Latching Waveguide switches

Latching Waveguide Switches

Waveguide switches enable switching between two RF channels. The latching type is stable in both positions without holding current. Manual and automatic (electromagnetic) actuators are available.

All Latching Waveguide Switch models have low VSWR and high power handling capacity. They withstand the full power rating of the waveguide and most models can be pressurized to 0.2 MPa (2 ATO) for high peak power applications

What is a Latching Waveguide Switch?

Latching Waveguide Switches have a square stator with four waveguide ports. The rotor, which is fitted in the stator, has two or three channels. Electrical continuity between rotor and stator is achieved by means of quarter wave chokes. These chokes provide extremely high isolation between the channels and ensure unchanged high electrical performance throughout the lifetime of the switch.

Mechanical waveguide switches ensure:

High isolation for less interference between channels
Low insertion loss to improve radar performance
High power capability for maximizing radar range
Long life and excellent durability

For all latching models, the current is automatically switched off when the rotor is in position. One or several sets of position indicators are available with all models of actuators. Some models can be supplied with a manual override knob for manual position setting.

Latching Waveguide Switches applications

Waveguide switches are widely used in microwave systems. They are used in radars for redundancy transmitters, connection to high power dummy load and for test purposes. They are also used in satellite communications for redundancy applications and in test systems to select various signal paths, etc.