EP0218846B1 - HF-Breitbandübertragerschaltung - Google Patents

HF-Breitbandübertragerschaltung Download PDF

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Publication number
EP0218846B1
EP0218846B1 EP86111320A EP86111320A EP0218846B1 EP 0218846 B1 EP0218846 B1 EP 0218846B1 EP 86111320 A EP86111320 A EP 86111320A EP 86111320 A EP86111320 A EP 86111320A EP 0218846 B1 EP0218846 B1 EP 0218846B1
Authority
EP
European Patent Office
Prior art keywords
winding
circuit board
resistor
printed circuit
wide band
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
Application number
EP86111320A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0218846A1 (de
Inventor
Heinz Dipl.-Ing. Pfizenmaier
Ewald Dipl.-Ing. Schmidt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT86111320T priority Critical patent/ATE47767T1/de
Publication of EP0218846A1 publication Critical patent/EP0218846A1/de
Application granted granted Critical
Publication of EP0218846B1 publication Critical patent/EP0218846B1/de
Expired legal-status Critical Current

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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
    • H01F19/06—Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/0006—Printed inductances

Definitions

  • the invention is based on an HF broadband transmitter circuit according to the preamble of claim 1.
  • Such an HF broadband transmitter circuit is the subject of DE-A 3 434 891.
  • the circuit is designed with a double-hole core and planar windings, the electrical connection between a first and a third winding via a first Interconnect and a fourth and a second winding is produced via a second interconnect.
  • the first and second conductor tracks are arranged on the underside of the printed circuit board carrying the HF broadband transmitter circuit.
  • the HF broadband transmitter circuit according to the invention with the characterizing features of claim 1 has the advantage that the circuit board only has to be laminated on one side. In addition, there is no need for special insulation of the vias present in the corners of the openings for the double-hole core. Such insulation is required in the embodiment according to FIG. 4 of DE-A 3 434 891 in order to prevent the formation of a conductive connection between the windings and the double-hole core.
  • Another advantage of the HF broadband transmitter circuit according to the invention is that the good electrical properties of the HF broadband transmitter circuit are largely retained by the insertion of the additional printed circuit board.
  • the properties include the lowest possible transmission loss between the input and the first output, a certain frequency-constant connection loss (for example 10 dB) between the input and the second output and a high decoupling loss between the first and second output.
  • the good damping values can be achieved especially in the lower frequency range.
  • An HF broadband transmitter circuit according to the invention is particularly advantageous in which the first conductor track is arranged in an arcuate manner above the printed circuit board and the second conductor track is arranged in an opposite arcuate manner below the circuit board. This configuration ensures to a particular degree that the electrical properties of the circuit are not impaired by the insertion of the additional printed circuit board.
  • a high-frequency broadband transmitter circuit shown in FIG. 1 for a broadband transmitter to be manufactured using planar technology has an input E, a first output A, a second output S and a double-hole core 19.
  • a first core half carries a first winding W1 and a second winding W2 and the second core half carries a third winding W3 and a fourth winding W4.
  • the first winding W1 lies between a first resistor R1 connected to ground or between a third winding W3 connected to the second output S and a second resistor R2 also connected to ground.
  • the second winding W2 lies between the input E and the first output A or one end M of a fourth winding W4, which is connected to ground via a third resistor R3.
  • the conductor tracks designated 230 and 240 in FIG. 1 correspond to the conductor tracks 23 and 24 in the layout according to FIG. 2, which are indicated by broken lines in FIG. 2 because they are arranged on the underside of the printed circuit board 10.
  • the printed circuit board 10 consists of a flat plate 11 made of dielectric material with conductor tracks 12 and conductor surfaces 13.
  • the second winding W2 and the third winding W3 are by straight conductor tracks 14, 15 and the first winding W1 and the fourth winding W4 by spirally arranged conductor tracks 16 and 17 realized.
  • the double-hole core 19 passes through three openings in the printed circuit board 10, two tongue-shaped printed circuit board regions lying in the direction of the core holes making it possible to thread the core in a manner known to those skilled in the art.
  • the circuit board 10 contains three narrow slots 260, 270, 280 on one end face of the double-hole core 19 for receiving an additional circuit board 300, which has two longitudinal slots 310, 320.
  • the additional circuit board 300 carries on its side facing away from the end face of the double-hole core the conductor tracks 230 and 240 as well as a further conductor track 250.
  • the conductor tracks 230, 240 are arcuate, the first conductor track 230 above the printed circuit board 10 and the second in the opposite direction to that first curved conductor track 240 runs below the circuit board 10.
  • the additional printed circuit board 300 is mechanically connected in such a way that the core 19 is pressed onto the contact points together with the printed circuit board 300 using a mechanical device.
  • the required solder connections to the conductor tracks 230, 240 are then made at the winding ends J, K, L, M.
  • the additional conductor track 250 is provided on the additional printed circuit board 300, which is located between the two other conductor tracks 230, 240 and is connected to the ground potential.
  • the further conductor track 250 preferably has the shape of an inverted S, so that the spacing between this conductor track and the arcuate conductor tracks 230 and 240 is as uniform as possible.
  • the further conductor track 250 is connected to the ground potential; see. also Fig. 1st

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Filters And Equalizers (AREA)
EP86111320A 1985-10-16 1986-08-16 HF-Breitbandübertragerschaltung Expired EP0218846B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111320T ATE47767T1 (de) 1985-10-16 1986-08-16 Hf-breitbanduebertragerschaltung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853536799 DE3536799A1 (de) 1985-10-16 1985-10-16 Hf-breitbanduebertragerschaltung
DE3536799 1985-10-16

Publications (2)

Publication Number Publication Date
EP0218846A1 EP0218846A1 (de) 1987-04-22
EP0218846B1 true EP0218846B1 (de) 1989-11-02

Family

ID=6283657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111320A Expired EP0218846B1 (de) 1985-10-16 1986-08-16 HF-Breitbandübertragerschaltung

Country Status (4)

Country Link
EP (1) EP0218846B1 (da)
AT (1) ATE47767T1 (da)
DE (2) DE3536799A1 (da)
DK (1) DK163904C (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004335886A (ja) 2003-05-09 2004-11-25 Canon Inc トランス集合体、それを用いた電力変換装置及び太陽光発電装置
JP2004335885A (ja) * 2003-05-09 2004-11-25 Canon Inc 電子部品およびその製造方法
DE102005037616A1 (de) * 2005-08-09 2007-02-15 Rohde & Schwarz Gmbh & Co. Kg Leitungstransformator zur Impedanzanpassung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219235A1 (de) * 1972-04-20 1973-10-25 Bosch Elektronik Gmbh Richtungsabhaengiger breitband-differentialuebertrager
DE2257960A1 (de) * 1972-11-25 1974-05-30 Bosch Elektronik Gmbh Richtungsabhaengiger breitbanduebertrager
JPS55138291A (en) * 1979-04-11 1980-10-28 Alps Electric Co Ltd Substrate for mounting electric parts
DE3434891A1 (de) * 1984-09-22 1986-04-03 Robert Bosch Gmbh, 7000 Stuttgart Hf-breitbanduebertragerschaltung

Also Published As

Publication number Publication date
ATE47767T1 (de) 1989-11-15
DK493686A (da) 1987-04-17
DE3666744D1 (en) 1989-12-07
DK493686D0 (da) 1986-10-15
EP0218846A1 (de) 1987-04-22
DE3536799A1 (de) 1987-04-16
DK163904B (da) 1992-04-13
DK163904C (da) 1992-09-14

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