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Adjustable Loads

These Adjustable Loads consist of a flanged section of straight waveguide containing a geometrically optimized absorbing element driven by a precision micrometer. There is more than one half wavelength of travel at the lowest frequency of each waveguide size. The micrometers used on these loads utilize a special dampening feature making the locking type of micrometer unnecessary. Our Adjustable Loads are available in sizes WR3 to WR42. WR3 to WR12 are electroformed, WR15 and above are made from extruded waveguide.

Technical Specs
WR Frequency (GHz) Max VSWR A DIM (in) B DIM (in) Length (in) Travel Length (in) Flange
28 26.5 - 40 1.02:1 0.28 0.14 4.225 0.5 S 0.750

Ordering Example: AL28S is an adjustable load in WR28 with Square flange. AL22R is an adjustable load in WR22 with Round flange.