NO902244L - DIRECTOR CONNECTOR CLUTCH FOR HOWE FREQUENCY. - Google Patents
DIRECTOR CONNECTOR CLUTCH FOR HOWE FREQUENCY.Info
- Publication number
- NO902244L NO902244L NO90902244A NO902244A NO902244L NO 902244 L NO902244 L NO 902244L NO 90902244 A NO90902244 A NO 90902244A NO 902244 A NO902244 A NO 902244A NO 902244 L NO902244 L NO 902244L
- Authority
- NO
- Norway
- Prior art keywords
- branch
- transformers
- junction
- current transformer
- secondary winding
- Prior art date
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
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Details Of Television Systems (AREA)
- Control Of Stepping Motors (AREA)
- Characterised By The Charging Evacuation (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Developing Agents For Electrophotography (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Coils Or Transformers For Communication (AREA)
- Medicinal Preparation (AREA)
- Transmitters (AREA)
Abstract
The present invention relates to branching directional couplers with a voltage and a current transformer and an internal terminating resistance, in which the junction of the secondary windings of the two transformers forms the branch and the internal terminating resistance is inserted between the secondary winding of the voltage transformer and earth. To achieve branch attenuations of >/= 16 dB in such a branching directional coupler, with little circuit complexity over a wide band up to 1.75 GHz with little transmission loss, a high degree of decoupling and good matching of all connections, an ohmic resistance connected in parallel with the secondary winding of the current transformer and connected to the latter with low inductance is provided which, together with the transformation ratios of the two transformers, is selected in such a manner that the nominal values for the branch attenuation and impedance are obtained as accurately as possible at the branch connection. By inserting a further ohmic resistance between the junction of the secondary windings of the two transformers and the branch connection, a further degree of freedom has been advantageously achieved for the choice of resistances and transformation ratios. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3916855A DE3916855C1 (en) | 1989-05-24 | 1989-05-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO902244D0 NO902244D0 (en) | 1990-05-22 |
NO902244L true NO902244L (en) | 1990-11-26 |
Family
ID=6381270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO90902244A NO902244L (en) | 1989-05-24 | 1990-05-22 | DIRECTOR CONNECTOR CLUTCH FOR HOWE FREQUENCY. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0399202B1 (en) |
AT (1) | ATE103432T1 (en) |
DE (2) | DE3916855C1 (en) |
FI (1) | FI902438A0 (en) |
NO (1) | NO902244L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006005040A1 (en) * | 2006-02-03 | 2007-08-09 | Rohde & Schwarz Gmbh & Co. Kg | Network analyzer with switchable bridge |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1516824B2 (en) * | 1966-04-25 | 1970-11-12 | Siemens AG, 1000 Berlin u. 8000 München | Distribution circuit for dividing high frequency energy |
BE792048A (en) * | 1971-12-11 | 1973-03-16 | Bosch Elektronik Gmbh | LARGE BAND DIRECTIONAL TRANSFORMER WITH BIFURCATION MOUNTING |
US3872408A (en) * | 1974-05-03 | 1975-03-18 | Lindsay Specialty Prod Ltd | Signal directional tap |
DE3028683C2 (en) * | 1980-07-29 | 1984-02-16 | Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen | Multiple branching device for high-frequency signals |
JPH0195616A (en) * | 1987-10-07 | 1989-04-13 | Uro Denshi Kogyo Kk | Two-way branching device |
-
1989
- 1989-05-24 DE DE3916855A patent/DE3916855C1/de not_active Expired - Fee Related
-
1990
- 1990-04-14 AT AT90107179T patent/ATE103432T1/en not_active IP Right Cessation
- 1990-04-14 DE DE90107179T patent/DE59005052D1/en not_active Expired - Lifetime
- 1990-04-14 EP EP90107179A patent/EP0399202B1/en not_active Expired - Lifetime
- 1990-05-17 FI FI902438A patent/FI902438A0/en not_active IP Right Cessation
- 1990-05-22 NO NO90902244A patent/NO902244L/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0399202A2 (en) | 1990-11-28 |
EP0399202B1 (en) | 1994-03-23 |
NO902244D0 (en) | 1990-05-22 |
DE3916855C1 (en) | 1990-05-10 |
EP0399202A3 (en) | 1991-03-27 |
FI902438A0 (en) | 1990-05-17 |
DE59005052D1 (en) | 1994-04-28 |
ATE103432T1 (en) | 1994-04-15 |
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