These Phase Shifters are used for varying the electrical length of transmission lines. Each unit consists of a section of waveguide with a narrow slot milled in the broad wall. Through this slot, a thin rexolite vane is introduced into the waveguide by a precision micrometer. The drive mechanism is arranged to provide more than 180° of phase shift over .250 to .500 inch travel on the micrometer dial, depending on the waveguide size. Featuring no backlash, these units will produce accurate and reproducible settings. All units are uncalibrated.
CMI Offers these parts made from coin silver waveguide as a custom product. Send email to email@example.com for quote.
This product is now available with a metric micrometer drive assembly.
Ordering Example: VP28S is a Variable Phase shifter in WR28 with Square flanges.