Harris Corporation

Dara Ruggiero

Dennis Lee Tebbe

Terry Provo

Thomas P Smyth

Holly Todd

Method for fabricating a textured dielectric substrate () for an RF circuit. The method can include the step () of selecting a plurality of dielectric substrate materials, each having a distinct combination or set of electrical properties that is different from the combination of electrical properties of every other one of dielectric substrate materials. Selecting a textured substrate patter () which is comprised of at least two types of distinct areas respectively having the distinct sets of electrical properties, with each distinct area dimensioned much smaller than a wavelength at a frequency of interest. Cutting the dielectric substrate materials () into a size and shape consistent with the distinct areas of the selected pattern so as to form a plurality of dielectric pieces (). Arranging the dielectric pieces on a base plate () in accordance with the selected pattern to form the textured dielectric substrate.

Method of fabricating an RF substrate with selected electrical properties

Method for fabricating a textured dielectric substrate () for an RF circuit. The method can include the step () of selecting a plurality of dielectric substrate materials, each having a distinct combination or set of electrical properties that is different from the combination of electrical properties of every other one of dielectric substrate materials. Selecting a textured substrate pattern () which is comprised of at least two types of distinct areas respectively having the distinct sets of electrical properties, with each distinct area dimensioned much smaller than a wavelength at a frequency of interest. Cutting the dielectric substrate materials () into a size and shape consistent with the distinct areas of the selected pattern so as to form a plurality of dielectric pieces (). Arranging the dielectric pieces on a base plate () in accordance with the selected pattern to form the textured dielectric substrate.

The method includes selecting two or more types of ceramic materials ( ), each having a distinct set of electrical properties different from the other of the types of ceramic materials. A substrate pattern can also be selected. The substrate pattern can comprise at least two types of distinct substrate areas having the distinct sets of electrical properties of the ceramic materials. Each distinct area can be selected so as to have dimensions much smaller than a wavelength at a frequency of interest. The ceramic materials ( ) can thereafter be fired and then cut into a size and shape consistent with the distinct areas to form dielectric pieces ( ). The process continues by selectively arranging the dielectric pieces on a base plate ( ) in accordance with the pattern to form the textured ceramic dielectric substrate. The completed textured substrate ( ) will have at least one effective electrical property at a frequency of interest that is different from each of said distinct sets of electrical properties of the ceramic materials.

Growing community of inventors

Melbourne, FL, United States of America

Dara Ruggiero