Terry P Gibbs

US Patent:

47377470, Apr 12, 1988

Filed:

Jul 1, 1986

Appl. No.:

6/880987

Inventors:

James M. Henderson - Scottsdale AZ
Terry L. Gibbs - Tempe AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01P 100
H01P 126

US Classification:

333246

Abstract:

A resistive element is formed on a printed circuit board using only printed circuit board fabrication techniques. Two printed circuit board strata are laminated together into a multi-layer printed circuit board. A desired trace pattern is etched into a first layer of a first stratum that has first and second conductive metallic layers clad to opposing sides of a first dielectric substrate. A bi-metallic clad substrate having a resistive layer clad to a first side of a second dielectric substrate, a third conductive layer clad to the resistive layer, and a fourth conductive layer clad to a second side of the second dielectric substrate represents the second stratum. The third conductive layer is etched to leave only pads. The resistive layer is etched to form resistive elements of desired resistivity between the pads. When the two strata are laminated together, the pads couple to the trace pattern at desired locations.

US Patent:

46367551, Jan 13, 1987

Filed:

Jul 26, 1984

Appl. No.:

6/634855

Inventors:

Terry L. Gibbs - Tempe AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01P 512

US Classification:

333116

Abstract:

A microwave coupler which receives an input signal and converts it into two output signals is dislosed wherein the output signals exhibit the same phasing, the output signals are isolated, and a predetermined ratio exists between the power level of one output signal and the power level of the other output signal. An equal-split power divider transforms the input signal into intermediate signals which are then isolated and phase shifted. A quadrature hybrid combines the phase shifted signals and produces the output signals.