GB1452017A - Radiating coaxial cable - Google Patents
Radiating coaxial cableInfo
- Publication number
- GB1452017A GB1452017A GB4108674A GB4108674A GB1452017A GB 1452017 A GB1452017 A GB 1452017A GB 4108674 A GB4108674 A GB 4108674A GB 4108674 A GB4108674 A GB 4108674A GB 1452017 A GB1452017 A GB 1452017A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- slots
- shield
- array
- perturbing element
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
-
- 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
Landscapes
- Waveguide Aerials (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
1452017 Aerials TIMES WIRE & CABLE CO 20 Sept 1974 [25 Sept 1973] 41086/74 Heading H4A A radiating high frequency transmitting cable comprises at least one centre conductor; a solid dielectric material layer enclosing the conductor or conductors; at least one field perturbing element with electrical properties different from those of the dielectric layer embedded a predetermined amount in the surface of the dielectric layer so that a major portion of its length is angularly oriented with respect to the centre conductor or conductors, and an outer apertured conductor and radiation shield element enclosing the dielectric layer and field perturbing element for at least a portion of the length of the cable and being in contact with the field perturbing element, the aperture of the shield element leaving at least a portion of the field perturbing element and adjacent dielectric layer unshielded in an area of the cable covered by the shield element. As described, a single centre conductor 1 is provided with an insulating surround 2 of polythene or other suitable dielectric material. The field perturbing element 3 comprises one or more strands of aluminium wire coiled about, and embedded in, the surface of the insulation 2. In one embodiment an outer shield 7, Fig. 3, of thin aluminium foil is tightly wrapped around the cable, and provides a longitudinally extending radiating slot 8, which is crossed by successive turns of the element 3. An overall insulating sheathing may be provided. It is stated that the effect of the field perturbing element is to enhance radiation from the slot. In order to level up the intensity of radiation along the cable, the winding pitch of the perturbing element and/or its degree of embedment in the insulation may be systematically varied. Instead of a continuous radiating slot, an array of slots may be provided, each slot being crossed by the field perturbing element. In one embodiment, the outer shield is continuous save for an array of longitudinally disposed, spaced apart, rectangular slots (Fig. 7, not shown). In another embodiment, slots are formed at intervals in a conductive tape, which is then close wrapped over the perturbing element on the surface of the cable insulation. An array of angularly disposed slots is thus produced (Fig. 8, not shown). In another embodiment, the cable of Fig. 3, is further provided with a spirally wound conductive tape 10, Fig. 6, over the shield 7, whereby an array of slots is formed from the continuous slot 8. As is shown in Fig. 9, a loosely braided or discontinuous outer shield 15, can provide openings 16 which act as an array of slots.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US400532A US3870977A (en) | 1973-09-25 | 1973-09-25 | Radiating coaxial cable |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1452017A true GB1452017A (en) | 1976-10-06 |
Family
ID=23583986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4108674A Expired GB1452017A (en) | 1973-09-25 | 1974-09-20 | Radiating coaxial cable |
Country Status (6)
Country | Link |
---|---|
US (1) | US3870977A (en) |
JP (1) | JPS546350B2 (en) |
CA (1) | CA1000818A (en) |
DE (1) | DE2445576A1 (en) |
FR (1) | FR2245096B3 (en) |
GB (1) | GB1452017A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127621A (en) * | 1982-09-20 | 1984-04-11 | Control Data Canada | Method of manufacturing a leaky coaxial cable |
GB2236907A (en) * | 1989-09-20 | 1991-04-17 | Beam Company Limited | Coaxial slot antenna |
WO2022193755A1 (en) * | 2021-03-17 | 2022-09-22 | 江苏亨鑫科技有限公司 | Emergency leakage coaxial cable |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3975700A (en) * | 1967-04-21 | 1976-08-17 | Carrier Communications, Inc. | Radio-frequency signaling cable for inductive-carrier communications systems |
DE2708070C3 (en) * | 1977-02-22 | 1980-09-04 | Aeg-Telefunken Kabelwerke Ag, Rheydt, 4050 Moenchengladbach | Radiating high frequency coaxial cable |
US4157518A (en) * | 1977-07-27 | 1979-06-05 | Belden Corporation | Leaky coaxial cable having shield layer with uniform gap |
DE2835241A1 (en) * | 1978-08-11 | 1980-02-28 | Aeg Telefunken Kabelwerke | Coaxial radiator cable for aerials - has radiation apertures in outer conductor and has additional fibre optic conductors in outer sheath |
CA1079504A (en) * | 1978-10-13 | 1980-06-17 | Control Data Canada | Method of producing coaxial cable |
US4641110A (en) * | 1984-06-13 | 1987-02-03 | Adams-Russell Company, Inc. | Shielded radio frequency transmission cable having propagation constant enhancing means |
CA1228900A (en) * | 1985-01-14 | 1987-11-03 | Melvin C. Maki | Leaky coaxial cable |
US4987394A (en) * | 1987-12-01 | 1991-01-22 | Senstar Corporation | Leaky cables |
US4907008A (en) * | 1988-04-01 | 1990-03-06 | Andrew Corporation | Antenna for transmitting circularly polarized television signals |
DE19614362C1 (en) * | 1996-04-11 | 1997-07-31 | Siemens Ag | Antenna, esp. for vehicle theft protection system |
US5834688A (en) * | 1996-10-24 | 1998-11-10 | Senstar Stellar Corporation | Electromagnetic intruder detector sensor cable |
US5898350A (en) * | 1997-11-13 | 1999-04-27 | Radio Frequency Systems, Inc. | Radiating coaxial cable and method for making the same |
US6396452B1 (en) * | 1999-01-20 | 2002-05-28 | Watts Antenna Co | Slotted cable antenna structure |
US6765461B1 (en) * | 2003-04-30 | 2004-07-20 | Agilent Technologies, Inc. | Asymmetric support for high frequency transmission lines |
PL1860725T3 (en) * | 2005-02-24 | 2013-01-31 | Obshchestvo S Ogranichennoi Otvetstvennostyu Veritel | Radiation-emitting cable and a radiation-emitting element comprised therein |
DE602006001728D1 (en) * | 2006-02-02 | 2008-08-21 | Gore W L & Ass Gmbh | Antenna with radiating coaxial cable |
JP5232416B2 (en) * | 2007-07-26 | 2013-07-10 | 株式会社フジクラ | Leaky coaxial cable manufacturing method and leaky coaxial cable |
US7834270B2 (en) | 2008-07-07 | 2010-11-16 | Imris Inc. | Floating segmented shield cable assembly |
CA2636936C (en) * | 2008-07-07 | 2013-05-14 | Imris Inc. | Floating segmented shield cable assembly |
US9375272B2 (en) * | 2008-10-13 | 2016-06-28 | Covidien Lp | Antenna assemblies for medical applications |
JP5014305B2 (en) * | 2008-10-22 | 2012-08-29 | 株式会社フジクラ | Leaky coaxial cable and manufacturing method thereof |
US8197473B2 (en) | 2009-02-20 | 2012-06-12 | Vivant Medical, Inc. | Leaky-wave antennas for medical applications |
US8235981B2 (en) | 2009-06-02 | 2012-08-07 | Vivant Medical, Inc. | Electrosurgical devices with directional radiation pattern |
US20140209347A1 (en) * | 2013-01-29 | 2014-07-31 | Tyco Electronics Corporation | Cable Having a Sparse Shield |
US9991023B2 (en) | 2013-01-29 | 2018-06-05 | Creganna Unlimited Company | Interconnect cable having insulated wires with a conductive coating |
WO2018022725A1 (en) | 2016-07-26 | 2018-02-01 | General Cable Technologies Corporation | Cable having shielding tape wth conductive shielding segments |
US10517198B1 (en) | 2018-06-14 | 2019-12-24 | General Cable Technologies Corporation | Cable having shielding tape with conductive shielding segments |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633532A (en) * | 1948-02-06 | 1953-03-31 | Int Standard Electric Corp | Helically slotted cylindrical antenna |
US2816285A (en) * | 1953-12-01 | 1957-12-10 | Raytheon Mfg Co | Directive antenna |
FR1160874A (en) * | 1956-11-21 | 1958-08-12 | Csf | Improvements to directive antennas |
US2981947A (en) * | 1957-09-24 | 1961-04-25 | Rca Corp | Coupling device for slot antenna |
US3077569A (en) * | 1959-11-03 | 1963-02-12 | Ikrath Kurt | Surface wave launcher |
-
1973
- 1973-09-25 US US400532A patent/US3870977A/en not_active Expired - Lifetime
-
1974
- 1974-09-20 GB GB4108674A patent/GB1452017A/en not_active Expired
- 1974-09-23 CA CA209,969A patent/CA1000818A/en not_active Expired
- 1974-09-24 DE DE19742445576 patent/DE2445576A1/en active Pending
- 1974-09-24 FR FR7432213A patent/FR2245096B3/fr not_active Expired
- 1974-09-25 JP JP11042474A patent/JPS546350B2/ja not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127621A (en) * | 1982-09-20 | 1984-04-11 | Control Data Canada | Method of manufacturing a leaky coaxial cable |
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 |
WO2022193755A1 (en) * | 2021-03-17 | 2022-09-22 | 江苏亨鑫科技有限公司 | Emergency leakage coaxial cable |
Also Published As
Publication number | Publication date |
---|---|
JPS5061966A (en) | 1975-05-27 |
FR2245096A1 (en) | 1975-04-18 |
CA1000818A (en) | 1976-11-30 |
DE2445576A1 (en) | 1975-03-27 |
JPS546350B2 (en) | 1979-03-27 |
FR2245096B3 (en) | 1977-07-01 |
US3870977A (en) | 1975-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |