- the conductive link is referenced 23 and shown in broken lines.
- the link 23 has contact points referenced 24 and 25.
- connection 20 and 23 cannot be implemented industrially (for example example using a thermo-compression machine) because the contact points 20 and 22 on the one hand and 24 and 25 on the other hand are not accessible according to directions identical.
- a thermo-compression intended to achieve the point of contact 20 must be able to access according to the direction 26 whereas for the realization of the point of contact 22, it must be able access in direction 27. This would require providing two openings allowing the access and a reversal of the transition between the two thermo-compressions.
- the directions of access of the thermo-compression machine are 27 and 28 and the same problem arises.
- the present invention aims in particular to overcome these disadvantages.
- one of the objectives of the invention is to provide a transition between a crest waveguide and a planar circuit ensuring excellent impedance matching over a wide frequency band and while being easily industrializable.
- a transition between a peak waveguide and a planar circuit on which one conductor is provided comprising at least one connection conductor connecting the end of the ridge to the conductor between two points of contact, the contact points being opposite the same access provided for the setting in place of the conductive link.
- the contact points can then be made using a machine since only one direction of access is necessary for the establishment of the link conductive.
- Figure 3 is a sectional view of an embodiment of a transition according to the present invention.
- planar circuit is referenced 30, the crest (here in steps to perform an impedance transformation) is referenced 31, and the conductive link, connecting the end of the ridge 31 to the conductor provided on the planar circuit 30, is referenced 32.
- the contact points 33 and 34 of the link 32 on the ridge 31 and the planar circuit 30 are opposite the same access provided for setting up place of the conductive link.
- the contact points 33 and 34 can be produced by a thermo-compression machine before fitting the cover referenced 36.
- Figure 3 shows three guide sections.
- section A a recess is provided under the upper part of the end of the ridge 31 in order to allow a transformation of the field lines into a cable type propagation mode coaxial.
- Section B corresponds to a withdrawal of the end of the ridge 31 by relative to the wall on which the planar circuit 30 rests. function to allow looping of the H field.
- section C can advantageously be optimized to ensure compensation capacitive of the transition.
- the planar circuit 30 is preferably housed in a guide section 37 under the cutoff, so as to avoid the propagation of the modes guided by orders superiors.
- the width of the guide section 37 in which is placed the planar circuit 30 must be sufficiently small.
- the planar circuit 30 is preferably housed in a recess ensuring its good positioning.
- This hermeticity window 38 made of quartz, alumina or cordierite, has the function of protecting the planar circuit 30 from certain gases, in particular from hydrogen, and moisture. The transition is in this case confined in a neutral atmosphere and integration is therefore sealed.
- the end of the ridge 31 is advantageously provided with two pins 40, 41 ensuring a capacitive compensation of the conductive link 32, such bond being of the selfic type.
- the planar circuit 30 can also have two pins 42, 43 performing the same function.
- Connection 32 can also be carried out using several conductors in parallel to reduce its impedance.
- the conductor of the planar circuit 30 is referenced 44.
- the invention applies to any planar circuit consisting by a support of a conductor, whether it is in micro-ribbon technology (plan of mass under the substrate), in coplanar technology (share ground planes and the central conductor), in coplanar technology with ground plane or in suspended micro-ribbon technology.
- the invention applies not only to ridges with variations dimensions for performing an impedance matching function, but also at ridges whose upper end is constantly at the same distance from the bottom on which this crest rests.
- the invention applies in particular to guides WR22 and WR19, in especially in the 40-60 GHz band. It also applies to guides circular.
Landscapes
- Waveguides (AREA)
- Waveguide Connection Structure (AREA)
Abstract
Description
- une transition à constantes localisées entre un guide d'ondes et un circuit planaire a une dimension inférieure à la longueur d'onde guidée. Elle est habituellement constituée par une sonde pénétrant dans le guide d'ondes, perpendiculairement à la direction d'extension de ce guide d'ondes, et raccordée au circuit planaire. La sonde est constituée par l'âme du câble coaxial ou par une ligne métallisée gravée sur un substrat dont la face opposée est localement démétallisée. L'inconvénient de ce type de transition est qu'elle nécessite un changement de direction de 90° du signal hyperfréquence et l'encombrement dû à la transition est alors important. Ceci est valable pour les transitions plan E et plan H. De plus, de telles transitions sont difficiles à mettre en oeuvre et ne présentent pas une large bande d'adaptation.
- une transition à constantes réparties a une dimension supérieure ou égale à la longueur d'onde guidée. Elle est habituellement constituée par un transformateur d'impédance en escalier ou progressive. L'extrémité du transformateur d'impédance située du côté de la transition présente une section en crête (voir Fig.5). Ce type de transition présente une largeur de bande plus importante. On peut par exemple se référer à la demande de brevet français n°2.552.586 appliquée à une transition guide d'ondes - ligne coaxiale ou ligne micro-ruban.
- la figure 1 représente une vue en coupe d'une transition entre un guide d'ondes et une ligne micro-ruban de type connu ;
- la figure 2 est une vue en coupe d'une transition permettant de remédier aux problèmes de dilations mécaniques posés par la transition de la figure 1 ;
- la figure 3 est une vue en coupe d'un mode de réalisation d'une transition selon la présente invention ;
- la figure 4 est une vue en coupe selon IV-IV de la figure 3 ;
- la figure 5 est une vue en coupe selon V-V de la figure 4.
Claims (11)
- Transition entre un guide d'ondes à crête (10) et un circuit planaire (30) sur lequel est prévu un conducteur (44), ladite transition comportant au moins une liaison conductrice (32) reliant l'extrémité de ladite crête audit conducteur (44) entre deux points de contact (33, 34),
caractérisée en ce que lesdits points de contact (33, 34) sont en regard d'un même accès (35) prévu pour la mise en place de ladite liaison conductrice (32). - Transition selon la revendication 1, caractérisée en ce que ledit circuit planaire (30) est un circuit micro-ruban.
- Transition selon la revendication 1, caractérisée en ce que ledit circuit planaire (30) est un circuit coplanaire.
- Transition selon la revendication 1, caractérisée en ce que ledit circuit planaire (30) est un circuit coplanaire avec plan de masse.
- Transition selon la revendication 1, caractérisée en ce que ledit circuit planaire (30) est un circuit micro-ruban suspendu.
- Transition selon l'une des revendications 1 à 5, caractérisée en ce que ledit circuit planaire est placé dans une section (37) sous la coupure dudit guide d'ondes (10).
- Transition selon l'une des revendications 1 à 6, caractérisée en ce que lesdits points de contact (33, 34) sont réalisés par thermo-compression.
- Transition selon l'une des revendication 1 à 7, caractérisée en ce qu'elle comporte une fenêtre d'herméticité (38) placée dans ledit guide d'ondes (10).
- Transition selon l'une des revendications 1 à 8, caractérisée en ce que ladite crête forme un transformateur d'impédance (31).
- Transition selon la revendication 9, caractérisée en ce que ladite crête est en retrait (B) par rapport à la paroi sur laquelle repose ledit circuit planaire (30).
- Transition selon l'une des revendications 9 et 10, caractérisée en ce que ladite crête présente un évidement (A).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9611941A FR2754108B1 (fr) | 1996-10-01 | 1996-10-01 | Transition entre un guide d'ondes a crete et un circuit planaire |
FR9611941 | 1996-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0834954A1 true EP0834954A1 (fr) | 1998-04-08 |
Family
ID=9496229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97401936A Withdrawn EP0834954A1 (fr) | 1996-10-01 | 1997-08-14 | Transition entre un guide d'ondes à crête et un circuit planaire |
Country Status (6)
Country | Link |
---|---|
US (1) | US5969580A (fr) |
EP (1) | EP0834954A1 (fr) |
JP (1) | JPH10126116A (fr) |
CA (1) | CA2215480A1 (fr) |
FR (1) | FR2754108B1 (fr) |
NO (1) | NO974484L (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2201679A1 (fr) * | 2007-09-11 | 2010-06-30 | ViaSat, Inc. | Interface à faibles pertes |
US8598966B2 (en) | 2008-03-13 | 2013-12-03 | Viasat, Inc. | Multi-level power amplification system |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19902240A1 (de) * | 1999-01-21 | 2000-07-27 | Bosch Gmbh Robert | Schaltungsanordnung |
US6077766A (en) * | 1999-06-25 | 2000-06-20 | International Business Machines Corporation | Variable thickness pads on a substrate surface |
WO2003090313A1 (fr) * | 2002-04-19 | 2003-10-30 | Roadeye Flr General Partnership | Concept de systeme rf pour radar de vehicules comprenant plusieurs faisceaux |
EP1532462A4 (fr) * | 2002-06-06 | 2005-12-21 | Roadeye Flr General Partnershi | Systeme radar frontal |
FI20022257A (fi) * | 2002-12-20 | 2004-06-21 | Elektrobit Oy | Menetelmä ja järjestely radiolaitteen testaamiseksi |
US7068121B2 (en) * | 2003-06-30 | 2006-06-27 | Tyco Technology Resources | Apparatus for signal transitioning from a device to a waveguide |
US7855612B2 (en) * | 2007-10-18 | 2010-12-21 | Viasat, Inc. | Direct coaxial interface for circuits |
US7625131B2 (en) * | 2007-05-02 | 2009-12-01 | Viasat, Inc. | Interface for waveguide pin launch |
US7812686B2 (en) * | 2008-02-28 | 2010-10-12 | Viasat, Inc. | Adjustable low-loss interface |
US7782156B2 (en) * | 2007-09-11 | 2010-08-24 | Viasat, Inc. | Low-loss interface |
DE102013108434B4 (de) * | 2013-08-05 | 2020-06-25 | Finetek Co., Ltd. | Hornantennenvorrichtung und stufenförmige Signaleinspeisevorrichtung hierfür |
US11047951B2 (en) | 2015-12-17 | 2021-06-29 | Waymo Llc | Surface mount assembled waveguide transition |
KR102674456B1 (ko) | 2017-01-26 | 2024-06-13 | 주식회사 케이엠더블유 | 전송선로-도파관 전이 장치 |
JP6839122B2 (ja) | 2018-03-19 | 2021-03-03 | 日本電信電話株式会社 | 高周波接続構造 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59146201A (ja) * | 1983-02-08 | 1984-08-22 | Yamagata Daigaku | 不均型ストリップライン整合器 |
JPS59212002A (ja) * | 1983-05-17 | 1984-11-30 | Mitsubishi Electric Corp | マイクロストリツプ線路と立体回路との接続装置 |
EP0169048A2 (fr) * | 1984-07-20 | 1986-01-22 | Nec Corporation | Commutateur ultra-haute fréquence |
US4636753A (en) * | 1984-05-15 | 1987-01-13 | Communications Satellite Corporation | General technique for the integration of MIC/MMIC'S with waveguides |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5567803A (en) * | 1978-11-14 | 1980-05-22 | Nec Corp | Programmable control circuit |
JPH0326643Y2 (fr) * | 1985-09-30 | 1991-06-10 | ||
US5361049A (en) * | 1986-04-14 | 1994-11-01 | The United States Of America As Represented By The Secretary Of The Navy | Transition from double-ridge waveguide to suspended substrate |
US4754239A (en) * | 1986-12-19 | 1988-06-28 | The United States Of America As Represented By The Secretary Of The Air Force | Waveguide to stripline transition assembly |
JPH01202001A (ja) * | 1988-02-08 | 1989-08-15 | Fujitsu Ltd | 同軸導波管変換器 |
US5262739A (en) * | 1989-05-16 | 1993-11-16 | Cornell Research Foundation, Inc. | Waveguide adaptors |
JPH03167902A (ja) * | 1989-11-28 | 1991-07-19 | Toshiba Corp | リッジ導波管―マイクロストリップ線路変換器 |
-
1996
- 1996-10-01 FR FR9611941A patent/FR2754108B1/fr not_active Expired - Fee Related
-
1997
- 1997-08-14 EP EP97401936A patent/EP0834954A1/fr not_active Withdrawn
- 1997-09-29 NO NO974484A patent/NO974484L/no not_active Application Discontinuation
- 1997-09-30 US US08/941,672 patent/US5969580A/en not_active Expired - Fee Related
- 1997-09-30 CA CA002215480A patent/CA2215480A1/fr not_active Abandoned
- 1997-10-01 JP JP9269015A patent/JPH10126116A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59146201A (ja) * | 1983-02-08 | 1984-08-22 | Yamagata Daigaku | 不均型ストリップライン整合器 |
JPS59212002A (ja) * | 1983-05-17 | 1984-11-30 | Mitsubishi Electric Corp | マイクロストリツプ線路と立体回路との接続装置 |
US4636753A (en) * | 1984-05-15 | 1987-01-13 | Communications Satellite Corporation | General technique for the integration of MIC/MMIC'S with waveguides |
EP0169048A2 (fr) * | 1984-07-20 | 1986-01-22 | Nec Corporation | Commutateur ultra-haute fréquence |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 8, no. 277 (E - 285)<1714> 18 December 1984 (1984-12-18) * |
PATENT ABSTRACTS OF JAPAN vol. 9, no. 81 (E - 307)<1804> 10 April 1985 (1985-04-10) * |
WILLIAMS D A: "MILLIMETER-WAVE COMPONENTS AND SUBSYSTEMS BUILT USING MICROSTRIP TECHNOLOGY", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 39, no. 5, 1 May 1991 (1991-05-01), pages 768 - 774, XP000201471 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2201679A1 (fr) * | 2007-09-11 | 2010-06-30 | ViaSat, Inc. | Interface à faibles pertes |
EP2201679B1 (fr) * | 2007-09-11 | 2019-02-20 | ViaSat, Inc. | Interface à faibles pertes |
US8598966B2 (en) | 2008-03-13 | 2013-12-03 | Viasat, Inc. | Multi-level power amplification system |
US9368854B2 (en) | 2008-03-13 | 2016-06-14 | Viasat, Inc. | Multi-level power amplification system |
Also Published As
Publication number | Publication date |
---|---|
US5969580A (en) | 1999-10-19 |
FR2754108B1 (fr) | 1998-11-13 |
NO974484L (no) | 1998-04-02 |
CA2215480A1 (fr) | 1998-04-01 |
NO974484D0 (no) | 1997-09-29 |
JPH10126116A (ja) | 1998-05-15 |
FR2754108A1 (fr) | 1998-04-03 |
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