GB1179526A - Improvements in or relating to Leaky-Wave Coaxial Cable - Google Patents

Improvements in or relating to Leaky-Wave Coaxial Cable

Info

Publication number
GB1179526A
GB1179526A GB513268A GB513268A GB1179526A GB 1179526 A GB1179526 A GB 1179526A GB 513268 A GB513268 A GB 513268A GB 513268 A GB513268 A GB 513268A GB 1179526 A GB1179526 A GB 1179526A
Authority
GB
United Kingdom
Prior art keywords
leaky
cable
coaxial cable
insulation
wave
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
GB513268A
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1179526A publication Critical patent/GB1179526A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1808—Construction of the conductors

Abstract

1,179,526. Aerials; radio signalling. SUMITOMO ELECTRIC INDUSTRIES Ltd. 1 Feb., 1968 [3 Feb., 1967], No. 5132/68. Headings H4A and H4L. In a leaky-wave coaxial cable a plurality of slots are provided on the surface of its outer conductor which are spaced apart by a centreto-centre distance of #g/2 (#g = wavelength in the coaxial cable at the frequency used) and have mirror symmetry of each adjacent pair with respect to a plane normal to the cable axis and midway between them. The leaky-wave radiated has electric field components in circumferential directions. As described, a leaky-wave coaxial cable comprises a central conductor 1, Fig. 4a, insulation 2, and outer conductor 3, and a protective covering 4. The outer conductor 3, Fig. 4b, consists of a zig-zag shaped metal tape which is wrapped around the insulation 2, Fig. 4a, and is secured with circumferential metal binders 7 to form pairs of inclined slots 5, 6 along the cable. In a second embodiment (Fig. 5, not shown) a zig-zag tape wrapped around the insulation is secured by two longitudinally extending metal tapes, which also form slots along the cable. In a third embodiment (Figs. 6a, 6b, not shown) a zig-zag tape is provided with tags extending from the pointed portions thereof which, when the tape is folded around the insulation, bridge across and form slots along the cable. In other embodiments, the slots are Z-shaped, each one of a pair facing oppositely to the other. A leaky-wave coaxial cable of the kind described may be installed parallel to a track on which a moving vehicle travels, and it propagates a vertically polarized wave which may be received by an aerial provided on said moving vehicle.
GB513268A 1967-02-03 1968-02-01 Improvements in or relating to Leaky-Wave Coaxial Cable Expired GB1179526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP703067 1967-02-03

Publications (1)

Publication Number Publication Date
GB1179526A true GB1179526A (en) 1970-01-28

Family

ID=11654624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB513268A Expired GB1179526A (en) 1967-02-03 1968-02-01 Improvements in or relating to Leaky-Wave Coaxial Cable

Country Status (3)

Country Link
DE (1) DE1690138C2 (en)
FR (1) FR1552604A (en)
GB (1) GB1179526A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236907A (en) * 1989-09-20 1991-04-17 Beam Company Limited Coaxial slot antenna
CN101950838A (en) * 2010-09-21 2011-01-19 江苏通鼎光电股份有限公司 Leaky coaxial cable
CN112908551A (en) * 2021-01-18 2021-06-04 成都大唐线缆有限公司 Leakage coaxial cable
CN113904118A (en) * 2021-09-15 2022-01-07 哈尔滨吉赫科技有限责任公司 Coaxial double-slit antenna horizontally erected for realizing vertical polarization and feeding method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004882A1 (en) * 1980-02-09 1981-08-20 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover RADIANT COAXIAL HIGH FREQUENCY CABLE
DE3515724A1 (en) * 1985-05-02 1986-11-06 AEG KABEL AG, 4050 Mönchengladbach Electrical flat stripline for telecommunications transmission
DE3641086C1 (en) * 1986-12-02 1988-03-31 Spinner Gmbh Elektrotech Waveguide absorber or attenuator
DE3723951A1 (en) * 1987-07-20 1989-02-02 Rheydt Kabelwerk Ag ARRANGEMENT FOR TRANSMITTING HIGH-FREQUENCY SIGNALS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044199B (en) * 1955-02-19 1958-11-20 Siemens Ag Wire or cable with openings for electromagnetic fields

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546096A (en) * 1989-09-13 1996-08-13 Beam Company Limited Traveling-wave feeder type coaxial slot antenna
GB2236907A (en) * 1989-09-20 1991-04-17 Beam Company Limited Coaxial slot antenna
GB2236907B (en) * 1989-09-20 1994-04-13 Beam Company Limited Travelling-wave feeder type coaxial slot antenna
CN101950838A (en) * 2010-09-21 2011-01-19 江苏通鼎光电股份有限公司 Leaky coaxial cable
CN112908551A (en) * 2021-01-18 2021-06-04 成都大唐线缆有限公司 Leakage coaxial cable
CN112908551B (en) * 2021-01-18 2022-08-26 成都大唐线缆有限公司 Leakage coaxial cable
CN113904118A (en) * 2021-09-15 2022-01-07 哈尔滨吉赫科技有限责任公司 Coaxial double-slit antenna horizontally erected for realizing vertical polarization and feeding method thereof
CN113904118B (en) * 2021-09-15 2024-01-09 哈尔滨吉赫科技有限责任公司 Coaxial double-slot antenna capable of realizing vertical polarization by horizontal erection and feeding method thereof

Also Published As

Publication number Publication date
DE1690138B1 (en) 1973-07-05
DE1690138C2 (en) 1974-01-24
FR1552604A (en) 1969-01-03

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