Fractal Antenna Systems, Inc.

Other

National Fertility Institute

Boston University

Fractual Antenna Systems, Inc.

Nathan Cohen

Philip Salkind

Alexander J Shelman-Cohen

Ryan Thistle

Michael Chin

Daniel Earle

Obinna Okoro

Justin Mitchell

A J Shelman-Cohen

Phillip Salkind

David Moschella

Fredrick B Brown

Guido Sandri

Edwin Van De Wetering

Ralph Isaac Hirsch

Wireless sensor devices are described which harvest energy and provide an antenna or antennas for wireless communication on a relatively small form factor, preferably one that is co-extensive with a largest component of the device, e.g., an antenna layer or sensor layer. The devices are able to sense and/or control certain specific parameters of a system; store energy, e.g., in a supercapacitor system or battery system; transmit that as information/signals via a wireless link, e.g., RF or optical link; receive information from other devices and relay that information. Such devices accordingly may be self-powered and wireless devices, and not dependent on a separate device or form factor to provide a power source. Such devices can be entirely autonomous or substantially so, can be mobile or fixed, and may require little servicing over a period of time. The devices can be used as sensor nodes in a wireless mesh network.

Conformal aperture engine sensors and mesh network

An aspect of the present disclosure is directed to and provides radar-reflecting systems and apparatus that employ metasurfaces to produce enhanced radar cross sections that are greater than those produced by the geometry of the surfaces alone. Another aspect of the present disclosure is directed to and provides heat-ducting systems and apparatus that include metasurfaces. A further aspect of the present disclosure is directed to and provides cards with metasurfaces. Exemplary embodiments utilize fractal plasmonic surfaces for a metasurface.

Road identification system using enhanced cross-section targets

This invention entails the use of fractal shapes as cores for electromagnets, and a concurrent shape of a fractal for the windings which surround it. The novelty of this invention lies not only with the shaping, but the advantage of such shaping, which includes producing a smaller form factor electromagnet for the same desired magnetic field strength, when compared to a conventional electromagnet. It will be appreciated that a range of devices including electromagnets, based on such fractal shaping, are additionally novel and include but are not limited to solenoid switches, relays, and other devices in which the fractal electromagnets are used to make a change in state of some device.

Fractal switching systems and related electromechanical devices

Systems, apparatus, and methods are described that provide for detection of a metamaterial surface (metasurface) on a device or object. Multitone EM radiation is transmitted to the object having the metasurface. Two or more heterodyned tones are backscattered from the object and detected.

Method and apparatus for detection of a metasurface

Novel directional antennas are disclosed which utilize plas-monic surfaces (PS) that include or present an array of closely-spaced parasitic antennas, which may be referred to herein as 'parasitic arrays' or fractal plasmonic arrays (FPAs). These plasmonic surfaces represent improved parasitic directional antennas relative to prior techniques and apparatus. Substrates can be used which are transparent and/or translucent.

Parasitic antenna arrays incorporating fractal metamaterials

Metamaterials are described which can be employed with satellites, e.g., small sats, to increase the observability of such satellites. Any type of suitable metamaterial can be used. In exemplary embodiments fractal-based patterns or structures may be used.

Satellite orbital monitoring and detection system using fractal superscatterer satellite reflectors (FSR)

Techniques are disclosed, including methods and systems/apparatus, that can be used to treat cancerous tissue by exploiting the fact that such tissues have vascular branching with fractal descriptions and fractal dimensions, which are different from those found in normal soft tissue vascular branching. Such fractal branching of diseased tissue can produce resonances, or preferential energy absorption, when irradiated by either ultrasound and/or radio frequencies of EM energy; these resonances are not shared by the vascularization in normal soft tissue. Accordingly, one or more specific arrangements of multiband radiation (e.g., RF and/or ultrasonic) used to irradiate such diseased tissue will cause heating and possibly localized necropsy of tumor blood vessels, with little or minimal damage to surrounding healthy tissue. Embodiments can utilize ablation devices in conjunction with RF and/or ultrasonic sources. Embodiments can further utilize chemotherapy (before, during, or after hyperthermic treatment) for enhancing cancer treatment.

Oncological amelioration by irradiation and/or ensonification of tumor vascularization

Systems according to the present disclosure provide one or more surfaces that function as power transferring surfaces for which at least a portion of the surface includes or is composed of 'fractal cells' placed sufficiently closed close together to one another so that a surface (plasmonic) wave causes near replication of current present in one fractal cell in an adjacent fractal cell. A fractal of such a fractal cell can be of any suitable fractal shape and may have two or more iterations. The fractal cells may lie on a flat or curved sheet or layer and be composed in layers for wide bandwidth or multibandwidth transmission.

Deflective electromagnetic shielding

Systems and techniques are described that provide for enhanced gain and radiation characteristics of antennas. The systems and techniques employ layers or cards of fractal plasmonic surfaces to provide gain to the antennas. The fractal plasmonic surfaces each include a close-packed arrangements of resonators having self-similar or fractal shapes, which may be referred to as 'fractal cells.' The cards can be held by a frame adapted to fit an antenna. The FPS cards can provide benefits for gain, field emission, directivity, increased bandwidth, power delivery, and/or heat management. One or more dielectric layers or cards may be used to enhance gain and/or directivity characteristics.

Enhanced gain antenna systems employing fractal metamaterials

Metamaterials are employed with satellites, e.g., small satellites, to increase the observability of such satellites. Any type of suitable metamaterial can be used. In exemplary embodiments fractal-based patterns or structures may be used. A super scatterer having a metasurface is employed for the satellite and enhances the radar reflection for a given area of the satellite. Such detection can be used for monitoring and/or controlling the orbits of satellite space craft.

Growing community of inventors

Belmont, MA, United States of America

Nathan Cohen