Spherical dielectric structures for storing electromagnetic energy
OwnerTimothy G. WATERMAN, Patrick J. KNOWLES +1inventors
InventorsTimothy G. WATERMAN, Patrick J. KNOWLES, Urs Werner BATZEL
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Abstract
In one embodiment, an electromagnetic (EM) energy containment device includes a spherically symmetric resonant dielectric structure having a radial dimension R0 defined as R0=3/π·λ0/2 and having first and second regions with different indices of refraction. The spherically symmetric resonant dielectric structure is configured to receive and to contain, for a selectable duration of time, an electromagnetic wave of a wavelength λ0, and can find applications in delay circuits for beam steering for example.
Claims23
An electromagnetic (EM) energy containment device comprising:
- a spherically symmetric resonant dielectric structure having a radial dimension R0 defined as
- R0=3/π·λ0/2
- and having first and second regions with different indices of refraction,
- wherein the resonant dielectric structure is configured to receive and to contain, for a selectable duration of time, an electromagnetic wave of a wavelength λ0.
A parallel plate delay device for containing EM energy of wavelength λ0 for a selectable duration, comprising:
- first and second ground planes;
- and
- a dielectric core material disposed between the first and second ground planes, the dielectric core material having an annular shape with an inner diameter
- R
- min
- =
- 3
-
- λ
- 0
- 8
-
- π
- and an outer diameter
- R
- min
- =
- 3
-
- λ
- 0
- 4
-
- π
- ,
- and having a tapered dielectric constant.
Dependencies are inferred from the claim text.