EP0978894A2 - Dérivateur de surtension coaxial à large bande - Google Patents

Dérivateur de surtension coaxial à large bande Download PDF

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Publication number
EP0978894A2
EP0978894A2 EP99115530A EP99115530A EP0978894A2 EP 0978894 A2 EP0978894 A2 EP 0978894A2 EP 99115530 A EP99115530 A EP 99115530A EP 99115530 A EP99115530 A EP 99115530A EP 0978894 A2 EP0978894 A2 EP 0978894A2
Authority
EP
European Patent Office
Prior art keywords
line
surge arrester
section
coaxial
length
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.)
Granted
Application number
EP99115530A
Other languages
German (de)
English (en)
Other versions
EP0978894B1 (fr
EP0978894A3 (fr
Inventor
Manfred Dr. Lang
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.)
Spinner GmbH
Original Assignee
Spinner 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 Spinner GmbH filed Critical Spinner GmbH
Publication of EP0978894A2 publication Critical patent/EP0978894A2/fr
Publication of EP0978894A3 publication Critical patent/EP0978894A3/fr
Application granted granted Critical
Publication of EP0978894B1 publication Critical patent/EP0978894B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/202—Coaxial filters

Definitions

  • the invention relates to a broadband coaxial surge arrester, with one to a coaxial line section short-circuit line connected in parallel and one in Series switched idle line.
  • Coaxial surge arresters which consist of a coaxial line section with a short-circuit line connected in parallel, generally a ⁇ / 4 short-circuit line, are known. They are very narrow-band. Even if a VSWR of 1.1 is permitted, only a relative bandwidth of 20% can be achieved. A larger bandwidth can be achieved if the characteristic impedance Z K of the short-circuit line is made larger than the characteristic impedance Z O of the coaxial line section. However, Z K cannot be made arbitrarily large since the remaining residual interference voltage is proportional to Z K.
  • a bandwidth of approximately one octave can be achieved for a VSWR of 1.1 (corresponding to a reflection factor of approximately 0.05) at the edges of the transmission range .
  • the invention has for its object a broadband to create coaxial surge arrester connected to the Edges of a given frequency range has a low reflection factor.
  • connection point of the short-circuit line and the connection point is a transforming one coaxial line section with a length ⁇ / 4.
  • ⁇ is that of the center frequency of the specified frequency range corresponding wavelength. It was determined and can also be shown arithmetically that with the Proposed surge arrester the frequency dependent Course of the reflection factor two very small minima sufficient Bandwidth on both sides of one in the not maximum used. The minima can be more than one octave apart. Your location and their size depend on the dimensioning of the transforming involved Line elements, i.e. the short-circuit line, of the transforming line section and the idling Line, from.
  • the length of the serial transforming Line piece is chosen so that the frequency-dependent Curve reflecting the course of the reflection factor two different operating frequencies of the surge arrester each has a minimum (claim 2).
  • the wave resistance of the short-circuit line is expedient high impedance and the characteristic impedance of the idling Cable with lower resistance than the characteristic impedance of the Dimensioned coaxial line section (claim 3).
  • the characteristic impedance of the short-circuit line two to three times the characteristic impedance of the coaxial line and the characteristic impedance of the idle line about half to a quarter of the wave resistance of the Coaxial line section. (Claim 4).
  • the surge arrester on the given proposal also has the advantage of being smaller than a surge arrester according to the state of the art, because both Length of the short-circuit line as well as the length of the open circuit Line can be chosen to be about 20 to 30% smaller than ⁇ / 4 be (claims 5 and 6).
  • the length of the serial transforming coaxial line piece about 20 to 50% of ⁇ / 4 (claim 7).
  • the idle Line from a section of reduced diameter the inner conductor of the transforming coaxial line section, a sleeve surrounding this section from a dielectric material whose length is the length of the idle Line corresponds and coaxial from a sleeve enclosing tubular portion of the coaxial line continuing inner conductor in cooperation with the continuous Outer conductor of the surge arrester (claim 8).
  • the surge arrester shown in Fig. 1 is here designed as a coaxial assembly, which on their two Ends with plug connections basically any and here is of a type of no particular interest.
  • the surge arrester is reciprocal and includes a coaxial Line section 1, a short-circuit line connected in parallel 2, a short, transforming coaxial Line piece 3 and an idling one connected in series Line 4.
  • the outer conductor 25 of the short-circuit line 2 can be part of the other line sections common Outer conductor 5 are considered.
  • With the inner conductor 11 of the coaxial line section 1 is, as usual, the inner conductor 21 of the short-circuit line 2 connected, etc. here after the Plug / socket principle. At its other end is the inner conductor 21 electrically connected to the outer conductor 25.
  • the length of the short-circuit line is less than ⁇ / 4, where ⁇ is the arithmetic, but not used, band center frequency corresponding wavelength is.
  • the diameter of the inner conductor 21 and the inner diameter of the outer conductor 25 of the short-circuit line are according to the known context chosen so that the characteristic impedance of the short-circuit line about two to three times the wave resistance the coaxial line.
  • the transforming line section 3 follows in Series the idle line 4. This can be about have the same length as the short-circuit line 2 and includes an inner conductor 41 which continues the inner conductor 31, whose diameter is considerably smaller than that of the Inner conductor 31 is.
  • the idle line also includes a sleeve 42 surrounding this inner conductor 41 from a dielectric material.
  • the sleeve 42 has a circumferential Flange 42a, the tubular surrounding the sleeve Section 45 of the inner conductor continuing the coaxial line from the inner conductor 41 of the transforming line section 3 electrically separates. That is why the tubular Section 45 the outer conductor of the idle line 4.
  • According to the given diameter ratios and the dielectric constant of the sleeve 42 has a characteristic impedance, which is about half to a quarter of the wave resistance of the coaxial line section 1.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Aerials (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
EP99115530A 1998-08-06 1999-08-05 Dérivateur de surtension coaxial à large bande Expired - Lifetime EP0978894B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19835531 1998-08-06
DE19835531 1998-08-06

Publications (3)

Publication Number Publication Date
EP0978894A2 true EP0978894A2 (fr) 2000-02-09
EP0978894A3 EP0978894A3 (fr) 2001-07-25
EP0978894B1 EP0978894B1 (fr) 2004-11-17

Family

ID=7876650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115530A Expired - Lifetime EP0978894B1 (fr) 1998-08-06 1999-08-05 Dérivateur de surtension coaxial à large bande

Country Status (6)

Country Link
US (1) US6266224B1 (fr)
EP (1) EP0978894B1 (fr)
AT (1) ATE282898T1 (fr)
DE (1) DE59911074D1 (fr)
ES (1) ES2232053T3 (fr)
HK (1) HK1025677A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003007424A1 (fr) * 2001-07-10 2003-01-23 Rohde & Schwarz Gmbh & Co. Kg Dispositif parafoudre a large bande
EP1691379A3 (fr) * 2005-02-15 2006-11-08 Spinner GmbH Dérivateur de surtension coaxial
DE10241431B4 (de) * 2001-09-06 2012-12-27 Ntt Docomo Inc. Überspannungsschutzsystem für eine koaxiale Übertragungsleitung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936869C1 (de) 1999-08-05 2001-03-08 Spinner Gmbh Elektrotech Koaxialer Überspannungsableiter
US6926555B2 (en) * 2003-10-09 2005-08-09 Radio Frequency Systems, Inc. Tuned radio frequency coaxial connector
EP1885016B1 (fr) * 2006-07-27 2010-08-18 Huber+Suhner AG Protection contre la surtension pour une conduite coaxiale
US8134818B2 (en) * 2008-04-08 2012-03-13 John Mezzalingua Associates, Inc. Quarter wave stub surge suppressor with coupled pins
DE102009007622B4 (de) 2009-02-05 2011-04-21 Spinner Gmbh Koaxialer Überspannungsableiter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660261A5 (en) * 1982-12-30 1987-03-31 Huber+Suhner Ag EMP suppressor in a coaxial conductor
CH676900A5 (en) * 1989-08-29 1991-03-15 Huber+Suhner Ag Filter for coaxial cable coupling - uses coaxial ceramics resonator for providing frequency selective filter
US5764114A (en) * 1995-03-31 1998-06-09 Huber & Suhner Ag EMP-filter in a coaxial line

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58225585A (ja) * 1982-06-23 1983-12-27 ヒロセ電機株式会社 同軸型避雷構造
JPS58225586A (ja) * 1982-06-23 1983-12-27 ヒロセ電機株式会社 同軸型避雷構造
DE59804846D1 (de) * 1997-01-27 2002-08-29 Huber & Suhner Ag Herisau EMP-Ableiter
US5953195A (en) * 1997-02-26 1999-09-14 Reltec Corporation Coaxial protector
US5844766A (en) * 1997-09-09 1998-12-01 Forem S.R.L. Lightning supression system for tower mounted antenna systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660261A5 (en) * 1982-12-30 1987-03-31 Huber+Suhner Ag EMP suppressor in a coaxial conductor
CH676900A5 (en) * 1989-08-29 1991-03-15 Huber+Suhner Ag Filter for coaxial cable coupling - uses coaxial ceramics resonator for providing frequency selective filter
US5764114A (en) * 1995-03-31 1998-06-09 Huber & Suhner Ag EMP-filter in a coaxial line

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003007424A1 (fr) * 2001-07-10 2003-01-23 Rohde & Schwarz Gmbh & Co. Kg Dispositif parafoudre a large bande
DE10241431B4 (de) * 2001-09-06 2012-12-27 Ntt Docomo Inc. Überspannungsschutzsystem für eine koaxiale Übertragungsleitung
EP1691379A3 (fr) * 2005-02-15 2006-11-08 Spinner GmbH Dérivateur de surtension coaxial
EP1763041A1 (fr) * 2005-02-15 2007-03-14 Spinner GmbH Dérivateur de surtension coaxial

Also Published As

Publication number Publication date
DE59911074D1 (de) 2004-12-23
HK1025677A1 (en) 2000-11-17
US6266224B1 (en) 2001-07-24
ES2232053T3 (es) 2005-05-16
ATE282898T1 (de) 2004-12-15
EP0978894B1 (fr) 2004-11-17
EP0978894A3 (fr) 2001-07-25

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