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5083128 |
Low observability aperture design for expendable countermeasures devices
A system for installing a plastisol or similar compound into the interior ace of a spent squib-activated countermeasures cartridge. When the squib ignites and expels the countermeasures payload,...
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5003311 |
Fiber composite with layers matched to peak radar wave attenuation
The fiber composite for bearing structures for absorption of electromagnetic waves consists in its structure of at least three layers (2, 3, 4, 5, 6, 7, 8, 9) to be different in their...
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4989006 |
Microwave absorption system
Microwave absorption in a varying magnetic field is investigated near electron cyclotron resonance with a network analyzer which is capable of swept frequency measurements, and of measuring...
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4960633 |
Microwave-absorptive composite
A microwave absorptive composite suitable for use in ships, aircrafts and the like comprises an outermost layer of a thermosetting resin-impregnated, fibrous sheet; an intermediate layer of a...
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4728554 |
Fiber structure and method for obtaining tuned response to high frequency electromagnetic radiation
The present invention relates to fiber structures and methods for obtaining tuned response to high frequency electromagnetic radiation, particularly at microwave frequencies. In one embodiment, a...
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4725490 |
High magnetic permeability composites containing fibers with ferrite fill
High magnetic permeability composites are obtained by incorporating ferrite fibers in the composites. The ferrite fibers consist of a polymer and particulate ferrite fill at a concentration above...
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4716417 |
Aircraft skin antenna
A holographic aircraft antenna and method of fabricating the antenna are disclosed herein. The antenna includes a thin layer of dielectric strips of material contoured to and mounted on the...
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4700190 |
Missile decoy radar cross section enhancer
A decoy missile having the shape of a reentry vehicle and containing a pair of conically shaped dipole jacks in tandem, the jacks are shaped and spaced to provide a desired reflective cross section...
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4581284 |
Fiber compound material
A fiber compound material of individual layers of superposed fiber plies such as glass fiber prepregs which are joined together by a matrix of a resin and a hardener and act as a load carrying...
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4148032 |
Method and means for defocusing engine cavity reflected energy
Radar wave energy entering aircraft engine cavities is substantially disped by providing within such cavities surfaces having perturbations or dipoles which interact with the electromagnetic energy...
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4084161 |
Heat resistant radar absorber
A foamed ceramic slab is bonded to a three-layer polyimide RAM substrate to roduce a radar absorber capable of at least 10db absorptivity of the range 3 to at least 10 GHZ and of withstanding very...
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4044358 |
Self erectable structure
An interference type radar attenuator is described formed of a plurality of thin sheets having selected admittance values. The sheets are spaced apart by thin plastic spacer members having a shape...
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4030098 |
Method and means for reducing reflections of electromagnetic waves
1. A method for reducing the reflections of electromagnetic wave energy f material surfaces comprising applying to said material surface a radioactive substance for producing a cloud of electrons...
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4019699 |
Aircraft of low observability
An aircraft which has a very low observability visually and to radar, thel and acoustic detecting devices. The aircraft is designed to have as few edges and surfaces as possible, such as a delta...
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3997899 |
Low radar cross-section re-entry vehicle
1. A low radar cross-section re-entry vehicle comprising: a tubular metallic cannister enclosing all instrumentation and payload for said vehicle, said cannister having a diameter of approximately...
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3838425 |
DESIGN FOR REDUCING RADAR CROSS SECTION OF ENGINE INLETS
A radar-absorbing shield for aircraft engines of the type having inlet caies comprising a geometrically shaped piece of radar-absorbing material which is movably attached to the fuselage of the...
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3773684 |
DIPOLAR ELECTRO-OPTIC COMPOSITIONS AND METHOD OF PREPARATION
Methods and apparatus incorporating suspensions of assymetric minute dipolar particles for the control of electromagnetic radiation. The physical electrical and optical properties of the dipolar...
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3713157 |
ENERGY ABSORPTION BY A RADIOISOTOPE PRODUCED PLASMA
This invention relates to an arrangement for producing an ionized plasma adjacent a surface and in particular it relates to providing a body with a coating capable of injecting kinetic energy into...
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3599210 |
RADAR ABSORPTIVE COATING
A radar absorptive coating for immunizing conductive surfaces to radar detion comprising conductive fibers cut to a length of one-half wavelength of the anticipated radar frequency and insulated...
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3509568 |
INLET ATTENUATOR ASSEMBLY
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3487410 |
SCREENING FOR ENGINES
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3233238 |
Radar camouflage arrangement
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3127608 |
Object camouflage method and apparatus
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2918671 |
Identifying reflector with reflection dissymmetry
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3555550 |
Title is not available
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