WO2009112377A1 - Dispositif d'amplification de puissance spatial multi-sources - Google Patents
Dispositif d'amplification de puissance spatial multi-sources Download PDFInfo
- Publication number
- WO2009112377A1 WO2009112377A1 PCT/EP2009/052300 EP2009052300W WO2009112377A1 WO 2009112377 A1 WO2009112377 A1 WO 2009112377A1 EP 2009052300 W EP2009052300 W EP 2009052300W WO 2009112377 A1 WO2009112377 A1 WO 2009112377A1
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- WO
- WIPO (PCT)
- Prior art keywords
- output
- input
- amplification device
- amplifier
- waveguide
- Prior art date
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- 230000007704 transition Effects 0.000 claims abstract description 73
- 238000005516 engineering process Methods 0.000 claims abstract description 23
- 230000003321 amplification Effects 0.000 claims description 28
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 28
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- 230000010287 polarization Effects 0.000 description 10
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
- H03F3/602—Combinations of several amplifiers
Definitions
- the present invention relates to the field of microwave amplifiers with semiconductors and more particularly the power combination systems.
- the field of the invention is in space power combinations systems.
- the decrease of the output power of the semiconductor elements with the increase of the operating frequency of the amplification devices leads to having to combine several elementary semiconductor amplifiers to reach the output powers required by certain applications in the microwave domain.
- the radial architecture is best suited to meet this type of need.
- other combination techniques may be more favorable in terms of performance, performance and bulk.
- FIG. 1A An example of a power combination device based on a tree structure for a Ka-band application is shown in FIG. 1A. He uses :
- a power divider 103 in planar technology with online access micro-ribbons to limit clutter;
- Hybrid coupler 106 in rectangular waveguide technology to minimize combination losses
- the spatial combination technique as developed in US5736908 is an alternative solution. It is characterized in that the amplification device comprises a plurality of amplifier modules, arranged on trays, superimposed in a rectangular waveguide. The input signal generated by a single source is distributed on the amplifier modules through the spatial distribution of the signal energy and re-combines at the output once amplified according to the same principle.
- This solution makes it possible to perform in a single step on the one hand the combination of the signals and on the other hand the transitions between the lines in planar technology and the output interface in rectangular waveguides. Thanks to these characteristics, it makes it possible to minimize the losses of combination and the bulk of the structure.
- this combination technique as described in the state of the art, has disadvantages and limitations.
- the number of trays stacked in a rectangular waveguide and the number of associated amplifiers on the same plate decreases with the reduction of the size of the rectangular waveguides imposed by the increase of the operating frequency.
- the width of the standard rectangular waveguide 200, 200 ' is much smaller than the width of an amplifier module 101, the latter comprising an amplifier 102 and the bias circuits 107 including the decoupling capacitors and the polarization ports.
- the trays are often thin so that they can be stacked in a rectangular waveguide. This can lead to delicate thermal management;
- the amplifiers are placed in the propagation axis of the rectangular waveguide which leads to having to use additional planar technology lines to connect the amplifiers to the transitions. Although losses in planar technology lines decrease with decreasing frequency, it is always interesting to minimize their contribution to combination losses by reducing their lengths;
- An object of the invention is to overcome the aforementioned drawbacks.
- the invention proposes a multi-source spatial amplification device emitting the components resulting from the division of the microwave input signal into connection waveguides, the components being amplified and combined in a single output waveguide .
- the amplification device combines several amplifier modules and operating in the microwave range.
- the device comprises: A power divider, having an input and at least two outputs, dividing an input microwave signal into a plurality of microwave signals.
- At least one planar technology input transition element placed at the output of each connection waveguide for receiving the microwave signal propagating in the connection waveguide;
- An amplifier module connected to each of the input transitions for amplifying the signal received by each of the input transitions and comprising at least one amplifier;
- a planar technology output transition element connected to each of the amplifier modules and capable of cooperating with an output waveguide common to all the output transition elements making it possible to combine the amplified signals from the amplifier modules, these signals combined forming the output microwave signal.
- each amplifier module and its input and output transition elements are on the same plane.
- the amplifier modules and their input and output transition elements are on planes parallel to each other.
- the transition elements are finned lines configured to provide electrical matching between the connecting waveguides, the amplifier modules and the output waveguide.
- the device comprises at least two outer half-shells forming a portion of the output guide, on which at least one amplifier module is in contact to promote heat exchange between the amplifier modules and the outside of the device.
- the axis of the amplifier modules is perpendicular to the propagation axis of the microwave signal resulting from the combined signals.
- the input of the divider can be realized in metal waveguide or planar technology.
- the connecting waveguides and the output metal waveguide are rectangular or circular metal waveguides.
- each connection waveguide is equipped with an element for adjusting the phase of the signal propagating in each connection waveguide.
- the input and output transitions associated with an amplifier module are made on the same printed circuit.
- the input and output transition elements associated with an amplifier module and the power divider are made on the same printed circuit.
- the output transitions are separated inside the output guide by a metal wall.
- the metal wall is extended by a resistive film.
- the device makes it possible to reduce the losses in combination and division.
- the structure of the device is compact.
- the device has phase adjustment elements in the connection waveguides in order to compensate for the phase dispersion of the amplifier modules.
- the device makes it possible to process high frequencies in the microwaves, especially beyond 30 GHz.
- FIG. 1A a first tree architecture amplification device of the prior art
- FIG. 2 a block diagram of a multi-source spatial amplification device according to the invention
- FIG. 3 a multi-source spatial amplification device of the invention
- FIG. 4A a view of an embodiment of a transition element, viewed from the top face of the printed circuit;
- Figure 4B a view of the embodiment shown in Figure 4A, bottom view of the printed circuit board;
- FIG. 5A a first view of a first embodiment of the device comprising two amplifiers, with the upper half-shell seen in transparency;
- FIG. 5B an exploded view, seen from above, of the embodiment of the device of FIG. 5A;
- FIG. 5C an exploded view, seen from below, of the embodiment of the device of FIG. 5A;
- FIG. 6A an exploded view, seen from above, of an embodiment of the device comprising four amplifiers;
- FIG. 6B an exploded view, seen from below, of the embodiment of the device of FIG. 6A
- FIG. 6C a view, combiner access, of the embodiment of the device of FIG. 6A assembled
- FIG. 6D a view, divider access, of the embodiment of the device of FIG. 6A assembled
- FIG. 6E a sectional view of the signal division portion of the embodiment of the device of FIG. 6A assembled
- FIG. 6F a sectional view at the level of the amplifier modules of the embodiment of the device of FIG. 6A assembled
- FIG. 7A a view of an embodiment with a metal wall separating the two output transition elements
- FIG. 7B a view of the embodiment shown in FIG. 7A with the upper half-shell;
- FIGS. 8A and 8B two views of an embodiment where the metal wall separating the two output transition elements is extended by a resistive film
- FIG. 9 a view of an embodiment where a resistive film is incorporated between the two output transition elements
- Figure 1 OA an external view of an embodiment of the device comprising two superimposed amplifier modules; • Figure 1 OB: a sectional view of the embodiment shown in Figure 1 OA.
- FIG. 2 represents a block diagram of a device according to the invention comprising four combined amplifier modules 30.
- the device represented comprises two connection waveguides 4 preceded by a power divider 27.
- the power divider 27 makes it possible to dividing an input microwave signal 1 into two components 25 propagating in the two connection waveguides 4.
- the power divider 27 may be in planar technology or for example in a metal waveguide such as a " septum divider ", according to the English terminology designating a divider consisting of an inlet and two outlets in rectangular guide.
- the two exit guides are separated at the point of division by a thin wall (the "septum", Latin term) which can be metallic or resistive.
- a splitter 27 in planar technology is associated with two transitions not shown in FIG. 2, to ensure the change in the mode of propagation of the signal between a planar structure and a connection waveguide 4.
- two input transition elements 5 in planar technology make it possible to distribute the components of the input microwave signal 25 in the amplification modules 30 each comprising at least one amplifier 6.
- the signals thus amplified are then transmitted via four planar technology output transition elements 7 in an output waveguide 8 for recombining the microwave output signal 26.
- FIG. 3 represents an embodiment of a device according to the invention comprising a power divider 2 whose access is via a microstrip type input.
- the power divider 2 allows dividing the input microwave signal 1 into two components to illuminate the two rectangular connection waveguides 4 through the two transitions 3, 3 '.
- the signals propagate in the rectangular connection waveguides 4 from the output transitions 3, 3 'of the divider to input transition elements 5 of the amplifier modules 30.
- a transition 5 is placed at the output of each connection waveguide 4.
- the amplifier modules 30 each comprise an amplifier 6, polarization circuits with decoupling capacitors 10.
- the output transitions elements 7 provide the electrical matching between the amplifier modules 30 and the rectangular output waveguide 8.
- the axis of the inputs and outputs of the two amplifier modules 30 is perpendicular to the axis of propagation of the microwave output signal 26. This arrangement reduces the length of the planar lines connecting the amplifier modules 30 to the elements of output transitions 7 and input transition elements 6 so that the length of the lines is minimal. Combination losses and division losses are thus minimized.
- the device according to the invention comprises phase control elements 15 in the connection guides 4 for controlling the relative phase between the signals 25 propagating in the connection waveguides 4 so as to provide phase recombination of these signals in the output waveguide 8 once amplified by the amplifier modules 30. This feature minimizes the combination losses by eliminating the losses induced by phase unbalance of combined signals.
- the phase adjusting elements can be made by dielectric elements introduced into the connection guides. The depths of penetration of these dielectric elements in the connection guides 4 then make it possible to act on the phases of the signals 25 propagating in the connection guides 4.
- the transitions may be replaced by a network of transitions and the amplifiers may be replaced by an array of amplifiers.
- transition elements can be made with fin lines or slit lines associated with micro-ribbons lines.
- Several transitions can be arranged on the same printed circuit in such a way as to create transition networks.
- the circuits can be made on organic substrates such as the RO4003 TM.
- FIGS. 4A and 4B show an embodiment of a transition element on a printed circuit 41 between two half-shells 44 forming a rectangular guide 49.
- FIG. 4A and FIG. 4B respectively show the upper face and the lower face of the printed circuit 41.
- the metal planes 43 and 48 on either side of the printed circuit 41 are connected by a set of metallized holes, not shown on the FIGS. 4A and 4B, to ensure electrical continuity between the half-shells 44 and 44 '.
- a gradual narrowing of the distance separating the two inner edges 45 of the metal plane 48 makes it possible to progressively move from the propagation mode in the rectangular guide 49 to the slot propagation mode in the slot 47.
- the transition between the slot mode propagating in the slot 47 and the micro-ribbon mode propagating between the line 42 and the metallization plane 48 is obtained thanks to the slot line 50 of length ⁇ / 4 terminated by a short circuit and to the metallized hole 46 connecting line 42 and the metal plane 48.
- FIGS. 4A and 4B the printed circuit 41 is cut in such a way as to eliminate all the parts of the printed circuit leading to a degradation of the insertion losses of the transition element and useless to the respect of constraints. electrical and mechanical transitions. The cutting of the circuit is then performed between the two inner edges 45 of the metal plane 48.
- FIG. 5A represents an embodiment of the invention combining two amplifiers 6.
- a printed circuit 9 is interposed between a lower half-shell 13 and an upper half-shell 14.
- the upper half-shell 14 is view in transparency in Figure 5A.
- the half-shells 13, 14 can be made of aluminum with a gold finish.
- the printed circuit board 9 can be made from an organic substrate such as the RO4003 TM.
- the assembly of the two half-shells 13, 14 and the printed circuit 9 forms two connecting guides 4 and the output guide 8.
- the printed circuit 9 comprises a power divider 2 in microstrip, the output transitions 3 of the divider power 2, the elements of input 5 and output 7 transitions and metallization planes 31.
- the metallization planes 31 on either side of the printed circuit 9 are connected by a set of metallized holes to ensure the electrical continuity between the two faces of the printed circuit which are in contact with the two half-shells 13, 14.
- the amplifier module 30 consists solely of the amplifier.
- the amplifier modules 30 are then placed directly in contact with the body of the amplification device, the body of the device comprising the lower half-shell 13. This arrangement has the advantage of promoting heat exchanges between the amplifier modules 30 and the outside the device.
- FIG. 5B is an exploded view from above of the embodiment of the invention shown in FIG. 5A with the printed circuit 9, the upper half-shell 14 equipped with phase adjustment elements 15 and the half-shell lower shell equipped with amplifier modules 30 and polarization ports 1 1.
- This figure shows the simplicity of assembly of this embodiment of the invention through a stack of the half-shells 14, 15 and the circuit 9 and the embodiment on a single printed circuit 9 of the power divider 2 and the input and output transition elements 5 and 7.
- Fig. 5C is an exploded bottom view of the embodiment of the invention shown in Fig. 5A. It represents the polarization ports 1 1 facing outwards of the lower half-shell 13, as well as the lower metal plane 33 of the circuit 9 and the cavities 32 of the upper half-shell 14 necessary to receive the amplifier modules 30 and polarization access 11.
- Fig. 6A and Fig. 6B show two exploded views of an embodiment of the invention combining four amplifiers, respectively a top view and a bottom view.
- the assembly of these elements forms two connecting guides and the output guide.
- a half-shell 20 ', a circuit 23' and a grid 21 'are assembled and the two half-shells 20, 20' are equipped with amplifier modules 30 and polarization ports 1 1.
- half-shells 20, 20 'and the grids 21, 21' can be made of aluminum with a gold finish.
- the circuits 22, 23, 23 ' can be made from a substrate such as the RO4003 TM.
- the circuit 22 comprises a microstrip power divider 2, the output transitions of the power divider 3 and the metallization planes 34, 35.
- the circuits 23, 23 ' comprise the input and output transition elements 5 and 7.
- the metallization planes on either side of a circuit are connected by a set of metallized holes to ensure the electrical continuity between the two faces of a circuit in contact with the half -shells or grilles.
- the bias voltages of the amplifiers 6 are transmitted by polarization ports 11 and decoupled by decoupling capacitors 10.
- phase adjustment elements may be added to control the phases of the combined signals in the output guide.
- the amplifiers and the decoupling capacitors are transferred to a high thermal conductivity element 32, these elements forming the amplifier module for this embodiment.
- the amplifier module may consist solely of an amplifier.
- the amplifier modules 30 are placed directly in contact with the body of the amplification device, constituted by the half-shells 20, 20 ', to promote heat exchange between the amplifier modules 30 and the outside of the device.
- Fig. 6C and Fig. 6D show two views of the embodiment of the assembled invention of the modes of Figs. 6A and 6B.
- 6C represents a view of the side where the exit guide 8 is located with the output transition elements 7.
- FIG. 6D shows a view of the side where the power divider 2 is located.
- These representations 6C and 6D show the three circuits 22 , 23, 23 'the two grids 21, 21' and the two half-shells 20, 20 'assembled with the polarization ports 1 1.
- FIG. 6E represents a sectional view of the embodiment of the invention shown in FIGS. 6C and 6D at the power divider 2.
- FIG 6F shows a sectional view of the embodiment of the invention shown in Figures 6C and 6D at the amplifier modules.
- two planar technology input transition elements 6 make it possible to distribute the components of the input microwave signal in the amplification modules 30.
- the amplified signals are then transmitted by the intermediate of four planar technology output transition elements 7 in an output waveguide 8 for re-combining the microwave output signal.
- Each amplifier module 30 and its elements of input and output transitions 7 in planar technology associated are placed on the same plane.
- the amplifier modules 30 are distributed in two parallel planes, each plane comprising two amplifier modules 30.
- the transition elements 5 and 7 are fin lines configured to provide electrical matching between the connecting waveguides 4, the amplifier modules 30 and the output waveguide 8.
- L The axis of the amplifier modules 30 is perpendicular to the propagation axis of the microwave signal resulting from the combined signals.
- the amplifier modules 30 are placed directly in contact with the body of the amplification device in order to promote the heat exchange between the amplifier modules and the outside of the device by virtue of an arrangement of the amplifiers facing each other.
- the amplifier modules 30 can be isolated in separate cavities thanks to the metallization planes of the circuit 22.
- Figs. 7A and 7B show another embodiment of the invention with views of the exit guide with and without the upper half-shell.
- the device according to the invention comprises, in this embodiment, elements 38 forming a metal partition wall separating the two output transition elements 7 from the output waveguide 8.
- the metal wall may be extended by a resistive surface to improve the isolation between the combined amplifier channels.
- the resistive film 39 is transferred to a circuit 51.
- the upper half-shell is not shown in these figures.
- a circuit 40 of identical size to that of the circuit 51 without resistive film is placed in contact with the circuit 51 in order to symmetrize the structure.
- Circuits 50 and 51 may be made for example of alumina or AlN.
- the resistive surface is directly incorporated in the wall separating the transition elements 7.
- FIGS. 1 OA and 1 OB represent another embodiment of a device according to the invention combining two superimposed amplifier modules.
- FIG. 10A and FIG. 1BB are respectively an external view and a sectional view of this embodiment.
- three circuits 56, 56 ', 57, two half-shells 58, 58' and two grids 59, 59 ' are stacked.
- the assembly of these elements forms two connecting guides 4, the output guide 8 and an input guide 55.
- the two connection guides are separated by metallization planes 53 on either side of the substrate 57.
- circuit 57 also comprises a transition 54 making it possible to match the microstrip access of the device with the input guide 55.
- the circuits 56, 56 ' comprise the elements of input transitions 5 and the transition elements of outputs 7, the bias ports 1 1 of the amplifier modules 30 and finned line transitions elements 52.
- the power divider 27 is realized via the two finned line transitions 52 for sensing the propagating signal in the rectangular input guide 55 and illuminate the two connecting guides 4 superimposed.
- Two phase adjustment elements 15 make it possible to independently control the phases of the combined signals in the output guide 8.
- This latter embodiment can also be implemented in the embodiment of FIGS. 6A, 6B, 6C, 6D, 6E and 6F in order to be able to individually control the phase of the signals propagating in the four connection guides.
- a device that makes it easy to compensate for the phase dispersion of two amplifier modules in order to minimize the combination losses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2718006A CA2718006A1 (fr) | 2008-03-11 | 2009-02-26 | Dispositif d'amplification de puissance spatial multi-sources |
CN2009801085837A CN101971490A (zh) | 2008-03-11 | 2009-02-26 | 多源空间功率放大器 |
EP09720667A EP2263311A1 (fr) | 2008-03-11 | 2009-02-26 | Dispositif d'amplification de puissance spatial multi-sources |
JP2010550129A JP2011514110A (ja) | 2008-03-11 | 2009-02-26 | 多重源の空間出力増幅器 |
US12/921,444 US20110006858A1 (en) | 2008-03-11 | 2009-02-26 | Multi-Source Spatial Power Amplifier |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0801324 | 2008-03-11 | ||
FR0801324A FR2928793A1 (fr) | 2008-03-11 | 2008-03-11 | Dispositif d'amplification de puissance spatial multi-sources |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009112377A1 true WO2009112377A1 (fr) | 2009-09-17 |
Family
ID=39870344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/052300 WO2009112377A1 (fr) | 2008-03-11 | 2009-02-26 | Dispositif d'amplification de puissance spatial multi-sources |
Country Status (9)
Country | Link |
---|---|
US (1) | US20110006858A1 (fr) |
EP (1) | EP2263311A1 (fr) |
JP (1) | JP2011514110A (fr) |
KR (1) | KR20100135738A (fr) |
CN (1) | CN101971490A (fr) |
CA (1) | CA2718006A1 (fr) |
FR (1) | FR2928793A1 (fr) |
RU (1) | RU2010141531A (fr) |
WO (1) | WO2009112377A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013179382A1 (fr) * | 2012-05-29 | 2013-12-05 | 日本電気株式会社 | Dispositif d'amplification de système multiple |
KR101342885B1 (ko) * | 2012-09-21 | 2013-12-18 | (주)엑스엠더블유 | 최소 가공 및 조립 오차를 갖는 Ka 대역 고출력 증폭기 |
KR101596408B1 (ko) * | 2014-11-13 | 2016-02-22 | 목포해양대학교 산학협력단 | 고이득 증폭 장치 |
KR101728908B1 (ko) | 2015-09-21 | 2017-04-21 | 가천대학교 산학협력단 | 이중 신호면과 공통 접지면을 갖는 안티포달 핀라인 변환기 및 안티포달 핀라인 변환기를 이용한 공간 결합 전력 증폭기 |
US11387791B2 (en) * | 2020-03-17 | 2022-07-12 | Qorvo Us, Inc. | Spatial power-combining devices with reduced size |
US20230291087A1 (en) * | 2022-03-14 | 2023-09-14 | Qorvo Us, Inc. | Antenna structures for spatial power-combining devices |
CN115037258A (zh) * | 2022-04-25 | 2022-09-09 | 河南星桥源电子科技有限公司 | 一种c频段连续波固态功放 |
FI20236361A1 (en) | 2023-12-11 | 2025-06-12 | Teknologian Tutkimuskeskus Vtt Oy | Amplifier module |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2482384A1 (fr) * | 1980-05-12 | 1981-11-13 | Gen Electric | Dispositif de combinaison de puissance pour un circuit integre hyperfrequence |
FR2823618A1 (fr) * | 2001-04-13 | 2002-10-18 | Electricite De France | Etage d'un generateur de puissance d'un courant haute frequence |
WO2003079406A2 (fr) * | 2002-03-11 | 2003-09-25 | Centellax, Inc. | Source de courant repartie a tension limitee pour terminaison d'impedance a bande ultralarge |
WO2006096771A2 (fr) * | 2005-03-08 | 2006-09-14 | Wavestream Corporation | Procede et appareil d'augmentation de la performance d'un multiplexeur de puissance spatial fonde sur un guide d'ondes |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677393A (en) * | 1985-10-21 | 1987-06-30 | Rca Corporation | Phase-corrected waveguide power combiner/splitter and power amplifier |
US5736908A (en) * | 1996-06-19 | 1998-04-07 | The Regents Of The University Of California | Waveguide-based spatial power combining array and method for using the same |
US7164903B1 (en) * | 2003-06-10 | 2007-01-16 | Smiths Interconnect Microwave Components, Inc. | Integrated N-way Wilkinson power divider/combiner |
-
2008
- 2008-03-11 FR FR0801324A patent/FR2928793A1/fr not_active Withdrawn
-
2009
- 2009-02-26 WO PCT/EP2009/052300 patent/WO2009112377A1/fr active Application Filing
- 2009-02-26 CA CA2718006A patent/CA2718006A1/fr not_active Abandoned
- 2009-02-26 KR KR1020107020149A patent/KR20100135738A/ko not_active Withdrawn
- 2009-02-26 CN CN2009801085837A patent/CN101971490A/zh active Pending
- 2009-02-26 EP EP09720667A patent/EP2263311A1/fr not_active Withdrawn
- 2009-02-26 US US12/921,444 patent/US20110006858A1/en not_active Abandoned
- 2009-02-26 RU RU2010141531/08A patent/RU2010141531A/ru unknown
- 2009-02-26 JP JP2010550129A patent/JP2011514110A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2482384A1 (fr) * | 1980-05-12 | 1981-11-13 | Gen Electric | Dispositif de combinaison de puissance pour un circuit integre hyperfrequence |
FR2823618A1 (fr) * | 2001-04-13 | 2002-10-18 | Electricite De France | Etage d'un generateur de puissance d'un courant haute frequence |
WO2003079406A2 (fr) * | 2002-03-11 | 2003-09-25 | Centellax, Inc. | Source de courant repartie a tension limitee pour terminaison d'impedance a bande ultralarge |
WO2006096771A2 (fr) * | 2005-03-08 | 2006-09-14 | Wavestream Corporation | Procede et appareil d'augmentation de la performance d'un multiplexeur de puissance spatial fonde sur un guide d'ondes |
Also Published As
Publication number | Publication date |
---|---|
JP2011514110A (ja) | 2011-04-28 |
KR20100135738A (ko) | 2010-12-27 |
EP2263311A1 (fr) | 2010-12-22 |
CN101971490A (zh) | 2011-02-09 |
FR2928793A1 (fr) | 2009-09-18 |
RU2010141531A (ru) | 2012-04-20 |
CA2718006A1 (fr) | 2009-09-17 |
US20110006858A1 (en) | 2011-01-13 |
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