EP0262391B1 - Anordnung zum Aufschalten mehrerer Sender und Empfänger auf eine Antenne - Google Patents

Anordnung zum Aufschalten mehrerer Sender und Empfänger auf eine Antenne Download PDF

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Publication number
EP0262391B1
EP0262391B1 EP87112361A EP87112361A EP0262391B1 EP 0262391 B1 EP0262391 B1 EP 0262391B1 EP 87112361 A EP87112361 A EP 87112361A EP 87112361 A EP87112361 A EP 87112361A EP 0262391 B1 EP0262391 B1 EP 0262391B1
Authority
EP
European Patent Office
Prior art keywords
circulators
circulator
receiver
transmitter
receivers
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
EP87112361A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0262391A3 (en
EP0262391A2 (de
Inventor
Manfred Dipl.-Ing. Seitter (Fh)
Dieter Dipl.-Ing. Rickman
Gerhard Dipl.-Ing. Hirsch (Fh)
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.)
Bosch Telecom GmbH
Original Assignee
ANT Nachrichtentechnik GmbH
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 ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Publication of EP0262391A2 publication Critical patent/EP0262391A2/de
Publication of EP0262391A3 publication Critical patent/EP0262391A3/de
Application granted granted Critical
Publication of EP0262391B1 publication Critical patent/EP0262391B1/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
    • 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 chains, one transmitter and one receiver being connected to one of the circulators via a filter branch.
  • a connection of transmitters and receivers to an antenna known from DE-B-26 41 875 consists of a chain of circulators, to the gates of which a transmitter or a receiver is connected.
  • the transmitters and receivers are connected to the circulator chain either individually or in groups.
  • n receivers and m transmitters at least (n + m) -1 circulators are required here.
  • the invention is based on the object of specifying an arrangement of the type mentioned at the outset which manages with as few circulators as possible in order to keep the attenuation of the transmit and receive signals low.
  • the arrangement of the invention manages with n transceiver pairs with n-1 circulators.
  • the state of the art requires n + 1 circulators for n transmitter / receiver pairs.
  • the invention saves a considerable number of circulators, which is particularly advantageous in terms of the space required for such a z. B. affects arrangement used in radio stations.
  • 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.
  • 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.
  • For each transmitter / receiver pair of transmitters S1, ..., Sn and receiver 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.
  • 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 arrives after reflections 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.
  • a transmission signal that 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.
  • 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.

Landscapes

  • Transceivers (AREA)
  • Radio Relay Systems (AREA)
EP87112361A 1986-09-29 1987-08-26 Anordnung zum Aufschalten mehrerer Sender und Empfänger auf eine Antenne Expired - Lifetime EP0262391B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3632984 1986-09-29
DE19863632984 DE3632984A1 (de) 1986-09-29 1986-09-29 Anordnung zum aufschalten mehrerer sender und empfaenger auf eine antenne

Publications (3)

Publication Number Publication Date
EP0262391A2 EP0262391A2 (de) 1988-04-06
EP0262391A3 EP0262391A3 (en) 1988-12-07
EP0262391B1 true EP0262391B1 (de) 1993-08-04

Family

ID=6310560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112361A Expired - Lifetime EP0262391B1 (de) 1986-09-29 1987-08-26 Anordnung zum Aufschalten mehrerer Sender und Empfänger auf eine Antenne

Country Status (2)

Country Link
EP (1) EP0262391B1 (enrdf_load_stackoverflow)
DE (2) DE3632984A1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929702A1 (de) * 1989-09-07 1991-03-14 Standard Elektrik Lorenz Ag Schaltungsanordnung zum gegeneinander entkoppelten verbinden mehrerer nach dem frequenzsprung-verfahren arbeitender sender an eine antenne
FI88660C (fi) * 1991-01-09 1993-06-10 Nokia Telecommunications Oy Radiosaendarmottagarsystem
EP0633621B1 (de) * 1993-07-08 1999-09-22 Siemens Aktiengesellschaft Antennen-Filter-Combiner
GB2284940B (en) * 1993-12-15 1997-11-19 Filtronic Ltd Microwave filter
FI96550C (fi) * 1994-06-30 1996-07-10 Nokia Telecommunications Oy Summausverkko
JPH09153838A (ja) * 1995-11-30 1997-06-10 Fujitsu Ltd 広帯域送受信装置
KR19980065967A (ko) * 1997-01-17 1998-10-15 김광호 시스템 성능 개선을 위한 다중채널 시분할교신방식의 신호 송수신 장치
US20080169878A1 (en) * 2007-01-12 2008-07-17 Giuseppe Resnati Low loss combiner for narrowband and wideband rf signals

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641875B1 (de) * 1976-09-17 1978-03-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mikrowellen-Weichenanordnung mit in Kette geschalteten Dreiarm-Zirkulatoren zum Aufschalten von mehreren Sendern und Empfangern auf eine gemeinsame Antenne

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226728A1 (de) * 1982-07-16 1984-01-19 ANT Nachrichtentechnik GmbH, 7150 Backnang Mikrowellen-weichenanordnung mit sender- bzw. empfaengerersatzschaltung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641875B1 (de) * 1976-09-17 1978-03-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mikrowellen-Weichenanordnung mit in Kette geschalteten Dreiarm-Zirkulatoren zum Aufschalten von mehreren Sendern und Empfangern auf eine gemeinsame Antenne

Also Published As

Publication number Publication date
DE3632984A1 (de) 1988-04-07
DE3632984C2 (enrdf_load_stackoverflow) 1988-12-22
EP0262391A3 (en) 1988-12-07
DE3786863D1 (de) 1993-09-09
EP0262391A2 (de) 1988-04-06

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