EP0343585B1 - Mikrowellen-Multiplexfilter - Google Patents

Mikrowellen-Multiplexfilter Download PDF

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Publication number
EP0343585B1
EP0343585B1 EP89109232A EP89109232A EP0343585B1 EP 0343585 B1 EP0343585 B1 EP 0343585B1 EP 89109232 A EP89109232 A EP 89109232A EP 89109232 A EP89109232 A EP 89109232A EP 0343585 B1 EP0343585 B1 EP 0343585B1
Authority
EP
European Patent Office
Prior art keywords
filter
common
filters
antennas
unitary
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
EP89109232A
Other languages
English (en)
French (fr)
Other versions
EP0343585A1 (de
Inventor
Catherine Simon
Robert Le Roux
Marc Sauvage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Alcatel Lucent NV
Original Assignee
Alcatel Telspace SA
Alcatel NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Telspace SA, Alcatel NV filed Critical Alcatel Telspace SA
Publication of EP0343585A1 publication Critical patent/EP0343585A1/de
Application granted granted Critical
Publication of EP0343585B1 publication Critical patent/EP0343585B1/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports

Definitions

  • the invention relates to microwave multiplexed connection filters and therefore comprising a common access to several unit bandpass filters and as many independent accesses as there are unit filters, such a connection filter serving as a demultiplexer when a microwave signal is applied to its common access, the demultiplexed signals then being obtained on the independent accesses which form the outputs of each of the unit filters, and serving on the contrary as a multiplexer when the various microwave signals to be multiplexed are respectively applied to each of these independent accesses relating to each unit filter and that the multiplexed signal output is then obtained on said common access.
  • a connection filter serving as a demultiplexer when a microwave signal is applied to its common access, the demultiplexed signals then being obtained on the independent accesses which form the outputs of each of the unit filters, and serving on the contrary as a multiplexer when the various microwave signals to be multiplexed are respectively applied to each of these independent accesses relating to each unit filter and that the multiplexed signal output is then obtained on
  • Microwave multiplexed connection filters are produced in "comb-line” (comb filter) or in evanescent mode. These filters are tunable in a certain frequency band and have at least one common coaxial access. These are attached or in-line filters, each operating in a different frequency band.
  • a filter of the known art is described in the article published in IEEE MTT Vol. 21 N ° 1 January 1973 entitled "Design of evanescent mode waveguide diplexers”.
  • This article describes a new procedure for making connection filters constructed in waveguides below the cutoff.
  • This realization allows the total construction of a diplexer (the whole device is built in a single waveguide, which allows to do without T-junction and connection flanges) if a coaxial connection is used at the common junction .
  • the embodiment described uses unitary bandpass filters valid for bandwidths of a few percent.
  • the agreement of the two unit filters is not independent and there is interaction of a unit filter on the other.
  • the filter tuning bands must be very close to each other because there is a resonator common to both filters.
  • the width of this strip cannot exceed a few percent.
  • the diplexer is necessarily made up of two unitary filters in line.
  • An object of the invention is to make the unit filters independent of each other, that is to say such that, during the adjustment, there is no interaction of one on the 'other, which simplifies this setting.
  • Document DE-A-3,028,925 describes a diplexed connection filter, which more precisely is here an antenna splitter, and which comprises two unit filters joined by a common wall and each provided with their independent coaxial access. Their common access is placed in the extension of this common wall, and it is electrically connected to two respective coupling antennas which are provided in the internal space of each of the unit filters, on either side of this common wall and largely away from it.
  • the adjustment of each unit filter is carried out by agreement of the resonators that each filter contains. However, no possibility of adjustment by the coupling members is provided at the access points.
  • the document EP-A-0.205.151 describes a unitary microwave bandpass filter in evanescent mode, the two coaxial accesses of which respectively enter and exit the filter, are each equipped with a rotary coupling antenna in the form of a crankshaft. , which allows, by rotation of one or the other of these coupling antennas in the form of a crankshaft about their longitudinal axis, to adjust the coupling between this antenna and this unit filter.
  • This document does not however relate to a multiplexed connection filter with several unit filters, and gives no solution for applying this principle of adjustment, by rotary crankshaft coupling antenna, to such a multiplexed connection filter.
  • Such an embodiment of the filter of the invention is simple and more efficient than the devices of the known art.
  • the unitary filters can be produced in line or side by side:
  • the invention can in particular be applied to two in-line filters, to two side by side filters, to three "triplexer” filters or to four "quadriplexer” filters.
  • the invention relates more precisely to this common access 14 which makes it possible to produce a filter comprising two unitary filters joined together, as shown in FIG. 1, but which also makes it possible to produce a filter comprising three or four unitary filters joined together as shown respectively in the Figures 2 and 3, or two in-line unit filters as shown in Figure 4.
  • the common access shown in Figures 5 and 6 is located on horseback between the two unit filters 10 and 11.
  • the partition 28 at this location has been partially milled so as to allow the passage of the antennas 22 and 23.
  • the "plug" part 48 is also modified: its diameter is increased in order to allow passage to the antennas which must be more curved to be sufficiently distant from each other.
  • this part is now attached to the filter by at least two screws 49 and 50.
  • the coaxial base 53 is itself fixed to the "plug" part by at least two screws 51, 52 as shown in FIG. 7.
  • the filter is made of one-piece extruded aluminum, of square shape. It is possible to give it other forms: rectangular or circular (only in the case of an online diplexer) and to make it in several parts, with cover.
  • the two independent accesses can be made directly as a guide.
  • the "plug" part in the examples shown is either wedged in the guide by the base (figure 5) or held by two screws in the guide (figure 7) but it is also possible to screw it into the wall of the guide by threading and directly tapping the guide.
  • the common part 39 is identical to that of the "quadriplexer”; but we only use three crankshaft antennas, one hole remaining unused. It is also possible to machine only three holes in the common room.

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Claims (6)

  1. Mikrowellen-Multiplexweichenfilter, das einen ersten Zugang (14) als Eingang oder Ausgang besitzt, der mehreren aneinander angefügten und/oder in Reihe liegenden Weichenfiltern (10, 11) gemeinsam ist, und mehrere unabhängige Zugänge (12) als Ausgang oder Eingang besitzt, nämlich einen unabhängigen Zugang (12) je Einheitsfilter (10, 11), wobei der gemeinsame Zugang (14) in der Verlängerung einer reellen oder fiktiven, allen Einheitsfiltern (10, 11) gemeinsamen Trennwand liegt und elektrisch an ebensoviele Kopplungsantennen (22, 23) angeschlossen ist, wie es Einheitsfilter gibt, dadurch gekennzeichnet, daß
    . die Kopplungsantennen (22, 23) gekröpfte Kopplungsantennen sind, die um ihre Längsachse drehbeweglich sind, um eine Regelung der Kopplung zwischen dieser Antenne und dem betroffenen Einheitsfilter (10, 11) zu erlauben,
    . die Längsachsen all dieser Kopplungsantennen im Schnittpunkt dieser verschiedenen Einheitsfilter (10, 11) liegen und mit einem Ende (30, 31) drehbar von einem gemeinsamen Bauteil (24) getragen werden, das elektrisch leitend ist und auch der elektrischen Verbindung mit dem Sockel (20) des gemeinsamen Zugangs (14) an jede der Kopplungsantennen (22, 23) dient, wobei die Achse dieses gemeinsamen Bauteils (24) in der Ebene der Trennwand liegt.
  2. Filter nach Anspruch 1, dadurch gekennzeichnet, daß der gemeinsame Zugang (14) besteht aus:
    - einem koaxialen Sockel (20),
    - einem ersten Stopfenteil (21), das den Wellenleiter nach der Montage der gekröpften Antennen (22, 23) wieder verschließt und in ein Loch in der gemeinsamen Wand der Filter eingefügt ist, so daß es von dem koaxialen Sockel festgelegt wird,
    - einem gemeinsamen Bauteil (24), dessen Aufgabe es ist, den koaxialen Sockel (20) mit den Antennen (22, 23) elektrisch zu verbinden.
  3. Filter nach Anspruch 2, dadurch gekennzeichnet, daß das gemeinsame Bauteil (24) ein verjüngtes Ende (25) besitzt, das sich eng in den koaxialen Sockel einfügt.
  4. Filter nach einem beliebigen der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß der gemeinsame Zugang ein Isolierrohr (29) enthält, das das gemeinsame Bauteil (24) durchlassen soll, um einen Kurzschluß zwischen dem gemeinsamen Bauteil (24) und dem Stopfen (21) zu vermeiden.
  5. Filter nach einem beliebigen der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der gemeinsame Zugang mindestens zwei gekröpfte Kopplungsantennen (22, 23) besitzt, deren verjüngte Enden im Paßsitz in den Löchern (27 und 28) des gemeinsamen Bauteils (24) sitzen, um eine Drehung dieser Antennen zu erlauben, während die anderen Enden durch ein Loch (35) gleicher Achse wie die verjüngten Enden aus dem Filter hervorstehen.
  6. Filter nach einem beliebigen der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß es eine Blockierschraube (34) zur Blockierung der Drehung jeder Antenne enthält, wobei diese Schraube den Körper des Filters durchquert und sich auf der entsprechenden Antenne (32) abstützt.
EP89109232A 1988-05-27 1989-05-23 Mikrowellen-Multiplexfilter Expired - Lifetime EP0343585B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807108A FR2632123B1 (fr) 1988-05-27 1988-05-27 Filtre multiplexe en hyperfrequence, et procede de reglage d'un tel filtre
FR8807108 1988-05-27

Publications (2)

Publication Number Publication Date
EP0343585A1 EP0343585A1 (de) 1989-11-29
EP0343585B1 true EP0343585B1 (de) 1993-12-01

Family

ID=9366696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109232A Expired - Lifetime EP0343585B1 (de) 1988-05-27 1989-05-23 Mikrowellen-Multiplexfilter

Country Status (6)

Country Link
US (1) US4980662A (de)
EP (1) EP0343585B1 (de)
JP (1) JPH0226101A (de)
CA (1) CA1306556C (de)
DE (1) DE68911031T2 (de)
FR (1) FR2632123B1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5151670A (en) * 1991-04-10 1992-09-29 Radio Frequency Systems, Inc. Duplexing filter
US5291158A (en) * 1991-12-26 1994-03-01 Radio Frequency Systems, Inc. High frequency filter having common coupling rods fixedly mounted and coupled through a common wall
JP2581912Y2 (ja) * 1992-10-07 1998-09-24 株式会社村田製作所 デュプレクサ
NZ248549A (en) * 1993-08-31 1997-01-29 Deltec New Zealand Loop coupler for resonator: rotates to adjust loaded q
EP0899807B1 (de) * 1997-08-28 2006-05-03 The Boeing Company Kupplungsmechanismus für TE011- und TE01delta- Mode-Resonatoren
US6154106A (en) * 1998-08-27 2000-11-28 Merrimac Industries, Inc. Multilayer dielectric evanescent mode waveguide filter
US6137383A (en) * 1998-08-27 2000-10-24 Merrimac Industries, Inc. Multilayer dielectric evanescent mode waveguide filter utilizing via holes
WO2000026986A1 (fr) * 1998-11-02 2000-05-11 Jury Vyacheslavovich Kislyakov Multiplexeur
US6426681B1 (en) * 2000-11-28 2002-07-30 Behrouz Amini High power adjustable RF coupling loop
US6559740B1 (en) * 2001-12-18 2003-05-06 Delta Microwave, Inc. Tunable, cross-coupled, bandpass filter
SE530302C2 (sv) * 2006-09-14 2008-04-22 Powerwave Technologies Sweden En antennfiltermodul
JP4491001B2 (ja) * 2007-08-31 2010-06-30 日本アンテナ株式会社 フィルタ
TWM343255U (en) * 2008-03-14 2008-10-21 Universal Microwave Technology Inc Antenna terminal feed-in coupling device for duplexer
US8008994B2 (en) * 2009-05-01 2011-08-30 Alcatel Lucent Tunable capacitive input coupling
US9888568B2 (en) 2012-02-08 2018-02-06 Crane Electronics, Inc. Multilayer electronics assembly and method for embedding electrical circuit components within a three dimensional module
US9230726B1 (en) 2015-02-20 2016-01-05 Crane Electronics, Inc. Transformer-based power converters with 3D printed microchannel heat sink

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910659A (en) * 1956-05-21 1959-10-27 Bell Telephone Labor Inc Microwave impedance branch
US3105207A (en) * 1961-01-04 1963-09-24 Elliott Brothers London Ltd Adjustable coupler between partially intersecting coaxial lines having coupling varied by center conductor movement
US4166256A (en) * 1977-01-05 1979-08-28 Hughes Aircraft Company Anti multipacting resonant cavity
US4249147A (en) * 1978-10-20 1981-02-03 Tx Rx Systems Inc. Cavity filter and multi-coupler utilizing same
DE3028925A1 (de) * 1980-07-30 1982-02-11 Siemens AG, 1000 Berlin und 8000 München Antennenweiche, bestehend aus wenigstens zwei parallelgeschalteten filtern fuer sehr kurze elektromagnetische wellen
JPS59110202A (ja) * 1982-12-15 1984-06-26 Nippon Dengiyou Kosaku Kk 帯域通過ろ波器を用いた分波器
FR2583597A1 (fr) * 1985-06-13 1986-12-19 Alcatel Thomson Faisceaux Filtre passe-bande hyperfrequences en mode evanescent

Also Published As

Publication number Publication date
US4980662A (en) 1990-12-25
EP0343585A1 (de) 1989-11-29
DE68911031T2 (de) 1994-03-31
FR2632123B1 (fr) 1991-01-18
FR2632123A1 (fr) 1989-12-01
JPH0226101A (ja) 1990-01-29
DE68911031D1 (de) 1994-01-13
CA1306556C (fr) 1992-08-18

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