Massachusetts Institute of Technology

Lockheed Sanders, Inc.

Other

Andrew Rappe

Robert D Meade

Karl D Brommer

Henry Mullaney

John Dimitris Joannopoulos

John Joanopoulos

Low-loss dielectric resonant devices having lattice structures with

A filter utilizes a frequency selective, non-conductive, dielectric structure for filtering electromagnetic energy in the millimeter to far infrared frequency bands. The filter includes a non-conductive, high-dielectric, background material positioned to receive incident electromagnetic energy. A lattice structure comprised of a plurality of elongated elements formed of a non-conductive, high-dielectric material are disposed in a two-dimensional, periodic arrangement in the background material. The elements extend in parallel to one another through the background material for providing a range of frequencies over a band gap in which incident electromagnetic energy within the frequency range of the band gap is substantially prevented from propagating through the lattice structure. The dielectric structure can be adapted to operate as a band stop filter or a low pass filter.

Filter utilizing a frequency selective non-conductive dielectric

A dielectric resonator comprising a resonant defect structure disposed in a lattice structure formed of a plurality of multi-dimensional periodically arranged dielectric elements confines electromagnetic energy within a frequency band in the photonic band gap. The frequency band of the confined electromagnetic energy is tunable. The unique structure of the dielectric resonator leads to reduced power dissipation losses when used in microwave and millimeter wave components. Accordingly, the dielectric resonator

Low-loss dielectric resonator having a lattice structure with a resonant

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Emeryville, CA, United States of America

Andrew Rappe