Profile: Microwave Applications Group provides microwave ferrite components and subsystems to government, aerospace & commercial markets. Our analog rotary-field ferrite phase shifters are designed to provide an unlimited phase shift with modulo-360 degree phase control characteristics that are independent of frequency, temperature, power level, and ferrite material parameters. Our dual-mode phase shifter is the only reciprocal latching, ferrite phase shifter that has been made in large quantity. This phase shifter uses a quadrantally symmetric ferrite rod which is metallized to form a ferrite-filled waveguide. The cross section must have quadrantal symmetry so that circularly polarized energy will propagate through it without change of field distribution. The name dual-mode comes from the fact that the structure must support two orthogonal, linearly polarized modes for proper operation. We offer microwave switching devices. These switches use the principle of faraday rotation to achieve a combination of high isolation, wide temperature range, and reciprocal operation at moderately high power levels.