EP2118910B1 - Rf terminating resistor of flanged construction - Google Patents

Rf terminating resistor of flanged construction Download PDF

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Publication number
EP2118910B1
EP2118910B1 EP07819655A EP07819655A EP2118910B1 EP 2118910 B1 EP2118910 B1 EP 2118910B1 EP 07819655 A EP07819655 A EP 07819655A EP 07819655 A EP07819655 A EP 07819655A EP 2118910 B1 EP2118910 B1 EP 2118910B1
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EP
European Patent Office
Prior art keywords
substrate
flange body
bent
plane
flange
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EP07819655A
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German (de)
French (fr)
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EP2118910A1 (en
Inventor
Frank Weiss
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Rosenberger Hochfrequenztechnik GmbH and Co KG
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Rosenberger Hochfrequenztechnik GmbH and Co KG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • H01P1/26—Dissipative terminations
    • H01P1/268—Strip line terminations

Definitions

  • the present invention relates to an RF termination resistor having a flange body and a planar layer structure disposed thereon having on a top surface of a substrate a resistance layer for converting RF energy into heat, an input line for supplying RF energy, and a ground terminal trace for electrical connection to a ground contact on the flange body, wherein the input conductor is electrically connected to a first end of the resistive layer, the ground lead is electrically connected to a second end of the resistive layer opposite the first end, and the substrate rests on the flange body with a bearing side remote from the laminating structure; according to the preamble of claim 1.
  • Such an RF termination is disclosed in the document JP 04 125 903 known.
  • Flanged RF flange terminators are used to dissipate high power loss lines. It is known to apply a resistance structure to a substrate and to arrange this substrate on a flange body, which constitutes a ground contact. In order to establish an electrical connection from the resistance structure to the ground contact of the flange body, it is necessary to build up an edge changeover contact around the substrate or a substrate through-connection to the ground connection. Both, however, is complicated and costly.
  • the invention has for its object to provide an RF termination of the o.g. To improve the type of construction and manufacture and thereby not to deteriorate the electrical properties of the RF termination, but on the contrary to improve.
  • the flange body is bent over at least a predetermined portion in the direction parallel to this edge and a predetermined portion in the direction perpendicular to this edge at a first edge, which faces the ground lead on the substrate, that the bent portion of the flange body extends into a space between a first plane defined by the support side of the substrate and a second plane defined by the top of the substrate, the substrate having a side connecting the support side of the substrate to the top of the substrate and which faces the ground terminal trace on the upper surface of the substrate abuts against the bent portion of the flange body.
  • a particularly easy to make electrical contact between the ground terminal trace and the bent portion of the flange is achieved by the fact that the bent portion of the flange of the first level up to at least the second level or beyond such that extends at least a portion of the bent portion of the flange body in the second plane adjacent to the ground terminal trace.
  • the bent portion of the flange in the direction parallel to the first edge has a length corresponding to at least one width of the substrate.
  • the bent portion on the flange body has at least two lugs whose distance in the direction parallel to the first edge of the flange corresponds to the width of the substrate and which extend from the elevation into a space between the first plane and the second plane, is a double-sided stop for the substrate is available, which fixes a position of the substrate on the flange body before attaching the substrate to the flange body.
  • the bent-over section with the first plane encloses an angle of 90 ° on a side facing the substrate.
  • an inventive RF termination resistor in flange construction comprises a flange 10 on which a substrate 12 is arranged.
  • a layer structure comprising a resistance layer 16 for converting RF energy to heat, an input conductor 18 for supplying RF energy and a ground lead 20 for electrical connection to a ground contact on the flange body 10.
  • the input trace 18 is electrically connected to a first end of the resistive layer 16.
  • the ground terminal trace 20 is electrically connected to a second end of the resistance layer 16 opposite the first end.
  • the substrate 12 rests on the flange body 10 with a support side 22 remote from the layer structure 16, 18, 20.
  • the flange body 10 has an edge 24, wherein the substrate 12 with the layer structure 16, 18, 20 arranged thereon is arranged on the flange body 10 such that the ground connection conductor 20 faces the edge 24.
  • the support side 22 of the substrate 12 defines a first plane and the top 14 of the substrate 12 defines a second plane.
  • the edge 24 is over a predetermined portion in the direction parallel to the edge 24 and over a predetermined portion bent in the direction perpendicular to the edge 24.
  • the predetermined portion extends parallel to edge 24 over the entire length of edge 24.
  • this predetermined portion parallel to edge 24 may alternatively extend over only a portion of the length of edge 24, for example over a length corresponding to the width of the substrate 12 in the direction parallel to the edge 24.
  • the bent portion 26 of the flange body 10 is formed and bent such that the bent portion 26 extends at least in the space between the first and second planes.
  • the bent portion 26 extends completely through the space between the first and second levels to the second level and further beyond the second level.
  • the bent portion 26 it is also possible for the bent portion 26 to extend to the second plane or to end within the space between the first and second planes.
  • the substrate 12 strikes against the bent portion 26 of the flange body 10 with a short side 28 which connects the upper side 14 of the substrate 12 to the support side 22 of the substrate 12.
  • the short side 28 is the side of the substrate 12 which faces the ground connection conductor 20 on the upper side 14 of the substrate 12.
  • it is particularly advantageous that the bent portion 26 of the flange 10 is bent over more than 90 ° relative to the flange 10. This results in an angle between the bent portion 26 of the flange 10 and the top of the substrate or defined by this second plane on a substrate 12 side facing smaller than 90 °, such as 86 ° to 80 °.
  • an angle 30 between the bent portion 26 of the flange body 10 and a perpendicular 32 of the upper surface 14 of the substrate 12 is 4 ° to 10 °.
  • lugs 34 are arranged, which protrude beyond the end of the bent portion 26 and are bent relative to the bent portion 26 by a further angle 36, for example, 45 °. As a result, these lugs 34 project back into the space between the first and second levels.
  • the distance between these lugs 34 in the direction parallel to the edge 24 of the flange 10 corresponds approximately to the width of the substrate 12 in the direction parallel to the edge 24.
  • the bent portion 26 of the flange body 10 forms the ground contact for the ground lead 20. As the bent portion 26 extends into the space between the first and second planes, electrical contact between the ground lead 20 and the folded portion 26 is incomplete Kantenumtitle réelle to the short side 28, the substrate 12 around easy to produce. In the illustrated exemplary embodiment, the bent-over section 26 projects beyond the second plane or upper side 14 of the substrate 12, so that the establishment of the electrical contact between the ground connection trace 20 and the bent-over section 26 of the flange body 10 takes place directly in one plane, namely the second Level of the top 14 of the substrate 12 can be done. On the one hand, this simplifies the manufacture of this electrical contact and, on the other hand, improves the electrical properties of the RF terminating resistor since the path of the electrical contacting is as short as possible and no longer completely around an edge of the substrate 12.
  • a cover 38 partially covers the layer structure 16, 18, 20.
  • This cover is made, for example, of the same material as the substrate 12.
  • the cover 38 has the same dielectric constant as the material of the substrate 12. This additionally influences the electrical properties of the HF terminating resistor positively, since the electric field is influenced by the electric field double-sided, identical dielectric (12, 38), ie substrate 12 on the one hand and cover 38 on the other hand, closely to the layer structure 16, 18, 20 is guided.
  • the flange body or the flange plate 10 with the bent portion 26 is made entirely from one piece and, for example, a stamped and bent part.
  • the bent portion 26 serves to connect the ground of the resistor structure 14 with the flange plate 10.
  • the overall construction including substrate structure 12, 16, 18, 20 is designed for a broadband application with very good RF properties.
  • solder joint is made from the ground lead 20 to the folded portion 26. Due to the fact that the bent-over section 26 extends in a particularly advantageous manner to or over the upper side 14 of the substrate 12 (second plane), this soldered connection can be produced easily, quickly and inexpensively in the second plane of the upper side 14 of the substrate 12 ,

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Details Of Resistors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Amplifiers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

A wave guide has a high frequency (HF) moving load consisting of a flange (10) with a planar laminated structure (16, 18, 20) that converts HF energy into heat. The unit has an input waveguide (18), a wave guide (20) to an earth contact on the flange (12). The input waveguide (18) is in electrical contact with the first end of the resistance layer (16), and the earth wave guide (20) with the first end of the facing second of the resistance layer (16). The substrate (12) rests against that face (22) of the flange (10) facing away from the layered structure (16, 18, 20). One flange (10) edge (24), directed towards the earth waveguide (20) on the substrate, is bent at right angles.

Description

Die vorliegende Erfindung betrifft einen HF-Abschlusswiderstand mit einem Flanschkörper und einer darauf angeordneten planaren Schichtstruktur, die auf einer Oberseite eines Substrates eine Widerstandsschicht zum Umwandeln von HF-Energie in Wärme, eine Eingangsleiterbahn zum Zuführen von HF-Energie und eine Masseanschlussleiterbahn zum elektrischen Verbinden mit einem Massekontakt auf dem Flanschkörper aufweist, wobei die Eingangsleiterbahn mit einem ersten Ende der Widerstandsschicht elektrisch verbunden ist, die Masseanschlussleiterbahn mit einem dem ersten Ende gegenüberliegenden zweiten Ende der Widerstandsschicht elektrisch verbunden ist und das Substrat mit einer von der Schichtstruktur abgewandten Auflageseite auf dem Flanschkörper aufliegt, gemäß dem Oberbegriff des Anspruchs 1. Ein solcher HF-Abschlusswiderstand ist aus der Druckschrift JP 04 125 903 bekannt.The present invention relates to an RF termination resistor having a flange body and a planar layer structure disposed thereon having on a top surface of a substrate a resistance layer for converting RF energy into heat, an input line for supplying RF energy, and a ground terminal trace for electrical connection to a ground contact on the flange body, wherein the input conductor is electrically connected to a first end of the resistive layer, the ground lead is electrically connected to a second end of the resistive layer opposite the first end, and the substrate rests on the flange body with a bearing side remote from the laminating structure; according to the preamble of claim 1. Such an RF termination is disclosed in the document JP 04 125 903 known.

Breitbandige HF-Abschlusswiderstände in Flanschbauweise dienen zur Ableitung hoher Verlustleitungen. Es ist bekannt, auf ein Substrat eine Widerstandsstruktur aufzubringen und dieses Substrat auf einem Flanschkörper anzuordnen, der einen Massekontakt darstellt. Zum Herstellen einer elektrischen Verbindung von der Widerstandsstruktur zum Massekontakt des Flanschkörpers ist es dabei erforderlich, eine Kantenumkontaktierung um das Substrat herum oder eine Substrat-Durchkontaktierung zur Masseverbindung aufzubauen. Beides ist jedoch aufwändig und kostenintensiv.Flanged RF flange terminators are used to dissipate high power loss lines. It is known to apply a resistance structure to a substrate and to arrange this substrate on a flange body, which constitutes a ground contact. In order to establish an electrical connection from the resistance structure to the ground contact of the flange body, it is necessary to build up an edge changeover contact around the substrate or a substrate through-connection to the ground connection. Both, however, is complicated and costly.

Der Erfindung liegt die Aufgabe zugrunde, einen HF-Abschlusswiderstand der o.g. Art hinsichtlich Aufbau und Herstellung zu verbessern und dabei die elektrischen Eigenschaften des HF-Abschlusswiderstandes nicht zu verschlechtern, sondern im Gegenteil zu verbessern.The invention has for its object to provide an RF termination of the o.g. To improve the type of construction and manufacture and thereby not to deteriorate the electrical properties of the RF termination, but on the contrary to improve.

Diese Aufgabe wird erfindungsgemäß durch einen HF-Abschlusswiderstand der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen beschrieben.This object is achieved by an RF termination of o.g. Art solved with the features characterized in claim 1. Advantageous embodiments of the invention are described in the further claims.

Bei einem HF-Abschlusswiderstand der o.g. Art ist es erfindungsgemäß vorgesehen, dass der Flanschkörper an einer ersten Kante, der die Masseanschlussleiterbahn auf dem Substrat zugewandt ist, über wenigstens einen vorbestimmten Abschnitt in Richtung parallel zur dieser Kante sowie einen vorbestimmten Abschnitt in Richtung senkrecht zu dieser Kante derart umgebogen ist, dass sich der umgebogene Abschnitt des Flanschkörpers in einen Raum zwischen einer durch die Auflageseite des Substrates definierten ersten Ebene und einer von der Oberseite des Substrates definierten zweiten Ebene hinein erstreckt, wobei das Substrat mit einer Seite, die die Auflageseite des Substrats mit der Oberseite des Substrats verbindet und der die Masseanschlussleiterbahn auf der Oberseite des Substrats zugewandt ist, an dem umgebogenen Abschnitt des Flanschkörpers anschlägt.For an RF termination of the o.g. It is inventively provided that the flange body is bent over at least a predetermined portion in the direction parallel to this edge and a predetermined portion in the direction perpendicular to this edge at a first edge, which faces the ground lead on the substrate, that the bent portion of the flange body extends into a space between a first plane defined by the support side of the substrate and a second plane defined by the top of the substrate, the substrate having a side connecting the support side of the substrate to the top of the substrate and which faces the ground terminal trace on the upper surface of the substrate abuts against the bent portion of the flange body.

Dies hat den Vorteil, dass zum Herstellen des elektrischen Kontaktes zwischen der Masseanschlussleiterbahn und dem Massekontakt auf dem Flanschkörper keine kostenintensive Kantenumkontaktierung um eine Seite des Substrates herum notwenig ist, sondern dieser elektrische Kontakt in der zweiten Ebene der Oberseite des Substrates, auf der die Masseanschlussleiterbahn auf dem Substrat angeordnet ist, auf einfache Weise durch elektrisches Verbinden der Masseanschlussleiterbahn mit dem umgebogenen Abschnitt des Flanschkörpers hergestellt werden kann.This has the advantage that for producing the electrical contact between the ground terminal conductor and the ground contact on the flange no cost-intensive Kantenumkontaktierung is necessary around one side of the substrate around, but this electrical contact in the second level of the top of the substrate on which the ground lead on the substrate is arranged, can be easily prepared by electrically connecting the ground terminal trace with the bent portion of the flange.

Eine besonders einfach herzustellende elektrische Kontaktierung zwischen der Masseanschlussleiterbahn und dem umgebogenen Abschnitt des Flanschkörpers erzielt man dadurch, dass sich der umgebogene Abschnitt des Flanschkörpers von der ersten Ebene bis wenigstens in die zweite Ebene oder darüber hinaus derart erhebt, dass sich wenigstens ein Abschnitt des umgebogenen Abschnittes des Flanschkörpers in der zweiten Ebene benachbart zur Masseanschlussleiterbahn erstreckt.A particularly easy to make electrical contact between the ground terminal trace and the bent portion of the flange is achieved by the fact that the bent portion of the flange of the first level up to at least the second level or beyond such that extends at least a portion of the bent portion of the flange body in the second plane adjacent to the ground terminal trace.

Zweckmäßigerweise weist der umgebogene Abschnitt des Flanschkörpers in Richtung parallel zur ersten Kante eine Länge auf, die wenigstens einer Breite des Substrates entspricht.Conveniently, the bent portion of the flange in the direction parallel to the first edge has a length corresponding to at least one width of the substrate.

Dadurch, dass der umgebogene Abschnitt am Flanschkörper wenigstens zwei Nasen aufweist, deren Abstand in Richtung parallel zur ersten Kante des Flanschkörpers der Breite des Substrats entspricht und die sich ausgehend von der Erhebung in einen Raum zwischen der ersten Ebene und der zweiten Ebene hinein erstrecken, steht ein beidseitiger Anschlag für das Substrat zur Verfügung, welche eine Position des Substrates auf dem Flanschkörper bereits vor dem Befestigen des Substrates mit dem Flanschkörper fixiert.Characterized in that the bent portion on the flange body has at least two lugs whose distance in the direction parallel to the first edge of the flange corresponds to the width of the substrate and which extend from the elevation into a space between the first plane and the second plane, is a double-sided stop for the substrate is available, which fixes a position of the substrate on the flange body before attaching the substrate to the flange body.

Zweckmäßigerweise schließt der umgebogene Abschnitt mit der ersten Ebene auf einer dem Substrat zugewandten Seite einen Winkel von 90° ein.Expediently, the bent-over section with the first plane encloses an angle of 90 ° on a side facing the substrate.

Zum Sicherstellen eines Anschlages des umgebogenen Abschnittes am Substrat schließt der umgebogene Abschnitt mit der ersten Ebene auf einer dem Substrat zugewandten Seite einen Winkel von kleiner 90°, insbesondere 86° bis 80°, ein.To ensure a stop of the bent portion on the substrate, the bent portion with the first plane on an angle to the substrate side facing an angle of less than 90 °, in particular 86 ° to 80 °, a.

Die Erfindung wird im Folgenden anhand der Zeichnung näher erläutert. Diese zeigt in:

Fig. 1
eine bevorzugte Ausführungsform eines erfindungsgemäßen HF-Abschlusswiderstandes in Aufsicht,
Fig. 2
den HF-Abschlusswiderstand gemäß Fig. 1 in Seitenansicht,
Fig.3
einen Flanschkörper für einen erfindungsgemäßen HF-Abschlusswiderstand in Aufsicht,
Fig.4
den Flanschkörper gemäß Fig. 3 in Seitenansicht,
Fig. 5
das Detail Z von Fig. 4 und
Fig. 6
den Flanschkörper gemäß Fig. 3 in abgerollter Darstellung.
The invention will be explained in more detail below with reference to the drawing. This shows in:
Fig. 1
a preferred embodiment of an RF termination resistor according to the invention in supervision,
Fig. 2
the RF terminator according to Fig. 1 in side view,
Figure 3
a flange body for an inventive RF termination in supervision,
Figure 4
the flange according to Fig. 3 in side view,
Fig. 5
the detail Z of Fig. 4 and
Fig. 6
the flange according to Fig. 3 in unrolled representation.

Die in den Fig. 1 und 2 dargestellte, bevorzugte Ausführungsform eines erfindungsgemäßen HF-Abschlusswiderstandes in Flanschbauweise umfasst einen Flanschkörper 10 auf dem ein Substrat 12 angeordnet ist. Auf einer Oberseite 14 des Substrats 12 ist eine Schichtstruktur angeordnete, die folgendes aufweist, eine Widerstandschicht 16 zum Umwandeln von HF-Energie in Wärme, eine Eingangsleiterbahn 18 zum Zuführen von HF-Energie und eine Masseanschlussleiterbahn 20 zum elektrischen Verbinden mit einem Massekontakt auf dem Flanschkörper 10. Die Eingangsleiterbahn 18 ist mit einem ersten Ende der Widerstandsschicht 16 elektrisch verbunden. Die Masseanschlussleiterbahn 20 ist mit einem dem ersten Ende gegenüberliegenden zweiten Ende der Widerstandsschicht 16 elektrisch verbunden. Das Substrat 12 liegt mit einer von der Schichtstruktur 16, 18, 20 abgewandten Auflageseite 22 auf dem Flanschkörper 10 auf.The in the Fig. 1 and 2 illustrated, preferred embodiment of an inventive RF termination resistor in flange construction comprises a flange 10 on which a substrate 12 is arranged. On a top side 14 of the substrate 12 there is arranged a layer structure comprising a resistance layer 16 for converting RF energy to heat, an input conductor 18 for supplying RF energy and a ground lead 20 for electrical connection to a ground contact on the flange body 10. The input trace 18 is electrically connected to a first end of the resistive layer 16. The ground terminal trace 20 is electrically connected to a second end of the resistance layer 16 opposite the first end. The substrate 12 rests on the flange body 10 with a support side 22 remote from the layer structure 16, 18, 20.

Der Flanschkörper 10 weist eine Kante 24 auf, wobei das Substrat 12 mit der darauf angeordneten Schichtstruktur 16, 18, 20 derart auf dem Flanschkörper 10 angeordnet ist, dass die Masseanschlussleiterbahn 20 der Kante 24 zugewandt ist.The flange body 10 has an edge 24, wherein the substrate 12 with the layer structure 16, 18, 20 arranged thereon is arranged on the flange body 10 such that the ground connection conductor 20 faces the edge 24.

Die Auflageseite 22 des Substrates 12 definiert eine erste Ebene und die Oberseite 14 des Substrates 12 definiert eine zweite Ebene.The support side 22 of the substrate 12 defines a first plane and the top 14 of the substrate 12 defines a second plane.

Wie zusätzlich auch aus den Fig. 3 bis 6 ersichtlich, ist die Kante 24 über einen vorbestimmten Abschnitt in Richtung parallel zur Kante 24 sowie über einen vorbestimmten Abschnitt in Richtung senkrecht zur Kante 24 umgebogen. In der in den Figuren dargestellten, beispielhaften Ausführungsform erstreckt sich der vorbestimmte Abschnitt parallel zur Kante 24 über die gesamte Länge der Kante 24. Dieser vorbestimmte Abschnitt parallel zur Kante 24 kann sich jedoch alternativ auch über lediglich einen Teil der Länge der Kante 24 erstrecken, beispielsweise über eine Länge die der Breite des Substrates 12 in Richtung parallel zur Kante 24 entspricht.As in addition also from the Fig. 3 to 6 can be seen, the edge 24 is over a predetermined portion in the direction parallel to the edge 24 and over a predetermined portion bent in the direction perpendicular to the edge 24. In the exemplary embodiment illustrated in the figures, the predetermined portion extends parallel to edge 24 over the entire length of edge 24. However, this predetermined portion parallel to edge 24 may alternatively extend over only a portion of the length of edge 24, for example over a length corresponding to the width of the substrate 12 in the direction parallel to the edge 24.

Der umgebogene Abschnitt 26 des Flanschkörpers 10 ist derart ausgebildet und umgebogen, dass sich der umgebogene Abschnitt 26 wenigstens in den Raum zwischen der ersten und zweiten Ebene erstreckt. In der dargestellten beispielhaften Ausführungsform erstreckt sich der umgebogene Abschnitt 26 vollständig durch den Raum zwischen der ersten und zweiten Ebene bis zu zweiten Ebene und weiter über die zweite Ebene hinaus. Es ist jedoch auch möglich, dass sich der umgebogene Abschnitt 26 genau bis zur zweiten Ebene erstreckt oder bereits innerhalb des Raumes zwischen der ersten und zweiten Ebene endet.The bent portion 26 of the flange body 10 is formed and bent such that the bent portion 26 extends at least in the space between the first and second planes. In the illustrated exemplary embodiment, the bent portion 26 extends completely through the space between the first and second levels to the second level and further beyond the second level. However, it is also possible for the bent portion 26 to extend to the second plane or to end within the space between the first and second planes.

Das Substrat 12 schlägt mit einer kurzen Seite 28, die die Oberseite 14 des Substrates 12 mit der Auflageseite 22 des Substrates 12 verbindet, an dem umgebogenen Abschnitt 26 des Flanschkörpers 10 an. Bei der kurzen Seite 28 handelt es sich um diejenige Seite des Substrates 12, der die Masseanschlussleiterbahn 20 auf der Oberseite 14 des Substrates 12 zugewandt ist. Um dieses Anschlagen der kurzen Seite 28 an dem umgebogenen Abschnitt 26 des Flanschkörpers 10 in jedem Falle sicher zu stellen, ist es besonders vorteilhaft, dass der umgebogene Abschnitt 26 des Flanschkörpers 10 um mehr als 90° relativ zum Flanschkörper 10 umgebogen ist. Hierbei ergibt sich ein Winkel zwischen dem umgebogenen Abschnitt 26 des Flanschkörpers 10 und der Oberseite des Substrates bzw. der durch diese definierten zweiten Ebene auf einer dem Substrat 12 zugewandten Seite von kleiner als 90°, wie beispielsweise 86° bis 80°. Anders ausgedrückt beträgt ein Winkel 30 zwischen dem umgebogenen Abschnitt 26 des Flanschkörpers 10 und einer Senkrechten 32 der Oberseite 14 des Substrates 12 4° bis 10°.The substrate 12 strikes against the bent portion 26 of the flange body 10 with a short side 28 which connects the upper side 14 of the substrate 12 to the support side 22 of the substrate 12. The short side 28 is the side of the substrate 12 which faces the ground connection conductor 20 on the upper side 14 of the substrate 12. In order to ensure this abutment of the short side 28 on the bent portion 26 of the flange 10 in each case, it is particularly advantageous that the bent portion 26 of the flange 10 is bent over more than 90 ° relative to the flange 10. This results in an angle between the bent portion 26 of the flange 10 and the top of the substrate or defined by this second plane on a substrate 12 side facing smaller than 90 °, such as 86 ° to 80 °. In other words, an angle 30 between the bent portion 26 of the flange body 10 and a perpendicular 32 of the upper surface 14 of the substrate 12 is 4 ° to 10 °.

An dem umgebogenen Abschnitt 26 des Flanschkörpers 10 sind ferner zwei Nasen 34 angeordnet, die über das Ende des umgebogenen Abschnittes 26 hinaus ragen und relativ zum umgebogenen Abschnitt 26 um einen weiteren Winkel 36 von beispielsweise 45° umgebogen sind. Dadurch ragen diese Nasen 34 wieder zurück in den Raum zwischen der ersten und zweiten Ebene. Der Abstand dieser Nasen 34 in Richtung parallel zur Kante 24 des Flanschkörpers 10 entspricht etwa der Breite des Substrates 12 in Richtung parallel zur Kante 24. Dadurch ist die Position des Substrates 12 auf dem Flanschkörper 10 und relativ zum umgebogenen Abschnitt 26 durch Positionieren zwischen den Nasen 34 fixiert und eine Montage des Substrates 12 auf dem Flanschkörper 10 erleichtert.At the bent portion 26 of the flange 10 further two lugs 34 are arranged, which protrude beyond the end of the bent portion 26 and are bent relative to the bent portion 26 by a further angle 36, for example, 45 °. As a result, these lugs 34 project back into the space between the first and second levels. The distance between these lugs 34 in the direction parallel to the edge 24 of the flange 10 corresponds approximately to the width of the substrate 12 in the direction parallel to the edge 24. Thus, the position of the substrate 12 on the flange 10 and relative to the bent portion 26 by positioning between the lugs Fixed 34 and facilitates mounting of the substrate 12 on the flange 10.

Der umgebogenen Abschnitt 26 des Flanschkörpers 10 bildet den Massekontakt für die Masseanschlussleiterbahn 20. Dadurch, dass sich der umgebogenen Abschnitt 26 bis in den Raum zwischen der ersten und zweiten Ebene erstreckt, ist eine elektrische Kontaktierung zwischen der Masseanschlussleiterbahn 20 und dem umgebogenen Abschnitt 26 ohne vollständige Kantenumkontaktierung um die kurze Seite 28 das Substrates 12 herum einfach herstellbar. In der dargestellten, beispielhaften Ausführungsform überragt der umgebogene Abschnitt 26 die zweite Ebene bzw. die Oberseite 14 des Substrates 12, so dass die Herstellung des elektrischen Kontaktes zwischen der Masseanschlussleiterbahn 20 und dem umgebogenen Abschnitt 26 des Flanschkörpers 10 direkt in einer Ebene, nämlich der zweiten Ebene der Oberseite 14 des Substrates 12 erfolgen kann. Dies vereinfacht einerseits die Herstellung dieses elektrischen Kontaktes und verbessert andererseits die elektrischen Eigenschaften des HF-Abschlusswiderstandes, da der Weg der elektrischen Kontaktierung so kurz wie möglich ist und nicht mehr vollständig um eine Kante des Substrates 12 herum führt.The bent portion 26 of the flange body 10 forms the ground contact for the ground lead 20. As the bent portion 26 extends into the space between the first and second planes, electrical contact between the ground lead 20 and the folded portion 26 is incomplete Kantenumkontaktierung to the short side 28, the substrate 12 around easy to produce. In the illustrated exemplary embodiment, the bent-over section 26 projects beyond the second plane or upper side 14 of the substrate 12, so that the establishment of the electrical contact between the ground connection trace 20 and the bent-over section 26 of the flange body 10 takes place directly in one plane, namely the second Level of the top 14 of the substrate 12 can be done. On the one hand, this simplifies the manufacture of this electrical contact and, on the other hand, improves the electrical properties of the RF terminating resistor since the path of the electrical contacting is as short as possible and no longer completely around an edge of the substrate 12.

Eine Abdeckung 38 bedeckt die Schichtstruktur 16, 18, 20 teilweise. Diese Abdeckung ist beispielsweise aus demselben Werkstoff wie das Substrat 12 hergestellt. Hierdurch weist die Abdeckung 38 dieselbe Dielektrizitätskonstante auf, wie der Werkstoff des Substrates 12. Dies beeinflusst die elektrischen Eigenschaften des HF-Abschlusswiderstandes zusätzlich positiv, da das elektrische Feld durch das beidseitige, identische Dielektrikum (12, 38), d.h. Substrat 12 einerseits und Abdeckung 38 andererseits, eng an der Schichtstruktur 16, 18, 20 geführt ist.A cover 38 partially covers the layer structure 16, 18, 20. This cover is made, for example, of the same material as the substrate 12. As a result, the cover 38 has the same dielectric constant as the material of the substrate 12. This additionally influences the electrical properties of the HF terminating resistor positively, since the electric field is influenced by the electric field double-sided, identical dielectric (12, 38), ie substrate 12 on the one hand and cover 38 on the other hand, closely to the layer structure 16, 18, 20 is guided.

Durch den erfindungsgemäßen, verbesserten Aufbau des HF-Abschlusswiderstandes können kostengünstige Substrate 12, d.h. Substrate ohne Kantenumkontaktierung, eingesetzt werden. Der Gesamtaufbau der Flansch-Load gewährleistet die Übertragung von hohen Verlustleitungen unter Einhaltung bestmöglicher breitbandiger HF-Eigenschaften.Due to the improved design of the RF termination resistor according to the present invention, inexpensive substrates 12, i. Substrates without Kantenumkontaktierung be used. The overall structure of the flange load ensures the transmission of high power loss lines while maintaining the best possible broadband RF characteristics.

Der Flanschkörper bzw. das Flanschblech 10 mit dem umgebogenen Abschnitt 26 ist vollständig aus einem Stück gefertigt und beispielsweise ein Stanz-Biege-Teil. Der umgebogenen Abschnitt 26 dient zur Masseverbindung der Widerstandsstruktur 14 mit dem Flanschblech 10. Der konstruktive Gesamtaufbau einschließlich Substratstruktur 12, 16, 18, 20 ist auf eine breitbandige Anwendung mit sehr guten HF-Eigenschaften ausgelegt.The flange body or the flange plate 10 with the bent portion 26 is made entirely from one piece and, for example, a stamped and bent part. The bent portion 26 serves to connect the ground of the resistor structure 14 with the flange plate 10. The overall construction including substrate structure 12, 16, 18, 20 is designed for a broadband application with very good RF properties.

Zur Herstellung einer elektrischen Verbindung zwischen der Masseanschlussleiterbahn 20 auf dem Substrat 12 und dem umgebogenen Abschnitt 26 des Flanschkörpers 10, so dass der Massekontakt für den HF-Abschlusswiderstand hergestellt wird, wird beispielsweise eine Lötverbindung von der Masseanschlussleiterbahn 20 zum umgebogenen Abschnitt 26 hergestellt. Dadurch, dass sich der umgebogenen Abschnitt 26 in besonders vorteilhafter Weise bis zur bzw. über die Oberseite 14 des Substrates 12 (zweite Ebene) hinaus erstreckt, kann diese Lötverbindung einfach, schnell und kostengünstig in der zweiten Ebene der Oberseite 14 des Substrates 12 hergestellt werden.For making an electrical connection between the ground lead 20 on the substrate 12 and the bent portion 26 of the flange 10 so that the ground contact for the RF termination is made, for example, a solder joint is made from the ground lead 20 to the folded portion 26. Due to the fact that the bent-over section 26 extends in a particularly advantageous manner to or over the upper side 14 of the substrate 12 (second plane), this soldered connection can be produced easily, quickly and inexpensively in the second plane of the upper side 14 of the substrate 12 ,

Claims (6)

  1. RF terminating resistor with a flange body (10) and a planar layered structure (16, 18, 20) arranged thereon, which comprises, on an upper face (14) of a substrate (12), a resistor layer (16) for converting RF energy into heat, an input conductor track (18) for supplying RF energy and an earth connection conductor track (20) for electrical connection to an earth contact on the flange body (12), wherein the input conductor track (18) is electrically connected to a first end of the resistor layer (16), the earth connection conductor track (20) is electrically connected to a second end of the resistor layer (16) opposing the first end, and the substrate (12) lies on the flange body (10) with a contact face (22) which faces away from the layered structure (16, 18, 20), characterised in that, at a first edge (24) which faces toward the earth connection conductor track (20) on the substrate (12), over at least one predetermined section in a direction parallel to said edge (24) and a predetermined section in a direction perpendicular to said edge (24), the flange body (10) is bent over such that the bent-over section (26) of the flange body (10) extends into a space between a first plane defined by the contact face (22) of the substrate (12) and a second plane defined by the upper face (14) of the substrate (12), wherein, with one side (28) which connects the contact face (22) of the substrate (12) to the upper face (14) of the substrate (12) and towards which the earth connection conductor track (20) on the upper face (14) of the substrate (12) faces, the substrate abuts the bent-over section (26) of the flange body (10), wherein the bent-over section (26) of the flange body (10) has at least two noses (34), the separation of which in the direction parallel to the first edge (24) of the flange body (10) corresponds to the width of the substrate (12), and which extend into a space between the first plane and the second plane.
  2. RF terminating resistor according to claim 1, characterised in that the bent-over section (26) of the flange body (10) rises from the first plane at least into the second plane or therebeyond, such that at least one section of the bent-over section (26) of the flange body (10) extends in the second plane adjacent to the earth connection conductor track (20).
  3. RF terminating resistor according to at least one of the preceding claims, characterised in that the bent-over section (26) of the flange body (10) has a length in a direction parallel to the first edge (24) which corresponds to at least a width of the substrate (12).
  4. RF terminating resistor according to at least one of the preceding claims, characterised in that the bent-over section (26) encloses an angle of 90° with the first plane on a side facing toward the substrate (12).
  5. RF terminating resistor according to at least one of the claims 1 to 3, characterised in that the bent-over section (26) encloses an angle with the first plane on a side facing towards the substrate (12) of less than 90°, in particular 86° to 80°.
  6. RF terminating resistor according to at least one of the preceding claims, characterised in that an angle (30) between the bent-over section (26) of the flange body (10) and a perpendicular (32) to the upper face (14) of the substrate (12) has a value in the range of 4° to 10°.
EP07819655A 2006-12-12 2007-11-07 Rf terminating resistor of flanged construction Active EP2118910B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006018768U DE202006018768U1 (en) 2006-12-12 2006-12-12 Energy absorbing flange high frequency moving load waveguide has edge bent at right angles towards a substrate
PCT/EP2007/009645 WO2008071271A1 (en) 2006-12-12 2007-11-07 Rf terminating resistor of flanged construction

Publications (2)

Publication Number Publication Date
EP2118910A1 EP2118910A1 (en) 2009-11-18
EP2118910B1 true EP2118910B1 (en) 2010-04-07

Family

ID=37776393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07819655A Active EP2118910B1 (en) 2006-12-12 2007-11-07 Rf terminating resistor of flanged construction

Country Status (8)

Country Link
US (1) US8054157B2 (en)
EP (1) EP2118910B1 (en)
CN (1) CN101523520A (en)
AT (1) ATE463827T1 (en)
CA (1) CA2666483C (en)
DE (2) DE202006018768U1 (en)
TW (1) TWM332921U (en)
WO (1) WO2008071271A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006018768U1 (en) * 2006-12-12 2007-02-15 Rosenberger Hochfrequenztechnik Gmbh & Co.Kg Energy absorbing flange high frequency moving load waveguide has edge bent at right angles towards a substrate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009040A1 (en) * 1989-02-02 1990-08-09 Fujitsu Limited Film resistor terminator
JPH0787130B2 (en) 1990-09-17 1995-09-20 ヒロセ電機株式会社 High frequency termination resistor
SE515262C2 (en) * 1995-02-16 2001-07-09 Abb Research Ltd Device for current limiting and protection against short-circuit currents in an electrical system
JPH11186813A (en) * 1997-12-22 1999-07-09 Fuji Elelctrochem Co Ltd Isolator for microwave
US6794981B2 (en) * 1998-12-07 2004-09-21 Honeywell International Inc. Integratable-fluid flow and property microsensor assembly
FR2852738A1 (en) * 2003-03-19 2004-09-24 Radiall Sa MICROWAVE DEVICE FOR POWER DISSIPATION OR MITIGATION.
DE202005013515U1 (en) * 2005-08-26 2005-11-03 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg High frequency termination resistor for an antenna has a planar structure providing good heat transfer
DE202006018768U1 (en) * 2006-12-12 2007-02-15 Rosenberger Hochfrequenztechnik Gmbh & Co.Kg Energy absorbing flange high frequency moving load waveguide has edge bent at right angles towards a substrate

Also Published As

Publication number Publication date
EP2118910A1 (en) 2009-11-18
CA2666483A1 (en) 2008-06-19
US8054157B2 (en) 2011-11-08
CA2666483C (en) 2016-01-05
WO2008071271A1 (en) 2008-06-19
ATE463827T1 (en) 2010-04-15
US20100066483A1 (en) 2010-03-18
DE502007003432D1 (en) 2010-05-20
DE202006018768U1 (en) 2007-02-15
CN101523520A (en) 2009-09-02
TWM332921U (en) 2008-05-21

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