NO892592D0 - DIRECTOR CONNECTORS AND BRANCH FOR COMMON ANTENNA AND CABLE DISTRIBUTION SYSTEMS. - Google Patents

DIRECTOR CONNECTORS AND BRANCH FOR COMMON ANTENNA AND CABLE DISTRIBUTION SYSTEMS.

Info

Publication number
NO892592D0
NO892592D0 NO892592A NO892592A NO892592D0 NO 892592 D0 NO892592 D0 NO 892592D0 NO 892592 A NO892592 A NO 892592A NO 892592 A NO892592 A NO 892592A NO 892592 D0 NO892592 D0 NO 892592D0
Authority
NO
Norway
Prior art keywords
branch
directional coupler
distributors
branch connection
single distributor
Prior art date
Application number
NO892592A
Other languages
Norwegian (no)
Other versions
NO892592L (en
NO172468B (en
NO172468C (en
Inventor
Wolfgang Wendel
Chaiyakarn Pasadu
Ralf Epple
Original Assignee
Hirschmann Richard Gmbh Co
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 Hirschmann Richard Gmbh Co filed Critical Hirschmann Richard Gmbh Co
Publication of NO892592D0 publication Critical patent/NO892592D0/en
Publication of NO892592L publication Critical patent/NO892592L/en
Publication of NO172468B publication Critical patent/NO172468B/en
Publication of NO172468C publication Critical patent/NO172468C/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
    • H03H7/482—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source particularly adapted for use in common antenna systems

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Near-Field Transmission Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Television Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Earth Drilling (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Discharge Heating (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

In known directional coupler-distributors for the wide-band coupling-out of a part of the radio-frequency signal energy transmitted via a main line, which consist of at least two cascaded single distributors, at least one of which is constructed in directional coupler technique with a current and a voltage transformer and an internal terminating resistor (R) which is connected to earth at one end, branch attenuations of </= 13 dB cannot be achieved or only to a slight extent and with considerable circuit expenditure with adequate decoupling of the output (A) from the branch connection (AB) and good values for transmission loss and return losses. To avoid these disadvantages in as simple and inexpensive a manner as possible, it is provided in accordance with the invention that the internal terminating resistor of each directional-coupler single distributor be formed by its branch impedance by connecting its branch connection (2, 35) to that of the immediately preceding single distributor, that the branch of the last directional coupler single distributor is the only branch connection (AB) and that all currents coupled out of the current transformers (Ü1, Ü2, Ü4) have at least approximately the same phase.
NO892592A 1988-06-24 1989-06-22 DIRECTOR CONNECTOR BRANCH FOR COMMON ANTENNA AND CABLE DISTRIBUTION SYSTEM NO172468C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3821365A DE3821365A1 (en) 1988-06-24 1988-06-24 ALIGNMENT COUPLERS

Publications (4)

Publication Number Publication Date
NO892592D0 true NO892592D0 (en) 1989-06-22
NO892592L NO892592L (en) 1989-12-27
NO172468B NO172468B (en) 1993-04-13
NO172468C NO172468C (en) 1993-07-21

Family

ID=6357181

Family Applications (1)

Application Number Title Priority Date Filing Date
NO892592A NO172468C (en) 1988-06-24 1989-06-22 DIRECTOR CONNECTOR BRANCH FOR COMMON ANTENNA AND CABLE DISTRIBUTION SYSTEM

Country Status (5)

Country Link
EP (1) EP0347604B1 (en)
AT (1) ATE93103T1 (en)
DE (2) DE3821365A1 (en)
ES (1) ES2043947T3 (en)
NO (1) NO172468C (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537036A (en) * 1968-11-06 1970-10-27 John R Winegard Directional line drop tap unit
US3716806A (en) * 1971-08-19 1973-02-13 M Zelenz Signal coupling apparatus utilizing hybrid transformer
DE3028683C2 (en) * 1980-07-29 1984-02-16 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen Multiple branching device for high-frequency signals

Also Published As

Publication number Publication date
NO892592L (en) 1989-12-27
EP0347604B1 (en) 1993-08-11
EP0347604A2 (en) 1989-12-27
ES2043947T3 (en) 1994-01-01
DE58905228D1 (en) 1993-09-16
NO172468B (en) 1993-04-13
ATE93103T1 (en) 1993-08-15
EP0347604A3 (en) 1990-09-12
NO172468C (en) 1993-07-21
DE3821365A1 (en) 1989-12-28
DE3821365C2 (en) 1992-02-27

Similar Documents

Publication Publication Date Title
CN1018312B (en) Transmission line switch
WO2001028029A1 (en) Rf power divider/combiner circuit
KR910019286A (en) Low Loss 360 ° X-Band Analog Abnormalizer
KR20000022848A (en) Power splitter and power combiner
SE8200300L (en) DIRECTIONAL SWITCH FOR BROADBAND SIGNALS
US4525689A (en) N×m stripline switch
NO892592D0 (en) DIRECTOR CONNECTORS AND BRANCH FOR COMMON ANTENNA AND CABLE DISTRIBUTION SYSTEMS.
US4577167A (en) Microstrip line branching coupler having coaxial coupled remote termination
US4419636A (en) Low frequency wide band signal coupler
DK536681A (en) MULTIFUNCTION LEAD TO HIGH FREQUENCY ENERGY
IE41291B1 (en) Improvements in or relating to electrically controllable attenuators for v h f circuits
JPH03283701A (en) Directional coupler
SU1681347A1 (en) Controlled attenuator
CA1208714A (en) Rf hybrid
EP0102128A3 (en) R.f. balanced mixer
SU1681353A1 (en) Directional coupler
FI902438A0 (en) HOEGFREKVENS-RIKTKOPPLINGSAV-branches.
SU1434511A1 (en) Multichannel switch
CS213053B1 (en) Connection of the directional by-pass member for non-symmetrical separation of the high-frequency output
SU630652A1 (en) Broad-band transformer
RU1786555C (en) Coaxial splitter
JPS6276917A (en) Two-way branching device
KR20000047708A (en) Bidirectional microstrip balun circuit and rf transmitter power amplifier therefor
FI103231B (en) Impedance adjustment for transmission lines
JPS55147804A (en) Branching circuit