Dielectric waveguide delay line
AssigneeW. L. Gore & Associates, Inc.
InventorsJeffrey A. Walter, Kailash C. Garg, Joseph C. Rowan, Robert H. Gibson
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Abstract
A delay line is provided for effecting a desired delay in the transmission of electromagnetic waves in the microwave and millimeter range of the spectrum. The line comprises a length L of a dielectric waveguide for transmission of electromagnetic waves comprising a core of polytetrafluoroethylene having one or more layers of polytetrafluoroethylene overwrapped around the core, wherein T=KL/c, in which T is the total time delay , c is the velocity of light in free space and K is the delay constant of the dielectric waveguide. Preferably, the delay line is overwrapped around a mandrel.
Claims14
A delay line comprising a length L of a dielectric waveguide for the transmission of electromagnetic waves, said dielectric waveguide having:
- (a) a core of polytetrafluoroethylene (PTFE);
- (b) one or more layers of polytetrafluoroethylene (PTFE) overwrapped around said core, wherein
- T=KL/c,
- in which T is the total time delay, c is the velocity of light in free space and K is the delay constant for said dielectric waveguide;
- (c) said one or more layers of polytetrafluoroethylene (PTFE) having an electromagnetic shielding layer thereover;
- and
- (d) said shielding layer being further overwrapped with a tape of carbon-filled PTFE.
Dependencies are inferred from the claim text.