em design specializes in the design and fabrication of rf and microwave components, systems and sub-systems. our designs have provided microwave devices for the medical, aerospace, defense, and scientific communities. these solutions include antennas, antenna polarizers, circulators, waveguide loads, coaxial loads, mircowave pulse compressors, waveguide windows, waveguide seals, waveguide shorts, waveguide couplers and microwave heating.