USA As Represented by Secretary of the Navy

Richard C Adams

Carol A Becker

Robert S Abramo

Nghia Tran

Thinh Q Ho

Stephen M Hart

Barry R Hunt

David Carlos Dawson

Jovan E Lebaric

Hoa V Phan

Howard E Rast

Michael Bruch

Robert J O'Neil

Todd R Emo

Candace Conwell

Daryl Von Mueller

A system for controlling a plurality of vehicles can include at least one communications bus and a plurality of RFID detection tags that can be fixed to the communications bus equidistant from each other to define a plurality of RFID regions. Each vehicle within an RFID region can further include an RFID reader for receiving information from, and transmitting information to, the RFID tags. As the vehicle enters the RFID region for a particular RFID tag, the position of the vehicle (within the RFID region) can be communicated to the communications bus. A traffic control unit can be connected to the communications bus, and monitor can be in communication with a plurality of remotely controlled traffic control assets, such as stop signs, yield signs, traffic cones. After receiving position information on the vehicle, the monitor can selectively activate the traffic devices remotely to control vehicle traffic flow.

Remotely controlled vehicle control system

A prime mover uses detonation chambers to provide rotary power through a center hub. The center hub has a center shaft able to rotate and mounted to the center hub, and rotating arms are mounted to the center shaft. A detonation chamber is mounted to each rotating arm at a distance from the center hub which establishes a force moment about the center hub. Fuel passages connect an external fuel source, such as hydrogen and oxygen, with the detonation chambers to deliver fuel to the detonation chambers. Fuel delivered to the detonation chambers is ignited to establish a reaction force which is transferred through the rotating arms and the center hub. The rotating force is used to drive a generator.

Lightweight electric generator using hydrogen as a fuel

A pollution-free propulsion engine includes a rotating arm, a hollow axle defining a fuel delivery chamber, and hydrogen and oxygen sources. The rotating arm is formed with a detonation chamber, an opening and two tubular ducts therebetween. The axle is inserted into the opening. A pair of holes is formed in the axle to establish paths of fluid communication from the fuel delivery chamber through the ducts and into the detonation chamber as the rotating arm turns. The hydrogen source comprises a thin palladium binding layer deposited onto an aluminum sheet. Hydrogen molecules that are trapped in the binding layer are released, and the hydrogen is fed into the delivery chamber, through one duct and into the detonation chamber. At the same time, oxygen is delivered into the detonation chamber through the other duct, and the oxygen-hydrogen combination is detonated to release energy, which is converted into mechanical energy.

Engine using hydrogen as a fuel

A hydrogen storage and recovery system includes a substrate having embedded hydrogen molecules and a grid of cells. Each cell includes an electron source for directing electrons onto the substrate, two orthogonal magnetic or electric fields that are oriented so that the electrons pass through both magnetic fields prior to striking the substrate, and an ion guide. A voltage source establishes a potential for the electrons that is equal to the ionization potential of the hydrogen molecules, so that hydrogen molecules are ionized when the electrons impinge on the substrate. The magnetic fields can be manipulated to deflect, or change, the direction of said electrons passing through the fields, so that electrons strike the substrate at different locations, which allows for more recovery of the embedded hydrogen molecules from the substrate. The ion guide uses an applied electric field to draw hydrogen ions that have been ionized for subsequent storage.

Hydrogen fuel storage and recovery system

Pollution free engine using hydrogen as a fuel

A wearable patch antenna comprises a dielectric layer including water; a ground plane adjacent one side of the dielectric layer; a conductive patch element placed adjacent another side of the dielectric layer spaced from the ground plane by the dielectric layer; and a feed electrically connected to the conductive patch element.

Wearable small-sized patch antenna for use with a satellite

A method and apparatus for communicating simultaneously at the same frequencies includes two or more conductor-backed, spiral antennas that have been shown to exhibit linear polarization. To permit simultaneous transmission on the same frequencies, two of the linearly polarize, conductor-backed spiral antennas can be spaced vertically and be oriented so that the feed points of one antenna are orthogonal to the feed points of the second antenna. Since the specifically designed spiral antennas will be both transmitting or both receiving at orthogonally arranged polarizations, the antennas will not interfere with each other, even though communication is upon substantially the same frequencies.

Method and apparatus for simultaneous transmission of same frequencies

A man-portable wearable antenna system to be worn by a wearer. The wearable antenna system comprises a helmet antenna, a vest antenna worn around the torso, a body antenna worn along the entire body, and a means for routing signals between one of the antennas and a communication device.

Integrated man-portable wearable antenna system

A wearable directional antenna. The system includes a clothing, a plurality of EM energy reflectors and a plurality of antenna elements. The clothing includes a non-conductive material. The plurality of EM energy reflectors is operatively coupled to the clothing and is capable of reflecting EM energy. The plurality of antenna elements is operatively coupled to the plurality of EM energy reflectors and is capable of receiving and transmitting EM energy in a specified direction.

Wearable directional antenna

A multi-antenna garment comprising a first and second antenna incorporated into an electrically nonconductive garment, with tubular composites to improve gain and mitigate radiation hazard. The first antenna includes first and second RF elements attached to a first garment so that a gap exists between them, where the RF elements each form a band when the garment is worn by a wearer. The second antenna includes third, fourth, fifth, and sixth RF elements attached to a second garment worn over the first garment. RF feeds are electrically connected to the first, third, and fifth RF elements. Ground feeds are electrically connected to the second, fourth, and sixth RF elements. Insulating material disposed over gaps between the first and second, the third and fourth, and the fifth and sixth RF elements and in pockets in the regions of the RF feeds limits the wearer's exposure to electromagnetic field to acceptable levels.

Ultra-broadband antenna incorporated into a garment

An ultra-broadband antenna incorporated into an electrically nonconductive garment, with radiation absorber material to mitigate radiation hazard. The antenna includes first and second RF elements attached to the garment so that a gap exists between them, where the RF elements each form a band when the garment is worn by a wearer. RF and ground feeds are electrically connected to the first and second RF elements, respectively. A shorting strap electrically connected between the first and second RF elements on the anterior side of the garment generally opposite the feeds helps match the antenna impedance to an external signal source. Radiation absorber material disposed over the gap between the first and second RF elements and in a pocket in the region of the RF feed limits the wearer's exposure to electromagnetic field to acceptable levels.

Ultra-broadband antenna incorporated into a garment with radiation absorber material to mitigate radiation hazard

An antenna includes a liner shaped to fit over a helmet; a first RF element attached to the liner; a second RF element attached to the liner so that the first and second RF elements are separated by a gap; an RF feed electrically connected to the first RF element for providing RF energy to the first RF element; a ground feed electrically connected to the second RF element; a first shorting strap that is electrically connected to the first and second elements opposite from the RF feed; and a second shorting strap electrically connected to the first and second RF elements between the first shorting strap and the RF feed. The shorting straps are used to generally match the impedance of the antenna to an electrical device such as a transmitter, receiver, or transceiver. A matching circuit may be connected in series between the first RF element and the RF feed to further refine matching the antenna impedance to the electrical device. In another embodiment of the invention, the RF elements may be mounted directly to the helmet, in applications where the helmet is made of a dielectric material.

Ultra broadband antenna having asymmetrical shorting straps

An ultra-broadband antenna is incorporated into an electrically nonconductive garment. The antenna includes first and second RF elements attached to the garment so that a gap exists between them, where the RF elements each form a band when the garment is worn by a wearer. RF and ground feeds are electrically connected to the first and second RF elements, respectively. A shorting strap electrically connected between the first and second RF elements on the anterior side of the garment generally opposite the feeds helps match the antenna impedance to an external signal source. A gap between the RF elements provides a voltage difference between the RF elements when the antenna is energized. Electrically conductive straps are electrically connected between the anterior and dorsal regions of the first RF element that extend over the shoulder region of the garment. An impedance matching circuit electrically connected between the first RF element and the RF feed is used to match the impedance of the antenna with an external device for a particular operating bandwidth. The garment may be a vest or pullover garment suitable for being worn on a human torso.

A method for communicating with a decreased probability of detection by an unintended listening party uses frequency hopping and two substantially identical linearly polarized antennas whose polarization vector is synchronized to frequency. Synchronization of polarization with frequency is accomplished through specifically designed conductor-backed spiral antennas. For these conductor-backed spiral antennas, a change in frequency is synchronized to a change in the polarization vector of the communication signal. Since the receiving station will be programmed to alter its reception frequencies in accordance with those being transmitted, the second spiral antenna will automatically change its polarization upon making these frequency changes. A rapid change of polarization increases the difficulty in detecting and intercepting the communication by parties for whom the message was not intended.

Method for secure communications using spiral antennas

A wideband antenna system comprises a stack of m antennas, where m is a positive integer, and m&gE;2. Each antenna includes: a) an electrically insulating substrate; b) opposed first and second radio frequency elements mounted to the substrate; c) a ground feed electrically connected to the first radio frequency element; d) an excitation feed electrically connected to the second radio frequency element; and e) a ground plane mounted to the substrate of the m antenna. The radio frequency elements of each antenna collectively have a unique total area and are mounted to the electrically insulating substrate. The radio frequency elements of the i antenna provide a ground plane for the k antenna, where i and k are positive integers, 1&lE;k&lE;(i&minus;1), and 2&lE;i&lE;m. The total area of the first and second radio frequency elements of the i antenna is greater than the total area of the first and second radio frequency elements of the k antenna.

Growing community of inventors

San Diego, CA, United States of America

Richard C Adams