EP2047564B1 - Dispositif de transduction orthomode à compacité optimisée dans le plan de maille, pour une antenne - Google Patents
Dispositif de transduction orthomode à compacité optimisée dans le plan de maille, pour une antenne Download PDFInfo
- Publication number
- EP2047564B1 EP2047564B1 EP07788011A EP07788011A EP2047564B1 EP 2047564 B1 EP2047564 B1 EP 2047564B1 EP 07788011 A EP07788011 A EP 07788011A EP 07788011 A EP07788011 A EP 07788011A EP 2047564 B1 EP2047564 B1 EP 2047564B1
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- EP
- European Patent Office
- Prior art keywords
- auxiliary
- guide
- parallel
- main
- axis
- Prior art date
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- 230000026683 transduction Effects 0.000 title claims description 14
- 238000010361 transduction Methods 0.000 title claims description 14
- 230000008878 coupling Effects 0.000 claims abstract description 45
- 238000010168 coupling process Methods 0.000 claims abstract description 45
- 238000005859 coupling reaction Methods 0.000 claims abstract description 45
- 230000005855 radiation Effects 0.000 claims description 17
- 230000010287 polarization Effects 0.000 abstract description 19
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002463 transducing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/025—Multimode horn antennas; Horns using higher mode of propagation
- H01Q13/0258—Orthomode horns
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
Definitions
- the invention relates to the field of transmitting and / or receiving antennas, possibly of network type, and more particularly the orthomode transducing devices (or “transducers”) that equip such antennas.
- antenna is understood to mean both a single elementary source of radiation coupled to an orthomode transducer device and a network antenna.
- network antenna is understood to mean an antenna capable of operating in transmission and / or reception and comprising a network of elementary radiation sources and control means capable of controlling by means of active chain (s). the amplitude and / or the phase of the radiofrequency signals to be transmitted (or in the opposite direction, received from the space in the form of waves) by the elementary sources of radiation according to a chosen diagram. Consequently, it will be a question of so-called direct radiation network antennas (often designated by their acronym DRA), active or more rarely passive, than active or passive network type sources, placed in front of a reflector system ( s).
- DRA direct radiation network antennas
- orthomode transducer is understood herein to be what the person skilled in the art knows by the acronym OMT (for "OrthoMode Transducer”), that is to say a device intended to be connected to a source.
- elementary radiation such as for example a horn, in order to supply it (in transmission) or to be supplied (in reception) selectively with either a first electromagnetic mode having a first polarization, or with a second electromagnetic mode having a second polarization orthogonal to the first.
- the first and second polarizations are generally linear (horizontal (H) and vertical (V)). But, the circular polarization is also achievable by adding additional components to create the appropriate phase states.
- the space available for implanting the radiating elements depends directly on the dimensions of the mesh (or elementary pattern) of the network, which are fixed by operational requirements (target frequency band, performance optimization, reduction of lobe losses (in the case of a DRA), sampling of the focal task (in the case of a reflector antenna (s) and network type source)).
- This type of OMJ comprises a main waveguide, of the aforementioned type, with a square cross section and intended to be coupled, via a series coupling slot, to a first auxiliary guide in series (adapted to the propagation of the first electromagnetic mode), and a second auxiliary guide of rectangular transverse section, adapted to the propagation of the second electromagnetic mode, coupled to the main guide via a parallel coupling slot and provided with a first end intended to be coupled to a parallel access adapted to the second mode.
- the parallel coupling slot is defined between a side wall of the main guide and a side wall of the second auxiliary guide (which extends to a height equal to that of the smaller side of its rectangular cross section), so that the second auxiliary guide extends in the plane of the meshes over a distance equal to that of the largest side of its rectangular transverse section.
- the OMJ then has a footprint in the mesh plane typically of the order of 2 ⁇ , which is still too high.
- the provision of access then makes the architecture of the complete antenna much more complex, and has the effect of increasing the mass and bulk balances.
- the invention proposes to place the second auxiliary guide above the main guide (possibly with a slight lateral shift), and not next to it, and then defining each coupling slot in parallel in a position transverse to the main axis, the first and second auxiliary guides having perpendicular orientations therebetween.
- the device according to the invention may comprise other characteristics defined by the dependent claims.
- the invention also provides an antenna equipped with an orthomode transducer device of the type shown above and coupled to a single elementary source of radiation.
- the invention also proposes a network antenna equipped with a multiplicity of orthomode transducing devices of the type of the one presented above and respectively coupled to elementary sources of radiation arranged in a network having a chosen mesh, for example of the hexagonal type.
- the object of the invention is to allow the realization of orthomode transducers with optimized compactness, preferably without a decoupling blade (or septum), for a transmitting and / or receiving antenna (possibly of network type).
- the antenna is a network antenna of the type called direct radiation (or DRA), and for example active. It therefore comprises a network of elementary sources of radiation, such as, for example, cornets, each coupled to an orthomode transducer D, according to the invention, and control means capable of controlling by means of active chain (s) ( s) the amplitude and / or phase of the radio frequency signals to be transmitted (or in the opposite direction, which are received from the space in the form of waves) by the elementary sources of radiation according to a chosen diagram.
- DRA direct radiation
- control means capable of controlling by means of active chain (s) ( s) the amplitude and / or phase of the radio frequency signals to be transmitted (or in the opposite direction, which are received from the space in the form of waves) by the elementary sources of radiation according to a chosen diagram.
- the invention is not limited to this type of antenna.
- a reflector system such as for example antennas of the FAFR type, active or passive, reconfigurable or no, and secondly, a single elemental source of radiation coupled to a device according to the invention.
- the network antenna is embedded in a Ka-band multimedia telecommunications satellite (18.2 GHz at 20.2 GHz in transmit or 27.5 GHz at 30 GHz in reception), or in Ku band (10.7 GHz at 12.75 GHz in transmission or 13.75 GHz at 14.5 GHz in reception).
- the proposed device remains applicable to any other frequency band.
- the two radiated polarizations can be in the same frequency band, or in different frequency bands.
- an orthomode transducer device D comprises at least one main waveguide (or main body) GP, coupled to a circular access AC, a first auxiliary waveguide GA1, coupled in series with the main waveguide GP and with a serial access AS (materialized on the figure 4 ), and a second auxiliary waveguide GA2, coupled in parallel with the main guide GP and a parallel access AP (shown on the figure 4 ).
- the main guide GP is a parallelepiped whose cross section (in the XZ plane) is for example rectangular or square. But it is also possible that the main guide GP is circular in shape, although this solution is not that currently preferred. It extends in a longitudinal direction (Y) which also defines the main radio axis of the device D. Its dimensions are chosen so as to allow propagation along the main (radio) axis Y of radiofrequency (RF) signals according to first and second electromagnetic modes respectively having first P1 and second P2 polarizations which are orthogonal to each other.
- Y longitudinal direction
- RF radiofrequency
- the first and second electromagnetic modes are respectively TE10 (fundamental mode) and TE01.
- the first P1 and second P2 polarizations are of linear type, P1 being for example vertical (V) and horizontal P2 (H), or the reverse.
- P1 being for example vertical (V) and horizontal P2 (H), or the reverse.
- the invention also makes it possible to carry out circular polarizations by adding appropriate components in order to obtain the necessary electrical phase conditions (for example, by adding hybrid couplers on the two rectangular access guides, or well a polarizer on the circular main guide).
- the main guide GP comprises two "lateral" walls PL (in the YZ plane), a “lower” wall (in the XY plane) and an “upper” wall PS (in the XY plane).
- the concepts "lateral”, “lower” and “upper” must be understood here with reference to the figures, an upper wall PS of a guide being therefore placed above a lower wall of the same guide and perpendicular to two walls.
- Lateral PL of said guide are only used to facilitate the description and do not concern the final orientation of the walls of a main guide GP or auxiliary GA1 or GA2 once the device D integrated in an antenna (here network type for example).
- These side walls PL, lower and upper PS internally delimit a main cavity provided with first and second ends.
- the first end is coupled to the circular access AC which is adapted to the first and second modes (presenting respectively the first P1 and second P2 polarizations) and which is intended to be connected to an elementary source of radiation.
- a so-called "serial" coupling slot FSP is defined at the second end. It is preferably of rather rectangular shape, its long side being for example parallel to the Z axis.
- the upper wall PS, of the main guide GP comprises at least one aperture of selected shape constituting part of a so-called "parallel" coupling slot FPL or FPT.
- the first auxiliary (wave) waveguide GA1 has a parallelepipedal shape of transverse section (in the XZ plane) of rectangular shape, for example (but other shapes may be envisaged, and in particular circular or elliptical). It extends in a longitudinal direction (Y) which also defines its (first) auxiliary radio axis. It therefore extends, in a way, the main guide GP along the Y axis. Its dimensions are chosen so as to allow the propagation along the first (radio) auxiliary axis of radiofrequency (RF) signals according to the first electromagnetic mode presenting the first polarization P1.
- RF radiofrequency
- the first auxiliary guide GA1 comprises two "lateral" walls (in the YZ plane), a “lower” wall (in the XY plane) and an “upper” wall (in the XY plane). These lower and upper side walls internally delimit a first auxiliary cavity provided with first and second ends.
- the first end is serially coupled to the second end of the main guide GP via the FSP series coupling slot.
- the second end is coupled to the AS serial access which is adapted to the first mode having the first polarization P1 and is defined in the XZ plane.
- the AS serial access has a rectangular shape.
- the AS series access has a large GC1 side parallel to the X axis and a small PC1 side parallel to the Z axis.
- the first auxiliary guide GA1 may not be a pure parallelepiped. It can, as illustrated, be partly composed of at least two parts of parallelepipedal shape of sections (in the plane perpendicular to the Y direction) and of selected lengths (in the Y direction), so as to achieve a change transverse dimensions of the guide (step transformer for impedance matching) in order to optimize electrical performance.
- the second auxiliary (wave) waveguide GA2 has a parallelepipedal shape of transverse section (in the XZ plane) of rectangular shape, for example. It extends in a longitudinal direction (Y) which also defines its (second) auxiliary radio axis. Its dimensions are chosen so as to allow propagation along the second (radio) auxiliary axis of radiofrequency (RF) signals according to the second electromagnetic mode having the second polarization P2.
- the second auxiliary guide GA2 comprises two "lateral" walls (in the YZ plane), a “lower” PI wall (in the XY plane) and an “upper” wall (in the XY plane). These lateral walls, lower P1 and upper internally delimit a second auxiliary cavity provided with first and second ends.
- the first end is coupled to the parallel access AP which is adapted to the second mode having the second polarization P2 and is defined in the XZ plane.
- the second end is preferably terminated by a terminal wall PT (in the XZ plane) so as to define in the second auxiliary cavity an electrical short circuit.
- the lower wall PI of the second auxiliary guide GA2 comprises at least one opening of the same shape chosen as that defined in the upper wall PS of the main guide GP and constituting a complementary part of a parallel coupling slot FPL or FPT.
- the parallel access AP has a rectangular shape.
- AP parallel access has a large GC2 side parallel to the X axis and a small PC2 side parallel to the Z axis.
- the second auxiliary guide GA2 may not be a pure parallelepiped. It can, as illustrated, consist of at least two parts of parallelepipedal shape, but having different dimensions (sections in the plane perpendicular to the Y direction, and lengths in the Y direction), to achieve a transformer to steps to optimize electrical performance.
- the main guide GP may not be a pure parallelepiped. It may consist of at least two different parts, one of parallelepiped shape, and the other of circular cylindrical shape, for impedance matching.
- the first GA1 and second GA2 auxiliary guides are placed one above the other so that their first and second auxiliary radio axes are parallel to the main radio axis of the main guide GP.
- the second auxiliary guide GA2 is therefore also at least partly placed above the upper wall PS of the main guide GP.
- main guide GP and its circular access AC
- first GA1 and second GA2 auxiliary guides and their serial accesses AS and parallel AP
- main guide GP and the first GA1 and second GA2 auxiliary guides can be made in two or three parts assembled to each other. But, it is also possible that they constitute a one-piece assembly according to the manufacturing method used. In this case, it is clear that the upper walls of the main guide GP and the first auxiliary guide GA1 merge with the lower wall PI of the second auxiliary guide GA2, although they contribute to defining a portion of the main and auxiliary cavities.
- each FPL or FPT parallel coupling slot is defined between the upper wall PS of the main guide GP and the lower wall PI of the second auxiliary guide GA2.
- a parallel coupling slot FPL or FPT may be constituted only by the two apertures that correspond in the upper wall PS of the main guide GP and in the lower wall PI of the second auxiliary guide GA2.
- a parallel coupling slot FPL or FPT may also be constituted by two corresponding openings and a connecting element providing the guiding function between these two openings (this solution is currently not the preferred because we try to limit as much as possible the thickness (or length) of the connecting element).
- Each FPL or FPT parallel coupling slot is oriented in a chosen manner with respect to the main radiofrequency axis for two reasons.
- the orientation must first allow coupling of the main cavity (defined by the main guide GP) with the second auxiliary cavity (defined by the second auxiliary guide GA2) so that the second mode (having the second polarization P2) is selectively transferred either from the main guide GP to the second auxiliary guide GA2 in reception (Rx), or from the second auxiliary guide GA2 to the main guide GP in transmission (Tx).
- the orientation must constrain the first mode (presenting the first polarization PI) to propagate either from the main guide GP to the first auxiliary guide GA1 in reception (Rx), or from the first auxiliary guide GA1 to the main guide GP in transmission (Tx).
- the coupling of the second mode is imposed either by the length of the parallel coupling slot FPL and by its lateral offset (in the X direction) with respect to the second auxiliary radiofrequency axis of the second auxiliary guide GA2, in the case of a slot longitudinal rectangle whose long side is parallel to the Y direction, either by the length (s) and / or the number of FPT parallel coupling slots and / or the interfering distance and / or the center position of each slot parallel coupling FPT with respect to the second auxiliary RF axis, in the case of a transverse rectangular slot whose long side is parallel to the X direction.
- the distance between the short-circuit, placed on the end wall PT of the second auxiliary guide GA2, and the closest FPL or FPT coupling slot may also be part of the adjustment parameters.
- each FPL or FPT parallel coupling slot makes it possible to minimize the excitation of the first polarization P1, or in other words to set the rejection level of the first polarization P1.
- This avoids the use of decoupling blades (or septum), although this is also possible here.
- a width of between approximately ⁇ / 10 and ⁇ / 20 is chosen, where ⁇ is the operating wavelength of the device D.
- each FPL or FPT parallel coupling slot is chosen so as to optimize the coupling with the current lines which correspond to the second mode and which are produced on the upper wall PS of the main guide GP and on the lower wall PI of the second auxiliary guide GA2.
- each FPL or FPT parallel coupling slot depends on the compactness sought for the device D in the X direction. Two classes of embodiment can be envisaged.
- the first class includes the embodiments in which each parallel coupling slot FPL is rectangular "longitudinal" (long side (or length) parallel to the Y direction) and placed above and parallel to the main axis of the main guide GP and at the same time shifted laterally (in the X direction) relative to the second auxiliary radiofrequency axis of the second auxiliary guide GA2.
- each FPT parallel coupling slot is rectangular "transverse" (large side (or length) parallel to the X direction) and centered (but can also be shifted (or off-center)) relative to to the main axis of the main guide GP and the second auxiliary axis of the second auxiliary guide GA2 (the main axis and the second auxiliary axis are then placed one above the other).
- the term "centered position" is understood here to mean the fact of having the same transversal extension on both sides of the second auxiliary axis.
- the positioning of the FPT parallel coupling slots relative to the second auxiliary RF axis at least partially defines the power they transmit. The invention is limited to the case decendre.
- the first class corresponds to the example that is illustrated on the Figures 1 to 4 .
- a single rectangular and longitudinal FPL parallel coupling slot has been shown, but we can consider using several (at least two) put one after the other and having the same orientation along the Y axis. In this case, the lengths of the slots are not necessarily identical.
- the longitudinal slot FPL opens into an area of the lower wall PI of the second auxiliary guide GA2 which is located near the side wall of the latter. Therefore the coupling is optimal.
- the greater the lateral offset of the longitudinal slot FPL relative to the second auxiliary axis the greater the second auxiliary guide GA2 is offset laterally relative to the main guide GP and the first auxiliary guide GA1. This lateral offset of the second auxiliary guide GA2 is at most equal to half its width (long side) GC2.
- the transverse bulk (in the X direction) of the device D is at most equal to the sum of the width GC1 of the main guide GP and half the width GC2 of the second auxiliary guide GA2, namely GC1 + GC2 / 2.
- the first GA1 and second GA2 auxiliary guides and the AS and parallel AP series accesses have rectangular cross sections whose long sides are all parallel
- the first GA1 and second GA2 auxiliary guides and the AS and parallel AP serial ports all have the same "transverse" orientation (long sides GC1, GC2 in the X direction).
- the second class corresponds to the exemplary embodiment which is illustrated on the Figures 5 to 8 .
- three FPT parallel coupling slots of identical and transverse rectangular shapes have been shown, but it is conceivable to use one or two or even more than three in parallel.
- transverse slots FPT The greater the number of transverse slots FPT and the greater the length (in the X direction) of each transverse slot FPT, the more the coupling of the current lines of the second mode will have. tend to be effective.
- the three transverse slots FPT are of the same length and equidistant two by two. But, this is not an obligation (the inter-slot distance can indeed vary). It will be noted that the lengths of the slots may also be adjustment parameters.
- the second auxiliary guide GA2 is thus integrally or almost completely placed above the main guide GP and the first auxiliary guide GA1. Therefore, the transverse bulk (in the X direction) of the device D is equal to that of the auxiliary or main guide which has the largest transverse extension. At least the transverse bulk of the device D is therefore the lowest for the second class of embodiment.
- the first auxiliary guide GA1 and its AS series access have rectangular transverse sections whose long sides GC1 are parallel to the direction Z, while the second auxiliary guide GA2 and its parallel access AP have rectangular cross sections whose long sides GC2 are parallel to the direction X. Therefore the first GA1 and second GA2 auxiliary guides have different orientations, as the accesses AS series and parallel AP.
- the orthomode transducer devices D according to the invention can be arranged differently relative to each other so as to constitute other types of mesh (or elementary pattern) Mi of a network of a network antenna, for example triangular, rectangular, or any (that is to say a pattern not necessarily periodic).
- the main guide GP may be coupled in series to a series auxiliary guide GA1 and in parallel with one, two, three or four auxiliary guides in parallel GA2.
- the parallel auxiliary guides GA2 are coupled to the main guide GP at its different side walls (parallel to the XY and YZ planes). This may allow the device D to operate in a number of frequency bands between 1 and 5.
- these different auxiliary guides in parallel GA2 do not necessarily have their coupling slots all located at the same side along the axis Y.
- the transverse section of the cavity of the main guide GP may also vary along the Y axis to take into account the different positions of said coupling slots.
- the device according to the invention can also be used when the congestion constraint is not the major constraint, as is the case, for example, in single or isolated sources requiring a bipolarization, in single or dual frequency. frequencies.
- the invention is not limited to embodiments of orthomode transducer and antenna (possibly network type) described above, only by way of example, but it encompasses all variants that may be considered by humans of the art in the context of the claims below.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Details Of Aerials (AREA)
- Road Signs Or Road Markings (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0653180A FR2904478B1 (fr) | 2006-07-28 | 2006-07-28 | Dispositif de transduction orthomode a compacite optimisee dans le plan de maille, pour une antenne |
PCT/EP2007/057797 WO2008012369A1 (fr) | 2006-07-28 | 2007-07-27 | Dispositif de transduction orthomode à compacité optimisée dans le plan de maille, pour une antenne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2047564A1 EP2047564A1 (fr) | 2009-04-15 |
EP2047564B1 true EP2047564B1 (fr) | 2010-10-06 |
Family
ID=37835390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07788011A Active EP2047564B1 (fr) | 2006-07-28 | 2007-07-27 | Dispositif de transduction orthomode à compacité optimisée dans le plan de maille, pour une antenne |
Country Status (12)
Country | Link |
---|---|
US (1) | US7944324B2 (ja) |
EP (1) | EP2047564B1 (ja) |
JP (1) | JP5292636B2 (ja) |
KR (1) | KR20090035009A (ja) |
CN (1) | CN101512837B (ja) |
AT (1) | ATE484090T1 (ja) |
CA (1) | CA2659345C (ja) |
DE (1) | DE602007009689D1 (ja) |
ES (1) | ES2350961T3 (ja) |
FR (1) | FR2904478B1 (ja) |
RU (1) | RU2422956C2 (ja) |
WO (1) | WO2008012369A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2939971B1 (fr) | 2008-12-16 | 2011-02-11 | Thales Sa | Ensemble d'excitation compact pour la generation d'une polarisation circulaire dans une antenne et procede d'elaboration d'un tel ensemble d'excitation |
EP2330681A1 (en) | 2009-12-07 | 2011-06-08 | European Space Agency | Compact OMT device |
CA2801948C (en) | 2010-06-08 | 2017-08-08 | National Research Council Of Canada | Orthomode transducer |
ITMI20112186A1 (it) * | 2011-11-30 | 2013-05-31 | Siae Microelettronica Spa | Combinatore ortomodale a porte e segnali monomodali di ingresso/uscita paralleli |
US9203128B2 (en) | 2012-10-16 | 2015-12-01 | Honeywell International Inc. | Compact twist for connecting orthogonal waveguides |
US9105952B2 (en) | 2012-10-17 | 2015-08-11 | Honeywell International Inc. | Waveguide-configuration adapters |
US9406987B2 (en) | 2013-07-23 | 2016-08-02 | Honeywell International Inc. | Twist for connecting orthogonal waveguides in a single housing structure |
CN105071006B (zh) * | 2015-08-31 | 2017-09-29 | 北京遥测技术研究所 | 一种新型正交模耦合器 |
KR101580819B1 (ko) * | 2015-10-27 | 2015-12-30 | 국방과학연구소 | 2중 주파수 대역 이종 편파 동시 사용 안테나 장치 및 급전부 조립체 |
US10269189B2 (en) | 2017-07-05 | 2019-04-23 | Goodrich Corporation | Dual-stage, separated gas/fluid shock strut servicing monitoring system using one pressure/temperature sensor |
US10269188B2 (en) | 2017-07-05 | 2019-04-23 | Goodrich Corporation | Dual-stage, separated gas/fluid shock strut servicing monitoring system using two pressure/temperature sensors |
US10272993B2 (en) | 2017-07-05 | 2019-04-30 | Goodrich Corporation | Dual-stage, stroke-activated, mixed fluid gas shock strut servicing monitoring system |
EP3447839A1 (en) * | 2017-08-21 | 2019-02-27 | Nokia Shanghai Bell Co., Ltd. | Method and apparatus for electromagnetic signal waveguides |
WO2019072571A1 (en) * | 2017-10-09 | 2019-04-18 | Huber+Suhner Ag | INTERCONNECTION ASSEMBLY FOR DATA COMMUNICATION |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3670268A (en) * | 1970-04-15 | 1972-06-13 | Raytheon Co | Waveguide hybrid junction wherein a wall of the e-arm is contiguous with a wall of the h-arm |
JPS61166602U (ja) * | 1985-04-02 | 1986-10-16 | ||
DE3824150A1 (de) * | 1988-07-16 | 1989-07-06 | Kathrein Werke Kg | Hohlleiter-twist |
JP2548810B2 (ja) * | 1989-11-24 | 1996-10-30 | 三菱電機株式会社 | 導波管形分波器 |
JPH042101U (ja) * | 1990-04-19 | 1992-01-09 | ||
JPH04236501A (ja) * | 1991-01-18 | 1992-08-25 | Nec Corp | 直交偏分波器 |
GB2274549B (en) * | 1992-12-04 | 1997-01-22 | Sg Microwaves Inc | Waveguide rotary joint |
JP3159631B2 (ja) * | 1995-07-12 | 2001-04-23 | 三菱電機株式会社 | 導波管分波器 |
EP1296404A1 (en) * | 2001-09-19 | 2003-03-26 | Marconi Communications GmbH | Waveguide twist with orthogonal rotation of both direction and polarisation |
JP2006094356A (ja) * | 2004-09-27 | 2006-04-06 | Japan Radio Co Ltd | アレイアンテナ |
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2006
- 2006-07-28 FR FR0653180A patent/FR2904478B1/fr not_active Expired - Fee Related
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2007
- 2007-07-27 RU RU2009107172/07A patent/RU2422956C2/ru active
- 2007-07-27 KR KR1020097003865A patent/KR20090035009A/ko not_active Application Discontinuation
- 2007-07-27 CN CN2007800322605A patent/CN101512837B/zh active Active
- 2007-07-27 WO PCT/EP2007/057797 patent/WO2008012369A1/fr active Application Filing
- 2007-07-27 EP EP07788011A patent/EP2047564B1/fr active Active
- 2007-07-27 CA CA2659345A patent/CA2659345C/en active Active
- 2007-07-27 US US12/375,297 patent/US7944324B2/en active Active
- 2007-07-27 DE DE602007009689T patent/DE602007009689D1/de active Active
- 2007-07-27 JP JP2009521281A patent/JP5292636B2/ja not_active Expired - Fee Related
- 2007-07-27 AT AT07788011T patent/ATE484090T1/de not_active IP Right Cessation
- 2007-07-27 ES ES07788011T patent/ES2350961T3/es active Active
Also Published As
Publication number | Publication date |
---|---|
US7944324B2 (en) | 2011-05-17 |
FR2904478B1 (fr) | 2010-04-23 |
FR2904478A1 (fr) | 2008-02-01 |
CN101512837B (zh) | 2012-10-31 |
JP2009545221A (ja) | 2009-12-17 |
EP2047564A1 (fr) | 2009-04-15 |
CN101512837A (zh) | 2009-08-19 |
WO2008012369A1 (fr) | 2008-01-31 |
CA2659345C (en) | 2015-12-01 |
DE602007009689D1 (de) | 2010-11-18 |
RU2009107172A (ru) | 2010-09-10 |
JP5292636B2 (ja) | 2013-09-18 |
KR20090035009A (ko) | 2009-04-08 |
US20090309674A1 (en) | 2009-12-17 |
CA2659345A1 (en) | 2008-01-31 |
ES2350961T3 (es) | 2011-01-28 |
ATE484090T1 (de) | 2010-10-15 |
RU2422956C2 (ru) | 2011-06-27 |
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