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US4800350: Dielectric waveguide using powdered material

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Filing Information

Inventor(s) William B. Bridges · William M. Bruno ·
Assignee(s) The United States of America as represented by the Secretary of the Navy ·
Attorney/Agent(s) Kenneth W. Hairston ·
Primary Examiner Eugene R. Laroche ·
Assistant Examiner Benny T. Lee ·
Application Number US6737122
Filing date 05/23/1985
Issue date 01/24/1989
Predicted expiration date 01/24/2006
U.S. Classifications 333/239  · 333/241  ·
International Classifications H01P 316  ·
Kind CodeA
International Classifications 333239;242;248;241 ·
18 Claims, No Drawings


Abstract

A flexible low-loss dielectric waveguide is made from a flexible low-dielectric constant hollow cylinder filled with high-dielectric constant powder. Alternatively, a rigid or semi-rigid waveguide comprises a groove formed in a low-dielectric constant substrate filled with high-dielectric constant powder.

Independent Claims | See all claims (18)

  1. 1. A low-loss dielectric waveguide for replacing conventional electrical metallic waveguides and integrated circuits, comprising:(a) a waveguide housing made from a section of flexible low dielectric constant tubing which is operable to readily be bent to conform to any of various desired electrical waveguide and integrated circuit component shapes;(b) the interior of said section of flexible low dielectric constant tubing being entirely filled with a loose powder having low-loss and a high dielectric constant to provide a purely powdered waveguide core therein which conforms to the interior configuration of said flexible tubing;(c) a very low dielectric constant sealing means provided at opposite ends of said section of flexible low dielectric constant tubing for retaining said low-loss, high dielectric constant powder within said section of flexible low dielectric constant tubing and preventing spilling of said low-loss, high dielectric constant powder; wherein said waveguide can be bent to physically conform to the shape of various electrical waveguide and integrated circuit components as desired.
  2. 8. A low-loss dielectric waveguide for replacing conventional electrical metallic waveguides and integrated circuits, comprising:(a) a housing consisting of a substrate of low dielectric constant material having at least one groove formed therein of desired electrical waveguide circuit configuration;(b) the interior of said at least one groove being entirely filled with a loose powder consisting solely of a low-loss and high dielectric constant homogeneous material to provide a purely powdered core therein;(c) means for retaining said high dielectric constant powder within said at least one low dielectric constant housing groove and for preventing spilling of said high dielectric constant powder therefrom;(d) means for waveguide coupling said powdered core into an electrical circuit.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2897461 BOEING CO Ashbaugh et al. Jul 1959
US2996686 Okaya Aug 1961
US3157847 WILLIAMS ROBERT M Williams Nov 1964
US3435401 TEXAS INSTRUMENTS INC Epstein Mar 1969
US4097826 Epsilon Lambda Electronics Corp. Knox et al. Jun 1978
US4422719 Space-Lyte International, Inc. Orcutt Dec 1983

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
JP0166804Oct 1983
GB1558404PLESSEY CO LTDJan 1980

Other Publications

Kelly, J. M., et al; "Wave-Guide Measurements in the Microwave Region on al Powders suspended in Paraffin Wax"; Journal of Applied Physics; vol. 24, No. 3, Mar. 1953; pp. 258-262.

Patent Family

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