NL7101966A - - Google Patents

Info

Publication number
NL7101966A
NL7101966A NL7101966A NL7101966A NL7101966A NL 7101966 A NL7101966 A NL 7101966A NL 7101966 A NL7101966 A NL 7101966A NL 7101966 A NL7101966 A NL 7101966A NL 7101966 A NL7101966 A NL 7101966A
Authority
NL
Netherlands
Application number
NL7101966A
Other versions
NL149047B (nl
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 filed Critical
Publication of NL7101966A publication Critical patent/NL7101966A/xx
Publication of NL149047B publication Critical patent/NL149047B/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/19—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions
    • G06G7/1928—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions for forming correlation integrals; for forming convolution integrals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/203—Leaky coaxial lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/28—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Waveguide Aerials (AREA)
  • Communication Cables (AREA)
NL717101966A 1970-02-18 1971-02-15 Transmissiemedium voor radio-frequente signalen in tunnels en dergelijke. NL149047B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE85381 1970-02-18

Publications (2)

Publication Number Publication Date
NL7101966A true NL7101966A (de) 1971-08-20
NL149047B NL149047B (nl) 1976-03-15

Family

ID=3841321

Family Applications (1)

Application Number Title Priority Date Filing Date
NL717101966A NL149047B (nl) 1970-02-18 1971-02-15 Transmissiemedium voor radio-frequente signalen in tunnels en dergelijke.

Country Status (9)

Country Link
JP (1) JPS553855B1 (de)
BE (1) BE746177A (de)
CA (1) CA931238A (de)
DE (1) DE2104467C3 (de)
FR (1) FR2080581B1 (de)
GB (1) GB1327864A (de)
LU (1) LU62476A1 (de)
NL (1) NL149047B (de)
ZA (1) ZA71950B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE834291A (fr) * 1975-10-07 1976-02-02 Systeme de radiocommunications pour milieux confines
DE3004882A1 (de) * 1980-02-09 1981-08-20 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Abstrahlendes koaxiales hochfrequenz-kabel
GB2212985A (en) * 1987-12-01 1989-08-02 Alison Microsystems Limited Slotted antenna
GB2235336B (en) * 1989-06-23 1994-05-11 Hunting Eng Ltd Communication via leaky cables
FR2659512B1 (fr) * 1990-03-09 1994-04-29 Cogema Installation de communication en hyperfrequences.
GB2415544B (en) 2004-06-25 2006-11-29 Motorola Inc RF communication device and method of using it and antenna and antenna construction for use in the device and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455224A (en) * 1944-06-16 1948-11-30 Buchwalter Louise Antenna
US3364489A (en) * 1964-09-17 1968-01-16 Melpar Inc Traveling wave antenna having radiator elements with doubly periodic spacing

Also Published As

Publication number Publication date
NL149047B (nl) 1976-03-15
DE2104467A1 (de) 1971-08-26
LU62476A1 (de) 1971-08-11
BE746177A (fr) 1970-08-18
JPS553855B1 (de) 1980-01-28
DE2104467C3 (de) 1978-09-07
FR2080581B1 (de) 1974-10-11
ZA71950B (en) 1971-12-29
CA931238A (en) 1973-07-31
FR2080581A1 (de) 1971-11-19
DE2104467B2 (de) 1973-04-05
GB1327864A (en) 1973-08-22

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: INDUSTRIES