Filter utilizing a frequency selective non-conductive dielectric

Details Filter utilizing a frequency selective non-conductive dielectric Filter utilizing a frequency selective non-conductive dielectric

1992-07-27

1995-02-14

Lee, Benny T.

Communications: radio wave antennas

Antennas

Antenna components

343787, 333202, 333235, H01Q 1500, H01P 1201

Patent

active

053899431

ABSTRACT:
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.

REFERENCES:
patent: 3465361 (1969-02-01), Lode
patent: 3698001 (1972-10-01), Koyama et al.
patent: 3789404 (1974-01-01), Munk
patent: 3924239 (1975-12-01), Fletcher et al.
patent: 4125841 (1978-11-01), Munk
patent: 5187461 (1993-02-01), Brommer et al.
Kelleher, K. S. and Goatley G.; "Dielectric Lens for Microwaves"; Electronics; Aug. 1955; pp. 142-145.
Yablonovitch, Eli, "Inhibited Spontaneoud Emission in Solid-State Physics and Electronics", Physical Review Letters, 58:20:2059-2062, (May 1987).
Mongia, R. K., "Resonant Frequency of Cylindrical Dielectric Resonator Placed in an MIC Environment", IEEE Transaction on Microwave Theory and Techniques, 38:6:802-804, (Jun. 1990).
Kobayashi, Yoshio, et al., "Influence of Conductor Shields on the Q-Factors Of A TE.sub.O Dielectric Resonator", MIT-S Digest, pp. 281-284, (1985).
Yablonovitch, E. et al., "Photonic Band Structure: The Face-Centered-Cubic Gas Physical Review Letters", 63:18: 1950-1953, (Oct. 1989).
Leung, K. M. et al., "Full Vector Wave Calculation of Photonic Band Structure in Face-Centered-Cubic Dielectric Media"Physical Review Letters, 65:21:2646.2649, (Nov. 1990).
Ho, K. M. et al., "Existence of a Photonic Gap in Periodic Dielectric Structures Physical Review Letters", 65:25:3152-3155, (Dec. 1990).
Zhang, Ze et al., "Electromagnetic Wave Propagation in Periodic Structures: Bloch Wave Solution of Maxwell's Equations", Physical Review Letters, 65:21:2650-2653, (Nov. 1990).
Ho, K. M. et al., "Comment on `Theory of Photon Bands in Three-Dimensional Periodic Dielectric Structures", Physical Review Letters, 66:3:393 (Jan. 1991).
Satpathy, S., et al., "Comment on `Theory of Photon Bands in Three-Dimensional Periodic Dielectric Structures`", Physical Review Letters, 66:3:394, (21 Jan. 1991).
Navarro, A. et al., "Study of TE.sub.0 and TM.sub.0 Modes in Dielectric Resonators by a Finite Difference Time-Domain Method Coupled with the Discrete Fourier Transform", IEEE Transactions on Microwave Theory and Tehnique 39:1:14-17, (Jan. 1991).
Weisshaar, Andreas, et al., "Perturbation Analysis and Modeling of Curved Microstrip Bends", IEEE Transactions on Microwave Theory and Techniques, 38:10:1449-1454, (Oct. 1980).
Kato, Haruhiko et al., "A 30 GHz MMIC Receiver for Satellite Transponders", IEEE Transactions on Microwave Theory and Techniques, 38:7:896-902, (Jul. 1990).
Yablonovitch, E. et al., Abstracts: "Photonic Band Structure: The Face-Center Cubic Case Employing Non-Spherical Atoms", 1-16, (Unpublished).

Affiliated with

Also associated with

Rating

Filter utilizing a frequency selective non-conductive dielectric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter utilizing a frequency selective non-conductive dielectric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter utilizing a frequency selective non-conductive dielectric will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-290551