Skycross, Inc.

Other

Airgonomix, LLC

John Charles Farrar

Young-Min Jo

Frank M Caimi

Gregory A O'Neill, Jr

Murray Fugate

Kerry Lane Greer

Se-Hyun Oh

Jin Hee Yoon

Myung Sung Lee

Sang Ok Choi

Eun Seok Han

Joo Mun Lee

Paul Anthony Tornatta, Jr

Michael H Thursby

Mark Deems Nelson

Mark Thomas Montgomery

Li Chen, Iii

Ki-Chul Kim

Jason M Hendler

Brendan Fitzgerald

Young-Ki Kim

Robert F Keimer

David L Huie

Joon-Wan Lee

Allen N Williams

Donald A Innis

Matthew S Ikemeier

Sean J Fitzgerald

A damper for controlling fluid flow includes a main body, a stator and a rotor. The stator may be carried by the main body and include at least one blade having a predetermined shape. The rotor may be moveably connected to the stator and carried by the main body. The rotor may include at least one blade having a predetermined shape and may be moveable between an opened position and a closed position. The predetermined shape of the at least one stator blade and the at least one rotor blade may form a converging-diverging nozzle, and the stator and the rotor may be carried by the main body so that fluid flows through the main body substantially perpendicular thereto. The opened position may be defined as the at least one stator blade being aligned with the at least one rotor blade, and the closed position may be defined as the at least one stator blade being offset from the at least one rotor blade.

Damper to control fluid flow and associated methods

A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances.

Quadrifilar helical antenna

A radio frequency identification tag attached to an object and comprising an antenna and an integrated circuit for providing object information to a separate reader. The antenna further comprises a pair of meanderline transmission lines each terminated at a first end for conductive connection to the integrated circuit. A shorting bar connected between the pair of meanderline transmission lines at the first ends is operative to match an antenna impedance with an integrated circuit impedance.

Radio frequency identification tag

A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A disk-like impedance matching element disposed at a lower end of the antenna matches a source impedance to an antenna impedance. In certain embodiments a first crossbar connector on a substrate disposed at an upper end of the antenna electrically connects two helical filars to form a first filar pair and a second crossbar connector disposed on the substrate connects two filars to form a second filar pair.

Handset quadrifilar helical antenna mechanical structures

A radio frequency transmitting and receiving apparatus comprising a filter and an antenna, wherein the input reactance of the antenna is substantially equal in magnitude and opposite in sign to the output reactance of the filter. This reactance relationship permits the antenna and filter to be collocated and avoids transformation of the input and output impedances to the conventional 50 ohms such that the filter and antenna can be connected with a conventional 50 ohm transmission line.

Integrated front end antenna

An antenna comprising two monopole elements and a ground plane disposed on a dielectric substrate. The elements are spaced apart to provide spatial diversity and have a shape to provide operation in multiple frequency bands and/or over a wide bandwidth of frequencies.

Wideband printed monopole antenna

An antenna providing circular polarization for received and transmitted signals. The antenna comprises a vertical conductive surfaces oriented to form a closed structure and horizontal conductive surfaces forming a top face of the closed structure. Connection of selected vertical panels to a feed and ground, causes current flow in the vertical and horizontal surfaces that results in a circular polarized signal.

Compact, low profile, circular polarization cubic antenna

A planar antenna comprising a spiral conductive surface comprising an inner spiral segment and an outer spiral segment. A shorting leg for connection to a ground plane and a feed leg responsive to the antenna signal (in the transmit and the receive modes) extend downwardly from the plane of the spiral segments. Performance characteristics of the antenna are responsive to the configuration and spacing of the spiral segments and the distance between the antenna and the ground plane.

Dual band spiral-shaped antenna

Growing community of inventors

Indialantic, FL, United States of America

John Charles Farrar