DE3380679D1 - Blocking device for surface waves - Google Patents

Blocking device for surface waves

Info

Publication number
DE3380679D1
DE3380679D1 DE8383110857T DE3380679T DE3380679D1 DE 3380679 D1 DE3380679 D1 DE 3380679D1 DE 8383110857 T DE8383110857 T DE 8383110857T DE 3380679 T DE3380679 T DE 3380679T DE 3380679 D1 DE3380679 D1 DE 3380679D1
Authority
DE
Germany
Prior art keywords
coaxial cable
section
blocking device
surface waves
metallic
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
DE8383110857T
Other languages
German (de)
Inventor
Dieter Dipl Phys Schenkyr
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.)
RICHARD HIRSCHMANN GMBH & CO, 7300 ESSLINGEN, DE
Original Assignee
HIRSCHMANN RADIOTECHNIK
Richard Hirschmann Radiotechnisches Werk
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 HIRSCHMANN RADIOTECHNIK, Richard Hirschmann Radiotechnisches Werk filed Critical HIRSCHMANN RADIOTECHNIK
Priority to DE8383110857T priority Critical patent/DE3380679D1/en
Application granted granted Critical
Publication of DE3380679D1 publication Critical patent/DE3380679D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details

Landscapes

  • Details Of Aerials (AREA)
  • Road Signs Or Road Markings (AREA)
  • Lubricants (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Golf Clubs (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Prostheses (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Television Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Floating Material (AREA)
  • Catalysts (AREA)

Abstract

1. A blocking device for surface waves for a symmetrical antenna working in the operational frequency range with a connection dipole (1) and, connected to this directly or via a symmetrization element (2), a coaxial cable (8) with an external insulation sheath, preferred use of said antenna being for television reception over the entire UHF range of 470 - 790 MHz, for said blocking device for surface waves the starting section of the coaxial cable on the antenna side being located with clearance by means of a metallic bracket and a section of the coaxial cable connected to the starting section immediately at the metallic bracket, is characterized in that the section of the coaxial cable (8) located immediately at the metallic bracket (3, 13) is encircled by a metallic clip (5, 12) and that the lengths of the starting section on the antenna side (11, 19) as well as that of the section of the coaxial cable (8) encircled by the metallic clip are in each case one quarter of a wavelength within the operational frequency range.
DE8383110857T 1982-12-22 1983-10-29 Blocking device for surface waves Expired DE3380679D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8383110857T DE3380679D1 (en) 1982-12-22 1983-10-29 Blocking device for surface waves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823247389 DE3247389A1 (en) 1982-12-22 1982-12-22 SHAFT SHAFT LOCK
DE8383110857T DE3380679D1 (en) 1982-12-22 1983-10-29 Blocking device for surface waves

Publications (1)

Publication Number Publication Date
DE3380679D1 true DE3380679D1 (en) 1989-11-09

Family

ID=6181341

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19823247389 Granted DE3247389A1 (en) 1982-12-22 1982-12-22 SHAFT SHAFT LOCK
DE8383110857T Expired DE3380679D1 (en) 1982-12-22 1983-10-29 Blocking device for surface waves

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19823247389 Granted DE3247389A1 (en) 1982-12-22 1982-12-22 SHAFT SHAFT LOCK

Country Status (5)

Country Link
EP (1) EP0113818B1 (en)
AT (1) ATE46986T1 (en)
DE (2) DE3247389A1 (en)
DK (1) DK162667C (en)
FI (1) FI76450C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347792B (en) * 1999-03-10 2001-06-06 Andrew Jesman Antenna

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2018320A (en) * 1932-06-29 1935-10-22 Rca Corp Radio frequency transmission line
US3320556A (en) * 1963-05-23 1967-05-16 Bell Telephone Labor Inc Impedance transformer
US3680146A (en) * 1970-03-02 1972-07-25 Jerrold Electronics Corp Antenna system with ferrite radiation suppressors mounted on feed line

Also Published As

Publication number Publication date
DE3247389A1 (en) 1984-07-05
FI834685A (en) 1984-06-23
DK162667C (en) 1992-04-13
EP0113818B1 (en) 1989-10-04
DK588683D0 (en) 1983-12-21
FI834685A0 (en) 1983-12-20
DK162667B (en) 1991-11-25
EP0113818A2 (en) 1984-07-25
EP0113818A3 (en) 1986-03-26
DE3247389C2 (en) 1987-09-03
FI76450B (en) 1988-06-30
ATE46986T1 (en) 1989-10-15
FI76450C (en) 1988-10-10
DK588683A (en) 1984-06-23

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: RICHARD HIRSCHMANN GMBH & CO, 7300 ESSLINGEN, DE

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee