Texas Instruments Corporation

Charles M Rhoads

Oren B Kesler

Gary A Frazier

Daniel Joseph Ryan

Richard G Hoffman, Ii

Tsen-Hwang Lin

Hua Q Tserng

Charles L Goldsmith

David J Seymour

Larry Charles Witkowski

Lily Y Pang

Bill R Norvell

Billy Powers, Jr

Bradley M Kanack

Robert C Voges

Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. Other methods and devices are disclosed.

Controllable optical periodic surface filter

Controllable optical periodic surface filters

Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. The surface filter is used as a switchable filter in a cavity for a Q-switch.

Controllable optical periodic surface filters as a Q-switch in a

Controllable surface filter

Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. The surface filter comprising and electronically tunable electro-optic material to alter the resonant frequency of the element.

Elecronically tunable optical periodic surface filters with an alterable

Micromechanical microwave switches with both ohmic and capacitive coupling of rf lines and integration in multiple throw switches useful in microwave arrays.

Micromechanical microwave switching

A GaAs monolithic waveguide switch and system for low power consumption and high frequency switching wherein a single GaAs chip is flip-chip mounted onto a waveguide slot and inserted between interconnecting waveguides to provide single pole single throw switching. The GaAs chip includes an array of MESFETs along with connecting electrodes configured to provide low loss in the biased state and high loss in the unbiased state. The use of a single GaAs monolithic chip provides improved RF performance and manufacturability over discrete devices and provides lower power consumption as compared with silicon PIN diode waveguide switches.

GaAs monolithic waveguide switch

Growing community of inventors

Plano, TX, United States of America

Charles M Rhoads