PendEl Technology

Engineering Guided By Experience

PendEl TWTs are known for their high RF power, broad bandwidth, and exceptional reliability. That’s because we fabricate our devices with an especially rugged slow wave structure that is unique in the industry. In our application, we braze ceramic blocks to both the body of the tube and to a precisely wound copper helix establishing intimate thermal contact and robust mechanical integrity that is much superior to the more conventional rod-supported, compressed tungsten helix structures used by others. The PendEl structure exhibits cooler circuit operation, lower RF losses, and a more robust internal attenuator permitting the TWT to operate into much higher levels of load impedance mismatch (high VSWR) without damage.

To aid in our device analysis and design, PendEl uses sophisticated computer codes to simulate the electron beam, cold circuit, and large signal characteristics of the traveling wave tube (EGUN, CTLSS, Christine 1-D, and more).