EP0329050B1 - Elektronische Mikroschaltung - Google Patents

Elektronische Mikroschaltung Download PDF

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Publication number
EP0329050B1
EP0329050B1 EP19890102421 EP89102421A EP0329050B1 EP 0329050 B1 EP0329050 B1 EP 0329050B1 EP 19890102421 EP19890102421 EP 19890102421 EP 89102421 A EP89102421 A EP 89102421A EP 0329050 B1 EP0329050 B1 EP 0329050B1
Authority
EP
European Patent Office
Prior art keywords
housing
partition
metal blade
circuit according
metal
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.)
Expired - Lifetime
Application number
EP19890102421
Other languages
English (en)
French (fr)
Other versions
EP0329050A1 (de
Inventor
Eric Fautrat
Christian Fagnon
Sante Fidanza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Original Assignee
Alcatel Telspace SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcatel Telspace SA filed Critical Alcatel Telspace SA
Publication of EP0329050A1 publication Critical patent/EP0329050A1/de
Application granted granted Critical
Publication of EP0329050B1 publication Critical patent/EP0329050B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices

Definitions

  • the invention relates to a microelectronic circuit.
  • This circuit makes it possible to carry out an electromagnetic decoupling by means of a partition separating two cavities, with active electrical vocation, of a microwave unit (or H.F.).
  • an electromagnetic decoupling is achieved by a partition obtained by machining the two adjacent cavities of the HF box.
  • the electrical transition between the two cavities is obtained thanks to an opening machined in the partition and skimming the internal bottom of the box, this opening can also be of complex shape, conforming as precisely as possible to the silhouette of the electrical transition.
  • the position, shape and precision of the location of the opening make it difficult to machine in the partition, and sometimes even impossible as soon as the small dimensions of the cavities do not allow the tool to pass through.
  • the object of the invention is to overcome these drawbacks.
  • the invention proposes, in fact, a microelectronic circuit comprising a microwave box with at least one microelectronic substrate incorporated, this box being provided with a longitudinal cavity in which each substrate is disposed, a transverse metallic partition of electromagnetic decoupling being provided for separating the housing in two adjacent active electrical cavities, this metal partition being provided at its lower part with an opening, characterized in that this box is provided with at least a couple of lateral housings machined on either side of said longitudinal cavity and in that this metal partition is removable and is for this purpose constituted by a metal blade, the part of which central constitutes the separating part and the two end parts of which form two elastic fins which are provided to come to lock respectively in each of the two aforementioned lateral housing housings, so that this removable partition is put in place in this housing by a simple vertical pressure exerted on this metal blade with elastic lateral fins.
  • Documentary may be cited documents JP-A-55/97702 and DE-A-1591570 which show one a conductive and fixed separating partition between a waveguide and a circuit integrated, and the other an insulating part for holding in position a substrate which is positioned across a metal receiving part with a U-section.
  • the invention thus makes it possible to simultaneously establish an electrical connection between the two cavities as well as the necessary electromagnetic decoupling, while eliminating the machining problems described above.
  • the invention improves the electrical performance of the HF package by the fact that the two aforementioned substrates, housed in two adjacent cavities, come together in a single substrate; this solution offers the advantage of limiting the clearances or "voids” due to the addition of manufacturing-machining tolerances of the cavities, cutting of the substrate, positioning of the active component (s), etc. These "voids” are d otherwise harmful to operation HF enclosure electrical
  • the invention facilitates assembly of the assembly, since each active component can be mounted and welded to the substrate before the latter is housed in the housing.
  • the invention therefore makes it possible to reduce assembly times as well as the risks of workmanship.
  • the partition is formed of a central part provided in its lower part with an opening and on the sides of two elastic fins relative to the latter so as to be blocked respectively in each lateral opening; It may for example be a metal blade which has been folded on either side of its central part to form two fins inclined relative to the latter.
  • FIG. 1 These different parts formed from etched substrates are shown diagrammatically in FIG. 1.
  • the amplifier proper 18 is formed of an etched substrate 21 onto which the active components 22, here two in number, are welded, and of "C.M.S.” components. 23 (surface mounted components) such as capacities, resistances ...
  • a coaxial input plug 24 and a coaxial output plug 25 make it possible to make a connection respectively with the circulator 17 and with the line 20.
  • Two grooves 31 and 32 are produced near the inlet and the outlet of the housing 10, to allow better positioning of the circulator 17 respectively with respect to the plug 24 and of the line 20 with respect to the plug 25.
  • the removable partition 14, shown more particularly in FIG. 3, is formed by a flat central part 26 provided in its lower part with an opening 27, here semi-circular, and on its two sides with two lateral fins 28 and 29 exhibiting a certain elasticity with respect thereto.
  • This partition 14 can be, as here, a metal blade which has been folded on either side of the central part 26 to form two fins 28 and 29 inclined relative to the latter.
  • this partition 14 is shown once placed in the housing 10 between the two orifices 15 and 16.
  • An absorbent plate 30, shown in Figure 2 is disposed between the upper part of this partition 14 and the cover 12 to absorb any vibrations in the vertical direction when using the circuit in a material, the longitudinal vibrations being damped due to the elasticity of this partition 14.
  • This partition 14 is made of a material with low transmission and a high power of reflection of electromagnetic radiation due to the presence of at least one active element (transistors 22): It can thus be made of beryllium bronze.
  • the plate 30 is made of absorbent material from a point of view radioelectric.
  • housing 10 and its cover can be made of aluminum alloy, the (or) substrates of ferrite, epoxy or duroid.
  • the amplifier A.F.B. mentioned above operating in the band 10.3 GHz - 10.7 GHz was produced with a box with dimensions of the order of 72 cm x 21 cm x 16 cm.
  • the characteristics of the invention therefore make it possible to produce a very simplified and better quality precise wiring assembly, the removable partition 14 being installed at the end of assembly.
  • the microelectronic circuit produced may be something other than an amplifier, it may also include any number of substrates.

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Claims (6)

  1. Mikroelektronik-Schaltung, die ein Mikrowellengehäuse (10) mit mindestens einem eingebauten Mikroelektronik-Substrat (21) enthält, wobei das Gehäuse einen längsgerichteten Raum (11) besitzt, in dem jedes Substrat (21) angeordnet ist, wobei eine metallische Quertrennwand zur elektromagnetischen Entkopplung vorgesehen ist, um das Gehäuse in zwei benachbarte Räume zur Aufnahme aktiver elektrischer Bauteile zu trennen, und wobei diese metallische Trennwand in ihrem unteren Teil eine Öffnung (27) besitzt, dadurch gekennzeichnet, daß dieses Gehäuse mindestens ein Paar von seitlichen Höhlungen (15, 16) besitzt, die zu beiden Seiten des längsgerichteten Raums (11) ausgefräst sind, und daß diese metallische Trennwand (14) entfernbar ist und zu diesem Zweck aus einer Metallamelle besteht, deren zentraler Bereich (26) den Trennbereich bildet und deren beide Endbereiche (28, 29) zwei elastische Flügel bilden, die so gestaltet sind, daß sie sich je in einer der beiden erwähnten seitlichen Höhlungen (15, 16) des Gehäuses blockieren, derart, daß diese entfernbare Trennwand (14) in das Gehäuse durch einfachen auf die Metallamelle mit den elastischen seitlichen Flügeln ausgeübten senkrechten Druck eingesetzt werden kann.
  2. Mikrowellenschaltung nach Anspruch 1, dadurch gekennzeichnet, daß der zentrale Bereich (26) dieser entfernbaren Metallamelle (14) eben ist.
  3. Mikrowellenschaltung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der zentrale Bereich (26) dieser entfernbaren Metallamelle (14) rechteckförmig ist.
  4. Mikrowellenschaltung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Trennwand (14) eine Metallamelle ist, die zu beiden Seiten des zentralen Bereichs geknickt ist, um zwei bezüglich des zentralen Bereichs geneigte Flügel (28, 29) zu bilden.
  5. Mikrowellenschaltung nach Anspruch 4, dadurch gekennzeichnet, daß die Metallamelle aus einer Berylliumlegierung besteht.
  6. Mikrowellenschaltung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine absorbierende Platte (30) zwischen dem Gehäuse (10) und seinem Deckel (12) angeordnet ist.
EP19890102421 1988-02-15 1989-02-13 Elektronische Mikroschaltung Expired - Lifetime EP0329050B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801748A FR2627328B1 (fr) 1988-02-15 1988-02-15 Circuit microelectronique
FR8801748 1988-02-15

Publications (2)

Publication Number Publication Date
EP0329050A1 EP0329050A1 (de) 1989-08-23
EP0329050B1 true EP0329050B1 (de) 1993-11-18

Family

ID=9363257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890102421 Expired - Lifetime EP0329050B1 (de) 1988-02-15 1989-02-13 Elektronische Mikroschaltung

Country Status (3)

Country Link
EP (1) EP0329050B1 (de)
DE (1) DE68910707T2 (de)
FR (1) FR2627328B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304656A1 (de) * 1993-02-16 1994-08-18 Deutsche Aerospace Verfahren zur Vermeidung des elektrischen Übersprechens und Anordnung zur Durchführung des Verfahrens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191874B (de) * 1962-11-23 1965-04-29 Siemens Ag Hohlleiterabschnitt mit einer induktiv wirkenden, verstellbaren Blende
JPS5597702A (en) * 1979-01-22 1980-07-25 Mitsubishi Electric Corp Waveguide-coupled microwave integrated-circuit device
US4270106A (en) * 1979-11-07 1981-05-26 The United States Of America As Represented By The Secretary Of The Air Force Broadband mode suppressor for microwave integrated circuits
JPS5863201A (ja) * 1981-10-12 1983-04-15 Matsushita Electric Ind Co Ltd 高周波回路装置
US4547755A (en) * 1984-03-27 1985-10-15 Watkins Johnson Company Microwave circuit structure and method of mounting

Also Published As

Publication number Publication date
FR2627328B1 (fr) 1990-11-30
EP0329050A1 (de) 1989-08-23
DE68910707T2 (de) 1994-03-10
FR2627328A1 (fr) 1989-08-18
DE68910707D1 (de) 1993-12-23

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