Miniature Attenuator Pads

M.E.C.’s miniature attenuator pads feature ultra-flat frequency response and very low VSWR bundled into extremely short flange-size packages.  Typical attenuation flatness over the full waveguide band is ±0.2 dB (±0.3 dB max.), with typical VSWR of 1.10:1 (1.15:1 maximum).  These compact units are available in 1 dB steps from 1 to 10 dB and are ideal for inclusion in systems where length is critical.  These parts have aluminum housings, are chromate conversion finished per MIL-C-5541, Class 3, and painted with gray epoxy enamel on external, non-mating surfaces.

Variable Attenuators

M.E.C.’s 60V Series of waveguide variable attenuators are available in attenuation ranges of 0 – 40 dB.  Both  narrow and broad band versions are available.  Full band flatness is as low as ± 0.5 dB from 0 – 10 dB attenuation and ± 0.7 dB from 10 – 20 dB attenuation.  Full band flatness degrades at higher attenuation levels, however narrower bandwidths can hold ± 0.5 dB flatness up to 40 dB attenuation.

Calibrated vernier drives are available upon request.  A locking screw is standard on the drive mechanism.  These components may be converted from variable to a fixed version by simply switching the attenuator block.  Our high precision machining guarantees unit to unit consistency within ± 0.1 dB.