EP0498036A2 - Transducteur à large bande pour haute fréquence - Google Patents
Transducteur à large bande pour haute fréquence Download PDFInfo
- Publication number
- EP0498036A2 EP0498036A2 EP91117190A EP91117190A EP0498036A2 EP 0498036 A2 EP0498036 A2 EP 0498036A2 EP 91117190 A EP91117190 A EP 91117190A EP 91117190 A EP91117190 A EP 91117190A EP 0498036 A2 EP0498036 A2 EP 0498036A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- frequency
- frequency broadband
- radio
- winding
- broadband transmitter
- 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.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
Definitions
- the invention is based on a high-frequency broadband transmitter according to the preamble of claim 1.
- Such a high-frequency broadband transmitter which has two individual transmitters and which is only suitable for high-frequency transmission up to about 600 MHz.
- the invention has for its object to develop a high-frequency broadband transmitter according to the preamble of claim 1 such that it is suitable for the signal transmission of frequencies above 600 MHz with the simplest possible, compact structure.
- a high-frequency broadband transmitter with these features transmits signals within a frequency range of, for example, 47 to 860 MHz.
- the reason for this is the twisting of the wires of the two windings, which compensates for the series leakage inductance that otherwise occurs, which has a strong bandwidth-limiting effect.
- the high broadness is also retained if the turns ratios of the first and second windings are not the same, but different.
- a further advantage is achieved if a capacitor is connected in parallel to the input or the output of the high-frequency broadband transmitter. This means that any parasitic inductive components of the transformer that may still be present can be compensated for, so that its broadband capability is increased.
- E denotes the input and O the output of a high-frequency broadband transmitter Ü with two windings W1, W2, which are arranged on a ferrite core K.
- the ferrite core is a double hole core DK with two holes L1 and L2.
- the twisted windings W1 and W2 are wound through the holes.
- the first winding W1 has two turns and the second winding W2 has three turns.
- the windings W1, W2 preferably consist of enamelled copper wire.
- a transformer U which has the same basic structure as the transformer according to FIG. 2, a first capacitor C1 is connected on the primary side and a second capacitor C2 is connected in parallel on the secondary side.
- the capacitors C1, C2 compensate for parasitic inductances of the transformer U. In this case, the windings W1 and W2 have a turn ratio of 1: 3.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4103184A DE4103184A1 (de) | 1991-02-02 | 1991-02-02 | Hochfrequenz-breitbanduebertrager |
DE4103184 | 1991-02-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0498036A2 true EP0498036A2 (fr) | 1992-08-12 |
EP0498036A3 EP0498036A3 (en) | 1992-12-02 |
Family
ID=6424268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910117190 Withdrawn EP0498036A3 (en) | 1991-02-02 | 1991-10-09 | High-frequency broadband transducer |
Country Status (5)
Country | Link |
---|---|
US (1) | US5216393A (fr) |
EP (1) | EP0498036A3 (fr) |
JP (1) | JPH04335507A (fr) |
DE (1) | DE4103184A1 (fr) |
FI (1) | FI920096A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500867A (en) * | 1994-09-13 | 1996-03-19 | At&T Corp. | Laser package having an impedance matching transformer |
US5742213A (en) * | 1995-09-14 | 1998-04-21 | Vari-L Company, Inc. | Unbalanced to balanced high impedance ratio wideband transformer circuit |
US5619172A (en) * | 1995-09-14 | 1997-04-08 | Vari-L Company, Inc. | High impedance ratio wideband transformer circuit |
US7724484B2 (en) * | 2006-12-29 | 2010-05-25 | Cobham Defense Electronic Systems Corporation | Ultra broadband 10-W CW integrated limiter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238974B (de) * | 1965-04-24 | 1967-04-20 | Telefunken Patent | Hochfrequenzuebertrager |
DE3022023A1 (de) * | 1980-06-12 | 1981-12-17 | Robert Bosch Gmbh, 7000 Stuttgart | Uebertragerschaltung fuer breitbandkommunikationsnetze |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5459859A (en) * | 1977-10-20 | 1979-05-14 | Sanyo Electric Co Ltd | Input transformer device of television picture receiver |
US4379273A (en) * | 1981-06-25 | 1983-04-05 | Mcdonnell Douglas Corporation | Pulse transformer laser diode package |
US4687947A (en) * | 1985-02-08 | 1987-08-18 | Melvin Cobb | Electrical power conservation circuit |
US5051710A (en) * | 1990-06-25 | 1991-09-24 | Motorola, Inc. | Variable Zo transmission line transformer |
-
1991
- 1991-02-02 DE DE4103184A patent/DE4103184A1/de not_active Withdrawn
- 1991-10-09 EP EP19910117190 patent/EP0498036A3/de not_active Withdrawn
-
1992
- 1992-01-09 FI FI920096A patent/FI920096A/fi not_active Application Discontinuation
- 1992-01-21 US US07/822,995 patent/US5216393A/en not_active Expired - Fee Related
- 1992-01-30 JP JP4015019A patent/JPH04335507A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238974B (de) * | 1965-04-24 | 1967-04-20 | Telefunken Patent | Hochfrequenzuebertrager |
DE3022023A1 (de) * | 1980-06-12 | 1981-12-17 | Robert Bosch Gmbh, 7000 Stuttgart | Uebertragerschaltung fuer breitbandkommunikationsnetze |
Non-Patent Citations (2)
Title |
---|
ELECTRONICS Bd. 46, Nr. 17, 16. August 1973, BLACKSBURG, VIRGINIA Seiten 113 - 116 KRAUSS ET AL 'Designinig toroidal transformers to optimize wideband performance' * |
THE REVIEW OF SCIENTIFIC INSTRUMENTS Bd. 34, Nr. 10, 27. Februar 1963, YORKTOWN HEIGHTS, NEW YORK Seiten 1075 - 1081 TANSAL ET AL 'Wide-band pulse transformers for matching low impedance loads' * |
Also Published As
Publication number | Publication date |
---|---|
JPH04335507A (ja) | 1992-11-24 |
US5216393A (en) | 1993-06-01 |
FI920096A0 (fi) | 1992-01-09 |
FI920096A (fi) | 1992-08-03 |
EP0498036A3 (en) | 1992-12-02 |
DE4103184A1 (de) | 1992-08-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR NL |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19930603 |