Variable Phase Shifters

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 0.300” travel on the micrometer dial, depending on the waveguide size. Featuring no backlash, these units will produce accurate and reproducible settings. All units are un-calibrated. Variable Phase Shifters are available in sizes WR3 to WR42.

This product is now available with a metric micrometer drive assembly.

Ordering Example:

VP10R is a Variable Phase shifter in WR10 with a round flange hole pattern.

Quantity Part Name WR Frequency (GHz) WG A DIM(in) WG B DIM(in) Length-A(in) Height-B(in) Flange
VP42S4218 - 26.50.420.17**S 0.875
VP28S2826.5 - 400.280.14**S 0.750
VP22R2233 - 500.2240.1121.52.185R 1.125
VP19R1940 - 600.1880.0941.52.185R 1.125
VP15R1550 - 750.1480.0741.52.125R 0.750
VP12R1260 - 900.1220.0611.22.125R 0.750
VP10R1075 - 1100. 0.750
VP8R890 - 1400. 0.750
VP6R6110 - 1750.0650.03251.22.125R 0.750
VP5R5140 - 2200.0510.02551.22.125R 0.750
VP4R4170 - 2600.0430.02151.22.125R 0.750
VP3R3220 - 3250.0340.0171.22.125R 0.750