EP1020945A1 - Atténuateur ajustable - Google Patents

Atténuateur ajustable Download PDF

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Publication number
EP1020945A1
EP1020945A1 EP99124973A EP99124973A EP1020945A1 EP 1020945 A1 EP1020945 A1 EP 1020945A1 EP 99124973 A EP99124973 A EP 99124973A EP 99124973 A EP99124973 A EP 99124973A EP 1020945 A1 EP1020945 A1 EP 1020945A1
Authority
EP
European Patent Office
Prior art keywords
damping material
width
line
attenuator
damping
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Withdrawn
Application number
EP99124973A
Other languages
German (de)
English (en)
Inventor
Stefan Dr. Kern
Udo Pursche
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.)
Telent 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
Publication of EP1020945A1 publication Critical patent/EP1020945A1/fr
Withdrawn legal-status Critical Current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
    • H01P1/22—Attenuating devices
    • H01P1/227—Strip line attenuators

Definitions

  • the present invention relates to a matchable Attenuator, consisting of a planar line with Damping material applied to the side of the line.
  • the invention has for its object a matchable Attenuator of the type mentioned specify that with as little effort as possible and simple Can be adjusted to a desired damping value. A good one should be used across the entire adjustment range Adaptation is retained.
  • the damping material layer is advantageously also Trimmed with the help of a laser to such a width that sets a desired damping.
  • the attenuator shown in Figure 1 consists of a planar line 1 on one in the drawing plane lying substrate is applied.
  • This line 1 is on a length L, which is approximately half the operating wavelength ⁇ corresponds to the attenuator, reduced in width.
  • the through loss of line 1 can be very simple Modified in such a way that the width b of the two ⁇ / 2 long damping material layers 2 and 3 changed that means is reduced. Depending on the degree to which the width b the damping material layers 2 and 3 are changed, there is a certain damping value. There with one Laser a very precise and finely graduated change in width of the damping material layers 2 and 3 are performed is also a very precise damping adjustment a desired value is possible.
  • the width b ' the end portions 41, 42 and 51, 52 is opposite the width b of the ⁇ / 2 long part of the damping material layers 4 and 5 reduced.
  • line 1 is in the Range of the ⁇ / 4 long end portions 41, 42, 51, 52 of the Damping material layers reduced to a width w 'that but is larger than the width w in the range of ⁇ / 2 long Part of the damping material layers 4 and 5.
  • the damping can between 0.3 to 7 dB in an operating frequency range of Vote 23 to 28 GHz.
  • a two-stage Attenuator according to the embodiment of Figure 2 is a tuning range from 0.4 to 10.5 dB in one Frequency range from 20 GHz to 33 GHz possible. In both In some cases, the adjustment remains with any damping adjustment better than 15 dB.

Landscapes

  • Non-Reversible Transmitting Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Attenuators (AREA)
EP99124973A 1999-01-11 1999-12-15 Atténuateur ajustable Withdrawn EP1020945A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999100624 DE19900624C1 (de) 1999-01-11 1999-01-11 Abgleichbares Dämpfungsglied
DE19900624 1999-01-11

Publications (1)

Publication Number Publication Date
EP1020945A1 true EP1020945A1 (fr) 2000-07-19

Family

ID=7893889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124973A Withdrawn EP1020945A1 (fr) 1999-01-11 1999-12-15 Atténuateur ajustable

Country Status (3)

Country Link
EP (1) EP1020945A1 (fr)
BR (1) BR0000037A (fr)
DE (1) DE19900624C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003023893A1 (fr) * 2001-09-07 2003-03-20 The Boeing Company Ligne de retard a large bande avec temps de propagation de groupe constant
WO2004021504A1 (fr) * 2002-08-24 2004-03-11 Robert Bosch Gmbh Dephaseur coplanaire a attenuation constante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1456370A (en) * 1973-01-24 1976-11-24 Decca Ltd Microwave attenuator
US4349792A (en) * 1978-07-14 1982-09-14 Kings Electronics Co., Inc. Pi pad attenuator
EP0169694A2 (fr) * 1984-07-25 1986-01-29 Rca Licensing Corporation Composant supprimant de signaux à haute fréquence
JPH06177610A (ja) * 1992-12-04 1994-06-24 Fujitsu Ltd 固定減衰器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1456370A (en) * 1973-01-24 1976-11-24 Decca Ltd Microwave attenuator
US4349792A (en) * 1978-07-14 1982-09-14 Kings Electronics Co., Inc. Pi pad attenuator
EP0169694A2 (fr) * 1984-07-25 1986-01-29 Rca Licensing Corporation Composant supprimant de signaux à haute fréquence
JPH06177610A (ja) * 1992-12-04 1994-06-24 Fujitsu Ltd 固定減衰器

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
A.D. ARFIN ET AL.: "SHRINKING ATTENUATORS FOR MIC AND STRIPLINE APPLICATIONS", MICROWAVE JOURNAL., vol. 20, no. 5, May 1977 (1977-05-01), HORIZON HOUSE. DEDHAM., US, pages 51 - 52, XP002134732, ISSN: 0192-6225 *
J.P. PHILLIPS: "VARIABLE ATTENUATOR FOR MICROSTRIP", MOTOROLA TECHNICAL DISCLOSURE BULLETIN, vol. 3, no. 1, March 1983 (1983-03-01), MOTOROLA INC. SCHAUMBURG, ILLINOIS., US, pages 25 - 26, XP002134731 *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 509 (E - 1610) 26 September 1994 (1994-09-26) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003023893A1 (fr) * 2001-09-07 2003-03-20 The Boeing Company Ligne de retard a large bande avec temps de propagation de groupe constant
US6674339B2 (en) 2001-09-07 2004-01-06 The Boeing Company Ultra wideband frequency dependent attenuator with constant group delay
WO2004021504A1 (fr) * 2002-08-24 2004-03-11 Robert Bosch Gmbh Dephaseur coplanaire a attenuation constante

Also Published As

Publication number Publication date
DE19900624C1 (de) 2000-07-06
BR0000037A (pt) 2000-09-26

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