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Texscan Corporation

William P Dawson

Bruce G Malcolm

A newly found seedling of a fruit bearing citrus plant characterized by the large size, bright distinctive color, pleasant taste, ease of peeling and sectioning, and flattened shape of the fruit.

Citrus hybrid Templeo

An attenuator element, for high frequency electrical signals, at a characteristic impedance such as 50 ohms. One or more distributed resistance regions are interposed between an input and an output and are coupled to a ground pad. The impedance of the distributed resistance portion or portions is higher than the desired 50 ohms and additional input and output resistances, nondistributed, are interposed between the input pad and the ground pad and between the output pad and the ground pad to bring the effective impedance at the input and output to the desired characteristic impedance level. Utilizing the nondistributed resistances at input and output increases the power capability of the attenuator element and also results in a larger size for the distributed resistance region or regions, providing less critical tolerances for producing the distributed resistance regions.

Attenuator element

A rotary step attenuator having a housing and a rotor rotatably mounted in the housing. An array of attenuator elements is mounted on the rotor, appearing in an end view as chords of a circle whose center is at the axis of rotation of the rotor. Each attenuator element has a first surface bearing an electrically conductive pad facing the axis of rotation of the rotor, and additionally there is a blade contact member having a first surface facing away from the axis of rotation mounted in a fixed position relative to the housing and operable to touch a selected one of the conductive pads as the rotor is rotated within the housing. There are no spring biased signal contacts other than the blade contact member itself for effecting electrical coupling between the attenuator elements and the electrical connections to the rotary step attenuator.

Growing community of inventors

Indianapolis, IN, United States of America

William P Dawson