GB1156931A - Improvements in Waveguide Components - Google Patents

Improvements in Waveguide Components

Info

Publication number
GB1156931A
GB1156931A GB3831166A GB3831166A GB1156931A GB 1156931 A GB1156931 A GB 1156931A GB 3831166 A GB3831166 A GB 3831166A GB 3831166 A GB3831166 A GB 3831166A GB 1156931 A GB1156931 A GB 1156931A
Authority
GB
United Kingdom
Prior art keywords
foam
waveguide
aug
solution
metallic coating
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
GB3831166A
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.)
US Government
Original Assignee
US Government
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 US Government filed Critical US Government
Publication of GB1156931A publication Critical patent/GB1156931A/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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043—Slotted waveguides
    • H01Q21/005—Slotted waveguides arrays

Abstract

1,156,931. Waveguides and directional couplers. UNITED STATES OF AMERICA, ARMY, SECRETARY OF. 26 Aug., 1966 [26 Aug., 1965], No. 38311/66. Heading H1W. [Also in Division H4] A waveguide component comprises a rigid, low-loss, foam dielectric material having a dielectric constant approximately equal to that of air and having the internal shape of the component, selected areas of its surface being covered with a thin metallic coating sufficient to support r.f. currents. The material may comprise an organic foam, e.g. foamed polystyrene or polyurethane, or an inorganic foam e.g. borosilicate cellular glass or a material consisting of silica glass in the form of tiny spheres pressed together. After shaping, the dielectric material is de-glazed by abrasion (scrubbing with pumice and water may be necessary in some cases) and then cleaned by an appropriate alkaline or acid cleaner. A solution of stannous chloride is used to develop a film of tin on the surface which is then treated with an activator solution e.g. palladium chloride. The material is then immersed in an electroless copper bath containing Fehling-formaldehyde solution where chemical reduction takes place. Apertures in the coated surface may be produced by milling or by masking appropriate areas before the plating process. The antenna shown comprises slots 13 in a metallic coating 11 upon the surface of a foam dielectric body 12. Waveguide channel 14 are defined by internally plated holes 15 which behave as metal posts. Conventional waveguides and waveguide flanges may be made using the method of the invention (Fig. 4, not shown). Fig. 3 shows in a self-explanatory manner the way in which the invention is applied to the manufacture of a directional coupler.
GB3831166A 1965-08-26 1966-08-26 Improvements in Waveguide Components Expired GB1156931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48295565A 1965-08-26 1965-08-26

Publications (1)

Publication Number Publication Date
GB1156931A true GB1156931A (en) 1969-07-02

Family

ID=23918071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3831166A Expired GB1156931A (en) 1965-08-26 1966-08-26 Improvements in Waveguide Components

Country Status (1)

Country Link
GB (1) GB1156931A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085161A1 (en) * 1969-11-19 1971-12-24 Fabr Instr Mesure
EP0828309A2 (en) * 1996-09-05 1998-03-11 Daimler-Benz Aerospace Aktiengesellschaft Method of fabricating electrical components
EP0865097A1 (en) * 1997-03-13 1998-09-16 Dassault Electronique Method and apparatus for the fabrication of slotted waveguides, particularly usable for millimetric wavelengths
FR2849719A1 (en) * 2003-01-03 2004-07-09 Thomson Licensing Sa Hyper frequency low pass filter has coaxial structure with inner and outer conductive armatures carrying series of concentric plates
JP5173810B2 (en) * 2006-08-11 2013-04-03 古野電気株式会社 Slot array antenna

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085161A1 (en) * 1969-11-19 1971-12-24 Fabr Instr Mesure
EP0828309A2 (en) * 1996-09-05 1998-03-11 Daimler-Benz Aerospace Aktiengesellschaft Method of fabricating electrical components
EP0828309A3 (en) * 1996-09-05 2000-04-19 DaimlerChrysler Aerospace Aktiengesellschaft Method of fabricating electrical components
EP0865097A1 (en) * 1997-03-13 1998-09-16 Dassault Electronique Method and apparatus for the fabrication of slotted waveguides, particularly usable for millimetric wavelengths
FR2760901A1 (en) * 1997-03-13 1998-09-18 Dassault Electronique METHOD AND DEVICE FOR MANUFACTURING ANTENNAS IN SLOTTED WAVY GUIDES, IN PARTICULAR FOR USE IN MILLIMETER WAVELENGTHS
FR2849719A1 (en) * 2003-01-03 2004-07-09 Thomson Licensing Sa Hyper frequency low pass filter has coaxial structure with inner and outer conductive armatures carrying series of concentric plates
WO2004066429A2 (en) * 2003-01-03 2004-08-05 Thomson Licensing S.A Microwave filter comprising a coaxial structure, which is made from metallised synthetic foam
WO2004066429A3 (en) * 2003-01-03 2004-09-10 Thomson Licensing Sa Microwave filter comprising a coaxial structure, which is made from metallised synthetic foam
US7355495B2 (en) 2003-01-03 2008-04-08 Thomson Licensing Microwave filter comprising a coaxial structure with a metallized foam having a periodic profile
CN100583550C (en) * 2003-01-03 2010-01-20 汤姆森特许公司 Microwave filter has coaxial structure manufactured by metallized synthetic foam
JP5173810B2 (en) * 2006-08-11 2013-04-03 古野電気株式会社 Slot array antenna
US9136608B2 (en) 2006-08-11 2015-09-15 Furuno Electric Company Limited Slot array antenna

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees