Raytheon Company

Patrick J Kocurek

Brandon William Pillans

Daniel B Schlieter

Christopher A Loehrlein

Kenneth William Brown

Robert S Isom

Andrew Kent Brown

Sankerlingam Rajendran

Michael A Moore

Darin M Gritters

Thomas A Hanft

Richard G Pierce

Daniel Schlieter

Christopher Loehriein

A transmission line impedance transformer including at least two different dielectric media having different dielectric properties, each of the dielectric media being configured to taper in thickness along the length of the impedance transformer in an inverse relationship with respect to each other so as to form a combined dielectric medium having an effective dielectric property that is graded along the transmission path. The two or more dielectric media may be disposed between two conductors to provide an impedance transformer in which a characteristic impedance of the transmission line varies along its length in response to the gradation of the effective dielectric property of the combined dielectric medium.

Method of additively manufacturing an impedance transformer

A method of lamination of dielectric circuit materials is provided. The method includes preparing first and second circuit layers of dielectric materials, stacking the first and second circuit layers with circuit trace elements interposed between the first and second circuit layers and ultrasonically welding the second circuit layer onto the first circuit layer around the circuit trace elements.

Method of lamination of dielectric circuit materials using ultrasonic means

Impedance transformer

An electronic stripline circuit includes a flexible dielectric film having a three-dimensional coiled shape that defines a spiraled inner core. At least one electrically conductive signal trace is formed on a first surface of the flexible dielectric film. The signal trace extends along a signal path to define a trace length configured to control a time delay of a coiled time delay unit.

Time delay unit comprising a spirally wound meandering line pattern

A transmission line is provided and includes a center conductor suspended above a ground plane and comprising a line of printed, self-supporting metallic material, ground walls disposed on either side of the center conductor and comprising stacked lines of printed metallic material and a lid suspended above the center conductor between the ground walls and comprising arrayed lines of the printed, self-supporting metallic material.

Transmission line formed of printed self-supporting metallic material

Embodiments of the invention are directed toward a novel printed antenna that provides a low-loss transition into waveguide. The antenna is integrated with a heat spreader and the interconnection between the antenna and the output device (such as a power amplifier) is a simple conductive connection, such as (but not limited to), a wirebond. Integrating the antenna with the heat spreader in accordance with the concepts, circuits, and techniques described herein drastically shortens the distance from the output device to the waveguide, thus reducing losses and increasing bandwidth. The transition and technique described herein may be easily scaled for both higher and lower frequencies. Embodiments of the present apparatus also eliminate the complexity of the prior art circuit boards and transitions and enable the use of a wider range of substrates while greatly simplifying assembly.

High frequency, high bandwidth, low loss microstrip to waveguide transition

Growing community of inventors

Allen, TX, United States of America

Patrick J Kocurek