Spectrum Control, Inc.

Mark W Ingalls

John Williams

James R Callaway

An antenna is disclosed. The antenna may have a slotted conductive reference sheet, a first dielectric material and a second dielectric material. The first dielectric material may reside on a first side of the reference sheet, and the second dielectric material may reside on the second side of the reference sheet. The first dielectric material has a first K-value, and the second dielectric material has a second K-value. The second K-value is larger than the first K-value.

Antenna with high K backing material

A directional coupler having (a) a first coupled microstrip section having a first terminus (T) and a second terminus (T), (b) a second coupled microstrip section having a first terminus at Tand a second terminus (T), and (c) a first phase-velocity-compensating capacitor connected across the conductors of the microstrip sections at Tis disclosed. The coupler also may include a second phase-velocity-compensating capacitor connected at T, and a third phase-velocity compensating capacitor connected across the conductors at T

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Spring, TX, United States of America

Mark W Ingalls