EP0262391A2 - Arrangement for connecting several transmitters and receivers - Google Patents

Arrangement for connecting several transmitters and receivers Download PDF

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Publication number
EP0262391A2
EP0262391A2 EP87112361A EP87112361A EP0262391A2 EP 0262391 A2 EP0262391 A2 EP 0262391A2 EP 87112361 A EP87112361 A EP 87112361A EP 87112361 A EP87112361 A EP 87112361A EP 0262391 A2 EP0262391 A2 EP 0262391A2
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EP
European Patent Office
Prior art keywords
circulator
transmitter
receivers
chain
receiver
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
EP87112361A
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German (de)
French (fr)
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EP0262391B1 (en
EP0262391A3 (en
Inventor
Manfred Dipl.-Ing. Seitter (Fh)
Dieter Dipl.-Ing. Rickman
Gerhard Dipl.-Ing. Hirsch (Fh)
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Bosch Telecom GmbH
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ANT Nachrichtentechnik GmbH
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Publication of EP0262391A2 publication Critical patent/EP0262391A2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies

Definitions

  • the present invention relates to an arrangement for connecting several transmitters and receivers assigned to different frequency channels to a common antenna with the aid of circulators connected in a chain.
  • Such an arrangement is e.g. known from DE-PS 26 41 875.
  • the invention is based on the object of specifying an arrangement of the type mentioned at the outset, which has a small-volume design and in which the transmitted message signals are attenuated as little as possible.
  • each according to the invention is a transmitter / receiver couple connected to a circulator arm each within a circulator chain connected to the antenna. This saves a considerable number of circulators compared to the prior art, which has a particularly advantageous effect on the space requirement of such an arrangement, for example used in directional radio stations.
  • the filter branching W1, ..., Wn has two frequency passbands, one of which is tuned to the frequency channel of the connected transmitter S1, ..., Sn and the other to the frequency channel of the connected receiver E1, ..., En . All other frequency channels from neighboring transmitter / receiver pairs are reflected at the filter junction.
  • a reception signal picked up by the antenna A and intended for the receiver E2 is first switched through from the first circulator Z1 to the last circulator Zn-1, then from the last circulator Zn -1 of the chain connected to the filter branch Wn of the last transmitter / receiver pair Sn / En, reflected on it and fed back to the last circulator Zn-1, which forwards it back to the penultimate circulator.
  • the received signal finally reaches Refle xions on all the filter branches that are not tuned to its frequency band, from the end of the circulator chain back to the crossover that is tuned to pass for the received signal frequency.
  • the arrangement of the invention can be easily supplemented by further transmitter / receiver pairs by inserting one or more circulators with transmitter / receiver pairs into the circulator chain. This does not change the principle that all signal transmission paths have the same number of circulator passes.

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  • Transceivers (AREA)
  • Radio Relay Systems (AREA)

Abstract

A low-attenuation and small-volume arrangement for connecting several transmitters (S1...Sn), allocated to different frequency channels, and receivers (E1...En) to a common antenna (A) with the aid of circulators (Z1...Zn-1) connected in a chain is constructed such that in each case one transmitter (S1...Sn) and one receiver (E1...En) are jointly connected via one filter branch (W1...Wn) to one of the circulator arms (Fig.). <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Anordnung zum Aufschalten mehre­rer verschiedenen Frequenzkanälen zugeordneter Sender und Empfänger auf eine gemeinsame Antenne mit Hilfe von in Kette geschalteten Zirkulato­ren.The present invention relates to an arrangement for connecting several transmitters and receivers assigned to different frequency channels to a common antenna with the aid of circulators connected in a chain.

Eine derartige Anordnung ist z.B. aus der DE-PS 26 41 875 bekannt. Hier­bei sind zur Aufschaltung der Sender und Empfänger auf eine Antenne sehr viele Zirkulatoren vorhanden, die die Anordnung sehr großräumig machen.Such an arrangement is e.g. known from DE-PS 26 41 875. There are a large number of circulators for connecting the transmitters and receivers to an antenna, which make the arrangement very spacious.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Anordnung der ein­gangs genannten Art anzugeben, die eine kleinvolumige Bauform hat und in der die übertragenen Nachrichtensignale eine möglichst geringe Dämpfung erfahren.The invention is based on the object of specifying an arrangement of the type mentioned at the outset, which has a small-volume design and in which the transmitted message signals are attenuated as little as possible.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention, this object is achieved by the features of claim 1.

Zweckmäßige Ausführungen der Erfindung gehen aus den Unteransprüchen hervor.Appropriate embodiments of the invention emerge from the subclaims.

Im Gegensatz zum Stand der Technik, bei dem jeder Sender und jeder Empfänger über einen eigenen Zirkulator auf eine gemeinsame Antenne geschaltet werden, sind nach der Erfindung jeweils ein Sender-/Empfänger­ paar an je einen Zirkulatorarm innerhalb einer mit der Antenne verbunde­nen Zirkulatorkette geschaltet. Dadurch wird gegenüber dem Stand der Technik eine erhebliche Zahl von Zirkulatoren eingespart, was sich insbe­sondere vorteilhaft auf den Platzbedarf einer solchen z.B. in Richtfunksta­tionen eingesetzten Anordnung auswirkt.In contrast to the prior art, in which each transmitter and each receiver are connected to a common antenna via their own circulator, each according to the invention is a transmitter / receiver couple connected to a circulator arm each within a circulator chain connected to the antenna. This saves a considerable number of circulators compared to the prior art, which has a particularly advantageous effect on the space requirement of such an arrangement, for example used in directional radio stations.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird nachfolgend die Erfindung näher erläutert.Based on an embodiment shown in the drawing, the invention is explained in more detail below.

Die in der Figur dargestellte Anordnung besteht aus einer Kettenschaltung mehrerer Zirkulatoren Z1...Zn-1, einer an einen Arm des ersten Zirkulators Z1 der Kette angeschlossenen Antenne A und mehreren verschiedenen Fre­quenzkanälen zugeordneten Sendern S1...Sn und Empfängern E1...En. An je­den Zirkulatorarm, der nicht mit einem benachbarten Zirkulator in der Kette oder mit der Antenne A verbunden ist, ist ein Sender-/Empfänger­paar S1/E1,...,Sn/En angeschlossen. Und zwar sind bei jedem Sender-/Emp­fängerpaar der Sender S1,...,Sn und der Empfänger E1,...,En über eine Fil­terverzweigung W1,...,Wn auf einen gemeinsamen an einen Zirkulatorarm angeschlossenen Ausgang bzw. Eingang geschaltet. Dabei weist die Filter­verzweigung W1,...,Wn zwei Frequenzdurchlaßbereiche auf, von denen der eine auf den Frequenzkanal des angeschlossenen Senders S1,...,Sn und der andere auf den Frequenzkanal des angeschlossenen Empfängers E1,...,En abgestimmt ist. Alle anderen Frequenzkanäle von benachbarten Sender-/­Empfängerpaaren werden an der Filterverzweigung reflektiert.The arrangement shown in the figure consists of a chain connection of several circulators Z1 ... Zn-1, an antenna A connected to an arm of the first circulator Z1 of the chain and several transmitters S1 ... Sn and receivers E1 ... assigned to different frequency channels. En. A transmitter / receiver pair S1 / E1, ..., Sn / En is connected to each circulator arm that is not connected to an adjacent circulator in the chain or to antenna A. In each transmitter / receiver pair, the transmitters S1, ..., Sn and the receivers E1, ..., En are connected via a filter branch W1, ..., Wn to a common output or input connected to a circulator arm . The filter branching W1, ..., Wn has two frequency passbands, one of which is tuned to the frequency channel of the connected transmitter S1, ..., Sn and the other to the frequency channel of the connected receiver E1, ..., En . All other frequency channels from neighboring transmitter / receiver pairs are reflected at the filter junction.

Beispielsweise wird bei den in der Zeichnung angegebenen Drehrichtungen der Zirkulatoren Z1...Zn-1 ein von der Antenne A aufgenommenes, für den Empfänger E2 bestimmtes Empfangssignal zunächst vom ersten Zirkulator Z1 bis zum letzten Zirkulator Zn-1 durchgeschaltet, dann vom letzten Zir­kulator Zn-1 der Kette auf die Filterverzweigung Wn des letzten Sender-/­Empfängerpaares Sn/En geschaltet, daran reflektiert und wieder dem letz­ten Zirkulator Zn-1 zugeführt, der es an den vorletzten Zirkulator zurück­leitet. Auf diese Weise gelangt schließlich das Empfangssignal nach Refle­ xionen an all den Filterverzweigungen, die nicht auf sein Frequenzband ab­gestimmt sind, vom Ende der Zirkulatorkette zurück bis zu der Frequen­zweiche, die für die Empfangssignalfrequenz auf Durchlaß abgestimmt ist.For example, in the directions of rotation of the circulators Z1 ... Zn-1 shown in the drawing, a reception signal picked up by the antenna A and intended for the receiver E2 is first switched through from the first circulator Z1 to the last circulator Zn-1, then from the last circulator Zn -1 of the chain connected to the filter branch Wn of the last transmitter / receiver pair Sn / En, reflected on it and fed back to the last circulator Zn-1, which forwards it back to the penultimate circulator. In this way, the received signal finally reaches Refle xions on all the filter branches that are not tuned to its frequency band, from the end of the circulator chain back to the crossover that is tuned to pass for the received signal frequency.

Ein Sendesignal, das von der Antenne A abgestrahlt werden soll, wird bei dem in dem vorliegenden Ausführungsbeispiel vorgegebenen Zirkulatordreh­sinn durch die Zirkulatorkette bis zum ersten Zirkulator Z1 der Kette und von diesem auf die Antenne A durchgeschaltet. Der Weg des Signals führt dabei über alle das Signal reflektierenden Filterverzweigungen derjenigen Sender-/Empfängerpaare, die zwischen dem das Signal abgebenden Sender und der Antenne an die Zirkulatorkette angeschlossen sind.A transmission signal which is to be emitted by antenna A is, in the circulator direction of rotation specified in the present exemplary embodiment, switched through through the circulator chain to the first circulator Z1 of the chain and from there to antenna A. The path of the signal leads over all filter branches reflecting the signal of those transmitter / receiver pairs which are connected to the circulator chain between the transmitter which emits the signal and the antenna.

Sind zwei Funkstationen einer Nachrichtenübertragungsstrecke mit Anord­nungen der oben beschriebenen und in der Figur dargestellten Art ausge­stattet, so ist gewährleistet, daß alle den vorhandenen Frequenzkanälen zu­geordneten Signalübertragungswege zwischen Sendern und Empfängern der beiden Funkstationen die gleiche Zahl von Zirkulatordurchläufen aufweisen, also die gleiche Dämpfung erfahren. Denn die Gesamtzahl der Zirkulatoren, die ein von einem Sender in einer Funkstation abgegebenes Singal bis zur abstrahlenden Antenne dieser Funkstation durchläuft, und der Zirkulatoren, die das in einer anderen Funkstation empfangene Signal von der Antenne bis zum Empfänger duchläuft, ist für alle Frequenzkanäle gleich groß.If two radio stations of a communication link are equipped with arrangements of the type described above and shown in the figure, it is ensured that all signal transmission paths assigned to the existing frequency channels between transmitters and receivers of the two radio stations have the same number of circulator passes, that is to say they experience the same attenuation. Because the total number of circulators that a signal emitted by a transmitter in one radio station travels to the radiating antenna of this radio station and the circulators that the signal received in another radio station passes through from the antenna to the receiver is the same for all frequency channels .

Die Anordnung der Erfindung kann auf einfache Weise durch weitere Sen­der-/Empfängerpaare ergänzt werden, indem ein oder mehrerer Zirkulato­ren mit Sender-/Empfängerpaaren in die Zirkulatorkette eingefügt werden. Dadurch ändert sich nicht das Prinzip, daß alle Signalübertragungswege die gleiche Anzahl von Zirkulatordurchläufen aufweisen.The arrangement of the invention can be easily supplemented by further transmitter / receiver pairs by inserting one or more circulators with transmitter / receiver pairs into the circulator chain. This does not change the principle that all signal transmission paths have the same number of circulator passes.

Claims (4)

1. Anordnung zum Aufschalten mehrer verschiedenen Frequenzkanälen zuge­ordneter Sender und Empfänger auf eine gemeinsame Antenne mit Hilfe von in Kette geschalteten Zirkulatoren, dadurch gekennzeichnet, daß je­weils ein Sender (S1...Sn) und ein Empfänger (E1...En) gemeinsam über eine Filterverzweigung (W1...Wn) an einen der Zirkulatorarme ange­schlossen sind.1. Arrangement for connecting several different frequency channels assigned transmitters and receivers to a common antenna with the help of circulators connected in chain, characterized in that a transmitter (S1 ... Sn) and a receiver (E1 ... En) together via a filter branch (W1 ... Wn) is connected to one of the circulator arms. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß bei n (n= 1, 2, 3 ...) Sender-/Empfängerpaaren (S1/E1...Sn/En) die Zirkulatorkette aus n-1 Dreiarmzirkulatoren (Z1...Zn-1) besteht.Arrangement according to claim 1, characterized in that with n (n = 1, 2, 3 ...) transmitter / receiver pairs (S1 / E1 ... Sn / En) the circulator chain consisting of n-1 three-arm circulators (Z1 ... Zn-1) exists. 3. Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß alle Zirkulatoren (Z1...Zn-1) der Zirkulatorkette die gleiche Drehrichtung haben.3. Arrangement according to claim 1 or 2, characterized in that all circulators (Z1 ... Zn-1) of the circulator chain have the same direction of rotation. 4. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekenn­zeichnet, daß bei ihren Einsatz in zwei Funkstationen einer Nachrich­tenübertragungsstrecke, die Sender (S1...Sn) und Empfänger (E1...En) in den beiden Funkstationen so an die Zirkulatorketten angeschaltet sind, daß alle Signalübertragungswege zwischen Sendern (S1...Sn) und Empfän­gern (E1...En) der beiden Funkstationen die gleiche Zahl von Zirkulator­durchläufen aufweisen.4. Arrangement according to one of the preceding claims, characterized in that when used in two radio stations of a communication link, the transmitter (S1 ... Sn) and receiver (E1 ... En) in the two radio stations are connected to the circulator chains that all signal transmission paths between transmitters (S1 ... Sn) and receivers (E1 ... En) of the two radio stations have the same number of circulator passes.
EP87112361A 1986-09-29 1987-08-26 Arrangement for connecting several transmitters and receivers Expired - Lifetime EP0262391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863632984 DE3632984A1 (en) 1986-09-29 1986-09-29 ARRANGEMENT FOR CONNECTING SEVERAL TRANSMITTERS AND RECEIVERS TO AN ANTENNA
DE3632984 1986-09-29

Publications (3)

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EP0262391A2 true EP0262391A2 (en) 1988-04-06
EP0262391A3 EP0262391A3 (en) 1988-12-07
EP0262391B1 EP0262391B1 (en) 1993-08-04

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EP87112361A Expired - Lifetime EP0262391B1 (en) 1986-09-29 1987-08-26 Arrangement for connecting several transmitters and receivers

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DE (2) DE3632984A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633621A1 (en) * 1993-07-08 1995-01-11 Siemens Aktiengesellschaft Antenna-filter-combiner
GB2284940A (en) * 1993-12-15 1995-06-21 Filtronic Ltd Microwave filter
WO1996000989A1 (en) * 1994-06-30 1996-01-11 Nokia Telecommunications Oy Summing network
GB2307829A (en) * 1995-11-30 1997-06-04 Fujitsu Ltd Wideband transceivers
FR2759513A1 (en) * 1997-01-17 1998-08-14 Samsung Electronics Co Ltd TRANSMITTER/RECEIVER FOR USE IN A MULTI-CHANNEL TIME-DIVIDED DUPLEXING SYSTEM
WO2008086515A1 (en) * 2007-01-12 2008-07-17 Andrew Corporation Low loss combiner for narrowband and wideband rf signals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929702A1 (en) * 1989-09-07 1991-03-14 Standard Elektrik Lorenz Ag CIRCUIT ARRANGEMENT TO THE UNCOUPLED CONNECTING MULTIPLE WORKING TRANSMITTERS TO AN ANTENNA IN ACCORDING TO THE FREQUENCY HOPING PROCESS
FI88660C (en) * 1991-01-09 1993-06-10 Nokia Telecommunications Oy Radiosändarmottagarsystem

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641875B1 (en) * 1976-09-17 1978-03-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Microwave switch arrangement with three-arm circulators connected in a chain for connecting several transmitters and receivers to a common antenna
JPS59185408A (en) * 1983-04-05 1984-10-22 Nec Corp Branching filter device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226728A1 (en) * 1982-07-16 1984-01-19 ANT Nachrichtentechnik GmbH, 7150 Backnang MICROWAVE SWITCH ARRANGEMENT WITH TRANSMITTER OR RECEIVER REPLACEMENT

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641875B1 (en) * 1976-09-17 1978-03-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Microwave switch arrangement with three-arm circulators connected in a chain for connecting several transmitters and receivers to a common antenna
JPS59185408A (en) * 1983-04-05 1984-10-22 Nec Corp Branching filter device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NACHRICHTENTECHNISCHE ZEITSCHRIFT N.T.Z., Band 36, Nr. 9, September 1983, Seiten 572-577, Berlin, DE; H.-J. GRIEM: "14-GHz-Leistungsverstärkersystem für Satelliten-Erdefunkstellen" *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 47 (E-299)[1770], 27. Februar 1985; & JP-A-59 185 408 (NIPPON DENKI K.K.) 22-10-1984 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546057A (en) * 1993-07-08 1996-08-13 Aktiengesellschaft Siemens Antenna/filter combiner
EP0633621A1 (en) * 1993-07-08 1995-01-11 Siemens Aktiengesellschaft Antenna-filter-combiner
GB2284940B (en) * 1993-12-15 1997-11-19 Filtronic Ltd Microwave filter
GB2284940A (en) * 1993-12-15 1995-06-21 Filtronic Ltd Microwave filter
US5781084A (en) * 1993-12-15 1998-07-14 Filtronic Comtek Plc Microwave reflection filter including a ladder network of resonators having progressively smaller Q values
WO1996000989A1 (en) * 1994-06-30 1996-01-11 Nokia Telecommunications Oy Summing network
US5689219A (en) * 1994-06-30 1997-11-18 Nokia Telecommunications Oy Summing network
GB2307829A (en) * 1995-11-30 1997-06-04 Fujitsu Ltd Wideband transceivers
US5963587A (en) * 1995-11-30 1999-10-05 Fujitsu Limited Wideband transceiver
GB2307829B (en) * 1995-11-30 2000-02-09 Fujitsu Ltd Wideband transceivers
FR2759513A1 (en) * 1997-01-17 1998-08-14 Samsung Electronics Co Ltd TRANSMITTER/RECEIVER FOR USE IN A MULTI-CHANNEL TIME-DIVIDED DUPLEXING SYSTEM
DE19755410C2 (en) * 1997-01-17 2001-03-08 Samsung Electronics Co Ltd Device for connecting two transceivers to one antenna
WO2008086515A1 (en) * 2007-01-12 2008-07-17 Andrew Corporation Low loss combiner for narrowband and wideband rf signals

Also Published As

Publication number Publication date
EP0262391B1 (en) 1993-08-04
EP0262391A3 (en) 1988-12-07
DE3786863D1 (en) 1993-09-09
DE3632984C2 (en) 1988-12-22
DE3632984A1 (en) 1988-04-07

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