Northrop Grumman Systems Corporation

Other

Imants Eglitis

Henry Ping Chang

Andrew Lee Roberts

Steven Szu-Cherng Kuo

James David Ingram

Christopher G Papajohn

A method for making a feed structure for an antenna may include providing a polarizer body having a polarizer sidewall extending longitudinally between spaced apart ends. A portion of the polarizer sidewall is deformed to provide at least one polarizing structure that extends radially inwardly along an interior of the polarizer sidewall relative to adjacent portions of the polarizer sidewall. The method thus can be utilized to produce an antenna structure.

Method for making an antenna structure

A polarizer for an antenna and antenna structures are disclosed. According to one aspect a polarizer includes a generally cylindrical sidewall portion extending between spaced apart end portions. At least one polarizing structure extends substantially continuously along an interior of the sidewall portion and extends radially inwardly relative to the sidewall portion according to a first radius in a longitudinal direction and a second radius in a transverse direction. The polarizer can be implemented as part of an antenna structure, which further can be integrated with a transition stage and/or a horn.

Feed structure and antenna structures incorporating such feed structures

An angularly adjustable snowboard binding mount and method of adjusting such which utilizes a position altering plate which is fixedly mounted onto a snowboard. A baseplate is mounted on the position altering plate and is pivotally movable from a locked position to an unlocked position with the unlocked position being substantially ninety degrees from the locked position. The locked position locates the longitudinal axis of the boot binding substantially at ninety degrees relative to the longitudinal center axis of the snowboard. The unlocked position locates the longitudinal axis of the boot binding substantially in alignment with the longitudinal center axis of the snowboard. In the second embodiment of this invention, the boot binding is mounted on an adjustment plate which is mounted in conjunction with the baseplate. The position of the adjustment plate can be adjusted relative to the baseplate so as to accommodate to different initial mounting positions of the boot binding relative to the snowboard according to the desires of different riders.

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Torrance, CA, United States of America

Imants Eglitis