Teledyne Microwave UK uses a range of
custom packaged in-house specified PIN diodes across our full range of waveguide limiters.
The PIN diode is embodied in the solid-state section of the waveguide limiter, providing the high levels of isolation required to protect sensitive receiver hardware.
Whilst the solid-state limiter can handle all normal operating power levels, in extreme cases of very high peak operational power levels, or where a high-power fault condition may persist, a gas switch can be included to significantly enhance power-handling capability.
The gas-plasma stage (Gas switch or Pre-TR Tube) takes the form of a sealed quartz tube that can be fitted on the input of the solid-state section of the limiter. Teledyne utilizes a range of gas mixes, which can be customized to individual requirements (optionally including radioactive priming).
Additional system functions can be incorporated within the limiter offering a
net SWaP-C (Size, Weight and Power - Cost)
benefit over discrete components.