EP0795207A1 - Distributeur de commutation haute frequence - Google Patents

Distributeur de commutation haute frequence

Info

Publication number
EP0795207A1
EP0795207A1 EP96927657A EP96927657A EP0795207A1 EP 0795207 A1 EP0795207 A1 EP 0795207A1 EP 96927657 A EP96927657 A EP 96927657A EP 96927657 A EP96927657 A EP 96927657A EP 0795207 A1 EP0795207 A1 EP 0795207A1
Authority
EP
European Patent Office
Prior art keywords
connections
distributor
circuit
switch
distributor according
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.)
Granted
Application number
EP96927657A
Other languages
German (de)
English (en)
Other versions
EP0795207B1 (fr
Inventor
Claus Hahn
Klaus KÖHNE
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.)
Ge Tronic Geislinger Electronic GmbH Nachrichtentechnik
Original Assignee
Ge Tronic Geislinger Electronic GmbH Nachrichtentechnik
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 Ge Tronic Geislinger Electronic GmbH Nachrichtentechnik filed Critical Ge Tronic Geislinger Electronic GmbH Nachrichtentechnik
Publication of EP0795207A1 publication Critical patent/EP0795207A1/fr
Application granted granted Critical
Publication of EP0795207B1 publication Critical patent/EP0795207B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/15—Auxiliary devices for switching or interrupting by semiconductor devices

Definitions

  • the invention relates to a high-frequency switching distributor for switching between a plurality of inputs and a plurality of outputs, in particular a plurality of inputs which can be connected to antenna converters (LNBs) and a plurality of outputs which can be connected to receivers.
  • LNBs antenna converters
  • Such high-frequency switching distributors are known from the prior art and are widely used in connection with parabolic antennas for satellite reception in the field of consumer electronics. In the case of these, intersections on the circuit boards which are often complex to produce result, since in the HF range the entire conductor tracks on the circuit boards must always be guided at a defined distance from a ground plane in order to obtain a uniform characteristic impedance.
  • intersections are complex to implement and always have the disadvantage that overcoupling in the intersection area cannot be avoided.
  • the known high-frequency distributors have the disadvantage that they have a very large volume.
  • the invention is therefore based on the object of providing a switching distributor which is constructed as simply as possible and without crossings and is compact.
  • This object is achieved according to the invention in a high-frequency switching distributor of the type described at the outset in that the switching distributor has at least two distributor circuits arranged on at least one circuit board, in that each distributor circuit has conductors at a defined distance from a ground as conductor tracks which are arranged on a dielectric layer, that each of the two distributor circuits is arranged in one of at least two superimposed levels, that each of the distributor circuits has a first connection, a branch circuit branching to N branch lines connected to the first connection, each having a switch located in each of the N branch lines and N has second connections, each of which is connected to one of the N branch lines, and that in each case one of the N second connections of a distributor circuit with another of the N second connections of the other ren distribution circuit is connected.
  • the solution according to the invention has the great advantage that, by arranging a distributor circuit, for example a 1 in N or an N in 1 distributor circuit, on a single level, this control circuit can be implemented without crossing and that the arrangement of the various distributor circuits in different superimposed levels offers the possibility of making the switching distributor according to the invention as compact as possible.
  • a distributor circuit for example a 1 in N or an N in 1 distributor circuit
  • the lines routed at a defined distance from the ground on the circuit board are preferably either microstrip lines or coplanar lines.
  • the switching distributor according to the invention can be made particularly compact when the levels in which the individual distributor circuits are arranged are arranged parallel to one another.
  • a particularly compact embodiment of the solution according to the invention provides that the two distributor circuits are arranged on opposite sides of a common ground layer on a three-layer circuit board, so that one distributor circuit is arranged on the top and the other distributor circuit on the underside of the three-layer circuit board and the ground layer represents good RF shielding, so that mutual interference between the distribution circuits is substantially avoided.
  • this solution concept can be continued with more than two distributor circuits in that several three-layer boards are provided, on each of which the distributor circuits are arranged on the top and on the bottom.
  • branch circuit With regard to the branch circuit, no further details have been given in connection with the solution according to the invention.
  • This branch circuit could, for example be designed as a Wilkinson divider, directional coupler or ferrite distributor or collector.
  • a particularly advantageous exemplary embodiment provides, however, that the branching circuit is designed as a resistance branching circuit, since such a branching of resistance offers the possibility of making the branching circuit itself as compact as possible.
  • the switches in the distributor circuits are designed as semiconductor switches.
  • Such semiconductor switches can preferably be controlled by the receivers applied voltages or signals via the output side of the switching distributor in a manner already known from the prior art.
  • the ground layer In order to achieve the best possible shielding of the different distribution circuits from one another, it is preferably provided that the ground layer, with the exception of the regions of the first and the second connections, runs without HF penetration.
  • connections between the second connections of different distributor circuits can be implemented as desired. For example, it would be conceivable to connect each of the second connections via a corresponding cable to an input or output of the switching distributor according to the invention and thus one via the input or output itself To create a connection between one of the second connections of one distribution circuit and one of the N connections of the other distribution circuits.
  • a particularly advantageous exemplary embodiment provides, however, that one of the N second connections of the one distributor circuit is connected via a level branch line to one of the N second connections of the other distributor circuit or of the other distributor circuits to form a common connection. This means that the shortest possible connection between the individual second connections is to be established via this level branching line.
  • level branch lines run transversely to the ground layer.
  • the level branch lines can be routed particularly advantageously if they run parallel to one another, so that the overcoupling between the individual level branch lines is as low as possible.
  • a particularly advantageous solution provides that the level branch lines run perpendicular to the ground layer.
  • a particularly expedient solution provides that a ground shield is provided between adjacent level branch lines, which in the simplest case is formed by a line running between the level branch lines, preferably running parallel to them.
  • the level branch lines could in turn be designed as microstrip lines arranged on a circuit board.
  • the level branch lines are constructed as circuit-free lines.
  • the level branch lines are designed as HF through-plugs or as pin connections.
  • the level branch lines are designed as HF through-plugs and in the case of two circuit boards arranged at a distance from one another as pin connections.
  • level branch lines that can be implemented as simply as possible, it is advantageous if the level branch lines lie in one branch level, since this enables a particularly simple connection between the level branch lines and the respective second connections of the distributor circuit.
  • the level branch lines run in the branching plane without crossing.
  • the N second connections of both distributor circuits are opposite one another in the case of a three-layer circuit board.
  • the N second connections are preferably each arranged mirror-symmetrically to the ground layer.
  • the N second connections of both distributor circuits are arranged in a second connection row of the circuit board, the second connection row preferably being located in the branching plane.
  • the N second connections are arranged inversion-symmetrically to the inversion axis.
  • the N second connections are also arranged in the second row of connections at substantially constant distances from one another.
  • first connections of both distribution circuits are arranged in a first connection row when projecting vertically onto one of the levels and thus do not coincide with one another when projecting onto one of the levels.
  • the first connections in the first connection row are likewise preferably arranged at substantially constant distances from one another.
  • first and the second row of connections run parallel to each other opposite side edges of the circuit board and in particular are arranged close to it.
  • the first connection is at a first distance from a mirror plane in the case of a distributor circuit and the one in a different distributor circuit is the first connection has a second distance from a mirror plane running through the inversion axis, so that all of the first all together when the circuit board with the first distribution circuit is rotated through 180 ° and when the circuit board with the second distribution circuit is rotated through 180 ° Connections of all distribution circuits have a distance from one another when they are projected onto a plane.
  • circuit boards have openings for pin connections running perpendicular to the planes and leading to the individual first connections.
  • each circuit board has a first row of connections with openings on both sides of the mirror plane at a first and second distance, which are preferably arranged in a first row of connections.
  • the openings have an equidistant distance from one another.
  • the first row of connections and the second row of connections are expediently arranged such that the connections lie one above the other in the stack. It is particularly expedient if the N second connections of the second connection rows are connected to one another via level branching lines running transversely to the circuit boards.
  • a particularly expedient solution when using two circuit boards provides that the two circuit boards are constructed identically, and a particularly expedient contacting of the circuit boards can be achieved if one of the circuit boards in the stack is arranged rotated by 180 ° about the inversion axis relative to the other is. This means that a second circuit board design can be saved and one circuit board can be produced with twice the number of items and thus more efficiently.
  • each of the first connections is connected to one input of the switching distributor and that each of the N second connections of each distribution circuit is connected to one of the outputs.
  • the individual distributor circuits are designed as 1 in N distributors.
  • each of the first connections is connected to an output and each of the N second connections of a distributor circuit is connected to an input.
  • the individual distributor circuits are N in 1 distributors.
  • the number of Distribution circuits correspond to the number of outputs if this is less than the number of inputs, or to the number of inputs if it is less than the number of outputs.
  • Figure 1 is a schematic representation of a first
  • Embodiment of a switching distributor according to the invention without a housing and with distributor circuits shown lifted off the circuit board;
  • FIG. 2 shows a schematic illustration of the switching distributor according to the invention with a cross-sectioned housing and housing broken away to the base area;
  • Figure 3 is a schematic representation similar to Figure 1 of a second embodiment
  • Figure 4 is a schematic representation of a third
  • Figure 5 is a schematic representation of a fourth
  • Figure 6 is a schematic representation of a fifth
  • a first exemplary embodiment of a high-frequency switching distributor according to the invention shown in FIG. 1, comprises a three-layer circuit board, designated as a whole by 10, which has a ground layer 12, on the upper side of which a dielectric layer 14 and on the underside a dielectric layer 16 are arranged.
  • Conductor tracks 18 or 28 of distributor circuits designated as a whole with 22 or 24 now run on these dielectric layers 14 and 16 as microstrip lines.
  • the conductor tracks 18, 28 designed as microstrip lines have a uniform characteristic impedance due to the dielectric 14 and 16 for high frequency lying between the common ground layer 12.
  • Each of the distributor circuits 22 and 24, which are shown in FIG. 1 for clarification of the individual elements, separated from the circuit board 10, comprises a first connection EA, from which a conductor track 18 leads to an amplifier V, a branch circuit 26, which is a comprises conductor track 28a connected to amplifier V, which branches into N conductor tracks 28b with resistors 30 arranged in them, so that branching circuit 26 is designed as a resistor branching circuit.
  • Each of the N conductor tracks 28b can be connected via a switch 32 to one of N second connections ZA, the switches 32 preferably being designed as semiconductor switches.
  • the total of N connections ZA are arranged in the form of a second connection row 34 near a side edge 36 of the circuit board 10.
  • all N second connections ZA X of the upper distribution circuit 22 arranged in a plane 38 and all N second connections ZA 2 of the lower distribution circuit 24 lying in a plane 40 are arranged in pairs mirror-symmetrically to a plane 42 in which the ground layer 12 lies, so that each of the N second connections ZA X of the upper distributor circuit 22 can be connected to the corresponding connection of the N second connections ZA 2 of the lower distributor circuit 24 in each case via a connecting line 44 running perpendicular to the plane 42, the connecting line 44 being contact-free through an opening 46 runs through in the mass layer 12.
  • the first connection EAj of the upper distributor circuit 22 and the first connection EA 2 of the lower distributor circuit 24 are arranged on opposite sides and at the same distance from a mirror plane 50 which is perpendicular to the Levels 38 to 42 and perpendicular to the second row of connections 34, preferably approximately in the middle of the circuit board 10, so that the first connections Eh ⁇ and EA 2 lie on different sides of the mirror plane 50.
  • a housing 60 of the high-frequency switching distributor according to the invention is provided with a bottom 62, on which a row of pins 64 is arranged in the area of the N second connections ZA 2 and ZA 2 , which are located above the bottom 62 and which can be plugged through the circuit board 10 and conductively connected to the second connections ZA- L and ZA 2 , the pins 64 simultaneously forming the connecting lines 44.
  • each of the pins 64 is connected to an output line 66, which leads to the corresponding output 70, so that the high-frequency switching distributor has a total of N outputs 70, which are designed, for example, as customary high-frequency connection plugs or sockets.
  • first connections EAj and EA 2 are arranged on the bottom 62 in the area of the first connections EAj and EA 2 , which can also be plugged through the circuit board 10, the first connections EA X and EA 2 preferably also having a first connection row 72 form which are arranged longitudinally and close to a side edge 78 opposite the side edge 36 of the circuit board 10.
  • the pins 74 are in turn connected to inputs 80 of the high-frequency switching distributor by input lines 76.
  • the pins 64 and 74 preferably serve not only to make contact with the circuit board 10, but also at the same time to fix it.
  • a distributor circuit 122 and 124 which likewise has the switches 32 connected to the second connections ZA, which are then followed by the branching circuit 26 with the N conductor tracks 28b and with the conductor track 28a is, and then the amplifier V follows, which in turn is then in turn connected via the conductor 18 to the first terminal EA.
  • the resistors 30 are arranged in the distributor circuits 122, 124 between the second connections ZA and the switches 32.
  • the amplifier V in the distributor circuits 122 and 124 amplifies the signal arriving via the conductor track 28a and indicates the amplified signal the conductor track 18 and thus to the respective first connection EA.
  • the second exemplary embodiment is designed in the same way as the first exemplary embodiment, so that reference is made in full to the statements in this regard.
  • a four in four switching distributor comprises in total each of four levels 38, 40, 138, 140 each have a distributor circuit 222 or 224.
  • the distributor circuit 222 is in principle constructed identically to the distributor circuit 122, while the distributor circuit 224 differs from the distributor circuit 222 in that the first connection EA 2 is at a distance AB2 from the Mirror plane 50 is arranged, which is a third of the distance ABI, with which the first connection EA- L of the distributor circuit 222 is arranged from the mirror plane 50.
  • the connection EA 2 is preferably arranged on the side of the mirror plane 50 opposite the first connection EA X.
  • the four in four switch distributors can be produced from two identical switch boards 210 with identical distributor circuits 222, 224, 222 *, 224 *, the second switch board 210 * compared to the first switch board 210 is arranged rotated by 180 ° about a symmetry axis 51 lying in the mirror plane 50, so that the first connections EA- ⁇ * and EA 2 * are mirror-inverted with respect to the mirror plane 50 and thus all first connections EA ! , EA 2 , EA X * and EA 2 * are in different positions in the first connection row 72.
  • the level branches 244 can also be used in a simple manner as lines which run perpendicular to the levels 38 and 40 or 38 * and 40 * and extend in the branching level 82, preferably pin lines , be formed so that in this case the signals present at the inputs 280 are distributed to all distributor circuits 222, 224, 222 * and 224 * via these level branches 244.
  • the level branches 244 pin connections which are not identical, with the pins 264 of the housing projecting from the bottom 62, which in the exemplary embodiment according to FIG. 4 only contact one of the two circuit boards 210 *.
  • the outputs 270 are also connected directly to pins 273 protruding from the bottom 62, which likewise only contact one of the two circuit boards 210 or 210 ', the pins 273 being in direct contact with the lines 274 via connecting conductor tracks 276 stand.
  • the second connections ZA ⁇ and ZA 2 and ZA -, * and ZA 2 * are preferably connected to one another with through contacts 243 passing through the respective circuit board 210 or 210 *.
  • ground lines 245 and 275 are preferably arranged between two adjacent lines, which lead in particular with the respective ones to the first and second connections EA and ZA Lines form parallel RF lines with the desired characteristic impedance and connect the ground layers 12 and 12 * to one another.
  • the four branching circuits 322, 324, 322 * and 324 * are connected in the same way as described in the third exemplary embodiment, so that reference is made in full to the statements relating to the third exemplary embodiment.
  • a four in eight switch distributor is shown, in which a distributor circuit 422, 424, 422 *, 424 * is also arranged in four levels 38, 40, 38 * and 40 *
  • all the second connections ZA are connected to one another via the level branches 444, which in turn are then connected, in this case to the outputs 470, while one of the inputs 480 is connected to one of the first connections EA of the four distribution circuits 422, 424, 422 *, 424 * is connected.
  • circuit boards 410 and 410 * are arranged in a manner analogous to that of the circuit boards 310 and 310 * in the fourth exemplary embodiment rotated relative to one another by 180 °, so that the same circuit board with the same configuration can be used twice in both exemplary embodiments.

Landscapes

  • Details Of Television Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

En vue de perfectionner un distributeur de commutation haute fréquence de telle façon que celui-ci présente une structure la plus simple possible et exempte de croisements, il est prévu, conformément à l'invention, que le distributeur de commutation présente au moins deux circuits de distribution disposés sur au moins une plaque à circuits, chacun des deux circuits de distribution soit disposé dans l'un au moins de deux plans superposés, chacun des circuits de distribution présente une première borne, une ligne connectée à la première borne, un circuit de branchement ramifié en N branches, ayant un commutateur dans chacune des N branches, ainsi que N deuxièmes bornes, dont chacune est connectée avec l'une des N branches, chacune des N deuxièmes bornes d'un circuit de distribution étant connectée à l'une des N deuxièmes bornes de l'autre circuit de distribution.
EP96927657A 1995-08-30 1996-08-02 Distributeur de commutation haute frequence Expired - Lifetime EP0795207B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19531951 1995-08-30
DE19531951A DE19531951C1 (de) 1995-08-30 1995-08-30 Hochfrequenzschaltverteiler
PCT/EP1996/003404 WO1997008771A1 (fr) 1995-08-30 1996-08-02 Distributeur de commutation haute frequence

Publications (2)

Publication Number Publication Date
EP0795207A1 true EP0795207A1 (fr) 1997-09-17
EP0795207B1 EP0795207B1 (fr) 2000-04-26

Family

ID=7770793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96927657A Expired - Lifetime EP0795207B1 (fr) 1995-08-30 1996-08-02 Distributeur de commutation haute frequence

Country Status (5)

Country Link
US (1) US5834990A (fr)
EP (1) EP0795207B1 (fr)
AU (1) AU6741296A (fr)
DE (2) DE19531951C1 (fr)
WO (1) WO1997008771A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014468A3 (fr) * 1998-12-21 2001-11-07 Hughes Electronics Corporation Matrice hyperfréquence de commutation flexible
US6208219B1 (en) * 1999-05-12 2001-03-27 Samuel Singer Broadband RF circuits with microstrips laid out in randomly meandering paths
JP2009130812A (ja) * 2007-11-27 2009-06-11 Sharp Corp デュアルチャンネル放送受信機及びそれを備えた携帯端末
US20140062613A1 (en) 2011-10-31 2014-03-06 Technology Service Corporation Systems and methods for high power rf channel selection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321717A (en) * 1965-09-07 1967-05-23 Willis H Harper Low-loss, broadband, programmable monopulse beam-selector switch
US3813497A (en) * 1972-04-12 1974-05-28 Communications Satellite Corp Microwave multiplex switch
FR2226094A5 (fr) * 1972-08-07 1974-11-08 Labo Cent Telecommunicat
US4525689A (en) * 1983-12-05 1985-06-25 Ford Aerospace & Communications Corporation N×m stripline switch
US4779065A (en) * 1987-04-28 1988-10-18 General Electric Company Microwave signal routing matrix
US5053731A (en) * 1990-09-12 1991-10-01 Hewlett-Packard Company Software reconfigurable transmission line apparatus
US5446424A (en) * 1994-05-18 1995-08-29 Ail Systems, Inc. Microwave crosspoint blocking switch matrix and assembly employing multilayer stripline and pin diode switching elements

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9708771A1 *

Also Published As

Publication number Publication date
US5834990A (en) 1998-11-10
DE59605048D1 (de) 2000-05-31
AU6741296A (en) 1997-03-19
EP0795207B1 (fr) 2000-04-26
WO1997008771A1 (fr) 1997-03-06
DE19531951C1 (de) 1997-02-06

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